TY - CPAPER T1 - Development, validation, and application of a three-dimensional quantitative structure-activity relationship model for dioxins and related polycyclic compounds AN - 42234854; 3143060 AU - Waller, CL AU - McKinney, J D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42234854?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Development%2C+validation%2C+and+application+of+a+three-dimensional+quantitative+structure-activity+relationship+model+for+dioxins+and+related+polycyclic+compounds&rft.au=Waller%2C+CL%3BMcKinney%2C+J+D&rft.aulast=Waller&rft.aufirst=CL&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332. Phone: (703)438-3115; Fax: (703)438-3113; Email 73162.506ompuserve, Abstracts available. Price $38. Poster Paper No. 1451 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - ARNT expression in C57BL/6N embryonic mice from gestation day 10 to 16 AN - 42230713; 3142101 AU - Abbott, B D AU - Probst, M R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42230713?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=ARNT+expression+in+C57BL%2F6N+embryonic+mice+from+gestation+day+10+to+16&rft.au=Abbott%2C+B+D%3BProbst%2C+M+R&rft.aulast=Abbott&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332. Phone: (703)438-3115; Fax: (703)438-3113; Email 73162.506ompuserve, Abstracts available. Price $38. Poster Paper No. 490 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Host resistance to Trichinella spiralis infection following 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) exposure: Susceptibility of male rats AN - 42230295; 3142163 AU - Luebke, R W AU - Copeland, C B AU - Andrews, D L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42230295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Host+resistance+to+Trichinella+spiralis+infection+following+2%2C3%2C7%2C8-tetrachlorodibenzo-p-dioxin+%28TCDD%29+exposure%3A+Susceptibility+of+male+rats&rft.au=Luebke%2C+R+W%3BCopeland%2C+C+B%3BAndrews%2C+D+L&rft.aulast=Luebke&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332. Phone: (703)438-3115; Fax: (703)438-3113; Email 73162.506ompuserve, Abstracts available. Price $38. Poster Paper No. 552 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Comparison of effects of two drinking water disinfection by-products (DBPs) on sperm motility in the rat AN - 42229777; 3142949 AU - Klinefelter, G R AU - DeAngelo, T B AU - Suarez, J D AU - Roberts, N L AU - Gray, LE Jr Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42229777?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Comparison+of+effects+of+two+drinking+water+disinfection+by-products+%28DBPs%29+on+sperm+motility+in+the+rat&rft.au=Klinefelter%2C+G+R%3BDeAngelo%2C+T+B%3BSuarez%2C+J+D%3BRoberts%2C+N+L%3BGray%2C+LE+Jr&rft.aulast=Klinefelter&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332. Phone: (703)438-3115; Fax: (703)438-3113; Email 73162.506ompuserve, Abstracts available. Price $38. Poster Paper No. 1330 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Consideration of chronic toxicity for ranking of "non-threshold" pollutants under section 112(g) of the clean air act amendments AN - 42228160; 3143149 AU - Caldwell, J C AU - Shoaf, C AU - Cogliano, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42228160?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Consideration+of+chronic+toxicity+for+ranking+of+%22non-threshold%22+pollutants+under+section+112%28g%29+of+the+clean+air+act+amendments&rft.au=Caldwell%2C+J+C%3BShoaf%2C+C%3BCogliano%2C+J&rft.aulast=Caldwell&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332. Phone: (703)438-3115; Fax: (703)438-3113; Email 73162.506ompuserve, Abstracts available. Price $38. Poster Paper No. 1540 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Project ARIES (Analysis of Regional Information for Environmental Screening): Use of sentinel health events (environmental) and the U.S. E.P.A. GIS in computer assisted environmental health surveillance AN - 42227344; 3144490 AU - Stockwell, J R AU - Sorenson, J W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 6500:Mathematics and Computer Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42227344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Project+ARIES+%28Analysis+of+Regional+Information+for+Environmental+Screening%29%3A+Use+of+sentinel+health+events+%28environmental%29+and+the+U.S.+E.P.A.+GIS+in+computer+assisted+environmental+health+surveillance&rft.au=Stockwell%2C+J+R%3BSorenson%2C+J+W&rft.aulast=Stockwell&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: World Computer Graphics Foundation, University of South Florida - SOC 107, 4202 East Fowler Avenue, Tampa, FL 33620-8100 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Analysis of the 1,4-dioxane carcinogenicity dosimetry AN - 42227330; 3142364 AU - Holder, J W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42227330?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Analysis+of+the+1%2C4-dioxane+carcinogenicity+dosimetry&rft.au=Holder%2C+J+W&rft.aulast=Holder&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332. Phone: (703)438-3115; Fax: (703)438-3113; Email 73162.506ompuserve, Abstracts available. Price $38. Poster Paper No. 753 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Developmental exposure to Aroclor 1254 causes low-frequency hearing loss in rats AN - 42225740; 3142462 AU - Goldey, E S AU - Kehn, L S AU - Crofton, K M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42225740?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Developmental+exposure+to+Aroclor+1254+causes+low-frequency+hearing+loss+in+rats&rft.au=Goldey%2C+E+S%3BKehn%2C+L+S%3BCrofton%2C+K+M&rft.aulast=Goldey&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332. Phone: (703)438-3115; Fax: (703)438-3113; Email 73162.506ompuserve, Abstracts available. Price $38. Poster Paper No. 839 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Pharmacokinetic/pharmacodynamic model for the regional induction of hepatic cytochrome P450 isoforms by TCDD AN - 42225715; 3143064 AU - Andersen, ME AU - Eklund, C AU - Mills, J J AU - Birnbaum, L S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42225715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Pharmacokinetic%2Fpharmacodynamic+model+for+the+regional+induction+of+hepatic+cytochrome+P450+isoforms+by+TCDD&rft.au=Andersen%2C+ME%3BEklund%2C+C%3BMills%2C+J+J%3BBirnbaum%2C+L+S&rft.aulast=Andersen&rft.aufirst=ME&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332. Phone: (703)438-3115; Fax: (703)438-3113; Email 73162.506ompuserve, Abstracts available. Price $38. Poster Paper No. 1455 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Pollution prevention opportunities for complying with air and water rules for the pulp and paper industry AN - 42219031; 3148418 AU - Anderson, D F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42219031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Pollution+prevention+opportunities+for+complying+with+air+and+water+rules+for+the+pulp+and+paper+industry&rft.au=Anderson%2C+D+F&rft.aulast=Anderson&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Water Environment Federation, Publication Department, 601 Wythe Street, Alexandria, VA 22314-1994, Full papers available. Price $150. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - EGADS AN - 42215175; 3130105 AU - Gilbert, B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 6500:Mathematics and Computer Science KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42215175?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=EGADS&rft.au=Gilbert%2C+B&rft.aulast=Gilbert&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air and Waste Management Association, 1 Gateway Center, 3rd Floor, Pittsburgh, PA 15222, USA. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Transborder hazardous waste data electronic data interchange (EDI) project: The opportunities and challenges of moving data electronically through EDI AN - 42210024; 3130137 AU - Leopard, M G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 6500:Mathematics and Computer Science KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42210024?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Transborder+hazardous+waste+data+electronic+data+interchange+%28EDI%29+project%3A+The+opportunities+and+challenges+of+moving+data+electronically+through+EDI&rft.au=Leopard%2C+M+G&rft.aulast=Leopard&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air and Waste Management Association, 1 Gateway Center, 3rd Floor, Pittsburgh, PA 15222, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Polychlorinated biphenyl partitioning and bioaccumulation in Green Bay, Lake Michigan AN - 42209156; 3140293 AU - Endicott, D AU - Griesmer, D AU - Kreis, R AU - Mackelburg, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42209156?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Polychlorinated+biphenyl+partitioning+and+bioaccumulation+in+Green+Bay%2C+Lake+Michigan&rft.au=Endicott%2C+D%3BGriesmer%2C+D%3BKreis%2C+R%3BMackelburg%2C+L&rft.aulast=Endicott&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmental Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501-3307, USA, Abstracts available. Price $30 (includes shipping). Poster Paper No. TD06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Interfacing SAS to oricle in the UNIX environment AN - 42208845; 3130122 AU - Matheny, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 6500:Mathematics and Computer Science KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42208845?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Interfacing+SAS+to+oricle+in+the+UNIX+environment&rft.au=Matheny%2C+R&rft.aulast=Matheny&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air and Waste Management Association, 1 Gateway Center, 3rd Floor, Pittsburgh, PA 15222, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - National relational DBMS implementation at EPA AN - 42207498; 3130128 AU - Obenschain, J AU - Vandiver Bradow, F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 6500:Mathematics and Computer Science KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42207498?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=National+relational+DBMS+implementation+at+EPA&rft.au=Obenschain%2C+J%3BVandiver+Bradow%2C+F&rft.aulast=Obenschain&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air and Waste Management Association, 1 Gateway Center, 3rd Floor, Pittsburgh, PA 15222, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Modeling of regional-scale atmospheric mercury concentration and deposition patterns using RELMAP AN - 42204154; 3139812 AU - Bullock, OR Jr AU - Benjey, W AU - Keating, M H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42204154?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Recent+research+developments+and+their+effect+on+the+risk+assessment+for+radon+and+its+progeny&rft.au=Cothern%2C+C+R&rft.aulast=Cothern&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmental Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501-3307, USA, Abstracts available. Price $30 (includes shipping). Paper No. 342 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Structure/activity relationships for biodegradability and their role in environmental assessment AN - 42203053; 3139656 AU - Boethling, R S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42203053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Structure%2Factivity+relationships+for+biodegradability+and+their+role+in+environmental+assessment&rft.au=Boethling%2C+R+S&rft.aulast=Boethling&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Breastfeeding+Medicine&rft.issn=15568253&rft_id=info:doi/10.1089%2Fbfm.2014.0023 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmental Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501-3307, USA, Abstracts available. Price $30 (includes shipping). Paper No. 186 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Lake county pollution control efforts AN - 42202138; 3130331 AU - Mollahan, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42202138?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Lake+county+pollution+control+efforts&rft.au=Mollahan%2C+R&rft.aulast=Mollahan&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Water Resources Association, 950 Herndon Parkway, Suite 300, Herndon, VA 22070-5528, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Defining the extent of Chesapeake Bay toxics problems: Findings from the basinwide strategy reevaluation AN - 42200481; 3140355 AU - Batiuk, R A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42200481?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Defining+the+extent+of+Chesapeake+Bay+toxics+problems%3A+Findings+from+the+basinwide+strategy+reevaluation&rft.au=Batiuk%2C+R+A&rft.aulast=Batiuk&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmental Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501-3307, USA, Abstracts available. Price $30 (includes shipping). Poster Paper No. TF14 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Pharmacokinetic basis of risk assessment AN - 42182120; 3130076 AU - Andersen, ME Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1500:Biochemistry KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42182120?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Pharmacokinetic+basis+of+risk+assessment&rft.au=Andersen%2C+ME&rft.aulast=Andersen&rft.aufirst=ME&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: International Society for the Study of Xenobiotics, PO Box 3, Cabin John, MD 20818, USA, Abstracts available. Price $25. ISSN 1061-3439. Paper No. 37 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of CO sub(2) and climate change on forest trees: The TERA project AN - 42162383; 3121497 AU - Rygiewicz, P T AU - Tingey, D T AU - Johnson, M G AU - McVeety, B D AU - Olszyk, D M AU - Shimabuku, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42162383?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effects+of+CO+sub%282%29+and+climate+change+on+forest+trees%3A+The+TERA+project&rft.au=Rygiewicz%2C+P+T%3BTingey%2C+D+T%3BJohnson%2C+M+G%3BMcVeety%2C+B+D%3BOlszyk%2C+D+M%3BShimabuku%2C+R&rft.aulast=Rygiewicz&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Institute of Biological Sciences, 730 11th St., NW, Washington, DC 20001-4521, Price $10. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hg cycling, transformations AN - 42059390; 3101707 AU - Jeffery, W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42059390?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hg+cycling%2C+transformations&rft.au=Jeffery%2C+W&rft.aulast=Jeffery&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Society for Microbiology, 1325 Massachusetts Ave., NW, Washington, DC 20005, Abstracts. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Air monitoring and air action levels: A case study of the Brio refining superfund site AN - 42049849; 3094742 AU - Hansen, MA AU - Meyer, J C AU - Pritchett, T C AU - Turpin, R AU - Forrester, T M AU - Wilder, L AU - Pettigrew, G L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42049849?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Air+monitoring+and+air+action+levels%3A+A+case+study+of+the+Brio+refining+superfund+site&rft.au=Hansen%2C+MA%3BMeyer%2C+J+C%3BPritchett%2C+T+C%3BTurpin%2C+R%3BForrester%2C+T+M%3BWilder%2C+L%3BPettigrew%2C+G+L&rft.aulast=Hansen&rft.aufirst=MA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, One Gateway Center, 3rd Floor, Pittsburgh, PA 15222, USA. Paper No. 94-RA127A.06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Pollution prevention practices at two CCA wood-treatment plants AN - 42049822; 3094727 AU - Randall, P M AU - Chen, ASC Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42049822?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Pollution+prevention+practices+at+two+CCA+wood-treatment+plants&rft.au=Randall%2C+P+M%3BChen%2C+ASC&rft.aulast=Randall&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=337&rft.isbn=&rft.btitle=&rft.title=Journal+of+Studies+on+Alcohol+and+Drugs&rft.issn=19371888&rft_id=info:doi/10.15288%2Fjsad.2013.74.337 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, One Gateway Center, 3rd Floor, Pittsburgh, PA 15222, USA. Paper No. 94-RP122B.04 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Exocrine pancreatic neoplasms in the mummichog (Fundulus heteroclitus) from a creosote-contaminated site AN - 42043455; 3113474 AU - Fournie, J W AU - Vogelbein, W K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42043455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Exocrine+pancreatic+neoplasms+in+the+mummichog+%28Fundulus+heteroclitus%29+from+a+creosote-contaminated+site&rft.au=Fournie%2C+J+W%3BVogelbein%2C+W+K&rft.aulast=Fournie&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: School of Veterinary Medicine, Dept. of Medicine and Epidemiology, University of California at Davis, Davis, CA 95616-8737 phone: (916) 752-1363 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Survey of airborne bacteria at four diverse locations in Oregon: Urban, rural, forest, and coastal AN - 42042873; 3104163 AU - Shaffer, B T AU - Lighthart, B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42042873?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Survey+of+airborne+bacteria+at+four+diverse+locations+in+Oregon%3A+Urban%2C+rural%2C+forest%2C+and+coastal&rft.au=Shaffer%2C+B+T%3BLighthart%2C+B&rft.aulast=Shaffer&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Society for Microbiology, 1325 Massachusetts Ave., NW, Washington, DC 20005, Abstracts. Poster Paper No. N194 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Metastasizing cardiac hemangioendotheliosarcomas in a cohort of small teleost fish: Prevalence and histopathology AN - 42040651; 3113472 AU - Couch, JA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42040651?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Bayou+Bonfouca+Superfund+Site%3A+Case+study+of+selected+issues&rft.au=Griswold%2C+R+M%3BGilrein%2C+SA&rft.aulast=Griswold&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: School of Veterinary Medicine, Dept. of Medicine and Epidemiology, University of California at Davis, Davis, CA 95616-8737 phone: (916) 752-1363 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Health risk assessment (HRA) guidance for OB/OD facilities in California AN - 42034209; 3094600 AU - Eli, A M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42034209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Health+risk+assessment+%28HRA%29+guidance+for+OB%2FOD+facilities+in+California&rft.au=Eli%2C+A+M&rft.aulast=Eli&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, One Gateway Center, 3rd Floor, Pittsburgh, PA 15222, USA. Paper No. 94-WP98.02 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - National human activity pattern survey (NHAPS): Use of activity data for human exposure assessment AN - 42031685; 3094478 AU - Nelson, W C AU - Ott, W R AU - Robinson, J P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42031685?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=National+human+activity+pattern+survey+%28NHAPS%29%3A+Use+of+activity+data+for+human+exposure+assessment&rft.au=Nelson%2C+W+C%3BOtt%2C+W+R%3BRobinson%2C+J+P&rft.aulast=Nelson&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/10.2196%2Fjmir.2673 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, One Gateway Center, 3rd Floor, Pittsburgh, PA 15222, USA. Paper No. 94-WA75A.01 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Use of receptor and dispersion modeling principles in assessing pre- and post-abatement conditions of an emission source AN - 42028325; 3094228 AU - Mukerjee, S AU - Stevens, R K AU - Lumpkin, T A AU - Fox, D L AU - Ma, Hwong-wen AU - Somerville, M C AU - Stiles, D C AU - Kellogg, R B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42028325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Use+of+receptor+and+dispersion+modeling+principles+in+assessing+pre-+and+post-abatement+conditions+of+an+emission+source&rft.au=Mukerjee%2C+S%3BStevens%2C+R+K%3BLumpkin%2C+T+A%3BFox%2C+D+L%3BMa%2C+Hwong-wen%3BSomerville%2C+M+C%3BStiles%2C+D+C%3BKellogg%2C+R+B&rft.aulast=Mukerjee&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, One Gateway Center, 3rd Floor, Pittsburgh, PA 15222, USA. Paper No. 94-TA30.01 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Pharmacokinetics of soil-lead absorption into immature swine following subchronic oral and IV exposure AN - 42027788; 3086326 AU - Weis, C P AU - Poppenga, R L AU - Thacker, B J AU - Henningsen, G AU - Curtis, A AU - Jolly, R AU - Harpstead, T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42027788?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Pharmacokinetics+of+soil-lead+absorption+into+immature+swine+following+subchronic+oral+and+IV+exposure&rft.au=Weis%2C+C+P%3BPoppenga%2C+R+L%3BThacker%2C+B+J%3BHenningsen%2C+G%3BCurtis%2C+A%3BJolly%2C+R%3BHarpstead%2C+T&rft.aulast=Weis&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332, USA, Price $38.. Poster Paper No. 395 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - EPA's FIRE (Factor Information Retrieval) - The system and its contents AN - 42027762; 3094866 AU - Pope, A A AU - Blackley, C R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42027762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=EPA%27s+FIRE+%28Factor+Information+Retrieval%29+-+The+system+and+its+contents&rft.au=Pope%2C+A+A%3BBlackley%2C+C+R&rft.aulast=Pope&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, One Gateway Center, 3rd Floor, Pittsburgh, PA 15222, USA. Paper No. 94-FA146.06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effect of high-molecular-weight polycyclic aromatic hydrocarbons on pyrene degradation AN - 42026934; 3101907 AU - Molina, M AU - Araujo, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42026934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effect+of+high-molecular-weight+polycyclic+aromatic+hydrocarbons+on+pyrene+degradation&rft.au=Molina%2C+M%3BAraujo%2C+R&rft.aulast=Molina&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Society for Microbiology, 1325 Massachusetts Ave., NW, Washington, DC 20005, Abstracts. Poster Paper No. Q141 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Computer supported evaluation of criteria for industrial waste landfill site selection AN - 42022097; 3094833 AU - Olbina, R AU - Dolnicar, D AU - Vrtacnik, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42022097?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Marriage+and+Family&rft.atitle=The+effects+of+family+structure+on+African+American+adolescents%27+marijuana+use&rft.au=Mandara%2C+Jelani%3BRogers%2C+Sheba+Y.%3BZinbarg%2C+Richard+E.&rft.aulast=Mandara&rft.aufirst=Jelani&rft.date=2011-06-01&rft.volume=73&rft.issue=3&rft.spage=557&rft.isbn=&rft.btitle=&rft.title=Journal+of+Marriage+and+Family&rft.issn=00222445&rft_id=info:doi/10.1111%2Fj.1741-3737.2011.00832.x LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, One Gateway Center, 3rd Floor, Pittsburgh, PA 15222, USA. Paper No. 94-RP140.01 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Rethinking the RCRA definition of solid waste AN - 42019866; 3094145 AU - Brown, N B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42019866?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Rethinking+the+RCRA+definition+of+solid+waste&rft.au=Brown%2C+N+B&rft.aulast=Brown&rft.aufirst=N&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, One Gateway Center, 3rd Floor, Pittsburgh, PA 15222, USA. Paper No. 94-MP9.01 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Automated respiration method for assessing the toxicity of zinc on soil microorganisms AN - 42009313; 3102981 AU - Hendricks, C W AU - Rossignol, A AU - Boening, D W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42009313?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Automated+respiration+method+for+assessing+the+toxicity+of+zinc+on+soil+microorganisms&rft.au=Hendricks%2C+C+W%3BRossignol%2C+A%3BBoening%2C+D+W&rft.aulast=Hendricks&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Society for Microbiology, 1325 Massachusetts Ave., NW, Washington, DC 20005, Abstracts. Poster Paper No. N95 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effect of a vitamin A enriched diet on the LLNA AN - 42009023; 3087189 AU - Sailstad, D M AU - Deshpande AU - Tepper, J S AU - Doerfler, D L AU - Selgrade, MJK Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42009023?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effect+of+a+vitamin+A+enriched+diet+on+the+LLNA&rft.au=Sailstad%2C+D+M%3BDeshpande%3BTepper%2C+J+S%3BDoerfler%2C+D+L%3BSelgrade%2C+MJK&rft.aulast=Sailstad&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332, USA, Price $38.. Poster Paper No. 1261 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Non-cancer quantitative risk assessment for aroclor 1016, a commercial polychlorinated biphenyl mixture AN - 42005831; 3087519 AU - Cicmanec, J L AU - Poirier, KA AU - Dourson, M L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42005831?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Non-cancer+quantitative+risk+assessment+for+aroclor+1016%2C+a+commercial+polychlorinated+biphenyl+mixture&rft.au=Cicmanec%2C+J+L%3BPoirier%2C+KA%3BDourson%2C+M+L&rft.aulast=Cicmanec&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332, USA, Price $38.. Paper No. 1593 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Role of monitoring in ecological risk assessment: An EMAP example AN - 42005755; 3075486 AU - Gentile, J H AU - Paul, J F AU - Scott, K J AU - Linthurst, R A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42005755?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Role+of+monitoring+in+ecological+risk+assessment%3A+An+EMAP+example&rft.au=Gentile%2C+J+H%3BPaul%2C+J+F%3BScott%2C+K+J%3BLinthurst%2C+R+A&rft.aulast=Gentile&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. 143 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Metam sodium suppresses the hormonal control of ovulation in the rat: Relationship to changes in hypothalamic catecholamines AN - 42004193; 3086145 AU - Goldman, J M AU - Stoker, TE AU - Cooper, R L AU - McElroy, W K AU - Hein, J F AU - Gray, LE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42004193?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Metam+sodium+suppresses+the+hormonal+control+of+ovulation+in+the+rat%3A+Relationship+to+changes+in+hypothalamic+catecholamines&rft.au=Goldman%2C+J+M%3BStoker%2C+TE%3BCooper%2C+R+L%3BMcElroy%2C+W+K%3BHein%2C+J+F%3BGray%2C+LE&rft.aulast=Goldman&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332, USA, Price $38.. Poster Paper No. 214 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Methyl tertiary butyl ether: Cancer risk assessment issues AN - 42002309; 3086468 AU - Hiremath, C B AU - Parker, J C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42002309?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Methyl+tertiary+butyl+ether%3A+Cancer+risk+assessment+issues&rft.au=Hiremath%2C+C+B%3BParker%2C+J+C&rft.aulast=Hiremath&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332, USA, Price $38.. Poster Paper No. 540 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Differential toxicity of menadione and menadione sodium bisulfite in rainbow trout hepatocytes AN - 41999589; 3086553 AU - Schmieder, P AU - Kolanczyk, R AU - Fitzsommons, P AU - Keogh, K AU - Spizzo, T AU - Hammermeister, D AU - Hoffman, A AU - Johnson, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41999589?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Differential+toxicity+of+menadione+and+menadione+sodium+bisulfite+in+rainbow+trout+hepatocytes&rft.au=Schmieder%2C+P%3BKolanczyk%2C+R%3BFitzsommons%2C+P%3BKeogh%2C+K%3BSpizzo%2C+T%3BHammermeister%2C+D%3BHoffman%2C+A%3BJohnson%2C+R&rft.aulast=Schmieder&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332, USA, Price $38.. Poster Paper No. 625 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Comparison of the T cell-independent humoral response of mice and rats exposed to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) AN - 41995890; 3085951 AU - Smialowicz, R AU - Riddle, M AU - Williams, W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41995890?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Comparison+of+the+T+cell-independent+humoral+response+of+mice+and+rats+exposed+to+2%2C3%2C7%2C8-tetrachlorodibenzo-p-dioxin+%28TCDD%29&rft.au=Smialowicz%2C+R%3BRiddle%2C+M%3BWilliams%2C+W&rft.aulast=Smialowicz&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 22090-5332, USA, Price $38.. Paper No. 18 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Environmental justice: New challenges at the national level AN - 41992200; 3072281 AU - Gaylord, CE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:MULTIDISCIPLINARY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41992200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Environmental+justice%3A+New+challenges+at+the+national+level&rft.au=Gaylord%2C+CE&rft.aulast=Gaylord&rft.aufirst=CE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Customer Service, AAAS Office of Membership and Meetings, 1333 H St., NW, Washington, DC 20005, USA, Abstracts. Price $25. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - EPA's implementation of aquatic life metals criteria AN - 41989290; 3074964 AU - Heber, MA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41989290?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=EPA%27s+implementation+of+aquatic+life+metals+criteria&rft.au=Heber%2C+MA&rft.aulast=Heber&rft.aufirst=MA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 037 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Use of a metabolic blocker to assess the metabolism of organophosphate insecticides by aquatic macroinvertebrates AN - 41977001; 3075847 AU - Collyard, SA AU - Ankley, G T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41977001?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Use+of+a+metabolic+blocker+to+assess+the+metabolism+of+organophosphate+insecticides+by+aquatic+macroinvertebrates&rft.au=Collyard%2C+SA%3BAnkley%2C+G+T&rft.aulast=Collyard&rft.aufirst=SA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. P542 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Overview of EPA's avian granular initiative AN - 41972604; 3075264 AU - Rice, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41972604?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Overview+of+EPA%27s+avian+granular+initiative&rft.au=Rice%2C+M&rft.aulast=Rice&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=1091&rft.isbn=&rft.btitle=&rft.title=Alcoholism%3A+Clinical+and+Experimental+Research&rft.issn=01456008&rft_id=info:doi/10.1111%2Fj.1530-0277.2011.01698.x LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 346 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Natural biodegradation of BTEX compounds AN - 41972577; 3074965 AU - Wilson, J T AU - Kampbell, D H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41972577?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Natural+biodegradation+of+BTEX+compounds&rft.au=Wilson%2C+J+T%3BKampbell%2C+D+H&rft.aulast=Wilson&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 038 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Influence of natural physico-chemical properties of sediments on toxicity test results with three freshwater benthic invertebrates AN - 41971265; 3075195 AU - Ankley, G T AU - Benoit, DA AU - Balogh, J C AU - Reynoldson, T B AU - Day, KE AU - Hoke, R A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41971265?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Influence+of+natural+physico-chemical+properties+of+sediments+on+toxicity+test+results+with+three+freshwater+benthic+invertebrates&rft.au=Ankley%2C+G+T%3BBenoit%2C+DA%3BBalogh%2C+J+C%3BReynoldson%2C+T+B%3BDay%2C+KE%3BHoke%2C+R+A&rft.aulast=Ankley&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. 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Paper No. 273 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Identifying environmentally sensitive areas under the oil pollution act AN - 41971056; 3075543 AU - Lively-Diebold, B AU - Pease, AL AU - Watson, S N AU - Wasel, P A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41971056?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Identifying+environmentally+sensitive+areas+under+the+oil+pollution+act&rft.au=Lively-Diebold%2C+B%3BPease%2C+AL%3BWatson%2C+S+N%3BWasel%2C+P+A&rft.aulast=Lively-Diebold&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. PD39 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Assessing the risk to aquatic life using national and site-specific water quality criteria AN - 41970743; 3075485 AU - Spehar, R L AU - Carlson, A R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41970743?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Assessing+the+risk+to+aquatic+life+using+national+and+site-specific+water+quality+criteria&rft.au=Spehar%2C+R+L%3BCarlson%2C+A+R&rft.aulast=Spehar&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. 142 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Bioaccumulation of organochlorines from sediments by oligochaetes and fishes: Comparison of laboratory and field studies AN - 41958556; 3075064 AU - Ankley, G T AU - Cook, P M AU - Call, D J AU - Hoke, R A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41958556?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Bioaccumulation+of+organochlorines+from+sediments+by+oligochaetes+and+fishes%3A+Comparison+of+laboratory+and+field+studies&rft.au=Ankley%2C+G+T%3BCook%2C+P+M%3BCall%2C+D+J%3BHoke%2C+R+A&rft.aulast=Ankley&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 139 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Status of ecological risk assessment guidelines development at EPA AN - 41953338; 3074878 AU - Van der Schalie, WH AU - Norton, S B AU - Gentile, J H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41953338?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Status+of+ecological+risk+assessment+guidelines+development+at+EPA&rft.au=Van+der+Schalie%2C+WH%3BNorton%2C+S+B%3BGentile%2C+J+H&rft.aulast=Van+der+Schalie&rft.aufirst=WH&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. E109 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Meteorological factors influencing daily maximum ozone concentration in a regional air quality model AN - 41952572; 3060984 AU - Lee, Chong Bum AU - Byun, Daewon W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41952572?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Meteorological+factors+influencing+daily+maximum+ozone+concentration+in+a+regional+air+quality+model&rft.au=Lee%2C+Chong+Bum%3BByun%2C+Daewon+W&rft.aulast=Lee&rft.aufirst=Chong&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association,One Gateway Center Third Floor, Pittsburgh, PA 15222; ph: (412) 232-3444., Abstracts Paper No. OT7-I.7 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Amino acid-mediated excitotoxicity AN - 41950915; 3057024 AU - Tilson, H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41950915?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Amino+acid-mediated+excitotoxicity&rft.au=Tilson%2C+H&rft.aulast=Tilson&rft.aufirst=H&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ACT9650 Rockville Pike, Bethesda, MD 20814, USA; Telephone: (301) 530-0033, Abstracts N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Retrospective analysis of pesticide field studies: Approaches and preliminary findings AN - 41947986; 3075164 AU - Buerger, T T AU - Bennett, R S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41947986?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Retrospective+analysis+of+pesticide+field+studies%3A+Approaches+and+preliminary+findings&rft.au=Buerger%2C+T+T%3BBennett%2C+R+S&rft.aulast=Buerger&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 242 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Cost effectiveness of nonpoint source control AN - 41894530; 2968484 AU - Shuyler, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41894530?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Cost+effectiveness+of+nonpoint+source+control&rft.au=Shuyler%2C+L&rft.aulast=Shuyler&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Coastal Zone 93, PO Box 4148, Foster City, CA 94404, USA, Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Expected utility sulphur dioxide emissions under the U.S. acid rain control program AN - 41877938; 2966054 AU - Montgomery, T L AU - Hillock, C S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41877938?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Innovative+monitoring+technologies+for+wellhead+protection&rft.au=Eschner%2C+E%3BSchroedl%3BMoore%2C+BA%3BGardner%2C+S+P&rft.aulast=Eschner&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: A&WMA, PO Box 2861, Pittsburgh, PA 15230, USA; Telephone: (412) 232-3444; Fax: (412) 232-3450, Proceedings Paper No. 93-RP-150.02 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Czech air toxics study (CATS) project summary AN - 41877506; 2965818 AU - Stevens, R K AU - Pinto, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41877506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Czech+air+toxics+study+%28CATS%29+project+summary&rft.au=Stevens%2C+R+K%3BPinto%2C+J&rft.aulast=Stevens&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: A&WMA, PO Box 2861, Pittsburgh, PA 15230, USA; Telephone: (412) 232-3444; Fax: (412) 232-3450, Proceedings Paper No. 93-RA-128A.03 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Preparing for future sources of information for environmental protection AN - 41874434; 2949673 AU - Mace, TH Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41874434?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Preparing+for+future+sources+of+information+for+environmental+protection&rft.au=Mace%2C+TH&rft.aulast=Mace&rft.aufirst=TH&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ERIM, PO Box 134001, Ann Arbor, MI 48113-4001, USA; Phone: 313/994-1200 ext. 3234; Fax: 313/994-5123; Internet: wallmanaxb.erim.org; Telex: 4940991 ERIMARB, Proceedings, $135.00 Paper No. 8-2 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Update on EPA's experience with method 301: Field validation of emission concentrations AN - 41868394; 2966020 AU - Toney, M L AU - Ward, TE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41868394?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Update+on+EPA%27s+experience+with+method+301%3A+Field+validation+of+emission+concentrations&rft.au=Toney%2C+M+L%3BWard%2C+TE&rft.aulast=Toney&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: A&WMA, PO Box 2861, Pittsburgh, PA 15230, USA; Telephone: (412) 232-3444; Fax: (412) 232-3450, Proceedings Paper No. 93-RP-145.01 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Stabilization of radiologically-contaminated soil and debris at the Denver Radium Superfund Site AN - 41867591; 2965387 AU - Thomas, R J AU - Mullen, J C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41867591?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Measuring+and+assuring+progress+and+maintenance&rft.au=Johnson%2C+D+G&rft.aulast=Johnson&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: A&WMA, PO Box 2861, Pittsburgh, PA 15230, USA; Telephone: (412) 232-3444; Fax: (412) 232-3450, Proceedings Paper No. 93-WP-88B.04 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Public health issues in the Gulf of Mexico AN - 41862267; 2969037 AU - Kopfler, F C AU - Puffer, A J AU - Abdelghani, A A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41862267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Public+health+issues+in+the+Gulf+of+Mexico&rft.au=Kopfler%2C+F+C%3BPuffer%2C+A+J%3BAbdelghani%2C+A+A&rft.aulast=Kopfler&rft.aufirst=F&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Coastal Zone 93, PO Box 4148, Foster City, CA 94404, USA, Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - AIRS graphics: A data exploration and quality assurance tool AN - 41861238; 2964040 AU - Link, TE AU - Dessent, T A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41861238?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Method+development+for+and+practical%2Fregulatory+application+of+sediment+TIEs&rft.au=Ankley%2C+G%3BBerigan%2C+M+K%3BDierkes%2C+J+R%3BHoke%2C+R+A&rft.aulast=Ankley&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: A&WMA, PO Box 2861, Pittsburgh, PA 15230, USA; Telephone: (412) 232-3444; Fax: (412) 232-3450, Proceedings Paper No. 93-MP-15.04 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Ground water remediation at contiguous facilities AN - 41860183; 2939991 AU - Anderson, P A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41860183?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Ground+water+remediation+at+contiguous+facilities&rft.au=Anderson%2C+P+A&rft.aulast=Anderson&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: AIH, 3416 University Ave. SE, Minneapolis, MN 55414-3328, USA; Telephone: (612) 379-1030; Fax: (612) 379-0169, Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Mutation spectrum of nonionizing radiation at the hisG46 allele of Salmonella AN - 41851252; 2933520 AU - DeMarini, D M AU - Shelton, M L AU - McLaren, K F AU - Messina, D M AU - Polinsky, T A AU - Stankowski, LF Jr Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL KW - U 4500:EXPERIMENTAL MEDICINE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41851252?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effect+of+lung+structure+and+dimensions+on+the+distribution+of+absorbed+reactive+gases+in+the+lung&rft.au=Overton%2C+J+H%3BGraham%2C+R+C&rft.aulast=Overton&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: John Wiley & Sons, Inc., Subscription Department, 9th Floor, 605 Third Avenue, New York, NY 10158, USA; Telephone: (212) 850-6543, Abstracts, Environmental and Molecular Mutagenesis, Volume 21, Supplement 22, 1993, ISSN: 0893-6692 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Presumptive remedy: Technology selection and site characterization for volatile organic compounds AN - 41837861; 2939150 AU - Rosenbloom, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41837861?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Presumptive+remedy%3A+Technology+selection+and+site+characterization+for+volatile+organic+compounds&rft.au=Rosenbloom%2C+J&rft.aulast=Rosenbloom&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA; Telephone: (301) 982-9500; Fax: (301) 220-3870, Proceedings, HMCRI member: $58.50 and non-member: $65.00 Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Evaluation of in situ bioremediation with laboratory microcosms and macrocosms, and in situ macrocosms AN - 41833626; 2916624 AU - Davis-Hoover, W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41833626?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Evaluation+of+in+situ+bioremediation+with+laboratory+microcosms+and+macrocosms%2C+and+in+situ+macrocosms&rft.au=Davis-Hoover%2C+W&rft.aulast=Davis-Hoover&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SAIC, Attn: Technol. 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Washington, PA 19034, USA; Phone: 800 783-3870 or 215 628-9317; Fax: 215 628-8916, Abstract Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Preliminary ecological assessment model for agriculture AN - 41832111; 2900163 AU - Ribic, CA AU - Warner, R E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41832111?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Preliminary+ecological+assessment+model+for+agriculture&rft.au=Ribic%2C+CA%3BWarner%2C+R+E&rft.aulast=Ribic&rft.aufirst=CA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Mercury microbial transformations and their potential for the remediation of a mercury-contaminated site AN - 41829783; 2896978 AU - Barkay, T AU - Turner, R AU - Saouter, E AU - Horn, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41829783?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Mercury+microbial+transformations+and+their+potential+for+the+remediation+of+a+mercury-contaminated+site&rft.au=Barkay%2C+T%3BTurner%2C+R%3BSaouter%2C+E%3BHorn%2C+J&rft.aulast=Barkay&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Conference Group, Phillip Wells, 1989 West Fifth Avenue, Suite 5, Columbus, OH 43212-1912, USA; Telephone: 800-783-6338 or 614-424-5461; Fax: 614-488-5747 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Mutagenicity of drinking water samples predisinfected with chlorine dioxide AN - 41828439; 2934089 AU - Patterson, K S AU - Garner, L AU - Miller, R AU - Lykins, B Jr Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL KW - U 4500:EXPERIMENTAL MEDICINE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41828439?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Mutagenicity+of+drinking+water+samples+predisinfected+with+chlorine+dioxide&rft.au=Patterson%2C+K+S%3BGarner%2C+L%3BMiller%2C+R%3BLykins%2C+B+Jr&rft.aulast=Patterson&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: John Wiley & Sons, Inc., Subscription Department, 9th Floor, 605 Third Avenue, New York, NY 10158, USA; Telephone: (212) 850-6543, Abstracts, Environmental and Molecular Mutagenesis, Volume 21, Supplement 22, 1993, ISSN: 0893-6692 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Documenting the success of bioventing in deep vadose zones: A field study at Hill Air Force Base AN - 41827606; 2896542 AU - Sayles, G AU - Hinchee, R AU - Brenner, R AU - Elliot, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41827606?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Documenting+the+success+of+bioventing+in+deep+vadose+zones%3A+A+field+study+at+Hill+Air+Force+Base&rft.au=Sayles%2C+G%3BHinchee%2C+R%3BBrenner%2C+R%3BElliot%2C+R&rft.aulast=Sayles&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Conference Group, Phillip Wells, 1989 West Fifth Avenue, Suite 5, Columbus, OH 43212-1912, USA; Telephone: 800-783-6338 or 614-424-5461; Fax: 614-488-5747 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Regional assessment of nutrient loadings from agriculture and resulting water quality in the Chesapeake Bay area AN - 41820671; 2900455 AU - Donigian, AS Jr AU - Bicknell, B R AU - Linker, L C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41820671?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Regional+assessment+of+nutrient+loadings+from+agriculture+and+resulting+water+quality+in+the+Chesapeake+Bay+area&rft.au=Donigian%2C+AS+Jr%3BBicknell%2C+B+R%3BLinker%2C+L+C&rft.aulast=Donigian&rft.aufirst=AS&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Field experiences with the EPA/RREL volume reduction unit AN - 41820319; 2916632 AU - Griffiths, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41820319?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Field+experiences+with+the+EPA%2FRREL+volume+reduction+unit&rft.au=Griffiths%2C+R&rft.aulast=Griffiths&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SAIC, Attn: Technol. Transfer Dep., 501 Office Center Drive, Ste. 420, Ft. Washington, PA 19034, USA; Phone: 800 783-3870 or 215 628-9317; Fax: 215 628-8916, Abstract Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Development and evaluation of lead paint abatement technologies: The RREL program AN - 41814282; 2916655 AU - Moore, G T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41814282?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Development+and+evaluation+of+lead+paint+abatement+technologies%3A+The+RREL+program&rft.au=Moore%2C+G+T&rft.aulast=Moore&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SAIC, Attn: Technol. Transfer Dep., 501 Office Center Drive, Ste. 420, Ft. Washington, PA 19034, USA; Phone: 800 783-3870 or 215 628-9317; Fax: 215 628-8916, Abstract Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Results of the EPA MITE program: Evaluation of landfill mining technology AN - 41814133; 2916676 AU - Hitchens, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41814133?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Results+of+the+EPA+MITE+program%3A+Evaluation+of+landfill+mining+technology&rft.au=Hitchens%2C+L&rft.aulast=Hitchens&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SAIC, Attn: Technol. 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Washington, PA 19034, USA; Phone: 800 783-3870 or 215 628-9317; Fax: 215 628-8916, Abstract Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Establishing environmental baselines: The case of global climate change AN - 41813918; 2913396 AU - Herrod, S AU - Scheraga, J D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41813918?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Establishing+environmental+baselines%3A+The+case+of+global+climate+change&rft.au=Herrod%2C+S%3BScheraga%2C+J+D&rft.aulast=Herrod&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: GW4 Conference, Global Warming International Center, One Heritage Plaza, P.O. Box 5275, Woodbridge, IL 60517-0275, USA; Phone: 708 910-1551; Fax: 708 910-1561 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Computer-based system for identifying and predicting ecotoxicological effects of agrichemicals AN - 41803308; 2900774 AU - Bradbury, S AU - Russom, C AU - Schroeder, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41803308?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Computer-based+system+for+identifying+and+predicting+ecotoxicological+effects+of+agrichemicals&rft.au=Bradbury%2C+S%3BRussom%2C+C%3BSchroeder%2C+R&rft.aulast=Bradbury&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227, Poster Paper No. 73 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Bioremediation of soils at a waste oil facility AN - 41794225; 2831507 AU - Cuerra, G AU - Mattews, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41794225?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Dimethylarsinic+acid+treatment+damages+rat+pulmonary+DNA%3A+Relevance+to+arsenic+carcinogenesis&rft.au=Kitchin%2C+K+T&rft.aulast=Kitchin&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: U.S. EPA, Center for Environmental Research Information, Cincinnati, OH 45268, USA, Abstracts N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Alternatives for "clean production" AN - 41777722; 2783660 AU - George, EL Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41777722?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Alternatives+for+%22clean+production%22&rft.au=George%2C+EL&rft.aulast=George&rft.aufirst=EL&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Center for Environmental Research Information, U.S. EPA, 26 W. Martin Luther King Jr., Cincinnati, OH 45268, USA, Abstracts, EPA/600/R-92/028 Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Overview of the urban soil lead abatement demonstration project AN - 41777308; 2827370 AU - Matthews, L S AU - Elias, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41777308?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Stabilization+of+radiologically-contaminated+soil+and+debris+at+the+Denver+Radium+Superfund+Site&rft.au=Thomas%2C+R+J%3BMullen%2C+J+C&rft.aulast=Thomas&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA; Telephone: (301) 982-9500; and Fax: (301) 220-3870, Proceeding, $58.50 members and $65.00 non-members N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Two US EPA bioremediation field initiative studies: Evaluation of in-situ bioventing AN - 41776821; 2783472 AU - Sayles, G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41776821?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Two+US+EPA+bioremediation+field+initiative+studies%3A+Evaluation+of+in-situ+bioventing&rft.au=Sayles%2C+G&rft.aulast=Sayles&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Center for Environmental Research Information, U.S. EPA, 26 W. Martin Luther King Jr., Cincinnati, OH 45268, USA, Abstracts, EPA/600/R-92/028 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Comparison of the effects of ethane dimethanesulphonate on the reproductive system of the hamster and rat AN - 41774590; 2816896 AU - Marshall, E R AU - Gray, LE AU - Ostby, J AU - Klinefelter, G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41774590?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Comparison+of+the+effects+of+ethane+dimethanesulphonate+on+the+reproductive+system+of+the+hamster+and+rat&rft.au=Marshall%2C+E+R%3BGray%2C+LE%3BOstby%2C+J%3BKlinefelter%2C+G&rft.aulast=Marshall&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SSR, 309 West Clark St., Champaign, IL 61820, USA; Telephone: (217) 356-3182, Abstracts, SSR/Supplement Number 1/Biology of Reproduction, Volume 46 Poster Paper No. 290 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Federal review of the aircraft noise assessment process AN - 41771175; 2770317 AU - Dickerson, W D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 8000:PHYSICS AND ASTRONOMY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41771175?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Federal+review+of+the+aircraft+noise+assessment+process&rft.au=Dickerson%2C+W+D&rft.aulast=Dickerson&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Institute of Physics, 500 Sunnyside Blvd., Woodbury, NY 11797, USA; Telephone: (516) 576-2360, Abstracts, Journal of the Acoustical Society of America, Vol. 91, No. 4, Pt. 2, April 1992, ISSN: 0001-4966 Paper No. 2NS3 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Classification of hazardous wastes in California AN - 41762433; 2828813 AU - Marxen, C J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41762433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Classification+of+hazardous+wastes+in+California&rft.au=Marxen%2C+C+J&rft.aulast=Marxen&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA; Telephone: (301) 982-9500; and Fax: (301) 220-3870, Proceeding, $58.50 members and $65.00 non-members N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Rotary kiln incineration of spent potliner from the manufacture of aluminum AN - 41761896; 2783607 AU - Turner, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41761896?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Rotary+kiln+incineration+of+spent+potliner+from+the+manufacture+of+aluminum&rft.au=Turner%2C+R&rft.aulast=Turner&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Center for Environmental Research Information, U.S. EPA, 26 W. Martin Luther King Jr., Cincinnati, OH 45268, USA, Abstracts, EPA/600/R-92/028 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Risk Reduction Engineering Laboratory (RREL) treatability database AN - 41760538; 2783642 AU - Shaul, G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41760538?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Risk+Reduction+Engineering+Laboratory+%28RREL%29+treatability+database&rft.au=Shaul%2C+G&rft.aulast=Shaul&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Center for Environmental Research Information, U.S. EPA, 26 W. Martin Luther King Jr., Cincinnati, OH 45268, USA, Abstracts, EPA/600/R-92/028 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - GIS as applied to Hazardous Waste Management Practice in New England AN - 41752924; 2766027 AU - Franks, C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41752924?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=GIS+as+applied+to+Hazardous+Waste+Management+Practice+in+New+England&rft.au=Franks%2C+C&rft.aulast=Franks&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Tower Conference Management Co., 800 Roosevelt Rd., Build. E, Suite 408, Glen Ellyn, IL 60137-5835, USA; Telephone: (708) 469-3373; Fax: (708) 469-7477, Proceedings, $110.00 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Pesticide treatability data base AN - 41740843; 2783695 AU - Ferguson, T D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41740843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Pesticide+treatability+data+base&rft.au=Ferguson%2C+T+D&rft.aulast=Ferguson&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Center for Environmental Research Information, U.S. EPA, 26 W. Martin Luther King Jr., Cincinnati, OH 45268, USA, Abstracts, EPA/600/R-92/028 Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effect of municipal waste combustion ash monofill leachate on selected containment barrier components AN - 41737671; 2783600 AU - Carson, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41737671?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effect+of+municipal+waste+combustion+ash+monofill+leachate+on+selected+containment+barrier+components&rft.au=Carson%2C+D&rft.aulast=Carson&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Center for Environmental Research Information, U.S. EPA, 26 W. Martin Luther King Jr., Cincinnati, OH 45268, USA, Abstracts, EPA/600/R-92/028 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Emergency response to sodium cyanide spill into Lynches River: Case history AN - 41737344; 2653197 AU - Smith, A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41737344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Emergency+response+to+sodium+cyanide+spill+into+Lynches+River%3A+Case+history&rft.au=Smith%2C+A&rft.aulast=Smith&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - TBD AN - 41733556; 2735246 AU - Caccavari, C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41733556?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=TBD&rft.au=Caccavari%2C+C&rft.aulast=Caccavari&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SAE Customer Service, 400 Commonwealth Dr., Warrendale, PA 15096-0001, USA. Telephone: (412) 776-4970. Fax: (412) 776-0790., $4.00/paper for SAE members, $7.00/paper list Paper No. 920793 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Progress in pollution prevention at federal facilities AN - 41730691; 2721423 AU - Bridges, J S AU - Baker, GE AU - Palmer, K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41730691?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Progress+in+pollution+prevention+at+federal+facilities&rft.au=Bridges%2C+J+S%3BBaker%2C+GE%3BPalmer%2C+K&rft.aulast=Bridges&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA. Fax: (301) 220-3870. Telephone: (301) 982-9500., Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Past, present and future remote sensing applications to dispersion modeling AN - 41722880; 2765796 AU - McElroy, J L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41722880?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Past%2C+present+and+future+remote+sensing+applications+to+dispersion+modeling&rft.au=McElroy%2C+J+L&rft.aulast=McElroy&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, P.O. Box 2861, Pittsburgh, PA 15230, USA; Telephone: (412) 232-3444, Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Community acceptance: It really works! AN - 41714278; 2653314 AU - Pastor, S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41714278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=How+to+conserve+water+and+meet+other+service+objectives%2C+including+environmental+compliance&rft.au=Dyballa%2C+C%3BHogye%2C+S&rft.aulast=Dyballa&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hazard assessment product characterization and toxicological evaluation AN - 41711504; 2690916 AU - McClintock, J T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41711504?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hazard+assessment+product+characterization+and+toxicological+evaluation&rft.au=McClintock%2C+J+T&rft.aulast=McClintock&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: BioEast '92, 1651 Third Avenue, Suite 301, New York, NY 10128, USA. Telephone: (212) 996-5679. Fax: (212) 996-1444. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Status of regulatory development of land disposal restrictions for contaminated soil AN - 41707937; 2692728 AU - Vorbach, J F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41707937?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Status+of+regulatory+development+of+land+disposal+restrictions+for+contaminated+soil&rft.au=Vorbach%2C+J+F&rft.aulast=Vorbach&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: R&D '92, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA. Telephone: (301) 982-9500. Fax: (301) 220-3870., Proceedings, $45.00 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Issues associated with visualizing environmental data AN - 41702896; 2740525 AU - Rhyne, T AU - Bolstad, M AU - Petterson, L AU - Rheingans, P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4000:ELECTRICAL ENGINEERING KW - U 6500:MATHEMATICS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41702896?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Issues+associated+with+visualizing+environmental+data&rft.au=Rhyne%2C+T%3BBolstad%2C+M%3BPetterson%2C+L%3BRheingans%2C+P&rft.aulast=Rhyne&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: North Carolina State Univ., Off. Contin. Educ. and Prof. Dev., Box 7401, Raleigh, NC 27695-7401, USA. Telephone: (919) 515-2261. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Installation restoration: Standardization of DoD QA plans AN - 41695260; 2721380 AU - Cypher, R L AU - Robison, M M AU - Liem, F E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41695260?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Installation+restoration%3A+Standardization+of+DoD+QA+plans&rft.au=Antizoo%2C+J%3BCunningham%2C+J&rft.aulast=Antizoo&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA. Fax: (301) 220-3870. Telephone: (301) 982-9500., Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Minimizing emission from superfund air strippers and soil vapor extractors AN - 41690319; 2653237 AU - Diehl, K M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41690319?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Minimizing+emission+from+superfund+air+strippers+and+soil+vapor+extractors&rft.au=Diehl%2C+K+M&rft.aulast=Diehl&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Impact of NAPL contamination on groundwater pump and treat operation AN - 41689467; 2636027 AU - Mercer, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41689467?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Impact+of+NAPL+contamination+on+groundwater+pump+and+treat+operation&rft.au=Fikslin%2C+T+J%3BWard%2C+SH%3BDuda%2C+S+W&rft.aulast=Fikslin&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA. Telephone: (301) 982-9500. Fax: (301) 220-3870., Proceedings, members: $59.00 and non-members: $65.00 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Community response to Mercury contamination AN - 41687934; 2653309 AU - Croce La Faire, MA AU - Knoller, K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41687934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Community+response+to+Mercury+contamination&rft.au=Croce+La+Faire%2C+MA%3BKnoller%2C+K&rft.aulast=Croce+La+Faire&rft.aufirst=MA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - ARARS screening expert system AN - 41683652; 2637619 AU - Greathouse, D G AU - Clements, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41683652?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=ARARS+screening+expert+system&rft.au=Greathouse%2C+D+G%3BClements%2C+J&rft.aulast=Greathouse&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA. Telephone: (301) 982-9500. Fax: (301) 220-3870., Proceedings, members: $59.00 and non-members: $65.00 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effectiveness of bioremediation in the treatment of the Alaskan oil spill AN - 41682465; 2644317 AU - Pritchard, H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41682465?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effectiveness+of+bioremediation+in+the+treatment+of+the+Alaskan+oil+spill&rft.au=Pritchard%2C+H&rft.aulast=Pritchard&rft.aufirst=H&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SIM, P.O. Box 12534, Arlington, VA 22209-8534, USA. Fax: (703) 941-8790. Telephone: (703) 941-5373., Paper No. S114 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hazard evaluation: A. Product characterization and human health AN - 41680409; 2691038 AU - Briggs, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41680409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hazard+evaluation%3A+A.+Product+characterization+and+human+health&rft.au=Briggs%2C+R&rft.aulast=Briggs&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: BioEast '92, 1651 Third Avenue, Suite 301, New York, NY 10128, USA. Telephone: (212) 996-5679. Fax: (212) 996-1444. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Groundwater remediation evaluation, phase II AN - 41679433; 2636942 AU - Sutter, J AU - Glass, J P AU - Willey, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41679433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Groundwater+remediation+evaluation%2C+phase+II&rft.au=Sutter%2C+J%3BGlass%2C+J+P%3BWilley%2C+R&rft.aulast=Sutter&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA. Telephone: (301) 982-9500. Fax: (301) 220-3870., Proceedings, members: $59.00 and non-members: $65.00 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Expression of Pseudomonas genes encoding for benzoate catabolism may be regulated by both benR and xylS AN - 41669900; 2533174 AU - Jeffrey, W H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41669900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Expression+of+Pseudomonas+genes+encoding+for+benzoate+catabolism+may+be+regulated+by+both+benR+and+xylS&rft.au=Jeffrey%2C+W+H&rft.aulast=Jeffrey&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASM, 1325 Massachusetts Avenue NW, Washington, DC 20005, USA, Poster Paper No. K14 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Plume definition in regions of strong bending AN - 41664649; 2635447 AU - Frick, W E AU - Fox, C G AU - Baumgartner, D J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41664649?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Plume+definition+in+regions+of+strong+bending&rft.au=Frick%2C+W+E%3BFox%2C+C+G%3BBaumgartner%2C+D+J&rft.aulast=Frick&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: A.A. Balkema Publishers, P.O. Box 1675, NL-3000 BR Rotterdam, Netherlands. Telephone: (+31.10) 4145822 or 4145119. Fax: (+31.10) 4135119., Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Aspects of current public pesticide policy AN - 41661546; 2588682 AU - Moore, GE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41661546?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Aspects+of+current+public+pesticide+policy&rft.au=Moore%2C+GE&rft.aulast=Moore&rft.aufirst=GE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASHS, 113 South West St., Suite 400, Alexandria, VA 22314-2824, USA. Telephone: (703) 836-4606., Abstracts, HortScience, Volume 26, Number 6, June 1991, ISSN: 0018-5345, $7.50 Paper No. 808 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Exposure to carbendazim during early pregnancy produces embryo-lethality and developmental defects AN - 41654516; 2596189 AU - Cummings, A M AU - Ebron-McCoy, M T AU - Rogers, J M AU - Barbee, B D AU - Harris, ST Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3500:CLINICAL MEDICINE KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41654516?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Exposure+to+carbendazim+during+early+pregnancy+produces+embryo-lethality+and+developmental+defects&rft.au=Cummings%2C+A+M%3BEbron-McCoy%2C+M+T%3BRogers%2C+J+M%3BBarbee%2C+B+D%3BHarris%2C+ST&rft.aulast=Cummings&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society for the Study of Reproduction, 309 W. Clark St., Champaign, IL 61820, USA. Telephone: (217) 356-3182. Fax: (217) 398-4119., Biology of Reproduction, ISSN: 0006-3363, Supplement Number 1, Volume 44 Paper No. 313 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Bayou Bonfouca Superfund Site: Case study of selected issues AN - 41652685; 2627290 AU - Griswold, R M AU - Gilrein, SA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41652685?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Bayou+Bonfouca+Superfund+Site%3A+Case+study+of+selected+issues&rft.au=Griswold%2C+R+M%3BGilrein%2C+SA&rft.aulast=Griswold&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA. Telephone: (301) 982-9500. Fax: (301) 220-3870., Proceedings, members: $59.00 and non-members: $65.00 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Treatability testing: Developments in support infrastructure AN - 41651427; 2637687 AU - Cummings, J AU - Forlini, M AU - Smith, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41651427?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Treatability+testing%3A+Developments+in+support+infrastructure&rft.au=Cummings%2C+J%3BForlini%2C+M%3BSmith%2C+D&rft.aulast=Cummings&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA. Telephone: (301) 982-9500. Fax: (301) 220-3870., Proceedings, members: $59.00 and non-members: $65.00 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Federal facility environmental budgets: EPA's new role in the planning and evaluation process AN - 41647301; 2635766 AU - Kurgan, M AU - Bellin, P AU - Reinke, K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41647301?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Federal+facility+environmental+budgets%3A+EPA%27s+new+role+in+the+planning+and+evaluation+process&rft.au=Kurgan%2C+M%3BBellin%2C+P%3BReinke%2C+K&rft.aulast=Kurgan&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, 7237 Hanover Parkway, Greenbelt, MD 20770-3602, USA. Telephone: (301) 982-9500. Fax: (301) 220-3870., Proceedings, members: $59.00 and non-members: $65.00 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Are coastal wetland-lake linkages important? AN - 41616625; 3466573 AU - Brazner, J AU - Sierszen, M AU - Keough, J AU - Tanner, D K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41616625?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Are+coastal+wetland-lake+linkages+important%3F&rft.au=Brazner%2C+J%3BSierszen%2C+M%3BKeough%2C+J%3BTanner%2C+D+K&rft.aulast=Brazner&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: North American Benthological Society, P.O. Box 1897, Lawrence, KS 66044-8897, USA; phone: 913-843-1221; fax: 913-843-1274; URL: www.benthos.org, Abstracts available. No charge. Paper No. 187 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Multivariate analysis of macroinvertebrate assemblages to determine impacts on rocky mountain stream ecosystems AN - 41611900; 3466558 AU - Griffith, M B AU - Hill, B H AU - Herlihy, A T AU - Kaufmann, PR Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41611900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Multivariate+analysis+of+macroinvertebrate+assemblages+to+determine+impacts+on+rocky+mountain+stream+ecosystems&rft.au=Griffith%2C+M+B%3BHill%2C+B+H%3BHerlihy%2C+A+T%3BKaufmann%2C+PR&rft.aulast=Griffith&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: North American Benthological Society, P.O. Box 1897, Lawrence, KS 66044-8897, USA; phone: 913-843-1221; fax: 913-843-1274; URL: www.benthos.org, Abstracts available. No charge. Paper No. 172 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Relative influence of regional, watershed and site-specific environmental factors on stream fish assemblages in the lake superior basin AN - 41610689; 3466810 AU - Tanner, D K AU - Brazner, J C AU - Batterman, S L AU - Detenbeck, N E AU - Snarski, V M AU - Olsen, KA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41610689?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Relative+influence+of+regional%2C+watershed+and+site-specific+environmental+factors+on+stream+fish+assemblages+in+the+lake+superior+basin&rft.au=Tanner%2C+D+K%3BBrazner%2C+J+C%3BBatterman%2C+S+L%3BDetenbeck%2C+N+E%3BSnarski%2C+V+M%3BOlsen%2C+KA&rft.aulast=Tanner&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: North American Benthological Society, P.O. Box 1897, Lawrence, KS 66044-8897, USA; phone: 913-843-1221; fax: 913-843-1274; URL: www.benthos.org, Abstracts available. No charge. Poster Paper No. 424 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Assessing exposures to combustor emissions AN - 41609909; 2432721 AU - Dollarhide, J AU - Bruins, R AU - McGinnis, P AU - Nichols, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41609909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Assessing+exposures+to+combustor+emissions&rft.au=Dollarhide%2C+J%3BBruins%2C+R%3BMcGinnis%2C+P%3BNichols%2C+R&rft.aulast=Dollarhide&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th Street, NW, Suite 1100, Washington, DC 20005, USA. Telephone: (202) 371-1393. Fax: (202) 371-1090., Poster Paper No. 710 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Evaluation and methodology for assessing ecological hazard of industrial chemicals under TSCA AN - 41607370; 2464998 AU - Smrchek, J AU - Clements, R AU - Morcock, R AU - Rabert, W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41607370?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Evaluation+and+methodology+for+assessing+ecological+hazard+of+industrial+chemicals+under+TSCA&rft.au=Smrchek%2C+J%3BClements%2C+R%3BMorcock%2C+R%3BRabert%2C+W&rft.aulast=Smrchek&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASTM, 1916 Race Street, Philadelphia, PA 19103, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Method development for and practical/regulatory application of sediment TIEs AN - 41607263; 2464914 AU - Ankley, G AU - Berigan, M K AU - Dierkes, J R AU - Hoke, R A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41607263?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Method+development+for+and+practical%2Fregulatory+application+of+sediment+TIEs&rft.au=Ankley%2C+G%3BBerigan%2C+M+K%3BDierkes%2C+J+R%3BHoke%2C+R+A&rft.aulast=Ankley&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASTM, 1916 Race Street, Philadelphia, PA 19103, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Nitrate toxicity - a case study in the "weight-of-evidence approach" to noncancer risk assessment AN - 41606986; 2432774 AU - Stern, B R AU - Bailey, K AU - Griffin, S AU - Dourson, M L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41606986?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Nitrate+toxicity+-+a+case+study+in+the+%22weight-of-evidence+approach%22+to+noncancer+risk+assessment&rft.au=Stern%2C+B+R%3BBailey%2C+K%3BGriffin%2C+S%3BDourson%2C+M+L&rft.aulast=Stern&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th Street, NW, Suite 1100, Washington, DC 20005, USA. Telephone: (202) 371-1393. Fax: (202) 371-1090., Poster Paper No. 723 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of watershed-level habitat fragmentation on macro-invertebrate communities in relatively undisturbed lake superior streams AN - 41606874; 3466596 AU - Brady, V AU - Detenbeck, N E AU - Brazner, J AU - Batterman, S AU - Elonen, C AU - Tanner, D AU - Snarski, V AU - Thompson, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41606874?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effects+of+watershed-level+habitat+fragmentation+on+macro-invertebrate+communities+in+relatively+undisturbed+lake+superior+streams&rft.au=Brady%2C+V%3BDetenbeck%2C+N+E%3BBrazner%2C+J%3BBatterman%2C+S%3BElonen%2C+C%3BTanner%2C+D%3BSnarski%2C+V%3BThompson%2C+J&rft.aulast=Brady&rft.aufirst=V&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: North American Benthological Society, P.O. Box 1897, Lawrence, KS 66044-8897, USA; phone: 913-843-1221; fax: 913-843-1274; URL: www.benthos.org, Abstracts available. No charge. Paper No. 210 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hybridization of fluorescent dye-labeled rRNA probes to bacteria extracted from sandy marine sediment AN - 41604195; 2536761 AU - Devereux, R AU - Liebert, C AU - Barkay, T AU - Stahl, DA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41604195?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hybridization+of+fluorescent+dye-labeled+rRNA+probes+to+bacteria+extracted+from+sandy+marine+sediment&rft.au=Devereux%2C+R%3BLiebert%2C+C%3BBarkay%2C+T%3BStahl%2C+DA&rft.aulast=Devereux&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASM, 1325 Massachusetts Avenue NW, Washington, DC 20005, USA, Paper No. Q127 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Interagency evaluation of the murine local lymph node assay (LLNA) in the regulatory process AN - 41603703; 3460358 AU - Sailstad, D M AU - Hattan, D G AU - Hill, R AU - Stokes, W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41603703?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Interagency+evaluation+of+the+murine+local+lymph+node+assay+%28LLNA%29+in+the+regulatory+process&rft.au=Sailstad%2C+D+M%3BHattan%2C+D+G%3BHill%2C+R%3BStokes%2C+W&rft.aulast=Sailstad&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Poster Paper No. 1590 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Proposed new risk assessment for boron AN - 41600969; 3459149 AU - Smallwood, C AU - Odin, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41600969?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Proposed+new+risk+assessment+for+boron&rft.au=Smallwood%2C+C%3BOdin%2C+M&rft.aulast=Smallwood&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Poster Paper No. 381 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Developmental toxicity of structurally related disubstituted haloacetic acids in embryo culture AN - 41600518; 3458843 AU - Andrews, JE AU - Schmidt, J AU - Nichols, H AU - Hunter, E S AU - Klinefelter, G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41600518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Developmental+toxicity+of+structurally+related+disubstituted+haloacetic+acids+in+embryo+culture&rft.au=Andrews%2C+JE%3BSchmidt%2C+J%3BNichols%2C+H%3BHunter%2C+E+S%3BKlinefelter%2C+G&rft.aulast=Andrews&rft.aufirst=JE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Paper No. 75 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Dysmorphogenesis and lethality in mink frogs (Rana septentrionalis) exposed to all-trans retinoic acid at different life stages AN - 41600143; 3459476 AU - Makynen, E A AU - Kosian, P A AU - Ankley, G T AU - Degitz, S J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41600143?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Dysmorphogenesis+and+lethality+in+mink+frogs+%28Rana+septentrionalis%29+exposed+to+all-trans+retinoic+acid+at+different+life+stages&rft.au=Makynen%2C+E+A%3BKosian%2C+P+A%3BAnkley%2C+G+T%3BDegitz%2C+S+J&rft.aulast=Makynen&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Poster Paper No. 708 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - California public health goals for endrin, heptachlor/heptachlor epoxide, lindane and methoxychlor AN - 41598199; 3460370 AU - Howd, R AU - Brown, J AU - Jowa, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41598199?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=California+public+health+goals+for+endrin%2C+heptachlor%2Fheptachlor+epoxide%2C+lindane+and+methoxychlor&rft.au=Howd%2C+R%3BBrown%2C+J%3BJowa%2C+L&rft.aulast=Howd&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Poster Paper No. 1602 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Techniques to identify chronic toxicity in effluents AN - 41597448; 2464910 AU - Norborg-King, T AU - Jensen, DA AU - Thompson, JA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41597448?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Techniques+to+identify+chronic+toxicity+in+effluents&rft.au=Norborg-King%2C+T%3BJensen%2C+DA%3BThompson%2C+JA&rft.aulast=Norborg-King&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASTM, 1916 Race Street, Philadelphia, PA 19103, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Life-stage specific effects of all-trans retinoic acid on green frog (Rana clamitans) embryos and tadpoles AN - 41597447; 3459475 AU - Kosian, P A AU - Makynen, E A AU - Ankley, G T AU - Degitz, S J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41597447?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Life-stage+specific+effects+of+all-trans+retinoic+acid+on+green+frog+%28Rana+clamitans%29+embryos+and+tadpoles&rft.au=Kosian%2C+P+A%3BMakynen%2C+E+A%3BAnkley%2C+G+T%3BDegitz%2C+S+J&rft.aulast=Kosian&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Poster Paper No. 707 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effect of mixing ratio on the hepatotoxicity of mixtures of trihalomethane (THM) disinfection byproducts AN - 41596776; 3458878 AU - McDonald, A AU - Gennings, C AU - Hartley, W AU - Teuschler, L K AU - Thiyagarajah, A AU - Sey, Y M AU - Krasner, S W AU - Simmons, JE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41596776?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effect+of+mixing+ratio+on+the+hepatotoxicity+of+mixtures+of+trihalomethane+%28THM%29+disinfection+byproducts&rft.au=McDonald%2C+A%3BGennings%2C+C%3BHartley%2C+W%3BTeuschler%2C+L+K%3BThiyagarajah%2C+A%3BSey%2C+Y+M%3BKrasner%2C+S+W%3BSimmons%2C+JE&rft.aulast=McDonald&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Paper No. 110 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Immunomodulation of class II molecules on rat alveolar type II epithelial cells as a model for the immunotoxicological assessment of inhaled pollutants AN - 41596445; 2434675 AU - Slade, DE AU - Jaskot, R H AU - Richards, J AU - Burleson, G R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41596445?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Immunomodulation+of+class+II+molecules+on+rat+alveolar+type+II+epithelial+cells+as+a+model+for+the+immunotoxicological+assessment+of+inhaled+pollutants&rft.au=Slade%2C+DE%3BJaskot%2C+R+H%3BRichards%2C+J%3BBurleson%2C+G+R&rft.aulast=Slade&rft.aufirst=DE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th Street, NW, Suite 1100, Washington, DC 20005, USA. Telephone: (202) 371-1393. Fax: (202) 371-1090., Poster Paper No. 1264 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Lung cell injury induced by diesel exhaust particles (DEP) in vivo and in vitro: Effects of ozone (O3) as a co-pollutant AN - 41596199; 3460234 AU - Madden, M C AU - Dailey, LA AU - Reilly, D M AU - Ghio, A J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41596199?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Lung+cell+injury+induced+by+diesel+exhaust+particles+%28DEP%29+in+vivo+and+in+vitro%3A+Effects+of+ozone+%28O3%29+as+a+co-pollutant&rft.au=Madden%2C+M+C%3BDailey%2C+LA%3BReilly%2C+D+M%3BGhio%2C+A+J&rft.aulast=Madden&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Poster Paper No. 1466 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Cardioselective oxidation of mitochondrial DNA following subchronic administration of doxorubicin AN - 41595183; 3459727 AU - Serrano, J AU - Palmeira, C M AU - Kuehl, D W AU - Wallace, K B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41595183?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Cardioselective+oxidation+of+mitochondrial+DNA+following+subchronic+administration+of+doxorubicin&rft.au=Serrano%2C+J%3BPalmeira%2C+C+M%3BKuehl%2C+D+W%3BWallace%2C+K+B&rft.aulast=Serrano&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Poster Paper No. 959 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Future of EPA's toxics control program for effluents AN - 41595182; 2464901 AU - Brandes, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41595182?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Future+of+EPA%27s+toxics+control+program+for+effluents&rft.au=Brandes%2C+R&rft.aulast=Brandes&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASTM, 1916 Race Street, Philadelphia, PA 19103, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Quotient method and modeling for ecological risk assessment under TSCA AN - 41594086; 2465013 AU - Rodier, D AU - Mauriello, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41594086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Quotient+method+and+modeling+for+ecological+risk+assessment+under+TSCA&rft.au=Rodier%2C+D%3BMauriello%2C+D&rft.aulast=Rodier&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASTM, 1916 Race Street, Philadelphia, PA 19103, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Watershed treatment effects on sulfate reduction and alkalinity concentrations in north and south shore streams on the western Arm of lake superior AN - 41592794; 3466809 AU - Anderson, L D AU - Elonen, C M AU - Detenbeck, N E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41592794?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Watershed+treatment+effects+on+sulfate+reduction+and+alkalinity+concentrations+in+north+and+south+shore+streams+on+the+western+Arm+of+lake+superior&rft.au=Anderson%2C+L+D%3BElonen%2C+C+M%3BDetenbeck%2C+N+E&rft.aulast=Anderson&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: North American Benthological Society, P.O. Box 1897, Lawrence, KS 66044-8897, USA; phone: 913-843-1221; fax: 913-843-1274; URL: www.benthos.org, Abstracts available. No charge. Poster Paper No. 423 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Validation and upgrade of a QSAR study of the toxicity of amines to freshwater fish AN - 41592556; 2465075 AU - Newsome, L D AU - Johnson, DE AU - Nabholz, JU Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41592556?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Validation+and+upgrade+of+a+QSAR+study+of+the+toxicity+of+amines+to+freshwater+fish&rft.au=Newsome%2C+L+D%3BJohnson%2C+DE%3BNabholz%2C+JU&rft.aulast=Newsome&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASTM, 1916 Race Street, Philadelphia, PA 19103, USA, Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Review of the status of marine plant toxicity testing AN - 41592409; 2464964 AU - Thursby, G B AU - Anderson, B AU - Walsh, G AU - Steele, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41592409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Review+of+the+status+of+marine+plant+toxicity+testing&rft.au=Thursby%2C+G+B%3BAnderson%2C+B%3BWalsh%2C+G%3BSteele%2C+R&rft.aulast=Thursby&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASTM, 1916 Race Street, Philadelphia, PA 19103, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of Aroclor+ 1254 pre-treatment on GABA induced chloride influx cultured cortical neurons: A fluorescence imaging study AN - 41591658; 3460125 AU - Inglefield, J R AU - Shafer, T J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41591658?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effects+of+Aroclor%2B+1254+pre-treatment+on+GABA+induced+chloride+influx+cultured+cortical+neurons%3A+A+fluorescence+imaging+study&rft.au=Inglefield%2C+J+R%3BShafer%2C+T+J&rft.aulast=Inglefield&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Poster Paper No. 1357 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Quantitative risk assessments: The reference dose (RFD) and research to improve this model including the use of average uncertainty factors AN - 41589175; 2434640 AU - Dourson, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41589175?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Automated+respiration+method+for+assessing+the+toxicity+of+zinc+on+soil+microorganisms&rft.au=Hendricks%2C+C+W%3BRossignol%2C+A%3BBoening%2C+D+W&rft.aulast=Hendricks&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th Street, NW, Suite 1100, Washington, DC 20005, USA. Telephone: (202) 371-1393. Fax: (202) 371-1090., Paper No. 1247 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Characterization of hydroquinone and catechol formation using hepatic microsomes from three species of fish AN - 41587196; 3460002 AU - Kolanczyk, R C AU - Solem, LE AU - Schmieder, P K AU - McKim, J M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41587196?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Characterization+of+hydroquinone+and+catechol+formation+using+hepatic+microsomes+from+three+species+of+fish&rft.au=Kolanczyk%2C+R+C%3BSolem%2C+LE%3BSchmieder%2C+P+K%3BMcKim%2C+J+M&rft.aulast=Kolanczyk&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Poster Paper No. 1234 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Catalog of neurotoxic substances: A menu driven database for computer access of neurotoxic data AN - 41585243; 2433494 AU - Gage, MI AU - Dimsdale, T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41585243?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Catalog+of+neurotoxic+substances%3A+A+menu+driven+database+for+computer+access+of+neurotoxic+data&rft.au=Gage%2C+MI%3BDimsdale%2C+T&rft.aulast=Gage&rft.aufirst=MI&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th Street, NW, Suite 1100, Washington, DC 20005, USA. Telephone: (202) 371-1393. Fax: (202) 371-1090., Poster Paper No. 924 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effect of lung structure and dimensions on the distribution of absorbed reactive gases in the lung AN - 41582136; 2431421 AU - Overton, J H AU - Graham, R C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41582136?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effect+of+lung+structure+and+dimensions+on+the+distribution+of+absorbed+reactive+gases+in+the+lung&rft.au=Dickerson%2C+W+D&rft.aulast=Dickerson&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th Street, NW, Suite 1100, Washington, DC 20005, USA. Telephone: (202) 371-1393. Fax: (202) 371-1090., Poster Paper No. 341 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Feasibility of route-to-route extrapolation of cancer potency factors for aniline dioxane, isophorone and benzyl chloride AN - 41581760; 2433441 AU - Ginsberg, G L AU - Hauchman, F S AU - Vetrano, K M AU - Bement, CL AU - Koch, W H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41581760?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Feasibility+of+route-to-route+extrapolation+of+cancer+potency+factors+for+aniline+dioxane%2C+isophorone+and+benzyl+chloride&rft.au=Ginsberg%2C+G+L%3BHauchman%2C+F+S%3BVetrano%2C+K+M%3BBement%2C+CL%3BKoch%2C+W+H&rft.aulast=Ginsberg&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th Street, NW, Suite 1100, Washington, DC 20005, USA. Telephone: (202) 371-1393. Fax: (202) 371-1090., Poster Paper No. 903 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - EPA report on issues affecting the gas industry AN - 41580272; 3457699 AU - Smith, C W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41580272?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=EPA+report+on+issues+affecting+the+gas+industry&rft.au=Smith%2C+C+W&rft.aulast=Smith&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Institute for Gas Technology (IGT), 1700 S. Mount Prospect Road, Des Plaines, IL 60018-1804, USA; phone: 847-768-0842; fax: 847-768-0783; email: robertsr@igt.org; URL: www.igt.org, Contact IGT for availability. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Innovative monitoring technologies for wellhead protection AN - 41578673; 2486904 AU - Eschner, E AU - Schroedl AU - Moore, BA AU - Gardner, S P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41578673?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Innovative+monitoring+technologies+for+wellhead+protection&rft.au=Eschner%2C+E%3BSchroedl%3BMoore%2C+BA%3BGardner%2C+S+P&rft.aulast=Eschner&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: NWWA, 6375 Riverside Drive, Dublin, OH 43017, USA. Telephone: (614) 761-1711. Fax: (614) 761-3446., Paper No. A1 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Age-related changes in benzene disposition in C57BL/6N mice described by a physiologically based pharmacokinetic model AN - 41574082; 2432597 AU - Medinsky, MA AU - McMahon, T F AU - Birnbaum, L S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41574082?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Age-related+changes+in+benzene+disposition+in+C57BL%2F6N+mice+described+by+a+physiologically+based+pharmacokinetic+model&rft.au=Medinsky%2C+MA%3BMcMahon%2C+T+F%3BBirnbaum%2C+L+S&rft.aulast=Medinsky&rft.aufirst=MA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th Street, NW, Suite 1100, Washington, DC 20005, USA. Telephone: (202) 371-1393. Fax: (202) 371-1090., Poster Paper No. 661 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Immunologic and neurologic effects of NiCl super(2) exposure in mice AN - 41569573; 2432894 AU - Luebke, R W AU - Gordon, C J AU - Riddle, M M AU - Fogelson, L AU - Copeland, C P AU - Andrews, D L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41569573?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Immunologic+and+neurologic+effects+of+NiCl+super%282%29+exposure+in+mice&rft.au=Luebke%2C+R+W%3BGordon%2C+C+J%3BRiddle%2C+M+M%3BFogelson%2C+L%3BCopeland%2C+C+P%3BAndrews%2C+D+L&rft.aulast=Luebke&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th Street, NW, Suite 1100, Washington, DC 20005, USA. Telephone: (202) 371-1393. Fax: (202) 371-1090., Poster Paper No. 759 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Acute pulmonary absorption of 2,3,7,8-tetrabromodibenzo-p-dioxin (TBDD) in rats AN - 41567241; 2433898 AU - Diliberto, J J AU - Jackson, JA AU - Birnbaum, L S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41567241?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Acute+pulmonary+absorption+of+2%2C3%2C7%2C8-tetrabromodibenzo-p-dioxin+%28TBDD%29+in+rats&rft.au=Diliberto%2C+J+J%3BJackson%2C+JA%3BBirnbaum%2C+L+S&rft.aulast=Diliberto&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th Street, NW, Suite 1100, Washington, DC 20005, USA. Telephone: (202) 371-1393. Fax: (202) 371-1090., Poster Paper No. 1045 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Evaluation of the performance of laboratories providing aquatic toxicity data for the discharge permits program AN - 41563817; 2465230 AU - Weber, C I AU - Britton, P AU - Lazorchak, J M AU - McMullen, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41563817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Transborder+hazardous+waste+data+electronic+data+interchange+%28EDI%29+project%3A+The+opportunities+and+challenges+of+moving+data+electronically+through+EDI&rft.au=Leopard%2C+M+G&rft.aulast=Leopard&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASTM, 1916 Race Street, Philadelphia, PA 19103, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Atmospheric formaldehyde and terrestrial plant exposure AN - 41563638; 2464996 AU - Barker, J AU - Tingey, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41563638?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Atmospheric+formaldehyde+and+terrestrial+plant+exposure&rft.au=Barker%2C+J%3BTingey%2C+D&rft.aulast=Barker&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASTM, 1916 Race Street, Philadelphia, PA 19103, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Developmental toxicity of tobacco smoke AN - 41563100; 3459549 AU - Rogers, J M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41563100?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Developmental+toxicity+of+tobacco+smoke&rft.au=Rogers%2C+J+M&rft.aulast=Rogers&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Paper No. 781 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - U.S. Environmental Agency Promotes national data sharing and technology transfer through grids AN - 41562170; 2399084 AU - Pease, R J AU - Paquette, MA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41562170?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=U.S.+Environmental+Agency+Promotes+national+data+sharing+and+technology+transfer+through+grids&rft.au=Pease%2C+R+J%3BPaquette%2C+MA&rft.aulast=Pease&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: AMS, 1755 Massachusetts Avenue, NW, Suite 700, Washington, DC 20036, USA, Paper No. 1.7 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Assessment of genetically engineered microorganisms under TSCA: Considerations prior to use in fermentors or small-scale field release AN - 41562031; 2465010 AU - Sayre, P AU - Rough, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41562031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Assessment+of+genetically+engineered+microorganisms+under+TSCA%3A+Considerations+prior+to+use+in+fermentors+or+small-scale+field+release&rft.au=Sayre%2C+P%3BRough%2C+J&rft.aulast=Sayre&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASTM, 1916 Race Street, Philadelphia, PA 19103, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Developmental lead (Pb) exposure falls to disrupt spatial learning in the Morris water maze AN - 41561614; 3460466 AU - Samsam, TE AU - Gilbert, ME Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41561614?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Developmental+lead+%28Pb%29+exposure+falls+to+disrupt+spatial+learning+in+the+Morris+water+maze&rft.au=Samsam%2C+TE%3BGilbert%2C+ME&rft.aulast=Samsam&rft.aufirst=TE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Poster Paper No. 1698 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Integrated chemical and biological monitoring of Sun Creek, McPherson County, Kansas, U.S.A AN - 41561576; 2388931 AU - Crisp, N H AU - Ferrington, L C AU - Cowles, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41561576?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Integrated+chemical+and+biological+monitoring+of+Sun+Creek%2C+McPherson+County%2C+Kansas%2C+U.S.A&rft.au=Crisp%2C+N+H%3BFerrington%2C+L+C%3BCowles%2C+L&rft.aulast=Crisp&rft.aufirst=N&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Water Resources Association, 5410 Grosvenor Lane, Suite 220, Bethesda, MD 20814-2192, USA. Telephone: (301) 493-8600. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Blood proteins and DNA adducts of atrazine in Peromyscus leucopus as biological indicators of triazine herbicide exposures in the environment AN - 41559724; 3459655 AU - Reddy, T V AU - Wang, H AU - Wiechman, B AU - Daniel, F B AU - Toth, G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41559724?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Blood+proteins+and+DNA+adducts+of+atrazine+in+Peromyscus+leucopus+as+biological+indicators+of+triazine+herbicide+exposures+in+the+environment&rft.au=Reddy%2C+T+V%3BWang%2C+H%3BWiechman%2C+B%3BDaniel%2C+F+B%3BToth%2C+G&rft.aulast=Reddy&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Poster Paper No. 887 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - EPA radiation regulations in the new millennium AN - 41558428; 3464844 AU - Page, S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3500:Clinical Medicine KW - U 4500:Experimental Medicine UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41558428?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=EPA+radiation+regulations+in+the+new+millennium&rft.au=Page%2C+S&rft.aulast=Page&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Lippincott Williams and Wilkins, 351 West Camden Street, Baltimore, MD 21201, USA; phone: 800-638-3030; fax: 301-824-7390; URL: www.lww.com, Abstracts available. Price $73. Paper No. MAM-A.6 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Non-dietary exposures AN - 41558396; 3446942 AU - Evans, J J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41558396?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Non-dietary+exposures&rft.au=Evans%2C+J+J&rft.aulast=Evans&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: IBC UK, Gilmoora House, 57-61 Mortimer Street, London W1N 8JX, UK; phone: 44 0 171 636 6858; fax: 44 0 171 453 5496; email: cust.serv@ibcuk.co.uk; URL: www.ibc-uk.com, Abstracts available. Contact IBC for price. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Trichloroethylene health risk assessment: Using mechanistic information to improve dose-response assessment AN - 41558145; 3459155 AU - Cogliano, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41558145?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Trichloroethylene+health+risk+assessment%3A+Using+mechanistic+information+to+improve+dose-response+assessment&rft.au=Cogliano%2C+J&rft.aulast=Cogliano&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Poster Paper No. 387 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Comparison of ozone (O sub(3)) sensitivity in male and female Fischer 344 (F) and Sprague-Dawley (SD) rats AN - 41557151; 2431794 AU - Slade, R AU - Crissman, K M AU - Norwood, J AU - Hatch, GE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41557151?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Sensitivity+of+the+EPA+regional+oxidant+model+to+biogenic+hydrocarbon+emissions&rft.au=Roselle%2C+S+J%3BSchere%2C+K+L&rft.aulast=Roselle&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th Street, NW, Suite 1100, Washington, DC 20005, USA. Telephone: (202) 371-1393. Fax: (202) 371-1090., Poster Paper No. 443 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Cancer risk assessment of benzene AN - 41556685; 3460636 AU - Bayliss, D AU - Sonawane, B AU - Valcovic, L AU - Chen, C AU - Kimmel, C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41556685?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Cancer+risk+assessment+of+benzene&rft.au=Bayliss%2C+D%3BSonawane%2C+B%3BValcovic%2C+L%3BChen%2C+C%3BKimmel%2C+C&rft.aulast=Bayliss&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Poster Paper No. 1868 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Natural attenuation as an acceptable remedial alternative for groundwater AN - 41556111; 3428897 AU - Wischkaemper, K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41556111?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Natural+attenuation+as+an+acceptable+remedial+alternative+for+groundwater&rft.au=Wischkaemper%2C+K&rft.aulast=Wischkaemper&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: IBC USA, 225 Turnpike Road, Southborough, MA 01772-1749, USA; phone: (508) 481-6400; fax: (508) 481-7911; email: reg@ibcusa.com; URL: www.ibcusa.com/conf/attenuation, Abstracts available. 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N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - California public health goals for 1,2-dichloroethane, 1,1-dichloroethylene, hexachlorocyclopentadiene, toluene, 1,2,4-trichlorobenzene and trichloroethylene AN - 41551178; 3460372 AU - Ting, D AU - Brown, J AU - Parker, T AU - Polakoff, J AU - Rice, D AU - Fan, A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41551178?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=California+public+health+goals+for+1%2C2-dichloroethane%2C+1%2C1-dichloroethylene%2C+hexachlorocyclopentadiene%2C+toluene%2C+1%2C2%2C4-trichlorobenzene+and+trichloroethylene&rft.au=Ting%2C+D%3BBrown%2C+J%3BParker%2C+T%3BPolakoff%2C+J%3BRice%2C+D%3BFan%2C+A&rft.aulast=Ting&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, USA, Abstracts available. Price $50. Poster Paper No. 1604 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Community responds to mercury contamination - community relations in emergency response AN - 41541600; 2416911 AU - Croce LaFaire, MA AU - Noller, K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41541600?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Community+responds+to+mercury+contamination+-+community+relations+in+emergency+response&rft.au=Croce+LaFaire%2C+MA%3BNoller%2C+K&rft.aulast=Croce+LaFaire&rft.aufirst=MA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI-R&D '91, 9300 Columbia Boulevard, Silver Spring, MD 20910-1702, USA. Telephone: (301) 587-9390. Fax: (301) 589-0182. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Impacts of regional control strategies on ozone in the northeastern United States AN - 41511405; 2293531 AU - Possiel, N C AU - Doll, D C AU - Baugues, KA AU - Baldridge, E W AU - Wayland, R A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41511405?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Impacts+of+regional+control+strategies+on+ozone+in+the+northeastern+United+States&rft.au=Possiel%2C+N+C%3BDoll%2C+D+C%3BBaugues%2C+KA%3BBaldridge%2C+E+W%3BWayland%2C+R+A&rft.aulast=Possiel&rft.aufirst=N&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, P.O. Box 2861, Pittsburgh, PA 15230, USA. Telephone: (412) 232-3444., Paper No. 90-93.3 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Physical and morphological measures of waste solidification effectiveness AN - 41506441; 2289035 AU - Grube, W E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41506441?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Implementation+of+the+field+demonstration+for+the+bioremediation+of+the+Alaskan+oil+spill&rft.au=Kremer%2C+F%3BHeggem%2C+D%3BMiller%2C+D%3BBaker%2C+J&rft.aulast=Kremer&rft.aufirst=F&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, P.O. Box 2861, Pittsburgh, PA 15230, USA. Telephone: (412) 232-3444., Paper No. 90-14.3 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Status of US EPA's sludge incineration regulations AN - 41504993; 2293413 AU - Crumpler, E P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41504993?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Status+of+US+EPA%27s+sludge+incineration+regulations&rft.au=Crumpler%2C+E+P&rft.aulast=Crumpler&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, P.O. Box 2861, Pittsburgh, PA 15230, USA. Telephone: (412) 232-3444., Paper No. 90-26.8 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Radon diagnostics for schools AN - 41503247; 2293499 AU - Leovic, K W AU - Harris, D B AU - Craig, AB Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41503247?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Radon+diagnostics+for+schools&rft.au=Leovic%2C+K+W%3BHarris%2C+D+B%3BCraig%2C+AB&rft.aulast=Leovic&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, P.O. Box 2861, Pittsburgh, PA 15230, USA. Telephone: (412) 232-3444., Paper No. 90-89.3 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - EPA's quality assurance for the toxic release inventory AN - 41500749; 2288963 AU - Franklin, KA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41500749?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=EPA%27s+quality+assurance+for+the+toxic+release+inventory&rft.au=Franklin%2C+KA&rft.aulast=Franklin&rft.aufirst=KA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, P.O. Box 2861, Pittsburgh, PA 15230, USA. Telephone: (412) 232-3444., Paper No. 90-158.5 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Exposures, risks, and sources associated with air toxics: Results from recent EPA studies of personal exposure to volatile organic chemicals AN - 41498479; 2295389 AU - Wallace, LA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41498479?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Exposures%2C+risks%2C+and+sources+associated+with+air+toxics%3A+Results+from+recent+EPA+studies+of+personal+exposure+to+volatile+organic+chemicals&rft.au=Wallace%2C+LA&rft.aulast=Wallace&rft.aufirst=LA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, P.O. Box 2861, Pittsburgh, PA 15230, USA. Telephone: (412) 232-3444., Paper No. 90-149.7 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Role of product design in solid waste minimization AN - 41498408; 2294425 AU - Flynn, M P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41498408?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Role+of+product+design+in+solid+waste+minimization&rft.au=Flynn%2C+M+P&rft.aulast=Flynn&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, P.O. Box 2861, Pittsburgh, PA 15230, USA. Telephone: (412) 232-3444. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - EPA perspective on biodiversity: Policy and regulatory issues AN - 41497007; 2323661 AU - Titus, T R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41497007?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=EPA+perspective+on+biodiversity%3A+Policy+and+regulatory+issues&rft.au=Titus%2C+T+R&rft.aulast=Titus&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Fisheries Society, 5410 Grosvenor Lane, Bethesda, MD 20814, USA. Telephone: (301) 897-8616., Paper No. 19.2 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Biological markers of human exposure AN - 41494976; 2295399 AU - Nauman, CH AU - Blancato, J N Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41494976?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Biological+markers+of+human+exposure&rft.au=Nauman%2C+CH%3BBlancato%2C+J+N&rft.aulast=Nauman&rft.aufirst=CH&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, P.O. Box 2861, Pittsburgh, PA 15230, USA. Telephone: (412) 232-3444., Paper No. 90-159.8 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - How to conserve water and meet other service objectives, including environmental compliance AN - 41493838; 2316911 AU - Dyballa, C AU - Hogye, S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41493838?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=How+to+conserve+water+and+meet+other+service+objectives%2C+including+environmental+compliance&rft.au=Dyballa%2C+C%3BHogye%2C+S&rft.aulast=Dyballa&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: CONSERV 90, NWWA, 6375 Riverside Dr., Dublin, OH 43017, USA. Telephone: (614) 761-1711. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Health impacts of urban air pollution in Denmark AN - 41488702; 3408182 AU - Larsen, P B AU - Jensen, S S AU - Fenger, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41488702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Health+impacts+of+urban+air+pollution+in+Denmark&rft.au=Larsen%2C+P+B%3BJensen%2C+S+S%3BFenger%2C+J&rft.aulast=Larsen&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Ecomed Publishers, Rudolf Diesel Strasse 3, D-86 899 Landsberg, Germany; email: a.heinrich@ecomed.de; URL: www.ecomed.de/naturw/bereiche/titel/espr/welcome.html, Abstracts available. Contact Ecomed for price. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - The Cure: Information transfer in risk assessment AN - 41479584; 2289039 AU - Reisman, D J AU - Francis, M W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3500:CLINICAL MEDICINE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41479584?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=The+Cure%3A+Information+transfer+in+risk+assessment&rft.au=Reisman%2C+D+J%3BFrancis%2C+M+W&rft.aulast=Reisman&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Industrial Hygiene Association, 345 White Pond Drive, P.O. Box 8390, Akron, OH 44320, USA, Abstracts, $35.00 Paper No. 32 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - SAO sub(2) indicates response to methacholine aerosol in awake guinea pigs AN - 41473191; 2188330 AU - Wiester, MJ AU - Tepper, J S AU - Doerfler, D L AU - Costa, D L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41473191?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=SAO+sub%282%29+indicates+response+to+methacholine+aerosol+in+awake+guinea+pigs&rft.au=Wiester%2C+MJ%3BTepper%2C+J+S%3BDoerfler%2C+D+L%3BCosta%2C+D+L&rft.aulast=Wiester&rft.aufirst=MJ&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th St., NW, Ste. 1100, Washington, DC 20005, USA. Telephone: 202-293-5935. Fax: 202-371-1090., Poster Paper No. 825 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of selected anti-tumor promoting chemicals on gap-junctional intercellular communication in V79 cells AN - 41472548; 2184996 AU - Mills, L J AU - Nelson, S M AU - Malcolm, A R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41472548?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effects+of+selected+anti-tumor+promoting+chemicals+on+gap-junctional+intercellular+communication+in+V79+cells&rft.au=Mills%2C+L+J%3BNelson%2C+S+M%3BMalcolm%2C+A+R&rft.aulast=Mills&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th St., NW, Ste. 1100, Washington, DC 20005, USA. Telephone: 202-293-5935. Fax: 202-371-1090., Poster Paper No. 299 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Whole ovary culture as an in vitro assessment of in vivo toxicant exposure affecting ovarian steroidogenesis AN - 41467710; 2188382 AU - Berman, E AU - Laskey, J W AU - Carter, H AU - Ferrell, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41467710?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Whole+ovary+culture+as+an+in+vitro+assessment+of+in+vivo+toxicant+exposure+affecting+ovarian+steroidogenesis&rft.au=Berman%2C+E%3BLaskey%2C+J+W%3BCarter%2C+H%3BFerrell%2C+J&rft.aulast=Berman&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th St., NW, Ste. 1100, Washington, DC 20005, USA. Telephone: 202-293-5935. Fax: 202-371-1090., Poster Paper No. 840 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Reduced visual contrast sensitivity in rats after repeated exposure to carbon disulfide (CS2) AN - 41464394; 2190534 AU - Boyes, W K AU - Bercegeay AU - Herr, D W AU - Dyer, R S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41464394?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Reduced+visual+contrast+sensitivity+in+rats+after+repeated+exposure+to+carbon+disulfide+%28CS2%29&rft.au=Boyes%2C+W+K%3BBercegeay%3BHerr%2C+D+W%3BDyer%2C+R+S&rft.aulast=Boyes&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th St., NW, Ste. 1100, Washington, DC 20005, USA. Telephone: 202-293-5935. Fax: 202-371-1090., Poster Paper No. 1229 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - DNA strand breaks in laboratory and field exposed marine bivalves AN - 41463240; 2189045 AU - Nacci, D AU - Nelson, S M AU - Nelson, W G AU - Jackim, E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41463240?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=DNA+strand+breaks+in+laboratory+and+field+exposed+marine+bivalves&rft.au=Nacci%2C+D%3BNelson%2C+S+M%3BNelson%2C+W+G%3BJackim%2C+E&rft.aulast=Nacci&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th St., NW, Ste. 1100, Washington, DC 20005, USA. Telephone: 202-293-5935. Fax: 202-371-1090., Poster Paper No. 991 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Implementation of the field demonstration for the bioremediation of the Alaskan oil spill AN - 41459638; 2295082 AU - Kremer, F AU - Heggem, D AU - Miller, D AU - Baker, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41459638?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Assessment+of+genetically+engineered+microorganisms+under+TSCA%3A+Considerations+prior+to+use+in+fermentors+or+small-scale+field+release&rft.au=Sayre%2C+P%3BRough%2C+J&rft.aulast=Sayre&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, P.O. Box 2861, Pittsburgh, PA 15230, USA. Telephone: (412) 232-3444., Paper No. 90-22.1 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Sensitivity of the EPA regional oxidant model to biogenic hydrocarbon emissions AN - 41459211; 2295002 AU - Roselle, S J AU - Schere, K L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41459211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Sensitivity+of+the+EPA+regional+oxidant+model+to+biogenic+hydrocarbon+emissions&rft.au=Roselle%2C+S+J%3BSchere%2C+K+L&rft.aulast=Roselle&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, P.O. Box 2861, Pittsburgh, PA 15230, USA. Telephone: (412) 232-3444., Paper No. 90-94.4 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Estimating childhood multi-media lead exposure: Expanded exposure/uptake/biokinetic model AN - 41456514; 2295315 AU - Cohen, J AU - Elias, R AU - Marcus, A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41456514?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Estimating+childhood+multi-media+lead+exposure%3A+Expanded+exposure%2Fuptake%2Fbiokinetic+model&rft.au=Cohen%2C+J%3BElias%2C+R%3BMarcus%2C+A&rft.aulast=Cohen&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air & Waste Management Association, P.O. Box 2861, Pittsburgh, PA 15230, USA. Telephone: (412) 232-3444., Paper No. 90-12.2 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Changes in H-ras and C-myc oncogenes in transformed rat tracheal epithelial cells are rare events AN - 41455360; 2257452 AU - Mass, MJ AU - Austin, S J AU - Beeman, D K AU - Lasley, JA AU - Schorschinsky, N S AU - Wright, P L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3500:CLINICAL MEDICINE KW - U 2000:BIOLOGY GENERAL KW - U 4500:EXPERIMENTAL MEDICINE KW - U 1500:BIOCHEMISTRY KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41455360?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Changes+in+H-ras+and+C-myc+oncogenes+in+transformed+rat+tracheal+epithelial+cells+are+rare+events&rft.au=Mass%2C+MJ%3BAustin%2C+S+J%3BBeeman%2C+D+K%3BLasley%2C+JA%3BSchorschinsky%2C+N+S%3BWright%2C+P+L&rft.aulast=Mass&rft.aufirst=MJ&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: FASEB, 9650 Rockville Pike, Bethesda, MD 20814, USA, Paper No. 5064 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Use of the new OWPE CERCLA cleanup cost database for calculating settlement risk premiums, evaluating cleanup costs, and reviewing AN - 41449908; 2171789 AU - Gillis, T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41449908?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Use+of+the+new+OWPE+CERCLA+cleanup+cost+database+for+calculating+settlement+risk+premiums%2C+evaluating+cleanup+costs%2C+and+reviewing&rft.au=Gillis%2C+T&rft.aulast=Gillis&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Hazardous Materials Control Research Institute, 9300 Columbia Boulevard, Silver Spring, MD 20910-1702. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Mixed funding of waste programs enforcement tool in Superfund settlements AN - 41446327; 2171476 AU - Swichkow, D AU - Ross, W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41446327?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Mixed+funding+of+waste+programs+enforcement+tool+in+Superfund+settlements&rft.au=Swichkow%2C+D%3BRoss%2C+W&rft.aulast=Swichkow&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Hazardous Materials Control Research Institute, 9300 Columbia Boulevard, Silver Spring, MD 20910-1702. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Development of a long-term plan for managing a contaminated groundwater basin: The San Gabriel Basin Plan AN - 41446285; 2171452 AU - Ziemba, N L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41446285?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Development+of+a+long-term+plan+for+managing+a+contaminated+groundwater+basin%3A+The+San+Gabriel+Basin+Plan&rft.au=Ziemba%2C+N+L&rft.aulast=Ziemba&rft.aufirst=N&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Hazardous Materials Control Research Institute, 9300 Columbia Boulevard, Silver Spring, MD 20910-1702. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Tools for wellhead protection: Wellhead delineation and contingency planning AN - 41445436; 2216261 AU - Oates, LE AU - Ward, W D AU - Roy, S P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41445436?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Tools+for+wellhead+protection%3A+Wellhead+delineation+and+contingency+planning&rft.au=Oates%2C+LE%3BWard%2C+W+D%3BRoy%2C+S+P&rft.aulast=Oates&rft.aufirst=LE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: National Water Well Association, 6375 Riverside Drive, Dublin, OH 43017, USA. Telephone: 614-761-1711. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of a pathogen on plant interactions: Wheat, wild oats, and wheat leaf rust AN - 41444349; 3383721 AU - Pfleeger, T G AU - Da Luz, MA AU - Mundt, C C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41444349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effects+of+a+pathogen+on+plant+interactions%3A+Wheat%2C+wild+oats%2C+and+wheat+leaf+rust&rft.au=Pfleeger%2C+T+G%3BDa+Luz%2C+MA%3BMundt%2C+C+C&rft.aulast=Pfleeger&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Ecological Society of America, Ecology Center, Utah State University, Logan, UT 84322-5205, USA; phone: (801) 797-2555; email: fwagner@cc.usu.edu; URL: http://esa.sdsc.edu/98meet.htm, Abstracts available. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Local government experience: EPA study highlights AN - 41444287; 3374122 AU - Kelsch, T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5700:Marine Science KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41444287?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Local+government+experience%3A+EPA+study+highlights&rft.au=Kelsch%2C+T&rft.aulast=Kelsch&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Terren Institute, 4 Herbert Street, Alexandria, VA 22305, USA; phone: (703) 548-5473; fax: (703) 548-6299; email: terrinst@aol.com; URL: http://www.terrene.org, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Site remediation using mobile thermal destruction at the electric utilities site in LaSalle, IL AN - 41444165; 2171634 AU - Frank, J AU - Lange, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41444165?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Site+remediation+using+mobile+thermal+destruction+at+the+electric+utilities+site+in+LaSalle%2C+IL&rft.au=Frank%2C+J%3BLange%2C+R&rft.aulast=Frank&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Hazardous Materials Control Research Institute, 9300 Columbia Boulevard, Silver Spring, MD 20910-1702. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Rat-adapted influenza virus as a host resistance model for pulmonary immunotoxicity studies AN - 41444154; 2189909 AU - Burleson, G R AU - Stutzman, J D AU - Ehrlich, J P AU - Brown, S D AU - Chambers, T M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41444154?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Rat-adapted+influenza+virus+as+a+host+resistance+model+for+pulmonary+immunotoxicity+studies&rft.au=Burleson%2C+G+R%3BStutzman%2C+J+D%3BEhrlich%2C+J+P%3BBrown%2C+S+D%3BChambers%2C+T+M&rft.aulast=Burleson&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1101 14th St., NW, Ste. 1100, Washington, DC 20005, USA. Telephone: 202-293-5935. Fax: 202-371-1090., Poster Paper No. 1148 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Use of hydraulic controls in an aquifer impacted by tidal forces AN - 41440417; 2171444 AU - Tetta, D AU - Fuentes, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41440417?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Use+of+hydraulic+controls+in+an+aquifer+impacted+by+tidal+forces&rft.au=Tetta%2C+D%3BFuentes%2C+R&rft.aulast=Tetta&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Hazardous Materials Control Research Institute, 9300 Columbia Boulevard, Silver Spring, MD 20910-1702. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Great Lakes protection strategies AN - 41437870; 3377019 AU - Gulezian, G V Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4500:Experimental Medicine UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41437870?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Great+Lakes+protection+strategies&rft.au=Gulezian%2C+G+V&rft.aulast=Gulezian&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Environmental Resource Center, 101 Center Pointe Drive, Cary, NC 27513-5706, USA; phone: (919) 469-1585; URL: http://www.ercweb.com, Abstracts and full papers available. Price $95 for CD-ROM and $125 hard copy. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Similarity between effects of chemical toxicity and hypoxia on behavioral thermoregulation in rodents AN - 41435108; 2223566 AU - Gordon, C J AU - Fogelson, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3500:CLINICAL MEDICINE KW - U 2000:BIOLOGY GENERAL KW - U 4500:EXPERIMENTAL MEDICINE KW - U 1500:BIOCHEMISTRY KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41435108?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Similarity+between+effects+of+chemical+toxicity+and+hypoxia+on+behavioral+thermoregulation+in+rodents&rft.au=Gordon%2C+C+J%3BFogelson%2C+L&rft.aulast=Gordon&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: FASEB, 9650 Rockville Pike, Bethesda, MD 20814, USA, Paper No. 68 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Spermatotoxicity of bromochloroacetic acid (BCA) in the rat after 14 daily doses AN - 41426328; 3363284 AU - Strader, L F AU - Suarez, J D AU - Roberts, N L AU - Klinefelter, G R AU - Cummings, A M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41426328?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Spermatotoxicity+of+bromochloroacetic+acid+%28BCA%29+in+the+rat+after+14+daily+doses&rft.au=Strader%2C+L+F%3BSuarez%2C+J+D%3BRoberts%2C+N+L%3BKlinefelter%2C+G+R%3BCummings%2C+A+M&rft.aulast=Strader&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 511 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Increased efflux of paclitaxel in doxorubicin-resistant NCI-H69 small cell lung cancer cell line AN - 41425770; 3363678 AU - Sharma, R AU - Awasthi, S AU - Piper, J T AU - Lin, J T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41425770?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Increased+efflux+of+paclitaxel+in+doxorubicin-resistant+NCI-H69+small+cell+lung+cancer+cell+line&rft.au=Sharma%2C+R%3BAwasthi%2C+S%3BPiper%2C+J+T%3BLin%2C+J+T&rft.aulast=Sharma&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 905 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - California public health goals for 1,2- and 1,4-dichlorobenzene, ethylbenzene, xylenes, freon+ 11, and freon+ 113 in drinking water AN - 41424955; 3363875 AU - Howd, R A AU - Faust, J AU - Lewis, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41424955?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=California+public+health+goals+for+1%2C2-+and+1%2C4-dichlorobenzene%2C+ethylbenzene%2C+xylenes%2C+freon%2B+11%2C+and+freon%2B+113+in+drinking+water&rft.au=Howd%2C+R+A%3BFaust%2C+J%3BLewis%2C+D&rft.aulast=Howd&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 1102 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effect of dose on the tissue distribution of monomethylarsonic acid in the mouse after IV administration AN - 41424715; 3363834 AU - Hughes, M F AU - Edwards, B C AU - Mitchell, C T AU - Kenyon, E M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41424715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effect+of+dose+on+the+tissue+distribution+of+monomethylarsonic+acid+in+the+mouse+after+IV+administration&rft.au=Hughes%2C+M+F%3BEdwards%2C+B+C%3BMitchell%2C+C+T%3BKenyon%2C+E+M&rft.aulast=Hughes&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 1061 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Recommended handling procedures for turbid ground water samples prior to analysis for inorganic constituents AN - 41424119; 2115781 AU - Patzke, JA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41424119?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Recommended+handling+procedures+for+turbid+ground+water+samples+prior+to+analysis+for+inorganic+constituents&rft.au=Patzke%2C+JA&rft.aulast=Patzke&rft.aufirst=JA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: NWWA, 6375 Riverside Drive, Dublin, OH 43017 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Valproic acid-induced alterations in embryonic and adult mitochondria are ameliorated by L-carnitine: Implications of a role for glutathione AN - 41423671; 3364145 AU - Andrews, JE AU - Richards, J AU - Roberts, N AU - Nichols, H AU - Kavlock, R J AU - Klinefelter, G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41423671?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Valproic+acid-induced+alterations+in+embryonic+and+adult+mitochondria+are+ameliorated+by+L-carnitine%3A+Implications+of+a+role+for+glutathione&rft.au=Andrews%2C+JE%3BRichards%2C+J%3BRoberts%2C+N%3BNichols%2C+H%3BKavlock%2C+R+J%3BKlinefelter%2C+G&rft.aulast=Andrews&rft.aufirst=JE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 1369 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Trimellitic anhydride (TMA) hypersensitivity responses of mice topically sensitized and intratracheal (IT) challenged AN - 41423554; 3364080 AU - Sailstad, D AU - Ward, M AU - Boykin, E AU - Selgrade, MJ Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41423554?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Trimellitic+anhydride+%28TMA%29+hypersensitivity+responses+of+mice+topically+sensitized+and+intratracheal+%28IT%29+challenged&rft.au=Sailstad%2C+D%3BWard%2C+M%3BBoykin%2C+E%3BSelgrade%2C+MJ&rft.aulast=Sailstad&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 1304 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Concentration-effect relationships linking inhaled trichloroethylene (TCE), estimated blood concentration and rat visual function AN - 41423036; 3363296 AU - Boyes, W K AU - Bercegeay, M AU - Evans, M V AU - Simmons, JE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41423036?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Concentration-effect+relationships+linking+inhaled+trichloroethylene+%28TCE%29%2C+estimated+blood+concentration+and+rat+visual+function&rft.au=Boyes%2C+W+K%3BBercegeay%2C+M%3BEvans%2C+M+V%3BSimmons%2C+JE&rft.aulast=Carnes&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 522 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Mechanisms of arsenic induced cancer: A role for hypermethylation AN - 41421520; 3364515 AU - Mass, MJ AU - Waalkes, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41421520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Mechanisms+of+arsenic+induced+cancer%3A+A+role+for+hypermethylation&rft.au=Mass%2C+MJ%3BWaalkes%2C+M&rft.aulast=Mass&rft.aufirst=MJ&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Arsenic carcinogenesis: Dimethylarsinic acid causes rat pulmonary DNA damage AN - 41420942; 3364362 AU - Brown, J L AU - Kitchin, T AU - Thomas, D J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41420942?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Legislative+perspectives+on+regulation+of+biotechnology+products&rft.au=Levin%2C+MA&rft.aulast=Levin&rft.aufirst=MA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 1586 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Health risk assessment of malathion coproducts in malathion-bait used for agricultural pest eradication in urban areas AN - 41419716; 3362994 AU - DiBartolomeis, M AU - Rice, D AU - Fan, A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41419716?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Health+risk+assessment+of+malathion+coproducts+in+malathion-bait+used+for+agricultural+pest+eradication+in+urban+areas&rft.au=DiBartolomeis%2C+M%3BRice%2C+D%3BFan%2C+A&rft.aulast=DiBartolomeis&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 221 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - ARNT deficient mice exhibit abnormal placental differentiation AN - 41418178; 3363374 AU - Abbott, B D AU - Kozak, K R AU - Hankinson, O Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41418178?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Characterization+of+riparian+vegetation+in+off-channel+habitats+and+relationships+with+annual+flooding+patterns%2C+upper+main+stem%2C+Willamette+River%2C+Oregon%2C+USA&rft.au=Cline%2C+S%3BMcAllister%2C+L%3BCarson%2C+W+W%3BHaggerty%2C+P+K&rft.aulast=Cline&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 601 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - EPA concepts and approach to risk management AN - 41417849; 3376966 AU - Smith, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4500:Experimental Medicine UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41417849?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=EPA+concepts+and+approach+to+risk+management&rft.au=Smith%2C+R&rft.aulast=Smith&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Environmental Resource Center, 101 Center Pointe Drive, Cary, NC 27513-5706, USA; phone: (919) 469-1585; URL: http://www.ercweb.com, Abstracts and full papers available. Price $95 for CD-ROM and $125 hard copy. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Enzymatically based mathematical model of 1,2-dimethylhydrazine-induced DNA damage in rat liver AN - 41415914; 3363191 AU - George, M AU - Kitchin, K T AU - Brown, J L AU - Thomas, D J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41415914?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=EPA+concepts+and+approach+to+risk+management&rft.au=Smith%2C+R&rft.aulast=Smith&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 418 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Acute chlorpyrifos impairs sustained attention in rats AN - 41415866; 3363398 AU - Bushnell, P J AU - Padnos, B K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41415866?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Acute+chlorpyrifos+impairs+sustained+attention+in+rats&rft.au=Bushnell%2C+P+J%3BPadnos%2C+B+K&rft.aulast=Bushnell&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 625 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Application of sensitivity analysis (SA) to the planning of in vitro arsenic pharmacokinetic (PK) studies AN - 41414957; 3363444 AU - Kenyon, E M AU - Fea, M AU - Evans, M V Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41414957?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Multi-laboratory+intercomparison+study+of+elemental+analyses+by+ICP+in+hazardous+waste+samples&rft.au=Ward%2C+G+K&rft.aulast=Ward&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 671 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hazard identification in the face of limited mechanistic data: 5-Chloro-O-toluidine,2,4,5-trimethylaniline, and quinoline AN - 41413859; 3363063 AU - Sandy AU - Painter, P A AU - Salmon, A G AU - Rabovsky, J AU - Zeise, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41413859?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hazard+identification+in+the+face+of+limited+mechanistic+data%3A+5-Chloro-O-toluidine%2C2%2C4%2C5-trimethylaniline%2C+and+quinoline&rft.au=Sandy%3BPainter%2C+P+A%3BSalmon%2C+A+G%3BRabovsky%2C+J%3BZeise%2C+L&rft.aulast=Sandy&rft.aufirst=&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 290 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effect of ethylene glycol (EG) metabolites on enzymatic activities in tissue tomogenates AN - 41411151; 2081874 AU - Bercz, J P AU - Tsuei, J AU - Tsuei, S AU - Jones, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41411151?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effect+of+ethylene+glycol+%28EG%29+metabolites+on+enzymatic+activities+in+tissue+tomogenates&rft.au=Bercz%2C+J+P%3BTsuei%2C+J%3BTsuei%2C+S%3BJones%2C+L&rft.aulast=Bercz&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1133 Fifteenth Street, NW, Suite 1000, Washington, DC 20005 (USA), Price: $ 20.00 + $ 3.00 for postage and handling Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Temperature regulation in laboratory mammals following acute toxic insult AN - 41410965; 2082375 AU - Gordon, C J AU - Watkinson, W P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41410965?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Temperature+regulation+in+laboratory+mammals+following+acute+toxic+insult&rft.au=Gordon%2C+C+J%3BWatkinson%2C+W+P&rft.aulast=Gordon&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1133 Fifteenth Street, NW, Suite 1000, Washington, DC 20005 (USA), Price: $ 20.00 + $ 3.00 for postage and handling Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Development of wellhead protection in Ohio AN - 41410664; 2216452 AU - Leavell, D N Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41410664?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Development+of+wellhead+protection+in+Ohio&rft.au=Leavell%2C+D+N&rft.aulast=Leavell&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: National Water Well Association, 6375 Riverside Drive, Dublin, OH 43017, USA. Telephone: 614-761-1711. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - National evaluation of the leaching potential of aldicarb AN - 41410177; 2216100 AU - Lorber, M N AU - Cohen, S Z AU - Noren, SE AU - DeBuchananne, G D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41410177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=National+evaluation+of+the+leaching+potential+of+aldicarb&rft.au=Lorber%2C+M+N%3BCohen%2C+S+Z%3BNoren%2C+SE%3BDeBuchananne%2C+G+D&rft.aulast=Lorber&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: National Water Well Association, 6375 Riverside Drive, Dublin, OH 43017, USA. Telephone: 614-761-1711. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Modulating effect of body temperature on toxic response produced by nickel chloride in rats AN - 41410154; 2107266 AU - Watkinson, W P AU - Gordon, C J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4500:EXPERIMENTAL MEDICINE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41410154?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Modulating+effect+of+body+temperature+on+toxic+response+produced+by+nickel+chloride+in+rats&rft.au=Watkinson%2C+W+P%3BGordon%2C+C+J&rft.aulast=Watkinson&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: FASEB, 9650 Rockville Pike, Bethesda, MD 20814 (USA). Telephone: (301) 530-7020, Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Developmental effects of nickel chloride in drinking water AN - 41410143; 2082915 AU - George, EL AU - Stober, JA AU - Kimmel, G L AU - Smith, M K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41410143?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Developmental+effects+of+nickel+chloride+in+drinking+water&rft.au=George%2C+EL%3BStober%2C+JA%3BKimmel%2C+G+L%3BSmith%2C+M+K&rft.aulast=George&rft.aufirst=EL&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1133 Fifteenth Street, NW, Suite 1000, Washington, DC 20005 (USA), Price: $ 20.00 + $ 3.00 for postage and handling Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Evaluation of the host response to T. spiralis infection in cyclophosphamide-treated rodents AN - 41407985; 2080243 AU - Luebke, R W AU - Copeland, C B AU - Riddle, M M AU - Rogers, R R AU - Smialowicz, R J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41407985?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Evaluation+of+the+host+response+to+T.+spiralis+infection+in+cyclophosphamide-treated+rodents&rft.au=Luebke%2C+R+W%3BCopeland%2C+C+B%3BRiddle%2C+M+M%3BRogers%2C+R+R%3BSmialowicz%2C+R+J&rft.aulast=Luebke&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1133 Fifteenth Street, NW, Suite 1000, Washington, DC 20005 (USA), Price: $ 20.00 + $ 3.00 for postage and handling Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Characterization of immune alterations resulting from acute exposure of rats to tributylin oxide AN - 41407476; 2080219 AU - Smialowicz, R J AU - Riddle, M M AU - Rogers, R R AU - Luebke, R W AU - Copeland, C B AU - Ernst, G G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41407476?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Characterization+of+immune+alterations+resulting+from+acute+exposure+of+rats+to+tributylin+oxide&rft.au=Smialowicz%2C+R+J%3BRiddle%2C+M+M%3BRogers%2C+R+R%3BLuebke%2C+R+W%3BCopeland%2C+C+B%3BErnst%2C+G+G&rft.aulast=Smialowicz&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1133 Fifteenth Street, NW, Suite 1000, Washington, DC 20005 (USA), Price: $ 20.00 + $ 3.00 for postage and handling Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - FQPA policy and the EPA AN - 41395709; 3363617 AU - Fenner-Crisp, P A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41395709?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=FQPA+policy+and+the+EPA&rft.au=Fenner-Crisp%2C+P+A&rft.aulast=Fenner-Crisp&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Some statistical properties of the A/D ratio AN - 41395470; 2082729 AU - Setzer, R W AU - Rogers, J M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41395470?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Some+statistical+properties+of+the+A%2FD+ratio&rft.au=Setzer%2C+R+W%3BRogers%2C+J+M&rft.aulast=Setzer&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1133 Fifteenth Street, NW, Suite 1000, Washington, DC 20005 (USA), Price: $ 20.00 + $ 3.00 for postage and handling Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Recent research developments and their effect on the risk assessment for radon and its progeny AN - 41394206; 2103915 AU - Cothern, C R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5000:GENERAL ENGINEERING AND TECHNOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41394206?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Recent+research+developments+and+their+effect+on+the+risk+assessment+for+radon+and+its+progeny&rft.au=Cothern%2C+C+R&rft.aulast=Cothern&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ANS, Publications Department, 555 North Kensington Avenue, La Grange Park, IL 60525 (USA). Telephone: (312) 352-6611. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Provisional health and consumer acceptability advisory for methyl-t-butyl ether (MTBE) AN - 41393681; 3363896 AU - Du, J T AU - Abernathy, C O AU - Donohue, J AU - Mahfouz, A AU - Khanna, K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41393681?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Provisional+health+and+consumer+acceptability+advisory+for+methyl-t-butyl+ether+%28MTBE%29&rft.au=Du%2C+J+T%3BAbernathy%2C+C+O%3BDonohue%2C+J%3BMahfouz%2C+A%3BKhanna%2C+K&rft.aulast=Du&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 1123 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Variation in ethanol toxicity in embryos of the grass shrimp Palaemonetes pugio AN - 41388528; 3362170 AU - Reinsel, KA AU - Rayburn, J R AU - Glas, P S AU - Fisher, W S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41388528?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Variation+in+ethanol+toxicity+in+embryos+of+the+grass+shrimp+Palaemonetes+pugio&rft.au=Reinsel%2C+KA%3BRayburn%2C+J+R%3BGlas%2C+P+S%3BFisher%2C+W+S&rft.aulast=Reinsel&rft.aufirst=KA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SICB, 401 North Michigan Avenue, Chicago, IL 60611-4267, USA, Abstracts available. Price $45 (USA),$47 (Canada),$50 other countries. Paper No. 161 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - LC/ESI/MS and MS/MS techniques for the characterization of GSH conjugates of reactive quinones AN - 41385037; 3364134 AU - Serrano, J AU - Hammermeister, DE AU - Schmieder, P K AU - Kuehl, D W AU - Nichols, J W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41385037?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=LC%2FESI%2FMS+and+MS%2FMS+techniques+for+the+characterization+of+GSH+conjugates+of+reactive+quinones&rft.au=Serrano%2C+J%3BHammermeister%2C+DE%3BSchmieder%2C+P+K%3BKuehl%2C+D+W%3BNichols%2C+J+W&rft.aulast=Serrano&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 1358 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Dose response study of the effects of chlorpyrifos on various biochemical measures in the fetus and dam during late gestation AN - 41383920; 3363558 AU - Lassiter, T L AU - Padilla, S AU - Chanda, S M AU - Das, K AU - Haykal-Coates, N AU - Hunter, D AU - Marshall, R AU - Barone, S Jr Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41383920?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Dose+response+study+of+the+effects+of+chlorpyrifos+on+various+biochemical+measures+in+the+fetus+and+dam+during+late+gestation&rft.au=Lassiter%2C+T+L%3BPadilla%2C+S%3BChanda%2C+S+M%3BDas%2C+K%3BHaykal-Coates%2C+N%3BHunter%2C+D%3BMarshall%2C+R%3BBarone%2C+S+Jr&rft.aulast=Lassiter&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 785 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Estimating VMAX in a physiologically-based pharmacokinetic chloroform rat model with and without variability in physiological parameters AN - 41383908; 3363446 AU - Eklund, C R AU - Evans, M V Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41383908?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Estimating+VMAX+in+a+physiologically-based+pharmacokinetic+chloroform+rat+model+with+and+without+variability+in+physiological+parameters&rft.au=Eklund%2C+C+R%3BEvans%2C+M+V&rft.aulast=Eklund&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA, Abstracts available. Price $45. Poster Paper No. 673 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hepatotoxicity and nephrotoxicity of inhaled epichlorohydrin in F344 rats AN - 41376598; 2081220 AU - Robinson, B L AU - Allis, J W AU - Andrews, JE AU - McDonald, A AU - Simmons, JE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41376598?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hepatotoxicity+and+nephrotoxicity+of+inhaled+epichlorohydrin+in+F344+rats&rft.au=Robinson%2C+B+L%3BAllis%2C+J+W%3BAndrews%2C+JE%3BMcDonald%2C+A%3BSimmons%2C+JE&rft.aulast=Robinson&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1133 Fifteenth Street, NW, Suite 1000, Washington, DC 20005 (USA), Price: $ 20.00 + $ 3.00 for postage and handling Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Trimethyltin (TMT) effects on auditory function and cochlear pathology AN - 41372829; 2078161 AU - Crofton, K M AU - Dean, K F AU - Menache, M G AU - Janssen, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41372829?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Trimethyltin+%28TMT%29+effects+on+auditory+function+and+cochlear+pathology&rft.au=Crofton%2C+K+M%3BDean%2C+K+F%3BMenache%2C+M+G%3BJanssen%2C+R&rft.aulast=Crofton&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1133 Fifteenth Street, NW, Suite 1000, Washington, DC 20005 (USA), Price: $ 20.00 + $ 3.00 for postage and handling Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Subchronic toxicity study in rats with thallium AN - 41369902; 2078251 AU - Bathija, A AU - Rubenstein, R AU - Sonawane, B R AU - Choudhury, H AU - DeRosa, C AU - Irene, S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41369902?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Subchronic+toxicity+study+in+rats+with+thallium&rft.au=Bathija%2C+A%3BRubenstein%2C+R%3BSonawane%2C+B+R%3BChoudhury%2C+H%3BDeRosa%2C+C%3BIrene%2C+S&rft.aulast=Bathija&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1133 Fifteenth Street, NW, Suite 1000, Washington, DC 20005 (USA), Price: $ 20.00 + $ 3.00 for postage and handling Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Dimethylarsinic acid treatment damages rat pulmonary DNA: Relevance to arsenic carcinogenesis AN - 41364708; 3350099 AU - Kitchin, K T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 1500:Biochemistry KW - U 7500:Pharmacology KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41364708?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Dimethylarsinic+acid+treatment+damages+rat+pulmonary+DNA%3A+Relevance+to+arsenic+carcinogenesis&rft.au=Kitchin%2C+K+T&rft.aulast=Kitchin&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: International Society for the Study of Xenobiotics, P.O. Box 3, Cabin John, MD 20818. Poster Paper No. 131 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Status and future of inorganic environmental analysis "in the field" AN - 41363190; 3368213 AU - Fordham, OM Jr Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41363190?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Status+and+future+of+inorganic+environmental+analysis+%22in+the+field%22&rft.au=Fordham%2C+OM+Jr&rft.aulast=Fordham&rft.aufirst=OM&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: PITTCON '98, 300 Penn Center Boulevard, Suite 332, Pittsburgh, PA 15235-5503, USA, Abstracts available. Price $10 (USA); $12 (Outside USA). Paper No. 818 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Comparative toxicity of 2,3,7,8-TCDD toxicity in medaka and carp AN - 41355761; 1935728 AU - Lothenbach, D B AU - Johnson, R D AU - Henry, T R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41355761?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Comparative+toxicity+of+2%2C3%2C7%2C8-TCDD+toxicity+in+medaka+and+carp&rft.au=Lothenbach%2C+D+B%3BJohnson%2C+R+D%3BHenry%2C+T+R&rft.aulast=Lothenbach&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC, 1133 15th Street NW, Suite 1000, Washington, DC 20005 (USA). Telephone: 202 785 2778., Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Remediation and recovery of a mine-impacted Rocky Mountain stream AN - 41348630; 3336746 AU - McCormick, F H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41348630?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Remediation+and+recovery+of+a+mine-impacted+Rocky+Mountain+stream&rft.au=McCormick%2C+F+H&rft.aulast=McCormick&rft.aufirst=F&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Washington, College of Fisheries, Seattle, WA 98195, Contact individual authors directly, or search abstracts on the www at http://artedi.fish.washington.edu/cgi-bin/asigate N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Trends in U.S. EPA's procurement efforts to reduce claims AN - 41343899; 1957670 AU - Whalen, T A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41343899?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Trends+in+U.S.+EPA%27s+procurement+efforts+to+reduce+claims&rft.au=Whalen%2C+T+A&rft.aulast=Whalen&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASCE, 345 E 47th Street, New York, NY 10017 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - PCB analyses of biota and applications to risk assessment AN - 41343870; 1936494 AU - Norton, S B AU - Pruell, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41343870?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=PCB+analyses+of+biota+and+applications+to+risk+assessment&rft.au=Norton%2C+S+B%3BPruell%2C+R&rft.aulast=Norton&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC, 1133 15th Street NW, Suite 1000, Washington, DC 20005 (USA). Telephone: 202 785 2778., Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - U.S. EPA's IRIS pilot-provisional revised assessments of noncancer and cancer toxicity for chlordane AN - 41322189; 3303167 AU - McGaughy, R E AU - Foureman, G L AU - Vu, V Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41322189?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=U.S.+EPA%27s+IRIS+pilot-provisional+revised+assessments+of+noncancer+and+cancer+toxicity+for+chlordane&rft.au=McGaughy%2C+R+E%3BFoureman%2C+G+L%3BVu%2C+V&rft.aulast=McGaughy&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, Attn: Nell Dillard, Abstracts available. Price $55. Poster Paper No. 845 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Influence of storage conditions of the stability of cholinesterase (ChE) activity in plasma and brain tissue taken from carbamate or organophosphate-treated animals AN - 41321830; 3302598 AU - Hunter, D L AU - Chanda, S M AU - Padilla, S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41321830?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Influence+of+storage+conditions+of+the+stability+of+cholinesterase+%28ChE%29+activity+in+plasma+and+brain+tissue+taken+from+carbamate+or+organophosphate-treated+animals&rft.au=Hunter%2C+D+L%3BChanda%2C+S+M%3BPadilla%2C+S&rft.aulast=Hunter&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, Attn: Nell Dillard, Abstracts available. Price $55. Paper No. 274 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - USEPA: Risk characterization policy and guidance AN - 41321796; 3302586 AU - Fowle, JR III Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41321796?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=USEPA%3A+Risk+characterization+policy+and+guidance&rft.au=Fowle%2C+JR+III&rft.aulast=Fowle&rft.aufirst=JR&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, Attn: Nell Dillard, Abstracts available. Price $55. Paper No. 262 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - EPA client surveys reveal impact on state agencies AN - 41320061; 3303163 AU - Marsh, M L AU - Shoaf, C R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41320061?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=EPA+client+surveys+reveal+impact+on+state+agencies&rft.au=Marsh%2C+M+L%3BShoaf%2C+C+R&rft.aulast=Marsh&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, Attn: Nell Dillard, Abstracts available. Price $55. Poster Paper No. 841 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - MAP kinase cascade is activated prior to the induction of gliosis in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropridine (MPTP) model of neuronal damage AN - 41318542; 3302406 AU - O'Callaghan, J P AU - Martin, P M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41318542?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=MAP+kinase+cascade+is+activated+prior+to+the+induction+of+gliosis+in+the+1-methyl-4-phenyl-1%2C2%2C3%2C6-tetrahydropridine+%28MPTP%29+model+of+neuronal+damage&rft.au=O%27Callaghan%2C+J+P%3BMartin%2C+P+M&rft.aulast=O%27Callaghan&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, Attn: Nell Dillard, Abstracts available. Price $55. Poster Paper No. 81 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Expert system to predict the metabolism of environmental toxicants AN - 41318324; 1935656 AU - Bradbury, S P AU - Hunter, R S AU - Hammermeister, SAT Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41318324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Expert+system+to+predict+the+metabolism+of+environmental+toxicants&rft.au=Bradbury%2C+S+P%3BHunter%2C+R+S%3BHammermeister%2C+SAT&rft.aulast=Bradbury&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC, 1133 15th Street NW, Suite 1000, Washington, DC 20005 (USA). Telephone: 202 785 2778. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Implementing EPA's proposed cancer guidelines AN - 41305645; 3304020 AU - Farland, W H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41305645?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Implementing+EPA%27s+proposed+cancer+guidelines&rft.au=Farland%2C+W+H&rft.aulast=Farland&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, Attn: Nell Dillard, Abstracts available. Price $55. Paper No. 1699 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Developmental effects of gestational exposure to chlorpyrifos in the rat AN - 41305552; 3303622 AU - Barone, S Jr AU - Lau, C AU - Moser, V C AU - Phillips, P M AU - McDaniel, K L AU - Hunter, D AU - Marshall, R AU - Kodavanti, P AU - Derr-Yellin, E AU - Padilla, S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41305552?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Developmental+effects+of+gestational+exposure+to+chlorpyrifos+in+the+rat&rft.au=Barone%2C+S+Jr%3BLau%2C+C%3BMoser%2C+V+C%3BPhillips%2C+P+M%3BMcDaniel%2C+K+L%3BHunter%2C+D%3BMarshall%2C+R%3BKodavanti%2C+P%3BDerr-Yellin%2C+E%3BPadilla%2C+S&rft.aulast=Barone&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, Attn: Nell Dillard, Abstracts available. Price $55. Poster Paper No. 1301 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Federal perspective: Initiatives of the Clinton Administration AN - 41303968; 3305667 AU - Goldman, L R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41303968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Federal+perspective%3A+Initiatives+of+the+Clinton+Administration&rft.au=Goldman%2C+L+R&rft.aulast=Goldman&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Association for the Advancement of Science, Membership Services, 1200 New York Avenue, NW, Washington, DC 20005, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Federal strategy for air toxics control in the United States AN - 41303095; 1824466 AU - Wiltse, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41303095?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Federal+strategy+for+air+toxics+control+in+the+United+States&rft.au=Wiltse%2C+J&rft.aulast=Wiltse&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Environment Canada, Publication Services Conservation and Protection, Ottawa, Ontario K1A OH3 (Canada) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Gamma distribution analysis of chemical carcinogenicity AN - 41300152; 3303176 AU - Chiu, N AU - Orme-Zaraleta, J AU - Chiu, A AU - Butcher, J AU - Singh, D AU - Bayliss, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41300152?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Gamma+distribution+analysis+of+chemical+carcinogenicity&rft.au=Chiu%2C+N%3BOrme-Zaraleta%2C+J%3BChiu%2C+A%3BButcher%2C+J%3BSingh%2C+D%3BBayliss%2C+D&rft.aulast=Chiu&rft.aufirst=N&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, Attn: Nell Dillard, Abstracts available. Price $55. Poster Paper No. 854 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Aseptic subsurface sampling techniques for hollow-stem auger drilling AN - 41290662; 1817044 AU - Leach, LE AU - Beck, F P AU - Wilson, J T AU - Kampbell, D H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41290662?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Aseptic+subsurface+sampling+techniques+for+hollow-stem+auger+drilling&rft.au=Leach%2C+LE%3BBeck%2C+F+P%3BWilson%2C+J+T%3BKampbell%2C+D+H&rft.aulast=Leach&rft.aufirst=LE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: National Water Well Association, 6375 Riverside Drive, Dublin, OH 43017 (USA). Telephone (614) 761-1711. Telex-241302 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of OPA 90 response planning on reported spills AN - 41285735; 3305344 AU - Stalcup, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41285735?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effects+of+OPA+90+response+planning+on+reported+spills&rft.au=Stalcup%2C+D&rft.aulast=Stalcup&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Petroleum Institute, 1220 L Street, NW, Washington, DC 20005; Phone: (202) 682-8375; Fax: (202) 962-4776, Proceedings available. Price $80. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Bunker Hill basin groundwater remediation, San Bernadino, CA - A superfund toxic cleanup heading toward success AN - 41285605; 3294381 AU - Mayer, K P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41285605?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Bunker+Hill+basin+groundwater+remediation%2C+San+Bernadino%2C+CA+-+A+superfund+toxic+cleanup+heading+toward+success&rft.au=Mayer%2C+K+P&rft.aulast=Mayer&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Paper No. H22D-6 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Congeneric specific PCB analysis: Applying a research technique to production analyses AN - 41284700; 1818243 AU - Mullin, MD AU - Utz, J L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41284700?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Congeneric+specific+PCB+analysis%3A+Applying+a+research+technique+to+production+analyses&rft.au=Mullin%2C+MD%3BUtz%2C+J+L&rft.aulast=Mullin&rft.aufirst=MD&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Conference Services, Commons Building 101B, McMaster University, Hamilton, Ontario L8S 4K1 (Canada), Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hepatotoxicity of trihalomethanes (THMs) in female mice AN - 41283260; 3303942 AU - McDonald, A AU - Gennings, C AU - Sey, Y M AU - Carter, WH Jr AU - Teuschler, L K AU - Simmons, JE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41283260?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hepatotoxicity+of+trihalomethanes+%28THMs%29+in+female+mice&rft.au=McDonald%2C+A%3BGennings%2C+C%3BSey%2C+Y+M%3BCarter%2C+WH+Jr%3BTeuschler%2C+L+K%3BSimmons%2C+JE&rft.aulast=McDonald&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190, Attn: Nell Dillard, Abstracts available. Price $55. Poster Paper No. 1621 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Influence of residential wood combustion on indoor air quality of Boise, Idaho residences AN - 41263384; 1748629 AU - Highsmith, R AU - Rhodes, CE AU - Zweidinger, R B AU - Hardy, R J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41263384?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Influence+of+residential+wood+combustion+on+indoor+air+quality+of+Boise%2C+Idaho+residences&rft.au=Highsmith%2C+R%3BRhodes%2C+CE%3BZweidinger%2C+R+B%3BHardy%2C+R+J&rft.aulast=Highsmith&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: A.P.C.A., P.O. Box 2861, Pittsburgh, PA 15230 (USA), Proceedings available to symposia attendees N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Chamber studies characterizing the organic emissions from kerosene space heaters: Phase II AN - 41258923; 1748623 AU - White, J B AU - Mumford, J L AU - Leaderer, B P AU - Boone, P M AU - Hammond, S K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41258923?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Chamber+studies+characterizing+the+organic+emissions+from+kerosene+space+heaters%3A+Phase+II&rft.au=White%2C+J+B%3BMumford%2C+J+L%3BLeaderer%2C+B+P%3BBoone%2C+P+M%3BHammond%2C+S+K&rft.aulast=White&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: A.P.C.A., P.O. Box 2861, Pittsburgh, PA 15230 (USA), Proceedings available to symposia attendees N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Graphical exposure modeling AN - 41258251; 1777231 AU - Kinnerson, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41258251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Graphical+exposure+modeling&rft.au=Kinnerson%2C+R&rft.aulast=Kinnerson&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Publication Sales, AIChE, 345 East 47th Street, New York, NY 10017 (USA). Telephone (212) 705-7657, Proceedings available; pre-publication price is $60.00 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Method for determination of polychlorinated dibenzo-P-dioxins and dibenzofurans in stack gas emissions and ambient air AN - 41256341; 1748598 AU - Harless, R L AU - McDaniel, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41256341?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Method+for+determination+of+polychlorinated+dibenzo-P-dioxins+and+dibenzofurans+in+stack+gas+emissions+and+ambient+air&rft.au=Harless%2C+R+L%3BMcDaniel%2C+D&rft.aulast=Harless&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: A.P.C.A., P.O. Box 2861, Pittsburgh, PA 15230 (USA), Proceedings available to symposia attendees N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Impact of residential wood combustion and automotive emissions on the Boise, Idaho airshed AN - 41255452; 1748643 AU - Highsmith, R AU - Fitz-Simmons, T R AU - Zweidinger, R B AU - Baumgardner, R AU - Lewtas, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41255452?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Impact+of+residential+wood+combustion+and+automotive+emissions+on+the+Boise%2C+Idaho+airshed&rft.au=Highsmith%2C+R%3BFitz-Simmons%2C+T+R%3BZweidinger%2C+R+B%3BBaumgardner%2C+R%3BLewtas%2C+J&rft.aulast=Highsmith&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: A.P.C.A., P.O. Box 2861, Pittsburgh, PA 15230 (USA), Proceedings available to symposia attendees N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Evaluation of a remediation process for lead-contaminated soil by toxicity bioassays: Plants and earthworms AN - 41255172; 3284731 AU - Chang, L W AU - Smith, M K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41255172?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Evaluation+of+a+remediation+process+for+lead-contaminated+soil+by+toxicity+bioassays%3A+Plants+and+earthworms&rft.au=Chang%2C+L+W%3BSmith%2C+M+K&rft.aulast=Chang&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Poster Paper No. P0029 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Findings from the emergency systems study under 305b of SARA AN - 41254038; 1773646 AU - Davies, E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41254038?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Findings+from+the+emergency+systems+study+under+305b+of+SARA&rft.au=Davies%2C+E&rft.aulast=Davies&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Publication Sales, AIChE, 345 East 47th Street, New York, NY 10017 (USA). Telephone (212) 705-7657, Proceedings available; pre-publication price is $60.00 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Aquatic toxicology and ecological risk assessment of industrial chemicals: The growing international focus AN - 41253869; 3284590 AU - Zeeman, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41253869?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Aquatic+toxicology+and+ecological+risk+assessment+of+industrial+chemicals%3A+The+growing+international+focus&rft.au=Zeeman%2C+M&rft.aulast=Zeeman&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Paper No. 515 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Influence of storage time on the toxicity of sediments to freshwater benthic invertebrates AN - 41253452; 3285666 AU - DeFoe, D L AU - Ankley, G T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41253452?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Influence+of+storage+time+on+the+toxicity+of+sediments+to+freshwater+benthic+invertebrates&rft.au=DeFoe%2C+D+L%3BAnkley%2C+G+T&rft.aulast=DeFoe&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Poster Paper No. P0986 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Interstitial water sampling method with reduced losses of polynuclear aromatic hydrocarbon compounds and maximum volumes AN - 41251380; 3285676 AU - Ozretich, R AU - Schults, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41251380?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Interstitial+water+sampling+method+with+reduced+losses+of+polynuclear+aromatic+hydrocarbon+compounds+and+maximum+volumes&rft.au=Ozretich%2C+R%3BSchults%2C+D&rft.aulast=Ozretich&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Poster Paper No. P0996 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Quality assurance plan used at the Love Canal emergency declaration area indoor air analyses by a TAGA 6000E mass spectrometer/mass spectrometer AN - 41249925; 1748652 AU - Pritchett, TH AU - Kurlick, N AU - Mickunas, D AU - Weston, R F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41249925?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Quality+assurance+plan+used+at+the+Love+Canal+emergency+declaration+area+indoor+air+analyses+by+a+TAGA+6000E+mass+spectrometer%2Fmass+spectrometer&rft.au=Pritchett%2C+TH%3BKurlick%2C+N%3BMickunas%2C+D%3BWeston%2C+R+F&rft.aulast=Pritchett&rft.aufirst=TH&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: A.P.C.A., P.O. Box 2861, Pittsburgh, PA 15230 (USA), Proceedings available to symposia attendees N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Variation of acid volatile sulfide and metals in field-exposed sediments AN - 41249473; 3284490 AU - Boothman, W AU - Hansen, D AU - Berry, W AU - Robson, D AU - Helmstetter, A AU - Corbin, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41249473?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Variation+of+acid+volatile+sulfide+and+metals+in+field-exposed+sediments&rft.au=Boothman%2C+W%3BHansen%2C+D%3BBerry%2C+W%3BRobson%2C+D%3BHelmstetter%2C+A%3BCorbin%2C+J&rft.aulast=Boothman&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Paper No. 415 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Wind direction dependent whole-air sampling for ambient VOC's AN - 41247453; 1776951 AU - Pleil, J D AU - McClenny, WA AU - Oliver, K D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41247453?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Wind+direction+dependent+whole-air+sampling+for+ambient+VOC%27s&rft.au=Pleil%2C+J+D%3BMcClenny%2C+WA%3BOliver%2C+K+D&rft.aulast=Pleil&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air Pollution Control Association, P.O. Box 2861, Pittsburgh, PA 15230 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Accumulation of PCBs and effects in the mummichog (Fundulus heteroclitus), fed an artificial diet AN - 41247086; 3285600 AU - Gutjahr-Gobell, R E AU - Taplin, B K AU - Pruell, R J AU - Mills, L J AU - Black, DE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41247086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Accumulation+of+PCBs+and+effects+in+the+mummichog+%28Fundulus+heteroclitus%29%2C+fed+an+artificial+diet&rft.au=Gutjahr-Gobell%2C+R+E%3BTaplin%2C+B+K%3BPruell%2C+R+J%3BMills%2C+L+J%3BBlack%2C+DE&rft.aulast=Gutjahr-Gobell&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Poster Paper No. P0919 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Biomagnification of PCBs, PCDDs, and PCDFs in a simplified laboratory food chain AN - 41246866; 3285229 AU - Taplin, B AU - Pruell, R AU - McGovern, D AU - McKinney, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41246866?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Biomagnification+of+PCBs%2C+PCDDs%2C+and+PCDFs+in+a+simplified+laboratory+food+chain&rft.au=Taplin%2C+B%3BPruell%2C+R%3BMcGovern%2C+D%3BMcKinney%2C+R&rft.aulast=Taplin&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Poster Paper No. P0541 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Classification of mass spectra of toxic compounds with an inductive expert system AN - 41245688; 1748633 AU - Scott Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41245688?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Classification+of+mass+spectra+of+toxic+compounds+with+an+inductive+expert+system&rft.au=Scott&rft.aulast=Scott&rft.aufirst=&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: A.P.C.A., P.O. Box 2861, Pittsburgh, PA 15230 (USA), Proceedings available to symposia attendees N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Air pollution issues along the Texas and New Mexico borders with the Republic of Mexico AN - 41245428; 1776766 AU - Hathaway, W B AU - Yarbrough, J W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41245428?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Air+pollution+issues+along+the+Texas+and+New+Mexico+borders+with+the+Republic+of+Mexico&rft.au=Hathaway%2C+W+B%3BYarbrough%2C+J+W&rft.aulast=Hathaway&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air Pollution Control Association, P.O. Box 2861, Pittsburgh, PA 15230 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Screening ecological risk assessment for the WTI hazardous waste incinerator: Analysis and risk characterization AN - 41245217; 3284703 AU - Maurice, C AU - Mangino, M AU - Kappleman, W AU - Kao, A AU - Woltering, D AU - Johnston, A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41245217?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Screening+ecological+risk+assessment+for+the+WTI+hazardous+waste+incinerator%3A+Analysis+and+risk+characterization&rft.au=Maurice%2C+C%3BMangino%2C+M%3BKappleman%2C+W%3BKao%2C+A%3BWoltering%2C+D%3BJohnston%2C+A&rft.aulast=Maurice&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Poster Paper No. P0002 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Predicting the toxicity of silver-spiked sediments using interstitial water metal and acid volatile sulfide normalizations AN - 41244778; 3284540 AU - Berry, W AU - Cantwell, M AU - Edwards, P AU - Serbst, J AU - Hansen, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41244778?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Predicting+the+toxicity+of+silver-spiked+sediments+using+interstitial+water+metal+and+acid+volatile+sulfide+normalizations&rft.au=Berry%2C+W%3BCantwell%2C+M%3BEdwards%2C+P%3BSerbst%2C+J%3BHansen%2C+D&rft.aulast=Berry&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Paper No. 465 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Changes in RNA accumulation and protein synthesis in macrophages from humans exposed to ozone AN - 41243473; 1758259 AU - Devlin, R AU - Becker, S AU - Graham, D AU - Koren, H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41243473?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Changes+in+RNA+accumulation+and+protein+synthesis+in+macrophages+from+humans+exposed+to+ozone&rft.au=Devlin%2C+R%3BBecker%2C+S%3BGraham%2C+D%3BKoren%2C+H&rft.aulast=Devlin&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: FASEB, 9650 Rockville Pike, Bethesda, MD 20814 (USA), Price: $75.00 (FASEB J. personal subscribers), $150.00 (FASEB J. institutional subscribers), $60.00 abstracts issues. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Designing biodegradable chemicals AN - 41241642; 3285162 AU - Boethling, R S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41241642?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Designing+biodegradable+chemicals&rft.au=Boethling%2C+R+S&rft.aulast=Boethling&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Poster Paper No. P0473 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Benthic macroinvertebrate assemblages in a polychlorinated biphenyl and mercury contaminated salt marsh in southeast Georgia AN - 41241018; 3285660 AU - Sprenger, MD AU - Finley, N J AU - Horne, M T AU - Francendese, L AU - Peronard, P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41241018?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Benthic+macroinvertebrate+assemblages+in+a+polychlorinated+biphenyl+and+mercury+contaminated+salt+marsh+in+southeast+Georgia&rft.au=Sprenger%2C+MD%3BFinley%2C+N+J%3BHorne%2C+M+T%3BFrancendese%2C+L%3BPeronard%2C+P&rft.aulast=Sprenger&rft.aufirst=MD&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Poster Paper No. P0980 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Modeling and managing toxic chemicals: The Lake Michigan mass balance study AN - 41239590; 3284107 AU - Endicott, D D AU - Richardson, W L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41239590?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Modeling+and+managing+toxic+chemicals%3A+The+Lake+Michigan+mass+balance+study&rft.au=Endicott%2C+D+D%3BRichardson%2C+W+L&rft.aulast=Endicott&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Paper No. 032 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Environmental multi-attribute matrix information now in GSA product catalog AN - 41238440; 3285168 AU - Murray, T AU - Darr, J AU - Fiessner, C AU - Kennedy, P AU - Pierson, P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41238440?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Environmental+multi-attribute+matrix+information+now+in+GSA+product+catalog&rft.au=Murray%2C+T%3BDarr%2C+J%3BFiessner%2C+C%3BKennedy%2C+P%3BPierson%2C+P&rft.aulast=Murray&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Poster Paper No. P0479 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Enrichment of marine sediment colloids with polychlorinated biphenyls (PCBs) AN - 41238410; 3284488 AU - Burgess, R M AU - McKinney, R A AU - Brown, WA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41238410?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Enrichment+of+marine+sediment+colloids+with+polychlorinated+biphenyls+%28PCBs%29&rft.au=Burgess%2C+R+M%3BMcKinney%2C+R+A%3BBrown%2C+WA&rft.aulast=Burgess&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Paper No. 413 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Background to the conditional registration of acetochlor AN - 41236913; 3284423 AU - Behl, E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41236913?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Background+to+the+conditional+registration+of+acetochlor&rft.au=Behl%2C+E&rft.aulast=Behl&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Paper No. 348 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Green Chemistry Challenge AN - 41235455; 3285165 AU - Anastas, P T AU - Williamson, T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41235455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Green+Chemistry+Challenge&rft.au=Anastas%2C+P+T%3BWilliamson%2C+T&rft.aulast=Anastas&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Poster Paper No. P0476 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Persistent, bioaccumulative, and toxic substances AN - 41235297; 3284177 AU - Goldman, L R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41235297?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Persistent%2C+bioaccumulative%2C+and+toxic+substances&rft.au=Goldman%2C+L+R&rft.aulast=Goldman&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Paper No. 102 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Measurement and evaluation of personal exposure to aerosols AN - 41234157; 1743154 AU - Wiener, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41234157?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Measurement+and+evaluation+of+personal+exposure+to+aerosols&rft.au=Wiener%2C+R&rft.aulast=Wiener&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: A.P.C.A., P.O. Box 2861, Pittsburgh, PA 15230 (USA), Proceedings available to symposia attendees N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Sediment quality assessment through interpretation of bioaccumulation data AN - 41233805; 3284144 AU - Kravitz, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41233805?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Sediment+quality+assessment+through+interpretation+of+bioaccumulation+data&rft.au=Kravitz%2C+M&rft.aulast=Kravitz&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Paper No. 069 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Communicating about radon risk AN - 41233094; 1777010 AU - Fisher, AN AU - Desvousges, W H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41233094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Communicating+about+radon+risk&rft.au=Fisher%2C+AN%3BDesvousges%2C+W+H&rft.aulast=Fisher&rft.aufirst=AN&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air Pollution Control Association, P.O. Box 2861, Pittsburgh, PA 15230 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - In vivo and in vitro comparisons of 1,2,3-trichloropropane cardiotoxicity AN - 41233078; 1729426 AU - McKean, D L AU - Knohl, R B AU - Merrick, BA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41233078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=In+vivo+and+in+vitro+comparisons+of+1%2C2%2C3-trichloropropane+cardiotoxicity&rft.au=McKean%2C+D+L%3BKnohl%2C+R+B%3BMerrick%2C+BA&rft.aulast=McKean&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: FASEB, 9650 Rockville Pike, Bethesda, MD 20814 (USA), Price: $75.00 (FASEB J. personal subscribers), $150.00 (FASEB J. institutional subscribers), $60.00 abstracts issues. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Implementation of the environmental protection agency's radon action program AN - 41230981; 1776257 AU - Chiles, B L AU - Rinck, R T AU - Wagner, D C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41230981?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Implementation+of+the+environmental+protection+agency%27s+radon+action+program&rft.au=Chiles%2C+B+L%3BRinck%2C+R+T%3BWagner%2C+D+C&rft.aulast=Chiles&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air Pollution Control Association, P.O. Box 2861, Pittsburgh, PA 15230 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - EPA's perspective on risks from residential radon exposure AN - 41227633; 1776243 AU - Pushkin, J S AU - Nelson, C B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41227633?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=EPA%27s+perspective+on+risks+from+residential+radon+exposure&rft.au=Pushkin%2C+J+S%3BNelson%2C+C+B&rft.aulast=Pushkin&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air Pollution Control Association, P.O. Box 2861, Pittsburgh, PA 15230 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Recent developments in the Federal new source review program AN - 41227397; 1775342 AU - McCutchen, G D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41227397?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Recent+developments+in+the+Federal+new+source+review+program&rft.au=McCutchen%2C+G+D&rft.aulast=McCutchen&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air Pollution Control Association, P.O. Box 2861, Pittsburgh, PA 15230 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Evaluation of canister collection for low level source emission of toxic organic air pollutants AN - 41227224; 1775140 AU - Gholson, A R AU - Storm, J F AU - Jayanty, RKM AU - Fuerst, R G AU - Logan, T J AU - Midgett, M R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41227224?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Evaluation+of+canister+collection+for+low+level+source+emission+of+toxic+organic+air+pollutants&rft.au=Gholson%2C+A+R%3BStorm%2C+J+F%3BJayanty%2C+RKM%3BFuerst%2C+R+G%3BLogan%2C+T+J%3BMidgett%2C+M+R&rft.aulast=Gholson&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air Pollution Control Association, P.O. Box 2861, Pittsburgh, PA 15230 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Automation of the resistivity measurement for fly ash AN - 41225392; 1775642 AU - Nolen, S L AU - Elliott, DE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41225392?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Automation+of+the+resistivity+measurement+for+fly+ash&rft.au=Nolen%2C+S+L%3BElliott%2C+DE&rft.aulast=Nolen&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air Pollution Control Association, P.O. Box 2861, Pittsburgh, PA 15230 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - EPA's approach to risk assessment and risk management AN - 41220274; 1700543 AU - Preuss, P W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:MUTIDISCIPLINARY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41220274?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=EPA%27s+approach+to+risk+assessment+and+risk+management&rft.au=Preuss%2C+P+W&rft.aulast=Preuss&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Association for the Advancement of Science, 1333 H Street N.W., Washington, DC 20005 (USA), AAAS Publication 87-31 contains abstracts of papers presented at the meeting N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Mineral fibers: Regulatory actions on asbestos and other fibers AN - 41219848; 1708946 AU - Schanamann Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41219848?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Mineral+fibers%3A+Regulatory+actions+on+asbestos+and+other+fibers&rft.au=Schanamann&rft.aulast=Schanamann&rft.aufirst=&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Mining Engineers, P.O. Box 625002, Littleton, CO 80162-5002 (USA), Publication availability uncertain N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Dermal absorption and distribution of super(14)C-labeled captan in young and adult rats AN - 41219340; 1749813 AU - Fisher, H L AU - Shah, P V AU - Sumler, M R AU - Hall, L L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41219340?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Dermal+absorption+and+distribution+of+super%2814%29C-labeled+captan+in+young+and+adult+rats&rft.au=Fisher%2C+H+L%3BShah%2C+P+V%3BSumler%2C+M+R%3BHall%2C+L+L&rft.aulast=Fisher&rft.aufirst=H&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: FASEB, 9650 Rockville Pike, Bethesda, MD 20814 (USA), Price: $75.00 (FASEB J. personal subscribers), $150.00 (FASEB J. institutional subscribers), $60.00 abstracts issues. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Importance of emissions data in post-1987 ozone and carbon monoxide state implementation plans AN - 41217586; 1775435 AU - Vogel, RH Jr Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41217586?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Importance+of+emissions+data+in+post-1987+ozone+and+carbon+monoxide+state+implementation+plans&rft.au=Vogel%2C+RH+Jr&rft.aulast=Vogel&rft.aufirst=RH&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Air Pollution Control Association, P.O. Box 2861, Pittsburgh, PA 15230 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Micronucleus induction by clastogenic compounds in three species of small mammals AN - 41217410; 3284450 AU - Meier, J R AU - Wernsing, P AU - Daniel, F B AU - Torsella, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41217410?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Micronucleus+induction+by+clastogenic+compounds+in+three+species+of+small+mammals&rft.au=Meier%2C+J+R%3BWernsing%2C+P%3BDaniel%2C+F+B%3BTorsella%2C+J&rft.aulast=Meier&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Paper No. 375 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Overview of gaseous dosimetry modeling at EPA AN - 41183292; 1606711 AU - Overton, J H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3500:CLINICAL MEDICINE KW - U 2000:BIOLOGY GENERAL KW - U 4500:EXPERIMENTAL MEDICINE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41183292?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Overview+of+gaseous+dosimetry+modeling+at+EPA&rft.au=Overton%2C+J+H&rft.aulast=Overton&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Alliance for Engineering in Medicine and Biology, 1101 Connecticut Avenue, N.W., Washington, DC 20036 (USA). Telephone: (202) 857-1199, Abstract No. 1.5 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Japanese activities in SO sub(2) and NOx control AN - 41181011; 1647621 AU - Sedman, C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 8500:POWER ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41181011?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Japanese+activities+in+SO+sub%282%29+and+NOx+control&rft.au=Sedman%2C+C&rft.aulast=Sedman&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Government Institutes, Inc., 966 Hungerford Drive, 24, Rockville, MD 20850 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Measuring and assuring progress and maintenance AN - 41156454; 1612716 AU - Johnson, D G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41156454?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Measuring+and+assuring+progress+and+maintenance&rft.au=Johnson%2C+D+G&rft.aulast=Johnson&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: APCA, P.O. Box 2861, Pittsburgh, PA 15230 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Proposed emission inventory requirements for post-1987 ozone state implementation plan AN - 41156040; 1612651 AU - Misenheimer, D C AU - Martinez, EL Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41156040?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Proposed+emission+inventory+requirements+for+post-1987+ozone+state+implementation+plan&rft.au=Misenheimer%2C+D+C%3BMartinez%2C+EL&rft.aulast=Misenheimer&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: APCA, P.O. Box 2861, Pittsburgh, PA 15230 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Cumulative risk: A new paradigm in risk assessment AN - 41153921; 3218532 AU - Bergeisen, G H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3500:Clinical Medicine UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41153921?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Cumulative+risk%3A+A+new+paradigm+in+risk+assessment&rft.au=Bergeisen%2C+G+H&rft.aulast=Bergeisen&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Society for Occupational & Environmental Health, 6728 Old McLean Village Drive, McLean, VA 22101, Expanded abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Addressing transport through the use of regional scale models AN - 41153551; 1612697 AU - Vogel, RH Jr Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41153551?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Addressing+transport+through+the+use+of+regional+scale+models&rft.au=Vogel%2C+RH+Jr&rft.aulast=Vogel&rft.aufirst=RH&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: APCA, P.O. Box 2861, Pittsburgh, PA 15230 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Accelerated registration of reduced-risk pesticides: Are we making progress? AN - 41103333; 3222828 AU - Johnson, S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41103333?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Accelerated+registration+of+reduced-risk+pesticides%3A+Are+we+making+progress%3F&rft.au=Johnson%2C+S&rft.aulast=Johnson&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Entomological Society of America, 9301 Annapolis Road, Lanham, MD 20706, Contact individual authors concerning paper availability. Paper No. 0029 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Development of slurry bioreactor system for bioremediation of contaminated soils AN - 41094465; 3208232 AU - Tzeng, J AU - McCauley, R AU - Glaser, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41094465?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Development+of+slurry+bioreactor+system+for+bioremediation+of+contaminated+soils&rft.au=Tzeng%2C+J%3BMcCauley%2C+R%3BGlaser%2C+J&rft.aulast=Tzeng&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Institute of Chemical Engineers, 345 East 47th Street, New York, NY 10017-2395, Selected papers available through AIChE. For other papers, contact author directly. Paper No. 137e N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Apparatus for alternatives to PM-10 sampling AN - 41085994; 3199047 AU - McFarland, A R AU - Moore, ME AU - Stevens, R K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41085994?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Apparatus+for+alternatives+to+PM-10+sampling&rft.au=McFarland%2C+A+R%3BMoore%2C+ME%3BStevens%2C+R+K&rft.aulast=McFarland&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The American Society for Aerosol Research, Kemper Woods Center, 1330 Kemper Meadow Drive, Cincinnati, OH 45240. Ph: 513-742-2227; Fax: 513-742-3355., Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Use of genetic toxicology data in U.S. EPA risk assessment; the mercury study report as an example AN - 41081306; 3192127 AU - Schoeny, R S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41081306?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Use+of+genetic+toxicology+data+in+U.S.+EPA+risk+assessment%3B+the+mercury+study+report+as+an+example&rft.au=Schoeny%2C+R+S&rft.aulast=Schoeny&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Prague Institute of Advanced Studies, U Michelskeho lesa 366, 140 00 Prague 4, Czech Republic, Abstracts available. Paper No. F3-4 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Development of the new federal reference method for fine particles: Options for reference and equivalent methods program AN - 41078767; 3198853 AU - Wiener, R W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41078767?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Development+of+the+new+federal+reference+method+for+fine+particles%3A+Options+for+reference+and+equivalent+methods+program&rft.au=Wiener%2C+R+W&rft.aulast=Wiener&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The American Society for Aerosol Research, Kemper Woods Center, 1330 Kemper Meadow Drive, Cincinnati, OH 45240. Ph: 513-742-2227; Fax: 513-742-3355., Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Risk assessment in superfund: Policies and procedures under SARA AN - 41043908; 1570577 AU - Sterling, MSS AU - Zamuda, C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41043908?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Risk+assessment+in+superfund%3A+Policies+and+procedures+under+SARA&rft.au=Sterling%2C+MSS%3BZamuda%2C+C&rft.aulast=Sterling&rft.aufirst=MSS&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, Publications Department, 9300 Columbia Blvd., Suite 123, Silver Spring, MD 20910 (USA). Telephone: (301) 587-9390 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Getting the removal/remedial process started on the right foot - the potentially responsible party search AN - 41041705; 1570496 AU - Gerst, D L AU - Ely, J AU - Heglund, W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41041705?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Getting+the+removal%2Fremedial+process+started+on+the+right+foot+-+the+potentially+responsible+party+search&rft.au=Gerst%2C+D+L%3BEly%2C+J%3BHeglund%2C+W&rft.aulast=Gerst&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, Publications Department, 9300 Columbia Blvd., Suite 123, Silver Spring, MD 20910 (USA). Telephone: (301) 587-9390 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - SEAM: A structured approach to site-specific exposure assessment for uncontrolled hazardous waste sites AN - 41039901; 1570598 AU - Tong, P AU - Azmuda, C AU - Schultz, H L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41039901?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=SEAM%3A+A+structured+approach+to+site-specific+exposure+assessment+for+uncontrolled+hazardous+waste+sites&rft.au=Tong%2C+P%3BAzmuda%2C+C%3BSchultz%2C+H+L&rft.aulast=Tong&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, Publications Department, 9300 Columbia Blvd., Suite 123, Silver Spring, MD 20910 (USA). Telephone: (301) 587-9390 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Impact of the RCRA land disposal restrictions on superfund response actions AN - 41030182; 1570643 AU - Antizoo, J AU - Cunningham, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41030182?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Impact+of+the+RCRA+land+disposal+restrictions+on+superfund+response+actions&rft.au=Antizoo%2C+J%3BCunningham%2C+J&rft.aulast=Antizoo&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: HMCRI, Publications Department, 9300 Columbia Blvd., Suite 123, Silver Spring, MD 20910 (USA). Telephone: (301) 587-9390 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Implementation of superfund: Community right to know AN - 41026894; 1511620 AU - Makris, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:MUTIDISCIPLINARY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41026894?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Implementation+of+superfund%3A+Community+right+to+know&rft.au=Makris%2C+J&rft.aulast=Makris&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: AAAS, 1333 H Street, N.W., Washington, DC 20005 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Evaluation of a sampling and analysis method for the determination of cadmium stationary source emissions AN - 41021547; 1513617 AU - Ward, TE AU - Moseman, R F AU - Robb, E V Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41021547?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Evaluation+of+a+sampling+and+analysis+method+for+the+determination+of+cadmium+stationary+source+emissions&rft.au=Ward%2C+TE%3BMoseman%2C+R+F%3BRobb%2C+E+V&rft.aulast=Ward&rft.aufirst=TE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: APCA, P.O. Box 2861, Pittsburgh, PA 15230 (USA). Telephone: (412) 232-3444 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - National ambient VOC data base AN - 41018316; 1513556 AU - Cupitt, L AU - Heyerdahl, E K AU - Batson, A AU - Shah, J J AU - Singh, H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41018316?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=National+ambient+VOC+data+base&rft.au=Cupitt%2C+L%3BHeyerdahl%2C+E+K%3BBatson%2C+A%3BShah%2C+J+J%3BSingh%2C+H&rft.aulast=Cupitt&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: APCA, P.O. Box 2861, Pittsburgh, PA 15230 (USA). Telephone: (412) 232-3444 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Mapping cancer mortality by decade AN - 41017585; 1512747 AU - Creason, J P AU - Riggan, W R AU - Woodbury, MA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:MUTIDISCIPLINARY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41017585?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Mapping+cancer+mortality+by+decade&rft.au=Creason%2C+J+P%3BRiggan%2C+W+R%3BWoodbury%2C+MA&rft.aulast=Creason&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: AAAS, 1333 H Street, N.W., Washington, DC 20005 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Inhalation exposure from volatile organic contaminants in drinking water AN - 41014942; 1509659 AU - Heston, G AU - Zickler, M AU - Wilder, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41014942?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Inhalation+exposure+from+volatile+organic+contaminants+in+drinking+water&rft.au=Heston%2C+G%3BZickler%2C+M%3BWilder%2C+L&rft.aulast=Heston&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: APCA, P.O. 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Telephone: (412) 232-3444 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Monitoring and detection: Case studies AN - 41011178; 1517250 AU - Pitchford, A AU - Walther, E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41011178?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Monitoring+and+detection%3A+Case+studies&rft.au=Pitchford%2C+A%3BWalther%2C+E&rft.aulast=Pitchford&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Society of Civil Engineers, 345 East 47th Street, New York, NY 10017 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Wellfield protection--an important tool for ground water management AN - 41007140; 1517362 AU - Hoffer, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41007140?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Wellfield+protection--an+important+tool+for+ground+water+management&rft.au=Hoffer%2C+R&rft.aulast=Hoffer&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Society of Civil Engineers, 345 East 47th Street, New York, NY 10017 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Degradation of kepone by Pseudomonas species AN - 40914449; 1258377 AU - George, SE AU - King, L C AU - Claxton, L D AU - Lewtas, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40914449?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Degradation+of+kepone+by+Pseudomonas+species&rft.au=George%2C+SE%3BKing%2C+L+C%3BClaxton%2C+L+D%3BLewtas%2C+J&rft.aulast=George&rft.aufirst=SE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Society for Microbiology, 1913 I Street, N.W., Washington, DC 20006 (USA), Poster Paper No. Q2 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of the fungicide dinocap on otolith development in the CD-1 mouse AN - 40894576; 1178569 AU - Rogers, J M AU - Gray, LE AU - Kavlock, R J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40894576?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effects+of+the+fungicide+dinocap+on+otolith+development+in+the+CD-1+mouse&rft.au=Rogers%2C+J+M%3BGray%2C+LE%3BKavlock%2C+R+J&rft.aulast=Rogers&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: FASEB, 9650 Rockville Pike, Bethesda, MD 20814 (USA), Poster Paper No. 1709 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Self-service station vehicle refueling exposure study AN - 40881841; 1174658 AU - Bond, A E AU - Thompson, V L AU - Ortman, G C AU - Black, F M AU - Sigsey, JE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40881841?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Self-service+station+vehicle+refueling+exposure+study&rft.au=Bond%2C+A+E%3BThompson%2C+V+L%3BOrtman%2C+G+C%3BBlack%2C+F+M%3BSigsey%2C+JE&rft.aulast=Bond&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SAE, Department 496, 400 Commonwealth Drive, Warrendale, PA 15096 (USA), Papers may be ordered individually. Price -- $2.75 per paper (SAE members); $4.50 per paper (non-members) Paper No. 860088 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Time course of electrophysiological changes in the superior colliculus of adult long-evans rats following monocular enucleation AN - 40872809; 1134977 AU - Boyes, W K AU - Veronesi, B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4500:EXPERIMENTAL MEDICINE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40872809?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Time+course+of+electrophysiological+changes+in+the+superior+colliculus+of+adult+long-evans+rats+following+monocular+enucleation&rft.au=Boyes%2C+W+K%3BVeronesi%2C+B&rft.aulast=Boyes&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society for Neuroscience, 11 Dupont Circle, N.W., Suite 130, Washington, DC 20036 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Cholinergic involvement in the behavioral actions of formetanate, a formamidine pesticide AN - 40866301; 1139069 AU - Moser, V C AU - MacPhail, R C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4500:EXPERIMENTAL MEDICINE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40866301?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Cholinergic+involvement+in+the+behavioral+actions+of+formetanate%2C+a+formamidine+pesticide&rft.au=Moser%2C+V+C%3BMacPhail%2C+R+C&rft.aulast=Moser&rft.aufirst=V&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society for Neuroscience, 11 Dupont Circle, N.W., Suite 130, Washington, DC 20036 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Multi-laboratory intercomparison study of elemental analyses by ICP in hazardous waste samples AN - 40851311; 1089161 AU - Ward, G K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40851311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Multi-laboratory+intercomparison+study+of+elemental+analyses+by+ICP+in+hazardous+waste+samples&rft.au=Ward%2C+G+K&rft.aulast=Ward&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ICP Information Newsletter, c/o R. Barnes, Department of Chemistry, GRC Towers, University of Massachusetts, Amherst, MA 01003-0035 (USA), Price: $35.00; ISSN: 0161-6951 Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - The future of a mammalian wildlife toxicology test AN - 40830214; 1091230 AU - Ringer, R K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40830214?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=The+future+of+a+mammalian+wildlife+toxicology+test&rft.au=Ringer%2C+R+K&rft.aulast=Ringer&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmental Toxicology and Chemistry, P.O. Box 4352, Rockville, MD 20850 (USA), No formal proceedings will be published. Many of the papers will be published in the Society journal -- Environmental Toxicology and Chemistry N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Biological effects of acidification AN - 40793179; 1006538 AU - Eaton, J G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40793179?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Biological+effects+of+acidification&rft.au=Eaton%2C+J+G&rft.aulast=Eaton&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Ecological Society of America, General Business Office, Center for Environmental Studies, Arizona State University, Tempe, AZ 85287, USA, No written papers involved; only oral presentations N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Removal of azo dyes by the activated sludge process AN - 40790808; 0986456 AU - Shaul, G M AU - Dempsey, C R AU - Dostal, KA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40790808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Removal+of+azo+dyes+by+the+activated+sludge+process&rft.au=Shaul%2C+G+M%3BDempsey%2C+C+R%3BDostal%2C+KA&rft.aulast=Shaul&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: School of Engineering, Purdue University, Lafayette, IN 47907, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Risk assessment of genetically altered viruses AN - 40790654; 0981207 AU - Kamely, D AU - Falco, J W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:MUTIDISCIPLINARY KW - U 3500:CLINICAL MEDICINE KW - U 2000:BIOLOGY GENERAL KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40790654?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Risk+assessment+of+genetically+altered+viruses&rft.au=Kamely%2C+D%3BFalco%2C+J+W&rft.aulast=Kamely&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: AAAS, 1515 Massachusetts Avenue, N.W., Washington, DC 20005, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Puberty in rats and hamsters: A model for screening for reproductive toxicity AN - 40788817; 0980927 AU - Gray, LE.Jr AU - Ostby, J AU - Ferrell, J AU - Gray, K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40788817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Puberty+in+rats+and+hamsters%3A+A+model+for+screening+for+reproductive+toxicity&rft.au=Gray%2C+LE.Jr%3BOstby%2C+J%3BFerrell%2C+J%3BGray%2C+K&rft.aulast=Gray&rft.aufirst=LE.Jr&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: No ordering information available at the present time, Abstract No. M47 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Water quality data and urban nonpoint source pollution: The Nationwide Urban Runoff Program AN - 40788600; 0957012 AU - Niedzialkowski, D AU - Athayde, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40788600?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Water+quality+data+and+urban+nonpoint+source+pollution%3A+The+Nationwide+Urban+Runoff+Program&rft.au=Niedzialkowski%2C+D%3BAthayde%2C+D&rft.aulast=Niedzialkowski&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: North American Lake Management Society, P.O. Box 217, Merrifield, VA 22116 (USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Age dependent changes in gastrointestinal transprot and particulate retention in rats AN - 40746155; 0852370 AU - Laskey, J W AU - Rehnberg, G L AU - Hein, J F AU - Laws, S C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40746155?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Age+dependent+changes+in+gastrointestinal+transprot+and+particulate+retention+in+rats&rft.au=Laskey%2C+J+W%3BRehnberg%2C+G+L%3BHein%2C+J+F%3BLaws%2C+S+C&rft.aulast=Laskey&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: For proceedings availability contact Society of Toxicology, c/o Joseph R. Wasdovich, 475 Wolf Ledges Parkway, Akron, OH 44311, USA, Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of hepatotoxins on mouse and rat hepatocytes from preneoplastic/neoplastic lesions and from partial hepatectomized animals AN - 40741077; 0852483 AU - Chang, L W AU - Pereira, MA AU - Klaunig, JE AU - Ruch, R J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40741077?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effects+of+hepatotoxins+on+mouse+and+rat+hepatocytes+from+preneoplastic%2Fneoplastic+lesions+and+from+partial+hepatectomized+animals&rft.au=Chang%2C+L+W%3BPereira%2C+MA%3BKlaunig%2C+JE%3BRuch%2C+R+J&rft.aulast=Chang&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: For proceedings availability contact Society of Toxicology, c/o Joseph R. Wasdovich, 475 Wolf Ledges Parkway, Akron, OH 44311, USA, Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effect of environmental chemicals on toxicant metabolism as determined by in vitro enzyme activity and a model substrate assay AN - 40730046; 0853306 AU - Chadwick, R W AU - Carlson, G P AU - Trela, BA AU - Copeland, M F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40730046?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effect+of+environmental+chemicals+on+toxicant+metabolism+as+determined+by+in+vitro+enzyme+activity+and+a+model+substrate+assay&rft.au=Chadwick%2C+R+W%3BCarlson%2C+G+P%3BTrela%2C+BA%3BCopeland%2C+M+F&rft.aulast=Chadwick&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: For proceedings availability contact Society of Toxicology, c/o Joseph R. Wasdovich, 475 Wolf Ledges Parkway, Akron, OH 44311, USA, Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Physiological roles of cholinesterases and their implication for anticholinesterase exposure AN - 40726531; 0852868 AU - Dementi, B AU - Jaeger, R AU - van Seabaugh, Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40726531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Physiological+roles+of+cholinesterases+and+their+implication+for+anticholinesterase+exposure&rft.au=Dementi%2C+B%3BJaeger%2C+R%3Bvan+Seabaugh%2C&rft.aulast=Dementi&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: For proceedings availability contact Society of Toxicology, c/o Joseph R. Wasdovich, 475 Wolf Ledges Parkway, Akron, OH 44311, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Manganese chloride enhances natural killer (NK) cell activity in vitro AN - 40725073; 0851569 AU - Smialowicz, R J AU - Rogers, R R AU - Riddle, M M AU - Rowe, D G AU - Luebke, R W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40725073?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Manganese+chloride+enhances+natural+killer+%28NK%29+cell+activity+in+vitro&rft.au=Smialowicz%2C+R+J%3BRogers%2C+R+R%3BRiddle%2C+M+M%3BRowe%2C+D+G%3BLuebke%2C+R+W&rft.aulast=Smialowicz&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: For proceedings availability contact Society of Toxicology, c/o Joseph R. Wasdovich, 475 Wolf Ledges Parkway, Akron, OH 44311, USA, Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Acute, 14-day and subchronic toxicity of potassium picloram (PIC) administered to rats via the drinking water AN - 40719782; 0852867 AU - Condie, L W AU - Hayes, J R AU - Borzelleca, J F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40719782?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Acute%2C+14-day+and+subchronic+toxicity+of+potassium+picloram+%28PIC%29+administered+to+rats+via+the+drinking+water&rft.au=Condie%2C+L+W%3BHayes%2C+J+R%3BBorzelleca%2C+J+F&rft.aulast=Condie&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: For proceedings availability contact Society of Toxicology, c/o Joseph R. Wasdovich, 475 Wolf Ledges Parkway, Akron, OH 44311, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Fate of fenthion in salt marsh environments: Factors affecting biodegradation rates AN - 40703894; 0794645 AU - Cripe, C R AU - Pritchard, PH AU - Woods, ME AU - O'Neill, E J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40703894?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Fate+of+fenthion+in+salt+marsh+environments%3A+Factors+affecting+biodegradation+rates&rft.au=Cripe%2C+C+R%3BPritchard%2C+PH%3BWoods%2C+ME%3BO%27Neill%2C+E+J&rft.aulast=Cripe&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts book available: SETAC, P.O. Box 352, Rockville, MD 20850, USA, Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Methylene blue treatment of fathead minnow eggs: An alternative approach to assessing the sensitivity of test populations of fry AN - 40703388; 0794712 AU - Fikslin, T J AU - Ward, SH AU - Duda, S W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40703388?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Methylene+blue+treatment+of+fathead+minnow+eggs%3A+An+alternative+approach+to+assessing+the+sensitivity+of+test+populations+of+fry&rft.au=Fikslin%2C+T+J%3BWard%2C+SH%3BDuda%2C+S+W&rft.aulast=Fikslin&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts book available: SETAC, P.O. Box 352, Rockville, MD 20850, USA, Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Toxicity of some reference toxicants to Selenastrum capricornutum (Printz) and Dunaliella tertiolecta AN - 40701110; 0794991 AU - Robinson, EL Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40701110?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Toxicity+of+some+reference+toxicants+to+Selenastrum+capricornutum+%28Printz%29+and+Dunaliella+tertiolecta&rft.au=Robinson%2C+EL&rft.aulast=Robinson&rft.aufirst=EL&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts book available: SETAC, P.O. Box 352, Rockville, MD 20850, USA, Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Fate of fenthion in salt marsh environments: Transport and biodegradation in microcosms AN - 40696788; 0794951 AU - O'Neill, E J AU - Cripe, C R AU - Mueller, L H AU - Pritchard, PH Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40696788?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Fate+of+fenthion+in+salt+marsh+environments%3A+Transport+and+biodegradation+in+microcosms&rft.au=O%27Neill%2C+E+J%3BCripe%2C+C+R%3BMueller%2C+L+H%3BPritchard%2C+PH&rft.aulast=O%27Neill&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts book available: SETAC, P.O. Box 352, Rockville, MD 20850, USA, Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Modeling environmental fate and effects in Monroe Harbor, Michigan (Lake Erie) AN - 40688507; 0793785 AU - Gessner, M L AU - Richardson, W L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40688507?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Modeling+environmental+fate+and+effects+in+Monroe+Harbor%2C+Michigan+%28Lake+Erie%29&rft.au=Gessner%2C+M+L%3BRichardson%2C+W+L&rft.aulast=Gessner&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts book available: SETAC, P.O. Box 352, Rockville, MD 20850, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Legislative perspectives on regulation of biotechnology products AN - 40685997; 0793531 AU - Levin, MA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40685997?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Legislative+perspectives+on+regulation+of+biotechnology+products&rft.au=Levin%2C+MA&rft.aulast=Levin&rft.aufirst=MA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts book available: SETAC, P.O. Box 352, Rockville, MD 20850, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Airborne mercury in the Lake Superior watershed AN - 40676635; 0726362 AU - Glass, GE AU - Leonard, EN Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2000:BIOLOGY GENERAL KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40676635?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Airborne+mercury+in+the+Lake+Superior+watershed&rft.au=Glass%2C+GE%3BLeonard%2C+EN&rft.aulast=Glass&rft.aufirst=GE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: 1984, Abstracts booklet available: Jaan Terasmae, Geology Department, Brock University, St. Catharines, Ontario, Canada L2S 3A1 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Results of the 1981 nearshore Lake Ontario survey AN - 40675470; 0726860 AU - Rockwell, D C AU - Devault, DS III AU - Kizlauskas, A G AU - Palmer, M F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2000:BIOLOGY GENERAL KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40675470?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Results+of+the+1981+nearshore+Lake+Ontario+survey&rft.au=Rockwell%2C+D+C%3BDevault%2C+DS+III%3BKizlauskas%2C+A+G%3BPalmer%2C+M+F&rft.aulast=Rockwell&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: 1984, Abstracts booklet available: Jaan Terasmae, Geology Department, Brock University, St. Catharines, Ontario, Canada L2S 3A1 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Nervous system-specific proteins as biochemical indicators of neurotoxicity: Effects of acute administration of trimethyltin to the rat AN - 40654358; 0685251 AU - Brock, TO AU - O'Callaghan, J P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40654358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Nervous+system-specific+proteins+as+biochemical+indicators+of+neurotoxicity%3A+Effects+of+acute+administration+of+trimethyltin+to+the+rat&rft.au=Brock%2C+TO%3BO%27Callaghan%2C+J+P&rft.aulast=Brock&rft.aufirst=TO&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in Federation Proceedings (Mar. 1 and Mar. 5), 1984, FASEB, 9650 Rockville Pike, Bethesda, MD 20814, USA, Abstract No. 2849 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Leachate treatment - an overview of research and operating facilities AN - 40599228; 0558563 AU - James, S C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40599228?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Leachate+treatment+-+an+overview+of+research+and+operating+facilities&rft.au=James%2C+S+C&rft.aulast=James&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Water Pollution Control Federation, 2626 Pennsylvania Ave., Washington, DC 20037, USA, Bound volume of abstracts available for $5.00. Proceedings of Industrial Waste Sessions (8 sessions, 41 papers) also available N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Field evaluations of volatilization rate models for land disposal facilities AN - 40595109; 0538689 AU - Hwang, ST Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5000:GENERAL ENGINEERING AND TECHNOLOGY KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40595109?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Field+evaluations+of+volatilization+rate+models+for+land+disposal+facilities&rft.au=Hwang%2C+ST&rft.aulast=Hwang&rft.aufirst=ST&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Proceedings available: ASCE, Publications Fulfillment Dep., 345 E. 47th St., New York, NY 10017-2398, USA, Price: $75.00; 992 pages N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Prevalence of persistent respiratory symptoms in relation to ambient sulfur oxide exposure AN - 40539355; 0449868 AU - Chapman, R S AU - Calafiore, D C AU - Hasselblad, V Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4500:EXPERIMENTAL MEDICINE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40539355?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Prevalence+of+persistent+respiratory+symptoms+in+relation+to+ambient+sulfur+oxide+exposure&rft.au=Chapman%2C+R+S%3BCalafiore%2C+D+C%3BHasselblad%2C+V&rft.aulast=Chapman&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "American Review of Respiratory Disease", Apr. 1983, American Lung Association, 1740 Broadway, New York, NY 10019, USA, ISSN: 0003-0805. 22 Symposia available on tape cassettes: Convention-Seminar Cassettes, 11424 Vanowen St., N. Hollywood, CA 91605, USA; Price: $7.00/cassette N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Occurrence of TCDD in environmental samples from southwest Missouri AN - 40526208; 0391791 AU - Kleofer, R D AU - Bunn, W W AU - Yue, K T AU - Harris, D J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40526208?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Occurrence+of+TCDD+in+environmental+samples+from+southwest+Missouri&rft.au=Kleofer%2C+R+D%3BBunn%2C+W+W%3BYue%2C+K+T%3BHarris%2C+D+J&rft.aulast=Kleofer&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: For information please contact: American Chemical Society, A.T. Winstead, 1155 16th St. NW, Washington, DC 20036, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Toxic Substances Control Act: its problems and directions AN - 40525992; 0390843 AU - Sanderson, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40525992?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Toxic+Substances+Control+Act%3A+its+problems+and+directions&rft.au=Sanderson%2C+M&rft.aulast=Sanderson&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: For information please contact: American Chemical Society, A.T. Winstead, 1155 16th St. NW, Washington, DC 20036, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - ERT's air monitoring program for multimedia hazardous material incidences AN - 40525296; 0390562 AU - Turpin, R D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40525296?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=ERT%27s+air+monitoring+program+for+multimedia+hazardous+material+incidences&rft.au=Turpin%2C+R+D&rft.aulast=Turpin&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: For information please contact: American Chemical Society, A.T. Winstead, 1155 16th St. NW, Washington, DC 20036, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Determination of 2,3,7,8-TCDD industrial and municipal wastewaters, method 613, Part 1--Development and detection limits AN - 40525160; 0391782 AU - Foerst, D L AU - Longbottom, JE AU - Wesselman, R J AU - McMillin, C R AU - Noble, R W AU - Wood, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40525160?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Determination+of+2%2C3%2C7%2C8-TCDD+industrial+and+municipal+wastewaters%2C+method+613%2C+Part+1--Development+and+detection+limits&rft.au=Foerst%2C+D+L%3BLongbottom%2C+JE%3BWesselman%2C+R+J%3BMcMillin%2C+C+R%3BNoble%2C+R+W%3BWood%2C+D&rft.aulast=Foerst&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: For information please contact: American Chemical Society, A.T. Winstead, 1155 16th St. NW, Washington, DC 20036, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Data validation in a large, multi-laboratory environmental monitoring project AN - 40524779; 0388081 AU - Budde, W L AU - Prairie, R L AU - Britton, P W AU - Almich, B P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40524779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Data+validation+in+a+large%2C+multi-laboratory+environmental+monitoring+project&rft.au=Budde%2C+W+L%3BPrairie%2C+R+L%3BBritton%2C+P+W%3BAlmich%2C+B+P&rft.aulast=Budde&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: For information please contact: American Chemical Society, A.T. Winstead, 1155 16th St. NW, Washington, DC 20036, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Pesticide research and regulation AN - 40514672; 0397696 AU - Todhunter, JA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40514672?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Pesticide+research+and+regulation&rft.au=Todhunter%2C+JA&rft.aulast=Todhunter&rft.aufirst=JA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: For information please contact: American Chemical Society, A.T. Winstead, 1155 16th St. NW, Washington, DC 20036, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Biotransformation of Selected Organic Pollutants in Ground Water AN - 40457307; 0285551 AU - Wilson, J T AU - McNabb, J F AU - Wilson, B H AU - Noonan, MJ Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4500:EXPERIMENTAL MEDICINE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40457307?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Biotransformation+of+Selected+Organic+Pollutants+in+Ground+Water&rft.au=Wilson%2C+J+T%3BMcNabb%2C+J+F%3BWilson%2C+B+H%3BNoonan%2C+MJ&rft.aulast=Wilson&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Proceedings in: "Developments in Industrial Microbiology", May 1983, Society for Industrial Microbiology, 1401 Wilson Blvd., Arlington, VA 22209, L.C. No. 60-13953; ISSN 0070-4563; Price $34.95 + postage N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - OHMSETT Research Overview, 1979-1980 AN - 40432525; 0137454 AU - Farlow, J S AU - Griffiths, R A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 8500:POWER ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40432525?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=OHMSETT+Research+Overview%2C+1979-1980&rft.au=Farlow%2C+J+S%3BGriffiths%2C+R+A&rft.aulast=Farlow&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: 1981, Proceedings available: American Petroleum Institute, Publications Division, 2101 L St. NW, Washington, DC 20037, Price - $30 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - On the Flow Around Spill Cleanup Devices AN - 40430320; 0137441 AU - Griffiths, R A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 8500:POWER ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40430320?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=On+the+Flow+Around+Spill+Cleanup+Devices&rft.au=Griffiths%2C+R+A&rft.aulast=Griffiths&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: 1981, Proceedings available: American Petroleum Institute, Publications Division, 2101 L St. NW, Washington, DC 20037, Price - $30 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Removal Pathways and Fate of Organic Priority Pollutants in Treatment Systems - Chemical Considerations AN - 40425849; 0188453 AU - Strier, M P AU - Gallup, J D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40425849?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Removal+Pathways+and+Fate+of+Organic+Priority+Pollutants+in+Treatment+Systems+-+Chemical+Considerations&rft.au=Strier%2C+M+P%3BGallup%2C+J+D&rft.aulast=Strier&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: 1982, Proceedings available: Ann Arbor Science Publishers, Inc., Ann Arbor, MI 48106 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Overview of EPA's 1982 Ozone SIP Emission Inventory Requirements AN - 40423635; 0139686 AU - Southerland, J H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40423635?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Overview+of+EPA%27s+1982+Ozone+SIP+Emission+Inventory+Requirements&rft.au=Southerland%2C+J+H&rft.aulast=Southerland&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: 1981, Preprints available: APCA, P.O. Box 2861, Pittsburgh, PA 15230, Paper No. 81-12.7 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - PSD Set II-A New Regulatory Program AN - 40419738; 0139913 AU - Mayer, N AU - Tyler, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40419738?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=PSD+Set+II-A+New+Regulatory+Program&rft.au=Mayer%2C+N%3BTyler%2C+D&rft.aulast=Mayer&rft.aufirst=N&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: 1981, Preprints available: APCA, P.O. Box 2861, Pittsburgh, PA 15230, Paper No. 81-19.1 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Fugitive Air Emissions From Chemical Waste Dump Sites AN - 40418967; 0140411 AU - Esposito, P AU - Bromberg, S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40418967?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Fugitive+Air+Emissions+From+Chemical+Waste+Dump+Sites&rft.au=Esposito%2C+P%3BBromberg%2C+S&rft.aulast=Esposito&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: 1981, Preprints available: APCA, P.O. Box 2861, Pittsburgh, PA 15230, Paper No. 81-41.2 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Visibility Protection for National Parks and Wilderness Areas AN - 40417453; 0140108 AU - Pearson, J L AU - Horne, JA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40417453?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Visibility+Protection+for+National+Parks+and+Wilderness+Areas&rft.au=Pearson%2C+J+L%3BHorne%2C+JA&rft.aulast=Pearson&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: 1981, Preprints available: APCA, P.O. Box 2861, Pittsburgh, PA 15230, Paper No. 81-29.1 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - International Regulatory Actions on CFC AN - 40416548; 0140314 AU - Harris, F A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40416548?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=International+Regulatory+Actions+on+CFC&rft.au=Harris%2C+F+A&rft.aulast=Harris&rft.aufirst=F&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: 1981, Preprints available: APCA, P.O. Box 2861, Pittsburgh, PA 15230, Paper No. 81-36.2 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Environmental Protection Agency Combustion Research Facility: From Concept to Reality AN - 40411435; 0180997 AU - Carnes, R A AU - Whitmore, F C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40411435?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Environmental+Protection+Agency+Combustion+Research+Facility%3A+From+Concept+to+Reality&rft.au=Carnes%2C+R+A%3BWhitmore%2C+F+C&rft.aulast=Carnes&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Proceedings available: NTIS, Department of Commerce, 5285 Port Royal Rd., Springfield, VA 22161, Order No. PB-82 173022; Paper copy $39.00 (A24); Fiche $4.00 (A01); Treatment & Incineration Section of Proceedings from L. Staley, IERL, EPA, Cincinnati, OH N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Recovering Metals From Metal Finishing Wastes AN - 40410498; 0181018 AU - Craig, AB Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40410498?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Recovering+Metals+From+Metal+Finishing+Wastes&rft.au=Craig%2C+AB&rft.aulast=Craig&rft.aufirst=AB&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Proceedings available: NTIS, Department of Commerce, 5285 Port Royal Rd., Springfield, VA 22161, Order No. PB-82 173022; Paper copy $39.00 (A24); Fiche $4.00 (A01); Treatment & Incineration Section of Proceedings from L. Staley, IERL, EPA, Cincinnati, OH N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Amenities monitoring for dredged material disposal management AN - 39305145; 3541664 AU - McArthur, C AU - Ferry, R AU - Proni, J R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science KW - U 4300: Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39305145?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Amenities+monitoring+for+dredged+material+disposal+management&rft.au=McArthur%2C+C%3BFerry%2C+R%3BProni%2C+J+R&rft.aulast=McArthur&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Coastal Society, ; email: coastalsoc@aol.com; URL: http://www.oce.orst.edu/mrm/tcs17/confhome.html N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Issues in the management of mercury wastes and waste sites AN - 39304829; 3542736 AU - Anscombe, F AU - Nriagu, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39304829?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Issues+in+the+management+of+mercury+wastes+and+waste+sites&rft.au=Anscombe%2C+F%3BNriagu%2C+J&rft.aulast=Anscombe&rft.aufirst=F&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Michigan, Ann Arbor, MI 48109, USA; phone: 734 764-1817; email: info@umich.edu; URL: http://www.sph.umich.edu/eih/heavymetals/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Studies on in situ bioremediation of PAH-contaminated sediments: Bioavailability, biodegradability, and toxicity issues AN - 39304502; 3523357 AU - Tabak, H H AU - Lazorchak, J W AU - Antia, JE AU - Khodadoust, A AU - Suidan, M T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39304502?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Studies+on+in+situ+bioremediation+of+PAH-contaminated+sediments%3A+Bioavailability%2C+biodegradability%2C+and+toxicity+issues&rft.au=Tabak%2C+H+H%3BLazorchak%2C+J+W%3BAntia%2C+JE%3BKhodadoust%2C+A%3BSuidan%2C+M+T&rft.aulast=Tabak&rft.aufirst=H&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Battelle Press, ; phone: 1-800-451-3543; fax: 614-424-3819; email: press@battelle.org; URL: www.battelle.org/bookstore N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Regulatory perspective, fracturated bedrock technical impracticability case studies, Northern Maine AN - 39255114; 3523484 AU - Brandon, W C AU - Nalipinski, MJ Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39255114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Regulatory+perspective%2C+fracturated+bedrock+technical+impracticability+case+studies%2C+Northern+Maine&rft.au=Brandon%2C+W+C%3BNalipinski%2C+MJ&rft.aulast=Brandon&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Battelle Press, ; phone: 1-800-451-3543; fax: 614-424-3819; email: press@battelle.org; URL: www.battelle.org/bookstore N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Predictions of stream wood recruitment from riparian forests: Effects of data resolution AN - 39248293; 3543385 AU - Ringold, P L AU - Bollman, M AU - Van Sickle, J AU - Barker, J AU - Welty, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300: Environmental Science KW - U 1200: Aquatic Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39248293?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Predictions+of+stream+wood+recruitment+from+riparian+forests%3A+Effects+of+data+resolution&rft.au=Ringold%2C+P+L%3BBollman%2C+M%3BVan+Sickle%2C+J%3BBarker%2C+J%3BWelty%2C+J&rft.aulast=Ringold&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Water Resources Association, 950 Herndon Parkway, Suite 300, Herndon, VA 20170-5531, USA; URL: http://www.awra.org/~awra N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Accelerated solvent extraction of arsenicals from seafood matrices with ion chromatography and ICP-MS detection AN - 39229651; 3533686 AU - Creed, J T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39229651?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Accelerated+solvent+extraction+of+arsenicals+from+seafood+matrices+with+ion+chromatography+and+ICP-MS+detection&rft.au=Creed%2C+J+T&rft.aulast=Creed&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Colorado at Denver, ; phone: (303)556-4520; fax: (303)556-4292; email: as2000@carbon.cudenver.edu; URL: www.cudenver.edu/as2000/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Air deposition and water quality: A pilot total maximum daily load for mercury AN - 39228254; 3541697 AU - Chemerys, R A AU - Waite, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science KW - U 4300: Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39228254?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Air+deposition+and+water+quality%3A+A+pilot+total+maximum+daily+load+for+mercury&rft.au=Chemerys%2C+R+A%3BWaite%2C+R&rft.aulast=Chemerys&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Coastal Society, ; email: coastalsoc@aol.com; URL: http://www.oce.orst.edu/mrm/tcs17/confhome.html N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Field-scale studies on removal of pentachlorophenol from contaminated soil AN - 39223825; 3523253 AU - Allen, H L AU - Lawrence, K AU - Journell, S AU - Wellendorf, W G AU - Harris, KA AU - Miller, T F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39223825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Field-scale+studies+on+removal+of+pentachlorophenol+from+contaminated+soil&rft.au=Allen%2C+H+L%3BLawrence%2C+K%3BJournell%2C+S%3BWellendorf%2C+W+G%3BHarris%2C+KA%3BMiller%2C+T+F&rft.aulast=Allen&rft.aufirst=H&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Battelle Press, ; phone: 1-800-451-3543; fax: 614-424-3819; email: press@battelle.org; URL: www.battelle.org/bookstore N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Buildout on our landscape: The past as prologue AN - 39222566; 3492843 AU - Mountford, K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39222566?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Buildout+on+our+landscape%3A+The+past+as+prologue&rft.au=Mountford%2C+K&rft.aulast=Mountford&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Virginia Institute for Marine Science (VIMS), P.O. Box 1346, Gloucester Point, VA 23062-1346, USA; phone: 804-684-7000; email: webmaster@vims.edu; URL: www.vims.edu, Abstracts available. Contact VIMS for price. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Characterization of riparian vegetation in off-channel habitats and relationships with annual flooding patterns, upper main stem, Willamette River, Oregon, USA AN - 39221687; 3543263 AU - Cline, S AU - McAllister, L AU - Carson, W W AU - Haggerty, P K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300: Environmental Science KW - U 1200: Aquatic Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39221687?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Characterization+of+riparian+vegetation+in+off-channel+habitats+and+relationships+with+annual+flooding+patterns%2C+upper+main+stem%2C+Willamette+River%2C+Oregon%2C+USA&rft.au=Cline%2C+S%3BMcAllister%2C+L%3BCarson%2C+W+W%3BHaggerty%2C+P+K&rft.aulast=Cline&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Water Resources Association, 950 Herndon Parkway, Suite 300, Herndon, VA 20170-5531, USA; URL: http://www.awra.org/~awra. Poster Paper N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Distribution of 2,2-bis(4-chorophenyl)-1,1,dichloroethylene (p,p'-DDE) in fetal rats AN - 39216627; 3524534 AU - Sparrow, B R AU - Devito, MJ Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 4300: Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39216627?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Distribution+of+2%2C2-bis%284-chorophenyl%29-1%2C1%2Cdichloroethylene+%28p%2Cp%27-DDE%29+in+fetal+rats&rft.au=Sparrow%2C+B+R%3BDevito%2C+MJ&rft.aulast=Sparrow&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA; phone: (703) 438-3115; fax: (703) 438-3113; email: sothq@toxicology.org; URL: www.toxicology.org N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Gavage vehicle and volume modulation of chloroform-induced hepatotoxicity in mice AN - 39216119; 3524660 AU - Sey, YA AU - McDonald, A AU - Simmons, JE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 4300: Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39216119?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Gavage+vehicle+and+volume+modulation+of+chloroform-induced+hepatotoxicity+in+mice&rft.au=Sey%2C+YA%3BMcDonald%2C+A%3BSimmons%2C+JE&rft.aulast=Sey&rft.aufirst=YA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA; phone: (703) 438-3115; fax: (703) 438-3113; email: sothq@toxicology.org; URL: www.toxicology.org N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Growth and changes in biochemical composition during larval development of the Stone Crab, Menippe adina (Williams and Felder, 1986) AN - 39216034; 3521935 AU - Nates, S F AU - McKenney, CL Jr Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39216034?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Growth+and+changes+in+biochemical+composition+during+larval+development+of+the+Stone+Crab%2C+Menippe+adina+%28Williams+and+Felder%2C+1986%29&rft.au=Nates%2C+S+F%3BMcKenney%2C+CL+Jr&rft.aulast=Nates&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society for Integrative and Comparative Biology, 401 N. Michigan Ave., Chicago, IL 60611-4267, USA; URL: www.scib.org N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Guiding principles for constructed treatment wetlands AN - 39200909; 3511934 AU - Bastian, R K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39200909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Guiding+principles+for+constructed+treatment+wetlands&rft.au=Bastian%2C+R+K&rft.aulast=Bastian&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Wetlands for Wastewater, P.O. Box P, St. Michaels, MD 21663, USA; email: order@wetland.org; URL: www.wetland.org, Abstracts available. Price $25 plus S/H. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Role of AH receptor on hepatic sequestration and disposition of dioxin - Studies using the AH receptor-knockout mice AN - 39194775; 3524533 AU - Dileberto, J J AU - Abbott, B D AU - Birnbaum, L S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 4300: Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39194775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Role+of+AH+receptor+on+hepatic+sequestration+and+disposition+of+dioxin+-+Studies+using+the+AH+receptor-knockout+mice&rft.au=Dileberto%2C+J+J%3BAbbott%2C+B+D%3BBirnbaum%2C+L+S&rft.aulast=Dileberto&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA; phone: (703) 438-3115; fax: (703) 438-3113; email: sothq@toxicology.org; URL: www.toxicology.org N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Sex-linked changes in phase I biotransformation of phenol in brook trout over an annual reproductive cycle AN - 39191378; 3526073 AU - Kolanczyk, R C AU - Solem, LE AU - Hoffman, AD AU - Schmieder, P K AU - McKim, J M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 4300: Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39191378?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Sex-linked+changes+in+phase+I+biotransformation+of+phenol+in+brook+trout+over+an+annual+reproductive+cycle&rft.au=Kolanczyk%2C+R+C%3BSolem%2C+LE%3BHoffman%2C+AD%3BSchmieder%2C+P+K%3BMcKim%2C+J+M&rft.aulast=Kolanczyk&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA; phone: (703) 438-3115; fax: (703) 438-3113; email: sothq@toxicology.org; URL: www.toxicology.org N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Clean water action plan - A different approach for managing the threats of non-point sources to habitat AN - 39189778; 3510460 AU - Reid, B H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39189778?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Clean+water+action+plan+-+A+different+approach+for+managing+the+threats+of+non-point+sources+to+habitat&rft.au=Reid%2C+B+H&rft.aulast=Reid&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Water Resources Association, 4 West Federal Street, P.O. Box 1626, Middleburg, VA 20118-1626, USA; URL: http://www.awra.org/~awra, Abstracts available. Contact AWRA for price. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Gestational exposure of long evans rats to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) leads to stunted mammary epithelial development in female offspring AN - 39187741; 3525479 AU - Youngblood, G L AU - Hamm, J T AU - Birnbaum, L S AU - Fenton, SE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 4300: Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39187741?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Gestational+exposure+of+long+evans+rats+to+2%2C3%2C7%2C8-tetrachlorodibenzo-p-dioxin+%28TCDD%29+leads+to+stunted+mammary+epithelial+development+in+female+offspring&rft.au=Youngblood%2C+G+L%3BHamm%2C+J+T%3BBirnbaum%2C+L+S%3BFenton%2C+SE&rft.aulast=Youngblood&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA; phone: (703) 438-3115; fax: (703) 438-3113; email: sothq@toxicology.org; URL: www.toxicology.org N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Human interindividual variability in the expression of cytochrome p450 forms critical to xenobiotic metabolism AN - 39186364; 3525394 AU - Lipscomb, J C AU - Striley, CAF AU - Snawder, JE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 4300: Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39186364?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Human+interindividual+variability+in+the+expression+of+cytochrome+p450+forms+critical+to+xenobiotic+metabolism&rft.au=Lipscomb%2C+J+C%3BStriley%2C+CAF%3BSnawder%2C+JE&rft.aulast=Lipscomb&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA; phone: (703) 438-3115; fax: (703) 438-3113; email: sothq@toxicology.org; URL: www.toxicology.org N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Upper Missouri River environmental monitoring and assessment program (EMAP-UMR) AN - 39185405; 3539616 AU - Angradi, T AU - Bolgrien, D AU - Carlson, A AU - Kelly, J AU - Scharold, J AU - Schweiger, B AU - Thompson, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39185405?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Upper+Missouri+River+environmental+monitoring+and+assessment+program+%28EMAP-UMR%29&rft.au=Angradi%2C+T%3BBolgrien%2C+D%3BCarlson%2C+A%3BKelly%2C+J%3BScharold%2C+J%3BSchweiger%2C+B%3BThompson%2C+J&rft.aulast=Angradi&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: North American Benthological Society, 1041 New Hampshire Street, Lawrence, Kansas 66044, USA; URL: http://www.benthos.org/meeting/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Evidence for dose additivity of chloroform (CHC13) and bromodichloromethane (BDCM) in mice AN - 39184680; 3525199 AU - Simmons, JE AU - Gennings, C AU - Teuschler, L K AU - Sey, Y M AU - McDonald, A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 4300: Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39184680?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Evidence+for+dose+additivity+of+chloroform+%28CHC13%29+and+bromodichloromethane+%28BDCM%29+in+mice&rft.au=Simmons%2C+JE%3BGennings%2C+C%3BTeuschler%2C+L+K%3BSey%2C+Y+M%3BMcDonald%2C+A&rft.aulast=Simmons&rft.aufirst=JE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA; phone: (703) 438-3115; fax: (703) 438-3113; email: sothq@toxicology.org; URL: www.toxicology.org N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Mistakes, misinterpretations and mayhem/generalized stories about acid mine drainage AN - 39184183; 3514603 AU - Russell, C C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39184183?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Mistakes%2C+misinterpretations+and+mayhem%2Fgeneralized+stories+about+acid+mine+drainage&rft.au=Russell%2C+C+C&rft.aulast=Russell&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Perchlorate uptake in leafy vegetation from fertilizer and irrigation water AN - 39183429; 3522690 AU - Hutchinson, S L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience KW - U 4300: Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39183429?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Perchlorate+uptake+in+leafy+vegetation+from+fertilizer+and+irrigation+water&rft.au=Hutchinson%2C+S+L&rft.aulast=Hutchinson&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Association for the Environmental Health of Soils, 150 Fearing St, Amherst, MA 01002, USA; URL: www.aehs.com N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Protection of endangered species in a harsh and highly manipulated environment, California's bay/delta AN - 39179148; 3510467 AU - Herbold, B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39179148?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Protection+of+endangered+species+in+a+harsh+and+highly+manipulated+environment%2C+California%27s+bay%2Fdelta&rft.au=Herbold%2C+B&rft.aulast=Herbold&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Water Resources Association, 4 West Federal Street, P.O. Box 1626, Middleburg, VA 20118-1626, USA; URL: http://www.awra.org/~awra, Abstracts available. Contact AWRA for price. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Integration of the clean water action plan with state and local efforts in Washington state AN - 39178357; 3510459 AU - Hersh, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39178357?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Integration+of+the+clean+water+action+plan+with+state+and+local+efforts+in+Washington+state&rft.au=Hersh%2C+M&rft.aulast=Hersh&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Water Resources Association, 4 West Federal Street, P.O. Box 1626, Middleburg, VA 20118-1626, USA; URL: http://www.awra.org/~awra, Abstracts available. Contact AWRA for price. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Water pollution and health effects in China AN - 39171075; 3517459 AU - Schwengels, P AU - Cropper, M AU - Wang, Y Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39171075?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Water+pollution+and+health+effects+in+China&rft.au=Schwengels%2C+P%3BCropper%2C+M%3BWang%2C+Y&rft.aulast=Schwengels&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Association for the Advancement of Science, 1333 H St., NW, 8th Floor, Washington, DC 20005, USA; URL: www.aaas.org, Titles are taken from selected sections of the larger conference. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Geography as framework for displaying water resources data AN - 39159934; 3510538 AU - Dabolt, T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39159934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Geography+as+framework+for+displaying+water+resources+data&rft.au=Dabolt%2C+T&rft.aulast=Dabolt&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Water Resources Association, 4 West Federal Street, P.O. Box 1626, Middleburg, VA 20118-1626, USA; URL: http://www.awra.org/~awra, Abstracts available. Contact AWRA for price. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Arsenic species cause release of iron from ferritin generating activated oxygen AN - 39159529; 3516986 AU - Ahmad, S AU - Kitchin, K T AU - Cullen, W R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39159529?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Arsenic+species+cause+release+of+iron+from+ferritin+generating+activated+oxygen&rft.au=Ahmad%2C+S%3BKitchin%2C+K+T%3BCullen%2C+W+R&rft.aulast=Ahmad&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Elsevier Science, Inc., 655 Avenue of the Americas, New York, NY 10010-5107; phone: 212-633-3730; fax: 212-633-3680; email: usinfo-f@elsevier.com; URL: www.elsevier.com, Full Abstracts Available. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Risk assessment of drinking water disinfection by- products (DBPs): Use of structure-activity relationships (SAR) analysis in ranking of carcinogenic potential and prioritization for testing AN - 39156990; 3526304 AU - Woo, Y AU - Lai, D Y AU - Manibusan, M K AU - McLain, J L AU - Dellarco, V L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 4300: Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39156990?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Risk+assessment+of+drinking+water+disinfection+by-+products+%28DBPs%29%3A+Use+of+structure-activity+relationships+%28SAR%29+analysis+in+ranking+of+carcinogenic+potential+and+prioritization+for+testing&rft.au=Woo%2C+Y%3BLai%2C+D+Y%3BManibusan%2C+M+K%3BMcLain%2C+J+L%3BDellarco%2C+V+L&rft.aulast=Woo&rft.aufirst=Y&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA; phone: (703) 438-3115; fax: (703) 438-3113; email: sothq@toxicology.org; URL: www.toxicology.org N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Response of human airway epithelial cells treated with diesel particulates in vitro will vary according to the composition of the particulates AN - 39155951; 3525963 AU - Dailey, LA AU - Harris, D B AU - Madden, M C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 4300: Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39155951?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Response+of+human+airway+epithelial+cells+treated+with+diesel+particulates+in+vitro+will+vary+according+to+the+composition+of+the+particulates&rft.au=Dailey%2C+LA%3BHarris%2C+D+B%3BMadden%2C+M+C&rft.aulast=Dailey&rft.aufirst=LA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Society of Toxicology, 1767 Business Center Drive, Suite 302, Reston, VA 20190-5332, USA; phone: (703) 438-3115; fax: (703) 438-3113; email: sothq@toxicology.org; URL: www.toxicology.org N1 - Last updated - 2011-10-26 ER - TY - JOUR T1 - Mutagenicity in lung of big Blue((R)) mice and induction of tandem-base substitutions in Salmonella by the air pollutant peroxyacetyl nitrate (PAN): predicted formation of intrastrand cross-links. AN - 72467121; 11106797 AB - Peroxyacetyl nitrate (PAN) is a ubiquitous air pollutant formed from NO(2) reacting with acetoxy radicals generated from ambient aldehydes in the presence of sunlight and ozone. It contributes to eye irritation associated with photochemical smog and is present in most urban air. PAN was generated in a chamber containing open petri dishes of Salmonella TA100 (gas-phase exposure). After subtraction of the background mutation spectrum, the spectrum of PAN-induced mutants selected at 3.1-fold above the background mutant yield was 59% GC-->TA, 29% GC-->AT, 2% GC-->CG, and 10% multiple mutations - primarily GG-->TT tandem-base substitutions. Using computational molecular modeling methods, a mechanism was developed for producing this unusual tandem-base substitution. The mechanism depends on the protonation of PAN near the polyanionic DNA to release NO(2)(+) resulting in intrastrand dimer formation. Insertion of AA opposite the dimerized GG would account for the tandem GG-->TT transversions. Nose-only exposure of Big Blue((R)) mice to PAN at 78ppm (near the MTD) was mutagenic at the lacI gene in the lung (mutant frequency +/-S.E. of 6.16+/-0.58/10(5) for controls versus 8.24+/-0.30/10(5) for PAN, P=0.016). No tandem-base mutations were detected among the 40 lacI mutants sequenced. Dosimetry with 3H-PAN showed that 24h after exposure, 3.9% of the radiolabel was in the nasal tissue, and only 0.3% was in the lung. However, based on the molecular modeling considerations, the labeled portion of the molecule would not have been expected to have been bound covalently to DNA. Our results indicate that PAN is weakly mutagenic in the lungs of mice and in Salmonella and that PAN produces a unique signature mutation (a tandem GG-->TT transversion) in Salmonella that is likely due to a GG intrastrand cross-link. Thus, PAN may pose a mutagenic and possible carcinogenic risk to humans, especially at the high concentrations at which it is present in some urban environments. JF - Mutation research AU - DeMarini, D M AU - Shelton, M L AU - Kohan, M J AU - Hudgens, E E AU - Kleindienst, T E AU - Ball, L M AU - Walsh, D AU - de Boer, J G AU - Lewis-Bevan, L AU - Rabinowitz, J R AU - Claxton, L D AU - Lewtas, J AD - National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, 27711, Research Triangle Park, NC, USA. demarini.david@epa.gov Y1 - 2000/12/20/ PY - 2000 DA - 2000 Dec 20 SP - 41 EP - 55 VL - 457 IS - 1-2 SN - 0027-5107, 0027-5107 KW - Air Pollutants KW - 0 KW - Cross-Linking Reagents KW - Mutagens KW - DNA KW - 9007-49-2 KW - Peracetic Acid KW - I6KPI2E1HD KW - peroxyacetyl nitrate KW - SQ8V0P4N89 KW - Index Medicus KW - Base Pairing KW - Animals KW - Base Sequence KW - Dose-Response Relationship, Drug KW - DNA Damage KW - Cross-Linking Reagents -- administration & dosage KW - Cross-Linking Reagents -- toxicity KW - Molecular Sequence Data KW - Salmonella typhimurium -- drug effects KW - Mice KW - Mice, Transgenic KW - Salmonella typhimurium -- genetics KW - Male KW - Peracetic Acid -- toxicity KW - DNA -- genetics KW - Peracetic Acid -- analogs & derivatives KW - Lung -- drug effects KW - Mutagens -- toxicity KW - DNA -- chemistry KW - Peracetic Acid -- administration & dosage KW - Mutagens -- administration & dosage KW - Air Pollutants -- toxicity KW - DNA -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72467121?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+research&rft.atitle=Mutagenicity+in+lung+of+big+Blue%28%28R%29%29+mice+and+induction+of+tandem-base+substitutions+in+Salmonella+by+the+air+pollutant+peroxyacetyl+nitrate+%28PAN%29%3A+predicted+formation+of+intrastrand+cross-links.&rft.au=DeMarini%2C+D+M%3BShelton%2C+M+L%3BKohan%2C+M+J%3BHudgens%2C+E+E%3BKleindienst%2C+T+E%3BBall%2C+L+M%3BWalsh%2C+D%3Bde+Boer%2C+J+G%3BLewis-Bevan%2C+L%3BRabinowitz%2C+J+R%3BClaxton%2C+L+D%3BLewtas%2C+J&rft.aulast=DeMarini&rft.aufirst=D&rft.date=2000-12-20&rft.volume=457&rft.issue=1-2&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Mutation+research&rft.issn=00275107&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-02-08 N1 - Date created - 2001-02-05 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Mutagenicity in lung of Big Blue super( registered ) mice and induction of tandem-base substitutions in Salmonella by the air pollutant peroxyacetyl nitrate (PAN): predicted formation of intrastrand cross-links AN - 17732035; 4806713 AB - Peroxyacetyl nitrate (PAN) is a ubiquitous air pollutant formed from NO sub(2) reacting with acetoxy radicals generated from ambient aldehydes in the presence of sunlight and ozone. It contributes to eye irritation associated with photochemical smog and is present in most urban air. PAN was generated in a chamber containing open petri dishes of Salmonella TA100 (gas-phase exposure). After subtraction of the background mutation spectrum, the spectrum of PAN-induced mutants selected at 3.1-fold above the background mutant yield was 59% GC arrow right TA , 29% GC arrow right AT , 2% GC arrow right CG , and 10% multiple mutations -- primarily GG arrow right TT tandem-base substitutions. Using computational molecular modeling methods, a mechanism was developed for producing this unusual tandem-base substitution. The mechanism depends on the protonation of PAN near the polyanionic DNA to release NO sub(2) super(+) resulting in intrastrand dimer formation. Insertion of AA opposite the dimerized GG would account for the tandem GG arrow right TT transversions. Nose-only exposure of Big Blue super( registered ) mice to PAN at 78 ppm (near the MTD) was mutagenic at the lacI gene in the lung (mutant frequency plus or minus S.E. of 6.16 plus or minus 0.58 /10 super(5) for controls versus 8.24 plus or minus 0.30 /10 super(5) for PAN, P=0.016 ). No tandem-base mutations were detected among the 40 lacI mutants sequenced. Dosimetry with super(3) H -PAN showed that 24 h after exposure, 3.9% of the radiolabel was in the nasal tissue, and only 0.3% was in the lung. However, based on the molecular modeling considerations, the labeled portion of the molecule would not have been expected to have been bound covalently to DNA. Our results indicate that PAN is weakly mutagenic in the lungs of mice and in Salmonella and that PAN produces a unique signature mutation (a tandem GG arrow right TT transversion) in Salmonella that is likely due to a GG intrastrand cross-link. Thus, PAN may pose a mutagenic and possible carcinogenic risk to humans, especially at the high concentrations at which it is present in some urban environments. JF - Mutation Research AU - DeMarini, D M AU - Shelton, M L AU - Kohan, MJ AU - Hudgens, EE AU - Kleindienst, TE AU - Ball, L M AU - Walsh, D AU - de Boer, JG AU - Lewis-Bevan, L AU - Rabinowitz, J R AU - Claxton, L D AU - Lewtas, J AD - National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, 27711 Research Triangle Park, NC USA Y1 - 2000/12/20/ PY - 2000 DA - 2000 Dec 20 SP - 41 EP - 55 PB - Elsevier VL - 457 IS - 1-2 SN - 0027-5107, 0027-5107 KW - base substitution KW - transversion KW - peroxyacetyl nitrate KW - Genetics Abstracts; Toxicology Abstracts KW - Mutagenicity testing KW - Air pollution KW - Cross-linking KW - Lung KW - Sunlight KW - Smog KW - Salmonella KW - Ozone KW - X 24240:Miscellaneous KW - G 07221:Specific chemicals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17732035?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+Research&rft.atitle=Mutagenicity+in+lung+of+Big+Blue+super%28+registered+%29+mice+and+induction+of+tandem-base+substitutions+in+Salmonella+by+the+air+pollutant+peroxyacetyl+nitrate+%28PAN%29%3A+predicted+formation+of+intrastrand+cross-links&rft.au=DeMarini%2C+D+M%3BShelton%2C+M+L%3BKohan%2C+MJ%3BHudgens%2C+EE%3BKleindienst%2C+TE%3BBall%2C+L+M%3BWalsh%2C+D%3Bde+Boer%2C+JG%3BLewis-Bevan%2C+L%3BRabinowitz%2C+J+R%3BClaxton%2C+L+D%3BLewtas%2C+J&rft.aulast=DeMarini&rft.aufirst=D&rft.date=2000-12-20&rft.volume=457&rft.issue=1-2&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Mutation+Research&rft.issn=00275107&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella; Lung; Smog; Air pollution; Sunlight; Ozone; Cross-linking; Mutagenicity testing ER - TY - JOUR T1 - Methane emission from a simulated rice field ecosystem as influenced by hydroquinone and dicyandiamide. AN - 72515834; 11194158 AB - A simple apparatus for collecting methane emission from a simulated rice field ecosystem was formed. With no wheat straw powder amended all treatments with inhibitor(s) had so much lower methane emission during rice growth than the treatment with urea alone (control), which was contrary to methane emission from the cut rice-soil system. Especially for treatments with dicyandiamide (DCD) and with DCD plus hydroquinone (HQ), the total amount of methane emission from the soil system and intact rice-soil system was 68.25-46.64% and 46.89-41.78% of the control, respectively. Hence, DCD, especially in combination with HQ, not only increased methane oxidation in the floodwater-soil interface following application of urea, but also significantly enhanced methane oxidation in rice root rhizosphere, particularly from its tillering to booting stage. Wheat straw powder incorporated into flooded surface layer soil significantly weakened the above-mentioned simulating effects. Regression analysis indicated that methane emission from the rice field ecosystem was related to the turnover of ammonium-N in flooded surface layer soil. Diminishing methane emissions from the rice field ecosystem was significantly beneficial to the growth of rice. JF - The Science of the total environment AU - Xu, X AU - Wang, Y AU - Zheng, X AU - Wang, M AU - Wang, Z AU - Zhou, L AU - Van Cleemput, O AD - SKLEAC, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences and National Environmental Protection Agency, Beijing, PR China. xingkai_xu@hotmail.com Y1 - 2000/12/18/ PY - 2000 DA - 2000 Dec 18 SP - 243 EP - 253 VL - 263 IS - 1-3 SN - 0048-9697, 0048-9697 KW - Air Pollutants KW - 0 KW - Antioxidants KW - Guanidines KW - Hydroquinones KW - dicyandiamido KW - M9B1R0C16H KW - Methane KW - OP0UW79H66 KW - hydroquinone KW - XV74C1N1AE KW - Index Medicus KW - Agriculture KW - Antioxidants -- metabolism KW - Hydroquinones -- metabolism KW - Guanidines -- metabolism KW - Air Pollutants -- pharmacokinetics KW - Oryza KW - Methane -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72515834?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Methane+emission+from+a+simulated+rice+field+ecosystem+as+influenced+by+hydroquinone+and+dicyandiamide.&rft.au=Xu%2C+X%3BWang%2C+Y%3BZheng%2C+X%3BWang%2C+M%3BWang%2C+Z%3BZhou%2C+L%3BVan+Cleemput%2C+O&rft.aulast=Xu&rft.aufirst=X&rft.date=2000-12-18&rft.volume=263&rft.issue=1-3&rft.spage=243&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-02-15 N1 - Date created - 2001-01-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The ecological risks and benefits of genetically engineered plants. AN - 72473923; 11118136 AB - Discussions of the environmental risks and benefits of adopting genetically engineered organisms are highly polarized between pro- and anti-biotechnology groups, but the current state of our knowledge is frequently overlooked in this debate. A review of existing scientific literature reveals that key experiments on both the environmental risks and benefits are lacking. The complexity of ecological systems presents considerable challenges for experiments to assess the risks and benefits and inevitable uncertainties of genetically engineered plants. Collectively, existing studies emphasize that these can vary spatially, temporally, and according to the trait and cultivar modified. JF - Science (New York, N.Y.) AU - Wolfenbarger, L L AU - Phifer, P R AD - AAAS Environmental Fellow, U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment, 1200 Pennsylvania Avenue, NW (8601D), Washington, DC 20460, USA. wolfenbarger.lareesa@epa.gov Y1 - 2000/12/15/ PY - 2000 DA - 2000 Dec 15 SP - 2088 EP - 2093 VL - 290 IS - 5499 SN - 0036-8075, 0036-8075 KW - Pesticides KW - 0 KW - Soil KW - Index Medicus KW - Risk KW - Animals KW - Transgenes KW - Genes, Plant KW - Reproduction KW - Plant Diseases KW - Ecosystem KW - Agriculture KW - Genetic Engineering KW - Plants, Genetically Modified -- physiology KW - Plants, Genetically Modified -- genetics KW - Plants -- genetics KW - Crops, Agricultural -- physiology KW - Crops, Agricultural -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72473923?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28New+York%2C+N.Y.%29&rft.atitle=The+ecological+risks+and+benefits+of+genetically+engineered+plants.&rft.au=Wolfenbarger%2C+L+L%3BPhifer%2C+P+R&rft.aulast=Wolfenbarger&rft.aufirst=L&rft.date=2000-12-15&rft.volume=290&rft.issue=5499&rft.spage=2088&rft.isbn=&rft.btitle=&rft.title=Science+%28New+York%2C+N.Y.%29&rft.issn=00368075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-01-11 N1 - Date created - 2000-12-20 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Comment In: Science. 2001 Apr 27;292(5517):638-9 [11330317] Science. 2001 Apr 27;292(5517):637-8 [11330316] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Morphologic Analysis Correlates with Gene Expression Changes in Cultured F344 Rat Mesothelial Cells AN - 17740897; 4809795 AB - The gene expression pattern of mesothelial cells in vitro was determined after 4 or 12 h exposure to the rat mesothelial, kidney, and thyroid carcinogen and oxidative stressor potassium bromate (KBrO sub(3)). Gene expression changes observed using cDNA arrays indicated oxidative stress, mitotic arrest, and apoptosis in treated immortalized rat peritoneal mesothelial cells. Increases occurred in oxidative stress responsive genes HO-1, QR, HSP70, GADD45, GADD153, p21 super(WAF1/CIP16), GST's, GAPDH, TPX, and GPX-1 super(0); transcriptional regulators c-jun, c-fos, jun B, c-myc, and I Kappa B; protein repair components R delta , RC10-II, C3, RC-7, HR6B ubiquitin-conjugating enzyme and ubiquitin; DNA repair components PCNA, msh2, and O-6 methylguanine DNA methyltransferase; lipid peroxide excision enzyme PLA2; and apoptogenic components TNF alpha , iNOS1 and FasL. Decreases occurred in bcl-2 (antiapoptotic), bax alpha , bad, and bok (proapoptotic) and cell cycle control elements (cyclins). Cyclin G and p14ink4b (which inhibit entry into cell cycle) were increased. Numerous signal transduction, cell membrane transport, membrane-associated receptor, and fatty acid biosynthesis and repair components were altered. Morphologic endpoints examined were number of mitotic figures, number of apoptotic cells, and antibody-specific localization of HO-1 (which demonstrated increased HO-1 protein expression). PCR analysis confirmed HO-1, p21 super(waf1/cip1), HSP70, GPX1, GADD45, QR, mdr1, PGHS, and cyclin D1 changes. A model for KBrO sub(3)-induced carcinogenicity in the F344 rat mesothelium is proposed, whereby KBrO sub(3) generates a redox signal that activates p53 and results in transcriptional activation of oxidative stress and repair genes, dysregulation of growth control, and imperfect DNA repair leading to carcinogenesis. Copyright 2000 Academic Press. JF - Toxicology and Applied Pharmacology AU - Crosby, L M AU - Hyder, K S AU - DeAngelo, AB AU - Kepler, T B AU - Gaskill, B AU - Benavides, G R AU - Yoon, L AU - Morgan, K T AD - Curriculum in Toxicology/U.S. EPA NHEERL, University of North Carolina at Chapel Hill, Research Triangle Park, 27711, North Carolina Y1 - 2000/12/15/ PY - 2000 DA - 2000 Dec 15 SP - 205 EP - 221 PB - Academic Press VL - 169 IS - 3 SN - 0041-008X, 0041-008X KW - rats KW - morphology KW - potassium bromate KW - Toxicology Abstracts KW - Gene expression KW - Oncogenes KW - Mesothelium KW - Oxidative stress KW - Carcinogenesis KW - DNA repair KW - Signal transduction KW - X 24155:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17740897?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+and+Applied+Pharmacology&rft.atitle=Morphologic+Analysis+Correlates+with+Gene+Expression+Changes+in+Cultured+F344+Rat+Mesothelial+Cells&rft.au=Crosby%2C+L+M%3BHyder%2C+K+S%3BDeAngelo%2C+AB%3BKepler%2C+T+B%3BGaskill%2C+B%3BBenavides%2C+G+R%3BYoon%2C+L%3BMorgan%2C+K+T&rft.aulast=Crosby&rft.aufirst=L&rft.date=2000-12-15&rft.volume=169&rft.issue=3&rft.spage=205&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+Applied+Pharmacology&rft.issn=0041008X&rft_id=info:doi/10.1006%2Ftaap.2000.9049 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Oxidative stress; Mesothelium; Carcinogenesis; Gene expression; Oncogenes; Signal transduction; DNA repair DO - http://dx.doi.org/10.1006/taap.2000.9049 ER - TY - JOUR T1 - Sensitivity of the SRBC PFC assay versus ELISA for detection of immunosuppression by TCDD and TCDD-like congeners AN - 17774214; 4828705 AB - The splenic antibody plaque forming cell (PFC) assay is a widely used assay in immunotoxicity testing. A recent revision of the Federal Insecticide, Fungicide and Rodenticide (FIFRA) Immunotoxicity test guidelines by the EPA recommended that either the PFC assay or the sheep red blood cell (SRBC) specific serum IgM enzyme-linked immunosorbent assay (ELISA) be used to assess the primary humoral response to SRBCs. The PFC assay quantifies the number of plasma cells in the spleen producing SRBC-specific antibody, while the ELISA measures SRBC-specific IgM antibody in the serum. Because these two assays measure different endpoints, there is a need for comparison of their sensitivity and reliability. The purpose of this project was to determine if these two assays are equally sensitive to suppression of the SRBC response in B6C3F1 female mice. Female B6C3F1 mice were given a single oral exposure to different doses of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) or four TCDD-like congeners. One week later, two sets of mice were immunized with SRBC. The first set was evaluated for the PFC response and the second for the ELISA response, on day 4 or 5 post-immunization, respectively. The four TCDD-like congeners tested were: 1,2,3,7,8-pentachlorodibenzo-p-dioxin (PeCDD), 1,2,3,4,7-pentachlorodibenzofuran (4PeCDF), 3,3',4,4',5-pentachlorobiphenyl (PCB126) and 2,3',4,4',5-pentachlrorbiphenyl (PCB118). The results were used to generate dose-response curves for the determination of the ED sub(50) for TCDD and each TCDD-like congener. For all chemicals tested, measuring the level of SRBC-specific IgM antibody by ELISA was more sensitive than the PFC assay to detect immunosuppression, as indicated by lower ED sub(50) values. These results indicate that the SRBC-specific IgM ELISA is a more sensitive assay for detecting the T-cell mediated immunotoxicity of dioxin-like chemicals in this rodent model. JF - Toxicology AU - Johnson, C W AU - Williams, W C AU - Copeland, C B AU - DeVito, MJ AU - Smialowicz, R J AD - Experimental Toxicology Division, National Health and Environmental Effects, Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA, smialowicz.ralph@epa.gov Y1 - 2000/12/07/ PY - 2000 DA - 2000 Dec 07 SP - 1 EP - 11 VL - 156 IS - 1 SN - 0300-483X, 0300-483X KW - mice KW - Toxicology Abstracts KW - Enzyme-linked immunosorbent assay KW - TCDD KW - Immunoglobulin M KW - Immunosuppression KW - X 24222:Analytical procedures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17774214?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology&rft.atitle=Sensitivity+of+the+SRBC+PFC+assay+versus+ELISA+for+detection+of+immunosuppression+by+TCDD+and+TCDD-like+congeners&rft.au=Johnson%2C+C+W%3BWilliams%2C+W+C%3BCopeland%2C+C+B%3BDeVito%2C+MJ%3BSmialowicz%2C+R+J&rft.aulast=Johnson&rft.aufirst=C&rft.date=2000-12-07&rft.volume=156&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Toxicology&rft.issn=0300483X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - TCDD; Enzyme-linked immunosorbent assay; Immunoglobulin M; Immunosuppression ER - TY - JOUR T1 - Age-dependent effects of Aroclor 1254 super(R) on calcium uptake by subcellular organelles in selected brain regions of rats AN - 17770353; 4828706 AB - Earlier reports from our laboratory have indicated that polychlorinated biphenyls (PCBs) affect signal transduction mechanisms in brain, including Ca super(2+) homeostasis, phosphoinositol hydrolysis, and protein kinase C (PKC) translocation in mature neurons and adult brain homogenate preparations. Present studies were designed to investigate whether there were any brain region-, gender-, or age-dependent effects of PCBs on super(45)Ca super(2+)-uptake by two subcellular organelles, microsomes and mitochondria. We have studied in vitro effects of a widely studied commercial PCB mixture, Aroclor 1254 super(R), on super(45)Ca super(2+)-uptake by microsomes and mitochondria in cerebellum, frontal cortex and hippocampus of postnatal day (PND) 7, 21, and 90-120 (adult) male and female Long-Evans (LE)-rats. In general, microsomal and mitochondrial super(45)Ca super(2+)-uptake in selected brain regions increased with age; PND 7 < PND 21 less than or equal to adults. Among three brain regions, hippocampus had relatively lower microsomal super(45)Ca super(2+)-uptake than cerebellum and frontal cortex throughout the development. Mitochondrial super(45)Ca super(2+)-uptake was comparable in three brain regions of PND 7 and adult animals, but in PND 21 rats, the cerebellum had much higher activity than frontal cortex and hippocampus. No gender-related differences were seen in super(45)Ca super(2+)-uptake by either microsomes or mitochondria in selected brain regions throughout development. Inhibition of super(45)Ca super(2+)-uptake by Aroclor 1254 in a concentration-dependent manner was observed throughout the study. However, the degree of inhibition of microsomal super(45)Ca super(2+)-uptake in these brain regions by Aroclor 1254 increased with age, PND 7 < PND 21 less than or equal to adults (IC sub(50)S = 21-34, 8-20 and 10-14 mu M, respectively). Brain region-specific differential sensitivity to Aroclor 1254 on the inhibition of microsomal super(45)Ca super(2+) -uptake was not seen in PND 7 and adult animals but in PND 21 rats, hippocampus was more sensitive than the other selected brain regions. There were no age-, gender- or brain region-specific differential effects of Aroclor 1254 on mitochondrial super(45)Ca super(2+)-uptake. These results indicate that a commercial PCB mixture, Aroclor 1254, inhibited super(45)Ca super(2+) -uptake by both microsomes and mitochondria uniformly in selected brain regions of males and females during development. However, the inhibition of microsomal super(45)Ca super(2+)-uptake by Aroclor 1254 increased with age. The age- and gender-related differential sensitivity to Aroclor 1254 may be attributed to the changes in calcium homeostasis in various brain regions during development. JF - Toxicology AU - Sharma, R AU - Derr-Yellin, E C AU - House, DE AU - Kodavanti, PRS AD - Cellular and Molecular Toxicology Branch, Neurotoxicology Division, MD 74B, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA, kodavanti.prasada@epa.gov Y1 - 2000/12/07/ PY - 2000 DA - 2000 Dec 07 SP - 13 EP - 25 VL - 156 IS - 1 SN - 0300-483X, 0300-483X KW - rats KW - Calcium & Calcified Tissue Abstracts; Toxicology Abstracts KW - Calcium homeostasis KW - Microsomes KW - Age KW - Brain KW - Mitochondria KW - Aroclor KW - Organelles KW - PCB KW - X 24155:Biochemistry KW - T 20019:Cellular calcium, channels and currents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17770353?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology&rft.atitle=Age-dependent+effects+of+Aroclor+1254+super%28R%29+on+calcium+uptake+by+subcellular+organelles+in+selected+brain+regions+of+rats&rft.au=Sharma%2C+R%3BDerr-Yellin%2C+E+C%3BHouse%2C+DE%3BKodavanti%2C+PRS&rft.aulast=Sharma&rft.aufirst=R&rft.date=2000-12-07&rft.volume=156&rft.issue=1&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Toxicology&rft.issn=0300483X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Calcium homeostasis; Age; Aroclor; PCB; Brain; Organelles; Microsomes; Mitochondria ER - TY - JOUR T1 - Uptake and phytotransformation of o,p'-DDT and p,p'-DDT by axenically cultivated aquatic plants. AN - 72594740; 11312785 AB - The uptake and phytotransformation of o,p'-DDT and p,p'-DDT were investigated in vitro using three axenically cultivated aquatic plants: parrot feather (Myriophyllum aquaticum), duckweed (Spirodela oligorrhiza), and elodea (Elodea canadensis). The decay profile of DDT from the aqueous culture medium followed first-order kinetics for all three plants. During the 6-day incubation period, almost all of the DDT was removed from the medium, and most of it accumulated in or was transformed by these plants. Duckweed demonstrated the greatest potential to transform both DDT isomers; 50-66% was degraded or bound in a nonextractable manner with the plant material after the 6-day incubation. Therefore, duckweed also incorporated less extractable DDT (32-49%) after 6 days than did the other plants. The capacity for phytotransformation/binding by elodea is between that of duckweed and parrot feather; approximately 31-48% of the spiked DDT was degraded or bound to the elodea plant material. o,p'-DDD and p,p'-DDD are the major metabolites in these plants; small amounts of p,p'-DDE were also found in duckweed (7.9%) and elodea (4.6%) after 6 days. Apparently, reduction of the aliphatic chlorine atoms of DDT is the major pathway for this transformation. This study, which provides new information on plant biochemistry as related to pollutant accumulation and phytotransformation, should advance the development of phytoremediation processes. JF - Journal of agricultural and food chemistry AU - Gao, J AU - Garrison, A W AU - Hoehamer, C AU - Mazur, C S AU - Wolfe, N L AD - National Exposure Research Laboratory, U.S. Environmental Protection Agency, 960 College Station Road, Athens, Georgia 30605, USA. Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 6121 EP - 6127 VL - 48 IS - 12 SN - 0021-8561, 0021-8561 KW - Pesticide Residues KW - 0 KW - DDT KW - CIW5S16655 KW - Index Medicus KW - Biotransformation KW - Pesticide Residues -- metabolism KW - Time Factors KW - Plants -- metabolism KW - DDT -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72594740?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+agricultural+and+food+chemistry&rft.atitle=Uptake+and+phytotransformation+of+o%2Cp%27-DDT+and+p%2Cp%27-DDT+by+axenically+cultivated+aquatic+plants.&rft.au=Gao%2C+J%3BGarrison%2C+A+W%3BHoehamer%2C+C%3BMazur%2C+C+S%3BWolfe%2C+N+L&rft.aulast=Gao&rft.aufirst=J&rft.date=2000-12-01&rft.volume=48&rft.issue=12&rft.spage=6121&rft.isbn=&rft.btitle=&rft.title=Journal+of+agricultural+and+food+chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-10-25 N1 - Date created - 2001-04-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Uptake and phytotransformation of organophosphorus pesticides by axenically cultivated aquatic plants. AN - 72588995; 11312784 AB - The uptake and phytotransformation of organophosphorus (OP) pesticides (malathion, demeton-S-methyl, and crufomate) was investigated in vitro using the axenically aquatic cultivated plants parrot feather (Myriophyllum aquaticum), duckweed (Spirodela oligorrhiza L.), and elodea (Elodea canadensis). The decay profile of these OP pesticides from the aqueous medium adhered to first-order kinetics. However, extent of decay and rate constants depended on both the physicochemical properties of the OP compounds and the nature of the plant species. Malathion and demeton-S-methyl exhibited similar transformation patterns in all three plants: 29-48 and 83-95% phytotransformation, respectively, when calculated by mass recovery balance during an 8-day incubation. No significant disappearance and phytotransformation of crufomate occurred in elodea over 14 days, whereas 17-24% degraded in the other plants over the same incubation period. Using enzyme extracts derived from duckweed, 15-25% of the three pesticides were transformed within 24 h of incubation, which provided evidence for the degradation of the OP compounds by an organophosphorus hydrolase (EC 3.1.8.1) or multiple enzyme systems. The results of this study showed that selected aquatic plants have the potential to accumulate and to metabolize OP compounds; it also provided knowledge for potential use in phytoremediation processes. JF - Journal of agricultural and food chemistry AU - Gao, J AU - Garrison, A W AU - Hoehamer, C AU - Mazur, C S AU - Wolfe, N L AD - National Exposure Research Laboratory, U.S. Environmental Protection Agency, 960 College Station Road, Athens, Georgia 30605, USA. Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 6114 EP - 6120 VL - 48 IS - 12 SN - 0021-8561, 0021-8561 KW - Insecticides KW - 0 KW - Organophosphorus Compounds KW - Pesticide Residues KW - Water Pollutants, Chemical KW - Index Medicus KW - Biotransformation KW - Water Pollutants, Chemical -- pharmacokinetics KW - Pesticide Residues -- metabolism KW - Plants -- metabolism KW - Insecticides -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72588995?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+agricultural+and+food+chemistry&rft.atitle=Uptake+and+phytotransformation+of+organophosphorus+pesticides+by+axenically+cultivated+aquatic+plants.&rft.au=Gao%2C+J%3BGarrison%2C+A+W%3BHoehamer%2C+C%3BMazur%2C+C+S%3BWolfe%2C+N+L&rft.aulast=Gao&rft.aufirst=J&rft.date=2000-12-01&rft.volume=48&rft.issue=12&rft.spage=6114&rft.isbn=&rft.btitle=&rft.title=Journal+of+agricultural+and+food+chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-10-25 N1 - Date created - 2001-04-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Influence of reagent purity on the ion chromatographic determination of bromate in water using 3,3'-dimethoxybenzidine as a prochromophore for photometric detection. AN - 72580838; 11296743 AB - Variable availability of the purified dihydrochloride salt of 3,3'-dimethoxybenzidine (DMB; ortho-dianisidine) led us to investigate the effects of reagent purity on the analytical results obtained when this reagent is used in the photometric determination of the disinfection byproduct bromate. After analyte ions are separated by ion chromatography, a solution of DMB (post-column reagent) is added to the eluate and the DMB is oxidized, thereby producing a chromophore detected by its absorbance. Although some commercial products of undefined grade performed well, others did not. Variability was also observed between lots of purified material. Sensitivity at low concentrations (< 5 micrograms L-1 BrO3-) varied by a factor of up to 10. In some cases, the lower limit of detection for photometric detection was greater than that obtained using conductivity detection, as high as 5-7 micrograms L-1 BrO3-. An impurity or several impurities are suspected to be responsible for deviations from linearity at low analyte concentrations. This investigation underscores the need for ensuring reagent purity in environmental analyses. Ideally, chemical manufacturers will meet the needs of analytical chemists who test potable water and begin producing a high grade material in sufficient quantities to meet monitoring requirements. The establishment of third-party standards for a spectrophotometric grade of DMB.2HCl would be helpful in ensuring that a variety of manufacturers could supply products of uniformly high quality that would be suitable for the measurement of bromate in public drinking water supplies. JF - Journal of environmental monitoring : JEM AU - Urbansky, E T AU - Brown, S K AD - United States Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Water Supply and Water Resources Division, 26 West Martin Luther King Drive, Cincinnati, OH 45268, USA. urbansky.edward@epa.gov Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 571 EP - 575 VL - 2 IS - 6 SN - 1464-0325, 1464-0325 KW - Bromates KW - 0 KW - Indicators and Reagents KW - Water Pollutants, Chemical KW - Dianisidine KW - MJY508JZXV KW - Index Medicus KW - Sensitivity and Specificity KW - Dianisidine -- chemistry KW - Reproducibility of Results KW - Photometry -- methods KW - Water Supply KW - Environmental Monitoring -- methods KW - Bromates -- analysis KW - Water Pollutants, Chemical -- analysis KW - Chromatography, Ion Exchange -- methods KW - Indicators and Reagents -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72580838?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+environmental+monitoring+%3A+JEM&rft.atitle=Influence+of+reagent+purity+on+the+ion+chromatographic+determination+of+bromate+in+water+using+3%2C3%27-dimethoxybenzidine+as+a+prochromophore+for+photometric+detection.&rft.au=Urbansky%2C+E+T%3BBrown%2C+S+K&rft.aulast=Urbansky&rft.aufirst=E&rft.date=2000-12-01&rft.volume=2&rft.issue=6&rft.spage=571&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+monitoring+%3A+JEM&rft.issn=14640325&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-07-19 N1 - Date created - 2001-04-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - In vivo metallothionein and glutathione status in an acute response to cadmium in Mercenaria mercenaria brown cells. AN - 72580251; 11246496 AB - Brown cells that are found in the red glands of Mercenaria mercenaria accumulate, detoxify and excrete cadmium. Brown cell involvement in metal detoxification was due in part to endogenous glutathione (GSH) and protein sulfhydryl. Metallothionein (MT) and GSH have been shown to play an important role in metal detoxification in bivalve molluscs. This study showed that the protein sulfhydryl in brown cells of Mercenaria was in fact MT, that brown cell GSH functioned in acute protection against Cd2+ toxicity, that GSH provided the initial defense against Cd2+ toxicity prior to MT induction and that MT variants were unequal in response to Cd2+. During treatment of Mercenaria with 0.5 and 1.0 ppm Cd2+, brown cells were analyzed for MT by capillary electrophoresis and GSH colorimetrically after 0.25, 1, 2, 3, and 4 days. The data indicated that the cadmium-binding protein was MT with an apparent molecular weight of 9 kDa determined by gel filtration or 6 kDa as indicated by capillary electrophoresis. Glutathione appeared to prevail in the brown cell acute response to 0.5 ppm Cd2+, whereas MT appeared to prevail in the acute response to 1.0 ppm Cd2+. Capillary electrophoresis can be used to monitor and quantify MT and its variants in brown cells without need for prior separation of cytosolic components by chromatography. The change in MT-II was greater relative to the change in MT-I in the brown cell acute response to 0.5 ppm Cd2+, whereas the change in MT-1 was greater relative to the change in MT-II in the acute response to 1.0 ppm Cd2+. The variants of brown cell MT appeared to respond differentially to Cd2+ depending upon the Cd2+ treatment concentration. JF - Comparative biochemistry and physiology. Toxicology & pharmacology : CBP AU - Zaroogian, G AU - Jackim, E AD - United States Environmental Protection Agency, Narragansett, RI 02882, USA. zaroogian.jerry@epa.gov Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 251 EP - 261 VL - 127 IS - 3 SN - 1532-0456, 1532-0456 KW - Sulfhydryl Compounds KW - 0 KW - Cadmium KW - 00BH33GNGH KW - Metallothionein KW - 9038-94-2 KW - Glutathione KW - GAN16C9B8O KW - Index Medicus KW - Animals KW - Sulfhydryl Compounds -- metabolism KW - Algorithms KW - Molecular Weight KW - Electrophoresis, Capillary KW - Exocrine Glands -- cytology KW - Cadmium -- metabolism KW - Exocrine Glands -- metabolism KW - Mollusca -- metabolism KW - Glutathione -- metabolism KW - Mollusca -- cytology KW - Cadmium -- toxicity KW - Exocrine Glands -- drug effects KW - Metallothionein -- metabolism KW - Metallothionein -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72580251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Comparative+biochemistry+and+physiology.+Toxicology+%26+pharmacology+%3A+CBP&rft.atitle=In+vivo+metallothionein+and+glutathione+status+in+an+acute+response+to+cadmium+in+Mercenaria+mercenaria+brown+cells.&rft.au=Zaroogian%2C+G%3BJackim%2C+E&rft.aulast=Zaroogian&rft.aufirst=G&rft.date=2000-12-01&rft.volume=127&rft.issue=3&rft.spage=251&rft.isbn=&rft.btitle=&rft.title=Comparative+biochemistry+and+physiology.+Toxicology+%26+pharmacology+%3A+CBP&rft.issn=15320456&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-05-31 N1 - Date created - 2001-03-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Sensitivity of immature neurons in culture to metal-induced changes in reactive oxygen species and intracellular free calcium. AN - 72578224; 11233760 AB - It is widely recognized that prolonged increases in reactive oxygen species (ROS) and intracellular free calcium ([Ca2+]i) are part of a signaling pathway leading to cell death. ROS production resulting in oxidative stress and disruption of calcium homeostasis leading to increases in [Ca2+]i have been described as early events following exposure to a number of neurotoxicants. In order to determine the intrinsic sensitivity of developing neurons to toxicant-induced oxidative stress and disruption of calcium homeostasis, we exposed immature neurons to iron (Fe2+) or methylmercury (MeHg). Primary cultures of cortical cells (prepared from 1 day old rats) or cerebellar granule cells (prepared from 7 day old rats) were exposed to the toxicants on day in vitro (DIV) 1 (immature response to receptor agonists) or DIV 7 (mature response to receptor agonists). ROS was measured using the fluorescent probe 2',7'-dichlorodihydrofluorescin. In both cerebellar granule cells and cortical cells, Fe2+ or MeHg exposure (0.1-30 microM) produced time- and concentration-dependent increases in ROS. In general, the increase in ROS induced by both metals was greater in immature cells compared to mature cells, except for cerebellar granule cells in which the effects of Fe2+ were similar at DIV1 and 7. Changes in intracellular cation concentrations (including Ca2+) were measured using the fluorescent probe fluo-3. MeHg exposure produced a time- and concentration-dependent increase in fluo-3 fluorescence in both cerebellar granule cells and cortical cells. In cortical cultures, the fluorescence increase after MeHg exposure was greater in immature cells. In contrast, mature and immature cells were equally sensitive to the effects of MeHg in cerebellar granule cell cultures. These results suggest that there may be inherent differences in the sensitivity of neurons to toxicant-induced increases in ROS and [Ca2+] depending upon age and cell type. JF - Neurotoxicology AU - Mundy, W R AU - Freudenrich, T M AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA. mundy.william@epa.gov Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 1135 EP - 1144 VL - 21 IS - 6 SN - 0161-813X, 0161-813X KW - Metals KW - 0 KW - Methylmercury Compounds KW - Reactive Oxygen Species KW - Glutamic Acid KW - 3KX376GY7L KW - Iron KW - E1UOL152H7 KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Rats KW - Animals KW - Rats, Long-Evans KW - Iron -- pharmacology KW - Cells, Cultured KW - Methylmercury Compounds -- pharmacology KW - Glutamic Acid -- pharmacology KW - Calcium -- metabolism KW - Reactive Oxygen Species -- metabolism KW - Neurons -- drug effects KW - Metals -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72578224?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Neurotoxicology&rft.atitle=Sensitivity+of+immature+neurons+in+culture+to+metal-induced+changes+in+reactive+oxygen+species+and+intracellular+free+calcium.&rft.au=Mundy%2C+W+R%3BFreudenrich%2C+T+M&rft.aulast=Mundy&rft.aufirst=W&rft.date=2000-12-01&rft.volume=21&rft.issue=6&rft.spage=1135&rft.isbn=&rft.btitle=&rft.title=Neurotoxicology&rft.issn=0161813X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-05-24 N1 - Date created - 2001-03-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Growth, lipid class and fatty acid composition in juvenile mud crabs (Rhithropanopeus harrisii ) following larval exposure to Fenoxycarb, insect juvenile hormone analog. AN - 72576818; 11246503 AB - This study examines the effects of Fenoxycarb on larval growth, and lipid class and fatty acid composition in first crabs of the mud crab Rhithropanopeus harrisii reared through total larval development in nominal water concentrations from 1 to 100 microg/l. In first crabs of R. harrisii, dry weight (microg) decreased significantly (P 0.05) differences among the treatment groups in phospholipid level, while the triglyceride content was significantly lower in crabs exposed to 10 and 100 microg/l. No significant differences in the percent of free fatty acids were found in crabs exposed to 1-10 microg/l and the controls. Free sterols in crabs exposed to concentrations higher than 10 microg/l were below the detection limit. Control animal fatty acid profiles were dominated by palmitic, stearic, and oleic acid, accounting for 48% of total fatty acids (TFA). The fatty acid composition of crabs exposed to 100 microg/l significantly (P < 0.05) differed from the controls. The results suggest that fenoxycarb has substantial effects on growth, lipid class and fatty acid composition in developing larvae of R. harrisii at water concentrations greater than 10 microg/l. JF - Comparative biochemistry and physiology. Toxicology & pharmacology : CBP AU - Nates, S F AU - McKenney, C L AD - US Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Gulf Ecology Division, Gulf Breeze, FL 32561-5299, USA. nates.sergio@epa.gov Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 317 EP - 325 VL - 127 IS - 3 SN - 1532-0456, 1532-0456 KW - Carbamates KW - 0 KW - Fatty Acids KW - Insecticides KW - Juvenile Hormones KW - Phenylcarbamates KW - Phospholipids KW - fenoxycarb KW - JEN0LSV1G9 KW - Index Medicus KW - Animals KW - Humans KW - Phospholipids -- metabolism KW - Gas Chromatography-Mass Spectrometry KW - Larva -- growth & development KW - Insecticides -- toxicity KW - Brachyura -- metabolism KW - Brachyura -- growth & development KW - Juvenile Hormones -- toxicity KW - Lipid Metabolism KW - Growth -- drug effects KW - Fatty Acids -- metabolism KW - Carbamates -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72576818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Comparative+biochemistry+and+physiology.+Toxicology+%26+pharmacology+%3A+CBP&rft.atitle=Growth%2C+lipid+class+and+fatty+acid+composition+in+juvenile+mud+crabs+%28Rhithropanopeus+harrisii+%29+following+larval+exposure+to+Fenoxycarb%2C+insect+juvenile+hormone+analog.&rft.au=Nates%2C+S+F%3BMcKenney%2C+C+L&rft.aulast=Nates&rft.aufirst=S&rft.date=2000-12-01&rft.volume=127&rft.issue=3&rft.spage=317&rft.isbn=&rft.btitle=&rft.title=Comparative+biochemistry+and+physiology.+Toxicology+%26+pharmacology+%3A+CBP&rft.issn=15320456&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-05-31 N1 - Date created - 2001-03-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The functional observational battery in adult and developing rats. AN - 72572605; 11233768 AB - Neurobehavioral screening methods, such as the functional observational battery (FOB), are now widely used to identify potential neurotoxicity of new and existing chemicals. These methods have been validated and a large database now exists for the effects of a wide range of chemicals. Since most of the observations recorded are subjective, the quality of the test data depends largely on the observer's ability to detect and describe changes in the animal's behavior and neurologic function. Efforts are underway to aid in the training of observers and to achieve consistency across laboratories in the use of these methods. With the increasing concern over potential neurotoxicological consequences of chemical exposure in the developing organism, there is growing interest in testing laboratory animals at very young ages. We present here an initial report of the development of an FOB suitable for young rats, using some modifications of the individual adult FOB test measures to make them age-appropriate. We have evaluated pre- and postweanling rats to determine the range of behaviors (as evaluated with the FOB) displayed at each age, develop appropriate scoring criteria, and collect control data to document the ontogeny of each of the endpoints in the FOB. This revised FOB protocol may be useful for assessing behavioral or neurological changes due to acute chemical exposure in young rats, or following gestational/lactational exposures typical of developmental neurotoxicity studies. JF - Neurotoxicology AU - Moser, V C AD - National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA. moser.ginger@epa.gov Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 989 EP - 996 VL - 21 IS - 6 SN - 0161-813X, 0161-813X KW - Index Medicus KW - Rats KW - Animals KW - Endpoint Determination KW - Aging -- psychology KW - Behavior, Animal -- drug effects KW - Nervous System -- growth & development KW - Developmental Biology -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72572605?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Neurotoxicology&rft.atitle=The+functional+observational+battery+in+adult+and+developing+rats.&rft.au=Moser%2C+V+C&rft.aulast=Moser&rft.aufirst=V&rft.date=2000-12-01&rft.volume=21&rft.issue=6&rft.spage=989&rft.isbn=&rft.btitle=&rft.title=Neurotoxicology&rft.issn=0161813X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-05-24 N1 - Date created - 2001-03-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Recent advances in recognition of low-level methylmercury poisoning. AN - 72520128; 11148673 AB - Clinically evident neurologic damage from methylmercury exposure was well described following poisoning episodes in Japan and Iraq several decades ago. Paresthesias have been considered to be an early effect; however, additional data raise questions about whether this is the most sensitive adverse effect among adults. Fetuses are considered the most sensitive subpopulation because of the vulnerability of the developing nervous system. Over the past 5 years questions have been raised about what is an appropriate level of exposure for sensitive groups. A recent evaluation by a committee for the US National Research Council found that 0.1 microg/kg body weight per day is a scientifically justified level of methylmercury exposure for maternal-fetal pairs. The conclusions of this report and other issues are discussed in the present review. Because of anthropogenic release of mercury into the environment, methylmercury exposure from fish consumption is a pathway that is of increasing concern. JF - Current opinion in neurology AU - Mahaffey, K R AD - Division of Exposure Assessment Coordination and Policy, United States Environmental Protection Agency, Washington, District of Columbia 20460, USA. mahaffey.kate@epa.gov Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 699 EP - 707 VL - 13 IS - 6 SN - 1350-7540, 1350-7540 KW - Methylmercury Compounds KW - 0 KW - Index Medicus KW - Dose-Response Relationship, Drug KW - Humans KW - Adult KW - Mercury Poisoning -- pathology KW - Methylmercury Compounds -- poisoning KW - Mercury Poisoning -- diagnosis KW - Neurotoxicity Syndromes -- pathology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72520128?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+opinion+in+neurology&rft.atitle=Recent+advances+in+recognition+of+low-level+methylmercury+poisoning.&rft.au=Mahaffey%2C+K+R&rft.aulast=Mahaffey&rft.aufirst=K&rft.date=2000-12-01&rft.volume=13&rft.issue=6&rft.spage=699&rft.isbn=&rft.btitle=&rft.title=Current+opinion+in+neurology&rft.issn=13507540&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-03-01 N1 - Date created - 2001-01-09 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Cost-comparison of DDT and alternative insecticides for malaria control. AN - 72499704; 11129697 AB - In anti-malaria operations the use of DDT for indoor residual spraying has declined substantially over the past 30years, but this insecticide is still considered valuable for malaria control, mainly because of its low cost relative to alternative insecticides. Despite the development of resistance to DDT in some populations of malaria vector Anopheles mosquitoes (Diptera: Culicidae), DDT remains generally effective when used for house-spraying against most species of Anopheles, due to excitorepellency as well as insecticidal effects. A 1990 cost comparison by the World Health Organization (WHO) found DDT to be considerably less expensive than other insecticides, which cost 2 to 23 times more on the basis of cost per house per 6 months of control. To determine whether such a cost advantage still prevails for DDT, this paper compares recent price quotes from manufacturers and WHO suppliers for DDT and appropriate formulations of nine other insecticides (two carbamates, two organophosphates and five pyrethroids) commonly used for residual house-spraying in malaria control programmes. Based on these 'global' price quotes, detailed calculations show that DDT is still the least expensive insecticide on a cost per house basis, although the price appears to be rising as DDT production declines. At the same time, the prices of pyrethroids are declining, making some only slightly more expensive than DDT at low application dosages. Other costs, including operations (labour), transportation and human safety may also increase the price advantages of DDT and some pyrethroids vs. organophosphates and carbamates, although possible environmental impacts from DDT remain a concern. However, a global cost comparison may not realistically reflect local costs or effective application dosages at the country level. Recent data on insecticide prices paid by the health ministries of individual countries showed that prices of particular insecticides can vary substantially in the open market. Therefore, the most cost-effective insecticide in any given country or region must be determined on a case-by-case basis. Regional coordination of procurement of public health insecticides could improve access to affordable products. JF - Medical and veterinary entomology AU - Walker, K AD - American Association for the Advancement of Science Fellow, US Environmental Protection Agency, Washington DC, USA. kwalker@usaid.gov Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 345 EP - 354 VL - 14 IS - 4 SN - 0269-283X, 0269-283X KW - Carbamates KW - 0 KW - Insecticides KW - Organophosphorus Compounds KW - Pyrethrins KW - DDT KW - CIW5S16655 KW - Index Medicus KW - Animals KW - World Health Organization KW - Costs and Cost Analysis KW - Plasmodium -- growth & development KW - Insecticides -- economics KW - Insecticides -- administration & dosage KW - Humans KW - Plants KW - Insect Vectors -- parasitology KW - Malaria -- prevention & control KW - DDT -- economics KW - DDT -- administration & dosage KW - DDT -- adverse effects KW - Insect Control -- methods KW - Insect Control -- economics KW - Anopheles -- parasitology KW - Malaria -- economics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72499704?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Medical+and+veterinary+entomology&rft.atitle=Cost-comparison+of+DDT+and+alternative+insecticides+for+malaria+control.&rft.au=Walker%2C+K&rft.aulast=Walker&rft.aufirst=K&rft.date=2000-12-01&rft.volume=14&rft.issue=4&rft.spage=345&rft.isbn=&rft.btitle=&rft.title=Medical+and+veterinary+entomology&rft.issn=0269283X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-02-08 N1 - Date created - 2000-12-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Attenuated allergic responses to house dust mite antigen in feed-restricted rats. AN - 72473885; 11133391 AB - Caloric restriction has been shown to alter a broad range of immunological end points in both experimental animals and humans. The objective of this study was to investigate the effect of short-term moderate feed restriction (25% reduction) on allergic immune responses in Brown Norway rats. After 3 weeks of acclimation to their feed regimens, rats were sensitized and 2 weeks later challenged with house dust mite (HDM) antigen via intratracheal instillation. Feed restriction resulted in lower levels of antigen-specific IgE in serum and reduced antigen specific lymphoproliferative activity in pulmonary lymph nodes. Feed restriction also attenuated pulmonary inflammation, as evidenced by lower levels of lactate dehydrogenase and total protein, decreased infiltration of neutrophils and eosinophils, and reduced secretion of pro-inflammatory cytokine tumor necrosis factor (TNF)-[alpha] in bronchoalveolar lavage fluid. In addition, feed restriction decreased TNF-[alpha] secretion in serum and decreased mRNA expression of TNF-[alpha] and interleukin-6 in pulmonary lymph nodes. We conclude that feed restriction strongly dampened the allergic immune responses to HDM in rats and that this attenuation was associated with decreased expression and secretion of pro-inflammatory cytokines. JF - Environmental health perspectives AU - Dong, W AU - Kari, F W AU - Selgrade, M K AU - Gilmour, M I AD - Immunotoxicology Branch, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA. Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 1125 EP - 1131 VL - 108 IS - 12 SN - 0091-6765, 0091-6765 KW - Cytokines KW - 0 KW - Dust KW - Immunoglobulin E KW - 37341-29-0 KW - Index Medicus KW - Rats KW - Animals KW - Immunoglobulin E -- analysis KW - Cytokines -- biosynthesis KW - Antibody Formation -- immunology KW - Female KW - Eating KW - Hypersensitivity -- immunology KW - Mites -- immunology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72473885?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+health+perspectives&rft.atitle=Attenuated+allergic+responses+to+house+dust+mite+antigen+in+feed-restricted+rats.&rft.au=Dong%2C+W%3BKari%2C+F+W%3BSelgrade%2C+M+K%3BGilmour%2C+M+I&rft.aulast=Dong&rft.aufirst=W&rft.date=2000-12-01&rft.volume=108&rft.issue=12&rft.spage=1125&rft.isbn=&rft.btitle=&rft.title=Environmental+health+perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-02-08 N1 - Date created - 2001-01-29 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Am J Respir Crit Care Med. 1998 Jun;157(6 Pt 1):1991-9 [9620937] Mech Ageing Dev. 1997 Feb;93(1-3):87-94 [9089573] Am J Respir Cell Mol Biol. 1998 Sep;19(3):462-9 [9730874] Int Arch Allergy Immunol. 1998 Sep;117(1):52-9 [9751848] Pulm Pharmacol Ther. 1997 Oct-Dec;10(5-6):277-85 [9778491] Lung. 1999;177(1):53-62 [9835634] Am J Respir Cell Mol Biol. 1997 Dec;17(6):740-7 [9409561] Int Arch Allergy Immunol. 1998 Jan;115(1):24-32 [9430492] J Allergy Clin Immunol. 1998 Jan;101(1 Pt 1):75-83 [9449504] Am J Respir Cell Mol Biol. 1998 Apr;18(4):453-62 [9533932] J Pediatr. 1998 Apr;132(4):699-703 [9580773] Int Arch Allergy Immunol. 1998 Dec;117(4):248-54 [9876226] Biol Neonate. 1999;75(4):225-33 [10026370] Ann Allergy Asthma Immunol. 1999 Feb;82(2):161-4 [10071519] Am J Respir Cell Mol Biol. 1999 Apr;20(4):643-50 [10100995] J Clin Invest. 1999 Apr;103(7):1077-87 [10194481] Mutat Res. 1999 Jul 15;443(1-2):235-49 [10415442] Toxicol Appl Pharmacol. 1999 Aug 1;158(3):269-77 [10438660] Cell Immunol. 1984 Oct 1;88(1):1-8 [6332679] Am J Pathol. 1993 Jun;142(6):1739-49 [7685152] Proc Soc Exp Biol Med. 1994 Feb;205(2):97-105 [8108472] J Immunol. 1995 May 15;154(10):5411-7 [7730642] Am J Respir Cell Mol Biol. 1995 Nov;13(5):555-62 [7576691] Science. 1996 Jul 5;273(5271):59-63 [8658196] J Biol Chem. 1996 Jun 7;271(23):13422-9 [8662787] Am J Respir Cell Mol Biol. 1996 Jul;15(1):35-44 [8679220] J Pharmacol Exp Ther. 1996 Aug;278(2):847-53 [8768739] Fundam Appl Toxicol. 1996 May;31(1):65-70 [8998954] J Clin Immunol. 1997 Jan;17(1):85-95 [9049789] Toxicol Sci. 1998 Jul;44(1):63-9 [9720142] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A pulmonary rat gene array for screening altered expression profiles in air pollutant-induced lung injury. AN - 72471721; 11114790 AB - Pulmonary tissue injury and repair processes involve complex and coordinated cellular events such as necrosis, inflammation, cell growth/differentiation, apoptosis, and remodeling of extracellular matrix. These processes are regulated by expression of multiple mediator genes. Commercially available microarray blots and slides allow screening of hundreds to thousands of genes in a given tissue or cell preparation. However, often these blots do not contain cDNAs of one's interest and are difficult to interpret. In order to analyze the tissue expression profile of a large number of genes involved in pulmonary injury and pathology, we developed a rat gene array filter using array technology. This array consisted of 27 genes representing inflammatory and anti-inflammatory cytokines, growth factors, adhesion molecules, stress proteins, transcription factors and antioxidant enzymes; 3 negative controls, and 2 blank spots. Using rat gene-specific polymerase chain reaction (PCR) primer pairs, cDNAs for these genes were amplified and cloned into a TA vector. Plasmids with recombinant cDNA inserts were purified and blotted onto a nylon membrane. Lung total RNA was isolated at 3 or 24 h following intratracheal (IT) exposure of male Sprague Dawley rats to either saline (control), residual oil fly ash (ROFA; 3.3 mg/kg) or metals found in one instillate of ROFA: nickel (NiSO(4); 1. 3 micromol/kg) or vanadium (VSO(4); 2.2 micromol/kg). (32)P-Labeled cDNA was generated from RNA samples in a reverse transcriptase reaction and subsequently hybridized to array blots. Densitometric scans of array blots revealed a twofold induction of interleukin (IL)-6 and TIMP-1 at 24 h post ROFA or Ni exposure. The pulmonary expressions of cellular fibronectin (cFn-EIIIA), ICAM-1, IL-1beta, and iNOS genes were also increased 24 h post ROFA-, V-, or Ni-exposure. Consistent hybridization of beta-actin in all array blots and absence of hybridization signals in negative controls indicated gene specific hybridization. ROFA or metal-induced increase in the expression of IL-6 observed in array blot was validated by Northern blot hybridization. Developing a pulmonary rat gene array may provide a tool for screening the expression profile of tissue specific markers following exposure to toxic air contaminants. JF - Inhalation toxicology AU - Nadadur, S S AU - Schladweiler, M C AU - Kodavanti, U P AD - Pulmonary Toxicology Branch, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, MD-82, Research Triangle Park, NC 27711, USA. nadadur.srikanth@epa.gov Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 1239 EP - 1254 VL - 12 IS - 12 SN - 0895-8378, 0895-8378 KW - Air Pollutants KW - 0 KW - Vanadium KW - 00J9J9XKDE KW - Nickel KW - 7OV03QG267 KW - Index Medicus KW - Rats KW - Animals KW - Rats, Sprague-Dawley KW - Blotting, Northern KW - Vanadium -- toxicity KW - Nickel -- toxicity KW - Male KW - Lung -- drug effects KW - Gene Expression Regulation -- drug effects KW - Lung -- pathology KW - Lung -- metabolism KW - Air Pollutants -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72471721?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Inhalation+toxicology&rft.atitle=A+pulmonary+rat+gene+array+for+screening+altered+expression+profiles+in+air+pollutant-induced+lung+injury.&rft.au=Nadadur%2C+S+S%3BSchladweiler%2C+M+C%3BKodavanti%2C+U+P&rft.aulast=Nadadur&rft.aufirst=S&rft.date=2000-12-01&rft.volume=12&rft.issue=12&rft.spage=1239&rft.isbn=&rft.btitle=&rft.title=Inhalation+toxicology&rft.issn=08958378&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-01-03 N1 - Date created - 2001-01-03 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Comparison of heat and cold stress to assess thermoregulatory dysfunction in hypothyroid rats. AN - 72422745; 11080070 AB - How borderline impairment of thyroid function can affect thermoregulation is an important issue because of the antithyroidal properties of a many environmental toxicants. This study compared the efficacy of heat and cold stress to identify thermoregulatory deficits in rats subjected to borderline and overt hypothyroidism via subchronic exposure to propylthiouracil (PTU). After 3 wk of exposure to PTU in the drinking water (0, 2.5, 5, 10, and 25 mg/l), rats were subjected to a heat stress challenge (34 degrees C for 2.5 h). After one more week of PTU treatment, the same rats were subjected to a cold stress challenge (7 degrees C for 2.5 h). Core temperature (T(c)) was monitored by radiotelemetry. Baseline T(c) during the light phase was reduced by treatment with 25 mg/l PTU. The rate of rise and overall increase in T(c) during heat stress was attenuated by PTU doses of 10 and 25 mg/l. Cold stress resulted in a 1.0 degrees C increase in T(c) regardless of PTU treatment. The rate of rise in T(c) during the cold stress challenge was similar in all PTU treatment groups. There was a dose-related decrease in serum thyroxine (T(4)) at PTU doses >/=5 mg/l. Serum triiodothyronine (T(3)) was reduced at PTU doses of 5 and 25 mg/l. Serum thyroid-stimulating hormone (TSH) was marginally elevated by PTU treatment. Overall, heat stress was more effective than cold stress for detecting a thermoregulatory deficit in borderline (i.e., 10 mg/l PTU) and overtly hypothyroid rats (i.e., 25 mg/l PTU). A significant thermoregulatory deficit is manifested with a 78% decrease in serum T(4). A thermoregulatory deficit is more correlated with a reduction in serum T(4) compared with T(3). Serum levels of TSH are unrelated to thermoregulatory response to heat and cold stress. JF - American journal of physiology. Regulatory, integrative and comparative physiology AU - Gordon, C J AU - Becker, P AU - Padnos, B AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. gordon.christopher@epa.gov Y1 - 2000/12// PY - 2000 DA - December 2000 SP - R2066 EP - R2071 VL - 279 IS - 6 SN - 0363-6119, 0363-6119 KW - Triiodothyronine KW - 06LU7C9H1V KW - Propylthiouracil KW - 721M9407IY KW - Index Medicus KW - Animals KW - Rats, Long-Evans KW - Body Temperature -- drug effects KW - Triiodothyronine -- blood KW - Cold Temperature KW - Motor Activity -- physiology KW - Propylthiouracil -- pharmacology KW - Rats KW - Hot Temperature KW - Activity Cycles KW - Body Temperature -- physiology KW - Motor Activity -- drug effects KW - Stress, Physiological KW - Body Temperature Regulation -- drug effects KW - Hypothyroidism -- physiopathology KW - Body Temperature Regulation -- physiology KW - Acclimatization -- physiology KW - Hypothyroidism -- chemically induced UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72422745?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+journal+of+physiology.+Regulatory%2C+integrative+and+comparative+physiology&rft.atitle=Comparison+of+heat+and+cold+stress+to+assess+thermoregulatory+dysfunction+in+hypothyroid+rats.&rft.au=Gordon%2C+C+J%3BBecker%2C+P%3BPadnos%2C+B&rft.aulast=Gordon&rft.aufirst=C&rft.date=2000-12-01&rft.volume=279&rft.issue=6&rft.spage=R2066&rft.isbn=&rft.btitle=&rft.title=American+journal+of+physiology.+Regulatory%2C+integrative+and+comparative+physiology&rft.issn=03636119&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-14 N1 - Date created - 2000-12-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Innovation in U.S. Environmental Policy: Is the Future Here? AN - 60452255; 200308450 AB - Although the need for environmental protection is generally accepted in the United States, there is debate over what form environmental policies should take. The articles in this collection offer a variety of perspectives on the need for policy innovation to deal with the challenges of the future. Their common themes are the need for bottom-up problem solving, the value of nonregulatory approaches, the importance of citizen participation, the use of the precautionary principle, & a focus on ecological as well as health issues. 16 References. [Copyright 2000 Sage Publications, Inc.] JF - American Behavioral Scientist AU - Fiorino, Daniel J AD - Environmental Protection Agency Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 538 EP - 547 VL - 44 IS - 4 SN - 0002-7642, 0002-7642 KW - Policy Making KW - Environmental Policy KW - United States of America KW - Policy Reform KW - article KW - 2462: policy, planning, forecasting; policy sciences KW - 2656: environmental interactions; environmental interactions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/60452255?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Behavioral+Scientist&rft.atitle=Innovation+in+U.S.+Environmental+Policy%3A+Is+the+Future+Here%3F&rft.au=Fiorino%2C+Daniel+J&rft.aulast=Fiorino&rft.aufirst=Daniel&rft.date=2000-12-01&rft.volume=44&rft.issue=4&rft.spage=538&rft.isbn=&rft.btitle=&rft.title=American+Behavioral+Scientist&rft.issn=00027642&rft_id=info:doi/10.1177_0002764200044004003 LA - English DB - Sociological Abstracts N1 - Date revised - 2007-04-01 N1 - Last updated - 2016-09-28 N1 - SubjectsTermNotLitGenreText - United States of America; Environmental Policy; Policy Making; Policy Reform DO - http://dx.doi.org/10.1177_0002764200044004003 ER - TY - JOUR T1 - Use of small forage fish for regional streams wildlife risk assessment: relative bioaccumulation of contaminants AN - 18020290; 4850860 AB - Selection of fish species for sampling to assess extent and potential effects of fish tissue contaminants is a critical consideration in the design of regional probability-design surveys. The ideal species would be ubiquitous, bioaccumulate toxic chemicals, and be prey of consumers of concern (piscivorous wildlife, humans). In first to third order streams, small short-lived forage fish (minnows (F. Cyprinidae), darters (F. Percidae), and sculpins (F. Cottidae), are more frequently found and therefore likely to be prey to more species of wildlife than those of sportfish whose adults grow to a large size (suckers (F. Catostomidae), trout (F. Salmonidae), bass, and sunfish (F. Centrarchidae), and carp). Targeting smaller forage fish should also produce a larger number of individuals per sample on average than may be achieved with the larger species. An analysis of fish collected in 1993 and 1994 as part of the Mid-Atlantic Highlands Assessment (MAHA) showed that, as expected, forage fish were more ubiquitous than sportfish species. Analysis also revealed that, on a regional basis, forage fish bioaccumulated comparable levels to sportfish, of some widely occurring contaminants such as DDT, MeHg, and PCBs. Results indicated that smaller forage fish can be used as indicator species for a regional assessment for most contaminants (Zn being the one clear exception), that was not significantly different from one based on the larger species. Forage fish may therefore be an excellent choice as indicator species for regional streams ecological risk assessment studies. JF - Environmental Monitoring and Assessment AU - Yeardley, RB Jr AD - c/o United States Environmental Protection Agency, Cincinnati, OH, USA, yeardley.roger@epamail.epa.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 559 EP - 585 VL - 65 IS - 3 SN - 0167-6369, 0167-6369 KW - Bullheads KW - Carps KW - DDT KW - PCB KW - Salmonids KW - Suckers KW - Sunfishes KW - True perches KW - dimethylmercury KW - forage fish KW - mercury KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts; Ecology Abstracts; Risk Abstracts; Toxicology Abstracts; Pollution Abstracts KW - Risk assessment KW - Pollution monitoring KW - Centrarchidae KW - Polychlorinated Biphenyls KW - Predation KW - Cottidae KW - Pollution effects KW - Catostomidae KW - Freshwater fish KW - Tissue Analysis KW - Streams KW - Percidae KW - Pisces KW - Cyprinidae KW - Body size KW - Stream Pollution KW - Sampling KW - Salmonidae KW - Pollution indicators KW - Freshwater pollution KW - Bioindicators KW - Environmental monitoring KW - Rivers KW - Methylmercury KW - Wildlife KW - Toxicity KW - Bioaccumulation KW - Water Pollution Effects KW - Forage fish KW - Fish KW - Organic Compounds KW - Contaminants KW - Indicator species KW - R2 23040:Biological KW - D 04801:Pollution monitoring and detection KW - Q1 08346:Physiology, biochemistry, biophysics KW - P 2000:FRESHWATER POLLUTION KW - X 24222:Analytical procedures KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18020290?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Use+of+small+forage+fish+for+regional+streams+wildlife+risk+assessment%3A+relative+bioaccumulation+of+contaminants&rft.au=Yeardley%2C+RB+Jr&rft.aulast=Yeardley&rft.aufirst=RB&rft.date=2000-12-01&rft.volume=65&rft.issue=3&rft.spage=559&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Pollution monitoring; Bioaccumulation; Body size; Forage fish; Pollution effects; Pollution indicators; Indicator species; Risk assessment; DDT; Wildlife; Sampling; Streams; PCB; Freshwater pollution; Environmental monitoring; Bioindicators; Pisces; Predation; Freshwater fish; Contaminants; Methylmercury; Polychlorinated Biphenyls; Water Pollution Effects; Stream Pollution; Fish; Organic Compounds; Toxicity; Tissue Analysis; Cyprinidae; Centrarchidae; Cottidae; Salmonidae; Catostomidae; Percidae ER - TY - JOUR T1 - Microsatellite characterization in central stoneroller Campostoma anomalum (Pisces: Cyprinidae) AN - 18015587; 4866297 JF - Molecular Ecology AU - Dimsoski, P AU - Toth, P G AU - Bagley, J M AD - National Exposure Research Laboratory, United States Environmental Protection Agency, 26 West Martin Luther King Drive, Cincinnati, OH 45268, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 2187 EP - 2189 PB - Blackwell Science Ltd VL - 9 IS - 12 SN - 0962-1083, 0962-1083 KW - Central stoneroller KW - microsatellites KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; Genetics Abstracts KW - Genetics KW - Campostoma anomalum KW - Genes KW - Microsatellites KW - Freshwater KW - Ecological genetics KW - Q1 08345:Genetics and evolution KW - G 07371:Fish KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18015587?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+Ecology&rft.atitle=Microsatellite+characterization+in+central+stoneroller+Campostoma+anomalum+%28Pisces%3A+Cyprinidae%29&rft.au=Dimsoski%2C+P%3BToth%2C+P+G%3BBagley%2C+J+M&rft.aulast=Dimsoski&rft.aufirst=P&rft.date=2000-12-01&rft.volume=9&rft.issue=12&rft.spage=2187&rft.isbn=&rft.btitle=&rft.title=Molecular+Ecology&rft.issn=09621083&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Genetics; Genes; Microsatellites; Ecological genetics; Campostoma anomalum; Freshwater ER - TY - JOUR T1 - Periphyton and sediment bioassessment in North Florida Bay AN - 18012696; 4850856 AB - Periphyton colonization and sediment bioassessment were used in a survey to compare the relative environmental condition of sampling sites located in Florida Bay and four peripheral slough areas during the summer of 1995. Periphyton biomass, pigment content, tissue quality and community composition were determined. In addition, benthic community composition and the toxicities of whole sediments and associated pore waters were determined for two species of rooted macrophytes, an epibenthic invertebrate and bioluminescent bacteria. Several locational differences were observed for the response parameters. Periphyton biomass was significantly greater in the Taylor River and the least in Shell Creek (P < 0.05). Most sediments were not acutely toxic to mysid shrimp nor phytotoxic. However, sediments from the Taylor River were more phytostimulatory than others (P < 0.05). Contaminant bioresidues were similar at most sites, however, mercury, chromium and nickel concentrations were greater for periphyton colonized in the Taylor River and Trout Creek areas. Structural characteristics of the periphytic algal community usually were statistically similar but a consistent trend of lower density and diversity was evident for Shell Creek. The benthic community was the least diverse and dense in the Canal C-111. The results of this study provide an initial indication of differences in the role of several slough areas as possible sources of bioavailable contaminants to Florida Bay which warrants additional investigation. JF - Environmental Monitoring and Assessment AU - Lewis, MA AU - Weber, DE AU - Goodman, L R AU - Stanley, R S AU - Craven, W G AU - Patrick, J M AU - Quarles, R L AU - Roush, TH AU - Macauley, J M AD - U.S. Environmental Protection Agency, National Health and Environmental Research Laboratory, Gulf Ecology Division, Gulf Breeze, FL, USA, lewis.michael@epa.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 503 EP - 522 VL - 65 IS - 3 SN - 0167-6369, 0167-6369 KW - Shell Creek KW - Taylor River KW - Trout Creek KW - USA, Florida KW - USA, Florida, Florida Bay KW - aquatic plants KW - bacteria KW - marine crustacea KW - marine invertebrates KW - rooted macrophytes KW - Aqualine Abstracts; Water Resources Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts; Pollution Abstracts KW - Pollution monitoring KW - Pore water KW - Phytobenthos KW - Heavy metals KW - Population density KW - Benthic environment KW - Colonization KW - Pollutants KW - Assay KW - Sediment Contamination KW - Algae KW - Bays KW - Marine KW - Sediment pollution KW - Brackish KW - Toxicity KW - Biomass KW - Contaminated sediments KW - Sediments KW - Macrophytes KW - Community composition KW - Histology KW - Water Pollution Effects KW - Species diversity KW - Microorganisms KW - Population structure KW - Periphyton KW - Toxicity (see also Lethal limits) KW - Zoobenthos KW - ASW, USA, Florida, Florida Bay KW - Plankton KW - Benthos KW - D 04801:Pollution monitoring and detection KW - P 1000:MARINE POLLUTION KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - AQ 00008:Effects of Pollution KW - O 4060:Pollution - Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18012696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Periphyton+and+sediment+bioassessment+in+North+Florida+Bay&rft.au=Lewis%2C+MA%3BWeber%2C+DE%3BGoodman%2C+L+R%3BStanley%2C+R+S%3BCraven%2C+W+G%3BPatrick%2C+J+M%3BQuarles%2C+R+L%3BRoush%2C+TH%3BMacauley%2C+J+M&rft.aulast=Lewis&rft.aufirst=MA&rft.date=2000-12-01&rft.volume=65&rft.issue=3&rft.spage=503&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pore water; Sediment pollution; Pollution monitoring; Phytobenthos; Heavy metals; Population density; Toxicity; Biomass; Colonization; Community composition; Histology; Species diversity; Microorganisms; Population structure; Periphyton; Zoobenthos; Benthos; Bays; Benthic environment; Sediments; Macrophytes; Pollutants; Assay; Toxicity (see also Lethal limits); Contaminated sediments; Water Pollution Effects; Sediment Contamination; Plankton; Algae; ASW, USA, Florida, Florida Bay; Marine; Brackish ER - TY - JOUR T1 - The Effect of a Vitamin A Acetate Diet on Ultraviolet Radiation-induced Immune Suppression as Measured by Contact Hypersensitivity in Mice AN - 17856791; 5973125 AB - The adverse health effects caused by increased exposure to ultraviolet radiation (UVR) due to deterioration of stratospheric ozone are of major concern. These health effects include sunburn, skin cancer, cataracts and immune suppression. Immune suppression has been associated with the release of cytokines, a defect in antigen presentation, induction of suppressor T cells and suppression of contact hypersensitivity (CH). CH is typically assessed by the mouse ear swelling test (MEST). Previous studies have demonstrated enhanced CH responses with vitamin A acetate (VAA) dietary supplementation assessed by MEST and the local lymph node assay (LLNA). To determine the effect that VAA has on UVR-induced immune suppression, we examined both the induction and elicitation phases of CH using murine models. The MEST was used to evaluate the interaction of UVR and VAA on CH elicitation. However, a positive MEST response requires that the induction phase as well as the elicitation phase of CH be functional. The LLNA was used to evaluate the interaction of UVR and VAA only on CH induction. We tested the hypothesis that mice maintained on a VAA-enriched diet are more resistant to UVR-induced immune suppression (CH) than those maintained on a control diet. Mice were maintained on a VAA-enriched or the control diet for 3 weeks and then exposed to UVR 3 days prior to sensitization with 2,4-dinitrofluorobenzene (DNFB). VAA enhanced the MEST response in both UVR-exposed and non-UVR-exposed mice. The VAA-enriched diet did not significantly alter the LLNA response in either UVR- or non-UVR-exposed mice. However, there was significant suppression in CH by UVR as measured by the LLNA. These results indicate that (1) the VAA-enriched diet does not restore the number of proliferating cells in the CH induction phase of UVR-induced immunosuppression; (2) the immunosuppressive effects of UVR affect the induction phase of CH; and (3) the LLNA should be examined as an alternative to the MEST for measurement of UVR-induced immunosuppression. The data indicate that the VAA-enriched diet enhanced the elicitation response (MEST) but not the earlier induction phase (LLNA). Further studies are necessary to define mechanisms of action, but modulation of cytokines and effects of specific lymphocyte subsets, as well as systemic effects and local modulation at the site of elicitation are possible. Additionally, future studies to evaluate the effect of the VAA-enriched diet when multiple doses of both UVR and DNFB are used would be of interest for both the LLNA and MEST endpoints. JF - Photochemistry and Photobiology AU - Sailstad, D M AU - Boykin, E H AU - Slade, R AU - Doerfler, D L AU - Selgrade, M K AD - United States Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Research Triangle Park, NC Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 766 EP - 771 PB - American Society for Photobiology VL - 72 IS - 6 SN - 0031-8655, 0031-8655 KW - Toxicology Abstracts KW - Photochemistry KW - Diets KW - Contact dermatitis KW - Cataracts KW - Local lymph node assay KW - Animal models KW - Skin cancer KW - Ear KW - Lymphocytes KW - Antigen presentation KW - Swelling KW - Acetic acid KW - U.V. radiation KW - Vitamin A KW - Dietary supplements KW - Lymphocytes T KW - Cytokines KW - Suppressor cells KW - Ozone KW - Immunosuppression KW - X 24210:Radiation & radioactive materials UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17856791?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Photochemistry+and+Photobiology&rft.atitle=The+Effect+of+a+Vitamin+A+Acetate+Diet+on+Ultraviolet+Radiation-induced+Immune+Suppression+as+Measured+by+Contact+Hypersensitivity+in+Mice&rft.au=Sailstad%2C+D+M%3BBoykin%2C+E+H%3BSlade%2C+R%3BDoerfler%2C+D+L%3BSelgrade%2C+M+K&rft.aulast=Sailstad&rft.aufirst=D&rft.date=2000-12-01&rft.volume=72&rft.issue=6&rft.spage=766&rft.isbn=&rft.btitle=&rft.title=Photochemistry+and+Photobiology&rft.issn=00318655&rft_id=info:doi/10.1562%2F0031-8655%282000%290722.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0031-8655&volume=72&page=766 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Diets; Photochemistry; Contact dermatitis; Cataracts; Animal models; Local lymph node assay; Skin cancer; Ear; Lymphocytes; Swelling; Antigen presentation; Acetic acid; U.V. radiation; Dietary supplements; Vitamin A; Lymphocytes T; Cytokines; Suppressor cells; Immunosuppression; Ozone DO - http://dx.doi.org/10.1562/0031-8655(2000)072<0766:TEOAVA>2.0.CO;2 ER - TY - CONF T1 - Identification of Functional Domains Affected by Developmental Exposure to Methylmercury: Faroe Islands and Related Studies AN - 17820833; 4856609 AB - The Faroe Islands study is a prospective study designed to assess the neurological and behavioral consequences of in utero exposure to methylmercury (meHg). Maternal exposure to meHg was through consumption of fish and intermittent higher-level exposure through pilot whale meat, while consumption of pilot whale blubber resulted in maternal exposure to PCBs. Analysis of the neurobehavioral domains affected revealed impairment in attention, memory, and auditory processing, impairment in primary auditory function, and to a lesser extent motor impairment. For four of the eight endpoints affected by meHg exposure at p < .10, impairment was also correlated (p < .10) with in utero PCB exposure as measured by cord tissue PCB levels. Further analyses provide evidence for an independent effect of PCBs and meHg on these endpoints. Cross-sectional studies in a smaller number of children in the Amazon and Madeira by the same group of investigators, in which average meHg maternal hair levels were about twice as high those in the Faroe Islands, identified auditory, visual, and/or motor deficits, with little or no evidence of deficits in attention or memory. However, the results of the cross-sectional studies must be interpreted with caution, due to limited statistical power as well as a lack of opportunity to correlate effects to in utero exposure. JF - Neurotoxicology AU - Rice, D C Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 1039 EP - 1044 PB - Intox Press VL - 21 IS - 6 KW - man KW - in utero exposure KW - Faroe Is. KW - dimethylmercury KW - Toxicology Abstracts; CSA Neurosciences Abstracts KW - Prenatal experience KW - Motor task performance KW - Intrauterine exposure KW - Children KW - Attention task KW - Memory KW - Behavior KW - Epidemiology KW - Cognitive ability KW - Neurotoxicity KW - Dimethylmercury KW - Mercury KW - Seafood KW - Hearing KW - X 24162:Chronic exposure KW - N3 11139:Toxicological and psychoactive drug correlates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17820833?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Neurotoxicology&rft.atitle=Identification+of+Functional+Domains+Affected+by+Developmental+Exposure+to+Methylmercury%3A+Faroe+Islands+and+Related+Studies&rft.au=Rice%2C+D+C&rft.aulast=Rice&rft.aufirst=D&rft.date=2000-12-01&rft.volume=21&rft.issue=6&rft.spage=1039&rft.isbn=&rft.btitle=&rft.title=Neurotoxicology&rft.issn=0161813X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Application of DNPH Derivatization with LC/MS to the Identification of Polar Carbonyl Disinfection By-products in Drinking Water AN - 17811364; 4853895 AB - A qualitative method using 2,4-dinitrophenylhydrazine (DNPH) derivatization followed by analysis with liquid chromatography (LC)/negative ion-electrospray mass spectrometry (MS) was developed for analyzing and identifying highly polar aldehydes and ketones in ozonated drinking water. Using this method, aldehydes could be easily distinguished from ketones by differences in their mass spectra and chromatographic behavior. Results for many polar-substituted aldehyde and ketone standards are presented, as well as the identification of polar disinfection by-products (DBPs) in ozonated drinking water from full-scale plants and laboratory-scale ozonation of humic acid. One polar DBP identified has not been previously reported. This method could also potentially be used as a tool to identify carbonyl-containing DBPs from disinfectants other than ozone. However, the detection limits for the DNPH-LC/MS method are not as low as for the pentafluorobenzylhydroxylamine (PFBHA)-gas chromatography (GC)/MS method (LC/MS is typically not as sensitive as GC/MS). Therefore, it is not recommended that this method replace the PFBHA-GC/MS method, but be used as a supplement to enable the identification of highly polar carbonyl-containing DBPs that would not be possible by GC/MS. JF - Ozone: Science & Engineering AU - Richardson, S D AU - Caughran, T V AU - Poiger, T AU - Guo, Y AU - Crumley, F G AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory, Athens, GA 30605, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 653 EP - 675 VL - 22 IS - 6 SN - 0191-9512, 0191-9512 KW - Water Resources Abstracts; Aqualine Abstracts KW - Water supplies (Potable) KW - Mass Spectrometry KW - Disinfection KW - Chromatography KW - Byproducts KW - Humic Acids KW - Humic matter KW - Drinking Water KW - Spectrometry (Mass) KW - Ozonation KW - SW 3060:Water treatment and distribution KW - AQ 00004:Water Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17811364?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ozone%3A+Science+%26+Engineering&rft.atitle=Application+of+DNPH+Derivatization+with+LC%2FMS+to+the+Identification+of+Polar+Carbonyl+Disinfection+By-products+in+Drinking+Water&rft.au=Richardson%2C+S+D%3BCaughran%2C+T+V%3BPoiger%2C+T%3BGuo%2C+Y%3BCrumley%2C+F+G&rft.aulast=Richardson&rft.aufirst=S&rft.date=2000-12-01&rft.volume=22&rft.issue=6&rft.spage=653&rft.isbn=&rft.btitle=&rft.title=Ozone%3A+Science+%26+Engineering&rft.issn=01919512&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Water supplies (Potable); Disinfection; Chromatography; Byproducts; Spectrometry (Mass); Humic matter; Ozonation; Mass Spectrometry; Drinking Water; Humic Acids ER - TY - JOUR T1 - Ozone indicators determined at rural sites in the eastern United States by two monitoring networks AN - 17810666; 4850855 AB - Ozone levels at Clean Air Status and Trends Network (CASTNet) and nearby rurally-designated State and Local Air Monitoring Stations (SLAMS) sites located in the eastern United States (U.S.) are compared using daily indicators (i.e., maximum, range, and SUM06) based on hourly O sub(3) measurements. Comparisons are also made using monthly and summertime three-month SUM06 determinations aggregated from daily data. Comparison of O sub(3) indicators at the paired CASTNet-SLAMS sites generally shows better agreement for O sub(3) maximum than for range or SUM06. The highest correlation of daily O sub(3) indicators occurs for paired sites that are separated by less than 100 miles, and the correlation diminishes with increasing separation distance. Correlation coefficients exceed 0.70 in 49% of the comparisons of maximum, in 23% of range comparisons and in 5% of SUM06 comparisons, suggesting that substitution of SLAMS for CASTNet O sub(3) measurements would fail to capture a substantial amount of the variability in O sub(3) indicators present at the CASTNet sites. Correlations of O sub(3) indicators at CASTNet and paired nearby SLAMS sites are greater than or equal to 0.80 in a relatively small number of cases. Despite the high correlation in even these cases, O sub(3) behavior at paired sites is not identical and shows systematic differences that are reflected in the O sub(3) minimum, hourly average concentrations, and the monthly and three-month SUM06. Ozone measurements at nearby rurally-designated SLAMS sites may not capture the 'rural' nature of the air quality being monitored at CASTNet sites and, in most cases, may not be sufficiently representative of the concentration at CASTNet sites to permit O sub(3) measurements at SLAMS sites to be used in lieu of measurements at CASTNet sites. As a result, if rural O sub(3) concentration data are needed, then O sub(3) monitoring at carefully chosen, rurally representative sites is recommended. JF - Environmental Monitoring and Assessment AU - Sickles, JE II AU - Suggs, J C AU - Vorburger, L M AD - US EPA, ORD, NERL, Research Triangle Park, NC, USA, sickles.joseph@epa.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 485 EP - 502 VL - 65 IS - 3 SN - 0167-6369, 0167-6369 KW - USA, Eastern KW - Pollution Abstracts KW - Air pollution KW - Pollution monitoring KW - Rural areas KW - Ozone KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17810666?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Ozone+indicators+determined+at+rural+sites+in+the+eastern+United+States+by+two+monitoring+networks&rft.au=Sickles%2C+JE+II%3BSuggs%2C+J+C%3BVorburger%2C+L+M&rft.aulast=Sickles&rft.aufirst=JE&rft.date=2000-12-01&rft.volume=65&rft.issue=3&rft.spage=485&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ozone; Rural areas; Air pollution; Pollution monitoring ER - TY - JOUR T1 - Perinatal Exposure to the Phthalates DEHP, BBP, and DINP, but Not DEP, DMP, or DOTP, Alters Sexual Differentiation of the Male Rat AN - 17800637; 4845805 AB - In mammals, exposure to antiandrogenic chemicals during sexual differentiation can produce malformations of the reproductive tract. Perinatal administration of AR antagonists like vinclozolin and procymidone or chemicals like di(2-ethylhexyl) phthalate (DEHP) that inhibit fetal testicular testosterone production demasculinize the males such that they display reduced anogenital distance (AGD), retained nipples, cleft phallus with hypospadias, undescended testes, a vaginal pouch, epididymal agenesis, and small to absent sex accessory glands as adults. In addition to DEHP, di-n-butyl (DBP) also has been shown to display antiandrogenic activity and induce malformations in male rats. In the current investigation, we examined several phthalate esters to determine if they altered sexual differentiation in an antiandrogenic manner. We hypothesized that the phthalate esters that altered testis function in the pubertal male rat would also alter testis function in the fetal male and produce malformations of androgen-dependent tissues. In this regard, we expected that benzyl butyl (BBP) and diethylhexyl (DEHP) phthalate would alter sexual differentiation, while dioctyl tere- (DOTP or DEHT), diethyl (DEP), and dimethyl (DMP) phthalate would not. We expected that the phthalate mixture diisononyl phthalate (DINP) would be weakly active due to the presence of some phthalates with a 6-7 ester group. DEHP, BBP, DINP, DEP, DMP, or DOTP were administered orally to the dam at 0.75 g/kg from gestational day (GD) 14 to postnatal day (PND) 3. None of the treatments induced overt maternal toxicity or reduced litter sizes. While only DEHP treatment reduced maternal weight gain during the entire dosing period by about 15 g, both DEHP and DINP reduced pregnancy weight gain to GD 21 by 24 g and 14 g, respectively. DEHP and BBP treatments reduced pup weight at birth (15%). Male (but not female) pups from the DEHP and BBP groups displayed shortened AGDs (about 30%) and reduced testis weights (about 35%). As infants, males in the DEHP, BBP, and DINP groups displayed femalelike areolas/nipples (87, 70, and 22% (p < 0.01), respectively, versus 0% in other groups). All three of the phthalate treatments that induced areolas also induced a significant incidence of reproductive malformations. The percentages of males with malformations were 82% (p < 0.0001) for DEHP, 84% (p < 0.0001) for BBP, and 7.7% (p < 0.04) in the DINP group. In summary, DEHP, BBP, and DINP all altered sexual differentiation, whereas DOTP, DEP, and DMP were ineffective at this dose. Whereas DEHP and BBP were of equivalent potency, DINP was about an order of magnitude less active. JF - Toxicological Sciences AU - Gray, LE Jr AU - Ostby, J AU - Furr, J AU - Price, M AU - Veeramachaneni, DNR AU - Parks, L AD - Endocrinology Branch, MD 72, U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Reproductive Toxicology Division, Research Triangle Park, North Carolina 27711, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 350 EP - 365 VL - 58 IS - 2 SN - 1096-6080, 1096-6080 KW - males KW - rats KW - benzyl butyl phthalate KW - bis(2-ethylhexyl) phthalate KW - diisononyl phthalate KW - phthalate esters KW - sexual development KW - Toxicology Abstracts KW - Prenatal experience KW - Perinatal exposure KW - Teratogenicity KW - X 24152:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17800637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Perinatal+Exposure+to+the+Phthalates+DEHP%2C+BBP%2C+and+DINP%2C+but+Not+DEP%2C+DMP%2C+or+DOTP%2C+Alters+Sexual+Differentiation+of+the+Male+Rat&rft.au=Gray%2C+LE+Jr%3BOstby%2C+J%3BFurr%2C+J%3BPrice%2C+M%3BVeeramachaneni%2C+DNR%3BParks%2C+L&rft.aulast=Gray&rft.aufirst=LE&rft.date=2000-12-01&rft.volume=58&rft.issue=2&rft.spage=350&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Teratogenicity; Perinatal exposure; Prenatal experience ER - TY - JOUR T1 - Statistical issues in the study of air pollution involving airborne particulate matter AN - 17799956; 4845542 AB - Epidemiological research in the early 1990s focusing on health effects of airborne particulate matter pointed to a statistical association between increases in concentration of particles in ambient air and increases in daily nonaccidental mortality, particularly among the elderly. These results appear consistent across a range of U.S. cities. This and other scientific and policy information formed the basis on which the U.S. Environmental Protection Agency (USEPA) promulgated revised, stricter air quality standards for particulate matter in 1997. The schedule for implementing the revised standards is coincident with the completion by USEPA of a Second National Ambient Air Quality Standards (NAAQS) review for ambient particulate matter by July 2002 based on current science and policy information. Concurrently, the U.S. Congress directed USEPA to seek advice from the National Academy of Sciences, resulting in formation of the National Research Council Committee on Research Priorities for Airborne Particulate Matter. In its 1998 report, the Committee identified 10 research priorities for setting regulatory standards for particulate matter. The 10th priority addressed statistical issues. To explore these issues, the National Research Center for Statistics and the Environment and the USEPA organized a 1998 interdisciplinary Workshop on Particulate Methodology. A primary objective of the Workshop was to initiate a statistical research program relevant to setting air quality standards for ambient particulate matter pollution to be completed during the second NAAQS review. This paper reports findings and recommendations from the Workshop and an agenda for statistical research motivated therefrom relevant to the study of air pollution involving particulate matter and to setting particulate matter air quality standards. JF - Environmetrics AU - Cox, L H AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory (MD-75), Research Triangle Park, NC 27711 USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 611 EP - 626 VL - 11 IS - 6 SN - 1180-4009, 1180-4009 KW - USA KW - Pollution Abstracts KW - Air quality standards KW - Government policies KW - Air pollution control KW - Particulates KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17799956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmetrics&rft.atitle=Statistical+issues+in+the+study+of+air+pollution+involving+airborne+particulate+matter&rft.au=Cox%2C+L+H&rft.aulast=Cox&rft.aufirst=L&rft.date=2000-12-01&rft.volume=11&rft.issue=6&rft.spage=611&rft.isbn=&rft.btitle=&rft.title=Environmetrics&rft.issn=11804009&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Statistical analysis of particulate matter air pollution. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Air quality standards; Particulates; Air pollution control; Government policies ER - TY - JOUR T1 - The Effects of Atrazine on Female Wistar Rats: An Evaluation of the Protocol for Assessing Pubertal Development and Thyroid Function AN - 17799316; 4845806 AB - The effects of atrazine (ATR), a chlorotriazine herbicide, on the onset of puberty were evaluated in Wistar rats. Female rats were dosed by oral gavage from postnatal day(s) (PND) 22 through PND 41 with 0, 12.5, 25, 50, 100, or 200 mg ATR/kg. Vaginal opening (VO) was significantly delayed 3.4, 4.5, or greater than 6.8 days by 50, 100, and 200 mg/kg, respectively. VO had not occurred in 4 of 15 females in the 200 mg/kg group by the time of necropsies (PND 41). Body weight (bw) at necropsy was reduced in the 200 mg/kg group by 11.6%, but was not different from the control (0) in the 50 and 100 mg/kg groups. To examine the influence of reduced bw on pubertal development, a group of pair-fed controls was included whose daily food intake was dependent upon the amount consumed by their counterpart in the 200 mg/kg group. Although necropsy bw was reduced to the same extent as the ATR females, VO in the pair-fed controls was not significantly delayed. Adrenal, kidney, pituitary, ovary, and uterine weights were reduced by 200 mg/kg ATR. Serum T sub(3), T sub(4), and TSH were unaltered by ATR, which was consistent with no histopathologic/morphologic changes in the thyroid. Estrous cyclicity was monitored in a second group of females from VO to PND 149. The number of females displaying regular 4- or 5-day estrous cycles during the first 15-day interval after VO was lower in the 100 and 200 mg/kg ATR and pair-fed controls. Irregular cycles were characterized by extended periods of diestrus. By the end of the second 15-day interval (PND 57-71), no effects on estrous cyclicity were observed. These data show that ATR can delay the onset of puberty and alter estrous cyclicity in the female Wistar rat (NOAEL of 25 mg/kg). Reduced food consumption and bw did not account for the delay in VO, because this effect was not observed in the pair-fed controls. In addition, the effect on estrous cyclicity was observed in the 100 mg/kg ATR group where no significant reduction in bw was observed. JF - Toxicological Sciences AU - Laws, S C AU - Ferrell, J M AU - Stoker, TE AU - Schmid, J AU - Cooper, R L AD - Endocrinology Branch, Reproductive Toxicology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 366 EP - 376 VL - 58 IS - 2 SN - 1096-6080, 1096-6080 KW - females KW - rats KW - development KW - puberty KW - Toxicology Abstracts KW - Organochlorine compounds KW - Adolescence KW - Atrazine KW - Thyroid KW - Herbicides KW - X 24132:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17799316?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=The+Effects+of+Atrazine+on+Female+Wistar+Rats%3A+An+Evaluation+of+the+Protocol+for+Assessing+Pubertal+Development+and+Thyroid+Function&rft.au=Laws%2C+S+C%3BFerrell%2C+J+M%3BStoker%2C+TE%3BSchmid%2C+J%3BCooper%2C+R+L&rft.aulast=Laws&rft.aufirst=S&rft.date=2000-12-01&rft.volume=58&rft.issue=2&rft.spage=366&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Organochlorine compounds; Adolescence; Thyroid; Atrazine; Herbicides ER - TY - JOUR T1 - The Plasticizer Diethylhexyl Phthalate Induces Malformations by Decreasing Fetal Testosterone Synthesis during Sexual Differentiation in the Male Rat AN - 17799291; 4845804 AB - Phthalate esters (PE) such as DEHP are high production volume plasticizers used in vinyl floors, food wraps, cosmetics, medical products, and toys. In spite of their widespread and long-term use, most PE have not been adequately tested for transgenerational reproductive toxicity. This is cause for concern, because several recent investigations have shown that DEHP, BBP, DBP, and DINP disrupt reproductive tract development of the male rat in an antiandrogenic manner. The present study explored whether the antiandrogenic action of DEHP occurs by (1) inhibiting testosterone (T) production, or by (2) inhibiting androgen action by binding to the androgen receptor (AR). Maternal DEHP treatment at 750 mg/kg/day from gestational day (GD) 14 to postnatal day (PND) 3 caused a reduction in T production, and reduced testicular and whole-body T levels in fetal and neonatal male rats from GD 17 to PND 2. As a consequence, anogenital distance (AGD) on PND 2 was reduced by 36% in exposed male, but not female, offspring. By GD 20, DEHP treatment also reduced testis weight. Histopathological evaluations revealed that testes in the DEHP treatment group displayed enhanced 3 beta -HSD staining and increased numbers of multifocal areas of Leydig cell hyperplasia as well as multinucleated gonocytes as compared to controls at GD 20 and PND 3. In contrast to the effects of DEHP on T levels in vivo, neither DEHP nor its metabolite MEHP displayed affinity for the human androgen receptor at concentrations up to 10 mu M in vitro. These data indicate that DEHP disrupts male rat sexual differentiation by reducing T to female levels in the fetal male rat during a critical stage of reproductive tract differentiation. JF - Toxicological Sciences AU - Parks, L G AU - Ostby, J S AU - Lambright, C R AU - Abbott, B D AU - Klinefelter, G R AU - Barlow, N J AU - Gray, LE Jr AD - Endocrinology Branch, MD-72, U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Reproductive Toxicology Division, Research Triangle Park, North Carolina 27711, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 339 EP - 349 VL - 58 IS - 2 SN - 1096-6080, 1096-6080 KW - rats KW - males KW - bis(2-ethylhexyl) phthalate KW - Toxicology Abstracts KW - Testosterone KW - Plasticizers KW - Teratogenicity KW - Sex differentiation KW - Fetuses KW - X 24152:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17799291?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=The+Plasticizer+Diethylhexyl+Phthalate+Induces+Malformations+by+Decreasing+Fetal+Testosterone+Synthesis+during+Sexual+Differentiation+in+the+Male+Rat&rft.au=Parks%2C+L+G%3BOstby%2C+J+S%3BLambright%2C+C+R%3BAbbott%2C+B+D%3BKlinefelter%2C+G+R%3BBarlow%2C+N+J%3BGray%2C+LE+Jr&rft.aulast=Parks&rft.aufirst=L&rft.date=2000-12-01&rft.volume=58&rft.issue=2&rft.spage=339&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Fetuses; Sex differentiation; Plasticizers; Teratogenicity; Testosterone ER - TY - JOUR T1 - A Computationally Based Identification Algorithm for Estrogen Receptor Ligands: Part 1. Predicting hER alpha Binding Affinity AN - 17799182; 4845796 AB - The common reactivity pattern (COREPA) approach is a 3-dimensional, quantitative structure activity relationship (3-D QSAR) technique that permits identification and quantification of specific global and local stereoelectronic characteristics associated with a chemical's biological activity. It goes beyond conventional 3-D QSAR approaches by incorporating dynamic chemical conformational flexibility in ligand-receptor interactions. The approach provides flexibility in screening chemical data sets in that it helps establish criteria for identifying false positives and false negatives, and is not dependent upon a predetermined and specified toxicophore or an alignment of conformers to a lead compound. The algorithm was recently used to screen chemical data sets for rat androgen receptor binding affinity. To further explore the potential application of the algorithm in establishing reactivity patterns for human estrogen receptor alpha (hER alpha ) binding affinity, the stereoelectronic requirements associated with the binding affinity of 45 steroidal and nonsteroidal ligands to the receptor were defined. Reactivity patterns for relative hER alpha binding affinity (RBA; 17 beta -estradiol = 100%) were established based on global nucleophilicity, interatomic distances between electronegative heteroatoms, and electron donor capability of heteroatoms. These reactivity patterns were used to establish descriptor profiles for identifying and ranking compounds with RBA of> 150%, 100-10%, 10-1%, and 1-0.1%. Increasing specificity of reactivity patterns was detected for ligand data sets with RBAs above 10%. Using the results of this analysis, an exploratory expert system was developed for use in ranking relative ER binding affinity potential for large chemical data sets. JF - Toxicological Sciences AU - Bradbury, S AU - Kamenska, V AU - Schmieder, P AU - Ankley, G AU - Mekenyan, O AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, Minnesota 55804, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 253 EP - 269 VL - 58 IS - 2 SN - 1096-6080, 1096-6080 KW - binding affinity KW - ligands KW - xenoestrogens KW - Toxicology Abstracts KW - Mathematical models KW - Estrogen receptors KW - Toxicity testing KW - X 24221:Toxicity testing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17799182?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=A+Computationally+Based+Identification+Algorithm+for+Estrogen+Receptor+Ligands%3A+Part+1.+Predicting+hER+alpha+Binding+Affinity&rft.au=Bradbury%2C+S%3BKamenska%2C+V%3BSchmieder%2C+P%3BAnkley%2C+G%3BMekenyan%2C+O&rft.aulast=Bradbury&rft.aufirst=S&rft.date=2000-12-01&rft.volume=58&rft.issue=2&rft.spage=253&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Toxicity testing; Mathematical models; Estrogen receptors ER - TY - JOUR T1 - Pesticide and Trace Metal Concentrations in Queensland Estuarine Crabs AN - 17799107; 4845711 AB - Trace metals, metalloids and pesticide content were quantified in intertidal burrowing crabs Australoplax tridentata and a portunid Scylla serrata sampled from estuaries on the east coast of Australia between Cairns and Brisbane. Residues of dieldrin occurred at all locations, heptachlor epoxide and DDT (principally metabolites DDD and DDE) at most, reflecting historical use. Chlordane, chlorpyrifos and endosulfan were only detected in crabs in the urban Brisbane area, and neither hexachlorobenzene (HCB) or polychlorinated biphenyls (PCBs) were quantifiable. Calculations of ambient exposures to organochlorines based on residues in crab tissues indicated that dieldrin exceeded national water quality guidelines for protection of aquatic ecosystems at all sampling locations, but exposure to DDT and its metabolites was below the threshold of concern. Concentrations of trace metals and metalloids generally reflected sediment data and likely sources. JF - Marine Pollution Bulletin AU - Mortimer, M R AD - Division of Environmental and Technical Services, Queensland Environmental Protection Agency, Brisbane, Qld, Australia Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 359 EP - 366 VL - 41 IS - 7-12 SN - 0025-326X, 0025-326X KW - Australia, Queensland KW - Australia, Queensland, Cleveland Bay KW - Australoplax tridentata KW - Scylla serrata KW - chlorpyrifos KW - dieldrin KW - marine crustaceans KW - Toxicology Abstracts; Aqualine Abstracts; Water Resources Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Estuarine organisms KW - Pollution monitoring KW - Trace-metal KW - Polychlorinated Biphenyls KW - Pollution effects KW - Crabs KW - Burrowing organisms KW - Polychlorinated biphenyls KW - Bioindicators KW - ISEW, Australia, Queensland KW - Pesticides (see also Bactericides, Weedkillers) KW - DDD KW - Crustacea KW - Chlordane KW - Estuaries KW - Dieldrin KW - DDE KW - Trace Metals KW - Bioaccumulation KW - Crustaceans (Decapod) (Crabs) KW - Marine pollution KW - Heptachlor KW - Pesticides KW - DDT KW - Trace metals KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - X 24166:Environmental impact KW - P 1000:MARINE POLLUTION KW - Q5 08504:Effects on organisms KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution KW - X 24133:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17799107?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Pollution+Bulletin&rft.atitle=Pesticide+and+Trace+Metal+Concentrations+in+Queensland+Estuarine+Crabs&rft.au=Mortimer%2C+M+R&rft.aulast=Mortimer&rft.aufirst=M&rft.date=2000-12-01&rft.volume=41&rft.issue=7-12&rft.spage=359&rft.isbn=&rft.btitle=&rft.title=Marine+Pollution+Bulletin&rft.issn=0025326X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Sources and Consequences of Pollutants in the Great Barrier Reef. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Burrowing organisms; Estuarine organisms; Pollution monitoring; Bioaccumulation; DDE; DDT; Pesticides; Pollution effects; Trace metals; Marine pollution; Dieldrin; Estuaries; Bioindicators; Heptachlor; Chlordane; Crustacea; Trace-metal; Polychlorinated biphenyls; Crustaceans (Decapod) (Crabs); Pesticides (see also Bactericides, Weedkillers); DDD; Trace Metals; Polychlorinated Biphenyls; Crabs; ISEW, Australia, Queensland ER - TY - JOUR T1 - An HPLC Method with UV Detection, pH Control, and Reductive Ascorbic Acid for Cyanuric Acid Analysis in Water AN - 17798445; 4845563 AB - Every year over 250 million pounds of cyanuric acid (CA) and chlorinated isocyanurates are produced industrially. These compounds are standard ingredients in formulations for household bleaches, industrial cleansers, dishwasher compounds, general sanitizers, and chlorine stabilizers. The method developed for CA using high-performance liquid chromatography (HPLC) with UV detection simplifies and optimizes certain parameters of previous methodologies by effective pH control of the eluent (95% phosphate buffer: 5% methanol, v/v) to the narrow pH range of 7.2-7.4. UV detection was set at the optimum wavelength of 213 nm where the cyanuric ion absorbs strongly. Analysis at the lower pH range of 6.8-7.1 proved inadequate due to CA keto-enol tautomerism, while at pHs of 7.4 proved more sensitive but their use was rejected because of CA elution at the chromatographic void volume and due to chemical interferences. The complex equilibria of chlorinated isocyanurates and associated species were suppressed by using reductive ascorbic acid to restrict the products to CA. UV, HPLC-UV, and electrospray ionization mass spectrometry techniques were combined to monitor the reactive chlorinated isocyanurates and to support the use of ascorbic acid. The resulting method is reproducible and measures CA in the 0.5-125 mg/L linear concentration range with a method detection limit of 0.05 mg/L in water. JF - Analytical Chemistry (Washington) AU - Cantu, R AU - Evans, O AU - Kawahara, F K AU - Shoemaker, JA AU - Dufour AD - National Exposure Research Laboratory, National Risk Management Research Laboratory, United States Environmental Protection Agency, 26 West Martin Luther King Drive, Cincinnati, Ohio 45268, USA, Cantu.Ricardo@epa.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 5820 EP - 5828 VL - 77 IS - 23 SN - 0003-2700, 0003-2700 KW - cyanuric acid KW - isocyanurates KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Pollutant Identification KW - Water Pollution KW - Pollution detection KW - Chromatography (Liquid) KW - Water Analysis KW - Chemical Analysis KW - Hydrogen Ion Concentration KW - Water analysis KW - Hydrogen ion concentrations KW - Water pollution KW - Pollution (see also contamination) KW - Analytical Methods KW - Liquid chromatography KW - Acids KW - Liquid Chromatography KW - Acidity KW - Industrial pollution KW - Pollution (Water) KW - pH KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17798445?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+Chemistry+%28Washington%29&rft.atitle=An+HPLC+Method+with+UV+Detection%2C+pH+Control%2C+and+Reductive+Ascorbic+Acid+for+Cyanuric+Acid+Analysis+in+Water&rft.au=Cantu%2C+R%3BEvans%2C+O%3BKawahara%2C+F+K%3BShoemaker%2C+JA%3BDufour&rft.aulast=Cantu&rft.aufirst=R&rft.date=2000-12-01&rft.volume=77&rft.issue=23&rft.spage=5820&rft.isbn=&rft.btitle=&rft.title=Analytical+Chemistry+%28Washington%29&rft.issn=00032700&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Pollution detection; Liquid chromatography; Industrial pollution; Water pollution; pH; Pollution (see also contamination); Chromatography (Liquid); Acidity; Pollution (Water); Water analysis; Hydrogen ion concentrations; Pollutant Identification; Water Pollution; Water Analysis; Analytical Methods; Acids; Chemical Analysis; Liquid Chromatography; Hydrogen Ion Concentration ER - TY - JOUR T1 - Terminal electron accepting processes in the alluvial sediments of a headwater stream AN - 17778643; 4828689 AB - Chemical fluxes between catchments and streams are influenced by biogeochemical processes in the groundwater-stream water (GW-SW) ecotone, the interface between stream surface water and groundwater. Terminal electron accepting processes (TEAPs) that are used in respiration of organic C in anoxic environments may have a strong effect on nutrient dynamics and water chemistry. Concentrations of oxidized and reduced forms of terminal electron acceptors (dissolved O sub(2), NO sub(3) super(-), Fe super(2+), SO sub(4) super(2-), and CH sub(4)) were measured in networks of vertically nested wells installed beneath the surface stream and in the near-stream aquifer of a headwater catchment. Tracer addition experiments were conducted in surface and groundwater environments of a 1st-order montane stream to characterize hydrologic fluxes between the stream and aquifer, and to quantify ecosystem retention of terminal electron acceptors (NO sub(3) super(-) and SO sub(4) super(2-)) in the GW-SW ecotone. Sulfate retention was evident in both hyporheic and groundwater environments. Distribution of important redox sensitive solutes varied predictably with changing hydrologic residence time of water in the GW-SW ecotone. Results suggest a strong hydrologic control of TEAPs and ecosystem retention of biologically important solutes in the GW-SW ecotone related to characteristics of GW-SW mixing and residence time of water in the hyporheic zone. JF - Journal of the North American Benthological Society AU - Morrice, JA AU - Dahm, C N AU - Valett, H M AU - Unnikrishna, P V AU - Campana, ME AD - Us Environmental Protection Agency, Mid-Continent Ecology Division, 6201 Congdon Blvd, Duluth, MN 55804, USA, morrice.john@epa.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 593 EP - 608 VL - 19 IS - 4 SN - 0887-3593, 0887-3593 KW - ecotone KW - headwater KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Aquifers KW - Catchment area KW - Ecosystems KW - Biogeochemistry KW - Respiration KW - Organic carbon KW - Nutrients KW - Streams KW - Alluvial deposits KW - Sediments KW - Stream flow KW - Tracers KW - Sediment-water interface KW - Anoxic conditions KW - Surface-groundwater Relations KW - Wells KW - Ground water KW - Nitrogen cycle KW - Chemical analysis KW - SW 0880:Chemical processes KW - Q2 09184:Composition of water KW - Q2 09187:Geochemistry of sediments KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17778643?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+North+American+Benthological+Society&rft.atitle=Terminal+electron+accepting+processes+in+the+alluvial+sediments+of+a+headwater+stream&rft.au=Morrice%2C+JA%3BDahm%2C+C+N%3BValett%2C+H+M%3BUnnikrishna%2C+P+V%3BCampana%2C+ME&rft.aulast=Morrice&rft.aufirst=JA&rft.date=2000-12-01&rft.volume=19&rft.issue=4&rft.spage=593&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+North+American+Benthological+Society&rft.issn=08873593&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Catchment area; Sediment-water interface; Anoxic conditions; Biogeochemistry; Organic carbon; Ground water; Nitrogen cycle; Chemical analysis; Alluvial deposits; Stream flow; Aquifers; Tracers; Surface-groundwater Relations; Ecosystems; Wells; Respiration; Nutrients; Streams; Sediments ER - TY - JOUR T1 - Prediction of Dioxin/Furan Incinerator Emissions Using Low-Molecular-Weight Volatile Products of Incomplete Combustion AN - 17748270; 4811282 AB - Emissions of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDDs/Fs) from incinerators and other stationary combustion sources are of environmental concern because of the toxicity of certain PCDD/F congeners. Measurement of trace levels of PCDDs/Fs in combustor emissions is not a trivial matter. Development of one or more simple, easy-to-measure, reliable indicators of stack PCDD/F concentrations not only would enable incinerator operators to economically optimize system performance with respect to PCDD/F emissions, but could also provide a potential technique for demonstrating compliance status on a more frequent basis. This paper focuses on one approach to empirically estimate PCDD/F emissions using easy-to-measure volatile organic C sub(2) chlorinated alkene precursors coupled with flue gas cleaning parameters. Three data sets from pilot-scale incineration experiments were examined for correlations between C sub(2) chlorinated alkenes and PCDDs/Fs. Each data set contained one or more C sub(2) chloroalkenes that were able to account for a statistically significant fraction of the variance in PCDD/F emissions. Variations in the vinyl chloride concentrations were able to account for the variations in the PCDD/F concentrations strongly in two of the three data sets and weakly in one of the data sets. JF - Journal of the Air & Waste Management Association AU - Lemieux, P M AU - Lee, C W AU - Ryan, J V AD - U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Air Pollution Prevention and Control Division, Research Triangle Park, NC, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 2129 EP - 2137 VL - 50 IS - 12 SN - 1047-3289, 1047-3289 KW - Pollution Abstracts KW - Combustion products KW - Toxicity KW - Emission measurements KW - PCDF KW - Incinerators KW - PCDD KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17748270?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association&rft.atitle=Prediction+of+Dioxin%2FFuran+Incinerator+Emissions+Using+Low-Molecular-Weight+Volatile+Products+of+Incomplete+Combustion&rft.au=Lemieux%2C+P+M%3BLee%2C+C+W%3BRyan%2C+J+V&rft.aulast=Lemieux&rft.aufirst=P&rft.date=2000-12-01&rft.volume=50&rft.issue=12&rft.spage=2129&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association&rft.issn=10473289&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - PCDD; PCDF; Combustion products; Incinerators; Toxicity; Emission measurements ER - TY - JOUR T1 - Effect of Diflubenzuron on Flight of Adult Aquatic Insects (Plecoptera, Trichoptera) following Emergence During the Second Year After Aerial Application AN - 17036840; 4824163 AB - With Malaise traps, we monitored the flight of adult Plecoptera and Trichoptera following emergence from headwater streams in the Fernow Experimental Forest, WV, during the second year after application of diflubenzuron. We placed five traps at various distances from each stream during May through September of 1991, 1992, and 1993. We collected pretreatment samples during the first year. In May 1992, diflubenzuron was applied to two watersheds, and the other two watersheds were used as untreated references. The 1992 study tested the effects of diflubenzuron that fell directly into the streams or were washed into the stream during the first year. For 1993, we tested the hypothesis that diflubenzuron affected adult flight following emergence during the year following abscission and possible ingestion of the treated leaves. The analysis compared the regressions of the number of adults caught in each trap versus distance of the trap from the stream among years and between treatments for each species. The flight of the stonefly Leuctra ferruginea (Walker) was reduced in the treatment watersheds compared with the reference watersheds during the year following abscission of the treated leaves. Adult flight of other species did not decrease in the treatment watersheds during 1993. These results show a relatively small effect of diflubenzuron on these aquatic insects; however, our study involved only a single application of diflubenzuron. Additional research may be needed to predict the possible effects of multiple applications of diflubenzuron over several years as often occurs during actual efforts to suppress gypsy moth, Lymantria dispar (L.). JF - Journal of Economic Entomology AU - Griffith, M B AU - Barrows, E M AU - Perry, SA AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory (MS-642), 26 W. Martin Luther King Drive, Cincinnati, OH 45268, USA Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 1695 EP - 1700 VL - 93 IS - 6 SN - 0022-0493, 0022-0493 KW - Caddisflies KW - Diflubenzuron KW - Nontarget organisms KW - Plecoptera KW - Stoneflies KW - Trichoptera KW - USA, West Virginia KW - adults KW - diflubenzuron KW - ji1 KW - Ecology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Entomology Abstracts; Pollution Abstracts KW - Rivers KW - Mortality KW - Pollution effects KW - Man-induced effects KW - Pest control KW - Adults KW - Freshwater KW - Watersheds KW - Aquatic environment KW - Insecticides KW - Traps KW - Emergence KW - Aquatic insects KW - Flight behaviour KW - Mortality causes KW - USA, West Virginia, Fernow Experimental Forest KW - Freshwater pollution KW - D 04803:Pollution effects KW - P 2000:FRESHWATER POLLUTION KW - Z 05210:Aquatic entomology KW - Q1 08423:Behaviour KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17036840?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Effect+of+Diflubenzuron+on+Flight+of+Adult+Aquatic+Insects+%28Plecoptera%2C+Trichoptera%29+following+Emergence+During+the+Second+Year+After+Aerial+Application&rft.au=Griffith%2C+M+B%3BBarrows%2C+E+M%3BPerry%2C+SA&rft.aulast=Griffith&rft.aufirst=M&rft.date=2000-12-01&rft.volume=93&rft.issue=6&rft.spage=1695&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/10.1043%2F0022-0493%282000%29093%281695%3AEODOFO%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Rivers; Insecticides; Man-induced effects; Pest control; Adults; Watersheds; Aquatic insects; Mortality causes; Flight behaviour; Freshwater pollution; Mortality; Traps; Nontarget organisms; Emergence; Aquatic environment; Pollution effects; USA, West Virginia, Fernow Experimental Forest; Freshwater DO - http://dx.doi.org/10.1043/0022-0493(2000)093(1695:EODOFO)2.0.CO;2 ER - TY - JOUR T1 - The effects of toxicants on planktonic systems: an integrated approach using the analysis of size distributions AN - 16172540; 5956424 AB - We measured size distributions in model wetlands to detect stressor effects at the community level. Two experiments investigated the individual and combined effects of methyl mercury, chlorpyrifos, atrazine, monosodium methane arsonate, and UV-B light on the system. The statistical analysis of the metric using size distributions, which integrated information about organisms 0.2-4750 mu m in size, detected effects in the planktonic community. Effects were found in both experiments, but only when methyl mercury was present in the treatment structure, indicating that system level effects are most likely with broad spectrum or persistent toxicants. Methyl mercury negatively affected most size classes measured in both experiments. A methyl mercury x chlorpyrifos interaction was detected which shifted the size distribution to larger organisms more than expected, but the interaction effect was much smaller than the effect of methyl mercury alone. JF - Journal of Aquatic Ecosystem Stress and Recovery AU - Baca, R M AU - Threlkeld, ST AD - U.S. Environmental Protection Agency, Ecosystems Research Division, 960 College Station Road, Athens, GA 30605, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 95 EP - 105 VL - 8 IS - 2 SN - 1386-1980, 1386-1980 KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Methylmercury KW - Methyl mercury KW - Biological stress KW - Toxicants KW - Stress KW - Pollution effects KW - Freshwater KW - Chlorpyrifos KW - Atrazine KW - Pesticides KW - Ultraviolet radiation KW - Arsenic compounds KW - Wetlands KW - Size distribution KW - Plankton KW - Q1 08461:Plankton KW - Q5 08504:Effects on organisms KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16172540?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Aquatic+Ecosystem+Stress+and+Recovery&rft.atitle=The+effects+of+toxicants+on+planktonic+systems%3A+an+integrated+approach+using+the+analysis+of+size+distributions&rft.au=Baca%2C+R+M%3BThrelkeld%2C+ST&rft.aulast=Baca&rft.aufirst=R&rft.date=2000-12-01&rft.volume=8&rft.issue=2&rft.spage=95&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aquatic+Ecosystem+Stress+and+Recovery&rft.issn=13861980&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-01-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Biological stress; Methyl mercury; Toxicants; Ultraviolet radiation; Pesticides; Pollution effects; Wetlands; Arsenic compounds; Plankton; Size distribution; Chlorpyrifos; Methylmercury; Atrazine; Stress; Freshwater ER - TY - JOUR T1 - Land cover as a framework for assessing risk of water pollution AN - 16128466; 4859310 AB - A survey of numerous field studies shows that nitrogen and phosphorous export coefficients are significantly different across forest, agriculture, and urban land-cover types. We used simulations to estimate the land-cover composition at which there was a significant risk of nutrient loads representative of watersheds without forest cover. The results suggest that at between 20 percent and 30 percent nonforest cover, there is a 10 percent or greater chance of N or P nutrient loads being equivalent to the median values of predominantly agricultural or urban watersheds. The methods apply to environmental management for assessing the risk to increased nonpoint nutrient pollution. Interpretation of the risk measures are discussed relative to their application for a single watershed and across a region comprised of several watersheds. JF - Journal of the American Water Resources Association AU - Wickham, J D AU - Riitters, KH AU - O'Neill, R V AU - Reckhow, KH AU - Wade, T G AU - Jones, K B AD - U.S. Environmental Protection Agency (MD-56), Research Triangle Park, NC 27711, USA, wickham.james@epamail.epa.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 1417 EP - 1422 VL - 36 IS - 6 SN - 1093-474X, 1093-474X KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Land Use KW - Risk assessment KW - Water Pollution Sources KW - Loading KW - Environmental Quality KW - Pollution (Nonpoint sources) KW - Nutrient loading KW - Phosphorus KW - Forests KW - Nutrients KW - Watersheds KW - Nonpoint Pollution Sources KW - Pollution Load KW - Simulation KW - Environmental quality standards KW - Nonpoint pollution KW - Water pollution KW - Fate KW - Land use KW - Risk KW - Nutrients (mineral) KW - Pollution (Water) KW - Nitrogen KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16128466?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Land+cover+as+a+framework+for+assessing+risk+of+water+pollution&rft.au=Wickham%2C+J+D%3BRiitters%2C+KH%3BO%27Neill%2C+R+V%3BReckhow%2C+KH%3BWade%2C+T+G%3BJones%2C+K+B&rft.aulast=Wickham&rft.aufirst=J&rft.date=2000-12-01&rft.volume=36&rft.issue=6&rft.spage=1417&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2001-07-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Nutrients (mineral); Watersheds; Land use; Fate; Water pollution; Nitrogen; Risk assessment; Nutrient loading; Phosphorus; Simulation; Nonpoint pollution; Loading; Pollution (Nonpoint sources); Forests; Environmental quality standards; Nutrients; Pollution (Water); Land Use; Risk; Water Pollution Sources; Environmental Quality; Nonpoint Pollution Sources; Pollution Load ER - TY - JOUR T1 - Trends in Indicators of Eutrophication in western Long Island Sound and the Hudson-Raritan Estuary AN - 16127685; 4872744 AB - Significant improvements in water quality have been observed for several decades throughout much of the Hudson-Raritan Estuary, primarily as a result of regional abatement of municipal and industrial discharges. These improvements include area-wide, order-of-magnitude reductions in ambient coliform concentrations and significant increases in dissolved oxygen (DO) concentrations. In contrast to these improvements, DO in bottom waters of the western Long Island Sound (WLIS) appears to have decreased in the last two decades. Although there is no consensus as to why hypoxia in WLIS may have recently become more severe, several related hypotheses have been suggested, including an increase in eutrophication, increased density stratification, and changes in wastewater loads. To determine if eutrophication has increased in WLIS, trends in several indicators of eutrophication were examined from a long-term water quality data set. Since the mid-1980s surface DO supersaturation has increased, bottom minimum DO has decreased, and vertical DO stratification has increased in WLIS. Other areas of the Hudson-Raritan Estuary, such as Jamaica Bay and Raritan Bay, exhibit similar evidence of declining water quality and may be experiencing increasing eutrophication. Temporal changes in vertical density stratification indicate that surface to bottom temperature differences have increased to a greater extent and have had a more significant impact on bottom DO depletion in WLIS than in the shallower Jamaica Bay and Raritan Bay. Additional factors contributing to the observed decline in water quality include recent changes in wastewater loads and possible increases in upstream and nonpoint source loads. JF - Estuaries AU - O'Shea, M L AU - Brosnan, T M AD - U.S. Environmental Protection Agency Office of Research and Development, National Risk Management Research Laboratory, Water Supply and Water Resources Division, Urban Watershed Management Branch, Edison, New Jersey 08837, USA, oshea.marie@epa.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 877 EP - 901 VL - 23 IS - 6 SN - 0160-8347, 0160-8347 KW - USA, Long Island Sound KW - ASFA 1: Biological Sciences & Living Resources; Pollution Abstracts; Ecology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Aqualine Abstracts; Oceanic Abstracts KW - Water Pollution KW - Microbial contamination KW - Freshwater KW - Water quality KW - Dissolved oxygen KW - Sewage disposal KW - ANW, USA, New Jersey, Raritan Estuary KW - Pollution indicators KW - USA, New York, Hudson R. KW - Estuaries KW - Water Quality KW - Brackish KW - Nonpoint pollution KW - Oxygen depletion KW - Oxygen (Dissolved) KW - Wastewater KW - USA, New Jersey, Raritan R. KW - Eutrophication KW - Stratification KW - Density stratification KW - Industrial wastes KW - Stormwater runoff KW - ANW, USA, Hudson Estuary KW - Industrial Wastes KW - Upstream KW - Density Stratification KW - ANW, USA, New York, Long I., Jamaica Bay KW - Marine KW - Coliforms KW - ANW, USA, Long Island Sound KW - Brackishwater pollution KW - Dissolved Oxygen KW - Temperature KW - Estuarine chemistry KW - Shallow water KW - Wastewater discharges KW - Waste water KW - Pollution (Water) KW - Water quality (Natural waters) KW - Q5 08503:Characteristics, behavior and fate KW - O 4095:Instruments/Methods KW - AQ 00007:Industrial Effluents KW - D 04801:Pollution monitoring and detection KW - Q1 08463:Habitat community studies KW - SW 3040:Wastewater treatment processes KW - P 1000:MARINE POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16127685?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Estuaries&rft.atitle=Trends+in+Indicators+of+Eutrophication+in+western+Long+Island+Sound+and+the+Hudson-Raritan+Estuary&rft.au=O%27Shea%2C+M+L%3BBrosnan%2C+T+M&rft.aulast=O%27Shea&rft.aufirst=M&rft.date=2000-12-01&rft.volume=23&rft.issue=6&rft.spage=877&rft.isbn=&rft.btitle=&rft.title=Estuaries&rft.issn=01608347&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2001-07-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Eutrophication; Brackishwater pollution; Estuaries; Microbial contamination; Stratification; Water quality; Density stratification; Estuarine chemistry; Dissolved oxygen; Sewage disposal; Stormwater runoff; Shallow water; Oxygen depletion; Waste water; Pollution indicators; Coliforms; Wastewater discharges; Nonpoint pollution; Industrial wastes; Temperature; Pollution (Water); Oxygen (Dissolved); Wastewater; Water quality (Natural waters); Water Pollution; Industrial Wastes; Dissolved Oxygen; Water Quality; Upstream; Density Stratification; USA, New Jersey, Raritan R.; ANW, USA, Long Island Sound; ANW, USA, Hudson Estuary; ANW, USA, New Jersey, Raritan Estuary; USA, New York, Hudson R.; ANW, USA, New York, Long I., Jamaica Bay; Marine; Brackish; Freshwater ER - TY - JOUR T1 - Cytogenetic studies of three triazine herbicides. II. In vivo micronucleus studies in mouse bone marrow. AN - 72558201; 11080666 AB - Atrazine, simazine, and cyanazine are widely used preemergence and postemergence triazine herbicides that have made their way into the potable water supply of many agricultural communities. Although there are several contradictory genotoxicity studies in the literature, our previous in vitro studies with human lymphocytes showed that atrazine, simazine, and cyanazine did not induce sister chromatid exchanges (SCEs) or chromosome aberrations (CAs) up to the limits of solubility in aqueous medium using 0.5% dimethyl sulfoxide. To expand upon these results and to ensure that our in vitro findings could be replicated in an in vivo system, mice were treated with each triazine by two intraperitoneal injections, 24h apart. The animals were sacrificed and the bone marrow removed for micronucleus (MN) analysis, 24h after the last injection. Two to four independent trials were performed for MN analysis in polychromatic erythrocytes, and in some trials the spleen was removed, cultured, and analyzed for SCEs and CAs. None of the triazines investigated induced MN in the bone marrow, even at doses that caused significant bone marrow suppression and/or death. These results indicate that atrazine, simazine, and cyanazine are not genotoxic as measured by the bone marrow MN assay in mice following high dose exposures. JF - Mutation research AU - Kligerman, A D AU - Doerr, C L AU - Tennant, A H AU - Peng, B AD - Environmental Carcinogenesis Division, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA. klingerman.andrew@epa.gov Y1 - 2000/11/20/ PY - 2000 DA - 2000 Nov 20 SP - 107 EP - 112 VL - 471 IS - 1-2 SN - 0027-5107, 0027-5107 KW - Herbicides KW - 0 KW - Mutagens KW - Triazines KW - Atrazine KW - QJA9M5H4IM KW - Simazine KW - SG0C34SMY3 KW - cyanazine KW - W34C4P18WD KW - Index Medicus KW - Injections, Intraperitoneal KW - Micronuclei, Chromosome-Defective -- drug effects KW - Animals KW - Cells, Cultured KW - Mice, Inbred C57BL KW - Spleen -- pathology KW - Mice KW - Erythroblasts -- drug effects KW - Spleen -- drug effects KW - Female KW - Erythroblasts -- pathology KW - Bone Marrow Cells -- drug effects KW - Triazines -- toxicity KW - Simazine -- administration & dosage KW - Micronucleus Tests KW - Herbicides -- administration & dosage KW - Atrazine -- administration & dosage KW - Simazine -- toxicity KW - Bone Marrow Cells -- pathology KW - Mutagens -- toxicity KW - Herbicides -- toxicity KW - Mutagens -- administration & dosage KW - Atrazine -- toxicity KW - Triazines -- administration & dosage UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72558201?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+research&rft.atitle=Cytogenetic+studies+of+three+triazine+herbicides.+II.+In+vivo+micronucleus+studies+in+mouse+bone+marrow.&rft.au=Kligerman%2C+A+D%3BDoerr%2C+C+L%3BTennant%2C+A+H%3BPeng%2C+B&rft.aulast=Kligerman&rft.aufirst=A&rft.date=2000-11-20&rft.volume=471&rft.issue=1-2&rft.spage=107&rft.isbn=&rft.btitle=&rft.title=Mutation+research&rft.issn=00275107&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-03-01 N1 - Date created - 2001-01-26 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Vanilloid (capsaicin) receptors influence inflammatory sensitivity in response to particulate matter. AN - 72408699; 11076698 AB - The signs of airway inflammation and hyperresponsiveness that occur in animals exposed to air pollutants are often strain- and species-specific. To investigate the underlying causes of this phenomenon, BALB/c and C57bl/6 mice were exposed intratracheally to residual oil fly ash (ROFA, 3 mg/kg) and examined after 24 h for signs of airway inflammation. BALB/c showed significantly higher numbers of neutrophils and increased airway hyperresponsiveness in response to methacholine challenge, whereas B6 mice showed no significant change in either inflammatory endpoint. To determine the underlying cause of this strain specificity, cultures of dorsal root ganglion (DRG) sensory neurons, which innervate the upper airways in situ, were explanted from both BALB/c and B6 fetal mice. After 5-7 days in culture, they were exposed to ROFA, other urban and industrial particulate matter (PM; e.g., oil fly ash, woodstove, Mt. St. Helen, St. Louis, Ottawa, coal fly ash) or to prototype irritants (e.g., capsaicin 3-10 microM, pH 5.0 and 6.5). In all instances (except for woodstove), DRG neurons from BALB/c mice released significantly higher levels of the pro-inflammatory cytokine IL-6 into their nutrient media relative to neurons from B6 mice. This cytokine release could be significantly reduced for all PM treated cultures (except woodstove) by pretreatment of cultures with capsazepine (CPZ), a competitive antagonist of vanilloid receptors. DRG neurons, cultured from BALB/c and B6 neonates, were loaded with Fluo-3 AM and exposed to the prototype irritants, acid pH (5.0, 6.5), or capsaicin (3, 10 microM). Analysis of their increases in intracellular calcium showed that significantly higher numbers of BALB/c neurons responded to these prototype irritants, relative to B6 neurons. Morphometric analysis of BALB/c neurons, histochemically stained with cobalt to label neurons bearing capsaicin-sensitive receptors, showed a significantly higher level of stained neurons relative to B6 neurons. Finally, semiquantitative RT-PCR showed a higher expression of VR1 receptor mRNA in DRG and spinal cord taken from neonatal BALB/c mice relative to B6 mice. Taken together, these data suggest that capsaicin and acid-sensitive irritant receptors, located on somatosensory cell bodies and their nerve fiber terminals, subserve PM-induced airway inflammation and are quantitatively different in responsive and nonresponsive mouse strains. Copyright 2000 Academic Press. JF - Toxicology and applied pharmacology AU - Veronesi, B AU - Oortgiesen, M AU - Roy, J AU - Carter, J D AU - Simon, S A AU - Gavett, S H AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Research Triangle Park, North Carolina, USA. Y1 - 2000/11/15/ PY - 2000 DA - 2000 Nov 15 SP - 66 EP - 76 VL - 169 IS - 1 SN - 0041-008X, 0041-008X KW - Air Pollutants KW - 0 KW - Coal Ash KW - Interleukin-6 KW - Particulate Matter KW - Receptors, Drug KW - RNA KW - 63231-63-0 KW - Carbon KW - 7440-44-0 KW - Capsaicin KW - S07O44R1ZM KW - Index Medicus KW - Animals KW - Dose-Response Relationship, Drug KW - Intubation, Intratracheal KW - Interleukin-6 -- metabolism KW - Fetus -- cytology KW - Mice KW - Reverse Transcriptase Polymerase Chain Reaction KW - Mice, Inbred BALB C KW - Ganglia, Spinal -- embryology KW - Pregnancy KW - Neurons, Afferent -- metabolism KW - Ganglia, Spinal -- cytology KW - Animals, Newborn KW - Neurons, Afferent -- cytology KW - Cell Survival -- drug effects KW - RNA -- metabolism KW - Cells, Cultured KW - Ganglia, Spinal -- metabolism KW - Mice, Inbred C57BL KW - Neurons, Afferent -- drug effects KW - Ganglia, Spinal -- drug effects KW - Species Specificity KW - Female KW - Receptors, Drug -- genetics KW - Bronchial Hyperreactivity -- chemically induced KW - Receptors, Drug -- metabolism KW - Bronchial Hyperreactivity -- physiopathology KW - Capsaicin -- metabolism KW - Air Pollutants -- toxicity KW - Carbon -- toxicity KW - Carbon -- administration & dosage UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72408699?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+and+applied+pharmacology&rft.atitle=Vanilloid+%28capsaicin%29+receptors+influence+inflammatory+sensitivity+in+response+to+particulate+matter.&rft.au=Veronesi%2C+B%3BOortgiesen%2C+M%3BRoy%2C+J%3BCarter%2C+J+D%3BSimon%2C+S+A%3BGavett%2C+S+H&rft.aulast=Veronesi&rft.aufirst=B&rft.date=2000-11-15&rft.volume=169&rft.issue=1&rft.spage=66&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+applied+pharmacology&rft.issn=0041008X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-01-04 N1 - Date created - 2000-12-04 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Integrating human health and ecological concerns in risk assessments AN - 17680808; 4772665 AB - The interconnections between ecosystems, human health and welfare have been increasingly recognized by the US government, academia, and the public. This paper continues this theme by addressing the use of risk assessment to integrate people into a single assessment. In a broad overview of the risk assessment process we stress the need to build a conceptual model of the whole system including multiple species (humans and other ecological entities), stressors, and cumulative effects. We also propose converging landscape ecology and evaluation of ecosystem services with risk assessment to address these cumulative responses. We first look at how this integration can occur within the problem formulation step in risk assessment where the system is defined, a conceptual model created, a subset of components and functions selected, and the analytical framework decided in a context that includes the management decisions. A variety of examples of problem formulations (salmon, wild insects, hyporheic ecosystems, ultraviolet (UV) radiation, nitrogen fertilization, toxic chemicals, and oil spills) are presented to illustrate how treating humans as components of the landscape can add value to risk assessments. We conclude that the risk assessment process should help address the urgent needs of society in proportion to importance, to provide a format to communicate knowledge and understanding, and to inform policy and management decisions. JF - Journal of Hazardous Materials AU - Cirone, P A AU - Duncan, P B AD - US Environmental Protection Agency, 1200 Sixth Avenue, Region 10, Seattle, WA, 98101, USA, cirone.patricia@epa.gov Y1 - 2000/11/03/ PY - 2000 DA - 2000 Nov 03 SP - 1 EP - 17 VL - 78 IS - 1-3 SN - 0304-3894, 0304-3894 KW - Pollution Abstracts; Health & Safety Science Abstracts; Risk Abstracts KW - Ecosystems KW - Environmental health KW - Public health KW - Fertilizers KW - Ultraviolet radiation KW - Oil spills KW - Chemicals KW - Risk assessment KW - Ecology KW - Government policies KW - H 3000:Environment and Ecology KW - H 12000:Epidemiology and Public Health KW - R2 23060:Medical and environmental health KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17680808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hazardous+Materials&rft.atitle=Integrating+human+health+and+ecological+concerns+in+risk+assessments&rft.au=Cirone%2C+P+A%3BDuncan%2C+P+B&rft.aulast=Cirone&rft.aufirst=P&rft.date=2000-11-03&rft.volume=78&rft.issue=1-3&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hazardous+Materials&rft.issn=03043894&rft_id=info:doi/10.1016%2FS0304-3894%2800%2900214-4 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Risk assessment and environmental policy making. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Environmental health; Public health; Ecology; Risk assessment; Ultraviolet radiation; Fertilizers; Oil spills; Chemicals; Ecosystems; Government policies DO - http://dx.doi.org/10.1016/S0304-3894(00)00214-4 ER - TY - JOUR T1 - Midpoints versus endpoints: The sacrifices and benefits AN - 754564749; 13405301 AB - On May 25-26, 2000 in Brighton (England), the third in a series of international workshops was held under the umbrella of UNEP addressing issues in Life Cycle Impact Assessment (LCIA). The workshop provided a forum for experts to discuss midpoint vs. endpoint modeling. Midpoints are considered to be links in the cause-effect chain (environmental mechanism) of an impact category, prior to the endpoints, at which characterization factors or indicators can be derived to reflect the relative importance of emissions or extractions. Common examples of midpoint characterization factors include ozone depletion potentials, global warming potentials, and photochemical ozone (smog) creation potentials. Recently, however, some methodologies have adopted characterization factors at an endpoint level in the cause-effect chain for all categories of impact (e.g., human health impacts in terms of disability adjusted life years for carcinogenicity, climate change, ozone depletion, photochemical ozone creation; or impacts in terms of changes in biodiversity, etc.). The topics addressed at this workshop included the implications of midpoint versus endpoint indicators with respect to uncertainty (parameter, model and scenario), transparency and the ability to subsequently resolve trade-offs across impact categories using weighting techniques. The workshop closed with a consensus that both midpoint and endpoint methodologies provide useful information to the decision maker, prompting the call for tools that include both in a consistent framework. JF - International Journal of Life Cycle Assessment AU - Bare, Jane C AU - Hofstetter, Patrick AU - Pennington, David W AU - Haes, Helias AUdo AD - Centre of Environmental Science (CML), Leiden University, P.O. Box 9518, NL-2300, Leiden, RA, Netherlands, bare.jane@epa.gov bare.jane@epa.gov bare.jane@epa.gov Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 319 EP - 326 PB - Ecomed Verlagsgesellschaft AG & Co. KG, Justus-von-Liebig-Strasse 1 Landsberg D-86899 Germany VL - 5 IS - 6 SN - 0948-3349, 0948-3349 KW - Sustainability Science Abstracts; Pollution Abstracts; Environment Abstracts KW - British Isles, England, East Sussex, Brighton KW - disabilities KW - life cycle analysis KW - Climatic changes KW - Biological diversity KW - transparency KW - Carcinogenicity KW - Emissions KW - Smog KW - Ozone KW - British Isles, England KW - UNEP KW - Greenhouse effect KW - Photochemicals KW - life cycle KW - Global warming KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754564749?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Life+Cycle+Assessment&rft.atitle=Midpoints+versus+endpoints%3A+The+sacrifices+and+benefits&rft.au=Bare%2C+Jane+C%3BHofstetter%2C+Patrick%3BPennington%2C+David+W%3BHaes%2C+Helias+AUdo&rft.aulast=Bare&rft.aufirst=Jane&rft.date=2000-11-01&rft.volume=5&rft.issue=6&rft.spage=319&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Life+Cycle+Assessment&rft.issn=09483349&rft_id=info:doi/10.1007%2FBF02978665 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - disabilities; life cycle analysis; Climatic changes; Biological diversity; Greenhouse effect; transparency; Photochemicals; life cycle; Carcinogenicity; Emissions; Global warming; Smog; Ozone; British Isles, England, East Sussex, Brighton; British Isles, England; UNEP DO - http://dx.doi.org/10.1007/BF02978665 ER - TY - JOUR T1 - Chronic toxicity of nonylphenol and ethinylestradiol: haematological and histopathological effects in juvenile Common carp (Cyprinus carpio). AN - 72607204; 10998500 AB - In recent ecotoxicological research, there is an increasing concern about alkylphenolic industrial chemicals, such as nonylphenol (NP), because of their estrogenic properties. Data on the general fish toxicity of these wide spread aquatic pollutants are scarce. In order to evaluate sublethal toxic effects of environmentally relevant concentrations of NP, juvenile Common carp (Cyprinus carpio) were exposed to NP concentrations ranging from 1 to 15 microg NP/l over a 70-day period. Classical toxicological endpoints, such as various haematological parameters and histopathological alterations were investigated. In a comprehensive protocol, besides NP-induced effects also alterations due to a treatment with the synthetic estrogen ethinylestradiol (EE2) were evaluated. After both the NP-exposure as well as the EE2-treatment, the predominant haematological finding was a severe anaemia. Histopathological alterations in the kidney, the liver and the spleen occurred exclusively after treatment with EE2, whereas NP-exposed fish did not show any tissue lesions. Depending on the haematological parameter examined, a NOEC between 1 and 5 microg NP/l could be established. From the present findings, it is assumed, that under field conditions, the NP-induced, general toxic effects, might outbalance the relatively weak estrogenic effects of this compound and possibly might disturb ecologically relevant processes such as fish reproduction. JF - Aquatic toxicology (Amsterdam, Netherlands) AU - Schwaiger, J AU - Spieser, O H AU - Bauer, C AU - Ferling, H AU - Mallow, U AU - Kalbfus, W AU - Negele, R D AD - Bavarian State Office of Water Management, Institute for Water Research, Demollstr. 31, 82407, Wielenbach, Germany. julia.schwaiger@lfw.bayern.de Y1 - 2000/11// PY - 2000 DA - November 2000 SP - 69 EP - 78 VL - 51 IS - 1 SN - 0166-445X, 0166-445X KW - Estradiol Congeners KW - 0 KW - Hemoglobins KW - Phenols KW - Ethinyl Estradiol KW - 423D2T571U KW - nonylphenol KW - 79F6A2ILP5 KW - Index Medicus KW - Animals KW - Liver -- pathology KW - Kidney -- metabolism KW - Kidney -- pathology KW - Hemoglobins -- metabolism KW - Endpoint Determination KW - Spleen -- metabolism KW - Erythrocyte Count KW - Spleen -- pathology KW - Liver -- metabolism KW - Blood Cell Count KW - Carps -- physiology KW - Estradiol Congeners -- toxicity KW - Phenols -- toxicity KW - Ethinyl Estradiol -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72607204?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+toxicology+%28Amsterdam%2C+Netherlands%29&rft.atitle=Chronic+toxicity+of+nonylphenol+and+ethinylestradiol%3A+haematological+and+histopathological+effects+in+juvenile+Common+carp+%28Cyprinus+carpio%29.&rft.au=Schwaiger%2C+J%3BSpieser%2C+O+H%3BBauer%2C+C%3BFerling%2C+H%3BMallow%2C+U%3BKalbfus%2C+W%3BNegele%2C+R+D&rft.aulast=Schwaiger&rft.aufirst=J&rft.date=2000-11-01&rft.volume=51&rft.issue=1&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Aquatic+toxicology+%28Amsterdam%2C+Netherlands%29&rft.issn=0166445X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-06-21 N1 - Date created - 2001-05-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A survey of oysters Crassostrea virginica from Tampa Bay, Florida: associations of internal defense measurements with contaminant burdens. AN - 72606873; 10998504 AB - Oysters from 16 sites in Tampa Bay, Florida, were collected during a 6-week period in winter 1993 and analyzed for both biological characteristics and tissue chemical concentrations. Using previous sediment contamination and toxicity data, oyster tissues from the selected sites were expected to exhibit a wide range in both quantity and type of chemicals. Chemical analysis showed tissue concentrations at some of these sites to be greater than national averages, as reported by the National Status and Trends Mussel Watch Program, for total PAH, total PCB, total chlordanes, DDT, Cu, Pb and Zn. Measures of oyster internal defense, including hemocyte density, rate of locomotion and superoxide generation, varied significantly among sites and were generally higher at sites with higher tissue concentrations of xenobiotic chemicals. Potential associations between oyster defense characteristics and accumulated chemical contaminants, either singly or in chemical classes, were explored using correlation analysis and a composited ranking procedure. Positive relationships were found for hemocyte characteristics with certain trace metal (Cu, Sn and Zn) and PAH analytes, whereas negative relationships were found with certain PCB and pesticide analytes. Heightened defenses in contaminated conditions may reflect a hemocyte process for sequestration and detoxification of environmental contaminants. Oysters from four of the 16 sites were additionally collected in June and September 1993 and site-related differences did not closely parallel those obtained in winter. Seasonal environmental factors may have altered contaminant-related differences among sites. JF - Aquatic toxicology (Amsterdam, Netherlands) AU - Fisher, W S AU - Oliver, L M AU - Winstead, J T AU - Long, E R AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Gulf Ecology Division, 1 Sabine Island Dr., Gulf Breeze, FL 32561-5299, USA. fisher.william@epa.gov Y1 - 2000/11// PY - 2000 DA - November 2000 SP - 115 EP - 138 VL - 51 IS - 1 SN - 0166-445X, 0166-445X KW - Index Medicus KW - Animals KW - Hemolymph -- metabolism KW - Sex Characteristics KW - Body Burden KW - Temperature KW - Seawater -- analysis KW - Hemolymph -- drug effects KW - Connective Tissue -- pathology KW - Motor Activity -- physiology KW - Organ Size KW - Florida KW - Gonads -- pathology KW - Body Weight KW - Hemolymph -- immunology KW - Seasons KW - Digestive System -- pathology KW - Female KW - Male KW - Ostreidae -- immunology KW - Hemocytes -- immunology KW - Water Pollution, Chemical -- adverse effects KW - Hemocytes -- drug effects KW - Ostreidae -- parasitology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72606873?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+toxicology+%28Amsterdam%2C+Netherlands%29&rft.atitle=A+survey+of+oysters+Crassostrea+virginica+from+Tampa+Bay%2C+Florida%3A+associations+of+internal+defense+measurements+with+contaminant+burdens.&rft.au=Fisher%2C+W+S%3BOliver%2C+L+M%3BWinstead%2C+J+T%3BLong%2C+E+R&rft.aulast=Fisher&rft.aufirst=W&rft.date=2000-11-01&rft.volume=51&rft.issue=1&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Aquatic+toxicology+%28Amsterdam%2C+Netherlands%29&rft.issn=0166445X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-06-21 N1 - Date created - 2001-05-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The 1998 Baltimore Particulate Matter Epidemiology-Exposure Study: part 2. Personal exposure assessment associated with an elderly study population. AN - 72525962; 11140437 AB - An integrated epidemiological-exposure panel study was conducted during the summer of 1998 which focused upon establishing relationships between potential human exposures to particulate matter (PM) and related co-pollutants with detectable health effects. The study design incorporated repeated individual 24-h integrated PM2.5 personal exposure monitoring. A total of 325 PM2.5 personal exposure samples were obtained during a 28-day study period using a subject pool of 21 elderly (65+ years of age) residents of an 18-story retirement facility near Baltimore, Maryland. Each sample represented a unique 24-h breathing zone measurement of PM2.5 mass concentration. PM2.5 and PM10 mass concentrations collected from the apartments of the subjects as well as residential and ambient sites were compared to individual and mean PM2.5 personal exposures. Daily PM2.5 personal exposure concentrations ranged from 2.4 to 47.8 microg/m3 with an overall individual study mean of 12.9 microg/m3. Mean PM2.5 personal exposures were determined to be highly correlated to those representing the central indoor (r=0.90) and ambient sites (r=0.89). Subjects reported spending an average of 92% of each day within the confines of the retirement center. Based upon measured and modeled exposures, a mean PM2.5 personal cloud of 3.1 microg/m3 was estimated. Data collected from these participants may be unique with respect to the general elderly population due to the communal lifestyle within the facility and reported low frequency of exposure to sources of PM. JF - Journal of exposure analysis and environmental epidemiology AU - Williams, R AU - Suggs, J AU - Creason, J AU - Rodes, C AU - Lawless, P AU - Kwok, R AU - Zweidinger, R AU - Sheldon, L AD - US Environmental Protection Agency, National Exposure Research Laboratory, Research Triangle Park, North Carolina 27711, USA. williams.ronald@epa.gov PY - 2000 SP - 533 EP - 543 VL - 10 IS - 6 Pt 1 SN - 1053-4245, 1053-4245 KW - Index Medicus KW - Life Style KW - Environmental Monitoring KW - Baltimore KW - Epidemiologic Studies KW - Particle Size KW - Humans KW - Aged KW - Activities of Daily Living KW - Male KW - Female KW - Models, Theoretical KW - Air Pollution, Indoor -- analysis KW - Housing for the Elderly KW - Environmental Exposure -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72525962?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.atitle=The+1998+Baltimore+Particulate+Matter+Epidemiology-Exposure+Study%3A+part+2.+Personal+exposure+assessment+associated+with+an+elderly+study+population.&rft.au=Williams%2C+R%3BSuggs%2C+J%3BCreason%2C+J%3BRodes%2C+C%3BLawless%2C+P%3BKwok%2C+R%3BZweidinger%2C+R%3BSheldon%2C+L&rft.aulast=Williams&rft.aufirst=R&rft.date=2000-11-01&rft.volume=10&rft.issue=6+Pt+1&rft.spage=533&rft.isbn=&rft.btitle=&rft.title=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.issn=10534245&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-03-01 N1 - Date created - 2001-01-03 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The 1998 Baltimore Particulate Matter Epidemiology-Exposure Study: part 1. Comparison of ambient, residential outdoor, indoor and apartment particulate matter monitoring. AN - 72522421; 11140436 AB - A combined epidemiological exposure panel study was conducted during the summer of 1998 in Baltimore, Maryland. The objectives of the exposure analysis component of the 28-day study were to investigate the statistical relationships between particulate matter (PM) and related co-pollutants from numerous spatial boundaries associated with an elderly population, provide daily mass concentrations needed for the epidemiological assessment, and perform an extensive personal exposure assessment. Repeated 24-h integrated PM2.5 (n=394) and PM10 (n=170) data collections corresponding to stationary residential central indoor, individual apartment, residential outdoor and ambient monitoring were obtained using the same sampling methodology. An additional 325 PM2.5 personal air samples were collected from a pool of 21 elderly (65+ years of age) subjects. These subjects were residents of the 18-story retirement facility where residential monitoring was conducted. Mean daily central indoor and residential apartment concentrations were approximately 10 microg/m3. Outdoor and ambient PM2.5 concentrations averaged 22 microg/m3 with a daily range of 6.7-59.3 microg/m3. The slope of the central indoor/outdoor PM2.5 mass relationship was 0.38. The average daily ratio of PM2.5/PM10 mass concentrations across the measurement sites ranged from 0.73 to 0.92. Both the central indoor and mean apartment PM2.5 mass concentrations were highly correlated with the outdoor variables (r>0.94). The lack of traditionally recognized indoor sources of PM present within the facility might have accounted for the high degree of correlation observed between the variables. Results associated with the personal monitoring effort are discussed in depth in Part 2 of this article. JF - Journal of exposure analysis and environmental epidemiology AU - Williams, R AU - Suggs, J AU - Zweidinger, R AU - Evans, G AU - Creason, J AU - Kwok, R AU - Rodes, C AU - Lawless, P AU - Sheldon, L AD - US Environmental Protection Agency, National Exposure Research Laboratory, Research Triangle Park, North Carolina 27711, USA. williams.ronald@epa.gov PY - 2000 SP - 518 EP - 532 VL - 10 IS - 6 Pt 1 SN - 1053-4245, 1053-4245 KW - Index Medicus KW - Environmental Monitoring KW - Baltimore KW - Housing for the Elderly KW - Epidemiologic Studies KW - Particle Size KW - Humans KW - Aged KW - Urban Population KW - Male KW - Female KW - Air Pollution, Indoor -- analysis KW - Environmental Exposure -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72522421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.atitle=The+1998+Baltimore+Particulate+Matter+Epidemiology-Exposure+Study%3A+part+1.+Comparison+of+ambient%2C+residential+outdoor%2C+indoor+and+apartment+particulate+matter+monitoring.&rft.au=Williams%2C+R%3BSuggs%2C+J%3BZweidinger%2C+R%3BEvans%2C+G%3BCreason%2C+J%3BKwok%2C+R%3BRodes%2C+C%3BLawless%2C+P%3BSheldon%2C+L&rft.aulast=Williams&rft.aufirst=R&rft.date=2000-11-01&rft.volume=10&rft.issue=6+Pt+1&rft.spage=518&rft.isbn=&rft.btitle=&rft.title=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.issn=10534245&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-03-01 N1 - Date created - 2001-01-03 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The national exposure research laboratory's consolidated human activity database. AN - 72522395; 11140440 AB - EPA's National Exposure Research Laboratory (NERL) has combined data from 12 U.S. studies related to human activities into one comprehensive data system that can be accessed via the Internet. The data system is called the Consolidated Human Activity Database (CHAD) and is available at http:// www.epa.gov/nerl/. CHAD contains 22,968 person days of activity and is designed to assist exposure assessors and modelers in constructing population "cohorts" of people with specified characteristics that are suitable for subsequent analysis or modeling. This paper describes the studies comprising CHAD and the various intellectual foundations that underlay the gathering of human activity pattern data. Next, it provides a brief overview of the Internet version of CHAD, and discusses how the program was formulated. Emphasis is placed on how activity-specific energy expenditure estimates were developed. Finally, the paper recommends steps that should be taken to improve the collection of activity data that would improve energy expenditure estimates and related information needed for physiologically based exposure dose modeling efforts. JF - Journal of exposure analysis and environmental epidemiology AU - McCurdy, T AU - Glen, G AU - Smith, L AU - Lakkadi, Y AD - Office of Research and Development, US Environmental Protection Agency Research Triangle Park, North Carolina 27711, USA. mccurdy.thomas@epa.gov PY - 2000 SP - 566 EP - 578 VL - 10 IS - 6 Pt 1 SN - 1053-4245, 1053-4245 KW - Environmental Pollutants KW - 0 KW - Index Medicus KW - United States KW - Reference Values KW - United States Environmental Protection Agency KW - Humans KW - Infant, Newborn KW - Aged KW - Child KW - Energy Metabolism KW - Child, Preschool KW - Infant KW - Adult KW - Middle Aged KW - Adolescent KW - Male KW - Environmental Pollutants -- adverse effects KW - Female KW - Internet KW - Environmental Exposure KW - Databases, Factual KW - Activities of Daily Living UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72522395?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.atitle=The+national+exposure+research+laboratory%27s+consolidated+human+activity+database.&rft.au=McCurdy%2C+T%3BGlen%2C+G%3BSmith%2C+L%3BLakkadi%2C+Y&rft.aulast=McCurdy&rft.aufirst=T&rft.date=2000-11-01&rft.volume=10&rft.issue=6+Pt+1&rft.spage=566&rft.isbn=&rft.btitle=&rft.title=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.issn=10534245&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-03-01 N1 - Date created - 2001-01-03 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The challenge of assessing children's residential exposure to pesticides. AN - 72514405; 11138656 AB - In implementing the Food Quality Protection Act (FQPA) the U.S. Environmental Protection Agency (USEPA) has adopted a policy that the exposure factors and models used to assess and predict exposure to pesticides should generally be conservative. Some elements of exposure assessments for FQPA are screening level--they are both uncertain and conservative. If more realistic assessments are to be conducted, then research is required to reduce uncertainty associated with the factors and models used in the exposure assessments. To develop the strategy for conducting this research, critical exposure pathways and factors were identified, and the quality and quantity of data associated with default assumptions for exposure factors were evaluated. Then, based on our current understanding of the pathways that are potentially most important and most uncertain, significant research requirements were identified and prioritized to improve the data available and assumptions used to assess children's aggregate exposure to pesticides. Based on the results of these efforts, four priority research areas were identified: (1) pesticide use patterns in microenvironments where children spend time, (2) temporal and spatial distribution of pesticides following application in a residential setting, (3) dermal and nondietary ingestion exposure assessment methods and exposure factors, (4) dietary exposure assessment methods and exposure factors for infants and young children. The National Exposure Research Laboratory (NERL) research strategy in support of FQPA is designed to address these priority research needs. JF - Journal of exposure analysis and environmental epidemiology AU - Hubal, E A AU - Sheldon, L S AU - Zufall, M J AU - Burke, J M AU - Thomas, K W AD - National Exposure Research Laboratory, U.S. EPA, Research Triangle Park, North Carolina 27711, USA. hubal.elaine@epamail.epa.gov PY - 2000 SP - 638 EP - 649 VL - 10 IS - 6 Pt 2 SN - 1053-4245, 1053-4245 KW - Pesticides KW - 0 KW - Index Medicus KW - Infant KW - Administration, Cutaneous KW - Humans KW - Infant, Newborn KW - Food Contamination KW - Child KW - Diet KW - Adolescent KW - Time Factors KW - Child Welfare KW - Risk Assessment KW - Child, Preschool KW - Pesticides -- analysis KW - Housing KW - Environmental Exposure KW - Pesticides -- adverse effects KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72514405?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.atitle=The+challenge+of+assessing+children%27s+residential+exposure+to+pesticides.&rft.au=Hubal%2C+E+A%3BSheldon%2C+L+S%3BZufall%2C+M+J%3BBurke%2C+J+M%3BThomas%2C+K+W&rft.aulast=Hubal&rft.aufirst=E&rft.date=2000-11-01&rft.volume=10&rft.issue=6+Pt+2&rft.spage=638&rft.isbn=&rft.btitle=&rft.title=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.issn=10534245&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-03-01 N1 - Date created - 2001-01-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Dietary exposure of children in lead-laden environments. AN - 72510224; 11138664 AB - Children are the most susceptible population to lead exposure because of three interacting factors; they have more opportunity for contact with lead sources due to their activities, lead absorption occurs more readily in a child compared to an adult, and the child's development is more vulnerable to lead than adults. Low levels of lead in the blood have been shown to cause adverse health effects; the level of concern for children is currently 10 microg/dl. The contribution of dietary exposure of lead to increased blood lead levels (PbB) is not well characterized. This study was conducted to measure potential dietary lead intakes of children 2 to 3 years of age who live in homes contaminated with environmental lead. Objectives were to estimate lead intakes for children consuming food in contaminated environments, recognizing unstructured eating patterns and to investigate if correlations exist between daily dietary exposure and measured PbB. Dietary exposure was evaluated by collecting samples that were typical of the foods the young children ate in their homes. A 24-h duplicate of all foods plus sentinel foods, i.e., individual items used to represent foods contaminated during handling, were collected from 48 children. Ten homes were revisited to obtain information on the variation in daily dietary intakes. Drinking water was evaluated both as part of the segregated beverage sample composite and by itself. Additional information collected included lead concentrations from hand wipes, floor wipes, and venous blood, and questionnaire responses from the caregiver on activities potentially related to exposure. Activities and hygiene practices of the children and contamination of foods in their environment influences total dietary intake. Estimated mean dietary intakes of lead (29.2 microg Pb/day) were more than three times the measured 24-h duplicate-diet levels (8.37 microg Pb/day), which were almost six times higher than current national estimates (1.40 microg Pb/day). Statistically significant correlations were observed between floor wipes and foods contacting contaminated surfaces, hand wipes and foods contacting contaminated hands and surfaces, and hand wipes and floor wipes. This study indicates that the dietary pathway of exposure to lead is impacted by eating activities of children living in lead-contaminated environments and that analysis of foods themselves is not enough to determine excess dietary exposures that are occurring. JF - Journal of exposure analysis and environmental epidemiology AU - Melnyk, L J AU - Berry, M R AU - Sheldon, L S AU - Freeman, N C AU - Pellizzari, E D AU - Kinman, R N AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory, Cincinnati, Ohio 45268, USA. melnyk.lisa@epa.gov PY - 2000 SP - 723 EP - 731 VL - 10 IS - 6 Pt 2 SN - 1053-4245, 1053-4245 KW - Lead KW - 2P299V784P KW - Index Medicus KW - Housing KW - Humans KW - Water Supply KW - Activities of Daily Living KW - Hygiene KW - Feeding Behavior KW - Child Welfare KW - Male KW - Female KW - Child, Preschool KW - Lead -- adverse effects KW - Environmental Exposure -- analysis KW - Food Contamination KW - Diet KW - Lead -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72510224?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.atitle=Dietary+exposure+of+children+in+lead-laden+environments.&rft.au=Melnyk%2C+L+J%3BBerry%2C+M+R%3BSheldon%2C+L+S%3BFreeman%2C+N+C%3BPellizzari%2C+E+D%3BKinman%2C+R+N&rft.aulast=Melnyk&rft.aufirst=L&rft.date=2000-11-01&rft.volume=10&rft.issue=6+Pt+2&rft.spage=723&rft.isbn=&rft.btitle=&rft.title=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.issn=10534245&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-03-01 N1 - Date created - 2001-01-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Respiratory tract pathology and cytokine imbalance in clinically healthy children chronically and sequentially exposed to air pollutants. AN - 72480164; 11186871 AB - Chronic exposure of children to a complex mixture of air pollutants leads to recurrent episodes of upper and lower respiratory tract injury. An altered nasal mucociliary apparatus leaves the distal acinar airways more vulnerable to reactive gases and particulate matter (PM). The heterogeneity of structure in the human lung can impart significant variability in the distribution of ozone dose and particle deposition; this, in turn, influences the extent of epithelial injury and repair in chronically exposed children. Cytokines are low-molecular-weight proteins that act as intercellular mediators of inflammatory reactions, including lung injury of various etiologies. Cytokines are involved in generating inflammatory responses that contribute to injury at the lung epithelial and endothelial barriers. Mexico City is a 20-million-person megacity with severe air pollution problems. Southwest Metropolitan Mexico City (SWMMC) atmosphere is characterized by a complex mixture of air pollutants, including ozone, PM, and aldehydes. There is radiological evidence that significant lower respiratory tract damage is taking place in clinically healthy children chronically and sequentially exposed to air pollutants while growing up in SWMMC. We hypothesize that there is an imbalanced and dysregulated cytokine network in SWMMC children with overproduction of proinflammatory cytokines and cytokines involved in lung tissue repair and fibrosis. The nature of the sustained imbalance among the different cytokines ultimately determines the final lung histopathology, which would include subchronic inflammation, emphysema, and fibrosis. Cytokines likely would reach the systemic circulation and produce systemic effects. Individuals with an underlying respiratory or cardiovascular disease are less able to maintain equilibrium of the precarious cytokine networks. JF - Medical hypotheses AU - Calderón-Garcidueñas, L AU - Devlin, R B AU - Miller, F J AD - Curriculum in Toxicology, University of North Carolina at Chapel Hill, NC, USA. calderon.lilian@epamail.epa.gov Y1 - 2000/11// PY - 2000 DA - November 2000 SP - 373 EP - 378 VL - 55 IS - 5 SN - 0306-9877, 0306-9877 KW - Air Pollutants KW - 0 KW - Cytokines KW - Index Medicus KW - Animals KW - Mexico KW - Humans KW - Child KW - Cytokines -- metabolism KW - Respiratory System -- pathology KW - Air Pollutants -- toxicity KW - Respiratory System -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72480164?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Medical+hypotheses&rft.atitle=Respiratory+tract+pathology+and+cytokine+imbalance+in+clinically+healthy+children+chronically+and+sequentially+exposed+to+air+pollutants.&rft.au=Calder%C3%B3n-Garcidue%C3%B1as%2C+L%3BDevlin%2C+R+B%3BMiller%2C+F+J&rft.aulast=Calder%C3%B3n-Garcidue%C3%B1as&rft.aufirst=L&rft.date=2000-11-01&rft.volume=55&rft.issue=5&rft.spage=373&rft.isbn=&rft.btitle=&rft.title=Medical+hypotheses&rft.issn=03069877&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-02-22 N1 - Date created - 2000-12-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - An improved inventory of methane emissions from coal mining in the United States. AN - 72475113; 11111335 AB - Past efforts to estimate methane emissions from underground mines, surface mines, and other coal mine operations have been hampered, to different degrees, by a lack of direct emissions data. Direct measurements have been completely unavailable for several important coal mining operations. A primary goal of this study was to collect new methane emissions measurements and other data for the most poorly characterized mining operations and use these data to develop an improved methane emission inventory for the U.S. coal mining industry. This required the development and verification of measurement methods for surface mines, coal handling operations, and abandoned underground mines and the use of these methods at about 30 mining sites across the United States. Although the study's focus was on surface mines, abandoned underground mines, and coal handling operations, evaluations were also conducted to improve our understanding of underground mine emission trends and to develop improved national data sets of coal properties. Total U.S. methane emissions are estimated to be 4.669 million tons, and as expected, emissions from underground mine ventilation and methane drainage systems dominate (74% of the total emissions). On the other hand, emissions from coal handling, abandoned underground mines, and surface mines are significant, and collectively they represent approximately 26% of the total emissions. JF - Journal of the Air & Waste Management Association (1995) AU - Kirchgessner, D A AU - Piccot, S D AU - Masemore, S S AD - U.S. Environmental Protection Agency, Office of Research and Development, Research Triangle Park, North Carolina, USA. Y1 - 2000/11// PY - 2000 DA - November 2000 SP - 1904 EP - 1919 VL - 50 IS - 11 SN - 1096-2247, 1096-2247 KW - Air Pollutants, Occupational KW - 0 KW - Methane KW - OP0UW79H66 KW - Index Medicus KW - United States KW - Methane -- analysis KW - Air Pollutants, Occupational -- analysis KW - Coal Mining UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72475113?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.atitle=An+improved+inventory+of+methane+emissions+from+coal+mining+in+the+United+States.&rft.au=Kirchgessner%2C+D+A%3BPiccot%2C+S+D%3BMasemore%2C+S+S&rft.aulast=Kirchgessner&rft.aufirst=D&rft.date=2000-11-01&rft.volume=50&rft.issue=11&rft.spage=1904&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.issn=10962247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-01-11 N1 - Date created - 2001-01-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - CONF T1 - Cognitive evaluation: is it needed in neurotoxicity screening? Symposium presented at the annual Behavioral Toxicology Society meeting, May 1999. AN - 72472482; 11188757 JF - Neurotoxicology and teratology AU - Moser, V C AU - Bowen, S E AU - Li, A A AU - Sette, W S AU - Weisenburger, W P Y1 - 2000 PY - 2000 DA - 2000 SP - 785 EP - 798 VL - 22 IS - 6 KW - Trimethyltin Compounds KW - 0 KW - trimethyltin KW - 1631-73-8 KW - Toluene KW - 3FPU23BG52 KW - Benzene KW - J64922108F KW - Index Medicus KW - Rats KW - Animals KW - Rats, Sprague-Dawley KW - Benzene -- toxicity KW - Toluene -- toxicity KW - Trimethyltin Compounds -- toxicity KW - Male KW - Female KW - Behavior, Animal -- drug effects KW - Cognition -- drug effects KW - Nervous System -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72472482?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Neurotoxicology+and+teratology&rft.atitle=Cognitive+evaluation%3A+is+it+needed+in+neurotoxicity+screening%3F+Symposium+presented+at+the+annual+Behavioral+Toxicology+Society+meeting%2C+May+1999.&rft.au=Moser%2C+V+C%3BBowen%2C+S+E%3BLi%2C+A+A%3BSette%2C+W+S%3BWeisenburger%2C+W+P&rft.aulast=Moser&rft.aufirst=V&rft.date=2000-11-01&rft.volume=22&rft.issue=6&rft.spage=785&rft.isbn=&rft.btitle=&rft.title=Neurotoxicology+and+teratology&rft.issn=08920362&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-01-11 N1 - Date created - 2001-01-04 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The 1999 Fresno particulate matter exposure studies: comparison of community, outdoor, and residential PM mass measurements. AN - 72471282; 11111333 AB - Two collaborative studies have been conducted by the U.S. Environmental Protection Agency (EPA) National Exposure Research Laboratory (NERL) and National Health and Environmental Effects Research Laboratory to determine personal exposures and physiological responses to particulate matter (PM) of elderly persons living in a retirement facility in Fresno, CA. Measurements of PM and other criteria air pollutants were made inside selected individual residences within the retirement facility and at a central outdoor site on the premises. In addition, personal PM exposure monitoring was conducted for a subset of the participants, and ambient PM monitoring data were available for comparison from the NERL PM research monitoring platform in central Fresno. Both a winter (February 1-28, 1999) and a spring (April 19-May 16, 1999) study were completed so that seasonal effects could be evaluated. During the spring study, a more robust personal exposure component was added, as well as a more detailed evaluation of physical factors, such as air-exchange rate, that are known to influence the penetration of particles into the indoor environment. In this paper, comparisons are made among measured personal PM exposures and PM mass concentrations measured at the NERL Fresno Platform site, outside on the premises of the retirement facility, and inside selected residential apartments at the facility during the two 28-day study periods. The arithmetic daily mean personal PM2.5 exposure during the winter study period was 13.3 micrograms/m3, compared with 9.7, 20.5, and 21.7 micrograms/m3 for daily mean overall apartment, outdoor, and ambient (i.e., platform) concentrations, respectively. The daily mean personal PM2.5 exposure during the spring study period was 11.1 micrograms/m3, compared with 8.0, 10.1, and 8.6 micrograms/m3 for the daily mean apartment, outdoor, and ambient concentrations, respectively. JF - Journal of the Air & Waste Management Association (1995) AU - Evans, G F AU - Highsmith, R V AU - Sheldon, L S AU - Suggs, J C AU - Williams, R W AU - Zweidinger, R B AU - Creason, J P AU - Walsh, D AU - Rodes, C E AU - Lawless, P A AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory, Research Triangle Park, North Carolina, USA. Y1 - 2000/11// PY - 2000 DA - November 2000 SP - 1887 EP - 1896 VL - 50 IS - 11 SN - 1096-2247, 1096-2247 KW - Air Pollutants KW - 0 KW - Index Medicus KW - California KW - Humans KW - Environmental Exposure -- analysis KW - Aged KW - Time Factors KW - Air Pollution, Indoor -- analysis KW - Air Pollution -- analysis KW - Air Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72471282?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.atitle=The+1999+Fresno+particulate+matter+exposure+studies%3A+comparison+of+community%2C+outdoor%2C+and+residential+PM+mass+measurements.&rft.au=Evans%2C+G+F%3BHighsmith%2C+R+V%3BSheldon%2C+L+S%3BSuggs%2C+J+C%3BWilliams%2C+R+W%3BZweidinger%2C+R+B%3BCreason%2C+J+P%3BWalsh%2C+D%3BRodes%2C+C+E%3BLawless%2C+P+A&rft.aulast=Evans&rft.aufirst=G&rft.date=2000-11-01&rft.volume=50&rft.issue=11&rft.spage=1887&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.issn=10962247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-01-11 N1 - Date created - 2001-01-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Issues for discussion: benzene-induced leukemia--human studies. AN - 72430823; 11086953 JF - Journal of toxicology and environmental health. Part A AU - Bayliss, D AU - Sonawane, B AD - National Center for Environmental Assessment, US Environmental Protection Agency, National Cancer Institute/Chinese Epidemiologic Study. Y1 - 2000/11// PY - 2000 DA - November 2000 SP - 467 EP - 470 VL - 61 IS - 5-6 SN - 1528-7394, 1528-7394 KW - Biomarkers, Tumor KW - 0 KW - Petroleum KW - Benzene KW - J64922108F KW - Index Medicus KW - Occupational Exposure KW - Extraction and Processing Industry KW - Humans KW - China -- epidemiology KW - Biomarkers, Tumor -- analysis KW - Occupational Diseases -- epidemiology KW - United States -- epidemiology KW - Occupational Diseases -- chemically induced KW - Epidemiology -- standards KW - Leukemia -- chemically induced KW - Leukemia -- epidemiology KW - Benzene -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72430823?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+toxicology+and+environmental+health.+Part+A&rft.atitle=Issues+for+discussion%3A+benzene-induced+leukemia--human+studies.&rft.au=Bayliss%2C+D%3BSonawane%2C+B&rft.aulast=Bayliss&rft.aufirst=D&rft.date=2000-11-01&rft.volume=61&rft.issue=5-6&rft.spage=467&rft.isbn=&rft.btitle=&rft.title=Journal+of+toxicology+and+environmental+health.+Part+A&rft.issn=15287394&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-11-30 N1 - Date created - 2000-11-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Review of the Cox model. AN - 72428241; 11086962 JF - Journal of toxicology and environmental health. Part A AU - Chen, C AD - National Center of Environmental Assessment, US Environmental Protection Agency, Washington, DC 20460, USA. chen.chao@epa.gov Y1 - 2000/11// PY - 2000 DA - November 2000 SP - 521 EP - 523 VL - 61 IS - 5-6 SN - 1528-7394, 1528-7394 KW - Cyclophosphamide KW - 8N3DW7272P KW - Benzene KW - J64922108F KW - Index Medicus KW - Animals KW - Leukemia -- chemically induced KW - Dose-Response Relationship, Drug KW - Humans KW - Benzene -- toxicity KW - Predictive Value of Tests KW - Risk Assessment KW - Cyclophosphamide -- toxicity KW - Cyclophosphamide -- pharmacokinetics KW - Models, Biological KW - Proportional Hazards Models KW - Hematopoietic Stem Cells -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72428241?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+toxicology+and+environmental+health.+Part+A&rft.atitle=Review+of+the+Cox+model.&rft.au=Chen%2C+C&rft.aulast=Chen&rft.aufirst=C&rft.date=2000-11-01&rft.volume=61&rft.issue=5-6&rft.spage=521&rft.isbn=&rft.btitle=&rft.title=Journal+of+toxicology+and+environmental+health.+Part+A&rft.issn=15287394&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-11-30 N1 - Date created - 2000-11-21 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Comment On: J Toxicol Environ Health A. 2000 Nov;61(5-6):501-10 [11086959] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Carcinogenic effects of benzene--a status update and research needs to improve risk assessments: US EPA perspective. Environmental Protection Agency. AN - 72428176; 11086954 JF - Journal of toxicology and environmental health. Part A AU - Sonawane, B AU - Bayliss, D AU - Valcovic, L AU - Chen, C AU - Rodan, B AU - Farland, W AD - National Center for Environmental Assessment, Office of Research and Development, US Environmental Protection Agency, Washington, DC 20460, USA. sonawane.bob@epamail.epa.gov Y1 - 2000/11// PY - 2000 DA - November 2000 SP - 471 EP - 472 VL - 61 IS - 5-6 SN - 1528-7394, 1528-7394 KW - Carcinogens KW - 0 KW - Benzene KW - J64922108F KW - Index Medicus KW - United States KW - United States Environmental Protection Agency KW - Leukemia -- chemically induced KW - Dose-Response Relationship, Drug KW - Humans KW - Linear Models KW - Risk Assessment -- standards KW - Likelihood Functions KW - Benzene -- adverse effects KW - Carcinogens -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72428176?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+toxicology+and+environmental+health.+Part+A&rft.atitle=Carcinogenic+effects+of+benzene--a+status+update+and+research+needs+to+improve+risk+assessments%3A+US+EPA+perspective.+Environmental+Protection+Agency.&rft.au=Sonawane%2C+B%3BBayliss%2C+D%3BValcovic%2C+L%3BChen%2C+C%3BRodan%2C+B%3BFarland%2C+W&rft.aulast=Sonawane&rft.aufirst=B&rft.date=2000-11-01&rft.volume=61&rft.issue=5-6&rft.spage=471&rft.isbn=&rft.btitle=&rft.title=Journal+of+toxicology+and+environmental+health.+Part+A&rft.issn=15287394&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-11-30 N1 - Date created - 2000-11-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - California perspective on the assessment of benzene toxicological risks. AN - 72425192; 11086956 JF - Journal of toxicology and environmental health. Part A AU - Zeise, L AU - McDonald, T A AD - California Environmental Protection Agency, Office of Environmental Health Hazard Assessment, Oakland, USA. Y1 - 2000/11// PY - 2000 DA - November 2000 SP - 479 EP - 483 VL - 61 IS - 5-6 SN - 1528-7394, 1528-7394 KW - Carcinogens KW - 0 KW - Benzene KW - J64922108F KW - Index Medicus KW - Occupational Exposure KW - California KW - Animals KW - Public Health KW - Dose-Response Relationship, Drug KW - Humans KW - Environmental Exposure KW - Risk Assessment KW - Carcinogens -- toxicity KW - Benzene -- toxicity KW - Benzene -- adverse effects KW - Carcinogens -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72425192?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+toxicology+and+environmental+health.+Part+A&rft.atitle=California+perspective+on+the+assessment+of+benzene+toxicological+risks.&rft.au=Zeise%2C+L%3BMcDonald%2C+T+A&rft.aulast=Zeise&rft.aufirst=L&rft.date=2000-11-01&rft.volume=61&rft.issue=5-6&rft.spage=479&rft.isbn=&rft.btitle=&rft.title=Journal+of+toxicology+and+environmental+health.+Part+A&rft.issn=15287394&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-11-30 N1 - Date created - 2000-11-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Characterization of Cryptosporidium parvum by matrix-assisted laser desorption ionization-time of flight mass spectrometry. AN - 72373405; 11055915 AB - Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) was used to investigate whole and freeze-thawed Cryptosporidium parvum oocysts. Whole oocysts revealed some mass spectral features. Reproducible patterns of spectral markers and increased sensitivity were obtained after the oocysts were lysed with a freeze-thaw procedure. Spectral-marker patterns for C. parvum were distinguishable from those obtained for Cryptosporidium muris. One spectral marker appears specific for the genus, while others appear specific at the species level. Three different C. parvum lots were investigated, and similar spectral markers were observed in each. Disinfection of the oocysts reduced and/or eliminated the patterns of spectral markers. JF - Applied and environmental microbiology AU - Magnuson, M L AU - Owens, J H AU - Kelty, C A AD - Treatment Technology Evaluation Branch, National Risk Management Research Laboratory, Water Supply and Water Resources Division, Office of Research and Development, United States Environmental Protection Agency, Cincinnati, Ohio 45268, USA. Y1 - 2000/11// PY - 2000 DA - November 2000 SP - 4720 EP - 4724 VL - 66 IS - 11 SN - 0099-2240, 0099-2240 KW - Chlorine KW - 4R7X1O2820 KW - Ozone KW - 66H7ZZK23N KW - Index Medicus KW - Animals KW - Disinfection -- methods KW - Ozone -- pharmacology KW - Freezing KW - Chlorine -- pharmacology KW - Cryptosporidium parvum -- growth & development KW - Cryptosporidium parvum -- drug effects KW - Cryptosporidium parvum -- chemistry KW - Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72373405?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+environmental+microbiology&rft.atitle=Characterization+of+Cryptosporidium+parvum+by+matrix-assisted+laser+desorption+ionization-time+of+flight+mass+spectrometry.&rft.au=Magnuson%2C+M+L%3BOwens%2C+J+H%3BKelty%2C+C+A&rft.aulast=Magnuson&rft.aufirst=M&rft.date=2000-11-01&rft.volume=66&rft.issue=11&rft.spage=4720&rft.isbn=&rft.btitle=&rft.title=Applied+and+environmental+microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-01-04 N1 - Date created - 2000-11-09 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Appl Environ Microbiol. 1999 Oct;65(10):4313-9 [10508053] Anal Chem. 1999 Jul 15;71(14):2732-8 [10424165] Biochem Pharmacol. 2000 Apr 15;59(8):891-905 [10692554] Rapid Commun Mass Spectrom. 2000;14(5):307-10 [10700030] FEMS Microbiol Rev. 2000 Apr;24(2):193-219 [10717314] Anal Chem. 2000 Mar 15;72(6):1217-23 [10740862] Parasitol Res. 1989;75(3):218-22 [2523540] Appl Environ Microbiol. 1990 May;56(5):1423-8 [2339894] Infect Immun. 1992 Apr;60(4):1509-13 [1548074] N Engl J Med. 1994 Jul 21;331(3):161-7 [7818640] Rapid Commun Mass Spectrom. 1996;10(8):883-8 [8777320] FEMS Immunol Med Microbiol. 1996 Feb;13(2):141-5 [8731022] J Eukaryot Microbiol. 1996 Sep-Oct;43(5):89S [8822880] Rapid Commun Mass Spectrom. 1996;10(15):1992-6 [9004531] Nat Biotechnol. 1997 Sep;15(9):906-9 [9306409] J Infect Dis. 1998 Sep;178(3):827-33 [9728553] Biochim Biophys Acta. 1999 Jul 7;1454(2):165-73 [10381561] Diagn Microbiol Infect Dis. 1999 Jul;34(3):245-62 [10403104] Rapid Commun Mass Spectrom. 1999;13(15):1580-5 [10421900] Rapid Commun Mass Spectrom. 1999;13(15):1586-94 [10421901] J Am Soc Mass Spectrom. 2000 Jan;11(1):62-8 [10631665] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Biotransformation of trans-4,5-dihydroxy-4,5-dihydrobenzo[a]pyrene to benzo[a]pyrene bis-diols and DNA adducts by induced rat liver microsomes. AN - 70774966; 11087434 AB - The biotransformation of (+/-)-trans-4,5-dihydroxy-4, 5-dihydrobenzo[a]pyrene (trans-B[a]P-4,5-diol), the K-region dihydrodiol of B[a]P, by beta-naphthoflavone (BNF)-induced rat liver microsomes was studied. trans-B[a]P-4,5-diol was metabolized to six major products as characterized by NMR, MS, and UV spectroscopy, and all were identified as bis-diols: two diastereomers of trans,trans-4, 5:7,8-tetrahydroxy-4,5:7,8-tetrahydrobenzo[a]pyrene (trans, trans-B[a]P-4,5:7,8-bis-diol), two diastereomers of trans,trans-4, 5:9,10-tetrahydroxy-4,5:9,10-tetrahydrobenzo[a]pyrene (trans, trans-B[a]P-4,5:9,10-bis-diol), and two diastereomers of the somewhat unusual trans,trans-1,2:4,5-tetrahydroxy-1,2:4, 5-tetrahydrobenzo[a]pyrene (trans,trans-B[a]P-1,2:4,5-bis-diol). BNF-induced rat liver microsomes also metabolized B[a]P to the same trans-B[a]P-4,5-diol-derived bis-diols. The ability of trans-B[a]P-4, 5-diol to form DNA adducts was investigated using (32)P-postlabeling techniques specifically designed to detect stable polar DNA adducts. Four DNA adducts were detected after microsomal activation of trans-B[a]P-4,5-diol with calf thymus DNA. Further analyses indicated that each of these stable polar DNA adducts was derived from the further metabolic activation of the trans,trans-B[a]P-4,5:7, 8-bis-diols. We conclude that trans-B[a]P-4,5-diol can be metabolized to a series of B[a]P-bis-diols, and can also be metabolically activated to form stable polar DNA adducts. The trans, trans-B[a]P-4,5:7,8-bis-diols were shown to be metabolic intermediates in the formation of these DNA adducts. JF - Chemical research in toxicology AU - Padgett, W T AU - Davis, C AU - Lambert, G AU - Nelson, G B AU - Ross, J A AU - Yacopucci, M AU - Nesnow, S AD - Environmental Carcinogenesis Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, MD-68, Research Triangle Park, North Carolina 27711, USA. Y1 - 2000/11// PY - 2000 DA - November 2000 SP - 1125 EP - 1134 VL - 13 IS - 11 SN - 0893-228X, 0893-228X KW - Carcinogens KW - 0 KW - DNA Adducts KW - Dihydroxydihydrobenzopyrenes KW - 4,5-dihydroxy-4,5-dihydrobenzo(a)pyrene KW - 28622-84-6 KW - Benzo(a)pyrene KW - 3417WMA06D KW - beta-Naphthoflavone KW - 6051-87-2 KW - DNA KW - 9007-49-2 KW - Index Medicus KW - Spectrometry, Mass, Electrospray Ionization KW - Animals KW - Stereoisomerism KW - DNA -- metabolism KW - Spectrophotometry, Ultraviolet KW - Benzo(a)pyrene -- analogs & derivatives KW - Benzo(a)pyrene -- pharmacokinetics KW - Chromatography, High Pressure Liquid KW - DNA -- drug effects KW - Rats KW - Cattle KW - Biotransformation KW - Nuclear Magnetic Resonance, Biomolecular KW - Benzo(a)pyrene -- toxicity KW - beta-Naphthoflavone -- pharmacology KW - Male KW - DNA Adducts -- biosynthesis KW - Carcinogens -- metabolism KW - Dihydroxydihydrobenzopyrenes -- toxicity KW - Microsomes, Liver -- metabolism KW - Dihydroxydihydrobenzopyrenes -- pharmacokinetics KW - Carcinogens -- pharmacokinetics KW - Microsomes, Liver -- drug effects KW - Carcinogens -- toxicity KW - Dihydroxydihydrobenzopyrenes -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70774966?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+research+in+toxicology&rft.atitle=Biotransformation+of+trans-4%2C5-dihydroxy-4%2C5-dihydrobenzo%5Ba%5Dpyrene+to+benzo%5Ba%5Dpyrene+bis-diols+and+DNA+adducts+by+induced+rat+liver+microsomes.&rft.au=Padgett%2C+W+T%3BDavis%2C+C%3BLambert%2C+G%3BNelson%2C+G+B%3BRoss%2C+J+A%3BYacopucci%2C+M%3BNesnow%2C+S&rft.aulast=Padgett&rft.aufirst=W&rft.date=2000-11-01&rft.volume=13&rft.issue=11&rft.spage=1125&rft.isbn=&rft.btitle=&rft.title=Chemical+research+in+toxicology&rft.issn=0893228X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-01-18 N1 - Date created - 2000-12-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Observations from contaminant plumes on Long Island AN - 51552551; 2006-070159 JF - Eos, Transactions, American Geophysical Union AU - Weaver, James W AU - Anonymous Y1 - 2000/11// PY - 2000 DA - November 2000 SP - 1 PB - American Geophysical Union, Washington, DC VL - 81 IS - 48, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - concentration KW - biodegradation KW - water supply KW - contaminant plumes KW - pollutants KW - pollution KW - preferential flow KW - drinking water KW - ground water KW - aquifers KW - models KW - ethers KW - recharge KW - organic compounds KW - New York KW - methyl tert-butyl ether KW - Upper Glacial Aquifer KW - shallow aquifers KW - Long Island KW - leaching KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51552551?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Observations+from+contaminant+plumes+on+Long+Island&rft.au=Weaver%2C+James+W%3BAnonymous&rft.aulast=Weaver&rft.aufirst=James&rft.date=2000-11-01&rft.volume=81&rft.issue=48%2C+Suppl.&rft.spage=F387&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2000 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aquifers; biodegradation; concentration; contaminant plumes; drinking water; ethers; ground water; leaching; Long Island; methyl tert-butyl ether; models; New York; organic compounds; pollutants; pollution; preferential flow; recharge; shallow aquifers; United States; Upper Glacial Aquifer; water supply ER - TY - JOUR T1 - Comparison of multimedia model predictions for a contaminant plume migration scenario AN - 51197204; 2001-016116 AB - Predictions of four risk assessment models--RESRAD, PRESTO, MMSOILS, and MEPAS--for a test scenario involving the migration of a single, rapidly transforming radionuclide, (super 90) Sr, and a persistent, long radionuclide chain, (super 234) U and its progeny, in groundwater are compared. All four models make comparable predictions for the plume centerline concentrations of the primary contaminants in the aquifer for a distance of up to about 300 m from the source. MEPAS, MMSOILS, and RESRAD make similar predictions for the transverse concentration profiles in the aquifer. The four models make considerably different predictions for the temporal concentration profiles of the progeny in the aquifer. The profiles differ in shape, magnitude of the peak, and in width. The differences are a result of the simplifying assumptions underlying each of the models. JF - Journal of Contaminant Hydrology AU - Gnanapragasam, E K AU - Yu, C AU - Whelan, G AU - Mills, W B AU - McDonald, J P AU - Lew, C S AU - Hung, C Y AU - Hoffmeyer, D Y1 - 2000/11// PY - 2000 DA - November 2000 SP - 17 EP - 38 PB - Elsevier, Amsterdam VL - 46 IS - 1-2 SN - 0169-7722, 0169-7722 KW - Sr-90 KW - contaminant plumes KW - isotopes KW - ground water KW - saturated zone KW - radioactive isotopes KW - movement KW - mobility KW - MEPAS KW - concentration KW - alkaline earth metals KW - prediction KW - pollution KW - RESRAD KW - MMSOILS KW - mathematical models KW - migration of elements KW - aquifers KW - metals KW - U-234 KW - testing KW - risk assessment KW - uranium KW - actinides KW - strontium KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51197204?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=Comparison+of+multimedia+model+predictions+for+a+contaminant+plume+migration+scenario&rft.au=Gnanapragasam%2C+E+K%3BYu%2C+C%3BWhelan%2C+G%3BMills%2C+W+B%3BMcDonald%2C+J+P%3BLew%2C+C+S%3BHung%2C+C+Y%3BHoffmeyer%2C+D&rft.aulast=Gnanapragasam&rft.aufirst=E&rft.date=2000-11-01&rft.volume=46&rft.issue=1-2&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01697722 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2001-01-01 N1 - Number of references - 15 N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; aquifers; concentration; contaminant plumes; ground water; isotopes; mathematical models; MEPAS; metals; migration of elements; MMSOILS; mobility; movement; pollution; prediction; radioactive isotopes; RESRAD; risk assessment; saturated zone; Sr-90; strontium; testing; U-234; uranium ER - TY - JOUR T1 - Importance of maternal transfer of the photoreactive polycyclic aromatic hydrocarbon fluoranthene from benthic adult bivalves to their pelagic larvae AN - 20614741; 5549414 AB - Laboratory experiments were conducted to determine if maternal transfer of polycyclic aromatic hydrocarbons (PAHs) from benthic adult bivalves could result in phototoxicity to their pelagic larvae when exposed to ultraviolet light (UV). In these experiments, adult bivalves were exposed to water or sediments amended with the model photoreactive PAH, fluoranthene. Elevated adult fluoranthene tissue concentrations were correlated with embryo concentrations. Embryonic mortality was enhanced by exposure to ultraviolet light when adult tissue fluoranthene levels were greater than 5,000 mu g/g lipid. While the exposure concentrations used in this experimental system were high, ultraviolet light exposure levels were low. Also, some of the PAHs are more potent than the model compound used in this study. These results indicate that maternal transfer of photoactive PAHs from organisms living in contaminated sediments may represent a significant adverse effect to populations of benthic bivalves. JF - Environmental Toxicology and Chemistry AU - Pelletier, M C AU - Burgess, R M AU - Cantwell, M G AU - Serbst, J R AU - Ho, K T AU - Ryba, SA AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, Rhode Island 02882, USA Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 2691 EP - 2698 VL - 19 IS - 11 SN - 0730-7268, 0730-7268 KW - Bivalves KW - Mollusks KW - bivalves KW - fluoranthene KW - maternal transfer KW - polycyclic aromatic hydrocarbons KW - transfer KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Water Resources Abstracts; Toxicology Abstracts KW - Water Pollution KW - Death KW - Lipids KW - Pollution dispersion KW - Molluscan larvae KW - Pollution effects KW - Ecological Effects KW - Life stages (see also Eggs, Larvae) KW - Ecology KW - Phototoxicity KW - U.V. radiation KW - Ultraviolet radiation KW - Aromatic hydrocarbons KW - Embryos KW - Photochemical reactions KW - Marine KW - Experimental Data KW - Mortality KW - Sediment pollution KW - Laboratory testing KW - Hydrocarbons KW - Fate of Pollutants KW - Growth Stages KW - Larvae KW - Developmental stages KW - Toxicity KW - Sediments KW - Ultraviolet Radiation KW - Bivalvia KW - Water Pollution Effects KW - Side effects KW - Mortality causes KW - X 24210:Radiation & radioactive materials KW - SW 3020:Sources and fate of pollution KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - AQ 00002:Water Quality KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20614741?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Importance+of+maternal+transfer+of+the+photoreactive+polycyclic+aromatic+hydrocarbon+fluoranthene+from+benthic+adult+bivalves+to+their+pelagic+larvae&rft.au=Pelletier%2C+M+C%3BBurgess%2C+R+M%3BCantwell%2C+M+G%3BSerbst%2C+J+R%3BHo%2C+K+T%3BRyba%2C+SA&rft.aulast=Pelletier&rft.aufirst=M&rft.date=2000-11-01&rft.volume=19&rft.issue=11&rft.spage=2691&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-01-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Pollution dispersion; Ultraviolet radiation; Developmental stages; Pollution effects; Molluscan larvae; Aromatic hydrocarbons; Toxicity; Photochemical reactions; Mortality causes; Phototoxicity; U.V. radiation; Larvae; Mortality; Laboratory testing; Lipids; polycyclic aromatic hydrocarbons; Embryos; Sediments; Side effects; Ecology; Water Pollution; Death; Hydrocarbons; Life stages (see also Eggs, Larvae); Mollusks; Ultraviolet Radiation; Experimental Data; Water Pollution Effects; Fate of Pollutants; Growth Stages; Ecological Effects; Bivalvia; Marine ER - TY - JOUR T1 - Survey of toxicity in ambient waters of the Hudson/Raritan Estuary, USA: Importance of small-scale variations AN - 20610808; 5549412 AB - This study was part of a characterization of the nature and severity of water-quality problems in the Hudson/Raritan Estuary in New York State and New Jersey, USA. The toxicity of ambient water was measured at 51 stations in the estuary by using standard tests with the sea urchin Arbacia punctulata and the marine red alga Champia parvula. Toxicity identification evaluations on samples from two stations suggested that cationic metals were the source of the observed toxicity. Overall results showed that toxicity could vary as much on the small scale, i.e., with depth and tide at a single site, as over several stations within a given subarea of the estuary. Thus, knowing about small-scale variations in toxicity is essential to understanding the significance of the variations from different areas or different sampling events. JF - Environmental Toxicology and Chemistry AU - Thursby, G B AU - Stern, E A AU - Scott, K J AU - Heltshe, J AD - U.S. Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, Rhode Island 02882, USA Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 2678 EP - 2682 VL - 19 IS - 11 SN - 0730-7268, 0730-7268 KW - Purple-spined sea urchin KW - USA, New Jersey, Raritan R. KW - USA, New York, Hudson R. KW - variations KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Water Resources Abstracts; Toxicology Abstracts KW - Water Pollution KW - water quality KW - Heavy metals KW - Spatial Distribution KW - Water quality KW - Bioassay KW - Spatial variations KW - Arbacia punctulata KW - Distribution (Mathematical) KW - ANW, USA, New Jersey, Raritan Estuary KW - Temporal Distribution KW - Data Collections KW - Metals KW - Estuaries KW - Water Quality KW - Brackish KW - Surveys KW - Pollution surveys KW - ANW, USA, New York KW - Champia parvula KW - Water Pollution Effects KW - Echinoidea KW - Variability KW - Pollution effects KW - Time dependent KW - ANW, USA, Hudson Estuary KW - Sampling KW - Marine KW - Toxicity KW - Water pollution KW - Tides KW - ANW, USA, New Jersey KW - Patchiness KW - X 24166:Environmental impact KW - P 1000:MARINE POLLUTION KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - K 03450:Ecology KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20610808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Survey+of+toxicity+in+ambient+waters+of+the+Hudson%2FRaritan+Estuary%2C+USA%3A+Importance+of+small-scale+variations&rft.au=Thursby%2C+G+B%3BStern%2C+E+A%3BScott%2C+K+J%3BHeltshe%2C+J&rft.aulast=Thursby&rft.aufirst=G&rft.date=2000-11-01&rft.volume=19&rft.issue=11&rft.spage=2678&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-01-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Spatial variations; Heavy metals; Estuaries; Pollution effects; Toxicity; Water quality; Pollution surveys; Patchiness; Metals; Sampling; Tides; Water pollution; water quality; Time dependent; Water Pollution; Distribution (Mathematical); Water Quality; Surveys; Bioassay; Data Collections; Variability; Water Pollution Effects; Spatial Distribution; Temporal Distribution; Arbacia punctulata; Champia parvula; Echinoidea; ANW, USA, New York; ANW, USA, New Jersey; ANW, USA, Hudson Estuary; ANW, USA, New Jersey, Raritan Estuary; Brackish; Marine ER - TY - JOUR T1 - 2,3,7,8-Dibenzo-p-dioxins in Mined Clay Products from the United States: Evidence for Possible Natural Origin AN - 18028712; 4875863 AB - Ball clay was the source of dioxin contamination discovered in selected chickens analyzed as part of a joint U.S. Department of Agriculture/U.S. Environmental Protection Agency national survey of the U.S. poultry supply conducted in 1997. The affected animals, which had been raised in the southern United States, represented approximately 5% of the national poultry production. All of these chickens and other animal food sources (i.e., farm-raised catfish), similarly contaminated, were fed a diet of animal feed containing ball clay as an anti-caking additive. The clay was mined in northwestern Mississippi within a geological formation referred to as the Mississippi Embayment. Individual raw and processed ball clay samples were analyzed for the presence of the 2,3,7,8-PCDDs/-PCDFs. The average toxic equivalents (TEQs) for the raw and processed samples were 1513 and 966 ppt dw, respectively. Other mined clay-based products used in animal feeds revealed lower TEQs. All of the products exhibited either an absence of detectable concentrations of 2,3,7,8-PCDFs or concentrations 2-3 orders of magnitude lower than the PCDDs. The isomer distribution, specific isomer identification, and congener profile of the PCDDs in the clay were established and compared to known sources of dioxin contamination. Several unique features of this isomer distribution are characteristic of the clays and are distinguishable from those of other known sources. These characteristics found in prehistoric clay deposits in the United States and Germany have led to speculation attributing their presence to natural geologic processes. JF - Environmental Science & Technology AU - Ferrario, J B AU - Byrne, C J AU - Cleverly, D H AD - Office of Prevention, Pesticides, and Toxic Substances, OPP/BEAD, Environmental Chemistry Laboratory, Building 1105, U.S. Environmental Protection Agency, John C. Stennis Space Center, Mississippi 39529, USA, Ferrario.Joseph@epa.gov Y1 - 2000/11/01/ PY - 2000 DA - 2000 Nov 01 SP - 4524 EP - 4532 VL - 34 IS - 21 SN - 0013-936X, 0013-936X KW - Pollution Abstracts KW - Agriculture KW - Diets KW - Clay KW - Contamination KW - Toxic materials KW - Poultry farming KW - Dioxins KW - PCDF KW - USA, Mississippi KW - Animal feeds KW - PCDD KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18028712?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=2%2C3%2C7%2C8-Dibenzo-p-dioxins+in+Mined+Clay+Products+from+the+United+States%3A+Evidence+for+Possible+Natural+Origin&rft.au=Ferrario%2C+J+B%3BByrne%2C+C+J%3BCleverly%2C+D+H&rft.aulast=Ferrario&rft.aufirst=J&rft.date=2000-11-01&rft.volume=34&rft.issue=21&rft.spage=4524&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA, Mississippi; PCDD; PCDF; Animal feeds; Clay; Dioxins; Poultry farming; Toxic materials; Diets; Agriculture; Contamination ER - TY - JOUR T1 - On-Road Emission Sampling of a Heavy-Duty Diesel Vehicle for Polychlorinated Dibenzo-p-dioxins and Polychlorinated Dibenzofurans AN - 18018492; 4875858 AB - The first known program to characterize mobile heavy-duty diesel vehicle emissions for polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDDs/Fs) during actual highway and in-city driving was successfully conducted. This technique enables a more representative measurement with reduced uncertainty than dynamometer testing or indirect tunnel emissions characterizations. The post-muffler exhaust of a diesel tractor hauling a loaded trailer was directly sampled with a modified EPA Method 23 train during on-road operation, and the measured PCDD/F emissions were related to driving conditions. The average emission factor obtained from this work was 0.029 ng international toxic equivalency (I-TEQ)/km. The upper limit of the 95% confidence interval provides an estimated emission factor of 0.106 ng I-TEQ/km. These data compare favorably to the limited data available in the literature. Target analyte nondetects were minimal and resulted in little impact on the calculation of I-TEQ levels. No statistical difference in emissions was observed as a function of driving route, largely as a result of the extreme variation in the two valid in-city tests. Analysis of the tractor emissions data showed no clear relationship between TEQ or total PCDD/F emissions and carbon monoxide or total hydrocarbon emissions. JF - Environmental Science & Technology AU - Ryan, J V AU - Gullett, B K AD - National Risk Management Research Laboratory, Air Pollution Prevention and Control Division, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA, ryan.jeff@epa.gov Y1 - 2000/11/01/ PY - 2000 DA - 2000 Nov 01 SP - 4483 EP - 4489 VL - 34 IS - 21 SN - 0013-936X, 0013-936X KW - Pollution Abstracts KW - Motor vehicles KW - Emission measurements KW - PCDF KW - Highways KW - Diesel engines KW - PCDD KW - Exhaust emissions KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18018492?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=On-Road+Emission+Sampling+of+a+Heavy-Duty+Diesel+Vehicle+for+Polychlorinated+Dibenzo-p-dioxins+and+Polychlorinated+Dibenzofurans&rft.au=Ryan%2C+J+V%3BGullett%2C+B+K&rft.aulast=Ryan&rft.aufirst=J&rft.date=2000-11-01&rft.volume=34&rft.issue=21&rft.spage=4483&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Diesel engines; PCDD; PCDF; Emission measurements; Motor vehicles; Exhaust emissions; Highways ER - TY - JOUR T1 - The Effect of Atrazine on Puberty in Male Wistar Rats: An Evaluation in the Protocol for the Assessment of Pubertal Development and Thyroid Function AN - 17809935; 4848628 AB - Since atrazine (ATR), a chlorotriazine herbicide, has been shown previously to alter the secretion of luteinizing hormone (LH) and prolactin (PRL) through a direct effect on the central nervous system (CNS), we hypothesized that exposure to ATR in the EDSTAC male pubertal protocol (juvenile to peripubertal) would alter the development of the male rat reproductive system. We dosed intact male Wistar rats from postnatal day (PND) 23 to 53 and examined several reproductive endpoints. ATR (0, 12.5, 25, 50, 100, 150, or 200 mg/kg) was administered by gavage and an additional pair-fed group was added to compare the effects of any decreased food consumption in the high dose group. Preputial separation (PPS) was significantly delayed in the 12.5, 50, 100, 150, and 200 mg/kg ATR dose groups. PPS was also delayed in the pair-fed group, although significantly less than in the high dose-ATR group. The males were killed on PND 53 or 54, and pituitary, thyroid, testes, epididymides, seminal vesicles, and ventral and lateral prostates were removed. ATR (50 to 200 mg/kg) treatment resulted in a significant reduction in ventral prostate weights, as did the reduced food consumption of the pair-fed group. Testes weights were unaffected by atrazine treatment. Seminal vesicle and epididymal weights were decreased in the high dose-ATR group and the control pair-fed group. However, the difference in epididymal weights was no longer significantly different when body weight was entered as a covariable. Intratesticular testosterone was significantly decreased in the high dose-ATR group on PND 45, but apparent decreases in serum testosterone were not statistically significantly on PND 53. There was a trend for a decrease in luteinizing hormone (LH) as the dose of ATR increased; however, dose group mean LH was not different from controls. Due to the variability of serum prolactin concentrations on PND 53, no significant difference was identified. Although prolactin is involved in the maintenance of LH receptors prior to puberty, we observed no difference in LH receptor number at PND 45 or 53. Serum estrone and estradiol showed dose-related increases that were significant only in the 200 mg/kg-ATR group. No differences were observed in thyroid stimulating hormone (TSH) and thyroxine (T4) between the ATR groups and the control; however triiodothyronine (T3) was elevated in the high dose-ATR group. No differences in hormone levels were observed in the pair-fed animals. These results indicate that ATR delays puberty in the male rat and its mode of action appears to be altering the secretion of steroids and having subsequent effects on the development of the reproductive tract, which appear to be due to ATR's effects on the CNS. Thus, ATR tested positive in the pubertal male screen that the Endocrine-Disrupter Screening and Testing Advisory Committee (EDSTAC) is considering as an optional screen for endocrine disrupters. JF - Toxicological Sciences AU - Stoker, TE AU - Laws, S C AU - Guidici, D L AU - Cooper, R L AD - Gamete and Early Embryo Biology Branch, Reproductive Toxicology Division, MD-72, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 50 EP - 59 VL - 58 IS - 1 SN - 1096-6080, 1096-6080 KW - rats KW - males KW - Toxicology Abstracts KW - Atrazine KW - Herbicides KW - Reproductive organs KW - Steroid hormones KW - Puberty KW - X 24135:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17809935?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=The+Effect+of+Atrazine+on+Puberty+in+Male+Wistar+Rats%3A+An+Evaluation+in+the+Protocol+for+the+Assessment+of+Pubertal+Development+and+Thyroid+Function&rft.au=Stoker%2C+TE%3BLaws%2C+S+C%3BGuidici%2C+D+L%3BCooper%2C+R+L&rft.aulast=Stoker&rft.aufirst=TE&rft.date=2000-11-01&rft.volume=58&rft.issue=1&rft.spage=50&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Herbicides; Atrazine; Puberty; Steroid hormones; Reproductive organs ER - TY - JOUR T1 - Effect of Atrazine on Implantation and Early Pregnancy in 4 Strains of Rats AN - 17807947; 4848638 AB - Atrazine (ATR) is an herbicide that has been shown to have adverse reproductive effects including alterations in levels of pituitary hormones such as prolactin (prl) and luteinizing hormone (LH) in female LE rats when administered at doses of 200 mg/kg/day for 1 and 3 days. Because the action of prl in promotion of progesterone secretion is essential for the initiation of pregnancy in rats, this study was designed to examine the effect of exposure to ATR during early pregnancy on implantation and short-term pregnancy maintenance. Rats were divided into two groups representing periods of dosing with ATR prior to the diurnal or nocturnal surges of prl. Within each group, four groups consisting of four strains of rats were each further subdivided into four ATR dosages. Rats were dosed by gavage with 0, 50, 100, or 200 mg/kg/day ATR on days 1-8 of pregnancy (day 0 = sperm +). All animals were necropsied on day 8 or 9 of pregnancy. The 200 mg/kg dose of ATR reduced body weight gain in all but one group. Two groups of animals dosed at 100 and 200 mg/kg/day in the nocturnal dosing period showed an increase in percent preimplantation loss, and both of these were F344 rats. HLZ rats were the only strain to show a significant level of postimplantation loss and a decrease in serum progesterone at 200 mg/kg/day both following diurnal and nocturnal dosing. Doses of 100 mg/kg/day also produced postimplantation loss following diurnal and nocturnal dosing, but progesterone levels were decreased only after nocturnal dosing. Alterations in serum LH were seen in several groups. Serum estradiol was significantly increased only in SD rats dosed at the diurnal interval with 200 mg/kg ATR. We conclude that F344 rats are most susceptible to preimplantation effects of ATR and that HLZ rats appear most sensitive to the postimplantation effects of the chemical. LE and SD rats were least sensitive to effects of ATR during very early pregnancy. JF - Toxicological Sciences AU - Cummings, A M AU - Rhodes, B E AU - Cooper, R L AD - Reproductive Toxicology Division, MD-72, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 135 EP - 143 VL - 58 IS - 1 SN - 1096-6080, 1096-6080 KW - rats KW - Toxicology Abstracts KW - Progesterone KW - Implantation KW - Luteinizing hormone KW - Atrazine KW - Herbicides KW - Pregnancy KW - X 24135:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17807947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Effect+of+Atrazine+on+Implantation+and+Early+Pregnancy+in+4+Strains+of+Rats&rft.au=Cummings%2C+A+M%3BRhodes%2C+B+E%3BCooper%2C+R+L&rft.aulast=Cummings&rft.aufirst=A&rft.date=2000-11-01&rft.volume=58&rft.issue=1&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Atrazine; Implantation; Pregnancy; Herbicides; Progesterone; Luteinizing hormone ER - TY - JOUR T1 - Laboratory culture of Chironomus tentans for use in toxicity testing: optimum initial egg-stocking densities AN - 17743970; 4808881 AB - This study was conducted to determine the effect of initial culture stocking density on: (1) post-hatch (larval) dry weight, body length and head-capsule width at 10 and 20 days; (2) time to emergence; (3) number and sex of emergent adults; (4) number of larvae and pupae at test termination (day 42 post hatch); and (5) adult dry weight of the midge Chironomus tentans. Mean weight of larvae at 10 days in high density tanks (0.13 mg/organism) was significantly higher (P=0.003) than both the medium and low density tanks (0.10 and 0.09 mg/organism, respectively). No significant differences between the three stocking densities were observed for the body length or head-capsule width at either 10 or 20 days post-hatch. Although not statistically significant, larval dry weight decreased with increased stocking density at day 20. A significantly ( P=0.02) greater number of females (173 plus or minus 28) emerged from the low stocking density compared to both the medium and high stocking densities (123 plus or minus 45 and 118 plus or minus 54, respectively). Peak adult emergence for the low and medium stocking densities occurred between days 22 and 25 post-hatch, whereas peak adult emergence occurred between days 30 and 33 for the high stocking density. Survival relative to the initial number of eggs stocked was significantly greater (P=0.007) in the low density treatment compared to that in either the medium or the high density treatments. Mean adult weight exhibited an inverse relationship with initial stocking densities. At test end, there was not a significant difference in the mean number of organisms surviving and emerging in the three density levels. The central tendency for number of organisms surviving for all three treatments was 504 organisms per tank (0.82 organisms cm super(-2)). The results of this experiment suggest that an optimal egg stocking density of 1.0 egg cm super(-2) ( similar to 600 eggs/tank) be used with the feeding rate identified. This would ensure uniform larvae at the appropriate developmental stage (2nd-3rd instar) needed for toxicological research/testing (e.g. 10 days post-hatch), as well as producing sufficient emergence of males and females for future culture establishment. JF - Hydrobiologia AU - Dawson, T D AU - Jenson, J J AU - Norberg-King, T J AD - SoBran, Inc., 205 W. 2nd Street, Suite 502, Duluth, MN 55802, U.S.A. U.S. Environmental Protection Agency, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN 55804, U.S.A. Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 251 EP - 256 PB - Kluwer Academic Publishers VL - 438 IS - 1-3 SN - 0018-8158, 0018-8158 KW - Ecology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts; Water Resources Abstracts; Entomology Abstracts; ASFA 1: Biological Sciences & Living Resources; Toxicology Abstracts KW - Stocking density KW - Laboratory culture KW - Aquatic Insects KW - Survival KW - Pollution effects KW - Freshwater KW - Toxicity tests KW - Insect eggs KW - Body weight KW - Chironomus tentans KW - Culture Media KW - Aquatic insects KW - Bacteria KW - Sediment pollution KW - Sex ratio KW - Density KW - Test organisms KW - Larvae KW - Toxicity KW - Sediments KW - Insect larvae KW - Water Pollution Effects KW - Standards KW - Emergence KW - Toxicity testing KW - D 04659:Insects KW - Z 05210:Aquatic entomology KW - SW 3030:Effects of pollution KW - Q3 08584:Culture of other aquatic animals KW - Q5 08502:Methods and instruments KW - Q1 08584:Culture of other aquatic animals KW - X 24221:Toxicity testing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17743970?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrobiologia&rft.atitle=Laboratory+culture+of+Chironomus+tentans+for+use+in+toxicity+testing%3A+optimum+initial+egg-stocking+densities&rft.au=Dawson%2C+T+D%3BJenson%2C+J+J%3BNorberg-King%2C+T+J&rft.aulast=Dawson&rft.aufirst=T&rft.date=2000-11-01&rft.volume=438&rft.issue=1-3&rft.spage=251&rft.isbn=&rft.btitle=&rft.title=Hydrobiologia&rft.issn=00188158&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Stocking density; Laboratory culture; Sex ratio; Test organisms; Pollution effects; Survival; Toxicity tests; Insect eggs; Body weight; Insect larvae; Standards; Emergence; Aquatic insects; Toxicity testing; Sediments; Bacteria; Density; Aquatic Insects; Water Pollution Effects; Culture Media; Larvae; Toxicity; Chironomus tentans; Freshwater ER - TY - JOUR T1 - Sediment Toxicity Assessment: Comparison of Standard and New Testing Designs AN - 17738454; 4799754 AB - Standard methods of sediment toxicity testing are fairly well accepted; however, as with all else, evolution of these methods is inevitable. We compared a standard ASTM 10-day amphipod toxicity testing method with smaller, 48- and 96-h test methods using very toxic and reference sediments. In addition we compared parallel exposures of single species, either the amphipod Ampelisca abdita or the mysid Americamysis bahia, to multiple species, mysid, and amphipod, cohabiting the same types of chambers. These comparisons were performed for both water-only and sediment-water tests. Results of the comparison of the standard ASTM 10-day amphipod test with the smaller, 48- and 96-h test chambers indicate that survival was high in both test designs using the reference sediment. With toxic sediments, complete mortality occurred in less than 48 h using the smaller experimental chambers and only after 96 h in the larger experimental chambers. We concluded that although time to death is shorter in the smaller, shorter exposure chambers, there was no overall change in mortality for the organisms, and that the smaller chambers were predictive of the results obtained with larger chambers and longer exposures. For multiple species testing in whole sediment exposures there was no change in toxicity to either the amphipod or the mysid when they cohabited the same chamber. In contrast, for water-only exposures, A. bahia demonstrated less sensitivity when cohabiting the same chamber as A. abdita. Therefore, during whole sediment testing we can add A. bahia and A. abdita to the same test chamber without changing the toxicity to either species; however, in our 10-ml water-only exposures, the species should be tested separately. JF - Archives of Environmental Contamination and Toxicology AU - Ho, K T AU - Kuhn, A AU - Pelletier, M AU - McGee, F AU - Burgess, R M AU - Serbst, J AD - U.S. Environmental Protection Agency, 27 Tarzwell Drive, Narragansett, Rhode Island 02882, USA Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 462 EP - 468 PB - Springer-Verlag VL - 39 IS - 4 SN - 0090-4341, 0090-4341 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts; Toxicology Abstracts KW - Marine KW - Sediment pollution KW - Amphipods KW - Brackish KW - Pollution effects KW - Toxicity KW - Freshwater KW - Toxicity tests KW - Sediments KW - Exposure tolerance KW - Americamysis bahia KW - Bioassays KW - Assessments KW - Lethal limits KW - Ampelisca abdita KW - Sediment Contamination KW - Toxicity testing KW - Q1 08286:Physiology, biochemistry, biophysics KW - Q2 09187:Geochemistry of sediments KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - X 24221:Toxicity testing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17738454?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Environmental+Contamination+and+Toxicology&rft.atitle=Sediment+Toxicity+Assessment%3A+Comparison+of+Standard+and+New+Testing+Designs&rft.au=Ho%2C+K+T%3BKuhn%2C+A%3BPelletier%2C+M%3BMcGee%2C+F%3BBurgess%2C+R+M%3BSerbst%2C+J&rft.aulast=Ho&rft.aufirst=K&rft.date=2000-11-01&rft.volume=39&rft.issue=4&rft.spage=462&rft.isbn=&rft.btitle=&rft.title=Archives+of+Environmental+Contamination+and+Toxicology&rft.issn=00904341&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Bioassays; Lethal limits; Pollution effects; Toxicity tests; Exposure tolerance; Toxicity testing; Sediments; Assessments; Amphipods; Sediment Contamination; Toxicity; Americamysis bahia; Ampelisca abdita; Marine; Brackish; Freshwater ER - TY - JOUR T1 - Development of a Microscale Emission Factor Model for CO for Predicting Real-Time Motor Vehicle Emissions AN - 17733996; 4804523 AB - The U.S. Environmental Protection Agency's (EPA) National Exposure Research Laboratory has initiated a project to improve the methodology for modeling human exposure to motor vehicle emissions. The overall project goal is to develop improved methods for modeling the source through the air pathway to human exposure in significant microenvironments of exposure. This paper presents the technical description of a newly developed model for CO emissions. The sensitivity analysis and evaluation of this emission model is presented in a companion paper titled "Sensitivity Analysis and Evaluation of MicroFacCO: A Microscale Motor Vehicle Emission Factor Model for CO Emissions." The MOBILE models (used in the United States, except California) and EMFAC models (used in California only) used to estimate emissions are suitable for supporting mostly regional (county)-scale modeling and emission inventory because of their dependence on vehicle-miles-traveled aggregate data. These emission models are not designed to estimate real-time emissions needed for human exposure studies near roadways. A number of independent studies have found that current mobile source emission factor models are not very reliable at estimating microscale emissions and are, therefore, inappropriate for use with microscale modeling necessary to estimate human exposures near roadways. A microscale emission factor model for predicting real-world real-time motor vehicle CO emissions (MicroFacCO) has been developed. It uses available information on the vehicle fleet composition. The algorithm used to calculate emission factors in MicroFacCO is disaggregated based on the on-road vehicle fleet. The emission factors are calculated from a real-time fleet rather than from a fleet-wide average estimated by a vehicle-miles-traveled weighting of the emission factors for different vehicle classes. MicroFacCO uses the same database used to develop the MOBILE6 model. As compared with MOBILE emission models, MicroFacCO requires only a few input variables, which are necessary to characterize the real-time fleet being modeled. The main input variables required are on-road vehicle fleet, time and day of year, ambient temperature, and relative humidity. JF - Journal of the Air & Waste Management Association AU - Singh, R B AU - Huber, AH AD - National Exposure Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 1980 EP - 1991 VL - 50 IS - 11 SN - 1047-3289, 1047-3289 KW - MicroFacCO KW - MOBILE KW - Pollution Abstracts KW - Mathematical models KW - Motor vehicles KW - Carbon monoxide KW - Emission measurements KW - Automotive exhaust emissions KW - Air pollution measurements KW - Exhaust emissions KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17733996?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association&rft.atitle=Development+of+a+Microscale+Emission+Factor+Model+for+CO+for+Predicting+Real-Time+Motor+Vehicle+Emissions&rft.au=Singh%2C+R+B%3BHuber%2C+AH&rft.aulast=Singh&rft.aufirst=R&rft.date=2000-11-01&rft.volume=50&rft.issue=11&rft.spage=1980&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association&rft.issn=10473289&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Exhaust emissions; Motor vehicles; Air pollution measurements; Emission measurements; Carbon monoxide; Mathematical models; Automotive exhaust emissions ER - TY - JOUR T1 - Oxalic Acid in PM sub(2.5) Particulate Matter in California AN - 17731516; 4804481 AB - Ambient air monitoring for organic acids in PM sub(2.5) was conducted at several locations in California. During the study, it was found that oxalic acid (ethanedioc acid) was the most abundant organic acid found in the PM sub(2.5) fraction. Samples from Azuza (in southern California), San Jose (in the San Francisco Bay area), and Fresno (in central California), a PM sub(2.5) Super Site, were collected in 1999 and analyzed. The results for oxalic acid concentrations during this monitoring effort are presented. JF - Journal of the Air & Waste Management Association AU - Poore, M W AD - California Environmental Protection Agency, Sacramento, CA, USA Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 1874 EP - 1875 VL - 50 IS - 11 SN - 1047-3289, 1047-3289 KW - USA, California, Azuza KW - USA, California, Fresno KW - USA, California, San Jose KW - oxalic acid KW - Pollution Abstracts KW - Acids KW - Air sampling KW - Particulates KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17731516?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association&rft.atitle=Oxalic+Acid+in+PM+sub%282.5%29+Particulate+Matter+in+California&rft.au=Poore%2C+M+W&rft.aulast=Poore&rft.aufirst=M&rft.date=2000-11-01&rft.volume=50&rft.issue=11&rft.spage=1874&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association&rft.issn=10473289&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Air sampling; Particulates; Acids ER - TY - JOUR T1 - Arsenic species that cause release of iron from ferritin and generation of activated oxygen. AN - 72389925; 11068869 AB - The in vitro effects of four different species of arsenic (arsenate, arsenite, monomethylarsonic acid, and dimethylarsinic acid) in mobilizing iron from horse spleen ferritin under aerobic and anaerobic conditions were investigated. Dimethylarsinic acid (DMA(V)) and dimethylarsinous acid (DMA(III)) significantly released iron from horse spleen ferritin either with or without the presence of ascorbic acid, a strong synergistic agent. Ascorbic acid-mediated iron release was time-dependent as well as both DMA(III) and ferritin concentration-dependent. Iron release from ferritin by DMA(III)) alone or with ascorbic acid was not significantly inhibited by superoxide dismutase (150 or 300 units/ml). However, the iron release was greater under anaerobic conditions (nitrogen gas), which indicates direct chemical reduction of iron from ferritin by DMA(III), with or without ascorbic acid. Both DMA(V) and DMA(III)) released iron from both horse spleen and human liver ferritin. Further, the release of ferritin iron by DMA(III)) with ascorbic acid catalyzed bleomycin-dependent degradation of calf thymus DNA. These results indicate that exogenous methylated arsenic species and endogenous ascorbic acid can cause (a) the release of iron from ferritin, (b) the iron-dependent formation of reactive oxygen species, and (c) DNA damage. This reactive oxygen species pathway could be a mechanism of action of arsenic carcinogenesis in man. JF - Archives of biochemistry and biophysics AU - Ahmad, S AU - Kitchin, K T AU - Cullen, W R AD - Environmental Carcinogenesis Division, US Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. Y1 - 2000/10/15/ PY - 2000 DA - 2000 Oct 15 SP - 195 EP - 202 VL - 382 IS - 2 SN - 0003-9861, 0003-9861 KW - Arsenates KW - 0 KW - Arsenicals KW - Arsenites KW - Carcinogens KW - Reactive Oxygen Species KW - Ferritins KW - 9007-73-2 KW - Cacodylic Acid KW - AJ2HL7EU8K KW - Iron KW - E1UOL152H7 KW - Glutathione KW - GAN16C9B8O KW - monomethylarsonic acid KW - J37VJ5709S KW - arsenite KW - N5509X556J KW - Arsenic KW - N712M78A8G KW - arsenic acid KW - N7CIZ75ZPN KW - Index Medicus KW - Animals KW - Glutathione -- metabolism KW - Humans KW - Arsenites -- toxicity KW - Carcinogens -- toxicity KW - Horses KW - Cattle KW - Kinetics KW - In Vitro Techniques KW - Arsenates -- toxicity KW - Arsenicals -- adverse effects KW - Cacodylic Acid -- toxicity KW - Methylation KW - Neoplasms -- etiology KW - Arsenic -- pharmacokinetics KW - Reactive Oxygen Species -- metabolism KW - Ferritins -- chemistry KW - Arsenic -- toxicity KW - Ferritins -- metabolism KW - Ferritins -- drug effects KW - Iron -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72389925?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+biochemistry+and+biophysics&rft.atitle=Arsenic+species+that+cause+release+of+iron+from+ferritin+and+generation+of+activated+oxygen.&rft.au=Ahmad%2C+S%3BKitchin%2C+K+T%3BCullen%2C+W+R&rft.aulast=Ahmad&rft.aufirst=S&rft.date=2000-10-15&rft.volume=382&rft.issue=2&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Archives+of+biochemistry+and+biophysics&rft.issn=00039861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-11-28 N1 - Date created - 2000-11-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effect of Ozone on Diesel Exhaust Particle Toxicity in Rat Lung AN - 17687979; 4771912 AB - Ambient particulate matter (PM) concentrations have been associated with mortality and morbidity. Diesel exhaust particles (DEP) are present in ambient urban air PM. Coexisting with DEP (and PM) is ozone (O sub(3)), which has the potential to react with some components of DEP. Some reports have shown increased lung injury in rats coexposed to PM and O sub(3), but it is unclear whether this increased injury was due to direct interaction between the pollutants or via other mechanisms. To examine whether O sub(3) can directly react with and affect PM bioactivity, we exposed DEP to O sub(3) in a cell-free in vitro system and then examined the bioactivity of the resultant DEP in a rat model of lung injury. Standard Reference Material 2975 (diesel exhaust PM) was initially exposed to 0.1 ppm O sub(3) for 48 h and then instilled intratracheally in Sprague-Dawley rats. Rat lung inflammation and injury was examined 24 h after instillation by lung lavage. The DEP exposed to 0.1 ppm O sub(3) was more potent in increasing neutrophilia, lavage total protein, and LDH activity compared to unexposed DEP. The increased DEP activity induced by the O sub(3) exposure was not attributable to alteration by air that was also present during the O sub(3) exposure. Exposure of DEP to a higher O sub(3) concentration (1.0 ppm) led to a decreased bioactivity of the particles. In contrast, carbon black particles, low in organic content relative to DEP, did not exhibit an increase in any of the bioactivities examined after exposure to 0.1 ppm O sub(3). DEP incorporated O sub(3) (labeled with super(18)O) in a linear fashion. These data suggest that ambient concentrations of O sub(3) can increase the biological potency of DEP. The ozonized DEP may play a role in the induction of lung responses by ambient PM. JF - Toxicology and Applied Pharmacology AU - Madden, M C AU - Richards, J H AU - Dailey, LA AU - Hatch, GE AU - Ghio, A J AD - National Health and Environmental Effects Research Laboratory, U.S. EPA, Research Triangle Park, 27711, North Carolina, madden.michael@epa.gov Y1 - 2000/10/15/ PY - 2000 DA - 2000 Oct 15 SP - 140 EP - 148 PB - Academic Press VL - 168 IS - 2 SN - 0041-008X, 0041-008X KW - rats KW - diesel KW - Toxicology Abstracts KW - Air pollution KW - Lung KW - Particulate matter KW - Ozone KW - Exhausts KW - X 24240:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17687979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+and+Applied+Pharmacology&rft.atitle=Effect+of+Ozone+on+Diesel+Exhaust+Particle+Toxicity+in+Rat+Lung&rft.au=Madden%2C+M+C%3BRichards%2C+J+H%3BDailey%2C+LA%3BHatch%2C+GE%3BGhio%2C+A+J&rft.aulast=Madden&rft.aufirst=M&rft.date=2000-10-15&rft.volume=168&rft.issue=2&rft.spage=140&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+Applied+Pharmacology&rft.issn=0041008X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Exhausts; Lung; Particulate matter; Air pollution; Ozone ER - TY - JOUR T1 - Feasibility of electrokinetic soil remediation in horizontal Lasagna cells. AN - 71758962; 10946126 AB - An integrated soil remediation technology called Lasagna has been developed that combines electrokinetics with treatment zones for use in low permeability soils where the rates of hydraulic and electrokinetic transport are too low to be useful for remediation of contaminants. The technology was developed by two groups, one involving industrial partners and the DOE and another involving US EPA and the University of Cincinnati, who pursued different electrode geometries. The Industry/DOE group has demonstrated the technology using electrodes and treatment zones installed vertically from the soil surface. We have demonstrated the feasibility of installing horizontal electrodes and treatment zones in subsurface soils by hydraulic fracturing, a process that we adapted from petroleum industry practices. When horizontal electrodes were connected to a dc power supply, uniform electrical potential gradients of 10-40 V/m were created in soil between the electrodes, inducing electroosmotic flow that facilitated movement of water and contaminants into treatment zones between the electrodes. JF - Journal of hazardous materials AU - Roulier, M AU - Kemper, M AU - Al-Abed, S AU - Murdoch, L AU - Cluxton, P AU - Chen, J AU - Davis-Hoover, W AD - National Risk Management Research Laboratory, US Environmental Protection Agency, 26 W. Martin L. King Dr., Cincinnati, OH 45268, USA. roulier.michael@epamail.epa.gov Y1 - 2000/10/02/ PY - 2000 DA - 2000 Oct 02 SP - 161 EP - 176 VL - 77 IS - 1-3 SN - 0304-3894, 0304-3894 KW - Soil Pollutants KW - 0 KW - Index Medicus KW - Permeability KW - Equipment Design KW - Kinetics KW - Electrochemistry KW - Osmosis KW - Refuse Disposal -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71758962?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+hazardous+materials&rft.atitle=Feasibility+of+electrokinetic+soil+remediation+in+horizontal+Lasagna+cells.&rft.au=Roulier%2C+M%3BKemper%2C+M%3BAl-Abed%2C+S%3BMurdoch%2C+L%3BCluxton%2C+P%3BChen%2C+J%3BDavis-Hoover%2C+W&rft.aulast=Roulier&rft.aufirst=M&rft.date=2000-10-02&rft.volume=77&rft.issue=1-3&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Journal+of+hazardous+materials&rft.issn=03043894&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-27 N1 - Date created - 2000-10-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Modeling assessment of transport and deposition patterns of anthropogenic mercury air emissions in the United States and Canada AN - 19920088; 4780581 AB - In December 1997, the U.S. Environmental Protection Agency submitted its mercury study report to Congress, which included a modeling assessment of the long-range transport and deposition of mercury from various residential and industrial sources within the United States, based on numerical simulations of elemental mercury gas, divalent mercury gas and particulate mercury, using a special version of the Regional Lagrangian Model of Air Pollution (RELMAP). Observations of the deposition of total precipitated mercury at several locations within the U.S. were compared to the modeling results in order to evaluate the accuracy of the RELMAP simulations. However, the lack of Canadian mercury emissions data in the RELMAP modeling limited the usefulness of this model evaluation at locations near the Canadian border. An inventory of Canadian mercury emissions obtained from Environment Canada has now been added to the RELMAP mercury modeling, and the previous simulations and evaluation of modeled wet deposition have been repeated. The results indicate that emissions of mercury from Canada, as represented by the new inventory, do not significantly impact simulated wet deposition over the United States, nor the general results of the previous model evaluation. Analyses of the simulated transport and deposition patterns of mercury emissions from both the United States and Canada are presented, along with the simulated fraction of total mercury wet deposition, separately attributable to sources within each nation. JF - Science of the Total Environment AU - Bullock, OR Jr AD - Atmospheric Sciences Modeling Division, Air Resources Laboratory, National Oceanic and Atmospheric Administration, Mail Drop 80, Research Triangle Park, NC 27711, USA, bro@hpcc.epa.gov A2 - Levin, L A2 - Lindberg, S A2 - Porcella, D (eds) Y1 - 2000/10/02/ PY - 2000 DA - 2000 Oct 02 SP - 145 EP - 157 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 259 IS - 1-3 SN - 0048-9697, 0048-9697 KW - Canada KW - RELMAP KW - USA KW - Sustainability Science Abstracts; Human Population; Pollution Abstracts KW - Air pollution KW - Emission inventories KW - Pollutant deposition KW - Pollution dispersion KW - Mercury KW - Simulation KW - Wet deposition KW - M1 230:Human Population-Atmosphere Interactions KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19920088?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Science+of+the+Total+Environment&rft.atitle=Modeling+assessment+of+transport+and+deposition+patterns+of+anthropogenic+mercury+air+emissions+in+the+United+States+and+Canada&rft.au=Bullock%2C+OR+Jr&rft.aulast=Bullock&rft.aufirst=OR&rft.date=2000-10-02&rft.volume=259&rft.issue=1-3&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Science+of+the+Total+Environment&rft.issn=00489697&rft_id=info:doi/10.1016%2FS0048-9697%2800%2900578-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Air pollution; Simulation; Mercury; Pollutant deposition; Emission inventories; Pollution dispersion; Wet deposition DO - http://dx.doi.org/10.1016/S0048-9697(00)00578-7 ER - TY - JOUR T1 - A system for simultaneous multiple subject, multiple stimulus modality, and multiple channel collection and analysis of sensory evoked potentials. AN - 85269157; pmid-11040406 AB - A system has been developed for collecting sensory evoked potentials simultaneously from multiple channels for multiple subjects at up to 80 kHz sample rate per channel. Sample rates up to 200 kHz are available for four or less chambers and a single channel per chamber. A variety of visual, somatosensory, and auditory stimuli may be presented singly or simultaneously. Collected waveforms are associated with searchable text (metadata) to allow convenient selection from a relational database. Multiple waveforms can then be easily grouped for analysis and processed. Results can be exported to other software for further graphics or statistical processing. Scripting and event logging are available to provide automation and improve data confidence. Sample data are presented from control animals for each of the sensory modalities for comparison with historical data collected from other systems. JF - Journal of Neuroscience Methods AU - Hamm, C W AU - Ali, J S AU - Herr, D W AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, United States Environmental Protection Agency, Research Triangle Park, NC 27711, USA. PY - 2000 SP - 95 EP - 108 VL - 102 IS - 2 SN - 0165-0270, 0165-0270 KW - Databases KW - Software KW - Animal KW - Support, U.S. Gov't, Non-P.H.S. KW - Data Collection KW - Electrophysiology KW - Physical Stimulation KW - Sensation KW - Evoked Potentials UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85269157?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Neuroscience+Methods&rft.atitle=A+system+for+simultaneous+multiple+subject%2C+multiple+stimulus+modality%2C+and+multiple+channel+collection+and+analysis+of+sensory+evoked+potentials.&rft.au=Hamm%2C+C+W%3BAli%2C+J+S%3BHerr%2C+D+W&rft.aulast=Hamm&rft.aufirst=C&rft.date=2000-10-01&rft.volume=102&rft.issue=2&rft.spage=95&rft.isbn=&rft.btitle=&rft.title=Journal+of+Neuroscience+Methods&rft.issn=01650270&rft_id=info:doi/ LA - eng DB - ComDisDome N1 - Last updated - 2010-05-07 ER - TY - JOUR T1 - Response to "Epigenetic mechanisms of chemical carcinogenesis" by James E. Klaunig, Lisa M. Kamendulis, and Xu Yong. AN - 72561612; 11211993 JF - Human & experimental toxicology AU - DeAngelo, A B AD - National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 561 EP - 2; discussion 571-2 VL - 19 IS - 10 SN - 0960-3271, 0960-3271 KW - Carcinogens KW - 0 KW - Index Medicus KW - Animals KW - Humans KW - Neoplasms -- chemically induced KW - Carcinogens -- toxicity KW - Neoplasms -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72561612?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Human+%26+experimental+toxicology&rft.atitle=Response+to+%22Epigenetic+mechanisms+of+chemical+carcinogenesis%22+by+James+E.+Klaunig%2C+Lisa+M.+Kamendulis%2C+and+Xu+Yong.&rft.au=DeAngelo%2C+A+B&rft.aulast=DeAngelo&rft.aufirst=A&rft.date=2000-10-01&rft.volume=19&rft.issue=10&rft.spage=561&rft.isbn=&rft.btitle=&rft.title=Human+%26+experimental+toxicology&rft.issn=09603271&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-04-26 N1 - Date created - 2001-02-09 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Comment On: Hum Exp Toxicol. 2000 Oct;19(10):543-55 [11211991] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Response to Klaunig J.E. et al.'s "Epigenetic mechanisms of chemical carcinogenesis". AN - 72555382; 11211996 JF - Human & experimental toxicology AU - Preston, R J AD - Environmental Carcinogenesis Division, US Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 569 EP - 70; discussion 571-2 VL - 19 IS - 10 SN - 0960-3271, 0960-3271 KW - Carcinogens KW - 0 KW - Index Medicus KW - Animals KW - Humans KW - Neoplasms -- chemically induced KW - Carcinogens -- toxicity KW - Neoplasms -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72555382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Human+%26+experimental+toxicology&rft.atitle=Response+to+Klaunig+J.E.+et+al.%27s+%22Epigenetic+mechanisms+of+chemical+carcinogenesis%22.&rft.au=Preston%2C+R+J&rft.aulast=Preston&rft.aufirst=R&rft.date=2000-10-01&rft.volume=19&rft.issue=10&rft.spage=569&rft.isbn=&rft.btitle=&rft.title=Human+%26+experimental+toxicology&rft.issn=09603271&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-04-26 N1 - Date created - 2001-02-09 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Comment On: Hum Exp Toxicol. 2000 Oct;19(10):543-55 [11211991] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Persistence and distribution of azinphos-methyl following application to littoral enclosure mesocosms. AN - 72317032; 11023695 AB - The organophosphorus insecticide azinphos-methyl was applied once to the surface of 12 of 18 littoral enclosure mesocosms (5x10 m) constructed in a 2-ha pond near Duluth, Minnesota. Water, sediment, macrophytes, and adult fathead minnows were analyzed for residue to determine the persistence, distribution, and mass balance of azinphos-methyl. Nominal treatment concentrations were 0, 0.2, 1, 4, and 20 microg/liter active ingredient. The maximum residue concentration in the water was measured 1h after treatment. The half-life in the water column ranged from 1.2 to 2 days and 95% of the residue dissipated in 5.4 to 10.2 days. Measurable residues were found in the sediment, macrophytes, and fish. Maximum residues in these media were measured at 4, 1, and 0.12 days. respectively. The water and sediment were the most important sorptive compartments for azinphos-methyl residue. The macrophytes and fish were of minor importance, containing only trace amounts of the mass applied. JF - Ecotoxicology and environmental safety AU - Knuth, M L AU - Heinis, L J AU - Anderson, L E AD - Mid-Continent Ecology Division, U.S. Environmental Protection Agency, 6201 Congdon Boulevard, Duluth, Minnesota 55804, USA. knuth.michael@epa.gov Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 167 EP - 177 VL - 47 IS - 2 SN - 0147-6513, 0147-6513 KW - Insecticides KW - 0 KW - Water Pollutants, Chemical KW - Azinphosmethyl KW - 265842EWUV KW - Index Medicus KW - Cyprinidae -- metabolism KW - Animals KW - Half-Life KW - Fresh Water -- analysis KW - Water Pollutants, Chemical -- analysis KW - Eukaryota -- chemistry KW - Hydrogen-Ion Concentration KW - Climate KW - Eukaryota -- metabolism KW - Biomass KW - Azinphosmethyl -- isolation & purification KW - Insecticides -- isolation & purification KW - Insecticides -- analysis KW - Ecological Systems, Closed KW - Azinphosmethyl -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72317032?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecotoxicology+and+environmental+safety&rft.atitle=Persistence+and+distribution+of+azinphos-methyl+following+application+to+littoral+enclosure+mesocosms.&rft.au=Knuth%2C+M+L%3BHeinis%2C+L+J%3BAnderson%2C+L+E&rft.aulast=Knuth&rft.aufirst=M&rft.date=2000-10-01&rft.volume=47&rft.issue=2&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=Ecotoxicology+and+environmental+safety&rft.issn=01476513&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-12 N1 - Date created - 2000-12-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Mammalian class theta GST and differential susceptibility to carcinogens: a review. AN - 72307261; 11018744 AB - Glutathione S-transferases (GSTs) are an important part of the cellular detoxification system and, perhaps, evolved to protect cells against reactive oxygen metabolites. Theta is considered the most ancient among the GSTs and theta-like GSTs are found in mammals, fish, insects, plants, unicellular algae, and bacteria. It is thought that an ancestral theta-gene underwent an early duplication before the divergence of fungi and animals and further duplications generated the variety of the other classes of GSTs (alpha, mu, phi, etc.). The comparison of the aminoacidic homologies among mammals suggests that a duplication of an ancient GST theta occurred before the speciation of mammals and resulted in the subunits GSTT1 and GSTT2. The ancestral GST theta has a dehalogenase activity towards several halogenated compounds, such as the dichloromethane. In fact, some aerobic and anaerobic methylotrophic bacteria can use these molecules as the sole carbon and energy source. The mammalian GST theta cannot sustain the growth of bacteria but still retains the dehalogenating activity. Therefore, although mammalian GST theta behaves as a scavenger towards electrophiles, such as epoxides, it acts also as metabolic activator for halogenated compounds, producing a variety of intermediates potentially dangerous for DNA and cells. For example, mice exposed to dichloromethane show a dose-dependent incidence of cancer via the GSTT1-1 pathway. Because GSTT1-1 is polymorphic in humans, with about 20% of Caucasians and 80% of Asians lacking the enzyme, the relationship between the phenotype and the incidence of cancer has been investigated extensively in order to detect GSTT1-1-associated differential susceptibility towards endogenous or exogenous carcinogens. The lack of the enzyme is related to a slightly increased risk of cancer of the bladder, gastro-intestinal tract, and for tobacco-related tumors (lung or oral cavity). More pronounced risks were found in males with the GSTT1-null genotype for brain diseases and skin basal cell carcinomas not related to sunlight exposures. Moreover, there was an increased risk of kidney and liver tumors in humans with the GSTT1-1 positive genotype following exposures to halogenated solvents. Interestingly, the liver and kidney are two organs that express the highest level of GST theta in the human body. Thus, the GSTT1-1 genotype is suspected to confer decreased or increased risk of cancer in relation to the source of exposure; in vitro studies, mostly conducted on metabolites of butadiene, confirm the protective action of GSTT1-1, whereas, thus far, experimental studies prove that the increasing risk is limited. JF - Mutation research AU - Landi, S AD - Environmental Carcinogenesis Division, US Environmental Protection Agency, Research, Triangle Park, NC 27711, USA. landi@iarc.fr Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 247 EP - 283 VL - 463 IS - 3 SN - 0027-5107, 0027-5107 KW - Bacterial Proteins KW - 0 KW - Carcinogens KW - Prodrugs KW - GSTT2 protein, human KW - EC 2.5.1.- KW - Gstt2 protein, mouse KW - Gstt2 protein, rat KW - glutathione S-transferase T1 KW - Glutathione Transferase KW - EC 2.5.1.18 KW - glutathione S-transferase M1 KW - Lyases KW - EC 4.- KW - dichloromethane dehalogenase KW - EC 4.5.- KW - Intramolecular Oxidoreductases KW - EC 5.3.- KW - dopachrome isomerase KW - EC 5.3.3.12 KW - Index Medicus KW - Continental Population Groups -- genetics KW - Animals KW - Bacterial Proteins -- genetics KW - Gene Frequency KW - Humans KW - Drug Resistance KW - Sequence Homology KW - Myelodysplastic Syndromes -- genetics KW - Neoplasms -- genetics KW - Rats KW - Oxidation-Reduction KW - Genes KW - Sequence Alignment KW - Bacterial Proteins -- chemistry KW - Neoplasms -- chemically induced KW - Molecular Sequence Data KW - Lyases -- chemistry KW - Genetic Predisposition to Disease KW - Male KW - Sequence Deletion KW - Protein Conformation KW - Neoplasms -- enzymology KW - Polymorphism, Genetic KW - Models, Molecular KW - Dimerization KW - Smoking -- adverse effects KW - Lyases -- genetics KW - Prodrugs -- pharmacokinetics KW - Organ Specificity KW - Amino Acid Sequence KW - Mice KW - Evolution, Molecular KW - Genotype KW - Base Sequence KW - Inactivation, Metabolic KW - Intramolecular Oxidoreductases -- genetics KW - Myelodysplastic Syndromes -- enzymology KW - Enzyme Induction KW - Substrate Specificity KW - Protein Structure, Tertiary KW - Species Specificity KW - Female KW - Glutathione Transferase -- physiology KW - Carcinogens -- pharmacokinetics KW - Glutathione Transferase -- chemistry KW - Mammals -- metabolism KW - Glutathione Transferase -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72307261?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+research&rft.atitle=Mammalian+class+theta+GST+and+differential+susceptibility+to+carcinogens%3A+a+review.&rft.au=Landi%2C+S&rft.aulast=Landi&rft.aufirst=S&rft.date=2000-10-01&rft.volume=463&rft.issue=3&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Mutation+research&rft.issn=00275107&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-01 N1 - Date created - 2000-12-01 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Role of oxidative damage in arsenic-induced teratogenesis. AN - 72277833; 10992270 JF - Teratology AU - Hunter, E S AD - Developmental Biology Branch, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. hunter.sid@epa.gov Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 240 VL - 62 IS - 4 SN - 0040-3709, 0040-3709 KW - Arsenic KW - N712M78A8G KW - Index Medicus KW - Animals KW - Mice KW - Arsenic -- toxicity KW - Oxidative Stress KW - Abnormalities, Drug-Induced -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72277833?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Teratology&rft.atitle=Role+of+oxidative+damage+in+arsenic-induced+teratogenesis.&rft.au=Hunter%2C+E+S&rft.aulast=Hunter&rft.aufirst=E&rft.date=2000-10-01&rft.volume=62&rft.issue=4&rft.spage=240&rft.isbn=&rft.btitle=&rft.title=Teratology&rft.issn=00403709&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-11-09 N1 - Date created - 2000-10-25 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Polychlorinated biphenyl-stimulation of Ca(2+) oscillations in developing neocortical cells: a role for excitatory transmitters and L-type voltage-sensitive Ca(2+) channels. AN - 72271590; 10991967 AB - Developmental exposure to polychlorinated biphenyls (PCBs), environmental toxicants found throughout the world, results in neurodevelopmental delays and/or deficits. Previous mechanistic studies have demonstrated that PCBs elicit a broad spectrum of biochemical responses that include slow, graded increases in intracellular Ca(2+). Acute exposure of cultures of newborn rodent cortical neurons to the commercial PCB mixture Aroclor 1254 [A1254; 1-20 microM (0.3-6 ppm)], induced recurring oscillations of intracellular Ca(2+) concentration (individual Ca(2+) amplitudes of 200-600 nM). This oscillatory activity was absent in control (0.5 mM Mg(2+)-containing) solution. Ca(2+) oscillations induced by a 1-h exposure to A1254 were concentration dependent, as measured by cell recruitment (proportion of responding cells) as well as by Ca(2+) oscillation frequency and amplitude. Extracellular Ca(2+) entry via L-type voltage-sensitive Ca(2+) channels (VSCCs) was required to elicit the Ca(2+) oscillations because oscillations induced by A1254 were blocked in Ca(2+)-deficient solution or by addition of 1 microM nifedipine. Tetrodotoxin also blocked the Ca(2+) oscillations, suggesting that synaptic activity may activate VSCCs. To examine this further, the role of postsynaptic receptors that indirectly activate L-type VSCCs was examined. At 4 to 5 days in vitro, when GABA exerts a depolarizing action and activates L-type channels, addition of bicuculline blocked Ca(2+) oscillations induced by A1254. After longer maintenance of the cells in vitro (7 days), A1254-induced Ca(2+) oscillations were selectively blocked by a combination of N-methyl-D-aspartate and non-N-methyl-D-aspartate receptor antagonists (D-2-amino-5-phosphonopentanoic acid and 2, 3-dihydroxy-6,7-dinitroquinoxaline, respectively). These novel findings show the induction of network activity in an in vitro model by A1254 via activation of excitatory GABAergic and/or glutamatergic synaptic activity, depending on the stage of maturation. JF - The Journal of pharmacology and experimental therapeutics AU - Inglefield, J R AU - Shafer, T J AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA. inglefield.jon@epamail.epa.gov Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 105 EP - 113 VL - 295 IS - 1 SN - 0022-3565, 0022-3565 KW - Calcium Channels, L-Type KW - 0 KW - Chlorides KW - Receptors, GABA-A KW - Receptors, Glutamate KW - Chlorodiphenyl (54% Chlorine) KW - 11097-69-1 KW - Index Medicus KW - Rats KW - Animals KW - Rats, Long-Evans KW - Dose-Response Relationship, Drug KW - Chlorides -- metabolism KW - Neocortex -- metabolism KW - Chlorodiphenyl (54% Chlorine) -- toxicity KW - Calcium Signaling -- drug effects KW - Receptors, GABA-A -- physiology KW - Calcium Channels, L-Type -- physiology KW - Receptors, Glutamate -- physiology KW - Neocortex -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72271590?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+pharmacology+and+experimental+therapeutics&rft.atitle=Polychlorinated+biphenyl-stimulation+of+Ca%282%2B%29+oscillations+in+developing+neocortical+cells%3A+a+role+for+excitatory+transmitters+and+L-type+voltage-sensitive+Ca%282%2B%29+channels.&rft.au=Inglefield%2C+J+R%3BShafer%2C+T+J&rft.aulast=Inglefield&rft.aufirst=J&rft.date=2000-10-01&rft.volume=295&rft.issue=1&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+pharmacology+and+experimental+therapeutics&rft.issn=00223565&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-11-03 N1 - Date created - 2000-11-03 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Is acidification still an ecological threat?; discussion and reply AN - 52293518; 2000-075502 JF - Nature (London) AU - Alewell, C AU - Manderscheid, B AU - Meesenburg, H AU - Bittersohl, J AU - Stoddard, J L AU - Jeffries, D S AU - Luekewille, A AU - Forsius, M AU - Mannio, J AU - Wilander, A Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 856 EP - 858 PB - Macmillan Journals, London VL - 407 IS - 6806 SN - 0028-0836, 0028-0836 KW - United States KW - soils KW - sorption KW - sulfate ion KW - degradation KW - pollution KW - Europe KW - atmospheric precipitation KW - acid rain KW - dry deposition KW - Central Europe KW - soil quality KW - chemical properties KW - acidification KW - ecology KW - Germany KW - geochemistry KW - rain KW - pH KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52293518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=Is+acidification+still+an+ecological+threat%3F%3B+discussion+and+reply&rft.au=Alewell%2C+C%3BManderscheid%2C+B%3BMeesenburg%2C+H%3BBittersohl%2C+J%3BStoddard%2C+J+L%3BJeffries%2C+D+S%3BLuekewille%2C+A%3BForsius%2C+M%3BMannio%2C+J%3BWilander%2C+A&rft.aulast=Alewell&rft.aufirst=C&rft.date=2000-10-01&rft.volume=407&rft.issue=6806&rft.spage=856&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/ L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 13 N1 - Document feature - illus. N1 - SuppNotes - For reference to original see Stoddard, J. L., et al., Nature, Vol. 401, p. 575-578, 1999 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - acid rain; acidification; atmospheric precipitation; Central Europe; chemical properties; degradation; dry deposition; ecology; Europe; geochemistry; Germany; pH; pollution; rain; soil quality; soils; sorption; sulfate ion; United States ER - TY - JOUR T1 - Forces dictating colloidal interactions between viruses and soil AN - 52213781; 2001-050079 JF - Chemosphere (Oxford) AU - Chattopadhyay, Sandip AU - Puls, Robert W Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 1279 EP - 1286 PB - Pergamon VL - 41 IS - 8 SN - 0045-6535, 0045-6535 KW - soils KW - silicates KW - sorption KW - electrical properties KW - colloidal materials KW - pollution KW - mathematical models KW - hectorite KW - kaolinite KW - electrochemical properties KW - drinking water KW - ground water KW - clay minerals KW - transport KW - decontamination KW - filtration KW - viruses KW - sheet silicates KW - mobility KW - aquatic environment KW - pH KW - sorbents KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52213781?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=Forces+dictating+colloidal+interactions+between+viruses+and+soil&rft.au=Chattopadhyay%2C+Sandip%3BPuls%2C+Robert+W&rft.aulast=Chattopadhyay&rft.aufirst=Sandip&rft.date=2000-10-01&rft.volume=41&rft.issue=8&rft.spage=1279&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 20 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - aquatic environment; clay minerals; colloidal materials; decontamination; drinking water; electrical properties; electrochemical properties; filtration; ground water; hectorite; kaolinite; mathematical models; microorganisms; mobility; pH; pollution; sheet silicates; silicates; soils; sorbents; sorption; transport; viruses ER - TY - JOUR T1 - Status of the drinking water standards program in the United States AN - 52192256; 2001-062161 JF - Water, Air and Soil Pollution AU - Brass, H J A2 - Belkin, Shimshon Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 1 EP - 9 PB - Kluwer Academic Publishers, Dordrecht VL - 123 IS - 1-4 SN - 0049-6979, 0049-6979 KW - water quality KW - programs KW - monitoring KW - regulations KW - surface water KW - legislation KW - government agencies KW - U. S. Environmental Protection Agency KW - pollution KW - standardization KW - Safe Drinking Water Act KW - bioremediation KW - research KW - drinking water KW - cost KW - remediation KW - ground water KW - water treatment KW - risk assessment KW - economics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52192256?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water%2C+Air+and+Soil+Pollution&rft.atitle=Status+of+the+drinking+water+standards+program+in+the+United+States&rft.au=Brass%2C+H+J&rft.aulast=Brass&rft.aufirst=H&rft.date=2000-10-01&rft.volume=123&rft.issue=1-4&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Water%2C+Air+and+Soil+Pollution&rft.issn=00496979&rft_id=info:doi/ L2 - http://www.springerlink.com/(hi4cjunvnzs4hnradzi0ib55)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100344,1 LA - English DB - GeoRef N1 - Conference title - 7th international conference of the Israel Society for Ecology and Environmental Quality Sciences N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 12 N1 - Last updated - 2012-06-07 N1 - CODEN - WAPLAC N1 - SubjectsTermNotLitGenreText - bioremediation; cost; drinking water; economics; government agencies; ground water; legislation; monitoring; pollution; programs; regulations; remediation; research; risk assessment; Safe Drinking Water Act; standardization; surface water; U. S. Environmental Protection Agency; water quality; water treatment ER - TY - JOUR T1 - Environmental Science & Technology, ES & T AN - 51963745; 2003-053784 JF - Environmental Science & Technology, ES & T AU - Griffiths, Richard AU - Allison, Charles R AU - Chen, W AU - Kan, A T AU - Tomson, M B Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 4249 PB - American Chemical Society, Washington, DC VL - 34 IS - 19 SN - 0013-936X, 0013-936X KW - critical review KW - chlorinated hydrocarbons KW - concentration KW - chlorobenzene KW - experimental studies KW - desorption KW - finite difference analysis KW - statistical analysis KW - pollution KW - mathematical models KW - adsorption KW - organic compounds KW - isotherms KW - sediments KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - halogenated hydrocarbons KW - risk assessment KW - sediment quality KW - kinetics KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51963745?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Environmental+Science+%26amp%3B+Technology%2C+ES+%26amp%3B+T&rft.au=Griffiths%2C+Richard%3BAllison%2C+Charles+R%3BChen%2C+W%3BKan%2C+A+T%3BTomson%2C+M+B&rft.aulast=Griffiths&rft.aufirst=Richard&rft.date=2000-10-01&rft.volume=34&rft.issue=19&rft.spage=4249&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 1 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - For reference to original see Chen, W.et al., Environ. Sci. Technol., Vol. 34, p. 385-392, 2000 N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - adsorption; aromatic hydrocarbons; chlorinated hydrocarbons; chlorobenzene; concentration; critical review; desorption; experimental studies; finite difference analysis; halogenated hydrocarbons; hydrocarbons; isotherms; kinetics; mathematical models; organic compounds; pollution; polycyclic aromatic hydrocarbons; risk assessment; sediment quality; sediments; statistical analysis ER - TY - JOUR T1 - Stage- and Species-Specific Developmental Toxicity of All-Trans Retinoic Acid in Four Native North American Ranids and Xenopus laevis AN - 18154780; 5136386 AB - Within the last decade, there have been increasing reports of malformed amphibians across North America. Recently, it has been suggested that hind-limb malformations are a consequence of xenobiotic disruption of developmental pathways regulated by retinoids. To assess the validity of this hypothesis, the developmental toxicity of all-trans retinoic acid (RA) was examined in Xenopus laevis and four North American anurans, at several life stages. To determine the effects of RA on embryogenesis, mid-blastula stage embryos were exposed to 0, 6.25, 12.5, 25, or 50 ng RA/ml for 24 h. To evaluate the effects of RA on hind-limb development, early- and mid-limb bud stage tadpoles were exposed to RA concentrations of 0, 250, 500, 750, 1000, or 1250 ng RA/ml for 24 h. Mid-blastula RA exposure resulted in a concentration-dependent increase in dysmorphogenesis and mortality in the three species examined (R. clamitans, R. septentrionalis and X. laevis). RA exposure at stage 51 in X. laevis and stage 28 in R. sylvatica resulted in concentration-dependent increases in reductions and deletions of the hind limb. However, RA was ineffective at inducing hind-limb abnormalities in stages 26 and 28 of R. pipiens, stage 28 in R. clamitans, or stage 48 in X. laevis tadpoles. These results indicate that mid-blastula stage embryos are more sensitive to RA-induced dysmorphogenesis and mortality than limb-bud stage tadpoles. The significance of these findings is discussed in the context of the possible occurrence of retinoid mimics in the environment. JF - Toxicological Sciences AU - Degitz, S J AU - Kosian, P A AU - Makynen, E A AU - Jensen, K M AU - Ankley, G T AD - U.S. Environmental Protection Agency, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN 55804, USA Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 264 EP - 274 VL - 57 IS - 2 SN - 1096-6080, 1096-6080 KW - African clawed frog KW - True frogs KW - all-trans-retinoic acid KW - ASFA 3: Aquatic Pollution & Environmental Quality; Toxicology Abstracts KW - Xenopus laevis KW - Retinoic acid KW - Rana KW - Teratogenicity KW - Embryos KW - Toxicity KW - Water pollution KW - X 24240:Miscellaneous KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18154780?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Stage-+and+Species-Specific+Developmental+Toxicity+of+All-Trans+Retinoic+Acid+in+Four+Native+North+American+Ranids+and+Xenopus+laevis&rft.au=Degitz%2C+S+J%3BKosian%2C+P+A%3BMakynen%2C+E+A%3BJensen%2C+K+M%3BAnkley%2C+G+T&rft.aulast=Degitz&rft.aufirst=S&rft.date=2000-10-01&rft.volume=57&rft.issue=2&rft.spage=264&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Embryos; Toxicity; Water pollution; Retinoic acid; Teratogenicity; Xenopus laevis; Rana ER - TY - JOUR T1 - Isotopic Evidence for Naturally Occurring Sulfate Pollution of Ponds in the Kankakee River Basin, Illinois-Indiana AN - 18068710; 4872456 AB - Ecosystem restoration surveys across the Kankakee River Basin indicate that ponds in riparian zones contain elevated sulfate concentrations. The sources of high sulfate in many ponds were investigated by sampling ground waters, precipitation, and applied fertilizers in the Kankakee and Iroquois subwatersheds of the basin. The super(34)S sub(SO4) and super(18)O sub(SO4) analyses discriminated among possible regional anthropogenic and natural sources. Some sulfate-bearing fertilizers may have contributed to elevated SO super(2) sub(4) super(-) in ponds but there is isotopic evidence suggesting that pyritic glaciofluvial sediments in the surficial aquifer may be the source of larger SO super(2) sub(4) super(-) concentrations in ponds. An isotopic analysis of one SO super(2) sub(4) super(-)-H sub(2)O system in a riparian zone revealed that FeS sub(2) oxidation reactions are possible processes leading to local sulfate pollution in riverine ponds. JF - Journal of Environmental Quality AU - Sidle, W C AU - Roose, D L AU - Shanklin AD - United States Environmental Protection Agency, Isotope Hydrology Lab., 5995 Center Hill Ave., Cincinnati OH 45224, USA, sidle.william@epa.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 1594 EP - 1603 VL - 29 IS - 5 SN - 0047-2425, 0047-2425 KW - USA, Illinois, Kankakee R. KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Sulfates KW - Water Pollution KW - Sulphur isotopes KW - Isotopes KW - Precipitation (Atmospheric) KW - Water Pollution Sources KW - USA, Illinois, Kankakee R. basin KW - Basins KW - Ponds KW - Sulphates KW - Fertilizers KW - Riparian environments KW - Freshwater pollution KW - Geochemistry KW - Precipitation KW - Isotope Studies KW - Pollution surveys KW - Groundwater (see also Aquifers) KW - USA, Indiana, Kankakee R. basin KW - Groundwater KW - Pollution (Water) KW - Q5 08503:Characteristics, behavior and fate KW - SW 0880:Chemical processes KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18068710?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Isotopic+Evidence+for+Naturally+Occurring+Sulfate+Pollution+of+Ponds+in+the+Kankakee+River+Basin%2C+Illinois-Indiana&rft.au=Sidle%2C+W+C%3BRoose%2C+D+L%3BShanklin&rft.aulast=Sidle&rft.aufirst=W&rft.date=2000-10-01&rft.volume=29&rft.issue=5&rft.spage=1594&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sulphur isotopes; Pollution surveys; Sulphates; Sulfates; Isotopes; Fertilizers; Riparian environments; Basins; Ponds; Freshwater pollution; Precipitation (Atmospheric); Geochemistry; Groundwater (see also Aquifers); Pollution (Water); Water Pollution; Water Pollution Sources; Isotope Studies; Precipitation; Groundwater; USA, Illinois, Kankakee R. basin; USA, Indiana, Kankakee R. basin ER - TY - JOUR T1 - Impact of stagnation time on metal dissolution from plumbing materials in drinking water AN - 17766660; 4823002 AB - Studies were conducted to evaluate the impact of stagnation period on the metal dissolution from plumbing materials including lead, copper and brass. Experimental data showed that metal levels increased exponentially with time, with the sharpest increase occurring over the first 20-24 h. Metal levels may continue to increase following well beyond 24 h of stagnation. Copper levels increased until dissolved oxygen fell below 1 mg l super(-1) after which copper levels fell. Results showed that stagnation behaviour is complex in nature, difficult to predict and dependent on water chemistry. Experimental data fit well to a radial diffusion model when a diffusion barrier term is considered. JF - Aqua - Journal of Water Supply: Research and Technology AU - Lytle, DA AU - Schock, M R AD - US Environmental Protection Agency, NRMRL, WSWRD, TTEB, 26 W. Martin Luther King Dr., Cincinnati, OH 45268, USA, lytle.darren@epa.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 243 EP - 258 VL - 49 IS - 5 SN - 0003-7214, 0003-7214 KW - Water Resources Abstracts; Aqualine Abstracts KW - Water supplies (Potable) KW - Copper (see also Cuprosolvency, Heavy metals) KW - Heavy metals KW - Dissolved Oxygen KW - Copper KW - Heavy Metals KW - Lead KW - Drinking Water KW - Waterworks KW - Water treatment KW - Water Treatment Facilities KW - Water Treatment KW - Oxygen (Dissolved) KW - SW 3060:Water treatment and distribution KW - AQ 00004:Water Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17766660?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aqua+-+Journal+of+Water+Supply%3A+Research+and+Technology&rft.atitle=Impact+of+stagnation+time+on+metal+dissolution+from+plumbing+materials+in+drinking+water&rft.au=Lytle%2C+DA%3BSchock%2C+M+R&rft.aulast=Lytle&rft.aufirst=DA&rft.date=2000-10-01&rft.volume=49&rft.issue=5&rft.spage=243&rft.isbn=&rft.btitle=&rft.title=Aqua+-+Journal+of+Water+Supply%3A+Research+and+Technology&rft.issn=00037214&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Water supplies (Potable); Copper (see also Cuprosolvency, Heavy metals); Waterworks; Water treatment; Heavy metals; Oxygen (Dissolved); Lead; Drinking Water; Water Treatment Facilities; Dissolved Oxygen; Water Treatment; Copper; Heavy Metals ER - TY - JOUR T1 - Adrenocorticotropin (ACTH) and corticosterone secretion by perifused pituitary and adrenal glands from rodents exposed to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) AN - 17742972; 4807998 AB - Although in utero maternal stress has been shown to have lasting effects on rodent offspring, fetal effects of chemically-induced alterations of the maternal hypothalamic-pituitary-adrenal axis (HPA) have not been well studied. This study examined the effects of in vivo 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) exposure on pituitary-adrenal function in the male rat, pregnant female rat and pregnant female mouse. The secretion of adrenocorticotropin (ACTH) and corticosterone (CORT) in pituitary and adrenal glands, respectively, was assessed in ex vivo perifusion cultures. Male and pregnant female (gestation day 8) Sprague-Dawley rats were gavaged once with 10 mu g/kg TCDD, pregnant female mice once with 24 mu g/kg TCDD, and euthanized 10 days later. Hemi-pituitary (rat) or whole anterior pituitaries (mice) and right adrenal glands from the same animal were quartered, perifused under baseline and stimulated conditions. In both males and pregnant females, TCDD did not affect corticotropin releasing hormone (CRH)-stimulated ACTH secretion. Neither total pituitary ACTH nor plasma ACTH was altered in either sex or species by TCDD treatment. ACTH-stimulated CORT secretion was not affected by TCDD in either sex or species, and adrenal tissue and plasma CORT levels were unchanged in males and pregnant females by TCDD. However, the plasma ACTH:CORT ratio was decreased about 46% in male rats treated with TCDD. Plasma CORT levels were 23-fold higher and plasma ACTH levels were 1.5-fold higher in pregnant females than in male rats. In male versus female rats, adrenal CORT and anterior pituitary ACTH tissue levels were about 7.5- and 1.75-fold higher and ACTH, respectively. Female mouse adrenal tissue CORT was about 4-fold greater than female rat. The reduced plasma ACTH:CORT ratio in the male rat suggests that TCDD disturbs HPA function. Exposure of male rat to a 5-fold higher dose in earlier studies clearly demonstrated effects of TCDD on male rat HPA. The present study identified substantial HPA performance differences between male and pregnant female rats. The failure to detect a response to TCDD in pregnant female rat and mouse could be a function of both TCDD dose and the high level of secretion of both ACTH and CORT in pregnant animals. For the rat or mouse, a single exposure to TCDD during pregnancy does not appear sufficient to induce maternally-mediated developmental, reproductive and behavioral toxicity via the HPA axis. JF - Toxicology AU - Pitt, JA AU - Buckalew, A R AU - House, DE AU - Abbott, B D AD - Developmental Biology Branch, Reproductive Toxicology Division, NHEERL, US EPA, 2525 NC Highway 54, Research Triangle Park, NC 27711, USA, abbott.barbara@epa.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 25 EP - 35 VL - 151 IS - 1-3 SN - 0300-483X, 0300-483X KW - adrenocorticotropin KW - mice KW - rats KW - Toxicology Abstracts KW - Adrenal glands KW - Corticosterone KW - Pituitary KW - TCDD KW - Adrenocorticotropic hormone KW - X 24155:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17742972?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology&rft.atitle=Adrenocorticotropin+%28ACTH%29+and+corticosterone+secretion+by+perifused+pituitary+and+adrenal+glands+from+rodents+exposed+to+2%2C3%2C7%2C8-tetrachlorodibenzo-p-dioxin+%28TCDD%29&rft.au=Pitt%2C+JA%3BBuckalew%2C+A+R%3BHouse%2C+DE%3BAbbott%2C+B+D&rft.aulast=Pitt&rft.aufirst=JA&rft.date=2000-10-01&rft.volume=151&rft.issue=1-3&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Toxicology&rft.issn=0300483X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Adrenocorticotropic hormone; Corticosterone; TCDD; Pituitary; Adrenal glands ER - TY - JOUR T1 - Interindividual Variance of Cytochrome P450 Forms in Human Hepatic Microsomes: Correlation of Individual Forms with Xenobiotic Metabolism and Implications in Risk Assessment AN - 17735927; 4796044 AB - Differences in biotransformation activities may alter the bioavailability or efficacy of drugs, provide protection from certain xenobiotic and environmental agents, or increase toxicity of others. Cytochrome P450 (CYP450) enzymes are responsible for the majority of oxidation reactions of drugs and other xenobiotics and differences in their expression may directly produce interindividual differences in susceptibility to compounds whose toxicity is modulated by these enzymes. To rapidly quantify CYP450 forms in human hepatic microsomes, we developed, and applied, an ELISA to 40 samples of microsomes from adult human organ donors. The procedure was reliable and the results were reproducible within normal limits. Protein content for CYP1A, CYP2E1, and CYP3A positively correlated with suitable marker activities. CYP1A, CYP2B, CYP2C6, CYP2C11, CYP2E1, and CYP3A protein content demonstrated 36-, 13-, 11-, 2-, 12-, and 22-fold differences between the highest and lowest samples and the values were normally distributed. Of the forms examined, CYP3A was expressed in the highest amount and it was the only form whose content was correlated with total CYP450 content. Content of other forms was independent of total CYP450. We further determined the contribution of specific forms to the biotransformation of trichloroethylene as a model substrate. CYP2E1 was strongly correlated with chloral hydrate formation from trichloroethylene; CYP2B displayed the strongest correlation with trichloroethanol formation. These data describing the expression and distribution of these forms in human microsomes can be used to extrapolate in vitro derived metabolic rates for toxicologically important reactions, when form selectivity and specific activity are known. This approach may be applied to refine estimates of human interindividual differences in susceptibility for application in human health risk assessment. JF - Regulatory Toxicology and Pharmacology AU - Snawder, JE AU - Lipscomb, J C AD - U.S. Environmental Protection Agency, National Center for Environmental Assessment, MD-190, 26 W. Martin Luther King Drive, Cincinnati, OH 45268., Lipscomb.John@EPA.GOV Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 200 EP - 209 PB - Academic Press VL - 32 IS - 2 SN - 0273-2300, 0273-2300 KW - Toxicology Abstracts KW - Risk assessment KW - Microsomes KW - Liver KW - Proteins KW - Cytochrome P450 KW - Xenobiotics KW - X 24240:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17735927?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Regulatory+Toxicology+and+Pharmacology&rft.atitle=Interindividual+Variance+of+Cytochrome+P450+Forms+in+Human+Hepatic+Microsomes%3A+Correlation+of+Individual+Forms+with+Xenobiotic+Metabolism+and+Implications+in+Risk+Assessment&rft.au=Snawder%2C+JE%3BLipscomb%2C+J+C&rft.aulast=Snawder&rft.aufirst=JE&rft.date=2000-10-01&rft.volume=32&rft.issue=2&rft.spage=200&rft.isbn=&rft.btitle=&rft.title=Regulatory+Toxicology+and+Pharmacology&rft.issn=02732300&rft_id=info:doi/10.1006%2Frtph.2000.1424 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Liver; Microsomes; Xenobiotics; Cytochrome P450; Proteins; Risk assessment DO - http://dx.doi.org/10.1006/rtph.2000.1424 ER - TY - JOUR T1 - Seasonal variations of size-fractionated phytoplankton along the salinity gradient in the York River estuary, Virginia (USA) AN - 17731664; 4789486 AB - The dynamics of phytoplankton size structure were investigated in the freshwater, transitional and estuarine zones of the York River over an annual cycle. The contribution of large cells (microplankton, >20 mu m) to total concentrations of chlorophyll a increased downstream during winter, whereas that of small cells (nanoplankton, 3-20 mu m; picoplankton, <3 mu m) increased downstream during summer. In the freshwater region, the contribution of micro phytoplankton to total concentrations of chlorophyll a was significant during warm seasons (spring and summer) but not during colder seasons (winter), whereas the contribution of small-sized cells (especially picoplankton) increased during cold seasons. Temperature, light and high flushing rate appear to control phytoplankton community structure in the freshwater region. In the transitional region, nanosized cells dominated the phytoplankton population throughout all seasons except during the spring bloom (April) when the chlorophyll a concentration of micro phytoplankton increased. Size structure in the transitional region is most likely regulated by light availability. In the mesohaline region, nano- and pico-sized cells dominated the phytoplankton population during the summer bloom, whereas micro-sized cells dominated during the winter bloom. Factors controlling phytoplankton community size structure in the mesohaline zone may be riverine nitrogen input, temperature and/or advective transport from up-river. Based on these results, the spatial and seasonal variations in size structure of phytoplankton observed on the estuarine scale may be determined both by the different preferences for nutrients and by different light requirements of micro-, nano- and picoplankton. The results suggest that analyses of phytoplankton size structure are necessary to better understand controls on phytoplankton dynamics and to better manage water quality in river-dominated, estuarine systems. JF - Journal of Plankton Research AU - Sin, Y AU - Wetzel, R L AU - Anderson, I C AD - United States Environmental Protection Agency, 2111 S.E. Marine Science Drive, Newport, Oregon 97365, USA Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 1945 EP - 1960 VL - 22 IS - 10 SN - 0142-7873, 0142-7873 KW - USA, Virginia KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Ecology Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Estuarine organisms KW - Ecological distribution KW - Picoplankton KW - Phytoplankton KW - Salinity gradients KW - Freshwater KW - Water salinity KW - Salinity effects KW - Ecosystem management KW - ANW, USA, Virginia, York Estuary KW - Seasonal variations KW - Algae KW - Temperature effects KW - Estuaries KW - River discharge KW - Brackish KW - Gradients KW - USA, Virginia, York R. KW - Light effects KW - Nannoplankton KW - Flushing KW - Nutrients (mineral) KW - Size distribution KW - K 03009:Algae KW - O 1070:Ecology/Community Studies KW - Q1 08221:General KW - Q1 08461:Plankton KW - O 1010:Viruses, Bacteria, Protists, Fungi and Plants KW - D 04627:Algae/lichens UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17731664?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Plankton+Research&rft.atitle=Seasonal+variations+of+size-fractionated+phytoplankton+along+the+salinity+gradient+in+the+York+River+estuary%2C+Virginia+%28USA%29&rft.au=Sin%2C+Y%3BWetzel%2C+R+L%3BAnderson%2C+I+C&rft.aulast=Sin&rft.aufirst=Y&rft.date=2000-10-01&rft.volume=22&rft.issue=10&rft.spage=1945&rft.isbn=&rft.btitle=&rft.title=Journal+of+Plankton+Research&rft.issn=01427873&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Temperature effects; Estuarine organisms; Ecological distribution; Picoplankton; River discharge; Phytoplankton; Salinity gradients; Nannoplankton; Light effects; Ecosystem management; Flushing; Nutrients (mineral); Seasonal variations; Size distribution; Water salinity; Salinity effects; Estuaries; Gradients; Algae; ANW, USA, Virginia, York Estuary; USA, Virginia, York R.; Freshwater; Brackish ER - TY - JOUR T1 - Predicting ready biodegradability in the Japanese ministry of international trade and industry test AN - 17726293; 4791674 AB - Two new predictive models for assessing a chemical's biodegradability in the Japanese Ministry of International Trade and Industry (MITI) ready biodegradation test have been developed. The new methods use an approach similar to that in the existing BIOWlN copyright program, in which the probability of rapid biodegradation is estimated by means of multiple linear or nonlinear regression against counts of 36 chemical substructures (molecular fragments) plus molecular weight (mol wt). The data set used to develop the new models consisted of results (pass/no pass) from the MITI test for 884 discrete organic chemicals. This data set was first divided into randomly selected training and validation sets, and new coefficients were derived for the training set using the BIOWlN fragment library and mol wt as independent ariables. Based on these results, the fragment library was then modified by deleting some fragments and adding or refining others, and the new set of independent variables (42 substructures and mol wt) was fit to the MITI data. The resulting linear and nonlinear regression models accurately classified 81% of the chemicals in an independent validation set. Like the established BIOWIN models, the MITI models are intended for use in chemical screening and in setting priorities for further review. JF - Environmental Toxicology and Chemistry AU - Tunkel, J AU - Howard, PH AU - Boethling, R S AU - Stiteler, W AU - Loonen, H AD - U.S. Environmental Protection Agency, Office of Pollution Prevention and Toxics, 401 M Street SW, Washington, DC 20460, USA, boethling.bob@epa.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 2478 EP - 2485 VL - 19 IS - 10 SN - 0730-7268, 0730-7268 KW - Japan KW - Toxicology Abstracts KW - Regression analysis KW - Xenobiotics KW - Biodegradability KW - Models KW - X 24240:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17726293?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Predicting+ready+biodegradability+in+the+Japanese+ministry+of+international+trade+and+industry+test&rft.au=Tunkel%2C+J%3BHoward%2C+PH%3BBoethling%2C+R+S%3BStiteler%2C+W%3BLoonen%2C+H&rft.aulast=Tunkel&rft.aufirst=J&rft.date=2000-10-01&rft.volume=19&rft.issue=10&rft.spage=2478&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Xenobiotics; Biodegradability; Models; Regression analysis ER - TY - JOUR T1 - Phytoplankton pigments at the Weddell-Scotia confluence during the 1993 austral spring AN - 17718856; 4789510 AB - During a 1993 austral spring cruise, a complex biomass was encountered near South Orkney Island that ranged from a low-biomass, Chaetoceros tortissimus assemblage south of the front towards the ice edge, to a high-biomass, Thalassiosira gravida-dominated assemblage at the northern edge. The maximum levels of chlorophyll (Chl) a (up to 6 mg m super(-3)) were higher than those observed in previous high-performance liquid chromatography-based studies of pigments in the pelagic Southern Ocean. The non-photosynthetic pigment chlorophyllide a comprised up to 75% of the chlorophyllous pigments in the southern assemblage, but < 5% in the northern assemblage. Concentrations of the xanthophylls diadinoxanthin (DD) and diatoxanthin (DT), used as indicators of mean irradiance, indicated low-light-adapted populations. Low-light DD + DT/Chl a ratios in surface waters indicated that vertical mixing limited phytoplankton residence time in the near-surface layer, and thus limited exposure to maximum irradiance. Deck incubations of natural assemblages indicated that the dark epoxidation reaction (i.e. the return of DT to DD) was a two-step reaction with the initial rate being more rapid (t super(1/2) = 9.5 min) than the second (t super(1/2) = 55 min). Fucoxanthin, a major diatom pigment, was more stable chemically in the water column than Chl a, and the vertical profiles of fucoxanthin followed those of chlorophyllide a in some cases. The formation and apparent stability of chlorophyllide a and fucoxanthin are important considerations when estimating photosynthetically active biomass over large regions of the ocean. JF - Journal of Plankton Research AU - Sigleo, A C AU - Neale, P J AU - Spector, A M AD - US Environmental Protection Agency, Western Ecology Division, 2111 SE Marine Science Drive, Newport, OR 97365-5260, USA Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 1989 EP - 2006 VL - 22 IS - 10 SN - 0142-7873, 0142-7873 KW - Southern Ocean KW - spring KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Ecology Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Marine KW - Chlorophylls KW - Ice edge KW - Phytoplankton KW - Primary production KW - Chaetoceros tortissimus KW - PSW, Antarctic Ocean, Weddell-Scotia Confluence KW - Thalassiosira gravida KW - Community composition KW - PSW, Antarctica, South Orkney Is. KW - Pigments KW - Photosynthetic pigments KW - Oceanic fronts KW - K 03009:Algae KW - O 1070:Ecology/Community Studies KW - Q1 08461:Plankton KW - O 1010:Viruses, Bacteria, Protists, Fungi and Plants KW - D 04330:Marine KW - Q1 08222:Geographical distribution KW - K 03044:Algae UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17718856?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Plankton+Research&rft.atitle=Phytoplankton+pigments+at+the+Weddell-Scotia+confluence+during+the+1993+austral+spring&rft.au=Sigleo%2C+A+C%3BNeale%2C+P+J%3BSpector%2C+A+M&rft.aulast=Sigleo&rft.aufirst=A&rft.date=2000-10-01&rft.volume=22&rft.issue=10&rft.spage=1989&rft.isbn=&rft.btitle=&rft.title=Journal+of+Plankton+Research&rft.issn=01427873&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Chlorophylls; Community composition; Ice edge; Pigments; Photosynthetic pigments; Phytoplankton; Oceanic fronts; Primary production; Thalassiosira gravida; Chaetoceros tortissimus; PSW, Antarctic Ocean, Weddell-Scotia Confluence; PSW, Antarctica, South Orkney Is.; Marine ER - TY - JOUR T1 - Biogeography of benthic macroinvertebrates in estuaries along the Gulf of Mexico and western Atlantic coasts AN - 17718311; 4794554 AB - The community composition of benthic macroinvertebrates from 870 estuarine sites was examined in order to either confirm or challenge established boundaries of biogeographical provinces along the Gulf of Mexico and western Atlantic coasts of the United States. The objective was two-fold: (1) to demarcate boundaries that separate dissimilar fauna in the Gulf of Mexico, and (2) to compare the Gulf of Mexico biogeographically with other well-known provinces. We segmented the coastline into grid cells with dimensions of 1 degree latitude and 2-4 degree longitude. Using the descriptive techniques of cluster analysis and nonmetric multidimensional scaling, we determined the similarities in benthic community composition between sites within grid cells in the Gulf of Mexico and compared the biotic ordinations to natural habitat characteristics such as salinity, sediment type, and depth. We then evaluated the overall community composition within each grid cell in the Gulf of Mexico and established whether or not similarities existed between adjacent grid cells. In this manner, we confirmed that an east-west gradient existed in estuarine benthic community composition along the Gulf of Mexico coast. This information was combined with our previous work in the western Atlantic coast to discern biogeographical provinces. Based on cluster analyses and an analysis of endemic benthic species the following provinces are proposed: (1) the Virginian province, from Cape Cod, Massachusetts to Wilmington, North Carolina, (2) the Gulf of Mexico, from Rio Grande, Texas to Cape Romano, Florida, and (3) south Florida, south of latitude 26 degree N. The region encompassing South Carolina, Georgia and northern Florida represents a transitional area between temperate and tropical provinces. JF - Hydrobiologia AU - Engle, V D AU - Summers, J K AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Gulf Ecology Division, 1 Sabine Island Drive, Gulf Breeze, FL 32561, U.S.A., engle.virginia@epa.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 17 EP - 33 PB - Kluwer Academic Publishers VL - 436 IS - 1-3 SN - 0018-8158, 0018-8158 KW - USA KW - Oceanic Abstracts; Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Estuarine organisms KW - Biogeography KW - Estuaries KW - Brackish KW - Macroinvertebrates KW - Faunal provinces KW - ASW, USA KW - ASW, USA, Mexico Gulf KW - Habitats KW - Community composition KW - Tropical environment KW - Statistical Analysis KW - Invertebrata KW - Zoobenthos KW - Temperate zones KW - Benthos KW - O 1080:Multi-disciplinary Studies KW - SW 0890:Estuaries KW - D 04320:Brackishwater KW - Q1 08383:Biogeography and biogeographic regions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17718311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrobiologia&rft.atitle=Biogeography+of+benthic+macroinvertebrates+in+estuaries+along+the+Gulf+of+Mexico+and+western+Atlantic+coasts&rft.au=Engle%2C+V+D%3BSummers%2C+J+K&rft.aulast=Engle&rft.aufirst=V&rft.date=2000-10-01&rft.volume=436&rft.issue=1-3&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Hydrobiologia&rft.issn=00188158&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Estuarine organisms; Community composition; Biogeography; Tropical environment; Zoobenthos; Temperate zones; Faunal provinces; Estuaries; Habitats; Statistical Analysis; Macroinvertebrates; Benthos; Invertebrata; ASW, USA, Mexico Gulf; ASW, USA; Brackish ER - TY - JOUR T1 - Future Inequality in CO2 Emissions and the Impact of Abatement Proposals AN - 17686084; 4769692 AB - This paper analyzes future carbon emissions inequality using a group decomposition of the Gini index. Business-as-usual projections to the year 2100 for 135 countries show inequality in per capita emissions declines slowly. Next, the impact on emissions levels and inequality of the Kyoto Protocol and other abatement proposals for Annex II countries in 2010 are measured, with a focus on the gap-narrowing and reranking effects. Substantial reranking of per capita emissions between Annex II and non-Annex II countries will not occur unless the former reduce their emissions by at least 50% (versus 1990 levels) and the latter continue growing unabated. JF - Environmental & Resource Economics AU - Heil, M T AU - Wodon, Q T AD - U.S. Environmental Protection Agency, 1200 Pennsylvania Avenue, NW (6609J), Washington, DC 20460, USA, heil.mark@epa.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 163 EP - 181 PB - Kluwer Academic Publishers VL - 17 IS - 2 SN - 0924-6460, 0924-6460 KW - Kyoto Protocol KW - Pollution Abstracts KW - Environmental economics KW - Emission control KW - Carbon dioxide KW - International agreements KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17686084?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+%26+Resource+Economics&rft.atitle=Future+Inequality+in+CO2+Emissions+and+the+Impact+of+Abatement+Proposals&rft.au=Heil%2C+M+T%3BWodon%2C+Q+T&rft.aulast=Heil&rft.aufirst=M&rft.date=2000-10-01&rft.volume=17&rft.issue=2&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Environmental+%26+Resource+Economics&rft.issn=09246460&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Carbon dioxide; Emission control; Environmental economics; International agreements ER - TY - JOUR T1 - Development and Preliminary Evaluation of a Particulate Matter Emission Factor Model for European Motor Vehicles AN - 17646321; 4791285 AB - Although modeling of gaseous emissions from motor vehicles is now quite advanced, prediction of particulate emissions is still at an unsophisticated stage. Emission factors for gasoline vehicles are not reliably available, since gasoline vehicles are not included in the European Union (EU) emission test procedure. Regarding diesel vehicles, emission factors are available for different driving cycles but give little information about change of emissions with speed or engine load. We have developed size-specific speed-dependent emission factors for gasoline and diesel vehicles. Other vehicle-generated emission factors are also considered and the empirical equation for re-entrained road dust is modified to include humidity effects. A methodology is proposed to calculate modal (accelerating, cruising, or idling) emission factors. A particulate matter emission factor model (PMFAC), which incorporates virtually all the available information on particulate emissions for European motor vehicles, has been developed. A preliminary evaluation of PMFAC with an available dispersion model to predict the airborne concentration in the urban environment is presented. The trial was on the A6 trunk road where it passes through Loughborough, a medium-size town in the English East Midlands. This evaluation for TSP and PM sub(10) was carried out for a range of traffic fleet compositions, speeds, and meteorological conditions. Given the limited basis of the evaluation, encouraging agreement was shown between predicted and measured concentrations. JF - Journal of the Air & Waste Management Association AU - Singh, R B AU - Colls, J J AD - National Exposure Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 1805 EP - 1817 VL - 50 IS - 10 SN - 1047-3289, 1047-3289 KW - European Union KW - Pollution Abstracts KW - Air pollution forecasting KW - Combustion products KW - Motor vehicles KW - Exhaust emissions KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17646321?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association&rft.atitle=Development+and+Preliminary+Evaluation+of+a+Particulate+Matter+Emission+Factor+Model+for+European+Motor+Vehicles&rft.au=Singh%2C+R+B%3BColls%2C+J+J&rft.aulast=Singh&rft.aufirst=R&rft.date=2000-10-01&rft.volume=50&rft.issue=10&rft.spage=1805&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association&rft.issn=10473289&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Motor vehicles; Exhaust emissions; Combustion products; Air pollution forecasting ER - TY - JOUR T1 - Identification of New Drinking Water Disinfection by - Products from Ozone, Chlorine Dioxide, Chloramine, and Chlorine AN - 1671495998; 13635462 AB - Many drinking water treatment plants are currently using alternative disinfectants to treat drinking water, with ozone, chlorine dioxide, and chloramine being the most popular. However, compared to chlorine, which has been much more widely studied, there is little information about the disinfection by-products (DBPs) that these alternative disinfectants produce. Thus, it is not known if the DBPs from alternative disinfectants are safer or more hazardous than those formed by chlorine. To answer this question, we have set out to comprehensively identify DBPs formed by these alternative disinfectants, as well as by chlorine. The results presented here represent a compilation of the last 8 years of our research in identifying new DBPs from ozone, chlorine dioxide, chloramine, and chlorine. We also include results from recent studies of Israel drinking water disinfected with both chlorine dioxide and chloramine. Over 200 DBPs were identified, many of which have never been reported. In comparing by-products formed by the different disinfectants, ozone, chlorine dioxide, and chloramine formed fewer halogenated DBPs than chlorine. JF - Water, Air, & Soil Pollution AU - Richardson, S D AU - Thruston, AD AU - Caughran, T V AU - Chen, PH AU - Collette, T W AU - Schenck, K M AU - Lykins, B W AU - Rav-Acha, C AU - Glezer, V AD - National Exposure Research Laboratory, U.S. Environmental Protection Agency, 960 College Station Rd., Athens, GA, 30605, USA Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 95 EP - 102 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 123 IS - 1-4 SN - 0049-6979, 0049-6979 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE) KW - Soil pollution KW - Chlorine dioxide KW - Byproducts KW - Hazardous KW - Halogenated KW - Chlorine KW - Alternating current KW - Drinking water KW - Ozone UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1671495998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water%2C+Air%2C+%26+Soil+Pollution&rft.atitle=Identification+of+New+Drinking+Water+Disinfection+by+-+Products+from+Ozone%2C+Chlorine+Dioxide%2C+Chloramine%2C+and+Chlorine&rft.au=Richardson%2C+S+D%3BThruston%2C+AD%3BCaughran%2C+T+V%3BChen%2C+PH%3BCollette%2C+T+W%3BSchenck%2C+K+M%3BLykins%2C+B+W%3BRav-Acha%2C+C%3BGlezer%2C+V&rft.aulast=Richardson&rft.aufirst=S&rft.date=2000-10-01&rft.volume=123&rft.issue=1-4&rft.spage=95&rft.isbn=&rft.btitle=&rft.title=Water%2C+Air%2C+%26+Soil+Pollution&rft.issn=00496979&rft_id=info:doi/10.1023%2FA%3A1005265509813 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1023/A:1005265509813 ER - TY - JOUR T1 - A regional approach to source water assessment and protection in a susceptible karst region in northwest Ohio AN - 1008819745; 2012-039331 JF - Midwest Ground Water Conference AU - Raymond, Heather AU - Heider, Patrick AU - Woodall, Kristin AU - Anonymous Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 73 PB - [publisher varies], [location varies] VL - 45 KW - United States KW - protection KW - water supply KW - dye tracers KW - data processing KW - pollution KW - potentiometric surface KW - karst KW - turbulence KW - ground water KW - models KW - fractures KW - sinkholes KW - Seneca County Ohio KW - data bases KW - springs KW - Erie County Ohio KW - risk assessment KW - discharge KW - solution features KW - Sandusky County Ohio KW - Huron County Ohio KW - Ohio KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819745?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Midwest+Ground+Water+Conference&rft.atitle=A+regional+approach+to+source+water+assessment+and+protection+in+a+susceptible+karst+region+in+northwest+Ohio&rft.au=Raymond%2C+Heather%3BHeider%2C+Patrick%3BWoodall%2C+Kristin%3BAnonymous&rft.aulast=Raymond&rft.aufirst=Heather&rft.date=2000-10-01&rft.volume=45&rft.issue=&rft.spage=73&rft.isbn=&rft.btitle=&rft.title=Midwest+Ground+Water+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 45th annual Midwest ground water conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - SuppNotes - Sponsoring agencies: Ohio Department of Natural Resources, Division of Water; Ohio Envirnmental Protection Agency, N1 - Last updated - 2012-06-07 N1 - CODEN - #03005 N1 - SubjectsTermNotLitGenreText - data bases; data processing; discharge; dye tracers; Erie County Ohio; fractures; ground water; Huron County Ohio; karst; models; Ohio; pollution; potentiometric surface; protection; risk assessment; Sandusky County Ohio; Seneca County Ohio; sinkholes; solution features; springs; turbulence; United States; water supply ER - TY - JOUR T1 - Occurrence and release of ground water arsenic in public water supply wells in Ohio AN - 1008818523; 2012-039321 JF - Midwest Ground Water Conference AU - Slattery, Michael AU - Kenah, Christopher AU - Slattery, Linda AU - Musser, Kathy AU - Anonymous Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 63 PB - [publisher varies], [location varies] VL - 45 KW - United States KW - water quality KW - government agencies KW - gravel KW - drinking water KW - ground water KW - sediments KW - oxides KW - water pollution KW - geochemistry KW - Eh KW - Ohio KW - sand KW - water supply KW - monitoring KW - clastic sediments KW - oxyhydroxides KW - arsenic KW - U. S. Environmental Protection Agency KW - pollution KW - samples KW - aquifers KW - hydroxides KW - metals KW - water wells KW - public health KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818523?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Midwest+Ground+Water+Conference&rft.atitle=Occurrence+and+release+of+ground+water+arsenic+in+public+water+supply+wells+in+Ohio&rft.au=Slattery%2C+Michael%3BKenah%2C+Christopher%3BSlattery%2C+Linda%3BMusser%2C+Kathy%3BAnonymous&rft.aulast=Slattery&rft.aufirst=Michael&rft.date=2000-10-01&rft.volume=45&rft.issue=&rft.spage=63&rft.isbn=&rft.btitle=&rft.title=Midwest+Ground+Water+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 45th annual Midwest ground water conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - SuppNotes - Sponsoring agencies: Ohio Department of Natural Resources, Division of Water; Ohio Envirnmental Protection Agency, N1 - Last updated - 2012-06-07 N1 - CODEN - #03005 N1 - SubjectsTermNotLitGenreText - aquifers; arsenic; clastic sediments; drinking water; Eh; geochemistry; government agencies; gravel; ground water; hydroxides; metals; monitoring; Ohio; oxides; oxyhydroxides; pollution; public health; samples; sand; sediments; U. S. Environmental Protection Agency; United States; water pollution; water quality; water supply; water wells ER - TY - JOUR T1 - Accounting for surface water influences on VOC plume migrtion in a buried valley aquifer in south-central Ohio AN - 1008818257; 2012-039307 JF - Midwest Ground Water Conference AU - Saines, Steven J AU - Anonymous Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 49 PB - [publisher varies], [location varies] VL - 45 KW - United States KW - solute transport KW - contaminant plumes KW - GFLOW KW - remediation KW - ground water KW - transport KW - Pike County Ohio KW - Scioto River valley KW - pump-and-treat KW - Ohio KW - soils KW - migration KW - monitoring KW - surface water KW - pollution KW - aquifers KW - volatiles KW - organic compounds KW - alluvium aquifers KW - metals KW - volatile organic compounds KW - industrial waste KW - waste disposal KW - water wells KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818257?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Midwest+Ground+Water+Conference&rft.atitle=Accounting+for+surface+water+influences+on+VOC+plume+migrtion+in+a+buried+valley+aquifer+in+south-central+Ohio&rft.au=Saines%2C+Steven+J%3BAnonymous&rft.aulast=Saines&rft.aufirst=Steven&rft.date=2000-10-01&rft.volume=45&rft.issue=&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Midwest+Ground+Water+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 45th annual Midwest ground water conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - SuppNotes - Sponsoring agencies: Ohio Department of Natural Resources, Division of Water; Ohio Envirnmental Protection Agency, N1 - Last updated - 2012-07-19 N1 - CODEN - #03005 N1 - SubjectsTermNotLitGenreText - alluvium aquifers; aquifers; contaminant plumes; GFLOW; ground water; industrial waste; metals; migration; monitoring; Ohio; organic compounds; Pike County Ohio; pollution; pump-and-treat; remediation; Scioto River valley; soils; solute transport; surface water; transport; United States; volatile organic compounds; volatiles; waste disposal; water wells ER - TY - JOUR T1 - Manipulating Ohio EPA's resource characterization database using Geographical Information Systems (GIS) ArcView capabilities to construct ground water flow models and to define hydrogeologic sensitivity sensitivity AN - 1008818229; 2012-039304 JF - Midwest Ground Water Conference AU - Hunt, Kristy AU - Gara, Brian AU - Slattery, Linda AU - Smity, Craig AU - Kenah, Christopher AU - McClish, Dick AU - Raymond, Heather AU - Anonymous Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 46 PB - [publisher varies], [location varies] VL - 45 KW - United States KW - ArcView KW - aquifer vulnerability KW - water supply KW - ArcGIS KW - data processing KW - water management KW - mapping KW - hydrogeology KW - ground water KW - aquifers KW - models KW - geographic information systems KW - data bases KW - hydrodynamics KW - risk assessment KW - information systems KW - water wells KW - Ohio KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818229?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Midwest+Ground+Water+Conference&rft.atitle=Manipulating+Ohio+EPA%27s+resource+characterization+database+using+Geographical+Information+Systems+%28GIS%29+ArcView+capabilities+to+construct+ground+water+flow+models+and+to+define+hydrogeologic+sensitivity+sensitivity&rft.au=Hunt%2C+Kristy%3BGara%2C+Brian%3BSlattery%2C+Linda%3BSmity%2C+Craig%3BKenah%2C+Christopher%3BMcClish%2C+Dick%3BRaymond%2C+Heather%3BAnonymous&rft.aulast=Hunt&rft.aufirst=Kristy&rft.date=2000-10-01&rft.volume=45&rft.issue=&rft.spage=46&rft.isbn=&rft.btitle=&rft.title=Midwest+Ground+Water+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 45th annual Midwest ground water conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - SuppNotes - Sponsoring agencies: Ohio Department of Natural Resources, Division of Water; Ohio Envirnmental Protection Agency, N1 - Last updated - 2012-06-07 N1 - CODEN - #03005 N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; ArcGIS; ArcView; data bases; data processing; geographic information systems; ground water; hydrodynamics; hydrogeology; information systems; mapping; models; Ohio; risk assessment; United States; water management; water supply; water wells ER - TY - JOUR T1 - Arc view customization; using AVENUE script programming to develop tools for SWAP assessments AN - 1008818220; 2012-039303 JF - Midwest Ground Water Conference AU - Gara, Brian AU - McClish, Dick AU - Hanover, Rob AU - White, D AU - Anonymous Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 45 PB - [publisher varies], [location varies] VL - 45 KW - protection KW - ArcView KW - water supply KW - ArcGIS KW - data processing KW - drinking water KW - ground water KW - models KW - computer programs KW - geographic information systems KW - data bases KW - information systems KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Midwest+Ground+Water+Conference&rft.atitle=Arc+view+customization%3B+using+AVENUE+script+programming+to+develop+tools+for+SWAP+assessments&rft.au=Gara%2C+Brian%3BMcClish%2C+Dick%3BHanover%2C+Rob%3BWhite%2C+D%3BAnonymous&rft.aulast=Gara&rft.aufirst=Brian&rft.date=2000-10-01&rft.volume=45&rft.issue=&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Midwest+Ground+Water+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 45th annual Midwest ground water conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - SuppNotes - Sponsoring agencies: Ohio Department of Natural Resources, Division of Water; Ohio Envirnmental Protection Agency, N1 - Last updated - 2012-06-07 N1 - CODEN - #03005 N1 - SubjectsTermNotLitGenreText - ArcGIS; ArcView; computer programs; data bases; data processing; drinking water; geographic information systems; ground water; information systems; models; protection; water supply ER - TY - JOUR T1 - GIS design for arc spatial data engine and the source water assessment and protection program AN - 1008818209; 2012-039302 JF - Midwest Ground Water Conference AU - McClish, Dick AU - Gara, Brian AU - Hanover, Rob AU - Anonymous Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 44 PB - [publisher varies], [location varies] VL - 45 KW - United States KW - protection KW - ArcView KW - water quality KW - water supply KW - spatial data KW - ArcGIS KW - data processing KW - mapping KW - ground water KW - aquifers KW - computer programs KW - geographic information systems KW - ArcSDE KW - information systems KW - water resources KW - Ohio KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Midwest+Ground+Water+Conference&rft.atitle=GIS+design+for+arc+spatial+data+engine+and+the+source+water+assessment+and+protection+program&rft.au=McClish%2C+Dick%3BGara%2C+Brian%3BHanover%2C+Rob%3BAnonymous&rft.aulast=McClish&rft.aufirst=Dick&rft.date=2000-10-01&rft.volume=45&rft.issue=&rft.spage=44&rft.isbn=&rft.btitle=&rft.title=Midwest+Ground+Water+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 45th annual Midwest ground water conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - SuppNotes - Sponsoring agencies: Ohio Department of Natural Resources, Division of Water; Ohio Envirnmental Protection Agency, N1 - Last updated - 2012-06-07 N1 - CODEN - #03005 N1 - SubjectsTermNotLitGenreText - aquifers; ArcGIS; ArcSDE; ArcView; computer programs; data processing; geographic information systems; ground water; information systems; mapping; Ohio; protection; spatial data; United States; water quality; water resources; water supply ER - TY - JOUR T1 - Susceptibility analyses of ground water public water systems under Ohio's source water assessment and protection program AN - 1008817303; 2012-039314 JF - Midwest Ground Water Conference AU - Slattery, Linda AU - Kenah, Christopher AU - Anonymous Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 56 PB - [publisher varies], [location varies] VL - 45 KW - United States KW - protection KW - water quality KW - water supply KW - isotopes KW - pollution KW - nitrates KW - tritium KW - ground water KW - aquifers KW - volatiles KW - organic compounds KW - radioactive isotopes KW - hydrogen KW - volatile organic compounds KW - tracers KW - risk assessment KW - water wells KW - public health KW - Ohio KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008817303?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Midwest+Ground+Water+Conference&rft.atitle=Susceptibility+analyses+of+ground+water+public+water+systems+under+Ohio%27s+source+water+assessment+and+protection+program&rft.au=Slattery%2C+Linda%3BKenah%2C+Christopher%3BAnonymous&rft.aulast=Slattery&rft.aufirst=Linda&rft.date=2000-10-01&rft.volume=45&rft.issue=&rft.spage=56&rft.isbn=&rft.btitle=&rft.title=Midwest+Ground+Water+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 45th annual Midwest ground water conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - SuppNotes - Sponsoring agencies: Ohio Department of Natural Resources, Division of Water; Ohio Envirnmental Protection Agency, N1 - Last updated - 2012-06-07 N1 - CODEN - #03005 N1 - SubjectsTermNotLitGenreText - aquifers; ground water; hydrogen; isotopes; nitrates; Ohio; organic compounds; pollution; protection; public health; radioactive isotopes; risk assessment; tracers; tritium; United States; volatile organic compounds; volatiles; water quality; water supply; water wells ER - TY - JOUR T1 - A technical approach to delineating source water protection areas in Ohio AN - 1008817283; 2012-039311 JF - Midwest Ground Water Conference AU - Raymond, Heather AU - Hunt, Kristy AU - Metropulos, Kathy AU - Bondoc, Mike AU - Heider, Patrick AU - McGinnis, John AU - Mosher, Stephanie AU - Preston, Mike AU - Proffit, Mike AU - Anonymous Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 53 PB - [publisher varies], [location varies] VL - 45 KW - United States KW - protection KW - ArcView KW - water supply KW - ArcGIS KW - Monte Carlo analysis KW - statistical analysis KW - pumping KW - MODFLOW KW - hydrogeology KW - GFLOW KW - ground water KW - aquifers KW - models KW - geographic information systems KW - information systems KW - shape method KW - Ohio KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008817283?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Midwest+Ground+Water+Conference&rft.atitle=A+technical+approach+to+delineating+source+water+protection+areas+in+Ohio&rft.au=Raymond%2C+Heather%3BHunt%2C+Kristy%3BMetropulos%2C+Kathy%3BBondoc%2C+Mike%3BHeider%2C+Patrick%3BMcGinnis%2C+John%3BMosher%2C+Stephanie%3BPreston%2C+Mike%3BProffit%2C+Mike%3BAnonymous&rft.aulast=Raymond&rft.aufirst=Heather&rft.date=2000-10-01&rft.volume=45&rft.issue=&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Midwest+Ground+Water+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 45th annual Midwest ground water conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - SuppNotes - Sponsoring agencies: Ohio Department of Natural Resources, Division of Water; Ohio Envirnmental Protection Agency, N1 - Last updated - 2012-06-07 N1 - CODEN - #03005 N1 - SubjectsTermNotLitGenreText - aquifers; ArcGIS; ArcView; geographic information systems; GFLOW; ground water; hydrogeology; information systems; models; MODFLOW; Monte Carlo analysis; Ohio; protection; pumping; shape method; statistical analysis; United States; water supply ER - TY - JOUR T1 - Mutation spectra in Salmonella of analogues of MX: implications of chemical structure for mutational mechanisms. AN - 72305121; 11006412 AB - We determined the mutation spectra in Salmonella of four chlorinated butenoic acid analogues (BA-1 through BA-4) of the drinking water mutagen 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (MX) and compared the results with those generated previously by us for MX and a related compound, MCF. We then considered relationships between the properties of mutagenic potency and mutational specificity for these six chlorinated butenoic acid analogues. In TA98, the three most potent mutagens, BA-3, BA-4, MX, and the organic extract, all induced large percentages of complex frameshifts (33-67%), which distinguish these agents from any other class of compound studied previously. In TA100, which has only GC sites for mutation recovery, >71% of the mutations induced by all of the agents were GC-->TA transversions. The availability of both GC and TA sites for mutation in TA104 resulted in greater distinctions in mutational specificity than in TA100. MX targeted GC sites almost exclusively (98%); the structurally similar BA-4 and BA-2 produced mutations at similar frequencies at both GC and AT sites; and the structurally similar BA-3 and BA-1 induced most mutations at AT sites (69%). Thus, large variations in structural properties influencing relative mutagenic potency appeared to be distinct from the more localized similar structural features influencing mutagenic specificity in TA104. Among a set of physicochemical properties examined for the six butenoic acids, a significant correlation was found between pK(a) and mutagenic potency in TA100, even when the unionized fraction of the activity dose was considered. In addition, a correlation in CLOGP for BA-1 to BA-4 suggested a role for bioavailability in determining mutagenic potency. These results illustrate the potential value of structural analyses for exploring the relationship between chemical structure and mutational mechanisms. To our knowledge, this is the first study in which such analyses have been applied to structural analogues for which both mutagenic potency and mutation spectra date were available. JF - Mutation research AU - DeMarini, D M AU - Landi, S AU - Ohe, T AU - Shaughnessy, D T AU - Franzén, R AU - Richard, A M AD - Environmental Carcinogenesis Division (MD-68), US Environmental Protection Agency, Research Triangle Park, NC 27711, USA. demarini.david@epa.gov Y1 - 2000/09/20/ PY - 2000 DA - 2000 Sep 20 SP - 51 EP - 65 VL - 453 IS - 1 SN - 0027-5107, 0027-5107 KW - DNA, Bacterial KW - 0 KW - Furans KW - Mutagens KW - 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone KW - 77439-76-0 KW - Index Medicus KW - Mutagenicity Tests KW - Base Sequence KW - Molecular Sequence Data KW - Monte Carlo Method KW - Structure-Activity Relationship KW - Salmonella -- drug effects KW - Salmonella -- genetics KW - Furans -- chemistry KW - Furans -- toxicity KW - Mutagens -- toxicity KW - Mutation KW - Mutagens -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72305121?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+research&rft.atitle=Mutation+spectra+in+Salmonella+of+analogues+of+MX%3A+implications+of+chemical+structure+for+mutational+mechanisms.&rft.au=DeMarini%2C+D+M%3BLandi%2C+S%3BOhe%2C+T%3BShaughnessy%2C+D+T%3BFranz%C3%A9n%2C+R%3BRichard%2C+A+M&rft.aulast=DeMarini&rft.aufirst=D&rft.date=2000-09-20&rft.volume=453&rft.issue=1&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=Mutation+research&rft.issn=00275107&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-28 N1 - Date created - 2000-11-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Environmental mass spectrometry. AN - 72298412; 11008787 JF - Analytical chemistry AU - Richardson, S D AD - National Exposure Research Laboratory, U.S. Environmental Protection Agency, Athens, Georgia 30605, USA. Y1 - 2000/09/15/ PY - 2000 DA - 2000 Sep 15 SP - 4477 EP - 4496 VL - 72 IS - 18 SN - 0003-2700, 0003-2700 KW - Environmental Pollutants KW - 0 KW - Index Medicus KW - Animals KW - Humans KW - Mass Spectrometry KW - Environmental Pollutants -- analysis KW - Environmental Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72298412?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+chemistry&rft.atitle=Environmental+mass+spectrometry.&rft.au=Richardson%2C+S+D&rft.aulast=Richardson&rft.aufirst=S&rft.date=2000-09-15&rft.volume=72&rft.issue=18&rft.spage=4477&rft.isbn=&rft.btitle=&rft.title=Analytical+chemistry&rft.issn=00032700&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-26 N1 - Date created - 2000-10-26 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Using size distributions to detect nutrient and sediment effects within and between habitats AN - 18394019; 5372373 AB - We studied the use of size distributions as a response variable in limnological experiments. Previous quantifications of size distributions were incomplete or difficult to use in experimental settings, and we developed a multivariate approach that more fully describes the shape and biomass of planktonic and benthic size distributions. We reevaluate the hypothesis that fish affect the shape and nutrients affect the biomass of size distributions, and show that the multivariate approach is more responsive to detecting treatment effects. In a mesocosm experiment, we use this new quantification and analysis of size distributions to detect the main and interactive effects of nutrient addition and sediment type on both benthic and pelagic size distributions. Size distributions in both habitats responded to the nutrient and sediment treatments, indicating linkage since a treatment applied in one habitat affected the size distribution in the opposite habitat. Since size distributions reduce each habitat into a common currency, we were able to examine the nature of the linkage. The relative response of each habitat to the nutrient treatment was different with regard to the shape of the distributions, while the relative response to the sediment treatment was different with regard to the biomass in the distributions. JF - Hydrobiologia AU - Baca, R M AU - Threlkeld, ST AD - U.S. Environmental Protection Agency, Ecosystems Research Division, 960 College Station Road, Athens, GA 30605, USA, baca.robert@epa.gov Y1 - 2000/09/15/ PY - 2000 DA - 2000 Sep 15 SP - 197 EP - 211 VL - 435 IS - 1-3 SN - 0018-8158, 0018-8158 KW - Fish KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Q1 01464:Other aquatic communities KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18394019?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrobiologia&rft.atitle=Using+size+distributions+to+detect+nutrient+and+sediment+effects+within+and+between+habitats&rft.au=Baca%2C+R+M%3BThrelkeld%2C+ST&rft.aulast=Baca&rft.aufirst=R&rft.date=2000-09-15&rft.volume=435&rft.issue=1-3&rft.spage=197&rft.isbn=&rft.btitle=&rft.title=Hydrobiologia&rft.issn=00188158&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Dose-Response Relationships for Induction of CYP1A1 and CYP1A2 Enzyme Activity in Liver, Lung, and Skin in Female Mice Following Subchronic Exposure to Polychlorinated Biphenyls AN - 17677058; 4757768 AB - The Toxic Equivalency Factor (TEF) method is used to estimate potential health risks associated with exposure to dioxin-like chemicals. The TEF method is a relative potency (REP) scheme that assumes dose additivity, that the chemicals produce the same response through the same mechanism, and that the REP of a chemical is equivalent for all responses. The present study estimates the REP for five PCBs with dioxin-like activity. Mice were exposed to either 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), 2,3,3',4,4'-pentachlorobiphenyl (105), 2,3',4,4',5-pentachlorobiphenyl (118), 3,3',4,4',5-pentachlorobiphenyl (126), or 2,3,3',4,4'-,5-hexachlorobiphenyl (156), five days/week for 13 weeks by oral gavage in a corn oil vehicle. Three days after the last dose, animals were euthanized and the ethoxyresorufin-O-deethylase activity was determined in liver, lung, and skin. Acetanilide-4-hydroxylase activity was determined in liver. In addition, liver and skin disposition of the chemicals were determined. REPs were estimated using a statistical method previously described (DeVito et al., Toxicol. Appl. Pharmacol. 147, 267-280, 1997). For any given compound, the REP generally varied by less than a factor of four across endpoints when calculated based on an administered dose. However, typically there was one response for every chemical in which the REP was different by an order of magnitude or more from the other responses. There was some evidence that the REPs may be dose-dependent. While, in general, these data support the use of a single point estimate of the REP, the issue of dose-dependency requires targeted investigation. JF - Toxicology and Applied Pharmacology AU - Devito, MJ AU - Menache, M G AU - Diliberto, J J AU - Ross, D G AU - Birnbaum, L S AD - Environmental Toxicology Division, United States Environmental Protection Agency, Research Triangle Park, 27711, North Carolina, devito.mike@epamail.epa.gov Y1 - 2000/09/15/ PY - 2000 DA - 2000 Sep 15 SP - 157 EP - 172 PB - Academic Press VL - 167 IS - 3 SN - 0041-008X, 0041-008X KW - dose-response effects KW - mice KW - subchronic exposure KW - CYP1A1 protein KW - CYP1A2 protein KW - Toxicology Abstracts KW - Skin KW - Lung KW - Liver KW - PCB KW - X 24155:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17677058?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+and+Applied+Pharmacology&rft.atitle=Dose-Response+Relationships+for+Induction+of+CYP1A1+and+CYP1A2+Enzyme+Activity+in+Liver%2C+Lung%2C+and+Skin+in+Female+Mice+Following+Subchronic+Exposure+to+Polychlorinated+Biphenyls&rft.au=Devito%2C+MJ%3BMenache%2C+M+G%3BDiliberto%2C+J+J%3BRoss%2C+D+G%3BBirnbaum%2C+L+S&rft.aulast=Devito&rft.aufirst=MJ&rft.date=2000-09-15&rft.volume=167&rft.issue=3&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+Applied+Pharmacology&rft.issn=0041008X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - PCB; Liver; Lung; Skin ER - TY - JOUR T1 - Development of California Public Health Goals (PHGs) for chemicals in drinking water. AN - 72525964; 11139167 AB - As part of a program for evaluation of environmental contaminants in drinking water, risk assessments are being conducted to develop Public Health Goals (PHGs) for chemicals in drinking water, based solely on public health considerations. California's Safe Drinking Water Act of 1996 mandated the development of PHGs for over 80 chemicals by 31 December 1999. The law allowed these levels to be set higher or lower than federal maximum contaminant levels (MCLs), including a level of zero if data are insufficient to determine a specific level. The estimated safe levels and toxicological rationale for the first 26 of these chemicals are described here. The chemicals include alachlor, antimony, benzo[a]pyrene, chlordane, copper, cyanide, dalapon, 1,2-dichlorobenzene, 1,4-dichlorobenzene, 2,4-D, diethylhexylphthalate, dinoseb, endothall, ethylbenzene, fluoride, glyphosate, lead, nitrate, nitrite, oxamyl, pentachlorophenol, picloram, trichlorofluoromethane, trichlorotrifluoroethane, uranium and xylene(s). These risk assessments are to be considered by the State of California in revising and developing state MCLs for chemicals in drinking water (which must not exceed federal MCLs). The estimates are also notable for incorporation or consideration of newer guidelines and principles for risk assessment extrapolations. JF - Journal of applied toxicology : JAT AU - Howd, R A AU - Brown, J P AU - Morry, D W AU - Wang, Y Y AU - Bankowska, J AU - Budroe, J D AU - Campbell, M AU - DiBartolomeis, M J AU - Faust, J AU - Jowa, L AU - Lewis, D AU - Parker, T AU - Polakoff, J AU - Rice, D W AU - Salmon, A G AU - Tomar, R S AU - Fan, A M AD - Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, Oakland 94612, USA. PY - 2000 SP - 365 EP - 380 VL - 20 IS - 5 SN - 0260-437X, 0260-437X KW - Carcinogens KW - 0 KW - Water Pollutants KW - Index Medicus KW - Animals KW - Water Pollutants -- analysis KW - Endpoint Determination KW - Humans KW - Algorithms KW - Carcinogens -- toxicity KW - Carcinogens -- analysis KW - Child KW - Mice KW - Water Pollutants -- toxicity KW - Rats KW - California KW - No-Observed-Adverse-Effect Level KW - Dogs KW - Life Expectancy KW - Water Supply -- analysis KW - Water Supply -- standards KW - Public Health -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72525964?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+applied+toxicology+%3A+JAT&rft.atitle=Development+of+California+Public+Health+Goals+%28PHGs%29+for+chemicals+in+drinking+water.&rft.au=Howd%2C+R+A%3BBrown%2C+J+P%3BMorry%2C+D+W%3BWang%2C+Y+Y%3BBankowska%2C+J%3BBudroe%2C+J+D%3BCampbell%2C+M%3BDiBartolomeis%2C+M+J%3BFaust%2C+J%3BJowa%2C+L%3BLewis%2C+D%3BParker%2C+T%3BPolakoff%2C+J%3BRice%2C+D+W%3BSalmon%2C+A+G%3BTomar%2C+R+S%3BFan%2C+A+M&rft.aulast=Howd&rft.aufirst=R&rft.date=2000-09-01&rft.volume=20&rft.issue=5&rft.spage=365&rft.isbn=&rft.btitle=&rft.title=Journal+of+applied+toxicology+%3A+JAT&rft.issn=0260437X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-03-01 N1 - Date created - 2001-01-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Relationships of mortality with the fine and coarse fractions of long-term ambient PM10 concentrations in nonsmokers. AN - 72361657; 11051533 AB - In a cohort of 6338 California Seventh-day Adventists, we previously observed for males associations between long-term concentrations of particulate matter (PM) with an aerodynamic diameter less than 10 microm (PM10) and 15-year mortality due to all natural causes (ANC) and lung cancer (LC) listed as underlying causes of death and due to nonmalignant respiratory disease listed as either the underlying or a contributing (CRC) cause of death. The purpose of this analysis was to determine whether these outcomes were more strongly associated with the fine (PM2.5) or the coarse (PM2.5-10) fractions of PM10. For participants who lived near an airport (n=3769), daily PM2.5 concentrations were estimated from airport visibility, and on a monthly basis, PM2.5-10 concentrations were calculated as the differences between PM10 and PM2.5. Associations between ANC, CRC, and LC mortality (1977-1992) and mean PM10, PM2.5, and PM2.5-10 concentrations at study baseline (1973-1977) were assessed using Cox proportional hazards models. Magnitudes of the PM10 associations for the males of this subgroup were similar to those for the males in the entire cohort although not statistically significant due to the smaller numbers. In single-pollutant models, for an interquartile range (IQR) increase in PM10 (29.5 microg/m3), the rate ratios (RRs) and 95% confidence intervals (CI) were 1.15 (0.94, 1.41) for ANC, 1.48 (0.93, 2.34) for CRC, and 1.84 (0.59, 5.67) for LC. For an IQR increase in PM2.5 (24.3 microg/m3), corresponding RRs (95% CI) were 1.22 (0.95, 1.58), 1.64 (0.93, 2.90), and 2.23 (0.56, 8.94), and for an IQR increase in PM2.5-10 (9.7 microg/m3), corresponding RRs (95% CI) were 1.05 (0.92, 1.20), 1.19 (0.88, 1.62), and 1.25 (0.63, 2.49), respectively. When both PM25 and PM2.5-10 were entered into the same model, the PM2.5 estimates remained stable while those of PM2.5-10 decreased. We concluded that previously observed associations of long-term ambient PM10 concentration with mortality for males were best explained by a relationship of mortality with the fine fraction of PM10 rather than with the coarse fraction of PM10. JF - Journal of exposure analysis and environmental epidemiology AU - McDonnell, W F AU - Nishino-Ishikawa, N AU - Petersen, F F AU - Chen, L H AU - Abbey, D E AD - Human Studies Division, U.S. Environmental Protection Agency, RTP, North Carolina, USA. mcdonnell.william@epa.gov PY - 2000 SP - 427 EP - 436 VL - 10 IS - 5 SN - 1053-4245, 1053-4245 KW - Air Pollutants KW - 0 KW - Index Medicus KW - California KW - Humans KW - Cohort Studies KW - Adult KW - Environmental Exposure KW - Sex Distribution KW - Male KW - Female KW - Proportional Hazards Models KW - Particle Size KW - Air Pollutants -- isolation & purification KW - Air Pollutants -- adverse effects KW - Cause of Death UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72361657?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.atitle=Relationships+of+mortality+with+the+fine+and+coarse+fractions+of+long-term+ambient+PM10+concentrations+in+nonsmokers.&rft.au=McDonnell%2C+W+F%3BNishino-Ishikawa%2C+N%3BPetersen%2C+F+F%3BChen%2C+L+H%3BAbbey%2C+D+E&rft.aulast=McDonnell&rft.aufirst=W&rft.date=2000-09-01&rft.volume=10&rft.issue=5&rft.spage=427&rft.isbn=&rft.btitle=&rft.title=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.issn=10534245&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-02-08 N1 - Date created - 2001-02-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Comparison of PM2.5 and PM10 monitors. AN - 72361052; 11051539 AB - An extensive PM monitoring study was conducted during the 1998 Baltimore PM Epidemiology-Exposure Study of the Elderly. One goal was to investigate the mass concentration comparability between various monitoring instrumentation located across residential indoor, residential outdoor, and ambient sites. Filter-based (24-h integrated) samplers included Federal Reference Method Monitors (PM2.5-FRMs), Personal Environmental Monitors (PEMs), Versatile Air Pollution Samplers (VAPS), and cyclone-based instruments. Tapered element oscillating microbalances (TEOMs) collected real-time data. Measurements were collected on a near-daily basis over a 28-day period during July-August, 1998. The selected monitors had individual sampling completeness percentages ranging from 64% to 100%. Quantitation limits varied from 0.2 to 5.0 microg/m3. Results from matched days indicated that mean individual PM10 and PM2.5 mass concentrations differed by less than 3 microg/m3 across the instrumentation and within each respective size fraction. PM10 and PM2.5 mass concentration regression coefficients of determination between the monitors often exceeded 0.90 with coarse (PM10-2.5) comparisons revealing coefficients typically well below 0.40. Only one of the outdoor collocated PM2.5 monitors (PEM) provided mass concentration data that were statistically different from that produced by a protoype PM2.5 FRM sampler. The PEM had a positive mass concentration bias ranging up to 18% relative to the FRM prototype. JF - Journal of exposure analysis and environmental epidemiology AU - Williams, R AU - Suggs, J AU - Rodes, C AU - Lawless, P AU - Zweidinger, R AU - Kwok, R AU - Creason, J AU - Sheldon, L AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory, Research Triangle Park, North Carolina 27711, USA. williams.ronald@epa.gov PY - 2000 SP - 497 EP - 505 VL - 10 IS - 5 SN - 1053-4245, 1053-4245 KW - Air Pollutants KW - 0 KW - Index Medicus KW - Regression Analysis KW - Baltimore KW - Air Pollution, Indoor -- analysis KW - Air Pollutants -- analysis KW - Environmental Monitoring -- methods KW - Environmental Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72361052?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.atitle=Comparison+of+PM2.5+and+PM10+monitors.&rft.au=Williams%2C+R%3BSuggs%2C+J%3BRodes%2C+C%3BLawless%2C+P%3BZweidinger%2C+R%3BKwok%2C+R%3BCreason%2C+J%3BSheldon%2C+L&rft.aulast=Williams&rft.aufirst=R&rft.date=2000-09-01&rft.volume=10&rft.issue=5&rft.spage=497&rft.isbn=&rft.btitle=&rft.title=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.issn=10534245&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-02-08 N1 - Date created - 2001-02-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Environmental screening of acidic compounds based on capillary zone electrophoresis/laser-induced fluorescence detection with identification by gas chromatography/mass spectrometry and gas chromatography/high-resolution mass spectrometry. AN - 72359493; 11048845 AB - This paper describes the application of capillary zone electrophoresis/laser-induced fluorescence detection (CZE/LIF) to the discovery of acidic compounds in environmental matrixes or the screening of extracts for acidic components. Published studies indicate that coal-derived materials contain a significant fraction of acidic compounds relative to materials derived from petroleum and shales. Such compounds may be useful as marker compounds for site assessment and source apportionment issues, and their identification may be important in toxicological and other health issues. We used deep-UV light from the frequency-doubled Ar ion laser at 244 and 257 nm to study extracts of samples. The CZE/LIF technique possesses good sensitivity and therefore overcomes one of the limitations of CZE with UV detection. The present work depends on high pressure/temperature solvent extraction of polynuclear aromatic hydrocarbon (PNA)-contaminated soil, followed by separation using CZE. The anionic analytes were separated by using borate or phosphate buffer (pH 9.2-12.3) after a chemical class separation. Samples were also characterized by gas chromatography/mass spectrometry (GC/MS) using full scans at low resolution, and elemental compositions were determined unequivocally by GC/high-resolution MS (GC/HRMS) using mass peak profiling (MPP). The similarity of low-resolution electron ionization mass spectra for a standard, 1-hydroxypyrene, and for a series of compounds in a contaminated-soil extract suggested that several types of phenolic and hydroxy-PNAs were present, including hydroxylated derivatives of fluorenes, fluoranthenes, and pyrenes. GC/HRMS using MPP confirmed the elemental compositions of the hydroxyfluorenes and hydroxypyrenes (and presumably hydroxyfluoranthenes) as [C13H10O] and [C16H10O], respectively. A new version of the MPP software was written for the Finnigan-MAT 900S-Trap and was similar to that developed previously for the VG 250SE. Inclusion of a calibration ion in addition to a lock mass ion in the multiple-ion detection descriptor provided errors of <1 ppm for the 3 partial profiles of the analytes. A mass resolution of 31,000 was used to resolve the analyte signals from interferences evident in the full M+1 and M+2 profiles in the case of the hydroxyfluorenes. Derivatization was also performed to form the tert-butyldimethylsilyl derivatives of phenolic hydroxy groups as a further confirmation of structure. JF - Journal of AOAC International AU - Brumley, W C AU - Grange, A H AU - Kelliher, V AU - Patterson, D B AU - Montcalm, A AU - Glassman, J AU - Farley, J W AD - US Environmental Protection Agency, Environmental Sciences Division, Las Vegas, NV 89193-3478, USA. PY - 2000 SP - 1059 EP - 1067 VL - 83 IS - 5 SN - 1060-3271, 1060-3271 KW - Acids KW - 0 KW - Indicators and Reagents KW - Phenols KW - Polycyclic Aromatic Hydrocarbons KW - Soil KW - Soil Pollutants KW - Solutions KW - Index Medicus KW - Acids -- analysis KW - Spectrometry, Fluorescence KW - Reference Standards KW - Polycyclic Aromatic Hydrocarbons -- analysis KW - Gas Chromatography-Mass Spectrometry KW - Soil -- analysis KW - Phenols -- analysis KW - Electrophoresis, Capillary KW - Soil Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72359493?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+AOAC+International&rft.atitle=Environmental+screening+of+acidic+compounds+based+on+capillary+zone+electrophoresis%2Flaser-induced+fluorescence+detection+with+identification+by+gas+chromatography%2Fmass+spectrometry+and+gas+chromatography%2Fhigh-resolution+mass+spectrometry.&rft.au=Brumley%2C+W+C%3BGrange%2C+A+H%3BKelliher%2C+V%3BPatterson%2C+D+B%3BMontcalm%2C+A%3BGlassman%2C+J%3BFarley%2C+J+W&rft.aulast=Brumley&rft.aufirst=W&rft.date=2000-09-01&rft.volume=83&rft.issue=5&rft.spage=1059&rft.isbn=&rft.btitle=&rft.title=Journal+of+AOAC+International&rft.issn=10603271&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-02-22 N1 - Date created - 2001-02-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Permanental polynomials of the smaller fullerenes. AN - 72353798; 11045815 AB - Using a general computer code developed previously, permanental polynomials were computed for all fullerenes C< or =36. Mathematical properties of the coefficients and zeroes were investigated. For a given isomer series of constant n, the n/2 independent zeroes appear to consist of a set of 10 that are nearly constant within the series and a set of n/2-10 that differ greatly with structure. JF - Journal of chemical information and computer sciences AU - Cash, G G AD - New Chemicals Screening and Assessment Branch, Risk Assessment Division, U.S. Environmental Protection Agency, Washington, DC 20460, USA. cash.gordon@epa.gov PY - 2000 SP - 1207 EP - 1209 VL - 40 IS - 5 SN - 0095-2338, 0095-2338 KW - Environmental Pollutants KW - 0 KW - Carbon KW - 7440-44-0 KW - Index Medicus KW - Algorithms KW - Carbon -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72353798?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+chemical+information+and+computer+sciences&rft.atitle=Permanental+polynomials+of+the+smaller+fullerenes.&rft.au=Cash%2C+G+G&rft.aulast=Cash&rft.aufirst=G&rft.date=2000-09-01&rft.volume=40&rft.issue=5&rft.spage=1207&rft.isbn=&rft.btitle=&rft.title=Journal+of+chemical+information+and+computer+sciences&rft.issn=00952338&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-11-17 N1 - Date created - 2000-11-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The permanental polynomial. AN - 72351672; 11045814 AB - This study identifies properties and uses of the permanental polynomial of adjacency matrixes of unweighted chemical graphs. Coefficients and zeroes of the polynomial for several representative structures are provided, and their properties are discussed. A computer program for calculating the permanental polynomial from the adjacency matrix is also described. JF - Journal of chemical information and computer sciences AU - Cash, G G AD - Risk Assessment Division, U.S. Environmental Protection Agency, Washington, DC 20460, USA. cash.gordon@epa.gov PY - 2000 SP - 1203 EP - 1206 VL - 40 IS - 5 SN - 0095-2338, 0095-2338 KW - Environmental Pollutants KW - 0 KW - Polycyclic Compounds KW - Carbon KW - 7440-44-0 KW - coronene KW - 7YY0X5XT1W KW - Benzene KW - J64922108F KW - Index Medicus KW - Benzene -- chemistry KW - Algorithms KW - Carbon -- chemistry KW - Polycyclic Compounds -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72351672?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+chemical+information+and+computer+sciences&rft.atitle=The+permanental+polynomial.&rft.au=Cash%2C+G+G&rft.aulast=Cash&rft.aufirst=G&rft.date=2000-09-01&rft.volume=40&rft.issue=5&rft.spage=1203&rft.isbn=&rft.btitle=&rft.title=Journal+of+chemical+information+and+computer+sciences&rft.issn=00952338&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-11-17 N1 - Date created - 2000-11-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - CONF T1 - Applying biomarker research. AN - 72314870; 11017898 JF - Environmental health perspectives AU - Bennett, D A AU - Waters, M D Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 907 EP - 910 VL - 108 IS - 9 KW - Biomarkers KW - 0 KW - Environmental Pollutants KW - Index Medicus KW - Public Health KW - Epidemiologic Studies KW - Humans KW - Research Design KW - Biomarkers -- analysis KW - Risk Assessment -- methods KW - Environmental Pollutants -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72314870?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Environmental+health+perspectives&rft.atitle=Applying+biomarker+research.&rft.au=Bennett%2C+D+A%3BWaters%2C+M+D&rft.aulast=Bennett&rft.aufirst=D&rft.date=2000-09-01&rft.volume=108&rft.issue=9&rft.spage=907&rft.isbn=&rft.btitle=&rft.title=Environmental+health+perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-22 N1 - Date created - 2000-11-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Semen quality and reproductive health of young Czech men exposed to seasonal air pollution. AN - 72312210; 11017895 AB - This study of male reproductive health in the Czech Republic resulted from community concern about potential adverse effects of air pollution. We compared young men (18 years of age) living in Teplice, a highly industrialized district with seasonally elevated levels of air pollution, to those from Prachatice, a rural district with relatively clean air. Surveys were scheduled for either late winter, after the season of higher air pollution, or at the end of summer, when pollution was low. Participation included a physical examination, donation of a semen sample, and completion of a questionnaire on health, personal habits, and exposure to solvents and metals through work or hobby. Analysis of data from 408 volunteers showed that the men from Teplice and Prachatice were similar in physical characteristics, personal habits, and work- or hobby-related exposures. Sixty-six percent (272) of these men donated a single semen sample for routine semen analysis, computer-aided sperm motion analysis, and sperm chromatin structure assay. The mean (median) sperm concentration and sperm count were 61. 2 (44.0) million/mL semen and 113.3 (81.5) million, respectively, and were not associated with district of residence or period of elevated air pollution. However, periods of elevated air pollution in Teplice were significantly associated with decrements in other semen measures including proportionately fewer motile sperm, proportionately fewer sperm with normal morphology or normal head shape, and proportionately more sperm with abnormal chromatin. These results suggest that young men may experience alterations in sperm quality after exposure to periods of elevated air pollution, without changes in sperm numbers. JF - Environmental health perspectives AU - Selevan, S G AU - Borkovec, L AU - Slott, V L AU - Zudová, Z AU - Rubes, J AU - Evenson, D P AU - Perreault, S D AD - U.S. Environmental Protection Agency, Washington, DC 20460, USA. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 887 EP - 894 VL - 108 IS - 9 SN - 0091-6765, 0091-6765 KW - Chromatin KW - 0 KW - Index Medicus KW - Sperm Count KW - Rural Population KW - Humans KW - Czech Republic -- epidemiology KW - Seasons KW - Adult KW - Sperm Motility -- drug effects KW - Adolescent KW - Urban Population KW - Male KW - Sperm Motility -- physiology KW - Industry KW - Reproduction -- physiology KW - Air Pollution -- adverse effects KW - Reproduction -- drug effects KW - Infertility, Male -- chemically induced KW - Infertility, Male -- epidemiology KW - Semen -- physiology KW - Semen -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72312210?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+health+perspectives&rft.atitle=Semen+quality+and+reproductive+health+of+young+Czech+men+exposed+to+seasonal+air+pollution.&rft.au=Selevan%2C+S+G%3BBorkovec%2C+L%3BSlott%2C+V+L%3BZudov%C3%A1%2C+Z%3BRubes%2C+J%3BEvenson%2C+D+P%3BPerreault%2C+S+D&rft.aulast=Selevan&rft.aufirst=S&rft.date=2000-09-01&rft.volume=108&rft.issue=9&rft.spage=887&rft.isbn=&rft.btitle=&rft.title=Environmental+health+perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-22 N1 - Date created - 2000-11-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Evaluation of aneuploidy and DNA damage in human spermatozoa: applications in field studies. AN - 72309648; 11021516 AB - With the goal of incorporating measures of sperm nuclear integrity in an epidemiology study, semen samples from young Czech men were analysed for sperm aneuploidy and sperm chromatin structure in addition to routine measures of sperm production and quality. The exposure in question was to high seasonal air pollution containing reactive polyaromatic hydrocarbons potentially capable of affecting spermatogenesis and damaging sperm DNA. The sperm aneuploidy assay uses fluorescence in situ hybridization to label selected sperm chromosomes; as applied in this study, the sex chromosomes (X,Y) and chromosome 8 were targeted. The sperm chromatin structure assay detects sperm nuclei with increased susceptibility to denaturation, a feature that is associated with DNA damage. Logistically, these assays were relatively easy to incorporate into the study design. The aneuploidy assay provided information suggesting that exposure to high levels of air pollution may increase the risk of sperm aneuploidy and that it is important to control for exposure to cigarette smoke and/or alcohol in such studies. The sperm chromatin structure assay provided valuable baseline information about Czech semen donors and data suggestive of an adverse effect of smoking and air pollution on spermatozoa that merits further investigation. JF - Andrologia AU - Perreault, S D AU - Rubes, J AU - Robbins, W A AU - Evenson, D P AU - Selevan, S G AD - Reproductive Toxicology Division, US Environmental Protection Agency and Research Triangle Park, NC, USA. darney.sally@epa.gov Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 247 EP - 254 VL - 32 IS - 4-5 SN - 0303-4569, 0303-4569 KW - Chromatin KW - 0 KW - Index Medicus KW - Air Pollution -- adverse effects KW - Humans KW - In Situ Hybridization, Fluorescence KW - Smoking -- adverse effects KW - Adolescent KW - Chromatin -- ultrastructure KW - Male KW - Aneuploidy KW - DNA Damage KW - Spermatozoa -- metabolism KW - Spermatozoa -- ultrastructure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72309648?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Andrologia&rft.atitle=Evaluation+of+aneuploidy+and+DNA+damage+in+human+spermatozoa%3A+applications+in+field+studies.&rft.au=Perreault%2C+S+D%3BRubes%2C+J%3BRobbins%2C+W+A%3BEvenson%2C+D+P%3BSelevan%2C+S+G&rft.aulast=Perreault&rft.aufirst=S&rft.date=2000-09-01&rft.volume=32&rft.issue=4-5&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Andrologia&rft.issn=03034569&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-02-08 N1 - Date created - 2001-02-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Integrated bioreactor system for the treatment of cyanide, metals and nitrates in mine process water AN - 52308779; 2000-069689 JF - Mining Engineering AU - Canty, M AU - Hiebert, R AU - Thompson, L AU - Clark, P AU - Beckman, S Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 84 EP - 88 PB - Society for Mining, Metallurgy, and Exploration, Littleton, CO VL - 52 IS - 9 SN - 0026-5187, 0026-5187 KW - mines KW - toxic materials KW - technology KW - medical geology KW - waste water KW - pollution KW - nitrates KW - ions KW - new methods KW - environmental effects KW - remediation KW - mitigation KW - toxicity KW - metals KW - water treatment KW - environmental geology KW - pilot plants KW - bioreactors KW - cyanides KW - pH KW - biology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52308779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mining+Engineering&rft.atitle=Integrated+bioreactor+system+for+the+treatment+of+cyanide%2C+metals+and+nitrates+in+mine+process+water&rft.au=Canty%2C+M%3BHiebert%2C+R%3BThompson%2C+L%3BClark%2C+P%3BBeckman%2C+S&rft.aulast=Canty&rft.aufirst=M&rft.date=2000-09-01&rft.volume=52&rft.issue=9&rft.spage=84&rft.isbn=&rft.btitle=&rft.title=Mining+Engineering&rft.issn=00265187&rft_id=info:doi/ L2 - http://me.smenet.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 5 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MIENAB N1 - SubjectsTermNotLitGenreText - biology; bioreactors; cyanides; environmental effects; environmental geology; ions; medical geology; metals; mines; mitigation; new methods; nitrates; pH; pilot plants; pollution; remediation; technology; toxic materials; toxicity; waste water; water treatment ER - TY - JOUR T1 - Coal mining AN - 52149174; 2002-015779 JF - General Technical Report SRS AU - Wireman, Mike A2 - Dissmeyer, George E. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 187 EP - 189 PB - United States Department of Agriculture, Forest Service, Southern Research Station, Asheville, NC KW - soils KW - water quality KW - mining KW - mines KW - toxic materials KW - acid mine drainage KW - erosion KW - surface mining KW - pollutants KW - regulations KW - surface water KW - coal mines KW - pollution KW - environmental effects KW - ground water KW - waste management KW - transport KW - mining geology KW - risk assessment KW - soil erosion KW - heavy metals KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52149174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=General+Technical+Report+SRS&rft.atitle=Coal+mining&rft.au=Wireman%2C+Mike&rft.aulast=Wireman&rft.aufirst=Mike&rft.date=2000-09-01&rft.volume=&rft.issue=&rft.spage=187&rft.isbn=&rft.btitle=&rft.title=General+Technical+Report+SRS&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 4 N1 - PubXState - NC N1 - Last updated - 2012-06-07 N1 - CODEN - #05861 N1 - SubjectsTermNotLitGenreText - acid mine drainage; coal mines; environmental effects; erosion; ground water; heavy metals; mines; mining; mining geology; pollutants; pollution; regulations; risk assessment; soil erosion; soils; surface mining; surface water; toxic materials; transport; waste management; water quality ER - TY - JOUR T1 - Hardrock mining AN - 52146987; 2002-015778 JF - General Technical Report SRS AU - Wireman, Mike Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 179 EP - 186 PB - United States Department of Agriculture, Forest Service, Southern Research Station, Asheville, NC KW - water quality KW - mining KW - water management KW - environmental effects KW - ground water KW - waste management KW - mining geology KW - geochemistry KW - abandoned mines KW - mines KW - acid mine drainage KW - waste rock KW - pollutants KW - surface water KW - acid rock drainage KW - solutes KW - pollution KW - hydrochemistry KW - industrial waste KW - acidification KW - risk assessment KW - waste disposal KW - leaching KW - cyanides KW - water resources KW - tailings KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52146987?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=General+Technical+Report+SRS&rft.atitle=Hardrock+mining&rft.au=Wireman%2C+Mike&rft.aulast=Wireman&rft.aufirst=Mike&rft.date=2000-09-01&rft.volume=&rft.issue=&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=General+Technical+Report+SRS&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 3 N1 - PubXState - NC N1 - Last updated - 2014-03-14 N1 - CODEN - #05861 N1 - SubjectsTermNotLitGenreText - abandoned mines; acid mine drainage; acid rock drainage; acidification; cyanides; environmental effects; geochemistry; ground water; hydrochemistry; industrial waste; leaching; mines; mining; mining geology; pollutants; pollution; risk assessment; solutes; surface water; tailings; waste disposal; waste management; waste rock; water management; water quality; water resources ER - TY - JOUR T1 - Fourth symposium on the Environment monitoring and assessment program AN - 52014950; 2003-022025 JF - Environmental Monitoring and Assessment A2 - Sandhu, Shabeg S. A2 - Melzian, Brian D. A2 - Long, Edward R. A2 - Whitford, Walter G. A2 - Walton, Barbara T. A2 - Riikonen, Kathy A. A2 - Ghiloni, J. A. A2 - Campbell, J. F. A2 - McGivney, P. A2 - Voorhees, S. S. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 447 PB - Kluwer Academic Publishers, Dordrecht VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - water use KW - United States KW - soils KW - hydrology KW - water quality KW - monitoring KW - rivers and streams KW - regional planning KW - watersheds KW - pollution KW - ecosystems KW - environmental management KW - natural resources KW - symposia KW - Western U.S. KW - land management KW - economics KW - ecology KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52014950?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Fourth+symposium+on+the+Environment+monitoring+and+assessment+program&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-2959/ LA - English DB - GeoRef N1 - Conference title - Fourth symposium on the Environment monitoring and assessment program N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Document feature - illus. N1 - SuppNotes - Individual papers within scope are cited separately N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - ecology; economics; ecosystems; environmental management; hydrology; land management; land use; monitoring; natural resources; pollution; regional planning; rivers and streams; soils; symposia; United States; water quality; water use; watersheds; Western U.S. ER - TY - JOUR T1 - Assessing and monitoring the health of western rangeland watersheds AN - 52014564; 2003-022029 JF - Environmental Monitoring and Assessment AU - Desoyza, Amrita G AU - Whitford, Walter G AU - Turner, Sandra J AU - van Zee, Justin W AU - Johnson, Alan R A2 - Sandhu, Shabeg S. A2 - Melzian, Brian D. A2 - Long, Edward R. A2 - Whitford, Walter G. A2 - Walton, Barbara T. A2 - Riikonen, Kathy A. A2 - Ghiloni, J. A. A2 - Campbell, J. F. A2 - McGivney, P. A2 - Voorhees, S. S. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 153 EP - 166 PB - Kluwer Academic Publishers, Dordrecht VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - United States KW - water quality KW - imagery KW - degradation KW - moisture KW - rivers and streams KW - watersheds KW - New Mexico KW - vegetation KW - grasses KW - AVHRR KW - infrared methods KW - toxicity KW - Western U.S. KW - sediments KW - retention KW - drainage basins KW - ecology KW - Rio Grande Valley KW - soils KW - hydrology KW - monitoring KW - geophysical methods KW - pollution KW - rangelands KW - land use KW - remote sensing KW - airborne methods KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52014564?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Assessing+and+monitoring+the+health+of+western+rangeland+watersheds&rft.au=Desoyza%2C+Amrita+G%3BWhitford%2C+Walter+G%3BTurner%2C+Sandra+J%3Bvan+Zee%2C+Justin+W%3BJohnson%2C+Alan+R&rft.aulast=Desoyza&rft.aufirst=Amrita&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-2959/ LA - English DB - GeoRef N1 - Conference title - Fourth symposium on the Environment monitoring and assessment program N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 15 N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - airborne methods; AVHRR; degradation; drainage basins; ecology; geophysical methods; grasses; hydrology; imagery; infrared methods; land use; moisture; monitoring; New Mexico; pollution; rangelands; remote sensing; retention; Rio Grande Valley; rivers and streams; sediments; soils; toxicity; United States; vegetation; water quality; watersheds; Western U.S. ER - TY - JOUR T1 - Monitoring Australian rangeland sites using landscape function indicators and ground- and remote-based techniques AN - 52013802; 2003-022030 JF - Environmental Monitoring and Assessment AU - Ludwig, John A AU - Bastin, Gary N AU - Eager, Robert W AU - Karfs, Robert AU - Ketner, Pieter AU - Pearce, Graham A2 - Sandhu, Shabeg S. A2 - Melzian, Brian D. A2 - Long, Edward R. A2 - Whitford, Walter G. A2 - Walton, Barbara T. A2 - Riikonen, Kathy A. A2 - Ghiloni, J. A. A2 - Campbell, J. F. A2 - McGivney, P. A2 - Voorhees, S. S. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 167 EP - 178 PB - Kluwer Academic Publishers, Dordrecht VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - tropical environment KW - hydrology KW - monitoring KW - Australasia KW - erosion KW - vegetation KW - nutrients KW - habitat KW - runoff KW - land management KW - ecology KW - Australia KW - savannas KW - soil erosion KW - landscapes KW - rangelands KW - land use KW - soil management KW - remote sensing KW - productivity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52013802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Monitoring+Australian+rangeland+sites+using+landscape+function+indicators+and+ground-+and+remote-based+techniques&rft.au=Ludwig%2C+John+A%3BBastin%2C+Gary+N%3BEager%2C+Robert+W%3BKarfs%2C+Robert%3BKetner%2C+Pieter%3BPearce%2C+Graham&rft.aulast=Ludwig&rft.aufirst=John&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-2959/ LA - English DB - GeoRef N1 - Conference title - Fourth symposium on the Environment monitoring and assessment program N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 40 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Australasia; Australia; ecology; erosion; habitat; hydrology; land management; land use; landscapes; monitoring; nutrients; productivity; rangelands; remote sensing; runoff; savannas; soil erosion; soil management; tropical environment; vegetation ER - TY - JOUR T1 - An overview of contaminant-related issues identified by monitoring in San Francisco Bay AN - 52013466; 2003-022038 JF - Environmental Monitoring and Assessment AU - Thompson, Bruce AU - Hoenicke, Rainer AU - Davis, Jay A AU - Gunther, Andrew A2 - Sandhu, Shabeg S. A2 - Melzian, Brian D. A2 - Long, Edward R. A2 - Whitford, Walter G. A2 - Walton, Barbara T. A2 - Riikonen, Kathy A. A2 - Ghiloni, J. A. A2 - Campbell, J. F. A2 - McGivney, P. A2 - Voorhees, S. S. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 409 EP - 419 PB - Kluwer Academic Publishers, Dordrecht VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - United States KW - chlorinated hydrocarbons KW - PCBs KW - ecosystems KW - urban environment KW - bioaccumulation KW - California KW - estuaries KW - San Francisco Bay KW - toxicity KW - sediments KW - Invertebrata KW - halogenated hydrocarbons KW - ecology KW - Mollusca KW - trace elements KW - estuarine environment KW - mercury KW - protection KW - hydrology KW - programs KW - concentration KW - monitoring KW - regional planning KW - pollution KW - decision-making KW - Bivalvia KW - organic compounds KW - metals KW - runoff KW - industrial waste KW - coastal environment KW - risk assessment KW - waste disposal KW - pesticides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52013466?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=An+overview+of+contaminant-related+issues+identified+by+monitoring+in+San+Francisco+Bay&rft.au=Thompson%2C+Bruce%3BHoenicke%2C+Rainer%3BDavis%2C+Jay+A%3BGunther%2C+Andrew&rft.aulast=Thompson&rft.aufirst=Bruce&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=409&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-2959/ LA - English DB - GeoRef N1 - Conference title - Fourth symposium on the Environment monitoring and assessment program N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 18 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bioaccumulation; Bivalvia; California; chlorinated hydrocarbons; coastal environment; concentration; decision-making; ecology; ecosystems; estuaries; estuarine environment; halogenated hydrocarbons; hydrology; industrial waste; Invertebrata; mercury; metals; Mollusca; monitoring; organic compounds; PCBs; pesticides; pollution; programs; protection; regional planning; risk assessment; runoff; San Francisco Bay; sediments; toxicity; trace elements; United States; urban environment; waste disposal ER - TY - JOUR T1 - Monitoring inter-annual variability reveals sources of mercury contamination in Clear Lake, California AN - 52013412; 2003-022035 JF - Environmental Monitoring and Assessment AU - Suchanek, Thomas H AU - Richerson, Peter J AU - Flanders, John R AU - Nelson, Douglas C AU - Mullen, Laura H AU - Brister, Linnie L AU - Becker, Jesse C A2 - Sandhu, Shabeg S. A2 - Melzian, Brian D. A2 - Long, Edward R. A2 - Whitford, Walter G. A2 - Walton, Barbara T. A2 - Riikonen, Kathy A. A2 - Ghiloni, J. A. A2 - Campbell, J. F. A2 - McGivney, P. A2 - Voorhees, S. S. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 299 EP - 310 PB - Kluwer Academic Publishers, Dordrecht VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - United States KW - water quality KW - Clear Lake KW - remediation KW - California KW - toxicity KW - transport KW - discharge KW - Superfund sites KW - mercury KW - cyanobacteria KW - concentration KW - toxic materials KW - monitoring KW - annual variations KW - acid mine drainage KW - waste rock KW - pollutants KW - surface water KW - pollution KW - organo-metallics KW - biota KW - habitat KW - Coast Ranges KW - methylmercury KW - metals KW - Sulphur Mercury Bank Mine KW - runoff KW - Lake County California KW - erodibility KW - aquatic environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52013412?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Monitoring+inter-annual+variability+reveals+sources+of+mercury+contamination+in+Clear+Lake%2C+California&rft.au=Suchanek%2C+Thomas+H%3BRicherson%2C+Peter+J%3BFlanders%2C+John+R%3BNelson%2C+Douglas+C%3BMullen%2C+Laura+H%3BBrister%2C+Linnie+L%3BBecker%2C+Jesse+C&rft.aulast=Suchanek&rft.aufirst=Thomas&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=299&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-2959/ LA - English DB - GeoRef N1 - Conference title - Fourth symposium on the Environment monitoring and assessment program N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 22 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - acid mine drainage; annual variations; aquatic environment; biota; California; Clear Lake; Coast Ranges; concentration; cyanobacteria; discharge; erodibility; habitat; Lake County California; mercury; metals; methylmercury; monitoring; organo-metallics; pollutants; pollution; remediation; runoff; Sulphur Mercury Bank Mine; Superfund sites; surface water; toxic materials; toxicity; transport; United States; waste rock; water quality ER - TY - JOUR T1 - A landscape approach for detecting and evaluating change in a semi-arid environment AN - 52012987; 2003-022031 JF - Environmental Monitoring and Assessment AU - Kepner, William G AU - Watts, Christopher J AU - Edmonds, Curtis M AU - Maingi, John K AU - Marsh, Stuart E AU - Gonzalo, Luna A2 - Sandhu, Shabeg S. A2 - Melzian, Brian D. A2 - Long, Edward R. A2 - Whitford, Walter G. A2 - Walton, Barbara T. A2 - Riikonen, Kathy A. A2 - Ghiloni, J. A. A2 - Campbell, J. F. A2 - McGivney, P. A2 - Voorhees, S. S. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 179 EP - 195 PB - Kluwer Academic Publishers, Dordrecht VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - United States KW - Sonora Mexico KW - San Pedro River KW - imagery KW - terrestrial environment KW - degradation KW - spatial data KW - semi-arid environment KW - watersheds KW - techniques KW - vegetation KW - environmental management KW - geographic information systems KW - drainage basins KW - ecology KW - hydrology KW - human activity KW - arid environment KW - water balance KW - Mexico KW - land management KW - Arizona KW - grasslands KW - Cochise County Arizona KW - aerial photography KW - information systems KW - landscapes KW - rangelands KW - land use KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52012987?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=A+landscape+approach+for+detecting+and+evaluating+change+in+a+semi-arid+environment&rft.au=Kepner%2C+William+G%3BWatts%2C+Christopher+J%3BEdmonds%2C+Curtis+M%3BMaingi%2C+John+K%3BMarsh%2C+Stuart+E%3BGonzalo%2C+Luna&rft.aulast=Kepner&rft.aufirst=William&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-2959/ LA - English DB - GeoRef N1 - Conference title - Fourth symposium on the Environment monitoring and assessment program N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 38 N1 - Document feature - illus. incl. 6 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aerial photography; arid environment; Arizona; Cochise County Arizona; degradation; drainage basins; ecology; environmental management; geographic information systems; grasslands; human activity; hydrology; imagery; information systems; land management; land use; landscapes; Mexico; rangelands; remote sensing; San Pedro River; semi-arid environment; Sonora Mexico; spatial data; techniques; terrestrial environment; United States; vegetation; water balance; watersheds ER - TY - JOUR T1 - A landscape ecology assessment of the Tensas River basin AN - 52012960; 2003-022027 JF - Environmental Monitoring and Assessment AU - Heggem, Daniel T AU - Edmond, Curtis M AU - Neale, Anne C AU - Bice, Lee AU - Jones, Bruce K A2 - Sandhu, Shabeg S. A2 - Melzian, Brian D. A2 - Long, Edward R. A2 - Whitford, Walter G. A2 - Walton, Barbara T. A2 - Riikonen, Kathy A. A2 - Ghiloni, J. A. A2 - Campbell, J. F. A2 - McGivney, P. A2 - Voorhees, S. S. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 41 EP - 54 PB - Kluwer Academic Publishers, Dordrecht VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - water use KW - United States KW - soils KW - protection KW - hydrology KW - Atchafalaya River KW - monitoring KW - human activity KW - rivers and streams KW - damage KW - watersheds KW - Tensas River basin KW - pollution KW - ecosystems KW - nutrients KW - environmental management KW - drainage basins KW - risk assessment KW - ecology KW - Louisiana KW - land use KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52012960?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=A+landscape+ecology+assessment+of+the+Tensas+River+basin&rft.au=Heggem%2C+Daniel+T%3BEdmond%2C+Curtis+M%3BNeale%2C+Anne+C%3BBice%2C+Lee%3BJones%2C+Bruce+K&rft.aulast=Heggem&rft.aufirst=Daniel&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-2959/ LA - English DB - GeoRef N1 - Conference title - Fourth symposium on the Environment monitoring and assessment program N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 10 N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Atchafalaya River; damage; drainage basins; ecology; ecosystems; environmental management; human activity; hydrology; land use; Louisiana; monitoring; nutrients; pollution; protection; remote sensing; risk assessment; rivers and streams; soils; Tensas River basin; United States; water use; watersheds ER - TY - JOUR T1 - Relations of habitat-specific algal assemblages to land use and water chemistry in the Willamette Basin, Oregon AN - 52012927; 2003-022033 JF - Environmental Monitoring and Assessment AU - Carpenter, Kurt D AU - Waite, Ian R A2 - Sandhu, Shabeg S. A2 - Melzian, Brian D. A2 - Long, Edward R. A2 - Whitford, Walter G. A2 - Walton, Barbara T. A2 - Riikonen, Kathy A. A2 - Ghiloni, J. A. A2 - Campbell, J. F. A2 - McGivney, P. A2 - Voorhees, S. S. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 247 EP - 257 PB - Kluwer Academic Publishers, Dordrecht VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - United States KW - water quality KW - Plantae KW - assemblages KW - surface water KW - rivers and streams KW - algae KW - hydrochemistry KW - Oregon KW - habitat KW - Willamette Valley KW - floral studies KW - drainage basins KW - ecology KW - taxonomy KW - NAWQA KW - Willamette River KW - water resources KW - geochemistry KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52012927?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Relations+of+habitat-specific+algal+assemblages+to+land+use+and+water+chemistry+in+the+Willamette+Basin%2C+Oregon&rft.au=Carpenter%2C+Kurt+D%3BWaite%2C+Ian+R&rft.aulast=Carpenter&rft.aufirst=Kurt&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-2959/ LA - English DB - GeoRef N1 - Conference title - Fourth symposium on the Environment monitoring and assessment program N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 25 N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algae; assemblages; drainage basins; ecology; floral studies; geochemistry; habitat; hydrochemistry; land use; NAWQA; Oregon; Plantae; rivers and streams; surface water; taxonomy; United States; water quality; water resources; Willamette River; Willamette Valley ER - TY - JOUR T1 - EMAP design and river reach file (RF3) as a sample frame in the Central Valley, California AN - 52012904; 2003-022028 JF - Environmental Monitoring and Assessment AU - Hall, Robert K AU - Olsen, Anthony AU - Stevens, Donald AU - Rosenbaum, Barbara AU - Husby, Peter AU - Wolinsky, Gary A AU - Heggem, Daniel T A2 - Sandhu, Shabeg S. A2 - Melzian, Brian D. A2 - Long, Edward R. A2 - Whitford, Walter G. A2 - Walton, Barbara T. A2 - Riikonen, Kathy A. A2 - Ghiloni, J. A. A2 - Campbell, J. F. A2 - McGivney, P. A2 - Voorhees, S. S. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 69 EP - 80 PB - Kluwer Academic Publishers, Dordrecht VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - United States KW - hydrology KW - digital data KW - San Joaquin Valley KW - spatial data KW - Sacramento Valley KW - rivers and streams KW - data processing KW - agriculture KW - watersheds KW - water management KW - urban environment KW - irrigation KW - computer programs KW - Central Valley KW - California KW - land management KW - waterways KW - rural environment KW - water resources KW - land use KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52012904?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=EMAP+design+and+river+reach+file+%28RF3%29+as+a+sample+frame+in+the+Central+Valley%2C+California&rft.au=Hall%2C+Robert+K%3BOlsen%2C+Anthony%3BStevens%2C+Donald%3BRosenbaum%2C+Barbara%3BHusby%2C+Peter%3BWolinsky%2C+Gary+A%3BHeggem%2C+Daniel+T&rft.aulast=Hall&rft.aufirst=Robert&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-2959/ LA - English DB - GeoRef N1 - Conference title - Fourth symposium on the Environment monitoring and assessment program N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 7 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - agriculture; California; Central Valley; computer programs; data processing; digital data; hydrology; irrigation; land management; land use; rivers and streams; rural environment; Sacramento Valley; San Joaquin Valley; spatial data; United States; urban environment; water management; water resources; watersheds; waterways ER - TY - JOUR T1 - An integrated ecosystem assessment of the interior Columbia Basin AN - 52012800; 2003-022026 JF - Environmental Monitoring and Assessment AU - Graham, Russel T AU - Quigley, Thomas M AU - Gravenmier, Rebecca A2 - Sandhu, Shabeg S. A2 - Melzian, Brian D. A2 - Long, Edward R. A2 - Whitford, Walter G. A2 - Walton, Barbara T. A2 - Riikonen, Kathy A. A2 - Ghiloni, J. A. A2 - Campbell, J. F. A2 - McGivney, P. A2 - Voorhees, S. S. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 31 EP - 40 PB - Kluwer Academic Publishers, Dordrecht VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - water use KW - United States KW - soils KW - terrestrial environment KW - regional planning KW - water management KW - pollution KW - ecosystems KW - biota KW - environmental management KW - habitat KW - Columbia River basin KW - land management KW - grasslands KW - drainage basins KW - risk assessment KW - economics KW - ecology KW - basin management KW - water resources KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52012800?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=An+integrated+ecosystem+assessment+of+the+interior+Columbia+Basin&rft.au=Graham%2C+Russel+T%3BQuigley%2C+Thomas+M%3BGravenmier%2C+Rebecca&rft.aulast=Graham&rft.aufirst=Russel&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-2959/ LA - English DB - GeoRef N1 - Conference title - Fourth symposium on the Environment monitoring and assessment program N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 7 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - basin management; biota; Columbia River basin; drainage basins; ecology; economics; ecosystems; environmental management; grasslands; habitat; land management; land use; pollution; regional planning; risk assessment; soils; terrestrial environment; United States; water management; water resources; water use ER - TY - JOUR T1 - Characterizing small subbasins; a case study from coastal Oregon AN - 52012244; 2003-022036 JF - Environmental Monitoring and Assessment AU - Ford, Jesse AU - Rose, Cathleen E A2 - Sandhu, Shabeg S. A2 - Melzian, Brian D. A2 - Long, Edward R. A2 - Whitford, Walter G. A2 - Walton, Barbara T. A2 - Riikonen, Kathy A. A2 - Ghiloni, J. A. A2 - Campbell, J. F. A2 - McGivney, P. A2 - Voorhees, S. S. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 359 EP - 377 PB - Kluwer Academic Publishers, Dordrecht VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - United States KW - water quality KW - rivers and streams KW - watersheds KW - remediation KW - environmental management KW - Oregon KW - drainage basins KW - ecology KW - geochemistry KW - protection KW - hydrology KW - monitoring KW - Tillamook County Oregon KW - hydrochemistry KW - biota KW - case studies KW - habitat KW - riparian environment KW - planning KW - Tillamook Basin KW - coastal environment KW - turbidity KW - streams KW - risk assessment KW - water resources KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52012244?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Characterizing+small+subbasins%3B+a+case+study+from+coastal+Oregon&rft.au=Ford%2C+Jesse%3BRose%2C+Cathleen+E&rft.aulast=Ford&rft.aufirst=Jesse&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=359&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-2959/ LA - English DB - GeoRef N1 - Conference title - Fourth symposium on the Environment monitoring and assessment program N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 25 N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - biota; case studies; coastal environment; drainage basins; ecology; environmental management; geochemistry; habitat; hydrochemistry; hydrology; land use; monitoring; Oregon; planning; protection; remediation; riparian environment; risk assessment; rivers and streams; streams; Tillamook Basin; Tillamook County Oregon; turbidity; United States; water quality; water resources; watersheds ER - TY - JOUR T1 - Spatial extent of sediment toxicity in U. S. estuaries and marine bays AN - 52011656; 2003-022037 JF - Environmental Monitoring and Assessment AU - Long, Edward R A2 - Sandhu, Shabeg S. A2 - Melzian, Brian D. A2 - Long, Edward R. A2 - Whitford, Walter G. A2 - Walton, Barbara T. A2 - Riikonen, Kathy A. A2 - Ghiloni, J. A. A2 - Campbell, J. F. A2 - McGivney, P. A2 - Voorhees, S. S. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 391 EP - 407 PB - Kluwer Academic Publishers, Dordrecht VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - United States KW - hazardous waste KW - benthic taxa KW - monitoring KW - bays KW - pollution KW - nonpoint sources KW - nearshore environment KW - environmental analysis KW - Gulf of Mexico KW - dredged materials KW - habitat KW - toxicity KW - sediments KW - Pacific Coast KW - coastal environment KW - testing KW - ecology KW - North Atlantic KW - estuarine environment KW - point sources KW - Atlantic Ocean KW - Atlantic Coastal Plain KW - 07:Oceanography KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52011656?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Spatial+extent+of+sediment+toxicity+in+U.+S.+estuaries+and+marine+bays&rft.au=Long%2C+Edward+R&rft.aulast=Long&rft.aufirst=Edward&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=391&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-2959/ LA - English DB - GeoRef N1 - Conference title - Fourth symposium on the Environment monitoring and assessment program N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Atlantic Coastal Plain; Atlantic Ocean; bays; benthic taxa; coastal environment; dredged materials; ecology; environmental analysis; estuarine environment; Gulf of Mexico; habitat; hazardous waste; monitoring; nearshore environment; nonpoint sources; North Atlantic; Pacific Coast; point sources; pollution; sediments; testing; toxicity; United States ER - TY - JOUR T1 - Responses of physical, chemical, and biological indicators of water quality to a gradient of agricultural land use in the Yakima River Basin, Washington AN - 52011619; 2003-022034 JF - Environmental Monitoring and Assessment AU - Cuffney, Thomas F AU - Meador, Michael R AU - Porter, Stephen D AU - Gurtz, Martin E A2 - Sandhu, Shabeg S. A2 - Melzian, Brian D. A2 - Long, Edward R. A2 - Whitford, Walter G. A2 - Walton, Barbara T. A2 - Riikonen, Kathy A. A2 - Ghiloni, J. A. A2 - Campbell, J. F. A2 - McGivney, P. A2 - Voorhees, S. S. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 259 EP - 270 PB - Kluwer Academic Publishers, Dordrecht VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - United States KW - water quality KW - rivers and streams KW - water management KW - urbanization KW - Columbia River basin KW - drainage basins KW - ecology KW - soils KW - hydrology KW - programs KW - concentration KW - Washington KW - monitoring KW - Yakima River basin KW - surface water KW - agriculture KW - pollution KW - forestry KW - biota KW - nutrients KW - Cascade Range KW - habitat KW - grasslands KW - risk assessment KW - pesticides KW - NAWQA KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52011619?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Responses+of+physical%2C+chemical%2C+and+biological+indicators+of+water+quality+to+a+gradient+of+agricultural+land+use+in+the+Yakima+River+Basin%2C+Washington&rft.au=Cuffney%2C+Thomas+F%3BMeador%2C+Michael+R%3BPorter%2C+Stephen+D%3BGurtz%2C+Martin+E&rft.aulast=Cuffney&rft.aufirst=Thomas&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=259&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-2959/ LA - English DB - GeoRef N1 - Conference title - Fourth symposium on the Environment monitoring and assessment program N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 32 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - agriculture; biota; Cascade Range; Columbia River basin; concentration; drainage basins; ecology; forestry; grasslands; habitat; hydrology; land use; monitoring; NAWQA; nutrients; pesticides; pollution; programs; risk assessment; rivers and streams; soils; surface water; United States; urbanization; Washington; water management; water quality; Yakima River basin ER - TY - JOUR T1 - Assessing landscape condition relative to water resources in the Western United States; a strategic approach AN - 52011496; 2003-022032 JF - Environmental Monitoring and Assessment AU - Jones, K Bruce AU - Heggem, Daniel T AU - Wade, Timothy G AU - Neale, Anne C AU - Ebert, Donald W AU - Nash, Maliha S AU - Mehaffey, Megan H AU - Hermann, Karl A AU - Selle, Anthony R AU - Augustine, Scott AU - Goodman, Iris A AU - Pedersen, Joel AU - Bolgrien, David AU - Viger, J Max AU - Chiang, Dean AU - Lin, Cindy J AU - Zhong, Yehong AU - Baker, Joan AU - van Remortel, Rick D A2 - Sandhu, Shabeg S. A2 - Melzian, Brian D. A2 - Long, Edward R. A2 - Whitford, Walter G. A2 - Walton, Barbara T. A2 - Riikonen, Kathy A. A2 - Ghiloni, J. A. A2 - Campbell, J. F. A2 - McGivney, P. A2 - Voorhees, S. S. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 227 EP - 245 PB - Kluwer Academic Publishers, Dordrecht VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - United States KW - water quality KW - degradation KW - rivers and streams KW - watersheds KW - vegetation KW - environmental management KW - Western U.S. KW - Environmental Monitoring and Assessment Program KW - EMAP KW - ecology KW - estuarine environment KW - protection KW - hydrology KW - forests KW - programs KW - monitoring KW - regional planning KW - pollution KW - research KW - nutrients KW - riparian environment KW - land management KW - risk assessment KW - landscapes KW - aquatic environment KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52011496?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Assessing+landscape+condition+relative+to+water+resources+in+the+Western+United+States%3B+a+strategic+approach&rft.au=Jones%2C+K+Bruce%3BHeggem%2C+Daniel+T%3BWade%2C+Timothy+G%3BNeale%2C+Anne+C%3BEbert%2C+Donald+W%3BNash%2C+Maliha+S%3BMehaffey%2C+Megan+H%3BHermann%2C+Karl+A%3BSelle%2C+Anthony+R%3BAugustine%2C+Scott%3BGoodman%2C+Iris+A%3BPedersen%2C+Joel%3BBolgrien%2C+David%3BViger%2C+J+Max%3BChiang%2C+Dean%3BLin%2C+Cindy+J%3BZhong%2C+Yehong%3BBaker%2C+Joan%3Bvan+Remortel%2C+Rick+D&rft.aulast=Jones&rft.aufirst=K&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-2959/ LA - English DB - GeoRef N1 - Conference title - Fourth symposium on the Environment monitoring and assessment program N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 60 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquatic environment; degradation; ecology; EMAP; environmental management; Environmental Monitoring and Assessment Program; estuarine environment; forests; hydrology; land management; land use; landscapes; monitoring; nutrients; pollution; programs; protection; regional planning; research; riparian environment; risk assessment; rivers and streams; United States; vegetation; water quality; watersheds; Western U.S. ER - TY - JOUR T1 - Treatment of inorganic contaminants using permeable reactive barriers AN - 51194353; 2001-011000 AB - Permeable reactive barriers are an emerging alternative to traditional pump and treat systems for groundwater remediation. This technique has progressed rapidly over the past decade from laboratory bench-scale studies to full-scale implementation. Laboratory studies indicate the potential for treatment of a large number of inorganic contaminants, including As, Cd, Cr, Cu, Hg, Fe, Mn, Mo, Ni, Pb, Se, Tc, U, V, NO (sub 3) , PO (sub 4) and SO (sub 4) . Small-scale field studies have demonstrated treatment of Cd, Cr, Cu, Fe, Ni, Pb, NO (sub 3) , PO (sub 4) and SO (sub 4) . Permeable reactive barriers composed of zero-valent iron have been used in full-scale installations for the treatment of Cr, U, and Tc. Solid-phase organic carbon in the form of municipal compost has been used to remove dissolved constituents associated with acid-mine drainage, including SO (sub 4) , Fe, Ni, Co and Zn. Dissolved nutrients, including NO (sub 3) and PO (sub 4) , have been removed from domestic septic-system effluent and agricultural drainage. JF - Journal of Contaminant Hydrology AU - Blowes, David W AU - Ptacek, Carol J AU - Benner, Shawn G AU - McRae, Che W T AU - Bennett, Timothy A AU - Puls, Robert W A2 - Teutsch, Georg A2 - Grathwohl, Peter Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 123 EP - 137 PB - Elsevier, Amsterdam VL - 45 IS - 1-2 SN - 0169-7722, 0169-7722 KW - agricultural waste KW - contaminant plumes KW - remediation KW - ground water KW - chemical reactions KW - decontamination KW - water treatment KW - pump-and-treat KW - nitrate ion KW - heavy metals KW - disposal barriers KW - chromium KW - concentration KW - sulfate ion KW - acid mine drainage KW - drainage KW - pollution KW - adsorption KW - aquifers KW - nutrients KW - phosphate ion KW - dissolved materials KW - metals KW - waste disposal KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51194353?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=Treatment+of+inorganic+contaminants+using+permeable+reactive+barriers&rft.au=Blowes%2C+David+W%3BPtacek%2C+Carol+J%3BBenner%2C+Shawn+G%3BMcRae%2C+Che+W+T%3BBennett%2C+Timothy+A%3BPuls%2C+Robert+W&rft.aulast=Blowes&rft.aufirst=David&rft.date=2000-09-01&rft.volume=45&rft.issue=1-2&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01697722 LA - English DB - GeoRef N1 - Conference title - IAH Groundwater quality; GQ98 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2001-01-01 N1 - Number of references - 38 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - acid mine drainage; adsorption; agricultural waste; aquifers; chemical reactions; chromium; concentration; contaminant plumes; decontamination; disposal barriers; dissolved materials; drainage; ground water; heavy metals; metals; nitrate ion; nutrients; permeability; phosphate ion; pollution; pump-and-treat; remediation; sulfate ion; waste disposal; water treatment ER - TY - JOUR T1 - Hydrothermal indicators in streams and springs at Mount Rainier AN - 51143372; 2002-008154 JF - Washington Geology AU - Frank, David A2 - Roloff, Jaretta M. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 24 PB - Washington Department of Natural Resources, Division of Geology and Earth Resources, Olympia, WA VL - 28 IS - 1-2 SN - 1058-2134, 1058-2134 KW - United States KW - Washington KW - andesites KW - volcanic rocks KW - Pierce County Washington KW - igneous rocks KW - surface water KW - metasomatism KW - thermal waters KW - hydrothermal conditions KW - ground water KW - Cascade Range KW - Tahoma Glacier KW - mineral composition KW - Mount Rainier KW - springs KW - hydrothermal alteration KW - Paradise Glacier KW - Winthrop Glacier KW - hot springs KW - chemical composition KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51143372?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Washington+Geology&rft.atitle=Hydrothermal+indicators+in+streams+and+springs+at+Mount+Rainier&rft.au=Frank%2C+David&rft.aulast=Frank&rft.aufirst=David&rft.date=2000-09-01&rft.volume=28&rft.issue=1-2&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Washington+Geology&rft.issn=10582134&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Northwest Scientific Association 1999 annual meeting and Mount Rainier National Park 100th anniversary geology symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - WA N1 - Last updated - 2012-06-07 N1 - CODEN - WGNLAA N1 - SubjectsTermNotLitGenreText - andesites; Cascade Range; chemical composition; ground water; hot springs; hydrothermal alteration; hydrothermal conditions; igneous rocks; metasomatism; mineral composition; Mount Rainier; Paradise Glacier; Pierce County Washington; springs; surface water; Tahoma Glacier; thermal waters; United States; volcanic rocks; Washington; Winthrop Glacier ER - TY - JOUR T1 - Real-Time and Integrated Measurement of Potential Human Exposure to Particle-Bound Polycyclic Aromatic Hydrocarbons (PAHs) from Aircraft Exhaust AN - 17865031; 5108003 AB - We used real-time monitors and low-volume air samplers to measure the potential human exposure to airborne polycyclic aromatic hydrocarbon (PAH) concentrations during various flight-related and ground-support activities of C-130H aircraft at an Air National Guard base. We used three types of photoelectric aerosol sensors (PASs) to measure real-time concentrations of particle-bound PAHs in a break room, downwind from a C-130H aircraft during a four-engine run-up test, in a maintenance hangar, in a C-130H aircraft cargo bay during cargo-drop training, downwind from aerospace ground equipment (AGE), and in a C-130H aircraft cargo bay during engine running on/off (ERO) loading and backup exercises. Two low-volume air samplers were collocated with the real-time monitors for all monitoring events except those in the break room and during in-flight activities. Total PAH concentrations in the integrated-air samples followed a general trend: downwind from two AGE units > ERO-loading exercise > four-engine run-up test > maintenance hangar during taxi and takeoff > background measurements in maintenance hangar. Each PAH profile was dominated by naphthalene, the alkyl-substituted naphthalenes, and other PAHs expected to be in the vapor phase. We also found particle-bound PAHs, such as fluoranthene, pyrene, and benzo[a]pyrene in some of the sample extracts. During flight-related exercises, total PAH concentrations in the integrated-air samples were 10-25 times higher than those commonly found in ambient air. Real-time monitor mean responses generally followed the integrated-air sample trends. These monitors provided a semiquantitative temporal profile of ambient PAH concentrations and showed that PAH concentrations can fluctuate rapidly from a baseline level 4,000 ng/m super(3) during flight-related activities. Small handheld models of the PAS monitors exhibited potential for assessing incidental personal exposure to particle-bound PAHs in engine exhaust and for serving as a real-time dosimeter to indicate when respiratory protection is advisable. JF - Environmental Health Perspectives AU - Childers, J W AU - Witherspoon, CL AU - Smith, L B AU - Pleil, J D AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory, MD-44, Research Triangle Park, NC 27711-2055, USA, pleil.joachim@epa.gov Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 853 EP - 862 VL - 108 IS - 9 SN - 0091-6765, 0091-6765 KW - man KW - benzo(a)pyrene KW - fluoranthene KW - pyrene KW - Health & Safety Science Abstracts; Pollution Abstracts; Toxicology Abstracts KW - Pollution monitoring KW - Pyrene KW - Aircraft KW - Air sampling KW - Occupational exposure KW - Exhaust emissions KW - Fluoranthene KW - Polycyclic aromatic hydrocarbons KW - Dosimetry KW - Maintenance KW - Exhausts KW - Air pollution KW - Benzo(a)pyrene KW - X 24190:Polycyclic hydrocarbons KW - H 1000:Occupational Safety and Health KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17865031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Health+Perspectives&rft.atitle=Real-Time+and+Integrated+Measurement+of+Potential+Human+Exposure+to+Particle-Bound+Polycyclic+Aromatic+Hydrocarbons+%28PAHs%29+from+Aircraft+Exhaust&rft.au=Childers%2C+J+W%3BWitherspoon%2C+CL%3BSmith%2C+L+B%3BPleil%2C+J+D&rft.aulast=Childers&rft.aufirst=J&rft.date=2000-09-01&rft.volume=108&rft.issue=9&rft.spage=853&rft.isbn=&rft.btitle=&rft.title=Environmental+Health+Perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Air sampling; Polycyclic aromatic hydrocarbons; Pollution monitoring; Aircraft; Exhaust emissions; Maintenance; Occupational exposure; Exhausts; Air pollution; Dosimetry; Benzo(a)pyrene; Pyrene; Fluoranthene ER - TY - JOUR T1 - Cancer Mortality in Four Northern Wheat-Producing States AN - 17863037; 5108006 AB - Chlorophenoxy herbicides are used both in cereal grain agriculture and in nonagricultural settings such as right-of-ways, lawns, and parks. Minnesota, North Dakota, South Dakota, and Montana grow most of the spring and durum wheat produced in the United States. More than 90% of spring and durum wheat is treated with chlorophenoxy herbicides, in contrast to treatment of approximately 30% of winter wheat. In this ecologic study I used wheat acreage as a surrogate for exposure to chlorophenoxy herbicides. I investigated the association of chlorophenoxy herbicides with cancer mortality during 1980-1989 for selected counties based on level of agriculture ( greater than or equal to 20%) and rural population ( greater than or equal to 50%). Age-standardized cancer mortality rates were determined for grouped counties based on tertiles of wheat acreage per county or for individual counties for frequently occurring cancers. The cancer sites that showed positive trends of increasing cancer mortality with increasing wheat acreage were esophagus, stomach, rectum, pancreas, larynx, prostate, kidney and ureter, brain, thyroid, bone, and all cancers (men) and oral cavity and tongue, esophagus, stomach, liver and gall bladder and bile ducts, pancreas, cervix, ovary, bladder, and other urinary organs, and all cancers (women). Rare cancers in men and women and cancers in boys and girls were studied by comparing counties above and below the median of wheat acreage per county. There was increased mortality for cancer of the nose and eye in both men and women, brain and leukemia in both boys and girls, and all cancers in boys. These results suggest an association between cancer mortality and wheat acreage in counties of these four states. JF - Environmental Health Perspectives AU - Schreinemachers, D M AD - Epidemiology and Biomarkers Branch, Human Studies Division, NHEERL, U.S. EPA, MD 58A, Research Triangle Park, NC 27711, USA, schreinemachers.dina@epa.gov Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 873 EP - 881 VL - 108 IS - 9 SN - 0091-6765, 0091-6765 KW - USA, Minnesota KW - USA, North Dakota KW - USA, South Dakota KW - USA, Montana KW - Triticum aestivum KW - chlorophenoxy herbicides KW - Health & Safety Science Abstracts; Pollution Abstracts; Toxicology Abstracts KW - Mortality KW - Herbicides KW - Agrochemicals KW - Cancer KW - Epidemiology KW - Pesticides KW - X 24132:Chronic exposure KW - H 12000:Epidemiology and Public Health KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17863037?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Health+Perspectives&rft.atitle=Cancer+Mortality+in+Four+Northern+Wheat-Producing+States&rft.au=Schreinemachers%2C+D+M&rft.aulast=Schreinemachers&rft.aufirst=D&rft.date=2000-09-01&rft.volume=108&rft.issue=9&rft.spage=873&rft.isbn=&rft.btitle=&rft.title=Environmental+Health+Perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Triticum aestivum; Cancer; Agrochemicals; Herbicides; Mortality; Epidemiology; Pesticides ER - TY - JOUR T1 - Evaluation of nanofiltration pretreatments for flux loss control AN - 17748305; 4810226 AB - The loss of membrane flux due to fouling is a major impediment to the development of membrane processes for use in drinking water treatment. The objective of this work was to evaluate fouling in nanofiltration (NF) pilot systems fed conventionally-treated (coagulation/sedimentation/filtration) Ohio River water (CT-ORW) with various additional levels of pretreatment. The chosen additional pretreatments were intended to produce waters with varying biological-fouling potential. Five parallel membranes were fed CT-ORW, ozonated CT-ORW, ozonated/biofiltered CT-ORW, CT-ORW reduced to 7 degree C, and chloraminated CT-ORW. All systems showed significant flux decline indicating that methods beyond those needed for just biogrowth control are required for NF systems treating conventionally-treated surface waters. The NF systems fed ozonated, ozonated/biofiltered, and untreated CT-ORW had the least amount of flux decline over the course of the study; however, they had significant amounts of biological growth. Fouling in these systems was attributed to the deposition of extracellular material (polysaccharides) in the cake layer, either from the biogrowth on the membrane or carryover from the pretreatment. The low-temperature system had greater flux decline, but it had lower biogrowth than the ozonated, and ozonated/biofiltered and untreated CT-ORW systems. Although lower in biogrowth, the deposited organic material in the low-temperature system still showed a strong biological signature (polysaccharides and aminosugars). The chloraminated system had the greatest flux decline, but the least amount of biogrowth. The organic material deposited in the chloraminated system showed a high level of proteinaceous character. JF - Desalination AU - Speth, T F AU - Gusses, A M AU - Summers, R S AD - US Environmental Protection Agency, 26 W. Martin Luther King Drive, Cincinnati, OH 45268, USA, Speth.Thomas@EPA.GOV Y1 - 2000/09/01/ PY - 2000 DA - 2000 Sep 01 SP - 31 EP - 44 VL - 130 IS - 1 SN - 0011-9164, 0011-9164 KW - nanofiltration KW - Water Resources Abstracts KW - Biofouling KW - Pretreatment of Water KW - Biofiltration KW - On-site Tests KW - Performance Evaluation KW - Drinking Water KW - Membrane Processes KW - Pilot Plants KW - Wastewater Treatment KW - Ozonation KW - SW 3060:Water treatment and distribution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17748305?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Desalination&rft.atitle=Evaluation+of+nanofiltration+pretreatments+for+flux+loss+control&rft.au=Speth%2C+T+F%3BGusses%2C+A+M%3BSummers%2C+R+S&rft.aulast=Speth&rft.aufirst=T&rft.date=2000-09-01&rft.volume=130&rft.issue=1&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Desalination&rft.issn=00119164&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Biofiltration; Pretreatment of Water; Biofouling; Performance Evaluation; On-site Tests; Drinking Water; Membrane Processes; Pilot Plants; Wastewater Treatment; Ozonation ER - TY - JOUR T1 - Classification strengths of ecoregions, catchments, and geographic clusters for aquatic vertebrates in Oregon AN - 17747545; 4805047 AB - The usefulness of ecoregions and catchments (hydrologic units) as bases for classifying aquatic vertebrate assemblages in western Oregon was compared using samples collected by electro-fishing from 137 wadeable stream sites distributed evenly throughout the region. The classification strengths of these regionalizations were also compared with neutral-model classifications that were based either on intersite proximities in geographic distance or on intersite similarities in the sampled vertebrate assemblages. The strength of each classification was assessed by the extent to which average within-class assemblage similarities exceeded the average similarity between classes. Mean similarity dendrograms were used as a concise graphical comparison of between- and within-class similarities for alternative classifications, whether they were specified a priori or constructed by clustering. For each a priori classification, a permutation test of the no class structure hypothesis was performed. Classification strengths were assessed using the Sorenson-Dice (presence/absence) and Bray-Curtis (relative abundance) similarity measures, applied to both species-level and family-level assemblage characterizations, as well as for the Bray-Curtis measure applied to a set of 5 assemblage metrics that were designed to reflect stream impairment. For all 5 measures of assemblage similarity, ecoregions had higher classification strengths than did large catchments, and large catchments had about the same strength as a stream-order classification. A catchment classification with 1 of the 3 catchments split into 2 ecoregions separated assemblages as strongly as ecoregions alone. A neutral-model classification based solely on geographic site proximity classified assemblages with about the same strength as ecoregions. Another neutral-model classification of sites, based solely on their sampled assemblages, was at least twice as strong as any of the geographic classifications. Intermediate strength was seen in site groupings derived from a composite measure of between-site assemblage and geographic dissimilarities. Our results suggest that ecoregions and large catchments do indeed have utility for classifying stream vertebrate assemblages. However, much of their classification strength may be a result of spatial autocorrelation effects, rather than ecological factors that determine their particular boundaries. Our similarity analyses also suggest that geographic partitions can be expected to account for only a minor portion of the total variation seen in stream vertebrate assemblages across a large region. JF - Journal of the North American Benthological Society AU - Van Sickle, J AU - Hughes, R M AD - US Environmental Protection Agency, Western Ecology Division, National Health and Environmental Effects Research Laboratory, 200 SW 35th St., Corvallis, Oregon 97333, USA, johnv@mail.cor.epa.gov Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 370 EP - 384 VL - 19 IS - 3 SN - 0887-3593, 0887-3593 KW - USA, Oregon KW - ecoregion KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Rivers KW - Catchment area KW - Classification systems KW - Biogeography KW - Ecological distribution KW - Freshwater KW - Streams KW - Inland water environment KW - Aquatic environment KW - Community composition KW - Classification KW - Catchment areas KW - Vertebrata KW - Q1 08382:Ecological techniques and apparatus KW - D 04310:Freshwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17747545?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+North+American+Benthological+Society&rft.atitle=Classification+strengths+of+ecoregions%2C+catchments%2C+and+geographic+clusters+for+aquatic+vertebrates+in+Oregon&rft.au=Van+Sickle%2C+J%3BHughes%2C+R+M&rft.aulast=Van+Sickle&rft.aufirst=J&rft.date=2000-09-01&rft.volume=19&rft.issue=3&rft.spage=370&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+North+American+Benthological+Society&rft.issn=08873593&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Classification systems; Catchment area; Rivers; Community composition; Biogeography; Ecological distribution; Inland water environment; Classification; Catchment areas; Streams; Aquatic environment; Vertebrata; Freshwater ER - TY - JOUR T1 - Potential for delineating indicator-defined regions for streams in Victoria, Australia AN - 17744044; 4805081 AB - The objective of this study is to determine if data collected from extant monitoring programs can be separated into general regional groups, using data sets from the state of Victoria, Australia. Although some attempts will be made to relate any defined regions to other regional environmental features, our primary focus is on whether the data have an intrinsic regional patterning. Because this is a preliminary attempt to distinguish regions using an alternative method to a priori regionalization, the regions herein are presented only for evaluating the potential of the method. Neither the regions nor their names in this paper are being proposed as permanent tools. JF - Journal of the North American Benthological Society AU - Newall, P AU - Wells, F AD - Cooperative Research Centre for Freshwater Ecology, Environment Protection Authority of Victoria, GPO Box 4395QQ, Melbourne, Victoria 3001, Australia, peter.newall@epa.vic.gov.au Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 557 EP - 571 VL - 19 IS - 3 SN - 0887-3593, 0887-3593 KW - Australia, Victoria KW - ecoregions KW - Entomology Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Environmental monitoring KW - Rivers KW - Biota KW - Community composition KW - Freshwater KW - Streams KW - Regional variations KW - Indicator species KW - D 04310:Freshwater KW - Q1 08463:Habitat community studies KW - Z 05210:Aquatic entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17744044?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+North+American+Benthological+Society&rft.atitle=Potential+for+delineating+indicator-defined+regions+for+streams+in+Victoria%2C+Australia&rft.au=Newall%2C+P%3BWells%2C+F&rft.aulast=Newall&rft.aufirst=P&rft.date=2000-09-01&rft.volume=19&rft.issue=3&rft.spage=557&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+North+American+Benthological+Society&rft.issn=08873593&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Environmental monitoring; Community composition; Biota; Regional variations; Indicator species; Streams; Freshwater ER - TY - JOUR T1 - Comparison of geographic classification schemes for Mid-Atlantic stream fish assemblages AN - 17734595; 4805048 AB - Understanding the influence of geographic factors in structuring fish assemblages is crucial to developing a comprehensive assessment of stream conditions. We compared the classification strengths (CS) of geographic groups (ecoregions and catchments), stream order, and groups based on cluster analysis of fish assemblages data from 200 wadeable streams in the Mid-Atlantic Highlands. We 1st calculated intersite similarity indices (Bray-Curtis on relative abundance; Dice-Soerensen on presence/absence), then compared overall mean within-group similarities with among-group similarities. We used subsets of the data to test CS from: 1) 31 reference sites defined on chemistry and habitat criteria, and 2) 21 samples from 8 sites that had been resampled within and between years to estimate the maximum similarity expected for any of the classifications. We assessed the strength of each classification by determining the degree to which was greater than. Sites classified by taxonomic clusters had higher CS than did sites grouped by stream order, US Geological Survey 4-digit Hydrologic Unit Code (HUC) catchments, and ecoregions. Except for taxonomic clusters, the CS values were greater when all sites were used in the analysis than when only reference sites were used. The mean similarities for the revisits were 2 to 3 times greater than for all other classifications. We used nonmetric multidimensional scaling as an alternative approach to detecting geographic structure in the data. We found little separation of ecoregion or catchment groups except at very broad spatial scales. The relatively weak CS of any of the geographic groups suggests that the interaction of complex zoogeographic patterns and a long history of human disturbance has masked any fine-scale structure of regional fish assemblages. JF - Journal of the North American Benthological Society AU - McCormick, F H AU - Peck, D V AU - Larsen, D P AD - US Environmental Protection Agency, National Exposure Research Laboratory, 26 W Martin Luther King Dr., Cincinnati, Ohio 45268 USA, mccormick.frank@epa.gov Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 385 EP - 404 VL - 19 IS - 3 SN - 0887-3593, 0887-3593 KW - USA KW - ecoregion KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Classification systems KW - Rivers KW - Catchment area KW - Biogeography KW - USA, Mid-Atlantic Region KW - Ecological distribution KW - Anthropogenic factors KW - Man-induced effects KW - Freshwater KW - Freshwater fish KW - Habitat KW - Streams KW - Pisces KW - Community composition KW - Classification KW - Q1 08382:Ecological techniques and apparatus KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17734595?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+North+American+Benthological+Society&rft.atitle=Comparison+of+geographic+classification+schemes+for+Mid-Atlantic+stream+fish+assemblages&rft.au=McCormick%2C+F+H%3BPeck%2C+D+V%3BLarsen%2C+D+P&rft.aulast=McCormick&rft.aufirst=F&rft.date=2000-09-01&rft.volume=19&rft.issue=3&rft.spage=385&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+North+American+Benthological+Society&rft.issn=08873593&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Catchment area; Rivers; Classification systems; Community composition; Biogeography; Ecological distribution; Anthropogenic factors; Man-induced effects; Habitat; Freshwater fish; Classification; Streams; Pisces; USA, Mid-Atlantic Region; Freshwater ER - TY - JOUR T1 - PCBs, Thyroid Hormones, and Ototoxicity in Rats: Cross-Fostering Experiments Demonstrate the Impact of Postnatal Lactation Exposure AN - 17733563; 4796617 AB - Previous research has demonstrated the sensitivity of the developing rat to the hypothyroxinemic and ototoxic effects of perinatal exposure to Aroclor 1254 (A1254). We tested the hypothesis that postnatal exposure via lactation is the major cause of the ototoxicity by cross fostering animals at birth. Primiparous rats (22-24/dose) received 0 or 6 mg/kg A1254 (po in corn oil) from gestation day (GD) 6 to postnatal day (PND) 21. On the day of birth, half of the treated litters and half of the control litters were cross-fostered, resulting in the following groups: Ctrl/Ctrl (controls); A1254/A1254 (perinatal exposure); A1254/Ctrl (prenatal exposure only); and Ctrl/A1254 (postnatal exposure only). We assessed offspring at a number of ages for: serum thyroid hormone concentrations, liver and brain concentrations of PCBs, body weight, mortality, age of eye opening, auditory startle amplitudes, and auditory thresholds for 1 kHz and 40 kHz tones. Circulating thyroxine (T sub(4)) concentrations were sharply reduced at GD 21 in the A1254-exposed group, and on PND 3, 7, 14, and 21 in the A1254/A1254 and the Ctrl/A1254 groups. Smaller decreases in T sub(4) were observed in the A1254/Ctrl group on PND 3, 7, and 14. PCB concentrations in the liver on PND 21 were sharply elevated in the A1254/A1254 and Ctrl/A1254 groups. Much smaller increases were seen in the A1254/Ctrl group. Age of eye-opening and startle amplitudes were unaffected by treatment. A1254 exposure caused permanent hearing deficits (20 dB increase) at the low frequency (1 kHz) in the A1254/A1254 and Ctrl/A1254 groups. The present findings demonstrated that the critical period for the ototoxicity of developmental A1254 exposure is within the first few postnatal weeks in the rat. This effect is consistent with the greater degree of postnatal hypothyroxinemia resulting from the greater magnitude of exposure that occurs postnatally via lactation. JF - Toxicological Sciences AU - Crofton, K M AU - Kodavanti, PRS AU - Derr-Yellin, E C AU - Casey, A C AU - Kehn, L S AD - Neurotoxicology Division, MD-74B, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 131 EP - 140 VL - 57 IS - 1 SN - 1096-6080, 1096-6080 KW - rats KW - Toxicology Abstracts KW - Ototoxicity KW - Thyroid hormone KW - PCB KW - Lactation KW - X 24151:Acute exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17733563?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=PCBs%2C+Thyroid+Hormones%2C+and+Ototoxicity+in+Rats%3A+Cross-Fostering+Experiments+Demonstrate+the+Impact+of+Postnatal+Lactation+Exposure&rft.au=Crofton%2C+K+M%3BKodavanti%2C+PRS%3BDerr-Yellin%2C+E+C%3BCasey%2C+A+C%3BKehn%2C+L+S&rft.aulast=Crofton&rft.aufirst=K&rft.date=2000-09-01&rft.volume=57&rft.issue=1&rft.spage=131&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - PCB; Thyroid hormone; Lactation; Ototoxicity ER - TY - JOUR T1 - Spatial Learning and Long-Term Potentiation in the Dentate Gyrus of the Hippocampus in Animals Developmentally Exposed to Aroclor 1254 AN - 17733487; 4796614 AB - Developmental exposure to polychlorinated biphenyls (PCBs) has been associated with cognitive deficits in children. Rodent studies have revealed impairments in learning tasks involving the hippocampus. The present study sought to examine hippocampal synaptic plasticity in the dentate gyrus and spatial learning in animals exposed to PCBs early in development. Pregnant Long-Evans rats were administered either corn oil (control) or 6 mg/kg/day of a commercial PCB mixture, Aroclor 1254 (A1254) by gavage from gestational day (GD) 6 until pups were weaned on postnatal day (PND) 21. Spatial learning was assessed at 3 months of age in male and female offspring using the Morris water maze. Latency to find a hidden platform that remained in the same position over 20 days of testing did not differ between control and PCB-exposed groups. Neither were group differences evident in a repeated acquisition version of the task in which the platform remained in the same position over the 2 daily trials but was moved to a new spatial location each day. Male littermates of animals in the behavioral study were tested electrophysiologically at 5-7 months of age. Field potentials evoked by perforant path stimulation were recorded in the dentate gyrus under urethane anesthesia. Input/output (I/O) functions were assessed by averaging the response evoked in the dentate gyrus to stimulus pulses delivered to the perforant path in an ascending intensity series. Long-term potentiation (LTP) was induced by delivering a series of brief, high-frequency train bursts to the perforant path at increasing stimulus intensities, and I/O functions were reassessed 1 h later. No differences in baseline synaptic population spike (PS) and excitatory postsynaptic potential (EPSP) slope amplitudes were discerned between the groups prior to train delivery. Post-train I/O functions, however, revealed a decrement in the magnitude of evoked LTP in PCB-exposed animals, and an increase in the train intensity required to induce LTP. The observed dissociation between impaired hippocampal plasticity, in the absence of a detectable deficit in performance of a hippocampal-dependent task, may be due to task complexity, the maintenance of some degree of plasticity in the PCB-exposed animals, or the possibility that intact dentate gyrus LTP may not be requisite for water-maze learning. JF - Toxicological Sciences AU - Gilbert, ME AU - Mundy, W R AU - Crofton, K M AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 102 EP - 111 VL - 57 IS - 1 SN - 1096-6080, 1096-6080 KW - rats KW - long-term potentiation KW - CSA Neurosciences Abstracts; Toxicology Abstracts KW - Aroclor KW - Hippocampus KW - Long-term potentiation KW - Learning behavior KW - Dentate gyrus KW - PCB KW - X 24152:Chronic exposure KW - N3 11139:Toxicological and psychoactive drug correlates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17733487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Spatial+Learning+and+Long-Term+Potentiation+in+the+Dentate+Gyrus+of+the+Hippocampus+in+Animals+Developmentally+Exposed+to+Aroclor+1254&rft.au=Gilbert%2C+ME%3BMundy%2C+W+R%3BCrofton%2C+K+M&rft.aulast=Gilbert&rft.aufirst=ME&rft.date=2000-09-01&rft.volume=57&rft.issue=1&rft.spage=102&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - PCB; Dentate gyrus; Learning behavior; Hippocampus; Aroclor; Long-term potentiation ER - TY - JOUR T1 - Biological responses of the sea urchin, Arbacia punctulata, to lead contamination for an estuarine ecological risk assessment AN - 17732354; 4791008 AB - An estuarine ecological risk assessment for the Portsmouth Naval Shipyard (PNS) Kittery, ME, was conducted utilizing the U.S. EPA's Framework for Ecological Risk Assessment (ERA). As part of the analysis phase of the ERA, laboratory studies were conducted to develop quantitative exposure-response relationships for lead (Pb), a key contaminant of concern for PNS, in order to evaluate the role of Pb in the ecological stress observed near PNS, and to estimate the probability of ecological risk associated with Pb contamination at the site. Biological effects of exposure to Pb via sediment or diet were evaluated using several life stages of the sea urchin, Arbacia punctulata. This strategy was employed because echinoderm species, including A. punctulata, are amenable to laboratory testing and have been used frequently to assess the toxicity of estuarine waters and sediments. In addition, life stage-specific biological effects could be compared and integrated into projections of population-level responses to Pb. Results indicated that adult sea urchins accumulated Pb in direct proportion to exposure medium Pb concentration, whether exposure occurred via sediment or diet. High Pb concentrations reduced survival and gamete production in females, but had no effect on the viability of produced gametes. Aqueous Pb exposure concentrations that produced adverse effects on adult sea urchin survival and reproduction were also directly toxic to early life stages. In addition to their utility for this ERA, these results have applicability for the prediction of biological effects or the retrospective analysis of causal relationships at other estuarine sites. JF - Journal of Aquatic Ecosystem Stress and Recovery AU - Nacci, D AU - Serbst, J AU - Gleason, T R AU - Cayula, S AU - Thursby, G AU - Munns, WR Jr AU - Johnston, R K AD - US Environmental Protection Agency, Atlantic Ecology Division, Narragansett, RI 02882, USA Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 187 EP - 199 VL - 7 IS - 3 SN - 1386-1980, 1386-1980 KW - Arbacia punctulata KW - Portsmouth Naval Shipyard KW - Purple-spined sea urchin KW - USA, Maine KW - developmental stages KW - shipyards KW - Water Resources Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts; Pollution Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Risk assessment KW - Estuarine organisms KW - Gametes KW - Estuaries KW - Brackish KW - Developmental stages KW - Pollution effects KW - Toxicity KW - Sexual cells KW - Toxicity tests KW - Lead KW - Risks KW - Shipyards KW - Bioaccumulation KW - ANW, USA, Maine, Kittery KW - Population status KW - Q1 08244:Reproduction and development KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - D 04803:Pollution effects KW - P 1000:MARINE POLLUTION KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17732354?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Aquatic+Ecosystem+Stress+and+Recovery&rft.atitle=Biological+responses+of+the+sea+urchin%2C+Arbacia+punctulata%2C+to+lead+contamination+for+an+estuarine+ecological+risk+assessment&rft.au=Nacci%2C+D%3BSerbst%2C+J%3BGleason%2C+T+R%3BCayula%2C+S%3BThursby%2C+G%3BMunns%2C+WR+Jr%3BJohnston%2C+R+K&rft.aulast=Nacci&rft.aufirst=D&rft.date=2000-09-01&rft.volume=7&rft.issue=3&rft.spage=187&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aquatic+Ecosystem+Stress+and+Recovery&rft.issn=13861980&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Estuarine organisms; Gametes; Pollution effects; Developmental stages; Sexual cells; Toxicity tests; Shipyards; Risks; Lead; Risk assessment; Bioaccumulation; Estuaries; Population status; Toxicity; ANW, USA, Maine, Kittery; Brackish ER - TY - JOUR T1 - Projecting population-level response of purple sea urchins to lead contamination for an estuarine ecological risk assessment AN - 17732221; 4791007 AB - As part of an ecological risk assessment case study at the Portsmouth Naval Shipyard (PNS), Kittery, Maine, USA, the population level effects of lead exposure to purple sea urchin, Arbacia punctulata, were investigated using a stage-classified matrix population model. The model divided the life history of A. punctulata into five classes, incorporating both, the developmental stages of this species and the endpoints from a laboratory bioassay. Finite population growth rate ( lambda ) was the metric relating population level impact to lead exposure. An inverse relationship was observed between lead tissue residues in A. punctulata and lambda . Bioassay treatments which resulted in significant impacts on fertilization success and zygote viability did not translate into significant effects on lambda , unless those treatments also negatively impacted adult survival. These results paralleled the elasticity (relative sensitivity) analysis of the model, which indicated that lambda was most sensitive to adult and subadult survival and was relatively insensitive to fecundity, fertilization success, or zygote survival. Model results indicated that the environmental lead levels observed at PNS should not pose significant ecological risk to sea urchin populations. Additionally, the model results indicated that impacts to the early life stages routinely used in toxicity testing do not necessarily translate directly into impacts at the population level. JF - Journal of Aquatic Ecosystem Stress and Recovery AU - Gleason, T R AU - Munns, W R AU - Nacci, DE AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 177 EP - 185 VL - 7 IS - 3 SN - 1386-1980, 1386-1980 KW - Arbacia punctulata KW - Portsmouth Naval Shipyard KW - Purple-spined sea urchin KW - USA, Maine KW - developmental stages KW - shipyards KW - Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts; Pollution Abstracts; Risk Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Risk assessment KW - Population Dynamics KW - Pollution effects KW - Survival KW - Population dynamics KW - Toxicity tests KW - Risks KW - Lead KW - Models KW - Natural populations KW - Air Pollution Effects KW - Estuaries KW - Brackish KW - Developmental stages KW - Toxicity KW - Shipyards KW - Bioaccumulation KW - ANW, USA, Maine, Kittery KW - Population status KW - R2 23040:Biological KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - D 04803:Pollution effects KW - P 1000:MARINE POLLUTION KW - Q5 08504:Effects on organisms KW - Q1 08442:Population dynamics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17732221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Aquatic+Ecosystem+Stress+and+Recovery&rft.atitle=Projecting+population-level+response+of+purple+sea+urchins+to+lead+contamination+for+an+estuarine+ecological+risk+assessment&rft.au=Gleason%2C+T+R%3BMunns%2C+W+R%3BNacci%2C+DE&rft.aulast=Gleason&rft.aufirst=T&rft.date=2000-09-01&rft.volume=7&rft.issue=3&rft.spage=177&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aquatic+Ecosystem+Stress+and+Recovery&rft.issn=13861980&rft_id=info:doi/10.1023%2FA%3A1009936126191 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Natural populations; Developmental stages; Survival; Pollution effects; Population dynamics; Toxicity tests; Shipyards; Lead; Risks; Risk assessment; Bioaccumulation; Estuaries; Population status; Models; Toxicity; Air Pollution Effects; Population Dynamics; ANW, USA, Maine, Kittery; Brackish DO - http://dx.doi.org/10.1023/A:1009936126191 ER - TY - JOUR T1 - Extreme Short-Range Variability in VOC-Contaminated Soils AN - 17726148; 4796213 AB - To accurately characterize volatile organic compound (VOC) distribution in contaminated soils for the purpose of ascertaining the need for site remediation, horizontal and vertical concentration fluctuations must be taken into account when designing the sampling program. Soils at two Superfund sites were collected to examine VOC concentration and soil property variability over extremely short distances ( less than or equal to 15 cm). Differences in VOC concentrations between the upper and lower core sections (15 cm apart) were generally on the same order (1 to 4 times different) as the differences found for the TOC, sand, and clay contents; however, several notably larger variations in VOC concentrations were found. Relative percent differences (RPDs) up to 161, 96, 117, and 191% were found for TOC, sand content, clay content, and VOC concentrations between upper and lower core sections, respectively. These elevated RPDs correspond to maximum concentration differences between upper and lower core sections of 25.5 and 72.5%, 5.8 and 22.0%, 0.29 and 2.71%, and 78 and 3371 ng/g for TOC, sand content, clay content, and VOC concentrations, respectively. The large differences in soil properties and VOC concentrations that can occur over extremely short distances must be taken into account during site characterization. Without knowing the magnitude of the extreme short-range variability, erroneous interpretations of contaminant concentrations and distributions can lead to costly remediation when it is not necessary (i.e., false positives) or the leaving behind of a significant threat to human health and the environment when not detected (i.e., false negatives). JF - Environmental Science & Technology AU - Schumacher, BA AU - Minnich, M M AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory, Environmental Sciences Division-Las Vegas, Characterization and Monitoring Branch, P.O. Box 93478, Las Vegas, NV 89193, USA, schumacher.brian@epa.gov Y1 - 2000/09/01/ PY - 2000 DA - 2000 Sep 01 SP - 3611 EP - 3616 VL - 34 IS - 17 SN - 0013-936X, 0013-936X KW - Pollution Abstracts KW - Clay KW - Superfund KW - Soil contamination KW - Sand KW - Total organic carbon KW - Remediation KW - Volatile organic compounds KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17726148?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Extreme+Short-Range+Variability+in+VOC-Contaminated+Soils&rft.au=Schumacher%2C+BA%3BMinnich%2C+M+M&rft.aulast=Schumacher&rft.aufirst=BA&rft.date=2000-09-01&rft.volume=34&rft.issue=17&rft.spage=3611&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes0008719 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Volatile organic compounds; Soil contamination; Superfund; Total organic carbon; Sand; Clay; Remediation DO - http://dx.doi.org/10.1021/es0008719 ER - TY - CONF T1 - Designing environmental databases for statistical analyses AN - 17726035; 4793917 AB - The Environmental Monitoring and Assessment Program (EMAP) collects data that are used to statistically assess the environmental condition of large geographic regions. These data are then posted on the EMAP web site so that anyone can use them. Databases used for the statistical analyses, "analytical" databases, differ in design from the "general-use" databases used by a secondary audience. Their scope is usually restricted in time, in geographic extent, and in type and content of data, often being limited to a single scientific discipline. Their structure may be more horizontal than vertical, so that statistical programs can import the data easily. Their design is strongly influenced by the nature of the scientific analysis because the goal is to create a good computing environment for that analysis. We illustrate these aspects of design with an analytical database for estuaries in the U.S. mid-Atlantic region. JF - Environmental Monitoring and Assessment AU - Hale, S S AU - Buffum, H W Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 55 EP - 68 PB - Kluwer Academic Publishers, Postbus 17 Dordrecht 3300 AA Netherlands VL - 64 IS - 1 KW - Ecology Abstracts KW - Environmental monitoring KW - Databases KW - Information processing KW - Statistical analysis KW - Methodology KW - D 04700:Management KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17726035?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Designing+environmental+databases+for+statistical+analyses&rft.au=Hale%2C+S+S%3BBuffum%2C+H+W&rft.aulast=Hale&rft.aufirst=S&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=55&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Effect of Redox Zonation on the Reductive Transformation of p-Cyanonitrobenzene in a Laboratory Sediment Column AN - 17725847; 4796214 AB - The reductive transformation of a model compound, p-cyanonitrobenzene (pCNB), was investigated in a laboratory sediment column that had been characterized with respect to redox zonation. Characterization of the redox zones was assessed by measurement of the solution phase concentrations of NO sub(3) super(-), NO sub(2) super(-), Mn(II), Fe(II), and SO sub(4) super(2-). Monitoring iron concentrations over time showed that the redox zones were not under steady-state conditions. The iron-reducing zone migrated in the direction of the flow at an initial rate of about 0.2 cm per pore volume resulting in more oxidizing conditions with time. pCNB was rapidly reduced at the head of the column to p-cyano-N-hydroxylaniline (pCNH), which was reduced further to p-cyanoaniline (pCNA) in the iron-reducing zone. The same reaction-product distribution was observed in batch experiments with Fe(II)/goethite. Modeling of the column reaction kinetics demonstrated, however, that reduction of pCNB occurred at least an order of magnitude faster on the column than predicted by reaction parameters from the batch experiment. Aging of the column had a significant effect on the reduction kinetics of pCNB. After elution of 240 pore volumes, pCNB underwent facile reduction directly to pCNA under nitrate-reducing conditions suggesting a change in reaction mechanism from a chemical to a biological process. After elution of 283 pore volumes, the column was completely oxic, and reduction of pCNB was no longer observed. JF - Environmental Science & Technology AU - Simon, R AU - Colon, D AU - Tebes-Stevens, CL AU - Weber, E J AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory, 960 College Station Road, Athens, GA 30605-2700, USA, weber.eric@epa.gov Y1 - 2000/09/01/ PY - 2000 DA - 2000 Sep 01 SP - 3617 EP - 3622 VL - 34 IS - 17 SN - 0013-936X, 0013-936X KW - p-cyanonitrobenzene KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Redox reactions KW - Sediment pollution KW - Pore water KW - Benzenes KW - Laboratory testing KW - Path of Pollutants KW - Laboratories KW - Oxidation-reduction Potential KW - Contaminated sediments KW - Benzene KW - Chemical Reduction KW - Reduction (Chemical) KW - Oxidation KW - Sediment Contamination KW - Oxidation-reduction potential KW - Iron KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17725847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Effect+of+Redox+Zonation+on+the+Reductive+Transformation+of+p-Cyanonitrobenzene+in+a+Laboratory+Sediment+Column&rft.au=Simon%2C+R%3BColon%2C+D%3BTebes-Stevens%2C+CL%3BWeber%2C+E+J&rft.aulast=Simon&rft.aufirst=R&rft.date=2000-09-01&rft.volume=34&rft.issue=17&rft.spage=3617&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pore water; Sediment pollution; Redox reactions; Iron; Benzene; Laboratory testing; Oxidation; Reduction (Chemical); Oxidation-reduction potential; Contaminated sediments; Benzenes; Path of Pollutants; Chemical Reduction; Laboratories; Sediment Contamination; Oxidation-reduction Potential ER - TY - JOUR T1 - Development of the Coastal Intensive Site Network (CISNET) AN - 17724979; 4793939 AB - The U.S. Environmental Protection Agency (EPA), National Oceanic and Atmospheric Administration (NOAA), and National Aeronautics and Space Administration (NASA) have formed a partnership to establish pilot sites for the development of a network known as the Coastal Intensive Site Network (CISNet). CISNet is composed of intensive, long-term monitoring and research sites around the U.S. marine and Great Lakes coasts. In this partnership, EPA and NOAA are funding research and monitoring programs at pilot sites that utilize ecological indicators and investigate the ecological effects of environmental stressors. NASA is funding research aimed at developing a remote sensing capability that will augment or enhance in situ research and monitoring programs selected by EPA and NOAA. CISNet has three objectives: 1) to develop a sound scientific basis for understanding ecological responses to anthropogenic stresses in coastal environments, including the interaction of exposure, environment/climate, and biological/ecological factors in the response, and the spatial and temporal nature of these interactions, 2) to demonstrate the value of developing data from selected sites intensively monitored to examine the relationships between changes in environmental stressors, including anthropogenic and natural stresses, and ecological response, and 3) to provide intensively monitored sites for development and evaluation of indicators of change in coastal systems. JF - Environmental Monitoring and Assessment AU - Summers, K AU - Robertson, A AU - Levinson, B AD - U.S. Environmental Protection Agency, Gulf Ecology Division, 1 Sabine Island Drive, Gulf Breeze, FL 32561 USA A2 - Sandhu, SS A2 - Melzian, BD A2 - Long, ER A2 - Whitford, WG A2 - Walton, BT Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 379 EP - 390 PB - Kluwer Academic Publishers, Postbus 17 Dordrecht 3300 AA Netherlands VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - Sustainability Science Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Ecology Abstracts; Human Population KW - Environmental monitoring KW - Pollution monitoring KW - Biological stress KW - Coastal environments KW - Remote sensing KW - Anthropogenic factors KW - Man-induced effects KW - Coastal waters KW - Environmental protection KW - Human impact KW - Environmental studies KW - Coastal zone KW - Exposure KW - USA, Great Lakes KW - Environmental effects KW - Monitoring KW - USA Coasts KW - Research programs KW - O 6060:Coastal Zone Resources and Management KW - D 04001:Methodology - general KW - M3 1010:Issues in Sustainable Development KW - Q5 08501:General KW - M1 400:Monitoring and Quantitating Anthropogenic Processes KW - Q2 09124:Coastal zone management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17724979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Development+of+the+Coastal+Intensive+Site+Network+%28CISNET%29&rft.au=Summers%2C+K%3BRobertson%2C+A%3BLevinson%2C+B&rft.aulast=Summers&rft.aufirst=K&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=379&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Biological stress; Pollution monitoring; Coastal zone; Anthropogenic factors; Remote sensing; Man-induced effects; Coastal waters; Environmental protection; Environmental studies; Coastal environments; Exposure; Environmental effects; Monitoring; Research programs; Human impact; USA, Great Lakes; USA Coasts ER - TY - CONF T1 - An overview of EPA's Regional Vulnerability Assessment (ReVA) program AN - 17723288; 4793913 AB - Regional Vulnerability Assessment (ReVA) is an approach to place-based ecological risk assessment that is currently under development by EPA's Office of Research and Development. The pilot assessment will be done for the mid-Atlantic region and builds on data collected for the Environmental Monitoring and Assessment Program. ReVA is being developed to identify those ecosystems most vulnerable to being lost or degraded in the next 5 to 50 years and to elucidate which stressors cause the greatest risk to ecosystem goods and services. The goal here is not exact predictions, but an early warning system to identify and prioritize the undesirable environmental changes we should expect over the next few decades. As such, ReVA represents a new risk paradigm for EPA that will require innovative approaches to combine existing knowledge, focus new research, and synthesize many types of information into a meaningful assessment designed to inform environmental decision-makers about future environmental risk. JF - Environmental Monitoring and Assessment AU - Smith, E R Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 9 EP - 15 PB - Kluwer Academic Publishers, Postbus 17 Dordrecht 3300 AA Netherlands VL - 64 IS - 1 KW - USA KW - Risk Abstracts; Pollution Abstracts; Ecology Abstracts KW - Environmental degradation KW - Risk assessment KW - Ecosystems KW - Government policy KW - Environmental information KW - Regional planning KW - Environmental monitoring KW - EPA KW - Environment management KW - D 04700:Management KW - R2 23090:Policy and planning KW - P 9000:ENVIRONMENTAL ACTION KW - R2 23050:Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17723288?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=An+overview+of+EPA%27s+Regional+Vulnerability+Assessment+%28ReVA%29+program&rft.au=Smith%2C+E+R&rft.aulast=Smith&rft.aufirst=E&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - CONF T1 - EMAP overview: Objectives, approaches, and achievements AN - 17720307; 4793912 AB - Management for the future sustainability and integrity of our nation's ecological resources requires concepts and tools for measuring status and trends in these resources at multiple spatial and temporal scales and at multiple levels of biological organization. Key elements of this process are ecologically meaningful indicators and cost-effective monitoring designs. The Environmental Monitoring and Assessment Program (EMAP) advances the science needed for measuring ecosystem condition and trends. Most recently the EMAP approach has been successfully used by participants in the Mid-Atlantic Integrated Assessment (MAIA), including EPA's Office of Research and Development, EPA's Region III, and the States of the Mid-Atlantic. The participants in MAIA have produced a regional landscape atlas, state of the estuaries report, and state of the streams report. The work in MAIA is currently moving from monitoring into the assessment phase. The Western EMAP Pilot (Western Pilot), will be a test of our current MAIA indicators and technology for applicability in western ecosystems. New indicators and designs may be needed in the Western Pilot for assessments at the level of EPA's Regions, of the states, and of the Tribes; these assessments will be done so that they can be combined to provide regional assessments. Our coastal monitoring program in the Western estuaries will also be initiated shortly. Subsequently, this will be expanded to the Gulf and Atlantic coasts to provide the current condition of our national estuaries. By continuing to improve the science of monitoring, EMAP researchers will remove data gaps and allow the unequivocal assessment of the health of the nation's resources. JF - Environmental Monitoring and Assessment AU - McDonald, ME Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 3 EP - 8 PB - Kluwer Academic Publishers, Postbus 17 Dordrecht 3300 AA Netherlands VL - 64 IS - 1 KW - USA KW - Ecology Abstracts; Pollution Abstracts KW - Environmental monitoring KW - Ecosystem analysis KW - Planning KW - Research programs KW - P 9000:ENVIRONMENTAL ACTION KW - D 04890:Planning/development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17720307?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=EMAP+overview%3A+Objectives%2C+approaches%2C+and+achievements&rft.au=McDonald%2C+ME&rft.aulast=McDonald&rft.aufirst=ME&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/10.1023%2FA%3A1006482232447 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1023/A:1006482232447 ER - TY - CONF T1 - Global grids from recursive diamond subdivisions of the surface of an octahedron or icosahedron AN - 17719177; 4793920 AB - In recent years a number of methods have been developed for subdividing the surface of the earth to meet the needs of applications in dynamic modeling, survey sampling, and information storage and display. One set of methods uses the surfaces of Platonic solids, or regular polyhedra, as approximations to the surface of the earth. Diamond partitions are similar to recursive subdivisions of the triangular faces of either the octahedron or icosahedron. This method views the surface as either four (octahedron) or ten (icosahedron) tessellated diamonds, where each diamond is composed of two adjacent triangular faces of the figure. The method allows for a recursive partition on each diamond, creating nested sub-diamonds, that is implementable as a quadtree, including the provision for a Peano or Morton type coding system for addressing the hierarchical pattern of diamonds and their neighborhoods, and for linearizing storage. Furthermore, diamond partitions, in an aperture-4 hierarchy, provide direct access through the addressing system to the aperture-4 hierarchy of hexagons developed on the figure. Diamond partitions provide a nested hierarchy of grid cells for applications that require nesting and diamond cells have radial symmetry for those that require this property. Finally, diamond partitions can be cross-referenced with hierarchical triangle partitions used in other methods. JF - Environmental Monitoring and Assessment AU - White, D Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 93 EP - 103 PB - Kluwer Academic Publishers, Postbus 17 Dordrecht 3300 AA Netherlands VL - 64 IS - 1 KW - map partitions KW - Ecology Abstracts KW - Maps KW - Methodology KW - D 04700:Management KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17719177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Global+grids+from+recursive+diamond+subdivisions+of+the+surface+of+an+octahedron+or+icosahedron&rft.au=White%2C+D&rft.aulast=White&rft.aufirst=D&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - An evaluation of three empirical air-to-leaf models for polychlorinated dibenzo-p-dioxins and dibenzofurans AN - 17663925; 4726505 AB - Three empirical air-to-leaf models for estimating grass concentrations of polychlorinated dibenzo-p-dioxins and dibenzofurans (abbreviated dioxins and furans) from air concentrations of these compounds are described and tested against two field data sets. All are empirical in that they are founded on simplistic bioconcentration and related approaches which rely on field data for their parameterization. One of the models, identified as the EPA Model, partitions the total air concentration into vapor and particle phases, and separately models the impact of both. A second model addresses only the vapor phase; grass concentrations are modeled as a function of vapor deposition. For the third model, it is assumed that the grass plants "scavenge" a fixed volume of air of dioxins, and hence grass concentrations are modeled as a simple product of total air concentration and a constant scavenging coefficient. Field data from two sites, a rural and an industrial site in the United Kingdom, included concurrent measurements of dioxins in air and field grass, and dioxin and furan depositions, for one 6-week sampling period. Principal findings include: (1) the EPA Model underpredicted grass concentrations at the rural field site by a factor of 2, while the Scavenging Model underpredicted grass concentrations by a factor of 3.8, and the Vapor Deposition Model significantly underpredicted grass concentrations (by a factor greater than 10), (2) the presence of high soil concentrations for some of the dioxins and furans at the industrial site appears to have caused higher grass concentrations and confounded the air-to-plant modeling exercise, (3) the Scavenging Model could be calibrated to the data set; however, a key premise of this model - that vapor and particle phase dioxins equally impact the plants, is not supported by the field data, (4) measured depositions are highly correlated to but systematically lower than modeled depositions, which could be due to modeling assumptions or a systematic measurement bias. JF - Chemosphere AU - Lorber, M AU - Pinsky, P AD - National Center for Environmental Assessment (8623D), US EPA, 401 M St, SW, Washington, DC 20460, USA, lorber.matthew@epa.gov Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 931 EP - 941 VL - 41 IS - 6 SN - 0045-6535, 0045-6535 KW - Pollution Abstracts KW - Grasses KW - Furans KW - Dioxins KW - Air pollution KW - Pollutant deposition KW - Vapors KW - PCDF KW - Plants KW - PCDD KW - P 0000:AIR POLLUTION KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17663925?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere&rft.atitle=An+evaluation+of+three+empirical+air-to-leaf+models+for+polychlorinated+dibenzo-p-dioxins+and+dibenzofurans&rft.au=Lorber%2C+M%3BPinsky%2C+P&rft.aulast=Lorber&rft.aufirst=M&rft.date=2000-09-01&rft.volume=41&rft.issue=6&rft.spage=931&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=00456535&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Persistent organic pollutants and dioxins. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Air pollution; Plants; PCDD; PCDF; Dioxins; Furans; Grasses; Vapors; Pollutant deposition ER - TY - JOUR T1 - Status of aquatic bioassessment in U.S. EPA Region IX AN - 17038328; 4793914 AB - U.S. EPA Region IX is supporting bioassessment programs in Arizona, California, Hawaii and Nevada using biocriteria program and Regional Environmental Monitoring and Assessment Program (R-EMAP) resources. These programs are designed to improve the state, tribal and regional ability to determine the status of water quality. Biocriteria program funds were used to coordinate with Arizona, California and Hawaii which resulted in these states establishing reference conditions and in developing biological indices. U.S. EPA Region IX has initiated R-EMAP projects in California and Nevada. These U.S. EPA Region IX sponsored programs have provided an opportunity to interact with the States and provide them with technical and management support. In Arizona, several projects are being conducted to develop the State's bioassessment program. These include the development of a rotational random monitoring program; a regional reference approach for macroinvertebrate bioassessments; ecoregion approach to testing and adoption of an alternate regional classification system; and development of warm-water and cold-water indices of biological integrity. The indices are projected to be used in the Arizona Department of Environmental Quality (ADEQ) 2000 water quality assessment report. In California, an Index of Biological Integrity (IBI) has been developed for the Russian River Watershed using resources from U.S. EPA's Non-point Source (NPS) Program grants. A regional IBI is under development for certain water bodies in the San Diego Regional Water Quality Control Board. Resources from the U.S. EPA Biocriteria program are being used to support the California Aquatic Bioassessment Workgroup (CABW) in conjunction with the California Department of Fish & Game (CDFG), and to support the Hawaii Department of Health (DoH) Bioassessment Program to refine biological metrics. In Nevada, R-EMAP resources are being used to create a baseline of aquatic information for the Humboldt River watershed. U.S. EPA Region IX is presently working with the Nevada Division of Environmental Protection (NDEP) to establish a Nevada Aquatic Bioassessment Workgroup. Future R-EMAP studies will occur in the Calleguas Creek watershed in Southern California, and in the Muddy and Virgin River watersheds in southern Nevada, and the Walker River watershed in eastern California and west-central Nevada. JF - Environmental Monitoring and Assessment AU - Hall, R K AU - Wolinsky, G A AU - Husby, P AU - Harrington, J AU - Spindler, P AU - Vargas, K AU - Smith, G AD - U.S. EPA Region IX, 75 Hawthorne Street, San Francisco, CA 94105 USA A2 - Sandhu, SS A2 - Melzian, BD A2 - Long, ER A2 - Whitford, WG A2 - Walton, BT Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 17 EP - 30 PB - Kluwer Academic Publishers, Postbus 17 Dordrecht 3300 AA Netherlands VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - Environmental Protection Agency KW - US EPA KW - USA KW - USA, Arizona KW - USA, California KW - USA, Hawaii KW - USA, Nevada KW - ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Water Resources Abstracts; Pollution Abstracts; Ecology Abstracts KW - Aquatic organisms KW - Regional Analysis KW - Management KW - Water Pollution Sources KW - Pollution (Nonpoint sources) KW - Freshwater KW - Water quality KW - Ecosystem management KW - Regional planning KW - Pollution indicators KW - Bioindicators KW - Environmental monitoring KW - Biological surveys KW - Baseline Studies KW - Government programs KW - Water Quality KW - Nonpoint Pollution Sources KW - Inland water environment KW - Aquatic environment KW - Water quality control KW - EPA KW - Bioassays KW - Species diversity KW - Nature conservation KW - Census KW - Monitoring KW - Pollution (Water) KW - Water quality (Natural waters) KW - D 04700:Management KW - Q5 08523:Conservation, wildlife management and recreation KW - SW 5010:Network design KW - P 9000:ENVIRONMENTAL ACTION KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17038328?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Status+of+aquatic+bioassessment+in+U.S.+EPA+Region+IX&rft.au=Hall%2C+R+K%3BWolinsky%2C+G+A%3BHusby%2C+P%3BHarrington%2C+J%3BSpindler%2C+P%3BVargas%2C+K%3BSmith%2C+G&rft.aulast=Hall&rft.aufirst=R&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Biological surveys; Water quality control; Aquatic organisms; Species diversity; Ecosystem management; Nature conservation; Census; Inland water environment; Environmental monitoring; Management; Water quality; Aquatic environment; EPA; Bioassays; Government programs; Regional planning; Pollution (Nonpoint sources); Monitoring; Pollution (Water); Pollution indicators; Water quality (Natural waters); Bioindicators; Regional Analysis; Water Pollution Sources; Baseline Studies; Nonpoint Pollution Sources; Water Quality; Freshwater ER - TY - JOUR T1 - Giardia and cryptosporidium occurrence in groundwater AN - 1015240609; 2007-022204 AB - A total of 383 groundwater samples from 166 different sites were analyzed for Cryptosporidium, Giardia, and other microbiota (1-500 mu m) using immunofluorescence assay and light microscopy procedures. Analysis of the data showed 11 percent of the sites (19 of 166) were sometimes positive for Cryptosporidium, Giardia, or both. Statistical analyses determined that microbiota in eight major groups were indicative of Cryptosporidium and Giardia contamination. These groups include algae, arthropods, rotifers, fungi, nematodes, colorless flagellates, amoebae, and gastrotrichs. Cryptosporidium and Giardia occurrence also correlated positively with the three risk categories developed by the US Environmental Protection Agency to rank direct surface water influence on groundwaters (p = 0.001). However, the specific numerical scores used to determine risk categories provided no better prediction of the pathogens than the three general categories. To determine vulnerability to contamination, researchers first should investigate those groundwater sources with a diversity of microbiota. JF - Journal - American Water Works Association AU - Moulton-Hancock, Carrie AU - Rose, Joan B AU - Vasconcelos, G J AU - Harris, Stephanie I AU - Klonicki, Patricia T AU - Sturbaum, Gregory D Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 117 EP - 123 PB - American Water Works Association (AWWA), Denver, CO VL - 92 IS - 9 SN - 0003-150X, 0003-150X KW - water quality KW - Vermes KW - techniques KW - Nematoida KW - drinking water KW - ground water KW - laboratory studies KW - Giardia KW - immunoassays KW - springs KW - Invertebrata KW - particulate materials KW - concentration KW - experimental studies KW - Protista KW - pollution KW - aquifers KW - habitat KW - detection KW - Arthropoda KW - Cryptosporidium KW - bacteria KW - water wells KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015240609?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+-+American+Water+Works+Association&rft.atitle=Giardia+and+cryptosporidium+occurrence+in+groundwater&rft.au=Moulton-Hancock%2C+Carrie%3BRose%2C+Joan+B%3BVasconcelos%2C+G+J%3BHarris%2C+Stephanie+I%3BKlonicki%2C+Patricia+T%3BSturbaum%2C+Gregory+D&rft.aulast=Moulton-Hancock&rft.aufirst=Carrie&rft.date=2000-09-01&rft.volume=92&rft.issue=9&rft.spage=117&rft.isbn=&rft.btitle=&rft.title=Journal+-+American+Water+Works+Association&rft.issn=0003150X&rft_id=info:doi/ L2 - http://www.awwa.org/publications/JournalCurrent.cfm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 9 N1 - PubXState - CO N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - JAWWA5 N1 - SubjectsTermNotLitGenreText - aquifers; Arthropoda; bacteria; concentration; Cryptosporidium; detection; drinking water; experimental studies; Giardia; ground water; habitat; immunoassays; Invertebrata; laboratory studies; microorganisms; Nematoida; particulate materials; pollution; Protista; springs; techniques; Vermes; water quality; water wells ER - TY - JOUR T1 - Regulatory framework for the thermal treatment of various waste streams AN - 17673481; 4741521 AB - Since 1990, regulations and standards have changed considerably. This article is an update of the regulatory requirements for the thermal treatment of various waste streams. The waste categories covered, along with the laws they are governed under, include: Hazardous waste under Subtitle C of the Resource Conservation and Recovery Act (RCRA) and under the Clean Air Act (CAA); Municipal solid waste under Subtitle D of the RCRA; Medical waste under Subtitle J of the RCRA; Superfund waste under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA); Toxic waste under the Toxic Substances Control Act (TSCA); Sludge waste under the Clean Water Act (CWA). JF - Journal of Hazardous Materials AU - Lee, C C AU - Huffman, G L AU - Mao, Y L AD - U.S. Environmental Protection Agency, National Risk Management Research Laboratory, 26 W. Martin Luther King Drive, Cincinnati, OH 45268, USA Y1 - 2000/08/28/ PY - 2000 DA - 2000 Aug 28 SP - 13 EP - 22 VL - 76 IS - 1 SN - 0304-3894, 0304-3894 KW - heat treatments KW - Pollution Abstracts KW - Federal regulations KW - Superfund KW - CERCLA KW - Waste treatment KW - Municipal solid wastes KW - Clean Air Act KW - Clean Water Act KW - RCRA KW - Hazardous wastes KW - Legislation KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17673481?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hazardous+Materials&rft.atitle=Regulatory+framework+for+the+thermal+treatment+of+various+waste+streams&rft.au=Lee%2C+C+C%3BHuffman%2C+G+L%3BMao%2C+Y+L&rft.aulast=Lee&rft.aufirst=C&rft.date=2000-08-28&rft.volume=76&rft.issue=1&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hazardous+Materials&rft.issn=03043894&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Waste treatment; Legislation; Federal regulations; Hazardous wastes; Municipal solid wastes; RCRA; Superfund; CERCLA; Clean Water Act; Clean Air Act ER - TY - JOUR T1 - Using winter flounder growth rates to assess habitat quality in Rhode Island's coastal lagoons AN - 17694533; 4779150 AB - We used growth rates of juvenile winter flounder Pseudopleuronectes americanus, to assess habitat quality in 3 of Rhode Island's coastal salt ponds that had differing levels of nutrients and human development. In each pond, 1 m super(2) cages were placed in vegetated and unvegetated habitats and growth rates of individually marked fish were measured in three 10 to 15 d experiments from 4 June to 7 July 1997. Water temperature, salinity, dissolved oxygen, and benthic food were also measured. Stable isotopes of C and N were measured in experimental and wild fish. Growth rates were 0.06 to 0.76 mm d super(-1) and decreased through the experiments. Growth rates of wild fish (0.19 mm d super(-1) in Point Judith Pond and 0.21 in Ninigret Pond) were similar to the average of the 2nd and 3rd experiments (0.24 mm d super(-1)). Growth rates were the same in vegetated and unvegetated sites. They were also the same in Point Judith and Ninigret ponds but lower in Green Hill Pond. An ANCOVA suggested that Green Hill's lower rates were caused by its higher temperatures, particularly during the 3rd experiment. Benthic food was similar in the different ponds, different habitat types, and in cores taken inside and outside cages. Categories of food consumed by fish were not affected by the affected by the presence of vegetation in a cage, although food consumed did differ from pond to pond. Amphipods were the preferred food in all ponds; fish consumed proportionately more amphipods and fewer polychaetes in Ninigret Pond than in the other ponds. Values of delta super(15)N in the fish varied with the degree of development in the watershed but not with total nitrogen in the water column. The results of this study indicate that growth rates of fish can be used as indicators of habitat quality. JF - Marine Ecology Progress Series AU - Meng, L AU - Gray, C AU - Taplin, B AU - Kupcha, E AD - Atlantic Ecology Division, US Environmental Protection Agency, 27 Tarzwell Drive, Narragansett, Rhode Island 02882, USA, meng.lesa@epamail.epa.gov Y1 - 2000/08/09/ PY - 2000 DA - 2000 Aug 09 SP - 287 EP - 299 VL - 201 SN - 0171-8630, 0171-8630 KW - USA, Rhode Island KW - Oceanic Abstracts; Ecology Abstracts KW - Growth rate KW - Coastal environments KW - ANW, USA, Rhode Island, Point Judith Pond KW - Prey selection KW - Food availability KW - Habitat KW - Lagoons KW - Ecosystem disturbance KW - Feeding behaviour KW - ANW, USA, Rhode Island, Ninigret Pond KW - Pseudopleuronectes americanus KW - Coastal lagoons KW - O 1070:Ecology/Community Studies KW - D 04001:Methodology - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17694533?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Ecology+Progress+Series&rft.atitle=Using+winter+flounder+growth+rates+to+assess+habitat+quality+in+Rhode+Island%27s+coastal+lagoons&rft.au=Meng%2C+L%3BGray%2C+C%3BTaplin%2C+B%3BKupcha%2C+E&rft.aulast=Meng&rft.aufirst=L&rft.date=2000-08-09&rft.volume=201&rft.issue=&rft.spage=287&rft.isbn=&rft.btitle=&rft.title=Marine+Ecology+Progress+Series&rft.issn=01718630&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudopleuronectes americanus; ANW, USA, Rhode Island, Point Judith Pond; ANW, USA, Rhode Island, Ninigret Pond; Coastal lagoons; Ecosystem disturbance; Prey selection; Feeding behaviour; Food availability; Growth rate; Habitat; Coastal environments; Lagoons ER - TY - JOUR T1 - Morphotype community structure of ectomycorrhizas on Douglas fir (Pseudotsuga menziesii Mirb. Franco) seedlings grown under elevated atmospheric CO2 and temperature AN - 17627506; 4770117 AB - Mycorrhizas alter the acquisition of carbon and nutrients, thereby affecting numerous plant and ecosystem processes. It is important, therefore, to determine how mycorrhizal populations will change under possible future climate conditions. Individual and interactive effects of elevated atmospheric CO2 concentration and atmospheric temperature were assessed in a 22 factorial design [ambient and elevated (200 ppm above ambient) CO2 concentrations, and ambient and elevated (4 degree C above ambient) temperatures]. In June 1993, 2-year-old Douglas fir (Pseudotsuga menziesii Mirb. Franco) seedlings were planted in 12 environment-tracking chambers (n=3) containing reconstructed, low-nitrogen, native forest soil. Climate treatments were imposed shortly thereafter, and the seedlings grew until June 1997. Soil cores were taken twice per year during the exposure period. We present findings on changes in the community structure of ectomycorrhizal (ECM) root tips, categorized into morphotypes using gross morphological traits. A diverse and stable community of morphotypes (a total of 40) was encountered; no more than 30 of which were seen at any sampling time. In the first sample, there were only 15 morphotypes found in the 12 chambers. Morphotype numbers increased during the first half of the experiment, remaining fairly constant thereafter. Near the end of the exposure, elevated-temperature treatments maintained more morphotypes than ambient treatments. However, overall, absolute measures (number of ECM tips) were affected primarily by CO2 treatment, whereas proportional measures (e.g., Simpson's index) were affected primarily by temperature. While some morphotypes were negatively affected seasonally by higher temperatures (putativeRhizopogon group), others (Cenococcum) seemed to thrive. Underlying the dominant patterns of change in diversity, driven by theRhizopogon group, subdominant populations responded slightly differently. Community diversity through time tended to increase at a greater rate for all subdominant populations compared with the rate when dominant populations were included. JF - Oecologia AU - Rygiewicz, P T AU - Martin, K J AU - Tuininga, A R AD - US Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, 200 SW 35th Street, Corvallis, OR 97333, USA, rags@mail.cor.epa.gov Y1 - 2000/08/04/ PY - 2000 DA - 2000 Aug 04 SP - 299 EP - 308 PB - Springer-Verlag VL - 124 IS - 2 SN - 0029-8549, 0029-8549 KW - Douglas-fir KW - Ecology Abstracts KW - Temperature effects KW - Mycorrhizas KW - Community structure KW - Pseudotsuga menziesii KW - Seedlings KW - D 04623:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17627506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oecologia&rft.atitle=Morphotype+community+structure+of+ectomycorrhizas+on+Douglas+fir+%28Pseudotsuga+menziesii+Mirb.+Franco%29+seedlings+grown+under+elevated+atmospheric+CO2+and+temperature&rft.au=Rygiewicz%2C+P+T%3BMartin%2C+K+J%3BTuininga%2C+A+R&rft.aulast=Rygiewicz&rft.aufirst=P&rft.date=2000-08-04&rft.volume=124&rft.issue=2&rft.spage=299&rft.isbn=&rft.btitle=&rft.title=Oecologia&rft.issn=00298549&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudotsuga menziesii; Mycorrhizas; Community structure; Seedlings; Temperature effects ER - TY - JOUR T1 - Influences of metal cations on the determination of the alpha-oxocarboxylates as the methyl esters of the O-(2,3,4,5,6-pentafluorobenzyl)oximes by gas chromatography: the importance of accounting for matrix effects. AN - 72594653; 11249788 AB - The alpha-oxocarboxylates alpha-ketocarboxylates) and the corresponding alpha-oxoacids (alpha-ketoacids) have been reported as disinfection byproducts of ozonation of potable water supplies. In this analytical method, the oxo moiety is derivatized with O-(2,3,4,5,6-pentafluorobenzyl)oxylamine (PFBOA) to form an oxime which is then extracted into tert-butyl methyl ether. The carboxylic acid moiety is esterified (methylated) with diazomethane. In this study, five analytes were investigated: oxoethanoate (glyoxylate), 2-oxopropanoate (pyruvate), 2-oxobutanoate (2-ketobutyrate), 2-oxopentanoate (2-ketovalerate), and oxopropanedioate (ketomalonate, mesoxalate). The influence of Lewis acid metal cations in the water matrix was evaluated for the gas chromatographic method commonly used for the quantitation of these analytes at concentrations < or = 150 ng mL(-1). Tested metals included Ca(II), Mg(II), Fe(III), Cu(II) and Zn(II). At typical concentrations, calcium, in particular, can have profound impact, especially on oxoethanoate quantitation. Oxopropanoate experiences an increase in recovery in the presence of metal cations. 2-Oxobutanoate and 2-oxopentanoate are the most resistant to these effects, but 2-oxopentanoate shows increased recoveries at higher concentrations when assayed in the presence of calcium ion. Oxopropanedioate generally shows poorer precision and recovery when determined in solutions containing metal ions. This investigation demonstrates the significance of metal effects in the quantitative determination of these analytes and further emphasizes the importance of thorough matrix characterization and careful recovery studies with fortified (spiked) samples and blanks. JF - Journal of environmental monitoring : JEM AU - Urbansky, E T AD - United States Environmental Protection Agency, Water Supply and Water Resources Division, Cincinnati, OH 45268, USA. urbansky.edward@epa.gov Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 334 EP - 338 VL - 2 IS - 4 SN - 1464-0325, 1464-0325 KW - Carboxylic Acids KW - 0 KW - Cations KW - Esters KW - Metals KW - Oximes KW - Index Medicus KW - Environmental Monitoring KW - Reproducibility of Results KW - Chromatography, Gas KW - Metals -- chemistry KW - Oximes -- analysis KW - Carboxylic Acids -- chemistry KW - Oximes -- chemistry KW - Carboxylic Acids -- analysis KW - Carboxylic Acids -- metabolism KW - Oximes -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72594653?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+environmental+monitoring+%3A+JEM&rft.atitle=Influences+of+metal+cations+on+the+determination+of+the+alpha-oxocarboxylates+as+the+methyl+esters+of+the+O-%282%2C3%2C4%2C5%2C6-pentafluorobenzyl%29oximes+by+gas+chromatography%3A+the+importance+of+accounting+for+matrix+effects.&rft.au=Urbansky%2C+E+T&rft.aulast=Urbansky&rft.aufirst=E&rft.date=2000-08-01&rft.volume=2&rft.issue=4&rft.spage=334&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+monitoring+%3A+JEM&rft.issn=14640325&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-03-29 N1 - Date created - 2001-03-15 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Computer simulations of particle deposition in the developing human lung. AN - 72282247; 11002604 AB - An age-dependent theoretical model has been developed to predict PM dosimetry in children's lungs. Computer codes have been written that describe the dimensions of individual airways and the geometry of branching airway networks within developing lungs. Breathing parameters have also been formulated as functions of subject age. Our computer simulations suggest that particle size, age, and activity level markedly affect deposition patterns of inhaled air pollutants. For example, the predicted lung deposition fraction is 38% in an adult but is nearly twice as high (73%) in a 7-month-old for 2-micron particles inhaled during heavy breathing. Tracheobronchial (TB) and pulmonary (or alveolated airways, P) deposition patterns may also be calculated using the model. Due to different clearance processes in the TB and P airways (i.e., mucociliary transport and macrophage action, respectively), the determination of compartmental dose is important for PM risk assessment analyses. Furthermore, the results of such simulations may aid in the setting of regulatory standards for air pollutants, as the data provide a scientific basis for estimating dose delivered to a designated sensitive subpopulation (children). JF - Journal of the Air & Waste Management Association (1995) AU - Musante, C J AU - Martonen, T B AD - University of North Carolina, Chapel Hill, USA. musante.cynthia@epa.gov Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 1426 EP - 1432 VL - 50 IS - 8 SN - 1096-2247, 1096-2247 KW - Index Medicus KW - Infant KW - Policy Making KW - Age Factors KW - Particle Size KW - Inhalation Exposure KW - Humans KW - Adult KW - Infant, Newborn KW - Aged KW - Middle Aged KW - Child KW - Public Policy KW - Adolescent KW - Child, Preschool KW - Computer Simulation KW - Air Pollution -- adverse effects KW - Lung -- drug effects KW - Lung -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72282247?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.atitle=Computer+simulations+of+particle+deposition+in+the+developing+human+lung.&rft.au=Musante%2C+C+J%3BMartonen%2C+T+B&rft.aulast=Musante&rft.aufirst=C&rft.date=2000-08-01&rft.volume=50&rft.issue=8&rft.spage=1426&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.issn=10962247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-27 N1 - Date created - 2000-10-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Comparison of particle size distributions and elemental partitioning from the combustion of pulverized coal and residual fuel oil. AN - 72281120; 11002612 AB - U.S. Environmental Protection Agency (EPA) research examining the characteristics of primary PM generated by the combustion of fossil fuels is being conducted in efforts to help determine mechanisms controlling associated adverse health effects. Transition metals are of particular interest, due to the results of studies that have shown cardiopulmonary damage associated with exposure to these elements and their presence in coal and residual fuel oils. Further, elemental speciation may influence this toxicity, as some species are significantly more water-soluble, and potentially more bio-available, than others. This paper presents results of experimental efforts in which three coals and a residual fuel oil were combusted in three different systems simulating process and utility boilers. Particle size distributions (PSDs) were determined using atmospheric and low-pressure impaction as well as electrical mobility, time-of-flight, and light-scattering techniques. Size-classified PM samples from this study are also being utilized by colleagues for animal instillation experiments. Experimental results on the mass and compositions of particles between 0.03 and > 20 microns in aerodynamic diameter show that PM from the combustion of these fuels produces distinctive bimodal and trimodal PSDs, with a fine mode dominated by vaporization, nucleation, and growth processes. Depending on the fuel and combustion equipment, the coarse mode is composed primarily of unburned carbon char and associated inherent trace elements (fuel oil) and fragments of inorganic (largely calcium-alumino-silicate) fly ash including trace elements (coal). The three coals also produced a central mode between 0.8- and 2.0-micron aerodynamic diameter. However, the origins of these particles are less clear because vapor-to-particle growth processes are unlikely to produce particles this large. Possible mechanisms include the liberation of micron-scale mineral inclusions during char fragmentation and burnout and indicates that refractory transition metals can contribute to PM < 2.5 microns without passing through a vapor phase. When burned most efficiently, the residual fuel oil produces a PSD composed almost exclusively of an ultrafine mode (approximately 0.1 micron). The transition metals associated with these emissions are composed of water-soluble metal sulfates. In contrast, the transition metals associated with coal combustion are not significantly enriched in PM < 2.5 microns and are significantly less soluble, likely because of their association with the mineral constituents. These results may have implications regarding health effects associated with exposure to these particles. JF - Journal of the Air & Waste Management Association (1995) AU - Linak, W P AU - Miller, C A AU - Wendt, J O AD - Air Pollution Prevention and Control Division, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA. linak.bill@epa.gov Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 1532 EP - 1544 VL - 50 IS - 8 SN - 1096-2247, 1096-2247 KW - Coal KW - 0 KW - Fuel Oils KW - Index Medicus KW - Particle Size KW - Biological Availability KW - Air Pollution -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72281120?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.atitle=Comparison+of+particle+size+distributions+and+elemental+partitioning+from+the+combustion+of+pulverized+coal+and+residual+fuel+oil.&rft.au=Linak%2C+W+P%3BMiller%2C+C+A%3BWendt%2C+J+O&rft.aulast=Linak&rft.aufirst=W&rft.date=2000-08-01&rft.volume=50&rft.issue=8&rft.spage=1532&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.issn=10962247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-27 N1 - Date created - 2000-10-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Sulfate: exposure and potential regulaton. AN - 72248471; 10984000 JF - Critical reviews in clinical laboratory sciences AU - Abernathy, C O AU - Dooley, I S AU - Wu, J AD - Office of Science and Technology, US EPA, Washington, DC 20460-0001, USA. abernathy.charles@epa.gov Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 401 EP - 405 VL - 37 IS - 4 SN - 1040-8363, 1040-8363 KW - Sulfates KW - 0 KW - Water KW - 059QF0KO0R KW - Index Medicus KW - United States KW - Centers for Disease Control and Prevention (U.S.) KW - Humans KW - Water -- chemistry KW - United States Environmental Protection Agency -- legislation & jurisprudence KW - Sulfates -- metabolism KW - Sulfates -- pharmacology KW - Water Supply KW - Environmental Exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72248471?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Critical+reviews+in+clinical+laboratory+sciences&rft.atitle=Sulfate%3A+exposure+and+potential+regulaton.&rft.au=Abernathy%2C+C+O%3BDooley%2C+I+S%3BWu%2C+J&rft.aulast=Abernathy&rft.aufirst=C&rft.date=2000-08-01&rft.volume=37&rft.issue=4&rft.spage=401&rft.isbn=&rft.btitle=&rft.title=Critical+reviews+in+clinical+laboratory+sciences&rft.issn=10408363&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-01-04 N1 - Date created - 2000-12-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Association of asthma symptoms and severity with indoor bioaerosols. AN - 72201129; 10955695 AB - In this study, repeated measurements were made of levels of mold spores, bacteria, and dust-mite allergens over a 7-month period in the homes of asthmatics, and relationships with measures of asthma severity were evaluated. A sample of 57 asthmatic individuals, living in 44 homes in East Moline, Illinois, and nearby communities, participated in a panel study. The homes were visited up to nine times during the study to collect air and dust samples. Asthma severity indicators were derived from questionnaire data and from the daily health records from the panel study. Associations between indoor levels of mold spores, bacteria, and dust-mite allergens were tested with several asthma severity indicators. There was evidence of associations between all asthma severity measures and levels of total and gram-negative bacteria, but mold-spore abundance was associated only with emergency room (ER) visits for asthma. No significant associations were found with house-dust-mite allergen and any of the asthma severity indicators, but the levels of dust-mite allergen were low, with median concentrations of 0.18 microg/g dust Der f 1 and 0.19 microg/g dust Der p 1. Some evidence was found for associations of increased concentrations of gram-negative bacteria and mold spores with asthma severity, particularly with ER visits. No association was found between house-dust-mite allergen and asthma severity indicators; however, the mite-allergen levels in the study homes were generally well below the proposed threshold level of 2 microg/g dust. JF - Allergy AU - Ross, M A AU - Curtis, L AU - Scheff, P A AU - Hryhorczuk, D O AU - Ramakrishnan, V AU - Wadden, R A AU - Persky, V W AD - Office of Air Quality Planning and Standards, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA. Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 705 EP - 711 VL - 55 IS - 8 SN - 0105-4538, 0105-4538 KW - Aerosols KW - 0 KW - Antigens, Dermatophagoides KW - Dust KW - Glycoproteins KW - Index Medicus KW - Severity of Illness Index KW - Animals KW - Dust -- analysis KW - Humans KW - Humidity KW - Glycoproteins -- isolation & purification KW - Colony Count, Microbial KW - Air Conditioning KW - Air Microbiology KW - Female KW - Aerosols -- analysis KW - Air Pollution, Indoor -- adverse effects KW - Air Pollution, Indoor -- analysis KW - Asthma -- microbiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72201129?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Allergy&rft.atitle=Association+of+asthma+symptoms+and+severity+with+indoor+bioaerosols.&rft.au=Ross%2C+M+A%3BCurtis%2C+L%3BScheff%2C+P+A%3BHryhorczuk%2C+D+O%3BRamakrishnan%2C+V%3BWadden%2C+R+A%3BPersky%2C+V+W&rft.aulast=Ross&rft.aufirst=M&rft.date=2000-08-01&rft.volume=55&rft.issue=8&rft.spage=705&rft.isbn=&rft.btitle=&rft.title=Allergy&rft.issn=01054538&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-01-25 N1 - Date created - 2000-11-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Promotion by sodium barbital induces early development but does not increase the multiplicity of hereditary renal tumors in Eker rats. AN - 71256248; 10910958 AB - Induced cell proliferation is important in the mode of action of many non-genotoxic renal carcinogens. Since Tsc2 mutant (Eker) rats are genetically predisposed to the development of renal cell tumors, they provide a useful animal model in which to study the action of renal carcinogens. Sodium barbital was used as a model non-genotoxic renal carcinogen to test whether a concentration that increased renal tubular proliferation without severe nephrotoxicity would enhance tumor induction in a hereditary tumor model. First, a subchronic concentration-response study was conducted in wild-type male Long-Evans rats to determine increased cell proliferation without severe nephrotoxicity. Rats were dosed with sodium barbital in the feed at 0, 50, 250, 500, 1000, 2000 or 4000 p.p.m. for 3 or 8 weeks. Cell proliferation within the cortex and nephrotoxicity were quantitated. Enhanced proliferation with minimal nephrotoxicity occurred at 500 p.p.m. A second study was conducted in male Tsc2 mutant rats given sodium barbital in the feed at 0, 100 or 500 p.p.m. from 9 weeks of age to either 6 or 12 months of age. An additional group of rats was treated with sodium barbital for 6 months and then provided control feed until 12 months of age. Rats necropsied at 6 months of age had a concentration-dependent increase in preneoplastic and total renal lesions. Sodium barbital-treated rats necropsied at 12 months of age had numbers of lesions that were not different from controls. Total combined preneoplastic and neoplastic lesions in the 6 month, high dose group was the same as the 12 month control group. These data show that sodium barbital caused progression to the stage of spontaneous renal lesions in Tsc2 mutant rats but did not increase their overall number. These data suggest that enhanced cell proliferation without significant cytotoxicity exerted a promotional influence in this hereditary model. JF - Carcinogenesis AU - Wolf, D C AU - Goldsworthy, T L AU - Janszen, D B AU - Harden, R AU - Donner, E M AU - David, C S AU - Everitt, J I AD - Chemical Industry Institute of Toxicology, Research Triangle Park, NC 27709, USA. wolf.doug@epa.gov Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 1553 EP - 1558 VL - 21 IS - 8 SN - 0143-3334, 0143-3334 KW - Hypnotics and Sedatives KW - 0 KW - Barbital KW - 5WZ53ENE2P KW - Index Medicus KW - Animals KW - Rats, Long-Evans KW - Dose-Response Relationship, Drug KW - Kidney Cortex -- cytology KW - Cell Division -- drug effects KW - Kidney Cortex -- pathology KW - Kidney Tubules, Proximal -- cytology KW - Rats KW - Precancerous Conditions -- genetics KW - Hyperplasia -- chemically induced KW - Kidney Cortex -- drug effects KW - Hyperplasia -- genetics KW - Precancerous Conditions -- chemically induced KW - Kidney Tubules, Proximal -- drug effects KW - Male KW - Kidney Neoplasms -- genetics KW - Hypnotics and Sedatives -- toxicity KW - Cocarcinogenesis KW - Kidney Neoplasms -- chemically induced KW - Genetic Predisposition to Disease KW - Barbital -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71256248?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Carcinogenesis&rft.atitle=Promotion+by+sodium+barbital+induces+early+development+but+does+not+increase+the+multiplicity+of+hereditary+renal+tumors+in+Eker+rats.&rft.au=Wolf%2C+D+C%3BGoldsworthy%2C+T+L%3BJanszen%2C+D+B%3BHarden%2C+R%3BDonner%2C+E+M%3BDavid%2C+C+S%3BEveritt%2C+J+I&rft.aulast=Wolf&rft.aufirst=D&rft.date=2000-08-01&rft.volume=21&rft.issue=8&rft.spage=1553&rft.isbn=&rft.btitle=&rft.title=Carcinogenesis&rft.issn=01433334&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-08-23 N1 - Date created - 2000-08-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Measurement of total lung deposition of inhaled ultrafine particles in healthy men and women. AN - 71235239; 10880153 AB - Ultrafine particles (< 0.10 microm in diameter) are present in great number in polluted urban air, thus posing a potential health risk. In this study, the total deposition fraction (TDF) of ultrafine aerosols with a narrow size distribution (number median diameter NMD = 0.04-0.1 microm and geometric standard deviation sigma(g) = approximately 1.3) was measured in a group of young healthy adults (11 men and 11 women). TDF was obtained with 6 different breathing patterns: tidal volume (V(t)) of 500 ml at respiratory flow rates (Q) of 150 and 250 ml/s; V(t) = 750 ml at Q of 250 and 375 ml/s; and V(t) = 1 L at Q of 250 and 500 ml/s. Aerosols were monitored continuously by a modified condensation nuclei counter while subjects were inhaling them with prescribed breathing patterns. For a given breathing pattern, TDF increased as particle size decreased, regardless of the breathing pattern used. For example, with V(t) = 500 ml and Q = 250 ml/s, TDF (mean +/- SD) was 0.26 +/-.04, 0.30 +/-. 05, 0.35 +/-.05, and 0.44 +/-.07 for NMD = 0.10, 0.08, 0.06, and 0. 04 microm, respectively. For a given NMD, TDF increased with an increase in V(t) and a decrease in Q. TDF was greater for women than men at NMD = 0.04 microm within all breathing patterns used (p <.05), but the difference was smaller or negligible for larger sized particles. The results suggest that the TDF of ultrafine particles increases with a decrease of particle size and with breathing patterns of longer respiratory time, a pattern that is consistent with diffusion deposition of ultrafine particles. The results also suggest that there is a differential lung dose of ultrafine particles and thus there may be a differential health risk for men versus women. JF - Inhalation toxicology AU - Jaques, P A AU - Kim, C S AD - U.S. EPA, National Health and Environmental Effects Research Laboratory, MD-58B, Research Triangle Park, NC 27711, USA. Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 715 EP - 731 VL - 12 IS - 8 SN - 0895-8378, 0895-8378 KW - Aerosols KW - 0 KW - Air Pollutants KW - Index Medicus KW - Airway Resistance -- drug effects KW - Total Lung Capacity -- drug effects KW - Pulmonary Ventilation KW - Sex Characteristics KW - Dose-Response Relationship, Drug KW - Particle Size KW - Humans KW - Plethysmography, Whole Body KW - Adult KW - Male KW - Female KW - Tidal Volume KW - Air Pollutants -- classification KW - Air Pollutants -- metabolism KW - Inhalation Exposure KW - Lung -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71235239?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Inhalation+toxicology&rft.atitle=Measurement+of+total+lung+deposition+of+inhaled+ultrafine+particles+in+healthy+men+and+women.&rft.au=Jaques%2C+P+A%3BKim%2C+C+S&rft.aulast=Jaques&rft.aufirst=P&rft.date=2000-08-01&rft.volume=12&rft.issue=8&rft.spage=715&rft.isbn=&rft.btitle=&rft.title=Inhalation+toxicology&rft.issn=08958378&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-27 N1 - Date created - 2000-10-16 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - (super 210) Pb and (super 210) Po determination in environmental samples AN - 52316464; 2000-063766 JF - Applied Radiation and Isotopes AU - Jia, Guogang AU - Belli, Maria AU - Blasi, Massimo AU - Marchetti, Andrea AU - Rosamilia, Silvia AU - Sansone, Umberto A2 - Holm, E. A2 - Jerome, Simon A2 - Hurtgen, C. Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 115 EP - 120 PB - Pergamon, Oxford VL - 53 IS - 1-2 SN - 0969-8043, 0969-8043 KW - soils KW - water quality KW - monitoring KW - degradation KW - Po-210 KW - isotopes KW - detection limit KW - lead KW - techniques KW - biota KW - measurement KW - bioaccumulation KW - radioactive isotopes KW - detection KW - metals KW - sediments KW - leaching KW - chemical composition KW - sequential separation KW - polonium KW - Pb-210 KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52316464?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Radiation+and+Isotopes&rft.atitle=%28super+210%29+Pb+and+%28super+210%29+Po+determination+in+environmental+samples&rft.au=Jia%2C+Guogang%3BBelli%2C+Maria%3BBlasi%2C+Massimo%3BMarchetti%2C+Andrea%3BRosamilia%2C+Silvia%3BSansone%2C+Umberto&rft.aulast=Jia&rft.aufirst=Guogang&rft.date=2000-08-01&rft.volume=53&rft.issue=1-2&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Applied+Radiation+and+Isotopes&rft.issn=09698043&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/09698043 LA - English DB - GeoRef N1 - Conference title - ICRM conference on Low-level radioactivity measurement techniques N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 10 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bioaccumulation; biota; chemical composition; degradation; detection; detection limit; isotopes; leaching; lead; measurement; metals; monitoring; Pb-210; Po-210; polonium; radioactive isotopes; sediments; sequential separation; soils; techniques; water quality ER - TY - JOUR T1 - Vapor phase treatment of PCE in a soil column by lab-scale anaeorbic bioventing AN - 52104906; 2002-045431 JF - Water Research (Oxford) AU - Mihopoulos, Philip G AU - Sayles, Gregory D AU - Suidan, Makram T AU - Shah, Jindal AU - Bishop, Dolloff F Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 3231 EP - 3237 PB - Pergamon, Oxford-New York VL - 34 IS - 12 SN - 0043-1354, 0043-1354 KW - soils KW - chlorinated hydrocarbons KW - biodegradation KW - experimental studies KW - degradation KW - in situ KW - soil vapor extraction KW - dehalogenation KW - unsaturated zone KW - soil treatment KW - pollution KW - tetrachloroethylene KW - remediation KW - laboratory studies KW - organic compounds KW - bioventing KW - decontamination KW - dechlorination KW - halogenated hydrocarbons KW - anaerobic environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52104906?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Research+%28Oxford%29&rft.atitle=Vapor+phase+treatment+of+PCE+in+a+soil+column+by+lab-scale+anaeorbic+bioventing&rft.au=Mihopoulos%2C+Philip+G%3BSayles%2C+Gregory+D%3BSuidan%2C+Makram+T%3BShah%2C+Jindal%3BBishop%2C+Dolloff+F&rft.aulast=Mihopoulos&rft.aufirst=Philip&rft.date=2000-08-01&rft.volume=34&rft.issue=12&rft.spage=3231&rft.isbn=&rft.btitle=&rft.title=Water+Research+%28Oxford%29&rft.issn=00431354&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00431354 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 29 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - WATRAG N1 - SubjectsTermNotLitGenreText - anaerobic environment; biodegradation; bioventing; chlorinated hydrocarbons; dechlorination; decontamination; degradation; dehalogenation; experimental studies; halogenated hydrocarbons; in situ; laboratory studies; organic compounds; pollution; remediation; soil treatment; soil vapor extraction; soils; tetrachloroethylene; unsaturated zone ER - TY - JOUR T1 - Analyzing the consequences of environmental spatial patterns on environmental resources; the use of landscape metrics generated from remote sensing data AN - 52018251; 2003-021321 AB - A number of existing and new remote sensing data provide images of areas ranging from small communities to continents. These images provide views on a wide range of physical features in the landscape, including vegetation, road infrastructure, urban areas, geology, soils, and water courses. Despite increases in the spatial and attribute resolution of images over the last few years, we have fallen behind on our ability to move these images beyond pretty pictures to robust environmental assessments. This paper presents a series of methods developed by the US Environmental Protection Agency to analyze spatial patterns in the environment and the consequences of such patterns on the conditions of ecological resources, including forests, water, and biota (biological diversity). The methods apply fundamental principles from the fields of landscape ecology and ecological hierarchy theory, and take advantage of new remote sensing databases and advances in geographic information system (GIS) technology. We demonstrate the applications of these approaches relative to three scales: (1) an assessment of forest fragmentation at the global scale, (2) an assessment of water resources at a regional scale, and (3) an assessment of habitat resources (biological diversity) at a watershed or catchment scale. JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Bruce Jones, K AU - Neale, Anne C AU - Nash, Maliha S AU - van Remortel, Rick D AU - Wickham, James D AU - Riitters, Kurt H AU - O'Neill, Robert V AU - Anonymous Y1 - 2000/08// PY - 2000 DA - August 2000 PB - [International Geological Congress], [location varies] VL - 31 KW - forests KW - spatial data KW - data processing KW - information management KW - biota KW - data management KW - geographic information systems KW - data bases KW - information systems KW - ecology KW - water resources KW - land use KW - remote sensing KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52018251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=Analyzing+the+consequences+of+environmental+spatial+patterns+on+environmental+resources%3B+the+use+of+landscape+metrics+generated+from+remote+sensing+data&rft.au=Bruce+Jones%2C+K%3BNeale%2C+Anne+C%3BNash%2C+Maliha+S%3Bvan+Remortel%2C+Rick+D%3BWickham%2C+James+D%3BRiitters%2C+Kurt+H%3BO%27Neill%2C+Robert+V%3BAnonymous&rft.aulast=Bruce+Jones&rft.aufirst=K&rft.date=2000-08-01&rft.volume=31&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Brazil 2000; 31st international geological congress N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by International Geological Congress Organizational Committee N1 - Date revised - 2003-01-01 N1 - SuppNotes - File G2405002.PDF N1 - Last updated - 2013-07-18 N1 - CODEN - IGABBY N1 - SubjectsTermNotLitGenreText - biota; data bases; data management; data processing; ecology; forests; geographic information systems; information management; information systems; land use; remote sensing; spatial data; water resources ER - TY - JOUR T1 - Measuring vertical profiles of hydraulic conductivity with in situ direct-push methods AN - 52013722; 2003-022006 JF - Journal of Environmental Engineering AU - Cho, Jon Soo AU - Wilson, John T AU - Beck, Frank P, Jr Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 775 EP - 777 PB - American Society of Civil Engineers, Environmental Engineering Division, New York, NY VL - 126 IS - 8 SN - 0733-9372, 0733-9372 KW - protection KW - in situ KW - contaminant plumes KW - Geoprobe KW - data acquisition KW - data processing KW - water management KW - pollution KW - observation wells KW - techniques KW - porous materials KW - measurement KW - ground water KW - aquifers KW - hydraulic conductivity KW - mobility KW - unconfined aquifers KW - instruments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52013722?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Engineering&rft.atitle=Measuring+vertical+profiles+of+hydraulic+conductivity+with+in+situ+direct-push+methods&rft.au=Cho%2C+Jon+Soo%3BWilson%2C+John+T%3BBeck%2C+Frank+P%2C+Jr&rft.aulast=Cho&rft.aufirst=Jon&rft.date=2000-08-01&rft.volume=126&rft.issue=8&rft.spage=775&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Engineering&rft.issn=07339372&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 4 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - JOEEDU N1 - SubjectsTermNotLitGenreText - aquifers; contaminant plumes; data acquisition; data processing; Geoprobe; ground water; hydraulic conductivity; in situ; instruments; measurement; mobility; observation wells; pollution; porous materials; protection; techniques; unconfined aquifers; water management ER - TY - JOUR T1 - Eutrophication and contaminants in aquatic ecosystems AN - 51864904; 2004-026661 AB - Eutrophication and persistent pollutants are two of the main environmental problems in European marine and fresh-water ecosystems. As they tend to co-occur, interactive processes between eutrophication and contaminants are suggested, that may lead to environmental effects that cannot be predicted from each process alone. In order to predict the consequences of remedial measures (changing the input of organic matter, nutrients and contaminants) it is important to understand mechanisms that alter the bioavailability and fate of contaminants. The environmental risks will depend on the speciation of contaminants and their association to media and matter and by that means affect exposure. Furthermore, the risks will depend on the mobility of the substances and their pathways in food chains. In 1995, the Swedish Environmental Protection Agency initiated a 5-year research program Interactions between EUtrophication and CONtaminants (EUCON). A background document was prepared listing a number of relevant questions and hypotheses. On the basis of this document a program was launched, addressing the problems related to the interaction between eutrophication and contaminants (persistent organic compounds and trace metals) in the marine environment, with focus on the Baltic Sea, and in lakes. This paper summarizes the state-of-the-art, hypotheses and highlights from the research program with emphasis on the implications and applications of the results. JF - Ambio AU - Skei, Jens AU - Larsson, Per AU - Rosenberg, Rutger AU - Jonsson, Per AU - Olsson, Mats AU - Broman, Dag A2 - Jonsson, Per A2 - Skei, Jens A2 - Kessler, Elisabeth Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 184 EP - 194 PB - Royal Swedish Academy of Sciences, Stockholm VL - 29 IS - 4-5 SN - 0044-7447, 0044-7447 KW - chlorinated hydrocarbons KW - phytoplankton KW - PCBs KW - organochlorine pesticides KW - ecosystems KW - plankton KW - cores KW - Interactions between Eutrophication and Contaminants KW - bioaccumulation KW - marine sediments KW - EUCON Project KW - transport KW - sediments KW - halogenated hydrocarbons KW - hydrophobic materials KW - Baltic Sea KW - processes KW - programs KW - insecticides KW - concentration KW - monitoring KW - food chains KW - pollutants KW - pelagic environment KW - pollution KW - effects KW - current research KW - dioxins KW - biota KW - nutrients KW - case studies KW - organic compounds KW - marine environment KW - DDT KW - eutrophication KW - coastal environment KW - pesticides KW - North Atlantic KW - aquatic environment KW - Atlantic Ocean KW - storage KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51864904?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ambio&rft.atitle=Eutrophication+and+contaminants+in+aquatic+ecosystems&rft.au=Skei%2C+Jens%3BLarsson%2C+Per%3BRosenberg%2C+Rutger%3BJonsson%2C+Per%3BOlsson%2C+Mats%3BBroman%2C+Dag&rft.aulast=Skei&rft.aufirst=Jens&rft.date=2000-08-01&rft.volume=29&rft.issue=4-5&rft.spage=184&rft.isbn=&rft.btitle=&rft.title=Ambio&rft.issn=00447447&rft_id=info:doi/ L2 - http://ambio.allenpress.com/perlserv/?request=index-html&ct=1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 82 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquatic environment; Atlantic Ocean; Baltic Sea; bioaccumulation; biota; case studies; chlorinated hydrocarbons; coastal environment; concentration; cores; current research; DDT; dioxins; ecosystems; effects; EUCON Project; eutrophication; food chains; halogenated hydrocarbons; hydrophobic materials; insecticides; Interactions between Eutrophication and Contaminants; marine environment; marine sediments; monitoring; North Atlantic; nutrients; organic compounds; organochlorine pesticides; PCBs; pelagic environment; pesticides; phytoplankton; plankton; pollutants; pollution; processes; programs; sediments; storage; transport ER - TY - JOUR T1 - Storm influence on the accumulation and lamination of sediments in deep areas of the northwestern Baltic proper AN - 51864890; 2004-026666 AB - The expanding occurrence of laminated surficial sediments in the Baltic proper has increased the possibilities to assess inter-annual variation in sediment accumulation over the past four decades. During the same period of time, wind speeds and wind directions in the area have been recorded continuously on Gotska Sandon. When studying the fine structure in three distinctly laminated sediment cores, selected from 55 cores collected within a 39 km (super 2) area, annual dry matter accumulation was found to correlate positively with the frequency of high wind speeds, reaching an optimum at gale force > or =14 m s (super -1) . This confirms that resuspended sediments contribute significantly to the sediment accumulation, with a mean rate of 2 mm yr (super -1) for 25 surficially laminated cores collected at depths of 115-145 m. Decadal changes in both storm frequency and sediment deposition were observed, which may have implications not only for the turnover of sediments and associated nutrients and contaminants, but also for interpretations using sediment cores as historical archives. Horizontal comparison of dated sediment layers in all cores revealed a record of substantial changes in deep-water conditions. Recent recolonization of large areas by benthic fauna, within the depth of 102-125 m, suggests that storm events in the early 1990s are responsible for substantially improved oxygen conditions. Although, bioturbation of laminated sediments, with a depth range of 0.5-5.5 cm in our samples, creates a false picture of an earlier improvement. JF - Ambio AU - Eckhell, Jan AU - Jonsson, Per AU - Meili, Markus AU - Carman, Rolf A2 - Jonsson, Per A2 - Skei, Jens A2 - Kessler, Elisabeth Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 238 EP - 245 PB - Royal Swedish Academy of Sciences, Stockholm VL - 29 IS - 4-5 SN - 0044-7447, 0044-7447 KW - interannual variations KW - marine sedimentation KW - cores KW - acoustical methods KW - marine sediments KW - varves KW - sediments KW - velocity KW - thickness KW - storms KW - depositional environment KW - ocean floors KW - sedimentary structures KW - Baltic Sea KW - laminations KW - sedimentation KW - geophysical methods KW - suspension KW - rates KW - planar bedding structures KW - deposition KW - marine environment KW - side-scanning methods KW - North Atlantic KW - winds KW - sonar methods KW - Atlantic Ocean KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51864890?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ambio&rft.atitle=Storm+influence+on+the+accumulation+and+lamination+of+sediments+in+deep+areas+of+the+northwestern+Baltic+proper&rft.au=Eckhell%2C+Jan%3BJonsson%2C+Per%3BMeili%2C+Markus%3BCarman%2C+Rolf&rft.aulast=Eckhell&rft.aufirst=Jan&rft.date=2000-08-01&rft.volume=29&rft.issue=4-5&rft.spage=238&rft.isbn=&rft.btitle=&rft.title=Ambio&rft.issn=00447447&rft_id=info:doi/ L2 - http://ambio.allenpress.com/perlserv/?request=index-html&ct=1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 34 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - acoustical methods; Atlantic Ocean; Baltic Sea; cores; deposition; depositional environment; geophysical methods; interannual variations; laminations; marine environment; marine sedimentation; marine sediments; North Atlantic; ocean floors; planar bedding structures; rates; sedimentary structures; sedimentation; sediments; side-scanning methods; sonar methods; storms; suspension; thickness; varves; velocity; winds ER - TY - JOUR T1 - Comparison of temporal trends (1940s-1990s) of DDT and PCB in Baltic sediment and biota in relation to eutrophication AN - 51864512; 2004-026662 AB - Comparative temporal trend studies of Sigma DDT and PCB on the Baltic pollution, using matrices from Baltic biota and dated lamina from sediment cores in anoxic sediment areas of the Baltic (no bioturbation) have been carried out. Chemical analyses of consecutive laminas of the cores representing individual years were compared to long-term temporal trend monitoring of Baltic biota based on annual sampling and analyses. Earlier studies of sediment cores from the Baltic have often indicated increasing concentrations of halogenated organic compounds in recent time whereas monitoring of Baltic biota showed decreasing concentrations from the 1970s and onwards. In the present study two sediment cores from the northwestern Baltic proper indicate a concentration (dry weight basis) peak in the same time period as for biota, but the decrease during recent decades is slower than for biota. In lamina representing the period 1940-1950 remarkably high concentrations of both PCB and delta DDT were found. Interestingly also a high proportion of nonmetabolized DDT was found in these old lamina, whereas lamina representing 1960-1970 showed a low portion of nonmetabolized DDT and high portions of the metabolites DDE and DDD during the period 1970-1998. The results are discussed in relation to resuspension of sediments, diffusion and interstitial transport of halogenated organic compounds in the sediment cores. The results indicate the importance of resuspension of sediment and that carbon normalized data are inappropriate for interpretation of temporal trends. The results also show that we have no appropriate model to interpret the pollution of the Baltic by halogenated organic compounds, retrospectively, by using lamina from anoxic sediment cores, but that we urgently need more knowledge on the important retention mechanisms in sediment. JF - Ambio AU - Olsson, Mats AU - Bignert, Anders AU - Eckhell, Jan AU - Jonsson, Per A2 - Jonsson, Per A2 - Skei, Jens A2 - Kessler, Elisabeth Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 195 EP - 201 PB - Royal Swedish Academy of Sciences, Stockholm VL - 29 IS - 4-5 SN - 0044-7447, 0044-7447 KW - chlorinated hydrocarbons KW - terrestrial environment KW - PCBs KW - organochlorine pesticides KW - Europe KW - cores KW - bioaccumulation KW - marine sediments KW - sediments KW - halogenated hydrocarbons KW - Baltic region KW - Baltic Sea KW - insecticides KW - concentration KW - toxic materials KW - monitoring KW - annual variations KW - pollutants KW - pollution KW - biota KW - organic compounds KW - marine environment KW - DDT KW - eutrophication KW - temporal distribution KW - pesticides KW - North Atlantic KW - Atlantic Ocean KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51864512?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ambio&rft.atitle=Comparison+of+temporal+trends+%281940s-1990s%29+of+DDT+and+PCB+in+Baltic+sediment+and+biota+in+relation+to+eutrophication&rft.au=Olsson%2C+Mats%3BBignert%2C+Anders%3BEckhell%2C+Jan%3BJonsson%2C+Per&rft.aulast=Olsson&rft.aufirst=Mats&rft.date=2000-08-01&rft.volume=29&rft.issue=4-5&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Ambio&rft.issn=00447447&rft_id=info:doi/ L2 - http://ambio.allenpress.com/perlserv/?request=index-html&ct=1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - annual variations; Atlantic Ocean; Baltic region; Baltic Sea; bioaccumulation; biota; chlorinated hydrocarbons; concentration; cores; DDT; Europe; eutrophication; halogenated hydrocarbons; insecticides; marine environment; marine sediments; monitoring; North Atlantic; organic compounds; organochlorine pesticides; PCBs; pesticides; pollutants; pollution; sediments; temporal distribution; terrestrial environment; toxic materials ER - TY - JOUR T1 - Geochemical evolution of ground water and transport of mercury at the Sulphur Bank mercury Superfund site in Northern California, USA AN - 51540185; 2006-074081 AB - The Sulphur Bank Mercury Mine is located on the shore of Clear Lake, Lake County, California. Mining ceased in 1957 and the open pit filled with water, creating Herman Impoundment. Herman Impoundment is a sink for ground water and also receives geothermal waters upwelling through fractured bedrock. The water in the pit is acidic due largely to the oxidation of hydrogen sulfide and sulfide minerals. Herman Impoundment and Clear Lake are separated by about 250 m of waste rock piles and the pit water level is 3.8 m greater than that of the lake. Subsurface outflow is a major component of discharge from the pit with ground water migrating to Clear Lake through the mercury-enriched waste piles. Water quality samples were collected along a hypothetical flowpath: (1) Herman Impoundment surface water in the vicinity of spring discharges (east end), (2) Herman Impoundment surface water (west end), (3) ground water sample from well MW-13 proximal to Clear Lake. Water pH decreases from 3.18 at (1) to 3.08 at (2) to less than 3.00 in the monitoring wells, while sulfate increases from 2390 to 4260 mg/L. Of particular importance, dissolved Hg increases from 1 ug/L near the spring discharge area of Herman Impoundment to 17 ug/L in the monitoring well nearest to Clear Lake. Other interesting and important geochemical trends will be discussed as well. JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Lechler, P J AU - Jewett, D G AU - Anonymous Y1 - 2000/08// PY - 2000 DA - August 2000 EP - unpaginated PB - [International Geological Congress], [location varies] VL - 31 KW - United States KW - water quality KW - mines KW - sulfate ion KW - Clear Lake KW - pollution KW - hydrochemistry KW - hydrothermal conditions KW - ground water KW - California KW - Sulphur Bank KW - metals KW - springs KW - Lake County California KW - Northern California KW - geochemistry KW - pH KW - abandoned mines KW - Superfund sites KW - mercury KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51540185?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=Geochemical+evolution+of+ground+water+and+transport+of+mercury+at+the+Sulphur+Bank+mercury+Superfund+site+in+Northern+California%2C+USA&rft.au=Lechler%2C+P+J%3BJewett%2C+D+G%3BAnonymous&rft.aulast=Lechler&rft.aufirst=P&rft.date=2000-08-01&rft.volume=31&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Brazil 2000; 31st international geological congress N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by International Geological Congress Organizational Committee N1 - Date revised - 2006-01-01 N1 - SuppNotes - File G2101020.PDF N1 - Last updated - 2013-07-18 N1 - CODEN - IGABBY N1 - SubjectsTermNotLitGenreText - abandoned mines; California; Clear Lake; geochemistry; ground water; hydrochemistry; hydrothermal conditions; Lake County California; mercury; metals; mines; Northern California; pH; pollution; springs; sulfate ion; Sulphur Bank; Superfund sites; United States; water quality ER - TY - JOUR T1 - A two-region nonequilibrium model for solute transport in solution conduits in karstic aquifers AN - 51187510; 2001-003536 AB - A two-region nonequilibrium model was used to calibrate initial solute-transport parameter estimates generated from tracer-breakthrough curves (TBCs) developed from tracer tests conducted in uni-axial solution conduits in karstic aquifers. Two-region nonequilibrium models account for partitioning of solute into mobile- and immobile-fluid regions to produce a more representative model fit to the strong tails associated with TBCs than do equilibrium models. The nonequilibrium model resulted in an increase in average flow velocities and a decrease in longitudinal dispersion coefficients over comparable estimates using an equilibrium model. Increases in velocity and decreases in dispersion were obtained at the expense of including parameters that describe solute partitioning and mass transfer rate for the mobile- and immobile-fluid regions. In addition, nonidentifiable sorption and mass transfer parameters for the immobile-fluid regions could only be described in terms of upper and lower bounds using readily determined identifiable ratios representing solute partitioning and system constraints based on known physical properties. The identifiable ratios and system constraints serve to minimize model nonuniqueness and renders the nonidentification problem trivial. JF - Journal of Contaminant Hydrology AU - Field, Malcolm S AU - Pinsky, Paul F Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 329 EP - 351 PB - Elsevier, Amsterdam VL - 44 IS - 3-4 SN - 0169-7722, 0169-7722 KW - United States KW - solute transport KW - Quarry Spring KW - sorption KW - observation wells KW - karst KW - calibration KW - environmental analysis KW - ground water KW - partitioning KW - tracers KW - Tennessee KW - Hardin County Kentucky KW - Dyers Spring KW - injection KW - pollution KW - mathematical models KW - equilibrium KW - aquifers KW - Butler County Kentucky KW - Lost River Cave KW - Kentucky KW - hydraulic conductivity KW - rhodamine KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51187510?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=A+two-region+nonequilibrium+model+for+solute+transport+in+solution+conduits+in+karstic+aquifers&rft.au=Field%2C+Malcolm+S%3BPinsky%2C+Paul+F&rft.aulast=Field&rft.aufirst=Malcolm&rft.date=2000-08-01&rft.volume=44&rft.issue=3-4&rft.spage=329&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01697722 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2001-01-01 N1 - Number of references - 54 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; Butler County Kentucky; calibration; Dyers Spring; environmental analysis; equilibrium; ground water; Hardin County Kentucky; hydraulic conductivity; injection; karst; Kentucky; Lost River Cave; mathematical models; observation wells; partitioning; pollution; Quarry Spring; rhodamine; solute transport; sorption; Tennessee; tracers; United States ER - TY - JOUR T1 - Isotope hydrology dynamics of riverine wetlands in the Kankakee watershed, Indiana AN - 27756331; 2001-34-000091 (CE); 0506526 (EN) AB - Wetland restoration activities may disturb shallow ground-water flow dynamics. There may be unintentional sources of water flowing into a constructed wetland that could compromise the long-term viability of a wetland function. Measurement of naturally-occurring isotopes in the hydrosphere can provide an indication of provenance, flow paths or components, and residence times or ages of wetland ground-water flow systems. Hydraulic head measurements may not provide sufficient detail of shallow flow disturbances and can be complemented by analyzing isotopes in waters flowing through the wetland. Two north-central Indiana wetlands in the Kankakee watershed are being studied to determine the adequacy of wetland restoration activities. The native LaSalle wetland and the restored Hog Marsh wetland have contrasting ground-water flow regimes. The conservative water isotopes super(18)O, super(2)H, and super(3)H, and selected solute isotopes super(13)C, super(14)C, super(15)N, super(34)S, super(87)Sr, and super(206-208)Pb, demonstrate the complexity of ground-water flow in Hog Marsh compared to the established flow regime at the LaSalle wetland. JF - J Am Water Res Assoc AU - Sidle, W C AU - Arihood, L AU - Bayless, R AD - U.S. Environmental Protection Agency, Cincinnati, OH, USA PY - 2000 SP - 771 EP - 790 PB - AMERICAN WATER RESOURCES ASSOCIATION, 4 West Federal St, P O Box 1626, Middleburg, VA, 20118-1626, USA, [mailto:info@awra.org], [URL:http://www.awra.org] VL - 36 IS - 4 SN - 1093-474X, 1093-474X KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Wetlands KW - Isotopes KW - Watersheds KW - Marshes KW - Dynamics KW - Restoration KW - Complexity KW - Hydraulics KW - Construction KW - Hydrology KW - Solutes KW - Pressure head KW - Article KW - EE 931.1:Mechanics KW - EE 444.2:Groundwater KW - EE 483.1:Soils and Soil Mechanics KW - EE 631.1:Fluid Flow (General) KW - EE 444:Water Resources KW - EE 804:Chemical Products Generally (EN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/27756331?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=J+Am+Water+Res+Assoc&rft.atitle=Isotope+hydrology+dynamics+of+riverine+wetlands+in+the+Kankakee+watershed%2C+Indiana&rft.au=Sidle%2C+W+C%3BArihood%2C+L%3BBayless%2C+R&rft.aulast=Sidle&rft.aufirst=W&rft.date=2000-08-01&rft.volume=36&rft.issue=4&rft.spage=771&rft.isbn=&rft.btitle=&rft.title=J+Am+Water+Res+Assoc&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Prediction of population-level response from mysid toxicity test data using population modeling techniques AN - 19930680; 5549460 AB - Acute and chronic bioassay statistics are used to evaluate the toxicity and risks of chemical stressors to the mysid shrimp Americamysis bahia (formerly Mysidopsis bahia). These include LC50 values from acute tests, chronic values (the geometric mean of the no-observed-effect concentration and the lowest-observed-effect concentration from 7-d and life-cycle tests), and U.S. Environmental Protection Agency water quality criterion continuous concentration (CCC). Because these statistics are generated from responses of individual organisms, the relationships of these statistics to significant effects at higher levels of ecological organization are unknown. This study was conducted to evaluate the quantitative relationships between toxicity test statistics and a concentration-based statistic derived from exposure-response models relating projected population growth rate to stressor concentration. This statistic, C*, describes the concentration above which mysid populations are projected to decline in abundance as determined using population modeling techniques. An analysis of responses of A. bahia to 10 metals, nine organic compounds, and ammonia surprisingly indicated the acute LC50 to be the best predictor of C*, followed by the chronic value from life-cycle tests, which predicted population-level response almost equally as well. The chronic value for the 7-d test was less predictive of population-level effects. The CCC was lower than C* for 94% of the compounds evaluated, indicating the criterion value to be protective of population-level effects for A. bahia, as intended. JF - Environmental Toxicology and Chemistry AU - Kuhn, A AU - Munns, WR Jr AU - Poucher, S AU - Champlin, D AU - Lussier, S AD - U.S. Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, Rhode Island 02282, USA Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 2364 EP - 2371 VL - 19 IS - 9 SN - 0730-7268, 0730-7268 KW - risk assessment KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts; Toxicology Abstracts KW - toxicity testing KW - Prediction KW - Water Pollution KW - water quality KW - Mysidopsis bahia KW - Shrimp KW - Statistics KW - life cycle analysis KW - Population Dynamics KW - Xenobiotics KW - Ecological Effects KW - Models KW - Ecology KW - population growth KW - Data Interpretation KW - Populations KW - Metals KW - Crustaceans (Decapod) (Shrimps and Prawns) KW - Ammonia KW - Toxicity KW - Population statistics KW - Model Studies KW - Americamysis bahia KW - EPA KW - USA KW - Bioassays KW - Water Pollution Effects KW - abundance KW - X 24240:Miscellaneous KW - P 2000:FRESHWATER POLLUTION KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19930680?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Prediction+of+population-level+response+from+mysid+toxicity+test+data+using+population+modeling+techniques&rft.au=Kuhn%2C+A%3BMunns%2C+WR+Jr%3BPoucher%2C+S%3BChamplin%2C+D%3BLussier%2C+S&rft.aulast=Kuhn&rft.aufirst=A&rft.date=2000-08-01&rft.volume=19&rft.issue=9&rft.spage=2364&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2003-12-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Prediction; Xenobiotics; Populations; Models; toxicity testing; EPA; Metals; water quality; Bioassays; life cycle analysis; Ammonia; population growth; Toxicity; abundance; Ecology; Water Pollution; Statistics; Crustaceans (Decapod) (Shrimps and Prawns); Population statistics; Shrimp; Population Dynamics; Water Pollution Effects; Ecological Effects; Data Interpretation; Model Studies; Americamysis bahia; Mysidopsis bahia; USA ER - TY - JOUR T1 - Test of capital sigma polycyclic aromatic hydrocarbon model at a creosote-contaminated site, Elliott Bay, Washington, USA AN - 19921060; 5549461 AB - At a creosote-contaminated site, 33 individual polycyclic aromatic hydrocarbon (PAH) compounds were quantified in sediment and interstitial water (IW) at 30 stations. These compounds included the 13 parent PAHs from the capital sigma PAH model, 7 additional parent, and 13 alkylated compounds. Fourteen groups of alkylated compounds were also quantified in sediment extracts. Amphipod mortality using the capital sigma PAH model was predicted within plus or minus 10% of the observed when freely dissolved concentrations of PAHs with log K sub(ow)s 500 ppm dry). However, most compounds were not in equilibrium with the sediment at stations with lower bulk concentrations but were in equilibrium with dissolved organic matter throughout the study area. JF - Environmental Toxicology and Chemistry AU - Ozretich, RJ AU - Ferraro, S P AU - Lamberson, JO AU - Cole, F A AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Hatfield Marine Science Center, 2111 Southeast Marine Science Drive, Newport, Oregon 97365-5260, USA Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 2378 EP - 2389 VL - 19 IS - 9 SN - 0730-7268, 0730-7268 KW - USA, Washington, Elliott Bay KW - amphipods KW - creosote KW - polycyclic aromatic hydrocarbons KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts; Toxicology Abstracts KW - Prediction KW - Crustaceans (Amphipod) KW - Water Pollution KW - Death KW - Contamination KW - INE, USA, Washington, Seattle, Elliott Bay KW - Model Testing KW - INE, USA, Washington KW - USA, Washington KW - Sediment Contamination KW - Sediment pollution KW - Mortality KW - Polycyclic aromatic hydrocarbons KW - Mathematical models KW - Hydrocarbons KW - dissolved organic matter KW - Amphipods KW - Toxicity KW - Contaminated sediments KW - Model Studies KW - Creosote KW - Water Pollution Effects KW - P 1000:MARINE POLLUTION KW - X 24156:Environmental impact KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19921060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Test+of+capital+sigma+polycyclic+aromatic+hydrocarbon+model+at+a+creosote-contaminated+site%2C+Elliott+Bay%2C+Washington%2C+USA&rft.au=Ozretich%2C+RJ%3BFerraro%2C+S+P%3BLamberson%2C+JO%3BCole%2C+F+A&rft.aulast=Ozretich&rft.aufirst=RJ&rft.date=2000-08-01&rft.volume=19&rft.issue=9&rft.spage=2378&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2003-12-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Mortality; Polycyclic aromatic hydrocarbons; Mathematical models; Contamination; Sediment pollution; dissolved organic matter; polycyclic aromatic hydrocarbons; Toxicity; Crustaceans (Amphipod); Water Pollution; Death; Hydrocarbons; Creosote; Contaminated sediments; Prediction; Amphipods; Water Pollution Effects; Sediment Contamination; Model Testing; Model Studies; USA, Washington; INE, USA, Washington, Seattle, Elliott Bay; INE, USA, Washington ER - TY - JOUR T1 - Quality-assurance study of marine lipid-class determination using Chromarod/Iatroscan super(R) thin-layer chromatography-flame ionization detector AN - 18922058; 5549439 AB - An Iatroscan super(R) thin-layer chromatography-flame ionization detector has been utilized to quantify lipid classes in marine samples. This method was evaluated relative to established quality-assurance (QA) procedures used for the gas chromatographic analysis of PCBs. A method for extracting and analyzing eight major lipid classes in the ribbed mussel (Guekensia demissus) was developed. The analytical method met the QA criteria prescribed for consistent external calibrations, low blanks, complete extraction of all lipid classes, and precise replicate analysis. Matrix and blank spikes were satisfactorily recovered (50-130%), provided that the samples contained a large enough mass (>4% dry weight) of total lipids to overcome the absorption of polar lipids on glassware. The use of frozen mussel homogenate as a standard reference material was not possible because of lipid degradation, particularly of triacylglycerols and phospholipids. Also, total lipids measured gravimetrically significantly decreased in frozen samples, which could influence bioaccumulation predictions. A laboratory intercalibration was performed using a mussel homogenate and chloroform extract, which verified the accuracy of the method and the lipid-class identification. Characterizing the structure of one class of polar lipids, the acetone mobile polar lipid (AMPL), showed that it contained no ester linkages or free/sterically unhindered-OH groups; however, the AMPL did contain an ether linkage. JF - Environmental Toxicology and Chemistry AU - Bergen, B J AU - Quinn, J G AU - Parrish, C C AD - U.S. Environmental Protection Agency, NHEERL, Atlantic Ecology Division, Narragansett, Rhode Island 02882 and University of Rhode Island, Graduate School of Oceanography, Narragansett, Rhode Island 02882, USA Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 2189 EP - 2197 VL - 19 IS - 9 SN - 0730-7268, 0730-7268 KW - Bivalves KW - determination KW - ASFA 3: Aquatic Pollution & Environmental Quality; Toxicology Abstracts KW - Molecular structure KW - Marine KW - Chromatographic techniques KW - Lipids KW - Calibration KW - Guekensia demissus KW - Methodology KW - Bivalvia KW - Standardization KW - Marine environment KW - Analytical techniques KW - Thin-layer chromatography KW - Chemical analysis KW - PCB KW - X 24222:Analytical procedures KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18922058?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Quality-assurance+study+of+marine+lipid-class+determination+using+Chromarod%2FIatroscan+super%28R%29+thin-layer+chromatography-flame+ionization+detector&rft.au=Bergen%2C+B+J%3BQuinn%2C+J+G%3BParrish%2C+C+C&rft.aulast=Bergen&rft.aufirst=B&rft.date=2000-08-01&rft.volume=19&rft.issue=9&rft.spage=2189&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-12-21 N1 - SubjectsTermNotLitGenreText - Molecular structure; Standardization; Chromatographic techniques; Lipids; Analytical techniques; Calibration; Chemical analysis; PCB; Methodology; Marine environment; Thin-layer chromatography; Bivalvia; Guekensia demissus; Marine ER - TY - JOUR T1 - Evaluation of methods to remove ammonia interference in marine sediment toxicity tests AN - 18024937; 4752688 AB - Ammonia naturally accumulates to high concentrations in nonsurficial marine sediments. It can also interfere and confound interpretation of toxicity from persistent anthropogenic chemicals in tests with laboratory amphipods. Renewal of overlying water has become a standardized procedure to decrease pore-water ammonia. Our objective was to propose an alternative technique for decreasing pore-water ammonia concentrations. Sediment samples with ammonia concentrations of 70 and 155 mg/L were purged of toxic concentrations in pore-water ammonia using the existing procedure of performing two renewals of overlying water per day. A thin-layer technique, which involved increasing the sediment surface area during the purging period, decreased the ammonia concentration by as much as 4.5-fold faster than the conventional purging protocol. Minimal decreases in concentrations of polycyclic aromatic hydrocarbons, heavy metals, and total organic carbon were found among all the purging techniques. Toxicity tests with the marine amphipod Ampelisca abdita suggest that minimizing the time required to purge a sediment of ammonia is critical in maintaining the integrity of the sample. The thin-layer purging technique appears to be an effective method of decreasing pore-water ammonia concentrations in sediments before laboratory toxicity testing with amphipods. JF - Environmental Toxicology and Chemistry AU - Ferretti, JA AU - Calesso, D F AU - Hermon, T R AD - U.S. Environmental Protection Agency, 2890 Woodbridge Avenue, Edison, New Jersey 08837, USA, ferretti.jim@epa.gov Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 1935 EP - 1941 VL - 19 IS - 8 SN - 0730-7268, 0730-7268 KW - Ampelisca abdita KW - Amphipoda KW - methodology KW - thin-layer technique KW - Toxicology Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Crustaceans (Amphipod) KW - Pore water KW - Toxicity tests KW - Water analysis KW - Marine Sediments KW - Laboratory methods KW - Sampling KW - Testing Procedures KW - Marine KW - Sediment pollution KW - Amphelisca abdita KW - Hydrocarbons KW - Amphipods KW - Ammonia KW - Marine deposits KW - Interstitial waters KW - Toxicity KW - Interstitial Water KW - Sediments KW - Bioassays KW - Marine organisms KW - Hydrocarbon KW - Toxicity (see also Lethal limits) KW - Toxicity testing KW - Q5 08502:Methods and instruments KW - SW 3030:Effects of pollution KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - X 24221:Toxicity testing KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18024937?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Evaluation+of+methods+to+remove+ammonia+interference+in+marine+sediment+toxicity+tests&rft.au=Ferretti%2C+JA%3BCalesso%2C+D+F%3BHermon%2C+T+R&rft.aulast=Ferretti&rft.aufirst=JA&rft.date=2000-08-01&rft.volume=19&rft.issue=8&rft.spage=1935&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pore water; Sediment pollution; Bioassays; Ammonia; Water analysis; Toxicity tests; Toxicity testing; Sediments; Laboratory methods; Marine organisms; Crustaceans (Amphipod); Interstitial waters; Marine deposits; Hydrocarbon; Sampling; Toxicity (see also Lethal limits); Testing Procedures; Marine Sediments; Hydrocarbons; Amphipods; Interstitial Water; Toxicity; Amphelisca abdita; Marine ER - TY - JOUR T1 - Effects of water quality on development of Xenopus laevis: a frog embryo teratogenesis assay--Xenopus assessment of surface water associated with malformations in native anurans AN - 18004680; 4752709 AB - The purpose of this work was to determine if surface water from a site in Minnesota, USA, with malformed anurans was able to elicit adverse developmental effects in the frog embryo teratogenesis assay: Xenopus (FETAX) and to isolate and identify the factors responsible for the effects. In the standard FETAX test, 25 organisms are placed in a 10-ml volume of solution that is renewed daily. The organisms are assessed for abnormal development and the test is terminated at 96 h. Under these conditions, the site water adversely affected craniofacial development, gastrointestinal development, and growth. However, these effects were eliminated by each of several different treatments, including diluting the surface-water sample with the standard testing solution, adding dry salts directly to the surface water, testing the organisms in larger volumes of site water, and evaporating site water to increase the concentration of total dissolved solids. These results are consistent with the hypothesis that the low ion concentrations found in this particular site water were responsible for the developmental effects observed in FETAX. This hypothesis was strengthened further when a reconstituted water, made with deionized water and reagent-grade salts to mimic the content of the site water, affected survival, growth, and development similarly to the surface water. In addition, substantial ammonia accumulation in the FETAX tests was documented. These data suggest that the inherent variability in water quality of field-collected samples is important and could result in artifactual developmental effects when using FETAX. As such, the developmental toxicity observed in these FETAX studies is probably not relevant to malformations observed in native anuran species. To obviate this type of problem, the volumes used in the FETAX protocol should be increased for better organism performance and to reduce the possibility of ammonia toxicity. JF - Environmental Toxicology and Chemistry AU - Tietge, JE AU - Ankley, G T AU - DeFoe, D L AU - Holcombe, G W AU - Jensen, K M AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, Minnesota 55804, USA, tietge.joe@epa.gov Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 2114 EP - 2121 VL - 19 IS - 8 SN - 0730-7268, 0730-7268 KW - African clawed frog KW - Clawed frogs KW - FETAX KW - Xenopus laevis KW - abnormalities KW - embryonic development KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Toxicology Abstracts; Pollution Abstracts KW - Organogenesis KW - Surface water KW - Morphogenesis KW - Pollution effects KW - Surface Water KW - Freshwater KW - Water quality KW - Teratogenesis KW - Embryos and embryonic development KW - Malformations KW - Frogs KW - Xenopus KW - Embryos KW - Amphibians (Frogs) KW - Ammonia KW - Amphibians KW - Water Quality KW - Toxicity KW - USA, Minnesota KW - Amphibia KW - Water Pollution Effects KW - Morphology KW - Surface water (see also Lakes, Ponds, Streams) KW - Teratogenicity KW - Teratogens KW - Toxicity (see also Lethal limits) KW - Pollution (Water) KW - Toxicity testing KW - Q5 08504:Effects on organisms KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution KW - X 24221:Toxicity testing KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18004680?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Effects+of+water+quality+on+development+of+Xenopus+laevis%3A+a+frog+embryo+teratogenesis+assay--Xenopus+assessment+of+surface+water+associated+with+malformations+in+native+anurans&rft.au=Tietge%2C+JE%3BAnkley%2C+G+T%3BDeFoe%2C+D+L%3BHolcombe%2C+G+W%3BJensen%2C+K+M&rft.aulast=Tietge&rft.aufirst=JE&rft.date=2000-08-01&rft.volume=19&rft.issue=8&rft.spage=2114&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Organogenesis; Morphogenesis; Pollution effects; Teratogens; Water quality; Malformations; Surface water; Embryos; Teratogenicity; Amphibia; Ammonia; Morphology; Toxicity testing; Teratogenesis; Amphibians (Frogs); Surface water (see also Lakes, Ponds, Streams); Toxicity (see also Lethal limits); Pollution (Water); Embryos and embryonic development; Frogs; Water Pollution Effects; Amphibians; Water Quality; Toxicity; Surface Water; Xenopus; USA, Minnesota; Freshwater ER - TY - JOUR T1 - Techniques and methods for the determination of haloacetic acids in potable water AN - 17770132; 4820595 AB - Haloethanoic (haloacetic) acids (HAAs) are formed as disinfection byproducts (DBPs) during the chlorination of natural water to make it fit for consumption. Sundry analytical techniques have been applied in order to determine the concentrations of the HAAs in potable water supplies: gas chromatography (GC-MS, GC-ECD); capillary electrophoresis (CE); liquid chromatography (LC), including ion chromatography (IC); and electrospray ionization mass spectrometry (ESI-MS). Detection limits required to analyze potable water samples can be regularly achieved only by GC-ECD and ESI-MS. Without improvements in preconcentration or detector sensitivity, CE and LC will not find application to potable water supplies. The predominant GC-ECD methods use either diazomethane or acidified methanol to esterify (methylate) the carboxylic acid moiety. For HAA5 analytes, regulated under the EPA's Stage 1 DBP Rule, diazomethane is satisfactory. For HAA9 data gathered under the Information Collection Rule, acidified methanol outperforms diazomethane, which suffers from photo-promoted side reactions, especially for the brominated trihaloacetic acids. Although ESI-MS can meet sensitivity and selectivity requirements, limited instrumentation availability means this technique will not be widely used for the time being. However, ESI-MS can provide valuable confirmatory information when coupled with GC-ECD in a research setting. JF - Journal of Environmental Monitoring AU - Urbansky, E T AD - United States Environmental Protection Agency (EPA), Office of Research and Development, National Risk Management Research Laboratory, Water Supply and Water Resources Division, 26 West Martin Luther King Drive, Cincinnati, OH 45268, USA, urbansky.edward@epa.gov Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 285 EP - 291 VL - 2 IS - 4 SN - 1464-0325, 1464-0325 KW - haloacetic acids KW - Water Resources Abstracts; Pollution Abstracts KW - Electrophoresis KW - Water sampling KW - Gas chromatography KW - Liquid chromatography KW - Mass spectrometry KW - Drinking water KW - Sampling methods KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17770132?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Monitoring&rft.atitle=Techniques+and+methods+for+the+determination+of+haloacetic+acids+in+potable+water&rft.au=Urbansky%2C+E+T&rft.aulast=Urbansky&rft.aufirst=E&rft.date=2000-08-01&rft.volume=2&rft.issue=4&rft.spage=285&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Monitoring&rft.issn=14640325&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Electrophoresis; Water sampling; Liquid chromatography; Gas chromatography; Mass spectrometry; Drinking water; Sampling methods ER - TY - JOUR T1 - The Disinfection By-Products Dichloro-, Dibromo-, and Bromochloroacetic Acid Impact Intestinal Microflora and Metabolism in Fischer 344 Rats upon Exposure in Drinking Water AN - 17725426; 4796626 AB - Human consumption of chlorinated drinking water has been linked epidemiologically to bladder, kidney, and rectal cancers. The disinfection by-product (DBP) dichloroacetic acid is a hepatocarcinogen in Fischer 344 rats and B6C3F1 mice. The objective of this study is to determine the effect of the DBPs dichloro-, bromochloro-, and dibromoacetic acids (DCA, BCA, DBA) on intestinal microbial populations and their metabolism, with emphasis on enzymes involved in the bioactivation of procarcinogens and promutagens. One-month-old male Fischer 344 rats were provided water ad libitum containing 1 g/l DCA, BCA, or DBA for up to 5 weeks. At 1, 3, and 5 weeks of treatment, beta -glucuronidase (GLR), beta -galactosidase (GAL), beta -glucosidase (GLU), nitroreductase (NR), azoreductase (AR), and dechlorinase (DC) activities were determined in cecal and small and large intestinal homogenates. After 5 weeks of treatment, intestinal populations were enumerated on selective media. Cecal GAL (DCA, BCA, DBA) and GLR (DCA, DBA) activities were reduced after 1 and 3 weeks of treatment and GAL activity was elevated at 5 weeks (BCA). Large intestinal GAL (DCA, BCA) and GLU (DCA, BCA, DBA) activities were elevated after 5 weeks of treatment. Week 5 cecal AR (DCA, BCA, DBA), NR (DCA), and DC (DCA, DBA) activities were reduced. Even though some significant changes in intestinal populations were observed, use of selective media was not sensitive enough to explain fluctuations in enzyme activity. Haloacetic acids in the drinking water alter intestinal metabolism, which could influence bioactivation of promutagens and procarcinogens in the drinking water. JF - Toxicological Sciences AU - George, SE AU - Nelson, G M AU - Swank, A E AU - Brooks, L R AU - Bailey, K AU - George, M AU - DeAngelo, A AD - Environmental Carcinogenesis Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 282 EP - 289 VL - 56 IS - 2 SN - 1096-6080, 1096-6080 KW - bromochloroacetic acid KW - dibromoacetic acid KW - dichloroacetic acid KW - rats KW - Water Resources Abstracts; Aqualine Abstracts; Toxicology Abstracts KW - Testing Procedures KW - Water supplies (Potable) KW - Disinfection KW - Byproducts KW - Toxicity KW - Intestinal microflora KW - Drinking Water KW - Public Health KW - Acids KW - Public-health KW - Chlorination KW - Acidity KW - Toxicity (see also Lethal limits) KW - Drinking water KW - X 24153:Metabolism KW - SW 3060:Water treatment and distribution KW - AQ 00004:Water Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17725426?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=The+Disinfection+By-Products+Dichloro-%2C+Dibromo-%2C+and+Bromochloroacetic+Acid+Impact+Intestinal+Microflora+and+Metabolism+in+Fischer+344+Rats+upon+Exposure+in+Drinking+Water&rft.au=George%2C+SE%3BNelson%2C+G+M%3BSwank%2C+A+E%3BBrooks%2C+L+R%3BBailey%2C+K%3BGeorge%2C+M%3BDeAngelo%2C+A&rft.aulast=George&rft.aufirst=SE&rft.date=2000-08-01&rft.volume=56&rft.issue=2&rft.spage=282&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Intestinal microflora; Disinfection; Drinking water; Water supplies (Potable); Byproducts; Public-health; Chlorination; Toxicity (see also Lethal limits); Acidity; Testing Procedures; Public Health; Drinking Water; Acids; Toxicity ER - TY - JOUR T1 - Cellular and Molecular Mechanisms of Action of Linuron: An Antiandrogenic Herbicide that Produces Reproductive Malformations in Male Rats AN - 17724790; 4796639 AB - Antiandrogenic chemicals alter sex differentiation by several different mechanisms. Some, like flutamide, procymidone, or vinclozolin compete with androgens for the androgen receptor (AR), inhibit AR-DNA binding, and alter androgen-dependent gene expression in vivo and in vitro. Finasteride and some phthalate esters demasculinize male rats by inhibiting fetal androgen synthesis. Linuron, which is a weak competitive inhibitor of AR binding (reported Ki of 100 mu M), alters sexual differentiation in an antiandrogenic manner. However, the pattern of malformations more closely resembles that produced by the phthalate esters than by vinclozolin treatment. The present study was designed to determine if linuron acted as an AR antagonist in vitro and in vivo. In vitro, we (1) confirmed the affinity of linuron for the rat AR, and found (2) that linuron binds human AR (hAR), and (3) acts as an hAR antagonist. Linuron competed with an androgen for rat prostatic AR (EC sub(50) = 100-300 mu M) and human AR (hAR) in a COS cell-binding assay (EC sub(50) = 20 mu M). Linuron inhibited dihydrotestosterone (DHT)-hAR induced gene expression in CV-1 and MDA-MB-453-KB2 cells (EC sub(50) = 10 mu M) at concentrations that were not cytotoxic. In short-term in vivo studies, linuron treatment reduced testosterone- and DHT-dependent tissue weights in the Hershberger assay (oral 100 mg/kg/d for 7 days, using castrate-immature-testosterone propionate-treated male rats; an assay used for decades to screen for AR agonists and antagonists) and altered the expression of androgen-regulated ventral prostate genes (oral 100 mg/kg/d for 4 days). Histological effects of in utero exposure to linuron (100 mg/kg/d, day 14-18) or DBP (500 mg/kg/d, day 14 to postnatal day 3) on the testes and epididymides also are shown here. Taken together, these results support the hypothesis that linuron is an AR antagonist both in vivo and in vitro, but it remains to be determined if linuron alters sexual differentiation by additional mechanisms of action. JF - Toxicological Sciences AU - Lambright, C AU - Ostby, J AU - Bobseine, K AU - Wilson, V AU - Hotchkiss, A K AU - Mann, P C AU - Gray, LE Jr AD - U.S. EPA, NHEERL, Research Triangle Park, NC, USA Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 389 EP - 399 VL - 56 IS - 2 SN - 1096-6080, 1096-6080 KW - rats KW - linuron KW - Toxicology Abstracts KW - Reproduction KW - Teratogenicity KW - Herbicides KW - X 24132:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17724790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Cellular+and+Molecular+Mechanisms+of+Action+of+Linuron%3A+An+Antiandrogenic+Herbicide+that+Produces+Reproductive+Malformations+in+Male+Rats&rft.au=Lambright%2C+C%3BOstby%2C+J%3BBobseine%2C+K%3BWilson%2C+V%3BHotchkiss%2C+A+K%3BMann%2C+P+C%3BGray%2C+LE+Jr&rft.aulast=Lambright&rft.aufirst=C&rft.date=2000-08-01&rft.volume=56&rft.issue=2&rft.spage=389&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Herbicides; Teratogenicity; Reproduction ER - TY - JOUR T1 - Light- and nutrient-limited periphyton in low order streams of Oahu, Hawaii AN - 17692733; 4769372 AB - To date, most studies of light- and nutrient-limited primary productivity in forested streams have been carried out in deciduous forests of temperate, continental regions. Conceptual models of light and nutrient limitation have been developed from these studies, but their restricted geographic range reduces the generality of such models. Unlike temperate continental streams, streams on tropical high islands are characterized by flashy, unpredictable discharge and riparian canopies that do not vary seasonally. These contrasting conditions suggest that patterns of light and nutrient limitation in tropical streams may differ from those in temperate streams. The effects of light, and nitrogen and phosphorus availability on periphyton accrual (measured as chlorophyll a per unit area) were investigated using field experiments in 4 low-order streams on the island of Oahu, Hawaii. Levels of chlorophyll a in partially-shaded stream pools were significantly greater than in heavily-shaded pools, and nutrient-enrichment increased the level of chlorophyll a in partially-shaded pools but not in heavily-shaded pools. In each stream, phosphate enrichment resulted in an increase in the level of chlorophyll a, but nitrate enrichment had no effect. Spates following rainstorms occur frequently in these streams, and may increase periphyton productivity by increasing the flux of nutrients to algal cells. However, differences in inorganic nitrogen and phosphorus concentrations measured during spates and baseflow were small, and during some spates, concentrations of these two nutrients declined relative to baseflow concentrations. These observations suggest that phosphorus limitation was not alleviated by spates. JF - Hydrobiologia AU - Larned, ST AU - Santos AD - Coastal Ecology Branch, United States Environmental Protection Agency, Newport, OR 97365, U.S.A., larned.scott@epa.gov Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 101 EP - 111 PB - Kluwer Academic Publishers VL - 432 IS - 1-3 SN - 0018-8158, 0018-8158 KW - USA, Hawaii KW - Ecology Abstracts; Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Chlorophyll KW - Primary Productivity KW - Nutrient availability KW - Phosphorus KW - Forests KW - Limiting factors KW - Freshwater KW - USA, Hawaii, Oahu I. KW - Streams KW - Light effects KW - Nutrient deficiency KW - Periphyton KW - Nutrients (mineral) KW - Nitrogen KW - Q1 08462:Benthos KW - D 04310:Freshwater KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17692733?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrobiologia&rft.atitle=Light-+and+nutrient-limited+periphyton+in+low+order+streams+of+Oahu%2C+Hawaii&rft.au=Larned%2C+ST%3BSantos&rft.aulast=Larned&rft.aufirst=ST&rft.date=2000-08-01&rft.volume=432&rft.issue=1-3&rft.spage=101&rft.isbn=&rft.btitle=&rft.title=Hydrobiologia&rft.issn=00188158&rft_id=info:doi/10.1023%2FA%3A1004074004416 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Nutrient deficiency; Nutrients (mineral); Limiting factors; Periphyton; Light effects; Nutrient availability; Streams; Chlorophyll; Primary Productivity; Phosphorus; Forests; Nitrogen; USA, Hawaii, Oahu I.; Freshwater DO - http://dx.doi.org/10.1023/A:1004074004416 ER - TY - JOUR T1 - Estimation of regional trends in sulfur dioxide over the eastern United States AN - 17641743; 4795788 AB - Emission reductions were mandated in the Clean Air Act Amendments of 1990 with the expectation of concomitant reductions in ambient concentrations of atmospherically-transported pollutants. To evaluate the effectiveness of the legislated emission reductions using monitoring data, this paper proposes a two-stage approach for the estimation of regional trends and their standard errors. In the first stage, a generalized additive model (GAM) is fitted to airborne sulfur dioxide (SO sub(2)) data at each of 35 sites in the eastern United States to estimate the form and magnitude of the site-specific trend (defined as percent total change) from 1989 to 1995. This analysis is designed to adjust the SO sub(2) data for the influences of meteorology and season. In the second stage, the estimated trends are treated as samples with site-dependent measurement error from a Guassian random field with a stationary covariance function. Kriging methodology is adapted to construct spatially-smoothed estimates of the true trend for three large regions in the eastern U.S. Finally, a Bayesian analysis with Markov Chain Monte Carlo (MCMC) methods is used to obtain regional trend estimates and their standard errors, which take account of the estimation of the unknown covariance parameters as well as the stochastic variation of the random fields. Both spatial estimation techniques produced similar results in terms of regional trend and standard error. JF - Environmetrics AU - Holland, D M AU - De Oliveira, V AU - Cox, L H AU - Smith, R L AD - U.S. Environmental Protection Agency, Office of Research and Development, Research Triangle Park, NC 27711-0001, USA, holland.david@epa.gov Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 373 EP - 393 VL - 11 IS - 4 SN - 1180-4009, 1180-4009 KW - USA, Eastern KW - Pollution Abstracts KW - Air pollution KW - Sulfur dioxide KW - Meteorology KW - Pollution surveys KW - Seasonal variations KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17641743?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmetrics&rft.atitle=Estimation+of+regional+trends+in+sulfur+dioxide+over+the+eastern+United+States&rft.au=Holland%2C+D+M%3BDe+Oliveira%2C+V%3BCox%2C+L+H%3BSmith%2C+R+L&rft.aulast=Holland&rft.aufirst=D&rft.date=2000-08-01&rft.volume=11&rft.issue=4&rft.spage=373&rft.isbn=&rft.btitle=&rft.title=Environmetrics&rft.issn=11804009&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sulfur dioxide; Meteorology; Seasonal variations; Air pollution; Pollution surveys ER - TY - JOUR T1 - Dechlorination-controlled polychlorinated dibenzofuran isomer patterns from municipal waste incinerators AN - 17629741; 4783983 AB - The ability to predict polychlorinated dibenzofuran (PCDF) isomer patterns from municipal waste incinerators (MWIs) enables an understanding of PCDF formation that may lead to preventive measures. This work develops a model for the pattern prediction, assuming that the chromatograph peak ratios relative to the total four heptachloro-dibenzofuran (H7CDF) isomers are determined by position-specific dechlorination kinetics from an octachloro-dibenzofuran (O8CDF) parent to H7CDFs and that these probabilities can subsequently predict the relative concentrations of lower chlorinated isomers. Agreement of PCDF isomer patterns between the model and sampled data from eight MWIs is consistent with formation of tetrachloro-dibenzofurans to H7CDFs by dechlorination from an O8CDF parent. The application of the analogous theory to predict isomer patterns of poly-chlorinated dibenzo-p-dioxins (PCDDs) did not provide any significant results, which implies that the formation mechanism of PCDDs is controlled by other factors such as condensation of precursors and further chlorination. This method can be a fundamental basis to develop a prediction model for total PCDFs emission and toxic equivalent values. JF - Environmental Science & Technology AU - Iino, F AU - Imagawa, T AU - Gullett, B K AD - U.S. Environmental Protection Agency, Nation, Risk Management Research Laboratory, Air Pollution Prevention and Control Division, Air Pollution Technology Branch, MD-65, Research Triangle Park, North Carolina 27711, USA, gullett.brian@epa.gov Y1 - 2000/08/01/ PY - 2000 DA - 2000 Aug 01 SP - 3143 EP - 3147 VL - 34 IS - 15 SN - 0013-936X, 0013-936X KW - Pollution Abstracts KW - Dechlorination KW - Combustion products KW - Toxic materials KW - Incineration KW - Emissions KW - PCDF KW - Municipal wastes KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17629741?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Dechlorination-controlled+polychlorinated+dibenzofuran+isomer+patterns+from+municipal+waste+incinerators&rft.au=Iino%2C+F%3BImagawa%2C+T%3BGullett%2C+B+K&rft.aulast=Iino&rft.aufirst=F&rft.date=2000-08-01&rft.volume=34&rft.issue=15&rft.spage=3143&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes9913131 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Municipal wastes; Incineration; Dechlorination; PCDF; Toxic materials; Emissions; Combustion products DO - http://dx.doi.org/10.1021/es9913131 ER - TY - JOUR T1 - Lung cancer among workers in chromium chemical production AN - 17616974; 4750394 AB - An elevated risk of lung cancer among workers in chromate production facilities has previously been reported. This excess risk is believed to be the result of exposure to hexavalent chromium. There have been mixed reports about whether trivalent chromium exposure is also associated with an excess lung cancer risk. Previous studies of measured hexavalent chromium exposure and lung cancer risk have not examined cigarette smoking as a risk factor. Results Cumulative hexavalent chromium exposure showed a strong dose-response relationship for lung cancer. Clinical signs of irritation, cumulative trivalent chromium exposure, and duration of work were not found to be associated with a risk of lung cancer when included in a proportional hazards model with cumulative hexavalent chromium exposure and smoking. Age-specific data on cumulative hexavalent chromium exposure, observed and expected numbers of lung cancer cases, and person-years of observation are provided. Conclusions Cumulative hexavalent chromium exposure was associated with an increased lung cancer risk; cumulative trivalent chromium exposure was not. The excess risk of lung cancer associated with cumulative hexavalent chromium exposure was not confounded by smoking status. The current study offers the best quantitative evidence to date of the relationship between hexavalent chromium exposure and lung cancer. JF - American Journal of Industrial Medicine AU - Gibb, HJ AU - Lees, PSJ AU - Pinsky, P F AU - Rooney, B C AD - National Center for Environmental Assessment (8601D), U.S. Environmental Protection Agency, Ariel Rios Building, 1200 Pennsylvania Ave., N.W., Washington, D.C. 20460, USA, gibb.herman@epamail.epa.gov Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 115 EP - 126 VL - 38 IS - 2 SN - 0271-3586, 0271-3586 KW - man KW - Toxicology Abstracts; Health & Safety Science Abstracts; Risk Abstracts KW - Chromium KW - Heavy metals KW - Lung diseases KW - Cancer KW - Occupational exposure KW - Lung cancer KW - R2 23080:Industrial and labor KW - H 1000:Occupational Safety and Health KW - X 24162:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17616974?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Industrial+Medicine&rft.atitle=Lung+cancer+among+workers+in+chromium+chemical+production&rft.au=Gibb%2C+HJ%3BLees%2C+PSJ%3BPinsky%2C+P+F%3BRooney%2C+B+C&rft.aulast=Gibb&rft.aufirst=HJ&rft.date=2000-08-01&rft.volume=38&rft.issue=2&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Industrial+Medicine&rft.issn=02713586&rft_id=info:doi/10.1002%2F1097-0274%28200008%2938%3A23.3.CO%3B2-P LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lung cancer; Chromium; Occupational exposure; Heavy metals; Lung diseases; Cancer DO - http://dx.doi.org/10.1002/1097-0274(200008)38:2<115::AID-AJIM1>3.3.CO;2-P ER - TY - JOUR T1 - A geography of ecosystem vulnerability AN - 17564225; 4761240 AB - Land-cover change and the subsequent potential loss of natural resources due to conversion to anthropogenic use is regarded as one of the more pervasive environmental threats. Population and road data were used to generate interpolated surfaces of land demand across a large region, the mid-Atlantic states of Pennsylvania, Delaware, Maryland, Virginia, and West Virginia. The land demand surfaces were evaluated against land-cover change, as estimated using temporal decline in Normalized Difference Vegetation Index (NDVI). In general, the interpolated surfaces exhibited a plateau along the eastern seaboard that sank to a valley in the center of the study area, and then rose again to a plateau in the west that was of overall lower height than the plateau on the eastern seaboard. The spatial pattern of land-cover change showed the same general pattern as the interpolated surfaces of land demand. Correlations were significant regardless of variations used to generate the interpolated surfaces. The results suggest that human activity is the principal agent of land-cover change at regional scales in this region, and that natural resources that change as land cover changes (e.g., water, habitat) are exposed to a gradient of vulnerability that increases from west to east. JF - Landscape Ecology AU - Wickham, J D AU - O'Neill, R V AU - Jones, K B AD - U.S. Environmental Protection Agency (MD-56), Research Triangle Park, NC 27711, USA Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 495 EP - 504 VL - 15 IS - 6 SN - 0921-2973, 0921-2973 KW - USA KW - Ecology Abstracts KW - Biogeography KW - Landscape KW - Land use KW - Human impact KW - D 04712:Environmental degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17564225?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Landscape+Ecology&rft.atitle=A+geography+of+ecosystem+vulnerability&rft.au=Wickham%2C+J+D%3BO%27Neill%2C+R+V%3BJones%2C+K+B&rft.aulast=Wickham&rft.aufirst=J&rft.date=2000-08-01&rft.volume=15&rft.issue=6&rft.spage=495&rft.isbn=&rft.btitle=&rft.title=Landscape+Ecology&rft.issn=09212973&rft_id=info:doi/10.1023%2FA%3A1008176120891 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Human impact; Land use; Landscape; Biogeography DO - http://dx.doi.org/10.1023/A:1008176120891 ER - TY - JOUR T1 - Modeling landscape functions and effects: a network approach AN - 17623423; 4767769 AB - Landscape functions, including sediment and nutrient trapping, pollutant degradation, and flood control, are often adversely affected by human activities. Tools are needed for assessing the effects of human activities at the landscape scale. An approach is presented that addresses this goal. Spatially-explicit ecosystem units and their connections are used to define a transport network. A linear transport model is a tractable approach to landscape analysis for assessment purposes. The ability of each unit to provide ecosystem goods and services is considered explicitly in terms of its place in the network. Based on this simple model, landscape-level effects of impacts to the functioning of a given ecosystem unit can be calculated. Effects of changes in network structure (due to changes in the flow regime) can also be assessed. The model allows several useful concepts to be defined, including change in buffer capacity, free capacity, an ordinal ranking of the relative importance of ecosystem units to overall landscape functioning, and differentiation of cumulative versus synergistic effects. Utility functions for valuation of landscape function are also defined. The framework developed here should provide a foundation for the development of analytic tools that can be applied to assessment and permitting activities. JF - Ecological Modelling AU - Leibowitz, S G AU - Loehle, C AU - Li, Bai-Lian AU - Preston, E M AD - National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, 200 SW 35th Street, Corvallis, OR 97333, USA, leibo@mail.cor.epa.gov Y1 - 2000/07/30/ PY - 2000 DA - 2000 Jul 30 SP - 77 EP - 94 VL - 132 IS - 1-2 SN - 0304-3800, 0304-3800 KW - Ecology Abstracts KW - Flood control KW - Landscape KW - Ecosystem models KW - Pollution KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17623423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Modelling&rft.atitle=Modeling+landscape+functions+and+effects%3A+a+network+approach&rft.au=Leibowitz%2C+S+G%3BLoehle%2C+C%3BLi%2C+Bai-Lian%3BPreston%2C+E+M&rft.aulast=Leibowitz&rft.aufirst=S&rft.date=2000-07-30&rft.volume=132&rft.issue=1-2&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Ecological+Modelling&rft.issn=03043800&rft_id=info:doi/10.1016%2FS0304-3800%2800%2900306-9 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Landscape; Flood control; Pollution; Ecosystem models DO - http://dx.doi.org/10.1016/S0304-3800(00)00306-9 ER - TY - JOUR T1 - Selection of protective action guides for nuclear incidents AN - 17667570; 4741985 AB - In 1991 the Environmental Protection Agency (EPA) published its revised Manual of Protective Action Guides and Protective Actions for Nuclear Incidents. The protective action guides contained in the manual represent EPA's formal recommendations to Federal, State, and local emergency response officials for protecting public health and safety during a nuclear incident. These guides are expressed in terms of the projected dose at which action(s) should be taken to reduce or eliminate that dose. In determining the appropriate values for the protective action guides, the Agency considered the following four principles: (1) acute health effects should be avoided, (2) the risk of delayed health effects should be minimized, (3) the values should not be higher than justified by a cost-benefit analysis, and (4) the risk to health from implementing the protective action should not be greater than the risk from the dose avoided. This paper examines each of these principles and their application in the selection of the evacuation and sheltering protective action guides for the early, or immediate, phase of a nuclear incident. JF - Journal of Hazardous Materials AU - Conklin, C AU - Edwards, J AD - US Environmental Protection Agency, Center for Risk Modeling and Emergency Response, US Environmental Protection Agency, Office of Radiation and Indoor Air (6602J), 401 M Street, SW, Washington, DC 20460, USA, conklin.craig@epa.gov Y1 - 2000/07/28/ PY - 2000 DA - 2000 Jul 28 SP - 131 EP - 144 VL - 75 IS - 2-3 SN - 0304-3894, 0304-3894 KW - Health & Safety Science Abstracts; Pollution Abstracts KW - Cost-benefit analysis KW - Accidents KW - Dose-response effects KW - Radioactive materials KW - EPA KW - Hazardous materials KW - Emergency preparedness KW - H 8000:Radiation Safety/Electrical Safety KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17667570?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hazardous+Materials&rft.atitle=Selection+of+protective+action+guides+for+nuclear+incidents&rft.au=Conklin%2C+C%3BEdwards%2C+J&rft.aulast=Conklin&rft.aufirst=C&rft.date=2000-07-28&rft.volume=75&rft.issue=2-3&rft.spage=131&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hazardous+Materials&rft.issn=03043894&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Emergency preparedness; Cost-benefit analysis; Hazardous materials; Radioactive materials; Accidents; Dose-response effects; EPA ER - TY - CONF T1 - Recent developments in regulatory requirements for developmental toxicology AN - 18098976; 5166520 AB - A number of legislative and regulatory changes have occurred over the past 5 years to prompt the re-evaluation of the regulatory requirements for developmental toxicity testing and use of the data for risk assessment. In particular, passage of the 1996 Food Quality Protection Act (FQPA) in the United States required the USEPA to evaluate children's health risks in a more rigorous fashion, and to apply an additional 10-fold safety factor if data were inadequate or children appeared to be more sensitive than adults. A review of the testing protocols required by USEPA led to extension of the dosing period to term in the prenatal developmental toxicity study and the addition of endpoints to the 2-generation reproduction study protocol as indicators of possible neurologic, reproductive, or immune alterations. Revised testing guidelines for pesticides and toxic substances were published by USEPA in 1998, including a developmental neurotoxicity testing protocol. Further review for FQPA implementation resulted in the proposal for a core set of required toxicology studies, including routine developmental neurotoxicity, adult neurotoxicity, and adult immunotoxicity studies. In addition, development of new testing guidelines in several areas was recommended, these guidelines to be used in conjunction with or as follow-up when indicated from standard testing: developmental immunotoxicity, carcinogenesis, specialized neurotoxicity studies, endocrine disruptor studies, pharmacokinetics, and direct dosing of neonates. The impact of these efforts on the policies for toxicity testing of pesticides are discussed, and these issues are currently being reviewed on a broader scale, in particular, by evaluating the adequacy of the methods used for reference values (e.g. chronic RfD, RfC). Three major areas of focus for this review include life stages evaluated, endpoints assessed, and the duration of exposure used in various studies. A major focus of these efforts is to ensure that children's health risks are being adequately addressed in the risk assessment process. JF - Toxicology Letters AU - Kimmel, CA AU - Makris, S L Y1 - 2000/07/27/ PY - 2000 DA - 2000 Jul 27 SP - 73 EP - 82 PB - Elsevier Science Ireland Ltd., Elsevier House, Brookvale Plaza East Park Shannon, Co. Clare Ireland VL - 116 IS - 1-2 KW - developmental toxicology KW - immunotoxicity KW - prenatal experience KW - Health & Safety Science Abstracts; Toxicology Abstracts KW - Risk assessment KW - Prenatal experience KW - Government policy KW - Regulation KW - Government regulations KW - Children KW - Immunotoxicity KW - USA KW - Pesticides KW - Neurotoxicity KW - Reproduction KW - Toxicity testing KW - Legislation KW - X 24230:Legislation & recommended standards KW - H 14000:Toxicology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18098976?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+Letters&rft.atitle=Recent+developments+in+regulatory+requirements+for+developmental+toxicology&rft.au=Kimmel%2C+CA%3BMakris%2C+S+L&rft.aulast=Kimmel&rft.aufirst=CA&rft.date=2000-07-27&rft.volume=116&rft.issue=1-2&rft.spage=73&rft.isbn=&rft.btitle=&rft.title=Toxicology+Letters&rft.issn=03784274&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Air pollution and respiratory disease: extrapolating from animal models to human health effects. AN - 72219013; 10960676 JF - Immunopharmacology AU - Selgrade, M K AD - National Health and Environmental Effects Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, NC 27711, USA. Y1 - 2000/07/25/ PY - 2000 DA - 2000 Jul 25 SP - 319 EP - 324 VL - 48 IS - 3 SN - 0162-3109, 0162-3109 KW - Index Medicus KW - Animals KW - Humans KW - Risk Assessment KW - Hypersensitivity -- immunology KW - Lung Diseases -- chemically induced KW - Air Pollution -- adverse effects KW - Disease Models, Animal KW - Lung Diseases -- immunology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72219013?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Immunopharmacology&rft.atitle=Air+pollution+and+respiratory+disease%3A+extrapolating+from+animal+models+to+human+health+effects.&rft.au=Selgrade%2C+M+K&rft.aulast=Selgrade&rft.aufirst=M&rft.date=2000-07-25&rft.volume=48&rft.issue=3&rft.spage=319&rft.isbn=&rft.btitle=&rft.title=Immunopharmacology&rft.issn=01623109&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-11-13 N1 - Date created - 2000-11-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Identification of reactive dyes in spent dyebaths and wastewater by capillary electrophoresis-mass spectrometry. AN - 71780805; 10950294 AB - Capillary electrophoresis with diode array detection and mass spectrometry combined with solid-phase extraction were employed for the identification of reactive vinylsulfone and chlorotriazine dyes and their hydrolysis products in spent dyebaths and raw and treated wastewater. Recoveries of dyes from treated wastewater as their tetrabutylammonium ion-pairs using C18 reversed-phase cartridges ranged from 81 to 121%. Detection limits in sewage effluent of the different dyes and hydrolysis products ranged from 23 to 42 microg/l. The method was successfully applied to the detection of the hydrolysis products of five reactive dyes in influents and effluents of a municipal wastewater treatment plant receiving dyehouse effluents. JF - Journal of chromatography. A AU - Poiger, T AU - Richardson, S D AU - Baughman, G L AD - Ecosystems Research Division, National Exposure Research Laboratory, US Environmental Protection Agency, Athens, GA 30605, USA. thomas.poiger@faw.admin.ch Y1 - 2000/07/21/ PY - 2000 DA - 2000 Jul 21 SP - 271 EP - 282 VL - 886 IS - 1-2 SN - 0021-9673, 0021-9673 KW - Coloring Agents KW - 0 KW - Industrial Waste KW - Water Pollutants, Chemical KW - Index Medicus KW - Water Pollutants, Chemical -- analysis KW - Mass Spectrometry -- methods KW - Coloring Agents -- chemistry KW - Electrophoresis, Capillary -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71780805?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+chromatography.+A&rft.atitle=Identification+of+reactive+dyes+in+spent+dyebaths+and+wastewater+by+capillary+electrophoresis-mass+spectrometry.&rft.au=Poiger%2C+T%3BRichardson%2C+S+D%3BBaughman%2C+G+L&rft.aulast=Poiger&rft.aufirst=T&rft.date=2000-07-21&rft.volume=886&rft.issue=1-2&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Journal+of+chromatography.+A&rft.issn=00219673&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-07 N1 - Date created - 2000-12-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Perchlorate uptake by salt cedar (Tamarix ramosissima) in the Las Vegas Wash riparian ecosystem AN - 17668341; 4741289 AB - Perchlorate ion (ClO sub(4) super(-)) has been identified in samples of dormant salt cedar (Tamarix ramosissima) growing in the Las Vegas Wash. Perchlorate is an oxidant, but its reduction is kinetically hindered. Concern over thyroid effects caused the Environmental Protection Agency (EPA) to add perchlorate to the drinking water Contaminant Candidate List (CCL). Beginning in 2001, utilities will look for perchlorate under the Unregulated Contaminants Monitoring Rule (UCMR). In wood samples acquired from the same plant growing in a contaminated stream, perchlorate concentrations were found as follows: 5-6 mu g g super(-1) in dry twigs extending above the water and 300 mu g g super(-1) in stalks immersed in the stream. Perchlorate was leached from samples of wood, and the resulting solutions were analyzed by ion chromatography after clean-up. The identification was confirmed by electrospray ionization mass spectrometry after complexation of perchlorate with decyltrimethylammonium cation. Because salt cedar is regarded as an invasive species, there are large scale programs aimed at eliminating it. However, this work suggests that salt cedar might play a role in the ecological distribution of perchlorate as an environmental contaminant. Consequently, a thorough investigation of the fate and transport of perchlorate in tamarisks is required to assess the effects that eradication might have on perchlorate-tainted riparian ecosystems, such as the Las Vegas Wash. This is especially important since water from the wash enters Lake Mead and the Colorado River and has the potential to affect the potable water source of tens of millions of people as well as irrigation water used on a variety of crops, including much of the lettuce produced in the USA. JF - Science of the Total Environment AU - Urbansky, E T AU - Magnuson, M L AU - Kelty, CA AU - Brown, S K AD - United States Environmental Protection Agency, National Risk Management Research Laboratory, Water Supply and Water Resources Division, 26 West Martin Luther King Drive, Cincinnati, OH 45268, USA, urbansky.edward@epa.gov Y1 - 2000/07/10/ PY - 2000 DA - 2000 Jul 10 SP - 227 EP - 232 VL - 256 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Tamarix ramosissima KW - USA, Nevada, Las Vegas KW - USA, Nevada, Las Vegas Wash KW - perchlorate KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Pollutant Identification KW - Plant Tissues KW - Pollution monitoring KW - Riparian Vegetation KW - Path of Pollutants KW - Tamarisk KW - Thyroid KW - Ecological Effects KW - Streams KW - Pollution surveys KW - Water pollution KW - Public health KW - Bioaccumulation KW - Analytical Methods KW - Oxidation KW - Riparian environments KW - Plants KW - Regulations KW - Chemical Composition KW - Contaminants KW - Drinking water KW - Oxidants KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17668341?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+of+the+Total+Environment&rft.atitle=Perchlorate+uptake+by+salt+cedar+%28Tamarix+ramosissima%29+in+the+Las+Vegas+Wash+riparian+ecosystem&rft.au=Urbansky%2C+E+T%3BMagnuson%2C+M+L%3BKelty%2C+CA%3BBrown%2C+S+K&rft.aulast=Urbansky&rft.aufirst=E&rft.date=2000-07-10&rft.volume=256&rft.issue=2-3&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Science+of+the+Total+Environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pollution monitoring; Bioaccumulation; Oxidation; Pollution surveys; Public health; Plants; Thyroid; Riparian environments; Drinking water; Contaminants; Streams; Water pollution; Oxidants; Pollutant Identification; Plant Tissues; Riparian Vegetation; Analytical Methods; Path of Pollutants; Tamarisk; Regulations; Ecological Effects; Chemical Composition ER - TY - JOUR T1 - Accumulation of Iron in the Rat Lung after Tracheal Instillation of Diesel Particles AN - 755138231; 13646087 AB - Oxidant generation catalyzed by metals has been postulated to account for a lung injury following exposure to air pollution particles. In particles that are predominantly carbonaceous, it is difficult to implicate such an oxidative stress as the responsible mechanism, since concentrations of metals can be extremely low. Comparable to these air pollution particles, mineral oxide particles can include only minute amounts of metal, but lung injury following their exposure can be associated with an accumulation of endogenous iron from the host and an oxidative stress. We tested the hypothesis that diesel exhaust particulate (DEP) effects an accumulation of biologically active iron in the rat lung, with both oxidative stress and a lung injury resulting. Characterization of the DEP confirmed a high concentration of carbon, whereas metals were low in quantity. The concentration of total lavage iron in animals instilled with saline was low, but this concentration increased with exposure to DEP. Non-heme iron in lung tissue was similarly elevated after instillation of the diesel product. Particle instillation was associated with a decrease in lavage ascorbate concentration supporting an oxidative stress. Relative to saline exposure, DEP resulted in elevated lavage concentrations of the inflammatory mediators macrophage inflammatory protein-2 and tumor necrosis factor. Finally, an injury after particle instillation was evident with increased neutrophils and an elevation of lavage protein and lactic dehydrogenase. We conclude that DEP exposure effected an accumulation of iron in the rat lung. This accrual of iron was associated with an oxidative stress, release of oxidant-sensitive mediators, and a neutrophilic lung injury. JF - Toxicologic Pathology AU - Ghio, Andrew J AU - Richards, Judy H AU - Carter, Jacqueline D AU - Madden, Michael C AD - National Health and Environmental Effects Research Laboratory, Environmental Protection Agency, Research Triangle Park, North Carolina 27711 Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 619 EP - 627 PB - Sage Publications Ltd., 6 Bonhill St. London EC2A 4PU UK VL - 28 IS - 4 SN - 0192-6233, 0192-6233 KW - Toxicology Abstracts UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/755138231?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicologic+Pathology&rft.atitle=Accumulation+of+Iron+in+the+Rat+Lung+after+Tracheal+Instillation+of+Diesel+Particles&rft.au=Ghio%2C+Andrew+J%3BRichards%2C+Judy+H%3BCarter%2C+Jacqueline+D%3BMadden%2C+Michael+C&rft.aulast=Ghio&rft.aufirst=Andrew&rft.date=2000-07-01&rft.volume=28&rft.issue=4&rft.spage=619&rft.isbn=&rft.btitle=&rft.title=Toxicologic+Pathology&rft.issn=01926233&rft_id=info:doi/10.1177%2F019262330002800416 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-09-01 N1 - Last updated - 2011-12-14 DO - http://dx.doi.org/10.1177/019262330002800416 ER - TY - JOUR T1 - Carcinogenicity of Chloral Hydrate Administered in Drinking Water to the Male F344/N Rat and Male B6C3F1 Mouse AN - 755136059; 13646086 AB - Male B6C3F sub(1) mice and male F344/N rats were exposed to chloral hydrate (chloral) in the drinking water for 2 years. Rats: Measured chloral hydrate drinking water concentrations for the study were 0.12 g/L, 0.58 g/L, and 2.51 g/L chloral hydrate that yielded time-weighted mean daily doses (MDDs) of 7.4, 37.4, and 162.6 mg/kg per day. Water consumptions, survival, body weights, and organ weights were not altered in any of the chloral hydrate treatments. Life-time exposures to chloral hydrate failed to increase the prevalence (percentage of animals with a tumor) or the multiplicity (tumors/animal) of hepatocellular neoplasia. Chloral hydrate did not increase the prevalence of neoplasia at any other organ site. Mice: Measured chloral hydrate drinking water concentrations for the study were 0.12 g/L, 0.58 g/L, and 1.28 g/L that gave MDDs of 13.5, 65.0, and 146.6 mg/kg per day. Water consumptions, survival, body and organ weights, were not altered from the control values by any of the chloral hydrate treatments. Enhanced neoplasia was observed only in the liver. Prevalence and multiplicity of hepatocellular carcinoma (HC) were increased only for the high-dose group (84.4%; 0.72 HC/animal; p less than or equal to 0.05). Values of 54.3%; 0.72 HC/animal and 59%; 1.03 HC/animal were observed for the 13.5- and 65.0-mg/ kg per day treatment groups. Prevalence and multiplicity for the control group were 54.8%; 0.74 HC/animal. Hepatoadenoma (HA) prevalence and multiplicity were significantly increased (p less than or equal to 0.05) at all chloral hydrate concentrations: 43.5%; 0.65 HA/animal, 51.3%; 0.95 HA/animal and 50%; 0.72 HA/animal at 13.5, 65.0, and 146.6 mg/kg per day chloral hydrate compared to 21.4%; 0.21 HA/animal in the untreated group. Altered foci of cells were evident in all doses tested in the mouse, but no significant differences were observed over the control values. Hepatocellular necrosis was minimal and did not exceed that seen in untreated rats and mice. Chloral hydrate exposure did not alter serum chemistry and hepatocyte proliferation in rats and mice or increase hepatic palmitoyl CoA oxidase in mice at any of the time periods monitored. It was concluded that chloral hydrate was carcinogenic (hepatocellular neoplasia) in the male mouse, but not in the rat, following a lifetime exposure in the drinking water. Based upon the increased HA and combined tumors at all chloral hydrate doses tested, a no observed adverse effect level was not determined. JF - Toxicologic Pathology AU - George, Michael H AU - Moore, Tanya AU - Kilburn, Steve AU - Olson, Greg R AU - Deangelo, Anthony B AD - National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Research Triangle Park, North Carolina 27711 Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 610 EP - 618 PB - Sage Publications Ltd., 6 Bonhill St. London EC2A 4PU UK VL - 28 IS - 4 SN - 0192-6233, 0192-6233 KW - Toxicology Abstracts UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/755136059?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicologic+Pathology&rft.atitle=Carcinogenicity+of+Chloral+Hydrate+Administered+in+Drinking+Water+to+the+Male+F344%2FN+Rat+and+Male+B6C3F1+Mouse&rft.au=George%2C+Michael+H%3BMoore%2C+Tanya%3BKilburn%2C+Steve%3BOlson%2C+Greg+R%3BDeangelo%2C+Anthony+B&rft.aulast=George&rft.aufirst=Michael&rft.date=2000-07-01&rft.volume=28&rft.issue=4&rft.spage=610&rft.isbn=&rft.btitle=&rft.title=Toxicologic+Pathology&rft.issn=01926233&rft_id=info:doi/10.1177%2F019262330002800415 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-09-01 N1 - Last updated - 2011-12-14 DO - http://dx.doi.org/10.1177/019262330002800415 ER - TY - JOUR T1 - Chlorpyrifos-induced hypothermia and vasodilation in the tail of the rat: blockade by scopolamine. AN - 72257132; 10987209 AB - Organophosphate pesticides such as chlorpyrifos reduce core temperature (Tc) in laboratory rodents. The mechanism(s) responsible for the chlorpyrifos-induced hypothermia are not well known. This study assessed the role of a key effector for thermoregulation in the rat, vasomotor control of heat loss from the tail, and its possible cholinergic control during chlorpyrifos-induced hypothermia. Tc and motor activity were monitored by telemetry in female Long-Evans rats maintained at an ambient temperature (Ta) of 25 degrees. Tail skin temperature (Tsk(t)) was measured hourly. Rats were dosed with chlorpyrifos (0 or 25 mg/kg orally). Two hr later the rats were dosed with saline or scopolamine (1.0 mg/kg intraperitoneally). Two hr after chlorpyrifos treatment there was a marked elevation in Tsk(t)) concomitant with a 0.5 degrees reduction in Tc. Scopolamine administered to control rats led to a marked elevation in Tc with little change in Tsk(t). Rats treated with chlorpyrifos and administered scopolamine underwent a marked vasoconstriction and elevation in Tc. Vasodilation of the tail is an important thermoeffector to reduce Tc during the acute stages of chlorpyrifos exposure. The blockade of the response by scopolamine suggests that the hypothermic and vasodilatory response to chlorpyrifos is mediated via a cholinergic muscarinic pathway in the CNS. JF - Pharmacology & toxicology AU - Gordon, C J AU - Yang, Y L AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. gordon.christopher@epa.gov Y1 - 2000/07// PY - 2000 DA - July 2000 SP - 6 EP - 10 VL - 87 IS - 1 SN - 0901-9928, 0901-9928 KW - Insecticides KW - 0 KW - Muscarinic Antagonists KW - Scopolamine Hydrobromide KW - 451IFR0GXB KW - Chlorpyrifos KW - JCS58I644W KW - Index Medicus KW - Rats KW - Animals KW - Analysis of Variance KW - Rats, Long-Evans KW - Vasodilation -- drug effects KW - Skin Temperature -- drug effects KW - Motor Activity -- drug effects KW - Female KW - Insecticides -- toxicity KW - Muscarinic Antagonists -- therapeutic use KW - Chlorpyrifos -- toxicity KW - Hypothermia -- drug therapy KW - Insecticides -- antagonists & inhibitors KW - Chlorpyrifos -- antagonists & inhibitors KW - Hypothermia -- chemically induced KW - Scopolamine Hydrobromide -- therapeutic use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72257132?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Pharmacology+%26+toxicology&rft.atitle=Chlorpyrifos-induced+hypothermia+and+vasodilation+in+the+tail+of+the+rat%3A+blockade+by+scopolamine.&rft.au=Gordon%2C+C+J%3BYang%2C+Y+L&rft.aulast=Gordon&rft.aufirst=C&rft.date=2000-07-01&rft.volume=87&rft.issue=1&rft.spage=6&rft.isbn=&rft.btitle=&rft.title=Pharmacology+%26+toxicology&rft.issn=09019928&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-01-02 N1 - Date created - 2001-01-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Variability in pesticides residues--the US experience. AN - 72250338; 10983571 AB - The evolution of US Environmental Protection Agency's (EPA) process for estimating potential health risks from pesticide residues in or on food is examined in light of changes in US Legislation and the variability of residue data and assumptions used to estimate dietary exposure. In the 86 years since enactment of the Insecticide Act, pesticide laws have become progressively more health-based. Passage of the 1996 Food Quality Protection Act (FQPA) requires EPA to place particular emphasis on assessing potential risk from pesticides to infants and children. Primary factors affecting the actual pesticide residues in food include frequency of application, percentage of crop treated, and the interval from treatment to harvest. Primary factors affecting the estimated pesticide residues in food include the source of the residue data, calculation techniques for non-detected residues, and the availability of data reflecting post-harvest treatments. Risk assessors must thoroughly consider these factors when assessing dietary risk to pesticides. Risk managers will need to consider these factors as a means of mitigating dietary risk from pesticides. JF - Food additives and contaminants AU - Suhre, F B AD - United States Environmental Protection Agency, Office of Pesticide Programs, Washington, DC, USA. suhre.francis@epamail.epa.gov Y1 - 2000/07// PY - 2000 DA - July 2000 SP - 497 EP - 501 VL - 17 IS - 7 SN - 0265-203X, 0265-203X KW - Pesticide Residues KW - 0 KW - Index Medicus KW - United States KW - United States Environmental Protection Agency -- standards KW - Humans KW - Food Analysis KW - Adult KW - Child KW - Diet KW - Risk Assessment -- methods KW - United States Food and Drug Administration -- standards KW - Child, Preschool KW - Food Contamination -- legislation & jurisprudence KW - Pesticide Residues -- poisoning KW - Pesticide Residues -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72250338?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+additives+and+contaminants&rft.atitle=Variability+in+pesticides+residues--the+US+experience.&rft.au=Suhre%2C+F+B&rft.aulast=Suhre&rft.aufirst=F&rft.date=2000-07-01&rft.volume=17&rft.issue=7&rft.spage=497&rft.isbn=&rft.btitle=&rft.title=Food+additives+and+contaminants&rft.issn=0265203X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-04 N1 - Date created - 2000-10-04 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Pesticide residues and acute risk assessment--the US EPA approach. AN - 72244804; 10983580 AB - The US Environmental Protection Agency (EPA) assesses acute dietary exposure to pesticide residues using a tiered approach, proceeding from conservative to more refined assumptions as the risk management situation requires. Toxicity and food residue data used by EPA in assessing acute dietary risk are obtained from studies submitted by chemical companies in support of pesticide registration and tolerance setting. The primary source of food consumption data used by EPA in acute dietary risk assessments is the Continuing Survey of Food Intakes by Individuals (CSFII) 1989-1991. JF - Food additives and contaminants AU - Suhre, F B AD - United States Environmental Protection Agency, Office of Pesticide Programs, Washington, DC, USA. suhre.francis@epamail.epa.gov Y1 - 2000/07// PY - 2000 DA - July 2000 SP - 569 EP - 573 VL - 17 IS - 7 SN - 0265-203X, 0265-203X KW - Pesticide Residues KW - 0 KW - Index Medicus KW - United States KW - Humans KW - Data Interpretation, Statistical KW - Risk Assessment -- methods KW - United States Environmental Protection Agency KW - Food Contamination -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72244804?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+additives+and+contaminants&rft.atitle=Pesticide+residues+and+acute+risk+assessment--the+US+EPA+approach.&rft.au=Suhre%2C+F+B&rft.aulast=Suhre&rft.aufirst=F&rft.date=2000-07-01&rft.volume=17&rft.issue=7&rft.spage=569&rft.isbn=&rft.btitle=&rft.title=Food+additives+and+contaminants&rft.issn=0265203X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-04 N1 - Date created - 2000-10-04 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Behavioral and electrophysiological estimates of visual thresholds in awake rats treated with 3,3',4,4',5-pentachlorobiphenyl (PCB 126). AN - 72236415; 10974590 AB - Visual thresholds for luminance increments were obtained behaviorally and electrophysiologically from rats exposed to a polychlorinated biphenyl (PCB) during development. Male Long-Evans rats exposed to 0, 0.25, or 1.0 microg/kg/day of 3,3',4,4', 5-pentachlorobiphenyl (PCB 126) through gestation and weaning were trained as adults to perform a signal detection task. Estimates of threshold were derived from psychometric functions for each animal relating the proportion of hits to signal intensity. Thresholds derived under three luminance conditions did not differ significantly among the PCB-treated groups. After behavioral testing was completed, flash-evoked potentials were recorded from dark-adapted awake animals. Peak amplitudes increased linearly over approximately 3 log units of intensity. Extrapolations to 0 amplitude along the linear portion of the amplitude-log intensity functions produced estimates of absolute threshold of -5.44 to -5.53 log cd/m(2)-s. Waveforms recorded from awake animals had a large late negative component that was absent in previously reported anesthetized preparations. Developmental exposure to PCB 126 had no significant effect on absolute threshold or peak amplitudes and latencies. JF - Neurotoxicology and teratology AU - Geller, A M AU - Bushnell, P J AU - Rice, D C AD - Neurotoxicology Division, US EPA, Research Triangle Park, NC 27711, USA. geller.andrew@epamail.epa.gov PY - 2000 SP - 521 EP - 531 VL - 22 IS - 4 SN - 0892-0362, 0892-0362 KW - Polychlorinated Biphenyls KW - DFC2HB4I0K KW - Thyroxine KW - Q51BO43MG4 KW - 3,4,5,3',4'-pentachlorobiphenyl KW - TSH69IA9XF KW - Index Medicus KW - Animals KW - Rats, Long-Evans KW - Dose-Response Relationship, Drug KW - Thyroxine -- blood KW - Electrophysiology KW - Thyroxine -- drug effects KW - Pregnancy KW - Rats KW - Evoked Potentials, Visual -- drug effects KW - Photic Stimulation KW - Sensory Thresholds -- drug effects KW - Thyroid Gland -- drug effects KW - Psychomotor Performance -- drug effects KW - Wakefulness KW - Female KW - Male KW - Thyroid Gland -- metabolism KW - Behavior, Animal -- drug effects KW - Polychlorinated Biphenyls -- pharmacology KW - Visual Perception -- drug effects KW - Prenatal Exposure Delayed Effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72236415?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Neurotoxicology+and+teratology&rft.atitle=Behavioral+and+electrophysiological+estimates+of+visual+thresholds+in+awake+rats+treated+with+3%2C3%27%2C4%2C4%27%2C5-pentachlorobiphenyl+%28PCB+126%29.&rft.au=Geller%2C+A+M%3BBushnell%2C+P+J%3BRice%2C+D+C&rft.aulast=Geller&rft.aufirst=A&rft.date=2000-07-01&rft.volume=22&rft.issue=4&rft.spage=521&rft.isbn=&rft.btitle=&rft.title=Neurotoxicology+and+teratology&rft.issn=08920362&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-02 N1 - Date created - 2000-10-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Estimating separately personal exposure to ambient and nonambient particulate matter for epidemiology and risk assessment: why and how. AN - 71765181; 10939210 AB - This paper discusses the legal and scientific reasons for separating personal exposure to PM into ambient and nonambient components. It then demonstrates by several examples how well-established models and data typically obtained in exposure field studies can be used to estimate both individual and community average exposure to ambient-generated PM (ambient PM outdoors plus ambient PM that has infiltrated indoors), indoor-generated PM, and personal activity PM. Ambient concentrations are not highly correlated with personal exposure to nonambient PM or total PM but are highly correlated with personal exposure to ambient-generated PM. Therefore, ambient concentrations may be used in epidemiology as an appropriate surrogate for personal exposure to ambient-generated PM. Suggestions are offered as to how exposure to ambient-generated PM may be obtained and used in epidemiology and risk assessment. JF - Journal of the Air & Waste Management Association (1995) AU - Wilson, W E AU - Mage, D T AU - Grant, L D AD - U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA. wilson.william@epa.gov Y1 - 2000/07// PY - 2000 DA - July 2000 SP - 1167 EP - 1183 VL - 50 IS - 7 SN - 1096-2247, 1096-2247 KW - Index Medicus KW - Sensitivity and Specificity KW - Environment KW - Epidemiologic Studies KW - Particle Size KW - Humans KW - Time Factors KW - Risk Assessment KW - Air Pollution -- analysis KW - Environmental Exposure -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71765181?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.atitle=Estimating+separately+personal+exposure+to+ambient+and+nonambient+particulate+matter+for+epidemiology+and+risk+assessment%3A+why+and+how.&rft.au=Wilson%2C+W+E%3BMage%2C+D+T%3BGrant%2C+L+D&rft.aulast=Wilson&rft.aufirst=W&rft.date=2000-07-01&rft.volume=50&rft.issue=7&rft.spage=1167&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.issn=10962247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-09-08 N1 - Date created - 2000-09-08 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Comment In: J Air Waste Manag Assoc. 2001 Mar;51(3):323-9; author reply 329-38 [11266097] J Air Waste Manag Assoc. 2001 Mar;51(3):322-3; author reply 329-38 [11266095] J Air Waste Manag Assoc. 2001 Mar;51(3):322; author reply 329-38 [11266096] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Is daily mortality associated specifically with fine particles? Data reconstruction and replication of analyses. AN - 71740762; 10939214 AB - In 1996, Schwartz, Dockery, and Neas reported that daily mortality was more strongly associated with concentrations of PM2.5 than with concentrations of larger particles (coarse mass [CM]) in six U.S. cities ("original paper"/"original analyses"). Because of the public policy implications of the findings and the uniqueness of the concentration data, we undertook a reanalysis of these results. This paper presents results of the reconstruction of these data and replication of the original analyses using the reconstructed data. The original investigators provided particulate air pollution data for this paper. Daily weather and daily counts of total and cause-specific deaths were reconstructed from original public records. The reconstructed particulate air pollution and weather data were consistent with the summaries presented in the original paper. Daily counts of deaths in the reconstructed data set were lower than in the original paper because of restrictions on residence and place of death. The reconstruction process identified an administrative change in county codes that led to higher numbers of deaths in St. Louis. Despite these differences in daily counts of deaths, the estimated effects of particulate air pollution from the reconstructed dataset, using analytic methods as described in the original paper, produced combined effect estimates essentially equivalent to the originally published results. For example, the estimated association of a 10 micrograms/m3 increase in 2-day mean particulate air pollution on total mortality was 1.3% (95% confidence interval [CI] 0.9-1.7%, t = 6.53) for PM2.5 based on the reconstructed dataset, compared to the originally reported association of 1.5% (95% CI 1.1-1.9%, t = 7.41). For coarse particles, the estimated association from the reconstructed dataset was 0.4% (95% CI -0.2-0.9%, t = 1.43) compared to the originally reported association of 0.4% (95% CI -0.1-1.0%, t = 1.48). These results from the reconstructed data suggest that the original results reported by Schwartz, Dockery, and Neas were essentially replicated. JF - Journal of the Air & Waste Management Association (1995) AU - Klemm, R J AU - Mason, R M AU - Heilig, C M AU - Neas, L M AU - Dockery, D W AD - Epidemiology and Biomarkers Branch, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA. Y1 - 2000/07// PY - 2000 DA - July 2000 SP - 1215 EP - 1222 VL - 50 IS - 7 SN - 1096-2247, 1096-2247 KW - Index Medicus KW - Reproducibility of Results KW - Particle Size KW - Humans KW - Infant, Newborn KW - Aged KW - Child KW - Child, Preschool KW - Infant KW - Epidemiologic Studies KW - Adult KW - Middle Aged KW - Adolescent KW - Female KW - Male KW - Mortality KW - Air Pollution -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71740762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.atitle=Is+daily+mortality+associated+specifically+with+fine+particles%3F+Data+reconstruction+and+replication+of+analyses.&rft.au=Klemm%2C+R+J%3BMason%2C+R+M%3BHeilig%2C+C+M%3BNeas%2C+L+M%3BDockery%2C+D+W&rft.aulast=Klemm&rft.aufirst=R&rft.date=2000-07-01&rft.volume=50&rft.issue=7&rft.spage=1215&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.issn=10962247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-09-08 N1 - Date created - 2000-09-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Use of a continuous nephelometer to measure personal exposure to particles during the U.S. Environmental Protection Agency Baltimore and Fresno Panel studies. AN - 71738026; 10939206 AB - In population exposure studies, personal exposure to PM is typically measured as a 12- to 24-hr integrated mass concentration. To better understand short-term variation in personal PM exposure, continuous (1-min averaging time) nephelometers were worn by 15 participants as part of two U.S. Environmental Protection Agency (EPA) longitudinal PM exposure studies conducted in Baltimore County, MD, and Fresno, CA. Participants also wore inertial impactor samplers (24-hr integrated filter samples) and recorded their daily activities in 15-min intervals. In Baltimore, the nephelometers correlated well (R2 = 0.66) with the PM2.5 impactors. Time-series plots of personal nephelometer data showed each participant's PM exposure to consist of a series of peaks of relatively short duration. Activities corresponding to a significant instrument response included cooking, outdoor activities, transportation, laundry, cleaning, shopping, gardening, moving between microenvironments, and removing/putting on the instrument. On average, 63-66% of the daily PM exposure occurred indoors at home (about 2/3 of which occurred during waking hours), primarily due to the large amount of time spent in that location (an average of 72-77%). Although not a reference method for measuring mass concentration, the nephelometer did help identify PM sources and the relative contribution of those sources to an individual's personal exposure. JF - Journal of the Air & Waste Management Association (1995) AU - Howard-Reed, C AU - Rea, A W AU - Zufall, M J AU - Burke, J M AU - Williams, R W AU - Suggs, J C AU - Sheldon, L S AU - Walsh, D AU - Kwok, R AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory, Reston, Virginia, USA. Y1 - 2000/07// PY - 2000 DA - July 2000 SP - 1125 EP - 1132 VL - 50 IS - 7 SN - 1096-2247, 1096-2247 KW - Index Medicus KW - Particle Size KW - Humans KW - Nephelometry and Turbidimetry KW - Aging KW - Aged KW - Male KW - Female KW - Environmental Monitoring -- methods KW - Air Pollution -- analysis KW - Activities of Daily Living UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71738026?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.atitle=Use+of+a+continuous+nephelometer+to+measure+personal+exposure+to+particles+during+the+U.S.+Environmental+Protection+Agency+Baltimore+and+Fresno+Panel+studies.&rft.au=Howard-Reed%2C+C%3BRea%2C+A+W%3BZufall%2C+M+J%3BBurke%2C+J+M%3BWilliams%2C+R+W%3BSuggs%2C+J+C%3BSheldon%2C+L+S%3BWalsh%2C+D%3BKwok%2C+R&rft.aulast=Howard-Reed&rft.aufirst=C&rft.date=2000-07-01&rft.volume=50&rft.issue=7&rft.spage=1125&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.issn=10962247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-09-08 N1 - Date created - 2000-09-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A preliminary examination of the translocation of microencapsulated cyfluthrin following applications to the perimeter of residential dwellings. AN - 71219037; 10874624 AB - Methods have been developed to monitor the translocation of microencapsulated cyfluthrin following perimeter applications to residential dwellings. A pilot study was implemented to determine both the potential for application spray to drift away from dwellings and the intrusion of residues into homes following perimeter treatments. Residential monitoring included measuring spray drift using cellulose filter paper and the collection of soil samples from within the spray zone. In addition, interior air was monitored using fiberglass filter paper as a sorbent medium and cotton ball swabs were used to collect surface wipes. Fortification of matrixes resulted in recoveries of > 90%. Spray drift was highest at the point of application and declined to low but measurable levels 9.1 m from the foundations of dwellings. Soil residues declined to low, but measurable levels by 45 days post-application. No cyfluthrin was measured from indoor air; however, some interior surfaces had detectable levels of cyfluthrin until three days post-application. Findings indicate that spray drift resulting from perimeter applications might contaminate non-target surfaces outside the spray zone. Soil borne residues may serve as persistent sources for human exposure and potentially intrude into dwellings through the activities of occupants and pets. Residues do not appreciably translocate through air and consequently inhalation is not a likely route for human exposure. Surface residues detected indoors suggest that the physical movement of residues from the exterior to the interior might be a viable route of movement of residues following this type of application. JF - Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes AU - Stout, D M AU - Leidy, R B AD - National Exposure Research Laboratory, U.S. EPA, Research Triangle Park, NC 27711, USA. stout.dan@epa.gov Y1 - 2000/07// PY - 2000 DA - July 2000 SP - 477 EP - 489 VL - 35 IS - 4 SN - 0360-1234, 0360-1234 KW - Aerosols KW - 0 KW - Insecticides KW - Nitriles KW - Pyrethrins KW - Soil Pollutants KW - cyfluthrin KW - SCM2QLZ6S0 KW - Index Medicus KW - Air Pollution, Indoor -- analysis KW - Housing KW - Kinetics KW - Humans KW - Environmental Exposure -- analysis KW - Pilot Projects KW - Soil Pollutants -- analysis KW - Pyrethrins -- analysis KW - Insecticides -- pharmacokinetics KW - Pyrethrins -- pharmacokinetics KW - Insecticides -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71219037?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+environmental+science+and+health.+Part.+B%2C+Pesticides%2C+food+contaminants%2C+and+agricultural+wastes&rft.atitle=A+preliminary+examination+of+the+translocation+of+microencapsulated+cyfluthrin+following+applications+to+the+perimeter+of+residential+dwellings.&rft.au=Stout%2C+D+M%3BLeidy%2C+R+B&rft.aulast=Stout&rft.aufirst=D&rft.date=2000-07-01&rft.volume=35&rft.issue=4&rft.spage=477&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+science+and+health.+Part.+B%2C+Pesticides%2C+food+contaminants%2C+and+agricultural+wastes&rft.issn=03601234&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-05 N1 - Date created - 2000-12-05 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Iso 19011:2002--a combined auditing standard for quality and environmental management systems. AN - 70543701; 12008882 AB - In a precedent-setting decision in 1998, the International Organization for Standardization (ISO) directed ISO Technical Committee (TC) 176 on Quality Management and ISO TC 207 on Environmental Management to develop jointly a single guideline standard for auditing quality and environmental management systems. When approved, this standard would replace ISO 10011-1, ISO 10011-2, and ISO 10011-3 on quality auditing and ISO 14010, ISO 14011, and ISO 14012 on environmental auditing. A Joint Working Group (JWG) was established comprising experts from both TC 176 and TC 207 to develop the new standard, ISO 19011, Guidelines on Quality and/or Environmental Management Systems Auditing, and to incorporate lessons learned from efforts to improve compatibility between ISO 9001/9004 and ISO 14001/14004, the standards for quality and environmental management systems, respectively. Work is proceeding on the development of ISO 19011 with an expected completion in early 2002. JF - Quality assurance (San Diego, Calif.) AU - Johnson, G L AD - US Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. johnson.gary@epa.gov PY - 2000 SP - 145 EP - 152 VL - 8 IS - 3-4 SN - 1052-9411, 1052-9411 KW - Index Medicus KW - Humans KW - Reference Standards KW - Guidelines as Topic KW - Management Audit -- standards KW - International Cooperation KW - Environmental Monitoring -- standards KW - Management Information Systems -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70543701?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quality+assurance+%28San+Diego%2C+Calif.%29&rft.atitle=Iso+19011%3A2002--a+combined+auditing+standard+for+quality+and+environmental+management+systems.&rft.au=Johnson%2C+G+L&rft.aulast=Johnson&rft.aufirst=G&rft.date=2000-07-01&rft.volume=8&rft.issue=3-4&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Quality+assurance+%28San+Diego%2C+Calif.%29&rft.issn=10529411&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-06-07 N1 - Date created - 2002-05-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Overview of executive order 13148: requirements for environmental management systems at federal facilities. AN - 70537358; 12008883 AB - In April 2000, the White House issued Executive Order 13148, Greening the Government Through Leadership in Environmental Management. This Order applies to all appropriate federal facilities that have operations which interact with the environment and includes a number of environmentally-related requirements. The most significant requirement is that all appropriate federal facilities must implement an Environmental Management System (EMS) by December 31, 2005. This Order affects federal laboratories, testing facilities, maintenance facilities, hospitals, and so forth across all federal departments and agencies. JF - Quality assurance (San Diego, Calif.) AU - Johnson, G L AD - US Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. johnson.gary@epa.gov PY - 2000 SP - 153 EP - 160 VL - 8 IS - 3-4 SN - 1052-9411, 1052-9411 KW - Index Medicus KW - United States KW - Maintenance and Engineering, Hospital -- legislation & jurisprudence KW - United States Environmental Protection Agency KW - Humans KW - Health Plan Implementation KW - Facility Regulation and Control -- legislation & jurisprudence KW - Environmental Monitoring -- legislation & jurisprudence KW - Management Information Systems -- legislation & jurisprudence KW - Health Policy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70537358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quality+assurance+%28San+Diego%2C+Calif.%29&rft.atitle=Overview+of+executive+order+13148%3A+requirements+for+environmental+management+systems+at+federal+facilities.&rft.au=Johnson%2C+G+L&rft.aulast=Johnson&rft.aufirst=G&rft.date=2000-07-01&rft.volume=8&rft.issue=3-4&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Quality+assurance+%28San+Diego%2C+Calif.%29&rft.issn=10529411&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-06-07 N1 - Date created - 2002-05-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - How good are my data?: Information quality assessment methodology. AN - 70533976; 12008892 AB - Quality assurance techniques used in software development and hardware maintenance/reliability help ensure that data in a computerized information management system are maintained well. However, information workers may not know the quality of data resident in their information systems. Knowledge of the quality of information and data in an enterprise provides managers with important facts for managing and improving the processes that impact information quality. This paper presents quality assessment methodology to assist information workers in planning and implementing an effective assessment of their information data and quality. The areas covered include: identifying appropriate information quality indicators; developing assessment procedures; conducting information quality assessments; reporting information assessment results; tracking improvements in information quality. JF - Quality assurance (San Diego, Calif.) AU - Worthington, J C AU - Brilis, G AD - USEPA Office of Environmental Information, Washington, DC 20460, USA. worthington.jeffrey@epa.gov PY - 2000 SP - 245 EP - 260 VL - 8 IS - 3-4 SN - 1052-9411, 1052-9411 KW - Index Medicus KW - United States KW - Humans KW - Quality Control KW - Environmental Monitoring KW - Total Quality Management -- methods KW - Software Validation KW - Computers -- standards KW - Management Information Systems -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70533976?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quality+assurance+%28San+Diego%2C+Calif.%29&rft.atitle=How+good+are+my+data%3F%3A+Information+quality+assessment+methodology.&rft.au=Worthington%2C+J+C%3BBrilis%2C+G&rft.aulast=Worthington&rft.aufirst=J&rft.date=2000-07-01&rft.volume=8&rft.issue=3-4&rft.spage=245&rft.isbn=&rft.btitle=&rft.title=Quality+assurance+%28San+Diego%2C+Calif.%29&rft.issn=10529411&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-06-07 N1 - Date created - 2002-05-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Two data bases in every garage: information quality systems. AN - 70533942; 12008891 AB - Enterprises, including Federal agencies such as the U.S. Environmental Protection Agency (EPA), are now identifying their information as a strategic resource. As part of a new strategy, enterprises address quality system planning. This technical paper presents some of EPA's approaches and techniques for reconciling quality system considerations for science and technical activities with quality system considerations for information technology and resources. Identification of key information quality indicators, management processes, and assessment processes are addressed. JF - Quality assurance (San Diego, Calif.) AU - Worthington, J C AD - USEPA Office of Environmental Information, Washington, DC 20460, USA. worthington.jeffrey@epa.gov PY - 2000 SP - 225 EP - 244 VL - 8 IS - 3-4 SN - 1052-9411, 1052-9411 KW - Index Medicus KW - United States KW - Models, Organizational KW - Quality Indicators, Health Care KW - United States Environmental Protection Agency -- standards KW - Humans KW - Reference Standards KW - Terminology as Topic KW - Quality Control KW - Environmental Monitoring KW - Systems Integration KW - Management Information Systems -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70533942?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quality+assurance+%28San+Diego%2C+Calif.%29&rft.atitle=Two+data+bases+in+every+garage%3A+information+quality+systems.&rft.au=Worthington%2C+J+C&rft.aulast=Worthington&rft.aufirst=J&rft.date=2000-07-01&rft.volume=8&rft.issue=3-4&rft.spage=225&rft.isbn=&rft.btitle=&rft.title=Quality+assurance+%28San+Diego%2C+Calif.%29&rft.issn=10529411&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-06-07 N1 - Date created - 2002-05-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Data standards are back seat drivers! Methodology for incorporating information quality into quality assurance project plans. AN - 70532285; 12008888 AB - Quality assurance project plans for environmental data collections consider user requirements for the measurements and express these in the form of data quality objectives. User requirements now may include capture of measurements and associated information in prescribed formats to facilitate entry into computerized information systems. Establishing ahead of time that the data requirements may be an important "back seat driver" for an environmental collection effort can save considerable resources for an organization. Also, the planning may need to accommodate unique requirements associated with the entry of data into data collection systems. JF - Quality assurance (San Diego, Calif.) AU - Johnson, L AU - Worthington, J C AD - USEPA National Exposure Research Laboratory, Cincinnati, Ohio 45268, USA. johnson.lora@epa.gov PY - 2000 SP - 195 EP - 199 VL - 8 IS - 3-4 SN - 1052-9411, 1052-9411 KW - Index Medicus KW - United States KW - Data Collection -- standards KW - Data Collection -- methods KW - United States Environmental Protection Agency -- standards KW - Humans KW - Quality Control KW - Total Quality Management -- methods KW - Environmental Monitoring -- standards KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70532285?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quality+assurance+%28San+Diego%2C+Calif.%29&rft.atitle=Data+standards+are+back+seat+drivers%21+Methodology+for+incorporating+information+quality+into+quality+assurance+project+plans.&rft.au=Johnson%2C+L%3BWorthington%2C+J+C&rft.aulast=Johnson&rft.aufirst=L&rft.date=2000-07-01&rft.volume=8&rft.issue=3-4&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Quality+assurance+%28San+Diego%2C+Calif.%29&rft.issn=10529411&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-06-07 N1 - Date created - 2002-05-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Improving the quality of data used in environmental economics research. AN - 70529239; 12008885 AB - Valuing environmental goods through contingent valuation and through other survey techniques is difficult because of the lack of traditional markets for those goods. EPA provides leadership in overcoming these challenges, using focus groups, workshops, handbooks, and teams of distinguished economists to obtain more reliable economic data from the surveys. Agency economists have provided leadership in employing production economics tools to identify win-win approaches to solve pervasive and neglected environmental problems. In addition, we exploit the speed of sophisticated computers, building field runoff models into economic models and aggregating results from tens of thousands of field sites. These very flexible models provide much more credible, site-specific analyses than previous models, and they offer flexible and efficient remedies to support Total Maximum Daily Loads and other new programs. JF - Quality assurance (San Diego, Calif.) AU - Ogg, C AD - US Environmental Protection Agency, Office of Policy, Economics, and Innovation, Washington, DC 20460, USA. ogg.clayton@epa.gov PY - 2000 SP - 169 EP - 179 VL - 8 IS - 3-4 SN - 1052-9411, 1052-9411 KW - Agrochemicals KW - 0 KW - Index Medicus KW - United States KW - Agriculture -- standards KW - Agriculture -- economics KW - Agrochemicals -- standards KW - Humans KW - Cost-Benefit Analysis KW - Decision Making KW - Quality Control KW - Agrochemicals -- economics KW - Environmental Monitoring -- economics KW - Conservation of Natural Resources -- economics KW - Models, Economic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70529239?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quality+assurance+%28San+Diego%2C+Calif.%29&rft.atitle=Improving+the+quality+of+data+used+in+environmental+economics+research.&rft.au=Ogg%2C+C&rft.aulast=Ogg&rft.aufirst=C&rft.date=2000-07-01&rft.volume=8&rft.issue=3-4&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Quality+assurance+%28San+Diego%2C+Calif.%29&rft.issn=10529411&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-06-07 N1 - Date created - 2002-05-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Stable chlorine isotopic compositions of aroclors and aroclor-contaminated sediments AN - 51969192; 2003-036210 JF - Environmental Science & Technology, ES & T AU - Reddy, Christopher M AU - Heraty, Linnea J AU - Holt, Ben D AU - Sturchio, Neil C AU - Eglinton, Timothy I AU - Drenzek, Nicholas J AU - Li, Xu AU - Lake, James L AU - Maruya, Keith A Y1 - 2000/07// PY - 2000 DA - July 2000 SP - 2866 EP - 2870 PB - American Chemical Society, Washington, DC VL - 34 IS - 13 SN - 0013-936X, 0013-936X KW - United States KW - chlorinated hydrocarbons KW - degradation KW - isotopes KW - PCBs KW - halogens KW - stable isotopes KW - transport KW - sediments KW - halogenated hydrocarbons KW - aroclor KW - depositional environment KW - estuarine environment KW - chemical composition KW - chlorine KW - concentration KW - pollutants KW - isotope ratios KW - pollution KW - Turtle River estuary KW - organic compounds KW - New York KW - New Bedford Harbor KW - Cl-37/Cl-35 KW - point sources KW - Hudson River KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51969192?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Stable+chlorine+isotopic+compositions+of+aroclors+and+aroclor-contaminated+sediments&rft.au=Reddy%2C+Christopher+M%3BHeraty%2C+Linnea+J%3BHolt%2C+Ben+D%3BSturchio%2C+Neil+C%3BEglinton%2C+Timothy+I%3BDrenzek%2C+Nicholas+J%3BLi%2C+Xu%3BLake%2C+James+L%3BMaruya%2C+Keith+A&rft.aulast=Reddy&rft.aufirst=Christopher&rft.date=2000-07-01&rft.volume=34&rft.issue=13&rft.spage=2866&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 16 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aroclor; chemical composition; chlorinated hydrocarbons; chlorine; Cl-37/Cl-35; concentration; degradation; depositional environment; estuarine environment; halogenated hydrocarbons; halogens; Hudson River; isotope ratios; isotopes; New Bedford Harbor; New York; organic compounds; PCBs; point sources; pollutants; pollution; sediments; stable isotopes; transport; Turtle River estuary; United States ER - TY - JOUR T1 - Assessing the effects of natural and anthropogenic stressors in the Potomac Estuary: Implications for long-term monitoring AN - 20860035; 4767661 AB - Ecological conditions in the Potomac Estuary are affected by a variety of natural and anthropogenic stressors. Natural climatic factors combined with anthropogenic activities affect fluxes of material through Potomac River watersheds and cause changes in ecological conditions in the Potomac Estuary. A basic premise of this ongoing study is that effects of anthropogenic and natural stressors can be distinguished. The investigation involves: 1) analysis of existing data using time series methods, 2) retrospective modeling to link the response of estuarine water quality to changes in stressors, and 3) new measurements on sediment cores from the Potomac Estuary. Estuarine effects being considered include changes in the distribution and abundance of chlorophyll a, diatoms, dinoflagellates, ostracods, submerged aquatic vegetation, benthic fauna, dissolved oxygen, and foraminifera. Since current conditions may be due to the accumulation of effects over many years, our research considers variability and changes during the past century in the context of long-term changes during the past 500 years. The availability of large data sets from the past century, long-term information on variability in precipitation from tree ring data from the past 300 years, and paleoecological studies by other investigators in the Potomac Estuary and main stem of Chesapeake Bay make the Potomac Estuary an ideal place to develop methods to distinguish between effects of natural and anthropogenic stressors in estuaries, in the context of a varying, and perhaps changing, climate. JF - Environmental Monitoring and Assessment AU - Walker, HA AU - Latimer, J S AU - Dettmann, E H AD - U. S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, Narragansett, RI 02882, USA Y1 - 2000/07/01/ PY - 2000 DA - 2000 Jul 01 SP - 237 EP - 251 PB - Kluwer Academic Publishers, Postbus 17 Dordrecht 3300 AA Netherlands VL - 63 IS - 1 SN - 0167-6369, 0167-6369 KW - USA, Chesapeake Bay KW - USA, Potomac Estuary KW - USA, Potomac R. KW - Pollution Abstracts; Human Population; Ecology Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Aqualine Abstracts KW - Natural disturbance KW - Estuarine organisms KW - Chlorophylls KW - Pollution monitoring KW - Chlorophyll KW - Ecosystems KW - Water Pollution Sources KW - Climatic changes KW - Anthropogenic factors KW - Ecological Effects KW - Watersheds KW - Human impact KW - ANW, USA, Potomac Estuary KW - Ecology KW - Cores KW - Catchment areas KW - Environmental effects KW - Climatic Changes KW - Environmental stress KW - Environmental monitoring KW - Palaeoecology KW - Climate KW - Estuaries KW - Brackish KW - Analytical techniques KW - Human factors KW - Sediment composition KW - Monitoring KW - Pollution (Water) KW - Water quality (Natural waters) KW - Benthos KW - O 4095:Instruments/Methods KW - P 1000:MARINE POLLUTION KW - SW 3020:Sources and fate of pollution KW - Q5 08502:Methods and instruments KW - AQ 00002:Water Quality KW - M1 400:Monitoring and Quantitating Anthropogenic Processes KW - D 04712:Environmental degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20860035?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Assessing+the+effects+of+natural+and+anthropogenic+stressors+in+the+Potomac+Estuary%3A+Implications+for+long-term+monitoring&rft.au=Walker%2C+HA%3BLatimer%2C+J+S%3BDettmann%2C+E+H&rft.aulast=Walker&rft.aufirst=HA&rft.date=2000-07-01&rft.volume=63&rft.issue=1&rft.spage=237&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2001-08-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Estuarine organisms; Pollution monitoring; Chlorophylls; Palaeoecology; Estuaries; Climatic changes; Anthropogenic factors; Watersheds; Cores; Analytical techniques; Environmental effects; Sediment composition; Natural disturbance; Environmental stress; Monitoring; Human impact; Chlorophyll; Human factors; Benthos; Ecology; Catchment areas; Climate; Pollution (Water); Water quality (Natural waters); Ecosystems; Water Pollution Sources; Climatic Changes; Ecological Effects; ANW, USA, Potomac Estuary; Brackish ER - TY - JOUR T1 - OZONE ADAPTATION IN MICE AND ITS ASSOCIATION WITH ASCORBIC ACID IN THE LUNG AN - 20696937; 10310496 AB - We have previously shown that ozone (O3) adaptation occurred in rats after daily exposure to an 'urban-type' concentration. The adaptation was positively associated with an excess of ascorbic acid (AA) in bronchoalveolar lavage fluid (BALF), suggesting that AA may play a role in the adaptation mechanism. This relationship was not seen at higher and more toxic exposures. The present work exposed mice to low and high levels of O3 to see if the adaptation-AA relationship is common among rodent species. Male CD-1 mice were studied during repeated 6-h/day exposures to 0.0 or 0.25 ppm O3 for 10 days and 10 days of recovery in air (experiment 1) and to 0.,0.5, or 1.0 ppm O3 for 5 days (experiment 2). Approximately 20 h after each daily exposure, groups of mice were randomly selected from each concentration type and examined for patterns of response. They were anesthetized (urethane, ip), intubated, and the lungs were lavaged with 37°C saline. BALF was assayed for cells, cell differential, protein, albumin, lactate dehydrogenase, lysozymes, N-acetyl- beta -D-glucosaminidase, gamma-glutamyl transferase, uric acid, glutathione, and AA. Body weight and total lung capacity were also measured. Mice from experiment 1 (10/exposure) were tested for adaptation on day 12 by challenging them with 1.0 ppm O3 for 6 h and collecting BALF 20 h later. In experiment 2, adaptation was assessed by evaluating the attenuation in response to continued exposure. There was only minimal response to the daily O3 exposures in experiment 1 except for AA, which was significantly increased in BALF by day 3 and remained elevated well into the recovery period. The O3-preexposed mice demonstrated adaptation when compared to their O3-naive counterparts. Daily exposure to 1.0 ppm O3 in experiment 2 caused weight loss and changes in BALF consistent with toxicity, and neither adaptation nor an excess quantity of AA was seen. The findings in mice were in agreement with those seen in rats and suggest that there may be a common O3 adaptation mechanism among rodents that involves the regulation of AA in lung lining fluid. JF - Inhalation Toxicology AU - Wiester, Mildred J AU - Winsett, Darrell W AU - Richards, Judy H AU - Jackson, Mette C AU - Crissman, Kay M AU - Costa, Daniel L AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Experimental Toxicology Division, Pulmonary Toxicology Branch, Research Triangle Park, Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 577 EP - 590 PB - Taylor & Francis Group Ltd., 2 Park Square Milton Park, Abingdon Oxford OX14 4RN UK, [URL:http://www.taylorandfrancis.co.uk/] VL - 12 IS - 7 SN - 0895-8378, 0895-8378 KW - Toxicology Abstracts; Environment Abstracts KW - Inhalation KW - Glutathione KW - adaptability KW - Rats KW - gamma -Glutamyltransferase KW - Body weight KW - Bronchus KW - body weight KW - Uric acid KW - Ozone KW - Adaptations KW - Mice KW - Toxicity KW - Alveoli KW - L-Lactate dehydrogenase KW - Ascorbic acid KW - Lung KW - Albumin KW - urethane KW - rodents KW - X 24350:Industrial Chemicals KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20696937?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Inhalation+Toxicology&rft.atitle=OZONE+ADAPTATION+IN+MICE+AND+ITS+ASSOCIATION+WITH+ASCORBIC+ACID+IN+THE+LUNG&rft.au=Wiester%2C+Mildred+J%3BWinsett%2C+Darrell+W%3BRichards%2C+Judy+H%3BJackson%2C+Mette+C%3BCrissman%2C+Kay+M%3BCosta%2C+Daniel+L&rft.aulast=Wiester&rft.aufirst=Mildred&rft.date=2000-07-01&rft.volume=12&rft.issue=7&rft.spage=577&rft.isbn=&rft.btitle=&rft.title=Inhalation+Toxicology&rft.issn=08958378&rft_id=info:doi/10.1080%2F08958370050030958 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Inhalation; Adaptations; Glutathione; Toxicity; Alveoli; Ascorbic acid; L-Lactate dehydrogenase; gamma -Glutamyltransferase; Bronchus; Body weight; Lung; Albumin; urethane; Ozone; Uric acid; Rats; Mice; body weight; rodents; adaptability DO - http://dx.doi.org/10.1080/08958370050030958 ER - TY - JOUR T1 - Condition of the Mid-Atlantic estuaries: Production of a state of the environment report AN - 18151114; 4767652 AB - The U.S. Environmental Protection Agency has released a report entitled Condition of the Mid-Atlantic Estuaries. That report summarizes the findings of several studies conducted by federal and state agencies and academic institutions in Chesapeake Bay, Delaware Estuary, and the coastal bays of Delaware, Maryland, and Virginia, and simultaneously addresses two distinct audiences: environmental managers and the general public. This paper documents the process of preparing the Estuaries Report, emphasizing the lessons learned in merging information from a wide-variety of sources and in reporting the results to multiple audiences. The major difficulties in preparing the report included: 1) choosing a format and topics that adequately addressed both environmental managers and the public, 2) resolving spatial and temporal disparities in the assembled data sets, and 3) establishing threshold values that distinguished between acceptable and unacceptable conditions in indicators. Our solutions to these challenges and alternatives are discussed. We conclude that a small team of knowledgeable scientists can effectively merge the information of diverse sources into a document that is useful to both environmental managers and the interested public. However, considerable interaction between the team and other scientists was necessary to resolve ambiguities and assure relevancy and accuracy. These findings support the proposition that the vast sources of existing environmental information can be easily and effectively used to assess the ecological condition across large regions. JF - Environmental Monitoring and Assessment AU - Paul, J F AU - Kiddon, JA AU - Strobel, C J AU - Melzian, B D AU - Latimer, J S AU - Cobb, D J AU - Campbell, DE AU - Brown, B S AD - Atlantic Ecology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Narragansett, RI 02882, USA Y1 - 2000/07/01/ PY - 2000 DA - 2000 Jul 01 SP - 115 EP - 129 PB - Kluwer Academic Publishers, Postbus 17 Dordrecht 3300 AA Netherlands VL - 63 IS - 1 SN - 0167-6369, 0167-6369 KW - Public policy KW - USA, Chesapeake Bay KW - USA, Delaware KW - USA, Maryland KW - USA, Mid-Atlantic KW - USA, Mid-Atlantic Region KW - USA, Virginia KW - Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; ASFA 2: Ocean Technology Policy & Non-Living Resources; Oceanic Abstracts; Water Resources Abstracts; Ecology Abstracts; Pollution Abstracts KW - Pollution monitoring KW - Management KW - Ecosystems KW - Environmental Quality KW - Ecological crisis KW - Ecology KW - Environmental information KW - Data Collections KW - Marine KW - Data collection KW - Policies KW - Estuaries KW - Brackish KW - Environmental quality standards KW - Publications KW - Data collections KW - Environmental protection KW - EPA KW - Nature conservation KW - ANW, USA, Mid-Atlantic Bight KW - Governments KW - Environment management KW - Q5 08523:Conservation, wildlife management and recreation KW - P 9000:ENVIRONMENTAL ACTION KW - O 4090:Conservation and Environmental Protection KW - P 1000:MARINE POLLUTION KW - Q1 08121:Law, policy, economics and social sciences KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - SW 0890:Estuaries KW - D 04320:Brackishwater KW - Q2 09124:Coastal zone management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18151114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Condition+of+the+Mid-Atlantic+estuaries%3A+Production+of+a+state+of+the+environment+report&rft.au=Paul%2C+J+F%3BKiddon%2C+JA%3BStrobel%2C+C+J%3BMelzian%2C+B+D%3BLatimer%2C+J+S%3BCobb%2C+D+J%3BCampbell%2C+DE%3BBrown%2C+B+S&rft.aulast=Paul&rft.aufirst=J&rft.date=2000-07-01&rft.volume=63&rft.issue=1&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Pollution monitoring; Policies; Ecosystems; Estuaries; Nature conservation; Governments; Ecological crisis; Environment management; Environmental protection; Management; EPA; Data collection; Environmental information; Ecology; Environmental quality standards; Data collections; Environmental Quality; Publications; Data Collections; ANW, USA, Mid-Atlantic Bight; Marine; Brackish ER - TY - JOUR T1 - Elevated CO sub(2) and conifer roots: effects on growth, life span and turnover AN - 17822769; 4859255 AB - Elevated CO sub(2) increases root growth and fine (diam. [less than or equal to]2 mm) root growth across a range of species and experimental conditions. However, there is no clear evidence that elevated CO sub(2) changes the proportion of C allocated to root biomass, measured as either the root:shoot ratio or the fine root:needle ratio. Elevated CO sub(2) tends to increase mycorrhizal infection, colonization and the amount of extramatrical hyphae, supporting their key role in aiding the plant to more intensively exploit soil resources, providing a route for increased C sequestration. Only two studies have determined the effects of elevated CO sub(2) on conifer fine-root life span, and there is no clear trend. Elevated CO sub(2) increases the absolute fine-root turnover rates; however, the standing crop root biomass is also greater, and the effect of elevated CO sub(2) on relative turnover rates (turnover:biomass) ranges from an increase to a decrease. At the ecosystem level these changes could lead to increased C storage in roots. Increased fine-root production coupled with increased absolute turnover rates could also lead to increases in soil organic C as greater amounts of fine roots die and decompose. Although CO sub(2) can stimulate fine-root growth, it is not known if this stimulation persists over time. Modeling studies suggest that a doubling of the atmospheric CO sub(2) concentration initially increases biomass, but this stimulation declines with the response to elevated CO sub(2) because increases in assimilation are not matched by increases in nutrient supply. JF - New Phytologist AU - Tingey, D T AU - Phillips, D L AU - Johnson, M G AD - U.S. Environmental Protection Agency, Western Ecology Division, 200 SW 35th, Corvallis, OR 97333, USA, dtingey@mail.cor.epa.gov Y1 - 2000/07/01/ PY - 2000 DA - 2000 Jul 01 SP - 87 EP - 103 VL - 147 IS - 1 SN - 0028-646X, 0028-646X KW - Carbon dioxide KW - Ecology Abstracts KW - Growth KW - Roots KW - Longevity KW - Atmospheric conditions KW - conifers KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17822769?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=New+Phytologist&rft.atitle=Elevated+CO+sub%282%29+and+conifer+roots%3A+effects+on+growth%2C+life+span+and+turnover&rft.au=Tingey%2C+D+T%3BPhillips%2C+D+L%3BJohnson%2C+M+G&rft.aulast=Tingey&rft.aufirst=D&rft.date=2000-07-01&rft.volume=147&rft.issue=1&rft.spage=87&rft.isbn=&rft.btitle=&rft.title=New+Phytologist&rft.issn=0028646X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Atmospheric conditions; Growth; Longevity; conifers; Roots ER - TY - JOUR T1 - Locating leaks with acoustic technology AN - 17815277; 4858355 AB - Anyone who has dealt with a dripping faucet knows small leaks can add up to large amounts of wasted water. Aging water distribution pipes are increasingly prone to such wasteful leaks - leaks that also provide a port of entry to contaminants. Moreover, it is costly to find and repair these leaks, in part because methods for finding small leaks (on the order of gallons per hour) have not been particularly reliable. Devices called leak correlators have been used for some time to find breaks in pressurized pipes. They analyze signals transmitted by sensors attached directly to a pipe on either side of a suspected leak. The location of a suspected leak is calculated on the basis of time lag, distance between sensors, and the velocity at which sound travels through the pipe. Tafuri describes experiments in which the accuracy of leak correlators was improved by refining the way in which the signals were processed. Tuned linear location required more time to gather data because it relied on waveform processing; however, it proved to be the most reliable and accurate method tested. For instance, the system accurately located a 1.2-gph leak at 100-ft sensor spacing on a 12-in.-diameter pipe loop. This work has demonstrated the ability of current technology to find leaks in the gallons-per-hour range. Water waste, potential threats to water quality, and the cost of repairing leaks will be reduced as this technology is applied to detect and locate leaks earlier and more accurately. JF - Journal of the American Water Works Association AU - Tafuri, AN AD - US Environmental Protection Agency's National Risk Management Research Lab, Edison, NJ, USA Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 57 EP - 66 VL - 92 IS - 7 SN - 0003-150X, 0003-150X KW - Aqualine Abstracts; Water Resources Abstracts KW - Pipes KW - Leakage KW - Sensors KW - Instrumentation KW - Measuring Instruments KW - Acoustics KW - Water conservation KW - Water Conservation KW - Conveyance Structures KW - Pipes (see also Conduits, Drains, Pipelines, Sewers) KW - Water loss KW - Water Loss KW - Water Distribution KW - Water distribution KW - Technology KW - SW 3060:Water treatment and distribution KW - AQ 00005:Underground Services and Water Use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17815277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Works+Association&rft.atitle=Locating+leaks+with+acoustic+technology&rft.au=Tafuri%2C+AN&rft.aulast=Tafuri&rft.aufirst=AN&rft.date=2000-07-01&rft.volume=92&rft.issue=7&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Works+Association&rft.issn=0003150X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Leakage; Instrumentation; Sensors; Pipes (see also Conduits, Drains, Pipelines, Sewers); Acoustics; Water conservation; Water loss; Water distribution; Pipes; Measuring Instruments; Water Conservation; Water Loss; Water Distribution; Technology; Conveyance Structures ER - TY - CONF T1 - Landscape correlates of breeding bird richness across the United States mid-Atlantic region AN - 17682400; 4767655 AB - Using a new set of landscape indicator data generated by the U.S.EPA, and a comprehensive breeding bird database from the National Breeding Bird Survey, we evaluated associations between breeding bird richness and landscape characteristics across the entire mid-Atlantic region of the United States. We evaluated how these relationships varied among different groupings (guilds) of birds based on functional, structural, and compositional aspects of individual species demographics. Forest edge was by far the most important landscape attribute affecting the richness of the lumped specialist and generalist guilds; specialist species richness was negatively associated with forest edge and generalist richness was positively associated with forest edge. Landscape variables (indicators) explained a greater proportion of specialist species richness than the generalist guild (46% and 31%, respectively). The lower value in generalists may reflect finer-scale distributions of open habitat that go undetected by the Landsat satellite, open habitats created by roads (the areas from which breeding bird data are obtained), and the lumping of a wide variety of species into the generalist category. A further breakdown of species into 16 guilds showed considerable variation in the response of breeding birds to landscape conditions; forest obligate species had the strongest association with landscape indicators measured in this study (55% of the total variation explained) and forest generalists and open ground nesters the lowest (17% of the total variation explained). The variable response of guild species richness to landscape pattern suggests that one must consider species' demographics when assessing the consequences of landscape change on breeding birds. JF - Environmental Monitoring and Assessment AU - Jones, K B AU - Neale, A C AU - Nash AU - Riitters, KH AU - Wickham, J D AU - O'Neill, R V AU - Van Remortel, RD Y1 - 2000/07/01/ PY - 2000 DA - 2000 Jul 01 SP - 159 EP - 174 PB - Kluwer Academic Publishers, Postbus 17 Dordrecht 3300 AA Netherlands VL - 63 IS - 1 KW - Birds KW - USA, Mid-Atlantic Region KW - Ecology Abstracts KW - Aves KW - Landsat KW - Guilds KW - Landscape KW - Species richness KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17682400?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Landscape+correlates+of+breeding+bird+richness+across+the+United+States+mid-Atlantic+region&rft.au=Jones%2C+K+B%3BNeale%2C+A+C%3BNash%3BRiitters%2C+KH%3BWickham%2C+J+D%3BO%27Neill%2C+R+V%3BVan+Remortel%2C+RD&rft.aulast=Jones&rft.aufirst=K&rft.date=2000-07-01&rft.volume=63&rft.issue=1&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/10.1023%2FA%3A1006415029890 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1023/A:1006415029890 ER - TY - CONF T1 - Finding common ground in managing data used for regional environmental assessments AN - 17682325; 4767654 AB - Evaluating the overall environmental health of a region invariably involves using databases from multiple organizations. Several approaches to deal with the related technological and sociological issues have been used by various programs. Flexible data systems are required to deal with rapid changes in technology, the social and political climate for sharing and integrating data, and expectations of diverse users. Here we describe how the Environmental Monitoring and Assessment Program and the Chesapeake Bay Program manage their data for regional studies. These programs, which encompass areas of different geographic scales but face similar issues, have adopted some solutions in common, but also have tried some unique solutions suited to their needs. Understanding the tribulations and successes of these programs may help others attempting similar assessments. Both these programs have embraced distributed data systems that are managed by the organizations owning them. Both use common guidelines and policies that assure consistency and quality of data and information. These principles and tools comprise a flexible, sustainable approach that meets modern challenges of data management. JF - Environmental Monitoring and Assessment AU - Hale, S S AU - Bahner, L H AU - Paul, J F Y1 - 2000/07/01/ PY - 2000 DA - 2000 Jul 01 SP - 143 EP - 157 PB - Kluwer Academic Publishers, Postbus 17 Dordrecht 3300 AA Netherlands VL - 63 IS - 1 KW - Chesapeake Bay Program KW - Environmental Monitoring and Assessment Program KW - Ecology Abstracts KW - Databases KW - Data processing KW - Methodology KW - Information systems KW - D 04700:Management KW - D 04001:Methodology - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17682325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Finding+common+ground+in+managing+data+used+for+regional+environmental+assessments&rft.au=Hale%2C+S+S%3BBahner%2C+L+H%3BPaul%2C+J+F&rft.aulast=Hale&rft.aufirst=S&rft.date=2000-07-01&rft.volume=63&rft.issue=1&rft.spage=143&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/10.1023%2FA%3A1006410912143 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1023/A:1006410912143 ER - TY - JOUR T1 - Contaminant adsorption and oxidation via Fenton reaction AN - 17677409; 4737372 AB - A ground-water treatment process is described in which contaminants are adsorbed onto granulated activated carbon (GAC) containing fixed iron oxide. Hydrogen peroxide (H sub(2)O sub(2)) is amended to the GAC suspension and reacts with the iron, forming hydroxyl radicals ( super( times )OH). The radicals react with and oxidize sorbed and soluble contaminants regenerating the carbon surface. Laboratory results are presented in which 2-chlorophenol (2CP) was first adsorbed to GAC and subsequently oxidized via the Fenton-driven mechanism. Transformation of 2CP was indicated by the formation of carboxylic acids and Cl super(-) release. The treatment efficiency of 2CP, defined as the molar ratio of Cl super(-) released to H sub(2)O sub(2) consumed, increased with increasing amounts of iron oxide and 2CP on the GAC. The extent of 2CP oxidation increased with H sub(2)O sub(2) concentration. Lower treatment efficiency was evident at the highest H sub(2)O sub(2) concentration utilized (2.1 M) and was attributed to increased super( times )OH scavenging by H sub(2)O sub(2) Aggressive oxidation procedures used in sequential adsorption/oxidation cycles did not alter the GAC surface to a degree that significantly interfered with subsequent 2CP adsorption reactions. Although process feasibility has not yet been established beyond bench-scale, experimental results illustrate the potential utility of the adsorption/oxidation process in aboveground systems or permeable reactive barriers for the treatment of contaminated ground water. JF - Journal of Environmental Engineering AU - Huling, S G AU - Arnold, R G AU - Sierka, R A AU - Jones, P K AU - Fine, D D AD - U.S. Envir. Protection Agency, Nat. Risk Mgmt. and Res. Lab., P.O. Box 1198, Ada, OK 74820, USA, Huling.Scott@EPA.GOV Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 595 EP - 600 VL - 126 IS - 7 SN - 0733-9372, 0733-9372 KW - Water Resources Abstracts; Aqualine Abstracts KW - Fentons Reagent KW - Water Pollution Treatment KW - Activated carbon KW - Groundwater Pollution KW - Chemical treatment KW - Pollution (Groundwater) KW - Water treatment KW - Chemical Reactions KW - Oxidation KW - Fenton's reagent KW - Activated Carbon KW - Chemical Treatment KW - SW 3070:Water quality control KW - AQ 00004:Water Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17677409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Engineering&rft.atitle=Contaminant+adsorption+and+oxidation+via+Fenton+reaction&rft.au=Huling%2C+S+G%3BArnold%2C+R+G%3BSierka%2C+R+A%3BJones%2C+P+K%3BFine%2C+D+D&rft.aulast=Huling&rft.aufirst=S&rft.date=2000-07-01&rft.volume=126&rft.issue=7&rft.spage=595&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Engineering&rft.issn=07339372&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Pollution (Groundwater); Water treatment; Activated carbon; Oxidation; Chemical treatment; Fenton's reagent; Fentons Reagent; Water Pollution Treatment; Chemical Reactions; Groundwater Pollution; Chemical Treatment; Activated Carbon ER - TY - JOUR T1 - Distribution and Composition of Dissolved and Particulate Organic Carbon in Northern San Francisco Bay During Low Flow Conditions AN - 17670927; 4757903 AB - Dissolved and particulate organic matter were studied in northern San Francisco Bay estuary on seven dates from April to October 1996 when flow from the Sacramento and San Joaquin river Delta was declining. Measurements were made at three to 11 stations (usually eight) along the salinity gradient from the Sacramento River to the Central Bay. Dissolved constituents included monosaccharides (MONO), total carbohydrates (TCHO), dissolved primary amines (DPA), dissolved organic carbon (DOC), and the fluorescence of humic substances (HF). Particulate constituents included bulk suspended particulate matter (SPM), chlorophyll a (CHL), particulate organic carbon (POC) and particulate organic nitrogen (PON). April was distinct from subsequent months due to very high DOC and MONO concentrations and somewhat elevated TCHO, DPA and HF concentrations. DOC, MONO, TCHO and HF concentrations generally decreased with increasing salinity suggesting an upper estuarine source of these constituents. In contrast, DPA had a bimodal distribution suggesting both upper and lower estuarine sources. There was evidence of a persistent, additional source of organic matter near Suisun Bay that was high in DOC and HF, but low in DPA. It was speculated that this material originated from one or more of the following: (a) the San Joaquin River, (b) exchange with the shoals and intertidal reaches of Suisun Bay, and (c) flux of DOC from particulate organic matter (POM). The particulate organic constituents, POC and PON, strongly correlated with SPM but not with CHL, suggesting that sediments were relatively important and phytoplankton were relatively unimportant contributors to POM pools. JF - Estuarine, Coastal and Shelf Science AU - Murrell, M C AU - Hollibaugh, J T AD - U.S. EPA, Gulf Ecology Division, One Sabine Island Drive, Gulf Breeze, FL 32561, U.S.A., murrell.michael@epa.gov Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 75 EP - 90 PB - Academic Press VL - 51 IS - 1 SN - 0272-7714, 0272-7714 KW - USA, California KW - USA, California, San Francisco Bay KW - Ecology Abstracts; Water Resources Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 1: Biological Sciences & Living Resources KW - Particulate organic nitrogen KW - Chlorophylls KW - Chlorophyll KW - Particulate organic carbon KW - Water flow KW - Organic Carbon KW - Estuaries KW - Low Flow KW - Carbon cycle KW - Phytoplankton KW - Suspended particulate matter KW - Particulate organic matter KW - Particulate Matter KW - INE, USA, California, San Francisco Bay KW - Q1 08461:Plankton KW - Q2 09184:Composition of water KW - O 1080:Multi-disciplinary Studies KW - SW 0890:Estuaries KW - D 04320:Brackishwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17670927?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Estuarine%2C+Coastal+and+Shelf+Science&rft.atitle=Distribution+and+Composition+of+Dissolved+and+Particulate+Organic+Carbon+in+Northern+San+Francisco+Bay+During+Low+Flow+Conditions&rft.au=Murrell%2C+M+C%3BHollibaugh%2C+J+T&rft.aulast=Murrell&rft.aufirst=M&rft.date=2000-07-01&rft.volume=51&rft.issue=1&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Estuarine%2C+Coastal+and+Shelf+Science&rft.issn=02727714&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Chlorophylls; Particulate organic nitrogen; Particulate organic carbon; Particulate organic matter; Estuaries; Phytoplankton; Suspended particulate matter; Water flow; Carbon cycle; Chlorophyll; Organic Carbon; Particulate Matter; Low Flow; INE, USA, California, San Francisco Bay ER - TY - JOUR T1 - Optimization of a precision-cut trout liver tissue slice assay as a screen for vitellogenin induction: comparison of slice incubation techniques AN - 17659174; 4735023 AB - An in vitro male rainbow trout liver slice assay has been developed for long-term incubation of precision-cut slices for the detection of vitellogenin (VTG) protein induction in response to xenobiotic chemicals. The assay was optimized to allow 72 h of incubation of slices to maximize detection of VTG, while maintaining slice viability. Two methods of incubation frequently used with rat liver slices were compared: (1) slices were submerged in media (11 degree C) and cultured in 12-well plates (PL) with continuous shaking; or (2) slices were floated onto titanium screens, placed into glass vials, and held under dynamic organ culture (DOC) conditions (11 degree C). Slices (200 mu m) in modified L-15 media were exposed to 1.0 mu M 17 beta -estradiol (E2) or diethylstilbestrol (DES). Protein from media and slice was sampled for Western blot analysis, using a polyclonal antibody to detect appearance of VTG protein. Maximum VTG was seen at 72 h, with detectable protein at 24 and 48 h in slices and media following PL incubation. In contrast, slices incubated in DOC showed little detectable VTG above background levels after 72 h. This difference was not attributable to protein loss to vial or plate surfaces. Standard viability assays did not reveal any differences between slices incubated in PL or DOC. However, histopathological examination revealed earlier and more severe vacuolization in slices incubated in DOC. Significantly more E2 uptake and conversion to water-soluble metabolites was noted in PL, compared with DOC, as well as more production of VTG in response to DES and E2, correlated with less histologic change. The in vitro assay described allows tissue-level assessment of estrogenicity in aquatic organisms, and will be useful for assessing not only comparative species receptor binding and transactivation, but also the role of tissue-specific activation factors in the estrogenic response of fish. JF - Aquatic Toxicology AU - Schmieder, P AU - Tapper, M AU - Linnum, A AU - Denny, J AU - Kolanczyk, R AU - Johnson, R AD - US Environmental Protection Agency, Mid-Continent Ecology Division, 6201 Congdon Boulevard, 55804 Duluth, MN USA Y1 - 2000/07/01/ PY - 2000 DA - 2000 Jul 01 SP - 251 EP - 268 PB - Elsevier VL - 49 IS - 4 SN - 0166-445X, 0166-445X KW - Salmonids KW - bioassays KW - diethylstilbestrol KW - estrogens KW - vitellogenin KW - Aqualine Abstracts; Toxicology Abstracts; Pollution Abstracts; Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - Aquatic organisms KW - Males KW - Tissues (Biological) KW - Pollution effects KW - Xenobiotics KW - Freshwater KW - Tissue Analysis KW - Toxicity tests KW - Sex hormones KW - Pisces KW - Protein synthesis KW - Pollutants KW - Exposure KW - Oncorhynchus KW - Assay KW - 17 beta -Estradiol KW - Salmonidae KW - Marine KW - Estrogens KW - Vitellogenesis KW - Brackish KW - Bioaccumulation KW - Bioassays KW - Trout KW - Trout (Freshwater) (see also Fish (Salmonid)) KW - Liver KW - Proteins KW - Sampling methods KW - Q1 08346:Physiology, biochemistry, biophysics KW - X 24222:Analytical procedures KW - Q5 08504:Effects on organisms KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17659174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+Toxicology&rft.atitle=Optimization+of+a+precision-cut+trout+liver+tissue+slice+assay+as+a+screen+for+vitellogenin+induction%3A+comparison+of+slice+incubation+techniques&rft.au=Schmieder%2C+P%3BTapper%2C+M%3BLinnum%2C+A%3BDenny%2C+J%3BKolanczyk%2C+R%3BJohnson%2C+R&rft.aulast=Schmieder&rft.aufirst=P&rft.date=2000-07-01&rft.volume=49&rft.issue=4&rft.spage=251&rft.isbn=&rft.btitle=&rft.title=Aquatic+Toxicology&rft.issn=0166445X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Protein synthesis; Vitellogenesis; Bioassays; Males; Liver; Pollution effects; Toxicity tests; Sex hormones; Estrogens; 17 beta -Estradiol; Xenobiotics; Pisces; Aquatic organisms; Proteins; Sampling methods; Bioaccumulation; Pollutants; Trout (Freshwater) (see also Fish (Salmonid)); Assay; Tissues (Biological); Trout; Exposure; Tissue Analysis; Oncorhynchus; Salmonidae; Freshwater; Brackish; Marine ER - TY - JOUR T1 - Estrogenicity of alkylphenolic compounds: A 3-D structure-activity evaluation of gene activation AN - 17618577; 4758334 AB - A structure-activity relationship evaluation of alkylphenol activation of a human estrogen receptor (hER) reporter gene construct was done using the Common Reactivity Pattern approach. Energetically reasonable conformer distributions for selected steric and electronic chemical descriptors were presented and analyzed. Comparisons of descriptor distributions across active and nonactive chemicals allowed determination of a common reactivity pattern for hER activation. Chemicals capable of hER binding and gene transcription have high density of O-C{sp super(3)} distances, from 6.2 to 6.5 Angstrom; maximum distances between atoms in the molecule, ranging from 9.9 to 10.1 Angstrom; and a population density on the lowest unoccupied molecular orbital for O-atoms from 0.09 to 0.12 AU. Alkylphenols that were nonactive in the recombinant yeast cell assay lacked these stereoelectronic requirements, presumably precluding receptor occupancy or necessary estrogen response element interaction. Derived reactivity patterns were successfully coded into decision trees used to screen additional alkylphenols for potential hER activation. Successful structure-activity relationship modeling and prediction of gene activation for 26 of 29 alkylphenols is an additional step in the elucidation of chemical steric and electronic three-dimensional parameters that predict which xenobiotics are likely to be estrogenic and demonstrates a valuable tool for screening and prioritization of chemicals for further testing. JF - Environmental Toxicology and Chemistry AU - Schmieder, P K AU - Aptula, A O AU - Routledge, E J AU - Sumpter, J P AU - Mekenyan, O G AD - U.S. Environmental Protection Agency, Mid-Continent Ecology Division, Duluth, Minnesota 55804, USA, schmieder.patricia@epa.gov Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 1727 EP - 1740 VL - 19 IS - 7 SN - 0730-7268, 0730-7268 KW - xenoestrogens KW - alkylphenols KW - Toxicology Abstracts KW - Reporter gene KW - Structure-activity relationships KW - Estrogen receptors KW - X 24155:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17618577?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Estrogenicity+of+alkylphenolic+compounds%3A+A+3-D+structure-activity+evaluation+of+gene+activation&rft.au=Schmieder%2C+P+K%3BAptula%2C+A+O%3BRoutledge%2C+E+J%3BSumpter%2C+J+P%3BMekenyan%2C+O+G&rft.aulast=Schmieder&rft.aufirst=P&rft.date=2000-07-01&rft.volume=19&rft.issue=7&rft.spage=1727&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Estrogen receptors; Reporter gene; Structure-activity relationships ER - TY - JOUR T1 - Comparison of Computer Simulations of Total Lung Deposition to Human Subject Data in Healthy Test Subjects AN - 17607509; 4752516 AB - A mathematical model was used to predict the deposition fractions (DF) of PM within human lungs. Simulations using this computer model were previously validated with human subject data and were used as a control case. Human intersubject variation was accounted for by scaling the base lung morphology dimensions based on measured functional residual capacity (FRC) values. Simulations were performed for both controlled breathing (tidal volumes [V sub(T)] of 500 and 1000 mL, respiratory times [T] from 2 to 8 sec) and spontaneous breathing conditions. Particle sizes ranged from 1 to 5 mu m. The deposition predicted from the computer model compared favorably with the experimental data. For example, when V sub(T) = 1000 mL and T = 2 sec, the error was 1.5%. The errors were slightly higher for smaller tidal volumes. Because the computer model is deterministic (i.e., derived from first principles of physics), the model can be used to predict deposition fractions for a range of situations (i.e., for different ventilatory parameters and particle sizes) for which data are not available. Now that the model has been validated, it may be applied to risk assessment efforts to estimate the inhalation hazards of airborne pollutants. JF - Journal of the Air & Waste Management Association AU - Segal, R A AU - Martonen, T B AU - Kim, C S AD - Mathematics Department, North Carolina State University, Raleigh, North Carolina and U.S. Environmental Protection Agency, ETD, NHEERL, Research Triangle Park, North Carolina, USA Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 1262 EP - 1268 VL - 50 IS - 7 SN - 1047-3289, 1047-3289 KW - Health & Safety Science Abstracts; Pollution Abstracts KW - Inhalation KW - Pollution effects KW - Particulates KW - Respiratory function KW - Mathematical models KW - Air pollution KW - H 12000:Epidemiology and Public Health KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17607509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association&rft.atitle=Comparison+of+Computer+Simulations+of+Total+Lung+Deposition+to+Human+Subject+Data+in+Healthy+Test+Subjects&rft.au=Segal%2C+R+A%3BMartonen%2C+T+B%3BKim%2C+C+S&rft.aulast=Segal&rft.aufirst=R&rft.date=2000-07-01&rft.volume=50&rft.issue=7&rft.spage=1262&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association&rft.issn=10473289&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Particulate matter and health - The scientific basis for regulatory decision making. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Particulates; Mathematical models; Respiratory function; Air pollution; Pollution effects; Inhalation ER - TY - JOUR T1 - Toward error analysis of large-scale forest carbon budgets AN - 17562774; 4761141 AB - Quantification of forest carbon sources and sinks is an important part of national inventories of net greenhouse gas emissions. Several such forest carbon budgets have been constructed, but little effort has been made to analyse the sources of error and how these errors propagate to determine the overall uncertainty of projected carbon fluxes. We performed an error analysis for estimates of tree volume and volume change determined by repeated measurements of permanent sample plots for the South-eastern United States as a step toward assessing errors in the carbon budget constructed by the USDA Forest Service. Error components recognized were: sampling error for sample plot selection; measurement error for tree height and diameter; and regression error for tree volume. Most of the propagated error in volume and volume change estimation was due to sampling error. Error estimates depended on the size of the area examined (single state to region) and the degree to which tree growth and recruitment balanced mortality and harvesting. Approximate regional 95% confidence intervals were 3 455 073 000 plus or minus 39 606 000 (1.1%) m super(3) for current growing-stock volume, and 10 616 000 plus or minus 4210 000 (39.7%) m super(3) years super(-1) for growing-stock volume change. These methods should be useful in further analysis of the sources of error and overall uncertainty in national efforts to quantify carbon fluxes associated with forests and land cover dynamics. JF - Global Ecology and Biogeography AU - Phillips, D L AU - Brown, S L AU - Schroeder, P E AU - Birdsey, R A AD - U. S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, 200 SW 35th Street, Corvallis, OR 97333, USA, don@mail.cor.epa.gov Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 305 EP - 313 VL - 9 IS - 4 SN - 1466-822X, 1466-822X KW - USA KW - Ecology Abstracts KW - Carbon cycle KW - Forests KW - Sampling KW - D 04001:Methodology - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17562774?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Global+Ecology+and+Biogeography&rft.atitle=Toward+error+analysis+of+large-scale+forest+carbon+budgets&rft.au=Phillips%2C+D+L%3BBrown%2C+S+L%3BSchroeder%2C+P+E%3BBirdsey%2C+R+A&rft.aulast=Phillips&rft.aufirst=D&rft.date=2000-07-01&rft.volume=9&rft.issue=4&rft.spage=305&rft.isbn=&rft.btitle=&rft.title=Global+Ecology+and+Biogeography&rft.issn=1466822X&rft_id=info:doi/10.1046%2Fj.1365-2699.2000.00197.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sampling; Forests; Carbon cycle DO - http://dx.doi.org/10.1046/j.1365-2699.2000.00197.x ER - TY - JOUR T1 - The Practice of Structure Activity Relationships (SAR) in Toxicology AN - 17559024; 4746286 AB - Both qualitative and quantitative modeling methods relating chemical structure to biological activity, called structure-activity relationship analyses or SAR, are applied to the prediction and characterization of chemical toxicity. This minireview will discuss some generic issues and modeling approaches that are tailored to problems in toxicology. Different approaches to, and some facets and limitations of the practice and science of, SAR as they pertain to current toxicology analyses, and the basic elements of SAR and SAR-model development and prediction systems are discussed. Other topics include application of 3-D SAR to understanding of the propensity of chemicals to cause endocrine disruption, and the use of models to analyze biological activity of metal ions in toxicology. An example of integration of knowledge pertaining to mechanisms into an expert system for prediction of skin sensitization to chemicals is also discussed. This minireview will consider the utility of modeling approaches as one component for better integration of physicochemical and biological properties into risk assessment, and also consider the potential for both environmental and human health effects of chemicals and their interactions. JF - Toxicological Sciences AU - McKinney, J D AU - Richard, A AU - Waller, C AU - Newman, M C AU - Gerberick, F AD - United States Environmental Protection Agency/NHEERL, 111 Alexander Drive, Research Triangle Park, NC 27711, USA Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 8 EP - 17 VL - 56 IS - 1 SN - 1096-6080, 1096-6080 KW - Toxicology Abstracts KW - Risk assessment KW - Reviews KW - Chemical pollution KW - Structure-activity relationships KW - Public health KW - Models KW - X 24250:Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17559024?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=The+Practice+of+Structure+Activity+Relationships+%28SAR%29+in+Toxicology&rft.au=McKinney%2C+J+D%3BRichard%2C+A%3BWaller%2C+C%3BNewman%2C+M+C%3BGerberick%2C+F&rft.aulast=McKinney&rft.aufirst=J&rft.date=2000-07-01&rft.volume=56&rft.issue=1&rft.spage=8&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Structure-activity relationships; Reviews; Models; Chemical pollution; Risk assessment; Public health ER - TY - JOUR T1 - Sulfide scale catalysis of copper corrosion AN - 17551975; 4737257 AB - The presence of soluble sulfides in a low alkalinity simulated drinking water increased copper pipe corrosion rates by more than one order of magnitude at pH 6.5 and more than two orders of magnitude at pH 9.2. Sulfides caused formation of a thick, black porous scale layer on pipes that did not significantly reduce pipe corrosion rates even after 9 months of exposure. In fact, both the anodic and cathodic reactions were catalyzed when sulfide containing scale was smeared onto a new copper pipe surface. Sulfide scales have a unique ability to accelerate copper corrosion even at pH > 9.0, with potentially devastating consequences for copper tube performance in potable water applications. JF - Water Research AU - Jacobs, S AU - Edwards, M AD - US Environmental Protection Agency, Indian Programs Office, 75 Hawthorne Street (CMD-3), San Francisco, CA 94105-3901, USA Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 2798 EP - 2808 VL - 34 IS - 10 SN - 0043-1354, 0043-1354 KW - Water Resources Abstracts KW - Pipes KW - Drinking Water KW - Potable Water KW - Alkalinity KW - Sulfides KW - Corrosion KW - Simulation KW - Hydrogen Ion Concentration KW - Copper KW - Catalysts KW - Scaling KW - SW 6070:Materials UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17551975?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Research&rft.atitle=Sulfide+scale+catalysis+of+copper+corrosion&rft.au=Jacobs%2C+S%3BEdwards%2C+M&rft.aulast=Jacobs&rft.aufirst=S&rft.date=2000-07-01&rft.volume=34&rft.issue=10&rft.spage=2798&rft.isbn=&rft.btitle=&rft.title=Water+Research&rft.issn=00431354&rft_id=info:doi/10.1016%2FS0043-1354%2800%2900025-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sulfides; Catalysts; Copper; Corrosion; Alkalinity; Drinking Water; Hydrogen Ion Concentration; Scaling; Pipes; Potable Water; Simulation DO - http://dx.doi.org/10.1016/S0043-1354(00)00025-7 ER - TY - JOUR T1 - Restored riparian buffers as tools for ecosystem restoration in the MAIA; processes, endpoints, and measures of success for water, soil, flora, and fauna AN - 17030209; 4767658 AB - Riparian buffer restorations are used as management tools to produce favorable water quality impacts, moreover among the many benefits riparian buffers may provide, their application as instruments for water quality restoration rests on a relatively firm foundation of research. However, the extent to which buffers can restore riparian ecosystems; their functionality and species composition, are essentially unknown. In light of the foregoing, two broad areas of research are indicated. First, data are needed to document the relative effectiveness of riparian buffers that differ according to width, length, and plant species composition. These questions, of managing buffer dimension and species composition for functionality, are of central importance even when attenuation of nutrient and sediment loads alone are considered. Second, where ecosystem restoration is the goal, effects to in-stream and terrestrial riparian biota need to be considered. Relatedly, the effects of the restoration on the landscape need to be considered. Particularly, at what rate do the effects of the riparian buffer on in-stream water quality, biota, and habitat diminish downstream from restored sites? Answers to these important questions are needed, for streams and watersheds of different size and for areas of differing soil type within watersheds. U.S. EPA-NRMRL has initiated a research project that will document the potential for buffers to restore riparian ecosystems; focusing on water quality effects, but also, importantly, documenting effects on biota. While substantial riparian buffer management initiatives are already underway, the extent of landscapes that influence riparian ecosystems in the eastern United States is large; leaving ample opportunity for this suggested research to provide improved buffer designs in the future. The ultimate goal of research projects developed under this paradigm of ecosystem restoration is to develop data that are needed to implement riparian buffer restorations in the mid-Atlantic and elsewhere, especially the eastern United States. JF - Environmental Monitoring and Assessment AU - Jorgensen, EE AU - Canfield, T J AU - Kutz, F W AD - U.S. Environmental Protection Agency, National Risk Management Research Laboratory, P.O. Box 1198, Ada, OK 74820, USA Y1 - 2000/07/01/ PY - 2000 DA - 2000 Jul 01 SP - 199 EP - 210 PB - Kluwer Academic Publishers, Postbus 17 Dordrecht 3300 AA Netherlands VL - 63 IS - 1 SN - 0167-6369, 0167-6369 KW - Buffer dimension KW - Buffer species composition KW - USA, Mid-Atlantic KW - USA, Mid-Atlantic Region KW - riparian buffers KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - ecosystem recovery KW - Land Management KW - Ecosystems KW - Land KW - Man-induced effects KW - Nutrients KW - Freshwater KW - Watersheds KW - Water quality KW - Restoration KW - Ecology KW - Research programmes KW - Catchment areas KW - Buffers KW - Riparian Land KW - Ecosystem management KW - Riparian environments KW - Soil (types of) KW - Water Quality Control KW - Sediment/water system KW - Rivers KW - Land use KW - Water quality control KW - Habitat improvement KW - Soil Types KW - Sediment Load KW - Environmental restoration KW - Environment management KW - Q5 08523:Conservation, wildlife management and recreation KW - SW 5010:Network design KW - AQ 00002:Water Quality KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17030209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Restored+riparian+buffers+as+tools+for+ecosystem+restoration+in+the+MAIA%3B+processes%2C+endpoints%2C+and+measures+of+success+for+water%2C+soil%2C+flora%2C+and+fauna&rft.au=Jorgensen%2C+EE%3BCanfield%2C+T+J%3BKutz%2C+F+W&rft.aulast=Jorgensen&rft.aufirst=EE&rft.date=2000-07-01&rft.volume=63&rft.issue=1&rft.spage=199&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/10.1023%2FA%3A1006491702574 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Research programmes; Water quality control; Rivers; Habitat improvement; Buffers; Riparian environments; Ecosystem management; Man-induced effects; Environment management; Land use; Restoration; ecosystem recovery; Environmental restoration; Water quality; Ecology; Catchment areas; Land; Soil (types of); Nutrients; Sediment/water system; Ecosystems; Land Management; Riparian Land; Sediment Load; Soil Types; Watersheds; Water Quality Control; Freshwater DO - http://dx.doi.org/10.1023/A:1006491702574 ER - TY - JOUR T1 - Using information on spatial variability of small estuaries in designing large-scale estuarine monitoring programs AN - 16134594; 4767660 AB - In the early 1990s, EPA's Environmental Monitoring and Assessment Program (EMAP) documented the ecological condition of the overall population of small estuaries along the mid-Atlantic coast of the United States. However, the Program did not provide detailed information on the condition of individual estuaries less than 260 km super(2) in surface area, a group of estuaries of concern to environmental managers. To address the needs of environmental managers, when EMAP returned to the region in summer 1997, it included a study of the spatial variability of ecological indicators within individual small estuaries. At 127 probability-based sites in 10 estuaries, EMAP measured a variety of parameters of water quality and sediments, including dissolved oxygen (DO), nutrients, grain size of sediments, contaminants in sediments, and community structures of benthic macroinvertebrates. From this information the ecological condition (e.g., percent area with DO concentrations below 5mg L super(-1)) for each estuary, along with 90% confidence interval, was determined. The width of the confidence interval was then recalculated for sample sizes ranging from two stations to the total number of stations sampled in that estuary. Confidence interval widths were then plotted against sample size. These plots can be useful in designing future regional monitoring programs with a goal of describing conditions in individual systems as well as broad geographic regions. Results illustrate that beyond five stations per estuary, the reduction in the width of the confidence interval with increasing sampling intensity is relatively small; however, individual program managers need to determine "how small is small enough." JF - Environmental Monitoring and Assessment AU - Strobel, C J AU - Paul, J F AU - Hughes, M M AU - Buffum, H W AU - Brown, B S AU - Summers, J K AD - U.S. Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA, strobel.charles@epa.gov Y1 - 2000/07/01/ PY - 2000 DA - 2000 Jul 01 SP - 223 EP - 236 PB - Kluwer Academic Publishers, Postbus 17 Dordrecht 3300 AA Netherlands VL - 63 IS - 1 SN - 0167-6369, 0167-6369 KW - USA, Mid-Atlantic Region KW - Pollution Abstracts; Ecology Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Aqualine Abstracts KW - Pollution monitoring KW - Ecosystems KW - Environmental Quality KW - Sediment KW - Water quality KW - Ecology KW - Water Quality Management KW - Sampling KW - Data Collections KW - Environmental monitoring KW - Marine KW - Sediment pollution KW - Brackishwater pollution KW - Estuaries KW - Physicochemical properties KW - Dissolved Oxygen KW - Brackish KW - Environmental quality standards KW - Data collections KW - USA, Mid-Atlantic Bight KW - Sediments KW - Methodology KW - Water quality control KW - USA, Mid-Atlantic KW - Community composition KW - Ecological balance KW - ANW, USA, Mid-Atlantic Bight KW - Monitoring KW - Oxygen (Dissolved) KW - Environment management KW - Research programs KW - D 04700:Management KW - SW 5010:Network design KW - P 9000:ENVIRONMENTAL ACTION KW - O 4090:Conservation and Environmental Protection KW - D 04001:Methodology - general KW - SW 0890:Estuaries KW - Q5 08501:General KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16134594?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Using+information+on+spatial+variability+of+small+estuaries+in+designing+large-scale+estuarine+monitoring+programs&rft.au=Strobel%2C+C+J%3BPaul%2C+J+F%3BHughes%2C+M+M%3BBuffum%2C+H+W%3BBrown%2C+B+S%3BSummers%2C+J+K&rft.aulast=Strobel&rft.aufirst=C&rft.date=2000-07-01&rft.volume=63&rft.issue=1&rft.spage=223&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2001-07-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Pollution monitoring; Sediment pollution; Community composition; Ecological balance; Brackishwater pollution; Physicochemical properties; Estuaries; Water quality; Environment management; Research programs; Methodology; Water quality control; Ecology; Sediment; Environmental quality standards; Sampling; Data collections; Monitoring; Oxygen (Dissolved); Ecosystems; Environmental Quality; Water Quality Management; Dissolved Oxygen; Sediments; Data Collections; USA, Mid-Atlantic; ANW, USA, Mid-Atlantic Bight; USA, Mid-Atlantic Bight; Marine; Brackish ER - TY - JOUR T1 - Perspectives on setting success criteria for wetland restoration AN - 16133101; 5133305 AB - The task of determining the success of wetland restoration has long been challenging and sometimes contentious because success is an imprecise term that means different things in different situations and to different people. Compliance success is determined by evaluating compliance with the terms of an agreement, e.g. a contract or permit, whereas functional success is determined by evaluating whether the ecological functions of the system have been restored. Compliance and functional success have historically focused on the individual project (the site being restored); we are only beginning to consider another important factor, the success of restoration at the landscape scale. Landscape success is a measure of how restoration (or management, in general) has contributed to the ecological integrity of the region or landscape and to achievement of goals such as the maintenance of biodiversity. The utility of all definitions of success is ultimately constrained by the current status of the science of restoration ecology and by our ability to use that information to make sound management decisions and to establish measurable success criteria. Measurements of vegetation are most commonly used in evaluations of restoration projects, with less frequent analysis of soils, fauna, and hydrologic characteristics. Although particular characteristics of projects, such as vegetative cover and production, can resemble those in similar naturally occurring wetlands, overall functional equivalency has not been demonstrated. However, ongoing research is providing information on what can and cannot be accomplished, valuable insights on how to correct mistakes, and new approaches to defining success. The challenge is how to recognize and deal with the uncertainty, given that projects are ecologically young and that our knowledge of the process of restoration is evolving. One way to deal with the uncertainty is to use scientific principles of hypothesis testing and model building in an adaptive management framework. In this way, options can be systematically evaluated and needs for corrective actions identified when a project is not progressing toward goals. By taking such an approach we can improve our ability to reliably restore wetlands while contributing to our understanding of the basic structure and function of ecosystems. JF - Ecological Engineering AU - Kentula, ME AD - National Health and Environmental Effects Laboratory, Western Ecology Division, U.S. Environmental Protection Agency, 200 SW 35th Street, Corvallis, OR 97333, USA Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 199 EP - 209 VL - 15 IS - 3-4 SN - 0925-8574, 0925-8574 KW - Compliance success KW - Functional success KW - Landscape success KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Ecology Abstracts; Sustainability Science Abstracts KW - Compliance KW - Biodiversity KW - Models KW - Restoration KW - Ecology KW - Natural Resources KW - Biota KW - Structure-function relationships KW - Planning KW - Ecosystem management KW - Environmental Policy KW - Soil fauna KW - Hydrology KW - Wetlands KW - Ecological evaluation KW - Environmental Protection KW - Performance Evaluation KW - Terminology KW - Conservation KW - Environmental restoration KW - Environment management KW - M3 1120:Land KW - P 9000:ENVIRONMENTAL ACTION KW - SW 4010:Techniques of planning KW - Q5 08522:Protective measures and control KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16133101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Engineering&rft.atitle=Perspectives+on+setting+success+criteria+for+wetland+restoration&rft.au=Kentula%2C+ME&rft.aulast=Kentula&rft.aufirst=ME&rft.date=2000-07-01&rft.volume=15&rft.issue=3-4&rft.spage=199&rft.isbn=&rft.btitle=&rft.title=Ecological+Engineering&rft.issn=09258574&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-05-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Ecology; Biota; Terminology; Ecosystem management; Biodiversity; Hydrology; Wetlands; Environment management; Restoration; Ecological evaluation; Structure-function relationships; Soil fauna; Environmental restoration; Models; Compliance; Performance Evaluation; Natural Resources; Planning; Environmental Policy; Conservation; Environmental Protection ER - TY - JOUR T1 - Periphyton community responses to elevated metal concentrations in a Rocky Mountain stream AN - 18389997; 5373307 AB - The effects of elevated metals on stream periphyton in the Eagle River, a mining impacted river in central Colorado, were assessed in 1991 and 1992 using assemblage information (taxa richness, community similarity) and non-taxonomic measures (biomass, chlorophyll a, autotrophic index). The number of periphyton genera collected ranged from 2 at a site adjacent to abandoned mining operations to 21 at a downstream site, but was not significantly correlated with dissolved metals concentrations. Fragilaria and Achnanthes were the dominant genera at all sites, with Fragilaria dominating the less impacted sites and Achnanthes dominating at the more impacted sites. Taxonomic similarity was greatest among those sites receiving the greatest inputs of metals from mining operations, where the coefficient of similarity ranged from 0.87 to 0.99. Cluster analyses revealed significant differences among sites adjacent to the mine and either the upstream or downstream sites. Chlorophyll a content of periphyton and the autotrophic index in both years showed significant downstream decreases associated with increasing dissolved metals concentrations. Overall, the periphyton community data were able to separate metal contaminated sites from reference or less impacted sites, and responded in predictable ways to increasing metal concentrations of Eagle River water. JF - Hydrobiologia AU - Hill, B H AU - Willingham, W T AU - Parrish, L P AU - McFarland, B H AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory, Ecological Exposure Research Division, 26 W. Martin Luther King Drive, Cincinnati, OH 45268, USA Y1 - 2000/06/15/ PY - 2000 DA - 2000 Jun 15 SP - 161 EP - 169 VL - 428 IS - 1-3 SN - 0018-8158, 0018-8158 KW - Chlorophylls KW - Ecology Abstracts; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Microbiology Abstracts C: Algology, Mycology & Protozoology; ASFA 1: Biological Sciences & Living Resources KW - Freshwater KW - K 03009:Algae KW - D 04310:Freshwater KW - P 2000:FRESHWATER POLLUTION KW - Q5 01504:Effects on organisms KW - Q1 01462:Benthos UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18389997?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrobiologia&rft.atitle=Periphyton+community+responses+to+elevated+metal+concentrations+in+a+Rocky+Mountain+stream&rft.au=Hill%2C+B+H%3BWillingham%2C+W+T%3BParrish%2C+L+P%3BMcFarland%2C+B+H&rft.aulast=Hill&rft.aufirst=B&rft.date=2000-06-15&rft.volume=428&rft.issue=1-3&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Hydrobiologia&rft.issn=00188158&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Freshwater ER - TY - JOUR T1 - Assessment of Dry Deposition and Foliar Leaching of Mercury and Selected Trace Elements Based on Washed Foliar and Surrogate Surfaces AN - 17679050; 4766252 AB - Throughfall and litterfall are the primary deposition pathways of Hg to forested ecosystems, yet the source of this Hg (soil or atmospheric) remains unclear. Leaf samples were harvested from live trees and used in leaf washing experiments to assess whether the recovered Hg originated from surface deposits (wash-off of dry deposition) or internal sources (foliar leaching). The behavior of Hg was compared to eight other elements also found in leaf wash with known external (Cd, La, Ce, Pb) or internal (Mn, Rb, Sr, Ba) sources. These experiments indicated that wash-off of dry deposition occurred rapidly, while foliar leaching occurred continuously during the entire wash period (up to 12 h). To isolate dry deposition, surrogate Teflon surfaces exposed for a 98 h dry period were washed and compared to washed foliar surfaces. Computed dry deposition velocities for both surfaces were within a factor of 2 for Hg, Cd, La, Ce, and Pb, suggesting that dry deposition was the primary source of these elements from the washed foliage. Deposition velocities varied widely (3-18 times higher from the foliar surfaces) for Mn, Rb, Sr, and Ba, most likely due to the leaching behavior exhibited by these elements. These experiments show that dry deposition of atmospheric Hg is likely the largest source of Hg in throughfall. JF - Environmental Science & Technology AU - Rea, A W AU - Lindberg, SE AU - Keeler, G J AD - U.S. Environmental Protection Agency, MD 56, Research Triangle Park, NC 27711, USA, Rea.Anne@epa.gov Y1 - 2000/06/15/ PY - 2000 DA - 2000 Jun 15 SP - 2418 EP - 2425 VL - 34 IS - 12 SN - 0013-936X, 0013-936X KW - Water Resources Abstracts; Pollution Abstracts KW - Leaching KW - Trees KW - Water Quality KW - Forests KW - Trace Elements KW - Trace elements KW - Mercury KW - Dry deposition KW - P 5000:LAND POLLUTION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17679050?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Assessment+of+Dry+Deposition+and+Foliar+Leaching+of+Mercury+and+Selected+Trace+Elements+Based+on+Washed+Foliar+and+Surrogate+Surfaces&rft.au=Rea%2C+A+W%3BLindberg%2C+SE%3BKeeler%2C+G+J&rft.aulast=Rea&rft.aufirst=A&rft.date=2000-06-15&rft.volume=34&rft.issue=12&rft.spage=2418&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Leaching; Trees; Forests; Mercury; Dry deposition; Trace elements; Water Quality; Trace Elements ER - TY - JOUR T1 - Potential health effects of drinking water disinfection by-products using quantitative structure toxicity relationship. AN - 71222709; 10874158 AB - Disinfection by-products (DBPs) are produced as a result of disinfecting water using various treatment methods. Over the years, chlorine has remained the most popular disinfecting agent due to its ability to kill pathogens. However, in 1974, it was discovered that the superchlorination of drinking water resulted in the production of chloroform and other trihalomethanes. Since then hundreds of additional DBPs have been identified, including haloacetic acids and haloacetonitriles with very little or no toxicological data available, thus necessitating the use of additional methods for hazard estimation. Quantitative Structure Toxicity Relationship (QSTR) is one such method and utilizes a computer-based technology to predict the toxicity of a chemical solely from its molecular attributes. The current research was conducted utilizing the TOPKAT/QSTR software package which is comprised of robust, cross-validated QSTR models for assessing mutagenicity, rodent carcinogenicity (female/male; rat/mouse), developmental toxicity, skin sensitization, lowest-observed-adverse-effect level (LOAEL), fathead minnow LC(50), rat oral LD(50) and Daphia magna EC(50). A total of 252 DBPs were analyzed for the likelihood that they would produce tumors and developmental effects using the carcinogenicity and developmental toxicity submodels of TOPKAT. The model predictions were evaluated to identify generalizations between the functional groups (e.g. alcohols, acids, etc.) and specific toxic endpoints. Developmental toxicity was identified as an endpoint common to the majority of aliphatic mono- and dicarboxylic acids, aliphatic halogenated and non-halogenated ketones, and aliphatic haloacetonitriles. In the case of the carcinogenicity submodels, most aliphatic aldehydes were identified as carcinogens only in the female mouse submodel. The majority of the aliphatic and aromatic dicarboxylic acids were identified as carcinogens in the female rat submodel. All other functional groups examined were largely predicted as non-carcinogens in all the cancer submodels (i.e. male/female rats and mice). The QSTR results should aid in the prioritization for evaluation of toxic endpoints in the absence of in vivo bioassays. JF - Toxicology AU - Moudgal, C J AU - Lipscomb, J C AU - Bruce, R M AD - National Center for Environmental Assessment, U.S. Environmental Protection Agency, Cincinnati, OH 45268, USA. Y1 - 2000/06/08/ PY - 2000 DA - 2000 Jun 08 SP - 109 EP - 131 VL - 147 IS - 2 SN - 0300-483X, 0300-483X KW - Carcinogens KW - 0 KW - Disinfectants KW - Index Medicus KW - Animals KW - Analysis of Variance KW - Reproducibility of Results KW - Algorithms KW - Carcinogens -- toxicity KW - Mice KW - Models, Biological KW - Structure-Activity Relationship KW - Rats KW - Mice, Inbred Strains KW - Rats, Inbred F344 KW - No-Observed-Adverse-Effect Level KW - Carcinogens -- chemistry KW - Female KW - Male KW - Disinfection KW - Water Supply -- analysis KW - Disinfectants -- chemistry KW - Disinfectants -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71222709?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology&rft.atitle=Potential+health+effects+of+drinking+water+disinfection+by-products+using+quantitative+structure+toxicity+relationship.&rft.au=Moudgal%2C+C+J%3BLipscomb%2C+J+C%3BBruce%2C+R+M&rft.aulast=Moudgal&rft.aufirst=C&rft.date=2000-06-08&rft.volume=147&rft.issue=2&rft.spage=109&rft.isbn=&rft.btitle=&rft.title=Toxicology&rft.issn=0300483X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-08-07 N1 - Date created - 2000-08-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Comparison of respiratory responses to Metarhizium anisopliae extract using two different sensitization protocols AN - 17555000; 4737052 AB - Metarhizium anisopliae, an entomopathogenic fungus, is a prototypic microbial pesticide licensed for indoor control of cockroaches, a major source of allergens. We have previously demonstrated allergy and asthma-like responses in BALB/c mice intraperitoneally (IP) sensitized in the presence of adjuvant and intratracheally (IT) challenged with the soluble factors from M. anisopliae crude antigen (MACA). This protocol has been used frequently to establish animal models of allergenicity. However, the sensitization protocol is artificial and not representative of an environmental exposure. Concern has been raised that this protocol might produce allergic responses that would not occur under normal environmental exposure conditions. The objective of this study was to compare responses in mice to MACA by two exposure protocols: (1) exclusive respiratory exposures without adjuvant (representative of environmental exposures) and (2) intraperitoneal sensitization in the presence of adjuvant followed by IT challenge (the traditional approach). The intratracheal protocol consisted of four IT exposures of 10 mu g MACA in 50 mu l HBSS each over a 4-week period. A vehicle control group of mice was exposed IT to HBSS. The intraperitoneal protocol consisted of IP sensitization with 25 mu g MACA in 0.2 ml of 1.3% alhydrogel (aluminum hydroxide) followed 14 days later with an IT challenge (10 mu g MACA/50 mu l HBSS). Airway reactivity responsiveness to methacholine was assessed, serum and bronchoalveolar lavage fluid (BALF) samples were obtained, and the lungs were fixed for histopathology at 1, 3, and 8 days following the last MACA IT challenge. Both groups exhibited immune and pulmonary responses typical of allergic asthma. In general, local responses in the lung, including inflammatory responses (eosinophils, lymphocytes, and macrophages), BALF IgE, and functional responses to methacholine were greater in the IT sensitized group compared to the IP sensitized group, whereas the systemic IgE response was greater in the IP sensitized group. The BALF IL-5 cytokine levels were elevated before and throughout the eosinophil influx. IL-4 was detected in the BALF of IP sensitized, but not IT sensitized mice. Histopathologic changes in the two groups were similar in nature but more severe in the IT mice. The results suggest that the IP sensitization protocol does not induce the level of respiratory responsiveness that results from sensitization by a physiologically relevant route of exposure. Thus total serum IgE levels, which were greater following IP sensitization, may not be the best indicator of allergen potency, at least with respect to respiratory responses. JF - Toxicology AU - Ward, MDW AU - Madison, S L AU - Andrews, D L AU - Sailstad, D M AU - Gavett, SH AU - Selgrade, MJK AD - National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, 86 T.W. Alexander Drive, MD 92, Research Triangle Park, NC 27711, USA, ward.marsha@epa.gov Y1 - 2000/06/08/ PY - 2000 DA - 2000 Jun 08 SP - 133 EP - 145 VL - 147 IS - 2 SN - 0300-483X, 0300-483X KW - extracts KW - mice KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Toxicology Abstracts KW - Fungi KW - Metarhizium anisopliae KW - Hypersensitivity KW - Insecticides KW - Allergens KW - Immunoglobulin E KW - Sensitization KW - Respiratory tract KW - K 03086:Immunology & vaccination KW - X 24171:Microbial UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17555000?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology&rft.atitle=Comparison+of+respiratory+responses+to+Metarhizium+anisopliae+extract+using+two+different+sensitization+protocols&rft.au=Ward%2C+MDW%3BMadison%2C+S+L%3BAndrews%2C+D+L%3BSailstad%2C+D+M%3BGavett%2C+SH%3BSelgrade%2C+MJK&rft.aulast=Ward&rft.aufirst=MDW&rft.date=2000-06-08&rft.volume=147&rft.issue=2&rft.spage=133&rft.isbn=&rft.btitle=&rft.title=Toxicology&rft.issn=0300483X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Metarhizium anisopliae; Respiratory tract; Immunoglobulin E; Insecticides; Fungi; Sensitization; Allergens; Hypersensitivity ER - TY - JOUR T1 - Hearing loss following exposure during development to polychlorinated biphenyls: a cochlear site of action. AN - 85366137; pmid-10831878 AB - Maternal exposure to polyhalogenated hydrocarbons results in early postnatal hypothyroxenemia and a low-frequency hearing loss in adult offspring (Goldey et al., 1995a. Toxicol. Appl. Pharmacol. 135, 67-76; Herr et al., 1996. Fundam. Appl. Toxicol. 33, 120-128). The purpose of the present work was to determine whether the site-of-action of this auditory impairment was within the cochlea. Primiparous Long-Evans rats were given daily oral doses of corn oil (control) or 8 mg/kg of the commercial PCB mixture Aroclor 1254 (A1254) from gestation day (GD) 6 through postnatal day (PND) 21. Auditory thresholds for 1-, 4-, 16-, and 40-kHz tones were assessed using reflex modification audiometry in young adult offspring on postnatal days (PND) 92-110. Approximately 6 weeks after auditory assessments, a subset of animals (n=4 per group) were killed for histological assessment of the cochlea. Surface preparations of the organ of Corti were prepared from one cochlea per animal and modiolar sections were prepared from the opposite cochlea. Consistent with previous findings, auditory thresholds for 1-kHz tones were elevated by approximately 25 dB in the A1254-exposed animals. Thresholds for all higher frequencies were not different compared to controls. Surface preparations of the organ of Corti revealed a mild to moderate loss of outer hair cells in the upper-middle and apical turns. Inner hair cells were not affected. Modiolar sections failed to reveal alterations in any other cochlear structures. There was also no apparent loss of ganglion cells. These data clearly link the loss of low-frequency hearing caused by exposure during development to A1254 to a loss of outer hair cells in the organ of Corti. The mechanism that underlies this developmental ototoxicity remains to be determined. These data provide the first evidence of a structural deficit in the nervous system of adult animals exposed to PCBs during development. JF - Hearing research AU - Crofton, K M AU - Ding, D AU - Padich, R AU - Taylor, M AU - Henderson, D AD - Neurotoxicology Division, MD-74B, National Health and Environmental Effects Research Laboratory, US EPA, Research Triangle Park, NC 27711, USA. crofton.kevin@epa.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 196 EP - 204 VL - 144 IS - 1-2 SN - 0378-5955, 0378-5955 KW - Index Medicus KW - National Library of Medicine KW - Rats KW - Animals KW - Rats, Long-Evans KW - Cell Survival -- drug effects KW - Auditory Threshold -- drug effects KW - Hair Cells, Auditory, Outer -- drug effects KW - Cochlea -- drug effects KW - Male KW - Female KW - Pregnancy KW - Deafness -- chemically induced KW - Environmental Pollutants -- poisoning KW - Polychlorinated Biphenyls -- poisoning KW - Prenatal Exposure Delayed Effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85366137?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hearing+research&rft.atitle=Hearing+loss+following+exposure+during+development+to+polychlorinated+biphenyls%3A+a+cochlear+site+of+action.&rft.au=Crofton%2C+K+M%3BDing%2C+D%3BPadich%2C+R%3BTaylor%2C+M%3BHenderson%2C+D&rft.aulast=Crofton&rft.aufirst=K&rft.date=2000-06-01&rft.volume=144&rft.issue=1-2&rft.spage=196&rft.isbn=&rft.btitle=&rft.title=Hearing+research&rft.issn=03785955&rft_id=info:doi/ LA - English (eng) DB - ComDisDome N1 - Date revised - 2010-04-12 N1 - Last updated - 2010-09-25 ER - TY - JOUR T1 - Ascorbic acid reduction of residual active chlorine in potable water prior to halocarboxylate determination. AN - 72586174; 11256708 AB - In studies on the formation of disinfection byproducts (DBPs), it is necessary to scavenge residual active (oxidizing) chlorine in order to fix the chlorination byproducts (such as haloethanoates) at a point in time. Such research projects often have distinct needs from requirements for regulatory compliance monitoring. Thus, methods designed for compliance monitoring are not always directly applicable, but must be adapted. This research describes an adaptation of EPA Method 552 in which ascorbic acid treatment is shown to be a satisfactory means for reducing residual oxidizing chlorine, i.e., HOCl, ClO-, and Cl2, prior to determining concentrations of halocarboxylates. Ascorbic acid rapidly reduces oxidizing chlorine compounds, and it has the advantage of producing inorganic halides and dehydroascorbic acid as opposed to halogenated organic molecules as byproducts. In deionized water and a sample of chlorinated tap water, systematic biases relative to strict adherence to Method 552 were precise and could be corrected for using similarly treated standards and analyte-fortified (spiked) samples. This was demonstrated for the quantitation of chloroethanoate, bromoethanoate, 2,2-dichloropropanoate (dalapon), trichloroethanoate, bromochloroethanoate, and bromodichlorocthanoate when extracted, as the acids, into tert-butyl methyl ether (MTBE) and esterified with diazomethane prior to gas chromatography with electron capture detection (GC-ECD). Recoveries for chloroethanoate, bromoethanoate, dalapon, dichloroethanoate, trichloroethanoate, bromochloroethanoate, bromodichloroethanoate, dibromoethanoate, and 2-bromopropanoate at concentrations near the lower limit of detection were acceptable. Ascorbic acid reduction appears to be the best option presently available when there is a need to quench residual oxidants fast in a DBP formation study without generating other halospecies but must be implemented cautiously to ensure no untoward interactions in the matrix. JF - Journal of environmental monitoring : JEM AU - Urbansky, E T AU - Freeman, D M AU - Rubio, F J AD - United States Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Water Supply and Water Resources Division, Cincinnati, OH 45268, USA. urbansky.Edward@EPA.gov Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 253 EP - 256 VL - 2 IS - 3 SN - 1464-0325, 1464-0325 KW - Carboxylic Acids KW - 0 KW - Halogens KW - Oxidants KW - Chlorine KW - 4R7X1O2820 KW - Ascorbic Acid KW - PQ6CK8PD0R KW - Index Medicus KW - Oxidation-Reduction KW - Oxidants -- chemistry KW - Halogens -- chemistry KW - Chlorine -- analysis KW - Water Supply KW - Carboxylic Acids -- analysis KW - Ascorbic Acid -- chemistry KW - Chlorine -- chemistry KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72586174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+environmental+monitoring+%3A+JEM&rft.atitle=Ascorbic+acid+reduction+of+residual+active+chlorine+in+potable+water+prior+to+halocarboxylate+determination.&rft.au=Urbansky%2C+E+T%3BFreeman%2C+D+M%3BRubio%2C+F+J&rft.aulast=Urbansky&rft.aufirst=E&rft.date=2000-06-01&rft.volume=2&rft.issue=3&rft.spage=253&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+monitoring+%3A+JEM&rft.issn=14640325&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-04-05 N1 - Date created - 2001-03-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - In vivo and in vitro correlation of pulmonary MAP kinase activation following metallic exposure. AN - 71234743; 10880139 AB - Residual oil fly ash (ROFA) is a particulate pollutant produced in the combustion of fuel oil. Exposure to ROFA is associated with adverse respiratory effects in humans, induces lung inflammation in animals, and induces inflammatory mediator expression in cultured human airway epithelial cells (HAEC). ROFA has a high content of transition metals, including vanadium, a potent tyrosine phosphatase inhibitor that we have previously shown to disregulate phosphotyrosine metabolism and activate mitogen-activated protein kinase (MAPK) signaling cascades in HAEC. In order to study MAPK activation in response to in vivo metal exposure, we used immunohistochemical methods to detect levels of phosphorylated protein tyrosines (P-Tyr) and the MAPKs ERK1/2, JNK, and P38 in lung sections from rats intratracheally exposed to ROFA. After a 1-h exposure to 500 microg ROFA, rat lungs showed no histological changes and no significant increases in immunostaining for either P-Tyr or phospho-(P-) MAPKs compared to saline-instilled controls. At 4 h of exposure, there was mild and variable inflammation in the lung, which was accompanied by an increase in specific immunostaining for P-Tyr and P-MAPKs in airway and alveolar epithelial cells and resident macrophages. By 24 h of exposure, there was a pronounced inflammatory response to ROFA instillation and a marked increase in levels of P-Tyr and P-MAPKs present within the alveolar epithelium and in the inflammatory cells, while the airway epithelium showed a continued increase in the expression of P-ERK1/2. By comparison, HAEC cultures exposed to 100 microg/ml ROFA for 20 min resulted in marked increases in P-Tyr and P-MAPKs, which persisted after 24 h of exposure. P-Tyr levels continued to accumulate for up to 24 h in HAEC exposed to ROFA. These results demonstrate in vivo activation in cell signaling pathways in response to pulmonary exposure to particulate matter, and support the relevance of in vitro studies in the identification of mechanisms of lung injury induced by pollutant inhalation. JF - Inhalation toxicology AU - Silbajoris, R AU - Ghio, A J AU - Samet, J M AU - Jaskot, R AU - Dreher, K L AU - Brighton, L E AD - Human Studies Division, National Health and Environmental Effects Research LAboratory, US Environmental Protection Agency, Research Triangle Park, North Carolina, USA. Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 453 EP - 468 VL - 12 IS - 6 SN - 0895-8378, 0895-8378 KW - Air Pollutants KW - 0 KW - Coal Ash KW - Particulate Matter KW - Phosphotyrosine KW - 21820-51-9 KW - Carbon KW - 7440-44-0 KW - Mitogen-Activated Protein Kinases KW - EC 2.7.11.24 KW - Index Medicus KW - Humans KW - Intubation, Intratracheal KW - Respiratory Mucosa -- drug effects KW - Phosphotyrosine -- metabolism KW - Bronchi -- enzymology KW - Phosphotyrosine -- drug effects KW - Bronchi -- drug effects KW - Bronchi -- pathology KW - Blotting, Western KW - Epithelial Cells -- drug effects KW - Epithelial Cells -- enzymology KW - Cells, Cultured KW - Respiratory Mucosa -- enzymology KW - Enzyme Activation -- drug effects KW - Immunoenzyme Techniques KW - Mitogen-Activated Protein Kinases -- metabolism KW - Lung -- drug effects KW - Lung -- enzymology KW - Lung -- pathology KW - Carbon -- toxicity KW - Carbon -- administration & dosage UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71234743?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Inhalation+toxicology&rft.atitle=In+vivo+and+in+vitro+correlation+of+pulmonary+MAP+kinase+activation+following+metallic+exposure.&rft.au=Silbajoris%2C+R%3BGhio%2C+A+J%3BSamet%2C+J+M%3BJaskot%2C+R%3BDreher%2C+K+L%3BBrighton%2C+L+E&rft.aulast=Silbajoris&rft.aufirst=R&rft.date=2000-06-01&rft.volume=12&rft.issue=6&rft.spage=453&rft.isbn=&rft.btitle=&rft.title=Inhalation+toxicology&rft.issn=08958378&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-26 N1 - Date created - 2000-10-16 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Exposure to air pollution is associated with lung hyperinflation in healthy children and adolescents in Southwest Mexico City: a pilot study. AN - 71234326; 10880143 AB - Air pollution produces adverse health effects. The consequences of lifelong daily exposures to atmospheric pollutants upon the respiratory apparatus of healthy children are of considerable clinical importance. We investigated the association between exposure to a highly polluted urban environment with a complex mixture of air pollutants-ozone and particulate matter the predominant ones-and chest x-ray abnormalities in 59 healthy Mexican children who are lifelong residents of Southwest Metropolitan Mexico City (SWMMC), with a negative history of tobacco exposure and respiratory illnesses. Their clinical results and x-ray findings were compared to those of 19 Mexican control children, residents of a low-pollution area, with a similar negative history of tobacco exposure and respiratory illnesses. Ozone concentrations in SWMMC exceeded the U.S. Environmental Protection Agency (U.S. EPA) National Ambient Air Quality Standard (NAAQS) for O(3): 0.08 ppm as 1-h maximal concentration, not to be exceeded more than 4 times a year, on 71% of days in 1986 and 95% in 1997, with values as high as 0.48 ppm. Ozone maximal peaks are usually recorded between 2 and 5 pm coinciding with children's outdoor physical activities. Children in the control group reported no upper or lower respiratory symptomatology. Every SWMMC child complained of upper and/or lower respiratory symptoms, including epistaxis, nasal dryness and crusting, cough, shortness of breath, and chest discomfort. Children aged 7-13 yr had the most symptomatology, while 5- to 6-year olds and adolescents with the lowest number of statistically significant outdoor exposure hours had less respiratory symptoms. Bilateral symmetric mild lung hyperinflation was significantly associated with exposure to the SWMMC atmosphere (p = .0004). Chronic and sustained inhalation of a complex mixture of air pollutants, including ozone and particulate matter (PM), is associated with lung hyperinflation, suggestive of small airway disease, in a population of clinically healthy children and adolescents. Small airways are a target of air pollutants in SWMMC children, with ozone and PM being most likely responsible, based on experimental animal, controlled-chamber, and epidemiological data available. Our main concern is the potential likelihood for the development of chronic lung disease in this highly exposed population. JF - Inhalation toxicology AU - Calderón-Garcidueñas, L AU - Mora-Tiscareño, A AU - Chung, C J AU - Valencia, G AU - Fordham, L A AU - García, R AU - Osnaya, N AU - Romero, L AU - Acuña, H AU - Villarreal-Calderón, A AU - Devlin, R B AU - Koren, H S AD - Curriculum in Toxicology, University of North Carolina, Chapel Hill, USA. caldeon.lilian@epamail.epa.gov. Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 537 EP - 561 VL - 12 IS - 6 SN - 0895-8378, 0895-8378 KW - Air Pollutants KW - 0 KW - Ozone KW - 66H7ZZK23N KW - Index Medicus KW - United States KW - Ozone -- analysis KW - United States Environmental Protection Agency KW - Urban Health KW - Humans KW - Child KW - Pilot Projects KW - Child, Preschool KW - Radiography, Thoracic KW - Environmental Monitoring KW - Mexico KW - Maximum Allowable Concentration KW - Adolescent KW - Female KW - Male KW - Lung Diseases -- chemically induced KW - Lung Diseases -- diagnostic imaging KW - Inhalation Exposure KW - Lung Diseases -- physiopathology KW - Air Pollutants -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71234326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Inhalation+toxicology&rft.atitle=Exposure+to+air+pollution+is+associated+with+lung+hyperinflation+in+healthy+children+and+adolescents+in+Southwest+Mexico+City%3A+a+pilot+study.&rft.au=Calder%C3%B3n-Garcidue%C3%B1as%2C+L%3BMora-Tiscare%C3%B1o%2C+A%3BChung%2C+C+J%3BValencia%2C+G%3BFordham%2C+L+A%3BGarc%C3%ADa%2C+R%3BOsnaya%2C+N%3BRomero%2C+L%3BAcu%C3%B1a%2C+H%3BVillarreal-Calder%C3%B3n%2C+A%3BDevlin%2C+R+B%3BKoren%2C+H+S&rft.aulast=Calder%C3%B3n-Garcidue%C3%B1as&rft.aufirst=L&rft.date=2000-06-01&rft.volume=12&rft.issue=6&rft.spage=537&rft.isbn=&rft.btitle=&rft.title=Inhalation+toxicology&rft.issn=08958378&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-26 N1 - Date created - 2000-10-16 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Methylmercury effects on ion channels and electrical activity in neurons: future directions. AN - 71221806; 10875446 AB - Methylmercury (CH3Hg+) is a potent neurotoxicant in humans and laboratory animals, and both epidemiological and laboratory data suggest that the developing nervous system is more susceptible to CH3Hg+ neurotoxicity than is the adult nervous system. While it is recognized that the developing nervous system is more susceptible to CH3Hg+ neurotoxicity compared to the adult nervous system, it is presently not clear what level of exposure, if any, is without effect on the developing human nervous system. A better understanding of mechanisms of action of CH3Hg+ for developmental neurotoxicity would be useful in defining risks associated with CH3Hg+ exposure. While alterations in a variety of processes may contribute to the neurotoxicity of CH3Hg+, changes in ion channel function and electrical activity in neuronal cells is a consistent observation following acute exposure in a variety of preparations. Additional research, however, is needed to clarify the relationship between alterations in neuronal electrophysiological function and developmental neurotoxicity of CH3Hg+. This article suggests several issues to be considered in order to address the relationship between in vitro acute effects of CH3Hg+ on ion channels and electrophysiological function in neurons and developmental neurotoxicity. Future studies need: 1) to examine effects on ion channel function and neuronal electrophysiology following subacute and chronic in vitro exposure to CH3Hg+; 2) to utilize model systems which consider developmental changes in neuronal function; 3) to consider direct vs. indirect effects of CH3Hg+; 4) to compare in vitro to ex vivo and in vivo effects; 5) to utilize in vitro dose levels which reflect in vivo exposure, and 6) to consider interactions between CH3Hg+ and other potential neurotoxicants found in environmental mixtures. Ultimately, it may be possible to develop biologically-based dose-response models of CH3Hg+ neurotoxicity which will be useful in assessing the risks of developmental neurotoxicity of this metal. JF - Cellular and molecular biology (Noisy-le-Grand, France) AU - Shafer, T J AD - Neurotoxicology Division Division (MD-74B), National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA. shafer.tim@epamail.epa.gov Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 855 EP - 864 VL - 46 IS - 4 SN - 0145-5680, 0145-5680 KW - Ion Channels KW - 0 KW - Methylmercury Compounds KW - Neurotoxins KW - Index Medicus KW - Animals KW - Humans KW - Electrophysiology KW - Neurotoxins -- toxicity KW - Neurons -- drug effects KW - Ion Channels -- drug effects KW - Neurons -- physiology KW - Methylmercury Compounds -- toxicity KW - Methylmercury Compounds -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71221806?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cellular+and+molecular+biology+%28Noisy-le-Grand%2C+France%29&rft.atitle=Methylmercury+effects+on+ion+channels+and+electrical+activity+in+neurons%3A+future+directions.&rft.au=Shafer%2C+T+J&rft.aulast=Shafer&rft.aufirst=T&rft.date=2000-06-01&rft.volume=46&rft.issue=4&rft.spage=855&rft.isbn=&rft.btitle=&rft.title=Cellular+and+molecular+biology+%28Noisy-le-Grand%2C+France%29&rft.issn=01455680&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-27 N1 - Date created - 2000-09-29 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Brevetoxin derivatives that inhibit toxin activity. AN - 71219380; 10873835 AB - The brevetoxins are marine neurotoxins that interfere with the normal functions of the voltage-gated Na(+) channel. We have identified two brevetoxin derivatives that do not exhibit pharmacological properties typical of the brevetoxins and that function as brevetoxin antagonists. PbTx-3 and benzoyl-PbTx-3 elicited Na(+) channel openings during steady-state depolarizations; however, two PbTx-3 derivatives retained their ability to bind to the receptor, but did not elicit Na(+) channel openings. alpha-Naphthoyl-PbTx-3 acted as a PbTx-3 antagonist but did not affect Na(+) channels that were not exposed to PbTx-3. beta-Naphthoyl-PbTx-3 reduced openings of Na(+) channels that were not exposed to PbTx-3. Some modifications to the brevetoxin molecule do not alter either the binding properties or the activity of these toxins. Larger modifications to the K-ring sidechain do not interfere with binding but have profound effects on their pharmacological properties. This implies a critical function for the K-ring sidechain of the native toxin. JF - Chemistry & biology AU - Purkerson-Parker, S L AU - Fieber, L A AU - Rein, K S AU - Podona, T AU - Baden, D G AD - Neurotoxicology Division MD-74B, University of North Carolina Curriculum in Toxicology, United States Environmental Protection Agency, NC 27711, USA. Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 385 EP - 393 VL - 7 IS - 6 SN - 1074-5521, 1074-5521 KW - Marine Toxins KW - 0 KW - Oxocins KW - Sodium Channel Blockers KW - brevetoxin KW - 98225-48-0 KW - Index Medicus KW - Rats KW - Animals KW - Rats, Sprague-Dawley KW - Male KW - Cell Line KW - Marine Toxins -- pharmacology KW - Marine Toxins -- antagonists & inhibitors KW - Marine Toxins -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71219380?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemistry+%26+biology&rft.atitle=Brevetoxin+derivatives+that+inhibit+toxin+activity.&rft.au=Purkerson-Parker%2C+S+L%3BFieber%2C+L+A%3BRein%2C+K+S%3BPodona%2C+T%3BBaden%2C+D+G&rft.aulast=Purkerson-Parker&rft.aufirst=S&rft.date=2000-06-01&rft.volume=7&rft.issue=6&rft.spage=385&rft.isbn=&rft.btitle=&rft.title=Chemistry+%26+biology&rft.issn=10745521&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-08-02 N1 - Date created - 2000-08-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Acute hazards to young children from residential pesticide exposures. AN - 71193936; 10846518 AB - This study assessed acute hazards to young children from pesticides toxic enough to require child-resistant packaging. The names of pesticides meeting acute toxicity criteria were ascertained from the Environmental Protection Agency. Poison Control Center reports identified children younger than 6 years who were exposed to these pesticides. Toxicity category, medical outcome, sex, and age were examined. A higher proportion of children with exposure to the more toxic products had serious medical outcomes. Children 2 years and younger were the predominant age group exposed. Protective measures--substituting less lethal pesticides, reducing the concentration of the active ingredients, and improving packaging and storage--are recommended. JF - American journal of public health AU - Spann, M F AU - Blondell, J M AU - Hunting, K L AD - US Environmental Protection Agency, Washington, DC 20460, USA. spann.monica@epa.gov Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 971 EP - 973 VL - 90 IS - 6 SN - 0090-0036, 0090-0036 KW - Pesticides KW - 0 KW - Abridged Index Medicus KW - Index Medicus KW - Infant KW - Poison Control Centers -- statistics & numerical data KW - United States Environmental Protection Agency KW - Poisoning -- physiopathology KW - Humans KW - Treatment Outcome KW - Poisoning -- epidemiology KW - Child KW - United States -- epidemiology KW - Male KW - Female KW - Child, Preschool KW - Age Distribution KW - Pesticides -- classification KW - Environmental Exposure -- adverse effects KW - Pesticides -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71193936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+journal+of+public+health&rft.atitle=Acute+hazards+to+young+children+from+residential+pesticide+exposures.&rft.au=Spann%2C+M+F%3BBlondell%2C+J+M%3BHunting%2C+K+L&rft.aulast=Spann&rft.aufirst=M&rft.date=2000-06-01&rft.volume=90&rft.issue=6&rft.spage=971&rft.isbn=&rft.btitle=&rft.title=American+journal+of+public+health&rft.issn=00900036&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-23 N1 - Date created - 2000-06-23 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Med Toxicol Adverse Drug Exp. 1987 Nov-Dec;2(6):389-97 [3431425] Obstet Gynecol. 1990 Apr;75(4 Suppl):77S-80S; discussion 81S-83S [2314797] Cancer. 1992 Apr 1;69(7 Suppl):1968-78 [1544102] Am J Emerg Med. 1994 Sep;12(5):546-84 [8060411] Am J Emerg Med. 1995 Sep;13(5):551-97 [7662064] Am J Obstet Gynecol. 1995 Sep;173(3 Pt 2):982-9 [7573295] Health Care Women Int. 1997 May-Jun;18(3):233-50 [9256671] Int J Fertil Menopausal Stud. 1996 Jan-Feb;41(1):11-5 [8673151] Am J Emerg Med. 1996 Sep;14(5):487-537 [8765118] CA Cancer J Clin. 1996 Nov-Dec;46(6):343-63 [8917020] JAMA. 1997 Apr 9;277(14):1140-7 [9087469] Occup Med. 1997 Apr-Jun;12(2):209-20 [9220482] J Intern Med. 1995 Nov;238(5):389-99 [7595178] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Identifying critical windows of exposure for children's health. AN - 71182836; 10852844 AB - Several authors have considered the importance of exposure timing and how this affects the outcomes observed, but no one has systematically compiled preconceptional, prenatal, and postnatal developmental exposures and subsequent outcomes. Efforts were undertaken to examine the information available and to evaluate implications for risk assessment for several areas: a) respiratory and immune systems, b) reproductive system, c) nervous system, d) cardiovascular system, endocrine system, and general growth, and e) cancer. Major conclusions from a workshop on "Critical Windows of Exposure for Children's Health" included a) broad windows of sensitivity can be identified for many systems but detailed information is limited; b) cross-species comparisons of dose to target tissue and better data on the exposure-dose-outcome continuum are needed; c) increased interaction among scientific disciplines can further understanding by using laboratory animal results in designing epidemiological studies and human data to suggest specific laboratory studies on mechanisms and agent-target interactions; and d) thus far, only limited attention has been given to peripubertal/adolescent exposures, adult consequences of developmental exposures, and genome-environment interactions. More specific information on developmental windows will improve risk assessment by identifying the most sensitive window(s) for evaluation of dose-response relationships and exposure, evaluation of biological plausibility of research findings in humans, and comparison of data across species. In public health and risk management, information on critical windows may help identify especially susceptible subgroups for specific interventions. JF - Environmental health perspectives AU - Selevan, S G AU - Kimmel, C A AU - Mendola, P AD - National Center for Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, Washington, DC, USA. selevan.sherry@epa.gov Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 451 EP - 455 VL - 108 Suppl 3 SN - 0091-6765, 0091-6765 KW - Teratogens KW - 0 KW - Index Medicus KW - Infant KW - Humans KW - Adult KW - Infant, Newborn KW - Teratogens -- toxicity KW - Child KW - Adolescent KW - Time Factors KW - Female KW - Risk Assessment KW - Pregnancy KW - Embryonic and Fetal Development -- drug effects KW - Child, Preschool KW - Environmental Health KW - Child Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71182836?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+health+perspectives&rft.atitle=Identifying+critical+windows+of+exposure+for+children%27s+health.&rft.au=Selevan%2C+S+G%3BKimmel%2C+C+A%3BMendola%2C+P&rft.aulast=Selevan&rft.aufirst=S&rft.date=2000-06-01&rft.volume=108+Suppl+3&rft.issue=&rft.spage=451&rft.isbn=&rft.btitle=&rft.title=Environmental+health+perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-23 N1 - Date created - 2000-10-23 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Environ Health Perspect. 2000 Jun;108 Suppl 3:457-62 [10852845] Teratology. 1999 Nov;60(5):306-21 [10525208] Environ Health Perspect. 2000 Jun;108 Suppl 3:475-82 [10852847] Environ Health Perspect. 2000 Jun;108 Suppl 3:483-90 [10852848] Environ Health Perspect. 2000 Jun;108 Suppl 3:491-503 [10852849] Environ Health Perspect. 2000 Jun;108 Suppl 3:505-9 [10852850] Environ Health Perspect. 2000 Jun;108 Suppl 3:511-33 [10852851] Environ Health Perspect. 2000 Jun;108 Suppl 3:535-44 [10852852] Environ Health Perspect. 2000 Jun;108 Suppl 3:545-53 [10852853] Environ Health Perspect. 2000 Jun;108 Suppl 3:555-61 [10852854] Environ Health Perspect. 2000 Jun;108 Suppl 3:563-8 [10852855] Environ Health Perspect. 2000 Jun;108 Suppl 3:569-71 [10852856] Environ Health Perspect. 2000 Jun;108 Suppl 3:573-94 [10852857] Environ Health Perspect. 2000 Jun;108 Suppl 3:595-7 [10852858] Teratology. 1977 Oct;16(2):235-46 [73229] J Occup Med. 1987 May;29(5):451-4 [3598737] N Engl J Med. 1990 Jan 11;322(2):83-8 [2294437] BMJ. 1993 Dec 11;307(6918):1519-24 [8274920] Cancer Epidemiol Biomarkers Prev. 1994 Sep;3(6):457-60 [8000294] Environ Health Perspect. 1995 Sep;103 Suppl 6:41-4 [8549487] Pediatrics. 1996 Apr;97(4):547-53 [8632944] J Natl Cancer Inst. 1997 Feb 5;89(3):238-44 [9017004] Paediatr Perinat Epidemiol. 1997 Jan;11(1):2-20 [9018723] Paediatr Perinat Epidemiol. 1997 Apr;11(2):140-51 [9131707] Ann Allergy Asthma Immunol. 1997 Jul;79(1):80-4 [9236506] Pediatrics. 1997 Nov;100(5):856-62 [9346987] Environ Health Perspect. 1997 Oct;105(10):1068-77 [9349828] Biol Trace Elem Res. 1998 Winter;66(1-3):373-94 [10050931] Environ Health Perspect. 2000 Jun;108 Suppl 3:463-73 [10852846] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Critical periods of vulnerability for the developing nervous system: evidence from humans and animal models. AN - 71182570; 10852851 AB - Vulnerable periods during the development of the nervous system are sensitive to environmental insults because they are dependent on the temporal and regional emergence of critical developmental processes (i.e., proliferation, migration, differentiation, synaptogenesis, myelination, and apoptosis). Evidence from numerous sources demonstrates that neural development extends from the embryonic period through adolescence. In general, the sequence of events is comparable among species, although the time scales are considerably different. Developmental exposure of animals or humans to numerous agents (e.g., X-ray irradiation, methylazoxymethanol, ethanol, lead, methyl mercury, or chlorpyrifos) demonstrates that interference with one or more of these developmental processes can lead to developmental neurotoxicity. Different behavioral domains (e.g., sensory, motor, and various cognitive functions) are subserved by different brain areas. Although there are important differences between the rodent and human brain, analogous structures can be identified. Moreover, the ontogeny of specific behaviors can be used to draw inferences regarding the maturation of specific brain structures or neural circuits in rodents and primates, including humans. Furthermore, various clinical disorders in humans (e.g., schizophrenia, dyslexia, epilepsy, and autism) may also be the result of interference with normal ontogeny of developmental processes in the nervous system. Of critical concern is the possibility that developmental exposure to neurotoxicants may result in an acceleration of age-related decline in function. This concern is compounded by the fact that developmental neurotoxicity that results in small effects can have a profound societal impact when amortized across the entire population and across the life span of humans. JF - Environmental health perspectives AU - Rice, D AU - Barone, S AD - National Center for Environmental Assessment, U.S. Environmental Protection Agency, Washington, D.C., USA. Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 511 EP - 533 VL - 108 Suppl 3 SN - 0091-6765, 0091-6765 KW - Neurotoxins KW - 0 KW - Xenobiotics KW - Index Medicus KW - Cell Movement KW - Animals KW - Humans KW - Infant, Newborn KW - Xenobiotics -- adverse effects KW - Aged KW - Mice KW - Child KW - Primates KW - Pregnancy KW - Child, Preschool KW - Rats KW - Aging -- physiology KW - Infant KW - Embryonic and Fetal Development KW - Adult KW - Middle Aged KW - Neuronal Plasticity KW - Cell Differentiation -- drug effects KW - Time Factors KW - Female KW - Apoptosis KW - Nervous System -- drug effects KW - Nervous System -- embryology KW - Nervous System -- growth & development KW - Neurotoxins -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71182570?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+health+perspectives&rft.atitle=Critical+periods+of+vulnerability+for+the+developing+nervous+system%3A+evidence+from+humans+and+animal+models.&rft.au=Rice%2C+D%3BBarone%2C+S&rft.aulast=Rice&rft.aufirst=D&rft.date=2000-06-01&rft.volume=108+Suppl+3&rft.issue=&rft.spage=511&rft.isbn=&rft.btitle=&rft.title=Environmental+health+perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-23 N1 - Date created - 2000-10-23 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Development. 1998 Mar;125(6):1123-36 [9463359] Toxicol Appl Pharmacol. 1998 Mar;149(1):107-19 [9512733] Am J Public Health. 1998 Mar;88(3):481-6 [9518990] Am J Psychiatry. 1998 Apr;155(4):552-4 [9546004] Rev Neurosci. 1997 Jul-Dec;8(3-4):223-65 [9548234] Alcohol Clin Exp Res. 1998 Apr;22(2):304-12 [9581633] J Comp Neurol. 1998 Jun 22;396(1):39-50 [9623886] J Neurophysiol. 1998 Jun;79(6):2986-98 [9636102] Neurotoxicol Teratol. 1998 May-Jun;20(3):275-83 [9638685] Neurotoxicol Teratol. 1998 May-Jun;20(3):293-306 [9638687] Can J Public Health. 1998 May-Jun;89 Suppl 1:S31-6, S34-40 [9654790] Microsc Res Tech. 1998 Jun 1;41(5):441-53 [9672426] Neurotoxicol Teratol. 1998 Jul-Aug;20(4):391-400 [9697965] J Neurosci. 1998 Aug 15;18(16):6568-82 [9698344] Arch Gen Psychiatry. 1998 Aug;55(8):721-7 [9707383] Brain Res Dev Brain Res. 1998 Jul 1;109(1):13-31 [9706388] Brain Res Dev Brain Res. 1998 Jul 1;109(1):33-49 [9706389] Toxicol Appl Pharmacol. 1998 Jul;151(1):182-91 [9705902] J Neurobiol. 1998 Aug;36(2):287-306 [9712310] J Stud Alcohol. 1998 Sep;59(5):533-43 [9718105] Drug Alcohol Depend. 1998 Jun-Jul;51(1-2):109-25 [9716934] Science. 1999 Mar 19;283(5409):1908-11 [10082463] Neurosci Behav Physiol. 1999 Jan-Feb;29(1):11-21 [10088145] Environ Res. 1999 Feb;80(2 Pt 2):S113-S121 [10092425] Brain Res Mol Brain Res. 1999 Apr 6;67(1):124-36 [10101239] Biol Psychiatry. 1999 Mar 15;45(6):660-7 [10187995] Neurotoxicol Teratol. 1999 Mar-Apr;21(2):109-18 [10192271] Am J Occup Ther. 1999 Mar-Apr;53(2):221-6 [10200846] Am J Med Genet. 1999 May 21;84(2):151-7 [10323741] Am J Psychiatry. 1999 Jun;156(6):857-62 [10360123] Neurotoxicol Teratol. 1999 May-Jun;21(3):223-30 [10386825] Neurotoxicol Teratol. 1999 May-Jun;21(3):285-91 [10386832] Neurotoxicology. 1999 Apr-Jun;20(2-3):197-201 [10385883] Environ Health Perspect. 1999 Feb;107 Suppl 1:65-9 [10229708] Neurotoxicol Teratol. 1999 Jul-Aug;21(4):343-8 [10440477] Neurotoxicol Teratol. 1999 Jul-Aug;21(4):415-25 [10440485] Neurotoxicology. 1999 Aug;20(4):639-46 [10499362] Child Care Health Dev. 1991 Jan-Feb;17(1):9-25 [2022009] Brain Res. 1991 Mar 1;542(2):233-40 [1851454] Trends Neurosci. 1991 Jan;14(1):31-7 [1709531] Glia. 1991;4(2):138-48 [1709615] Prog Brain Res. 1990;85:31-62 [2094901] Ann N Y Acad Sci. 1991;627:181-96 [1883137] Arch Gen Psychiatry. 1991 Jun;48(6):578 [1898225] Brain. 1991 Oct;114 ( Pt 5):2037-49 [1933232] J Clin Psychol. 1991 Jul;47(4):558-62 [1939701] Proc Natl Acad Sci U S A. 1991 Nov 15;88(22):10037-41 [1658793] Proc Natl Acad Sci U S A. 1991 Nov 15;88(22):10218-21 [1658799] Neurosci Lett. 1991 Oct 14;131(2):228-32 [1662344] Brain Res. 1991 Nov 1;563(1-2):114-22 [1786524] Exp Brain Res. 1992;88(1):78-90 [1541364] Neurotoxicology. 1991 Winter;12(4):761-76 [1795900] Brain Res. 1991 Oct 18;562(1):98-104 [1799876] Behav Neurosci. 1992 Feb;106(1):15-29 [1554428] Neuropediatrics. 1992 Feb;23(1):46-8 [1565218] Curr Opin Neurobiol. 1991 Aug;1(2):236-47 [1821187] Brain Res Brain Res Rev. 1992 Jan-Apr;17(1):61-74 [1638276] N Engl J Med. 1992 Aug 27;327(9):604-12 [1640954] Cereb Cortex. 1991 Nov-Dec;1(6):510-23 [1822755] Pediatrics. 1993 Dec;92(6):815-22 [8233743] Environ Res. 1993 Nov;63(2):241-51 [8243418] Development. 1993 Aug;118(4):1063-75 [7903632] Hippocampus. 1993;3 Spec No:191-201 [8287097] J Neurosci. 1994 Mar;14(3 Pt 2):1688-700 [8126563] Ann Ist Super Sanita. 1993;29(1):179-83 [8129266] Dev Med Child Neurol. 1994 Apr;36(4):351-6 [8157157] Ann N Y Acad Sci. 1990;608:457-77; discussion 477-84 [2127516] Neurotoxicology. 1999 Oct;20(5):767-84 [10591513] Nature. 2000 Mar 9;404(6774):190-3 [10724172] Neurotoxicology. 2000 Feb-Apr;21(1-2):15-36 [10794382] J Neurophysiol. 1965 Nov;28(6):1029-40 [5883730] Brain Res. 1967 Dec;6(4):716-27 [4169903] Z Anat Entwicklungsgesch. 1971;134(2):117-45 [4932608] J Comp Neurol. 1972 May;145(1):61-83 [4624784] Int J Neurosci. 1971 Sep;2(3):113-27 [5161305] Life Sci II. 1973 Jan 22;12(2):65-72 [4707784] Exp Neurol. 1973 Aug;40(2):491-504 [4730268] Lancet. 1973 Nov 3;302(7836):999-1001 [4127281] Physiol Rev. 1974 Apr;54(2):245-71 [4274277] Dev Psychobiol. 1972;5(1):35-41 [4671411] Anim Behav. 1975 Nov;23(4):896-920 [1200422] J Neurobiol. 1976 Jan;7(1):75-85 [1249575] J Neurosci Res. 1975;1(2):109-19 [1223322] Arch Toxicol. 1977 Aug 9;37(4):247-63 [578703] J Neuropathol Exp Neurol. 1978 Nov-Dec;37(6):719-33 [739273] Brain Res. 1997 Dec 19;778(2):354-66 [9459553] J Neurosci. 1998 Feb 15;18(4):1240-9 [9454834] Dev Med Child Neurol. 1979 Jun;21(3):299-310 [467814] Ann Neurol. 1979 Aug;6(2):94-100 [496415] Proc R Soc Lond B Biol Sci. 1979 Nov 30;206(1162):133-8 [42067] Dev Med Child Neurol. 1979 Aug;21(4):492-503 [520697] Toxicol Appl Pharmacol. 1979 Dec;51(3):503-13 [120039] J Comp Neurol. 1980 Mar 1;190(1):115-34 [7381049] Behav Brain Res. 1981 May;2(3):291-9 [6784738] Brain Res. 1981 Oct;254(3):425-31 [6169413] Neuropharmacology. 1981 Dec;20(12B):1243-9 [7033814] Brain Res. 1982 Jun;257(2):151-75 [7049327] Exp Neurol. 1982 Feb;75(2):275-88 [7106213] Neuroscience. 1998 Nov;87(1):49-53 [9722140] Science. 1998 Aug 28;281(5381):1303-4 [9735049] Toxicol Sci. 1998 Aug;44(2):191-6 [9742657] Neurotoxicology. 1998 Aug-Oct;19(4-5):645-50 [9745924] Ann Neurol. 1998 Sep;44(3 Suppl 1):S126-33 [9749584] Neurosci Lett. 1998 Aug 7;252(1):25-8 [9756350] Neurobiol Learn Mem. 1998 Jul-Sep;70(1-2):177-88 [9753595] Prog Neurobiol. 1998 Oct;56(2):173-89 [9760700] Prog Neurobiol. 1998 Oct;56(2):191-210 [9760701] Ann Pharmacother. 1998 Sep;32(9):947-61 [9762383] Perspect Dev Neurobiol. 1998;5(2-3):305-22 [9777645] Teratology. 1998 Aug;58(2):62-8 [9787407] Mol Biol Cell. 1998 Nov;9(11):3195-209 [9802906] Science. 1998 Nov 6;282(5391):1117-21 [9804549] Science. 1998 Oct 23;282(5389):633-4 [9841414] Development. 1998 Dec;125(23):4739-48 [9806922] Proc Natl Acad Sci U S A. 1998 Nov 10;95(23):13935-40 [9811904] Neurotoxicology. 1998 Dec;19(6):893-902 [9863777] J Pediatr. 1999 Jan;134(1):33-41 [9880446] BMJ. 1999 Feb 13;318(7181):421-6 [9974454] Toxicol Sci. 1998 Dec;46(2):211-22 [10048124] Science. 1999 Mar 12;283(5408):1657-61 [10073923] Arch Gen Psychiatry. 1999 Mar;56(3):215-9 [10078497] Arch Gen Psychiatry. 1999 Mar;56(3):223-4 [10078498] Child Psychiatry Hum Dev. 1999 Spring;29(3):189-208 [10080962] Behav Neurosci. 1985 Feb;99(1):22-34 [4041230] Neuroradiology. 1997 Dec;39(12):841-6 [9457706] Bibl Anat. 1986;(28):53-78 [3707512] Toxicol Appl Pharmacol. 1986 Jun 30;84(2):315-24 [3715878] Child Dev. 1986 Aug;57(4):1076-83 [3757602] Exp Neurol. 1986 Oct;94(1):203-12 [3758280] Neurotoxicology. 1986 Summer;7(2):103-20 [3537850] Neurotoxicology. 1986 Summer;7(2):591-600 [3537862] Arch Toxicol. 1987 Feb;59(5):341-5 [2437882] Sci Am. 1987 Jun;256(6):80-9 [3589645] Brain Res. 1987 May 26;412(1):68-72 [3607463] Child Dev. 1987 Jun;58(3):601-22 [3608641] Fundam Appl Toxicol. 1987 Jul;9(1):131-9 [3622957] Pediatrics. 1987 Oct;80(4):502-11 [3658568] J Pharmacol Exp Ther. 1988 Jan;244(1):368-78 [3275774] Lancet. 1988 Jun 11;1(8598):1319-22 [2897566] J Comp Neurol. 1988 Jun 15;272(3):424-36 [3417894] Toxicol Lett. 1988 Oct;43(1-3):361-79 [3051526] Am Psychol. 1988 Oct;43(10):786-99 [3195797] Neurotoxicol Teratol. 1988 May-Jun;10(3):207-14 [3211098] Int J Dev Neurosci. 1988;6(2):149-54 [3213575] J Child Psychol Psychiatry. 1988 Jul;29(4):433-45 [3265136] Brain Res Bull. 1988 Jul;21(1):47-54 [3219600] Glia. 1988;1(5):301-7 [2976393] Exp Brain Res. 1989;74(1):24-40 [2924839] Child Dev. 1989 Feb;60(1):119-27 [2702861] Brain Res. 1989 May 8;486(2):297-300 [2543480] Trends Neurosci. 1999 Feb;22(2):74-80 [10092047] Fundam Appl Toxicol. 1989 Jul;13(1):118-36 [2767352] Trends Neurosci. 1989 Jul;12(7):265-70 [2475939] Dev Psychobiol. 1989 Sep;22(6):585-99 [2792570] Brain Res Dev Brain Res. 1989 Nov 1;50(1):11-32 [2582602] Int J Dev Neurosci. 1989;7(6):581-9 [2603756] Behav Neurosci. 1989 Dec;103(6):1287-95 [2610921] Neurotoxicology. 1989 Fall;10(3):393-406 [2626214] Toxicol Appl Pharmacol. 1990 Apr;103(2):364-73 [2330594] Neurotoxicology. 1989 Winter;10(4):645-50 [2562538] J Neurosci. 1990 Jul;10(7):2156-75 [2376772] EMBO J. 1990 Nov;9(11):3545-50 [2170117] Pediatrics. 1992 Sep;90(3):342-9 [1518686] Neurochem Res. 1992 Sep;17(9):877-85 [1407275] Science. 1992 Oct 9;258(5080):299-302 [1411527] Am J Public Health. 1992 Oct;82(10):1356-60 [1415859] Cereb Cortex. 1992 Sep-Oct;2(5):401-16 [1330122] Neurotoxicology. 1992 Summer;13(2):443-52 [1436760] Neurotoxicology. 1992 Summer;13(2):463-74 [1331920] Child Dev. 1992 Oct;63(5):1126-41 [1446544] Neuron. 1992 Dec;9(6):1081-8 [1463608] Int J Epidemiol. 1992 Dec;21(6):1097-105 [1483814] Int J Epidemiol. 1992 Dec;21(6):1106-13 [1483815] J Pharmacol Exp Ther. 1993 Jan;264(1):448-56 [7678650] Neuroscience. 1993 Feb;52(3):575-85 [8450959] Neuroreport. 1993 Jan;4(1):77-80 [8453042] Neurosci Behav Physiol. 1993 Jan-Feb;23(1):94-6 [8464549] Neurosci Lett. 1993 Jan 4;149(1):47-50 [8469378] Alcohol Clin Exp Res. 1993 Apr;17(2):304-14 [8488973] Brain Res Bull. 1993;31(3-4):319-28 [8490731] Brain Res Mol Brain Res. 1993 May;18(3):201-8 [7684481] Clin Invest Med. 1993 Apr;16(2):95-102 [8513618] J Neurosci. 1993 Jul;13(7):2801-20 [8331373] Exp Neurol. 1993 Jun;121(2):200-14 [8339771] Neurotoxicology. 1993 Spring;14(1):83-144 [8361683] J Neurosci. 1993 Sep;13(9):3818-26 [8366347] Exp Neurol. 1993 Aug;122(2):244-52 [8405262] J Abnorm Psychol. 1994 Nov;103(4):832-5 [7822588] Science. 1993 Oct 29;262(5134):695-700 [8235590] Curr Opin Neurobiol. 1994 Oct;4(5):680-6 [7849523] J Neurobiol. 1994 Nov;25(11):1362-72 [7852991] Neurotoxicology. 1994 Fall;15(3):569-78 [7854590] Neurotoxicology. 1994 Fall;15(3):695-9 [7854608] Pharmacol Toxicol. 1994 Nov;75(5):261-4 [7870696] Neurochem Res. 1994 Dec;19(12):1495-502 [7877719] Brain Res Dev Brain Res. 1994 Dec 16;83(2):181-9 [7697878] Anat Embryol (Berl). 1995 Feb;191(2):89-100 [7726396] J Neurosci. 1995 May;15(5 Pt 2):3796-807 [7751947] Behav Brain Res. 1995 Jan 23;66(1-2):7-12 [7755902] Neuron. 1995 Jun;14(6):1101-4 [7605626] Gene. 1995 Jul 4;159(2):209-14 [7622051] Fundam Appl Toxicol. 1995 Jun;26(1):117-26 [7657055] J Neurosci. 1995 Sep;15(9):6058-68 [7666189] Toxicol Appl Pharmacol. 1995 Sep;134(1):161-9 [7676451] Toxicol Appl Pharmacol. 1995 Sep;134(1):53-62 [7545834] Arch Gen Psychiatry. 1995 Oct;52(10):805-18; discussion 819-20 [7575100] Science. 1995 Oct 13;270(5234):305-7 [7569982] Neurosci Biobehav Rev. 1995 Fall;19(3):413-25 [7566743] Prog Brain Res. 1995;105:79-85 [7568899] J Abnorm Psychol. 1995 Nov;104(4):614-24 [8530764] J Neurosci. 1995 Nov;15(11):7301-14 [7472484] Toxicol Appl Pharmacol. 1995 Nov;135(1):77-88 [7482542] Am J Psychiatry. 1995 Dec;152(12):1714-20 [8526235] Am J Psychiatry. 1995 Dec;152(12):1721-3 [8526236] Exp Neurol. 1979 Jun;64(3):482-92 [467547] Neurobiol Aging. 1995 Sep-Oct;16(5):723-35 [8532105] Eur Child Adolesc Psychiatry. 1995 Jul;4(3):187-96 [8846207] Nature. 1995 Dec 21-28;378(6559):776-9 [8524410] Alcohol Clin Exp Res. 1995 Oct;19(5):1198-202 [8561290] Alcohol Clin Exp Res. 1995 Oct;19(5):1226-33 [8561295] J Paediatr Child Health. 1995 Oct;31(5):403-7 [8554859] Fundam Appl Toxicol. 1995 Nov;28(1):100-10 [8566474] JAMA. 1996 Feb 7;275(5):363-9 [8569015] Environ Res. 1995 Jul;70(1):1-6 [8603652] Development. 1996 Apr;122(4):1165-74 [8620843] Pediatrics. 1996 May;97(5):700-6 [8628610] Nature. 1982 Oct 14;299(5884):583-91 [6811951] Exp Neurol. 1983 Feb;79(2):434-51 [6822274] J Toxicol Environ Health. 1982 Oct-Nov;10(4-5):639-51 [7161819] Neurotoxicology. 1983 Spring;4(1):79-94 [6348600] Science. 1983 Sep 16;221(4616):1179-80 [6612331] Child Dev. 1983 Oct;54(5):1176-88 [6194943] Child Dev. 1983 Oct;54(5):1189-98 [6354626] Acta Paediatr Scand. 1983 Sep;72(5):747-53 [6637474] Appl Res Ment Retard. 1983;4(2):139-52 [6639008] Toxicol Appl Pharmacol. 1983 Dec;71(3):342-52 [6658785] Brain Res. 1984 Jan;314(1):1-11 [6697246] J Dev Behav Pediatr. 1984 Feb;5(1):1-5 [6699178] Acta Neuropathol. 1984;63(1):57-65 [6730913] Brain Res. 1982 Mar 4;235(1):105-13 [7188316] Toxicol Appl Pharmacol. 1984 Sep 15;75(2):337-45 [6474465] Behav Neurosci. 1984 Oct;98(5):770-8 [6541498] Child Dev. 1984 Aug;55(4):1448-55 [6207995] Life Sci. 1984 Nov 12;35(20):2057-64 [6092812] Obstet Gynecol. 1984 Nov;64(5):601-7 [6493652] Neurobehav Toxicol Teratol. 1984 Sep-Oct;6(5):379-85 [6514102] Exp Neurol. 1985 Feb;87(2):185-97 [3967705] Neurotoxicology. 1984 Fall;5(3):125-48 [6542975] Toxicol Appl Pharmacol. 1985 Mar 15;77(3):458-64 [3975913] Arch Neurol. 1985 May;42(5):428-59 [3994562] Ann Neurol. 1985 Aug;18(2):222-33 [4037763] Neuroreport. 1996 Nov 4;7(15-17):2553-7 [8981422] Science. 1986 Apr 11;232(4747):232-5 [3952506] Neurotoxicology. 1996 Fall-Winter;17(3-4):583-96 [9086479] Br J Psychiatry. 1997 Feb;170:128-33 [9093500] Reprod Toxicol. 1997 Mar-Jun;11(2-3):417-22 [9100317] Psychiatry Res. 1997 Feb 7;68(2-3):99-109 [9104757] Development. 1997 Apr;124(8):1623-30 [9108378] Neuron. 1997 Apr;18(4):563-77 [9136766] AJNR Am J Neuroradiol. 1997 May;18(5):819-28 [9159358] Am J Psychiatry. 1997 Jun;154(6):840-5 [9167513] Pharmacogenetics. 1997 Apr;7(2):137-44 [9170151] J Biochem Toxicol. 1996;11(6):279-87 [9265078] J Neurosci Res. 1997 Jun 1;48(5):439-48 [9185667] Arch Environ Health. 1997 Jul-Aug;52(4):317-21 [9210734] Brain Res Bull. 1997;43(2):179-89 [9222531] Neuropathol Appl Neurobiol. 1997 Jun;23(3):203-11 [9223129] Brain Res. 1997 Jun 20;760(1-2):68-73 [9237519] Arch Gen Psychiatry. 1997 Jul;54(7):670-6 [9236551] Alcohol Clin Exp Res. 1997 Aug;21(5):882-93 [9267539] J Am Acad Child Adolesc Psychiatry. 1997 Sep;36(9):1187-94 [9291719] J Neurosci Res. 1997 Sep 1;49(5):645-53 [9302086] J Neural Transplant Plast. 1997 Mar-Jun;6(2):63-71 [9306238] Biol Cybern. 1997 Aug;77(2):79-87 [9323857] Schizophr Bull. 1997;23(3):437-58 [9327508] Prog Neurobiol. 1997 Sep;53(1):27-43 [9330422] Arch Gen Psychiatry. 1997 Oct;54(10):897-903 [9337768] Neurotoxicology. 1997;18(3):645-64 [9339814] Prog Neurobiol. 1989;32(6):447-70 [2664880] Alcohol Clin Exp Res. 1996 Feb;20(1):193-5 [8651453] Neuroreport. 1995 Nov 27;6(17):2269-72 [8747134] Neuroreport. 1995 Dec 15;6(18):2521-6 [8741754] Can J Physiol Pharmacol. 1995 Sep;73(9):1364-71 [8748986] J Neurosci. 1996 Mar 1;16(5):1936-47 [8774460] Am J Psychiatry. 1996 Sep;153(9):1138-42 [8780415] Neurotoxicology. 1996 Spring;17(1):157-67 [8784826] Behav Brain Res. 1996 Jun;78(1):57-65 [8793038] Arch Toxicol. 1996;70(3-4):174-81 [8825674] Brain Res. 1996 Jul 8;726(1-2):11-22 [8836540] J Pharmacol Exp Ther. 1996 Oct;279(1):435-42 [8859023] Environ Health Perspect. 1996 Apr;104 Suppl 2:337-51 [9182041] Behav Neurosci. 1996 Aug;110(4):673-84 [8864260] Neurotoxicol Teratol. 1996 Jul-Aug;18(4):413-9 [8866532] Prog Neurobiol. 1996 Jun;49(3):185-214 [8878303] Can J Psychiatry. 1996 Sep;41(7):446-56 [8884034] Neurotoxicol Teratol. 1996 Sep-Oct;18(5):539-46 [8888018] J Neurochem. 1996 Dec;67(6):2425-33 [8931475] Philos Trans R Soc Lond B Biol Sci. 1996 Oct 29;351(1346):1463-70; discussion 1470-1 [8941958] Philos Trans R Soc Lond B Biol Sci. 1996 Oct 29;351(1346):1483-93; discussion 1494 [8941960] Neurotoxicol Teratol. 1996 Nov-Dec;18(6):635-43 [8947940] Br Med Bull. 1996 Jul;52(3):587-96 [8949259] Crit Rev Neurobiol. 1996;10(3-4):317-56 [8978985] Dev Med Child Neurol. 1997 Feb;39(2):125-32 [9062428] Neurotoxicology. 1997;18(3):719-26 [9339819] Trends Neurosci. 1997 Nov;20(11):523-9 [9364667] J Learn Disabil. 1997 Nov-Dec;30(6):685-93 [9364906] J Neurochem. 1997 Dec;69(6):2484-93 [9375681] Neurotoxicol Teratol. 1997 Nov-Dec;19(6):429-34 [9392778] Brain. 1997 Nov;120 ( Pt 11):2071-82 [9397022] Toxicol Pathol. 1997 Nov-Dec;25(6):624-31 [9437808] Toxicol Appl Pharmacol. 1997 Dec;147(2):411-8 [9439736] Teratology. 1997 Nov;56(5):317-26 [9451756] Neuropediatrics. 1997 Dec;28(6):296-306 [9453026] Environ Res. 1994 Apr;65(1):42-55 [8162884] Experientia. 1990 Sep 15;46(9):922-9 [2209801] Neurotoxicology. 1990 Summer;11(2):305-13 [2234547] Ann N Y Acad Sci. 1990;600:297-313; discussion 314 [2252317] AJNR Am J Neuroradiol. 1990 Nov-Dec;11(6):1087-96 [2124034] Biochem Cell Biol. 1990 Sep;68(9):1071-4 [2257115] Fundam Appl Toxicol. 1990 Oct;15(3):457-67 [2124194] J Neurosci. 1990 Dec;10(12):3782-92 [2269883] Neurotoxicology. 1990 Fall;11(3):465-82 [2284052] Ann N Y Acad Sci. 1990;608:318-29; discussion 330-6 [2127512] Ann N Y Acad Sci. 1990;608:337-57; discussion 358-64 [2075956] Ann N Y Acad Sci. 1990;608:394-426; discussion 426-33 [2127514] Ann N Y Acad Sci. 1990;608:434-50; discussion 450-6 [2127515] Cereb Cortex. 1994 Jan-Feb;4(1):78-96 [8180493] Neurotoxicol Teratol. 1994 Jan-Feb;16(1):71-9 [8183192] Neurosci Lett. 1994 Jan 17;166(1):89-92 [8190365] Alcohol Clin Exp Res. 1994 Feb;18(1):202-18 [8198221] Proc Natl Acad Sci U S A. 1994 Jun 7;91(12):5637-41 [8202540] Environ Res. 1994 Jul;66(1):105-24 [8013434] Environ Res. 1994 Jul;66(1):12-30 [8013435] Toxicol Appl Pharmacol. 1994 Jul;127(1):83-90 [8048057] Alcohol Clin Exp Res. 1994 Apr;18(2):248-54 [8048722] FASEB J. 1994 Jul;8(10):738-44 [8050673] Alcohol Clin Exp Res. 1994 Aug;18(4):909-16 [7526726] Prog Brain Res. 1994;102:227-43 [7800815] Brain Res Brain Res Rev. 1994 Aug;19(3):298-318 [7820134] Mayo Clin Proc. 1996 Jun;71(6):570-5 [8642886] Alcohol Clin Exp Res. 1996 Feb;20(1):139-43 [8651443] Neurotoxicol Teratol. 1994 Sep-Oct;16(5):471-7 [7845329] Ann Neurol. 1995 Dec;38(6):839-51 [8526456] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - 8,9-dihydroxy-8,9-dihydrodibenzo[a,l]pyrene is a potent morphological cell-transforming agent in C3H10T(1)/(2)Cl8 mouse embryo fibroblasts in the absence of detectable stable covalent DNA adducts. AN - 71158663; 10837018 AB - The comparative genotoxic effects of racemic trans-8,9-dihydroxy-8, 9-dihydrodibenzo[a,l]pyrene (trans-DB[a,l]P-8,9-diol), the metabolic K-region dihydrodiol of dibenzo[a,l] pyrene (DB[a,l]P) (dibenzo[def, p]chrysene) and DB[a,l]P in transformable mouse embryo C3H10T(1)/(2)Cl8 (C3H10T(1)/(2)) fibroblasts was investigated. The C3H10T(1)/(2) mouse embryo morphological cell-transforming activities of these polycyclic aromatic hydrocarbons (PAHs) were assayed using concentration-response studies. At concentrations of 33 nM and above both trans-DB[a,l]P-8,9-diol and DB[a,l]P produced significant (and similar) numbers of type II and III foci per dish and numbers of dishes with type II and II foci. Concomitant cytotoxicity studies revealed a reduction in colony survival of approximately 25% up to 198 nM for both PAHs. DNA adducts of trans-DB[a,l]P-8,9-diol and DB[a,l]P in C3H10T(1)/(2) cells were analyzed by a (32)P-post-labeling TLC/HPLC method. No adducts were observed in the DNA of C3H10T(1)/(2) cells treated with trans-DB[a, l]P-8,9-diol at concentrations that induced morphological cell transformation. Under the same exposure and chromatographic conditions, DNA adducts of deoxyadenosine and deoxyguanosine derived from the fjord region anti-DB[a,l]P-11,12-diol-13,14-epoxide and syn-DB[a,l]P-11,12-diol-13,14-epoxide were observed in the DNA of DB[a,l]P-treated cells. These results indicate that trans-DB[a,l]P-8, 9-diol has intrinsic genotoxic activity equal to that of DB[a,l]P, based on morphological cell transformation of mouse embryo fibroblasts. The activity of trans-DB[a,l]P-8,9-diol is apparently not associated with the formation of observable stable covalent DNA adducts. These results suggest that under appropriate conditions, trans-DB[a,l]P-8,9-diol may serve as an intermediate in the genotoxicity of DB[a,l]P. JF - Carcinogenesis AU - Nesnow, S AU - Davis, C AU - Padgett, W T AU - Adams, L AU - Yacopucci, M AU - King, L C AD - Environmental Carcinogenesis Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, MD-68, Research Triangle Park, NC 27711, USA. nesnow.stephen@epa.gov Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 1253 EP - 1257 VL - 21 IS - 6 SN - 0143-3334, 0143-3334 KW - Benzopyrans KW - 0 KW - Carcinogens KW - DNA Adducts KW - trans-11,12-Dihydroxy-11,12-dihydrodibenzo(a,l)pyrene KW - Index Medicus KW - Fibroblasts -- drug effects KW - Animals KW - Cells, Cultured KW - Mice, Inbred C3H KW - Mice KW - Fibroblasts -- metabolism KW - Female KW - Embryo, Mammalian -- cytology KW - Carcinogens -- toxicity KW - Cell Transformation, Neoplastic -- drug effects KW - Embryo, Mammalian -- metabolism KW - Benzopyrans -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71158663?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Carcinogenesis&rft.atitle=8%2C9-dihydroxy-8%2C9-dihydrodibenzo%5Ba%2Cl%5Dpyrene+is+a+potent+morphological+cell-transforming+agent+in+C3H10T%281%29%2F%282%29Cl8+mouse+embryo+fibroblasts+in+the+absence+of+detectable+stable+covalent+DNA+adducts.&rft.au=Nesnow%2C+S%3BDavis%2C+C%3BPadgett%2C+W+T%3BAdams%2C+L%3BYacopucci%2C+M%3BKing%2C+L+C&rft.aulast=Nesnow&rft.aufirst=S&rft.date=2000-06-01&rft.volume=21&rft.issue=6&rft.spage=1253&rft.isbn=&rft.btitle=&rft.title=Carcinogenesis&rft.issn=01433334&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-08-03 N1 - Date created - 2000-08-03 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Survival of Salmonella species in river water. AN - 71146289; 10827285 AB - The survival of four Salmonella strains in river water microcosms was monitored by culturing techniques, direct counts, whole-cell hybridization, scanning electron microscopy, and resuscitation techniques via the direct viable count method and flow cytometry. Plate counts of bacteria resuspended in filtered and untreated river water decreased several orders of magnitude within the first week of incubation, while they did not decrease as rapidly in autoclaved water. In situ hybridization studies suggested a rapid decrease in ribosomal content, as determined by the drastic decrease in the number of detectable cells after 72 h. In contrast, direct counts remained relatively constant during 45 days in all microcosoms. Although the culturable counts of two bacterial strains in filtered water after 31 days represented approximately 0.001% of the total counts, direct viable counts and resuscitation studies with a dilution series suggested that the number of viable bacteria was at least four orders of magnitude higher. Additionally, notable changes in forward scatter and in nucleic acid content were observed only after 4 h of nutrient amendments by flow cytometry. However, cells from the resuscitation experiments did not grow on solid media unless cell-free supernatant from viable cultures was added during the resuscitation period. The results in this study suggest the presence of a not immediately culturable status in Salmonella. JF - Current microbiology AU - Santo Domingo, J W AU - Harmon, S AU - Bennett, J AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory, 26 W. Martin Luther King Dr., Cincinnati, OH 45268 USA. Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 409 EP - 417 VL - 40 IS - 6 SN - 0343-8651, 0343-8651 KW - Acridine Orange KW - F30N4O6XVV KW - Index Medicus KW - Hot Temperature KW - Filtration KW - Colony Count, Microbial KW - Flow Cytometry KW - Ohio KW - Microscopy, Electron, Scanning KW - Salmonella -- growth & development KW - Fresh Water -- microbiology KW - Water Microbiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71146289?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+microbiology&rft.atitle=Survival+of+Salmonella+species+in+river+water.&rft.au=Santo+Domingo%2C+J+W%3BHarmon%2C+S%3BBennett%2C+J&rft.aulast=Santo+Domingo&rft.aufirst=J&rft.date=2000-06-01&rft.volume=40&rft.issue=6&rft.spage=409&rft.isbn=&rft.btitle=&rft.title=Current+microbiology&rft.issn=03438651&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-19 N1 - Date created - 2000-10-19 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Multiple memory systems, development and conditioning. AN - 71097094; 10802301 AB - A century of behavioral and neurobiological research suggests that Pavlovian conditioning involves three component memory systems: sensorimotor, affective and cognitive. In classical eyeblink conditioning, there is evidence that these three memory systems involve, respectively, the cerebellum, amygdala and hippocampus. This article reviews developmental research on eyeblink conditioning in rodents that is beginning to characterize ontogenetic dissociations and interactions among these memory systems. This research shows that the functional development of the affective system (conditioned fear response) precedes that of the sensorimotor system (conditioned eyeblink reflex). Modulation of these two systems by cognitive processes also seems to emerge at different points in ontogeny. Implications for cognitive development and research on multiple memory systems are discussed. JF - Behavioural brain research AU - Stanton, M E AD - Department of Psychology, Neurotoxicology Division, US Environmental Protection Agency, University of North Carolina, Research Triangle Park, Chapel Hill, NC 27711, USA. stanton.mark@epamail.epa.gov Y1 - 2000/06/01/ PY - 2000 DA - 2000 Jun 01 SP - 25 EP - 37 VL - 110 IS - 1-2 SN - 0166-4328, 0166-4328 KW - Index Medicus KW - Animals KW - Humans KW - Learning -- physiology KW - Conditioning, Classical -- physiology KW - Memory -- physiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71097094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Behavioural+brain+research&rft.atitle=Multiple+memory+systems%2C+development+and+conditioning.&rft.au=Stanton%2C+M+E&rft.aulast=Stanton&rft.aufirst=M&rft.date=2000-06-01&rft.volume=110&rft.issue=1-2&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Behavioural+brain+research&rft.issn=01664328&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-30 N1 - Date created - 2000-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Reduction of halogenated hydrocarbons in aqueous media: I. Involvement of sulfur in iron catalysis. AN - 71077725; 10789975 AB - Experiments were carried out to investigate the reduction of tri- and tetra-chloroethene with iron in aqueous solutions. Results indicate (i) dependence of the dehalogenation capacity of the iron on its sulfur content and (ii) that ethyne was the primary dehalogenated hydrocarbon for both compounds. A reaction mechanism based on in situ formation of ferrous sulfide as the catalyst and its reaction with the halocompounds in the presence of hydrogen has been postulated. JF - Chemosphere AU - Hassan, S M AD - Technology Applications Inc., c/o US Environmental Protection Agency, Athens, GA 30605, USA. shassan@uga.edu Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 1357 EP - 1363 VL - 40 IS - 12 SN - 0045-6535, 0045-6535 KW - Ferrous Compounds KW - 0 KW - Hydrocarbons, Halogenated KW - Water KW - 059QF0KO0R KW - Trichloroethylene KW - 290YE8AR51 KW - Sulfur KW - 70FD1KFU70 KW - Hydrogen KW - 7YNJ3PO35Z KW - Iron KW - E1UOL152H7 KW - Acetylene KW - OC7TV75O83 KW - ferrous sulfide KW - TH5J4TUX6S KW - Tetrachloroethylene KW - TJ904HH8SN KW - Index Medicus KW - Oxidation-Reduction KW - Trichloroethylene -- chemistry KW - Chromatography, Gas KW - Hydrogen -- chemistry KW - Tetrachloroethylene -- chemistry KW - Acetylene -- analysis KW - Ferrous Compounds -- chemistry KW - Acetylene -- chemical synthesis KW - Catalysis KW - Water -- chemistry KW - Iron -- chemistry KW - Sulfur -- chemistry KW - Hydrocarbons, Halogenated -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71077725?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere&rft.atitle=Reduction+of+halogenated+hydrocarbons+in+aqueous+media%3A+I.+Involvement+of+sulfur+in+iron+catalysis.&rft.au=Hassan%2C+S+M&rft.aulast=Hassan&rft.aufirst=S&rft.date=2000-06-01&rft.volume=40&rft.issue=12&rft.spage=1357&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=00456535&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-30 N1 - Date created - 2000-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Organochlorine compounds in the Gulf of Bothnia; sediment and benthic species AN - 52320382; 2000-063641 JF - Chemosphere (Oxford) AU - Strandberg, Bo AU - Bandh, Cecilia AU - van Bavel, Bert AU - Bergqvist, Per-Anders AU - Broman, Dag AU - Ishaq, Rasha AU - Naf, Carina AU - Rappe, Christoffer A2 - Birnbaum, L. S. A2 - Fiedler, H. A2 - Hutzinger, O. A2 - Louw, L. A2 - Needham, L. L. A2 - Patterson, D. G., Jr. A2 - Vetter, W. Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 1205 EP - 1211 PB - Pergamon, Oxford VL - 40 IS - 9-11 SN - 0045-6535, 0045-6535 KW - chlorinated hydrocarbons KW - benthic taxa KW - PCBs KW - organochlorine pesticides KW - Europe KW - environmental analysis KW - biomagnification KW - bioaccumulation KW - sediments KW - halogenated hydrocarbons KW - Baltic Sea KW - dieldrin KW - insecticides KW - concentration KW - toxic materials KW - monitoring KW - Western Europe KW - Finland KW - pollutants KW - pollution KW - bioassays KW - Scandinavia KW - organic compounds KW - Gulf of Bothnia KW - DDT KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - coastal environment KW - pesticides KW - North Atlantic KW - Atlantic Ocean KW - aromatic hydrocarbons KW - Sweden KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52320382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=Organochlorine+compounds+in+the+Gulf+of+Bothnia%3B+sediment+and+benthic+species&rft.au=Strandberg%2C+Bo%3BBandh%2C+Cecilia%3Bvan+Bavel%2C+Bert%3BBergqvist%2C+Per-Anders%3BBroman%2C+Dag%3BIshaq%2C+Rasha%3BNaf%2C+Carina%3BRappe%2C+Christoffer&rft.aulast=Strandberg&rft.aufirst=Bo&rft.date=2000-06-01&rft.volume=40&rft.issue=9-11&rft.spage=1205&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Conference title - Eighteenth symposium on Halogenated environmental organic pollutants N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 25 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - aromatic hydrocarbons; Atlantic Ocean; Baltic Sea; benthic taxa; bioaccumulation; bioassays; biomagnification; chlorinated hydrocarbons; coastal environment; concentration; DDT; dieldrin; environmental analysis; Europe; Finland; Gulf of Bothnia; halogenated hydrocarbons; hydrocarbons; insecticides; monitoring; North Atlantic; organic compounds; organochlorine pesticides; PCBs; pesticides; pollutants; pollution; polycyclic aromatic hydrocarbons; Scandinavia; sediments; Sweden; toxic materials; Western Europe ER - TY - JOUR T1 - Separation of non-ortho polychlorinated biphenyl congeners on pre-packed carbon tubes; application to analysis in sewage sludge and soil samples AN - 52320252; 2000-063634 JF - Chemosphere (Oxford) AU - Molina, L AU - Cabes, M AU - Diaz-Ferrero, J AU - Coll, M AU - Marti, R AU - Broto-Puig, F AU - Comellas, L AU - Rodriguez-Larena, M C A2 - Birnbaum, L. S. A2 - Fiedler, H. A2 - Hutzinger, O. A2 - Louw, L. A2 - Needham, L. L. A2 - Patterson, D. G., Jr. A2 - Vetter, W. Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 921 EP - 927 PB - Pergamon, Oxford VL - 40 IS - 9-11 SN - 0045-6535, 0045-6535 KW - soils KW - chlorinated hydrocarbons KW - toxic materials KW - experimental studies KW - pollutants KW - PCBs KW - pollution KW - laboratory studies KW - sewage sludge KW - physical properties KW - organic compounds KW - toxicity KW - sediments KW - chemical properties KW - halogenated hydrocarbons KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52320252?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=Separation+of+non-ortho+polychlorinated+biphenyl+congeners+on+pre-packed+carbon+tubes%3B+application+to+analysis+in+sewage+sludge+and+soil+samples&rft.au=Molina%2C+L%3BCabes%2C+M%3BDiaz-Ferrero%2C+J%3BColl%2C+M%3BMarti%2C+R%3BBroto-Puig%2C+F%3BComellas%2C+L%3BRodriguez-Larena%2C+M+C&rft.aulast=Molina&rft.aufirst=L&rft.date=2000-06-01&rft.volume=40&rft.issue=9-11&rft.spage=921&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Conference title - Eighteenth symposium on Halogenated environmental organic pollutants N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 16 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - chemical fractionation; chemical properties; chlorinated hydrocarbons; experimental studies; halogenated hydrocarbons; laboratory studies; organic compounds; PCBs; physical properties; pollutants; pollution; sediments; sewage sludge; soils; toxic materials; toxicity ER - TY - JOUR T1 - Eighteenth symposium on Halogenated environmental organic pollutants AN - 52319572; 2000-063633 JF - Chemosphere (Oxford) A2 - Birnbaum, L. S. A2 - Fiedler, H. A2 - Hutzinger, O. A2 - Louw, L. A2 - Needham, L. L. A2 - Patterson, D. G., Jr. A2 - Vetter, W. Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 913 EP - 1288 PB - Pergamon, Oxford VL - 40 IS - 9-11 SN - 0045-6535, 0045-6535 KW - soils KW - chlorinated hydrocarbons KW - toxic materials KW - degradation KW - pollutants KW - surface water KW - PCBs KW - pollution KW - ecosystems KW - migration of elements KW - dioxins KW - human ecology KW - waste management KW - organic compounds KW - symposia KW - halogenated hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52319572?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=Eighteenth+symposium+on+Halogenated+environmental+organic+pollutants&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2000-06-01&rft.volume=40&rft.issue=9-11&rft.spage=913&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Conference title - Eighteenth symposium on Halogenated environmental organic pollutants N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Document feature - illus. N1 - SuppNotes - Individual papers within scope are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - chlorinated hydrocarbons; degradation; dioxins; ecosystems; halogenated hydrocarbons; human ecology; migration of elements; organic compounds; PCBs; pollutants; pollution; soils; surface water; symposia; toxic materials; waste management ER - TY - JOUR T1 - Regional aspects and statistical characterisation of the load with semivolatile organic compounds at remote Austrian forest sites AN - 52318714; 2000-063637 JF - Chemosphere (Oxford) AU - Weiss, P AU - Lorbeer, G AU - Scharf, S A2 - Birnbaum, L. S. A2 - Fiedler, H. A2 - Hutzinger, O. A2 - Louw, L. A2 - Needham, L. L. A2 - Patterson, D. G., Jr. A2 - Vetter, W. Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 1159 EP - 1171 PB - Pergamon, Oxford VL - 40 IS - 9-11 SN - 0045-6535, 0045-6535 KW - chlorinated hydrocarbons KW - PCBs KW - Europe KW - environmental analysis KW - cluster analysis KW - bioaccumulation KW - critical load KW - PCDFs KW - Central Europe KW - halogenated hydrocarbons KW - chemical composition KW - soils KW - forests KW - concentration KW - monitoring KW - pollutants KW - statistical analysis KW - pollution KW - Austria KW - PCDDs KW - correlation coefficient KW - volatiles KW - organic compounds KW - humus KW - detection KW - regional KW - volatile organic compounds KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52318714?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=Regional+aspects+and+statistical+characterisation+of+the+load+with+semivolatile+organic+compounds+at+remote+Austrian+forest+sites&rft.au=Weiss%2C+P%3BLorbeer%2C+G%3BScharf%2C+S&rft.aulast=Weiss&rft.aufirst=P&rft.date=2000-06-01&rft.volume=40&rft.issue=9-11&rft.spage=1159&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Conference title - Eighteenth symposium on Halogenated environmental organic pollutants N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 71 N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - aromatic hydrocarbons; Austria; bioaccumulation; Central Europe; chemical composition; chlorinated hydrocarbons; cluster analysis; concentration; correlation coefficient; critical load; detection; environmental analysis; Europe; forests; halogenated hydrocarbons; humus; hydrocarbons; monitoring; organic compounds; PCBs; PCDDs; PCDFs; pollutants; pollution; polycyclic aromatic hydrocarbons; regional; soils; statistical analysis; volatile organic compounds; volatiles ER - TY - JOUR T1 - Search for chlorobornanes in river sediments and in influents and effluents AN - 52318654; 2000-063640 JF - Chemosphere (Oxford) AU - Rappe, Christoffer AU - Haglund, Peter AU - Andersson, Rolf AU - Buser, Hans-Rudolf A2 - Birnbaum, L. S. A2 - Fiedler, H. A2 - Hutzinger, O. A2 - Louw, L. A2 - Needham, L. L. A2 - Patterson, D. G., Jr. A2 - Vetter, W. Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 1197 EP - 1204 PB - Pergamon, Oxford VL - 40 IS - 9-11 SN - 0045-6535, 0045-6535 KW - United States KW - chlorinated hydrocarbons KW - Great Lakes region KW - rivers and streams KW - chemical waste KW - environmental analysis KW - remediation KW - Beaver Dam Creek KW - PCDFs KW - sediments KW - halogenated hydrocarbons KW - Wisconsin KW - discharge KW - North America KW - concentration KW - toxic materials KW - paper mills KW - Wisconsin River KW - pollutants KW - effluents KW - surface water KW - pollution KW - dioxins KW - PCDDs KW - Ontario KW - volatiles KW - organic compounds KW - Canada KW - waste disposal KW - Eastern Canada KW - fluvial environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52318654?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=Search+for+chlorobornanes+in+river+sediments+and+in+influents+and+effluents&rft.au=Rappe%2C+Christoffer%3BHaglund%2C+Peter%3BAndersson%2C+Rolf%3BBuser%2C+Hans-Rudolf&rft.aulast=Rappe&rft.aufirst=Christoffer&rft.date=2000-06-01&rft.volume=40&rft.issue=9-11&rft.spage=1197&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Conference title - Eighteenth symposium on Halogenated environmental organic pollutants N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 15 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - Beaver Dam Creek; Canada; chemical waste; chlorinated hydrocarbons; concentration; dioxins; discharge; Eastern Canada; effluents; environmental analysis; fluvial environment; Great Lakes region; halogenated hydrocarbons; North America; Ontario; organic compounds; paper mills; PCDDs; PCDFs; pollutants; pollution; remediation; rivers and streams; sediments; surface water; toxic materials; United States; volatiles; waste disposal; Wisconsin; Wisconsin River ER - TY - JOUR T1 - An algebraic/graphical tool to compare ecosystems with respect to their pollution; V, Cluster analysis and Hasse diagrams AN - 52317846; 2000-062681 JF - Chemosphere (Oxford) AU - Pudenz, S AU - Brueggemann, R AU - Luther, B AU - Kaune, A AU - Kreimes, K Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 1373 EP - 1382 PB - Pergamon, Oxford VL - 40 IS - 12 SN - 0045-6535, 0045-6535 KW - soils KW - zinc KW - chaos KW - patterns KW - statistical analysis KW - pollution KW - lead KW - mathematical models KW - ecosystems KW - vegetation KW - Hasse diagrams KW - cluster analysis KW - bioaccumulation KW - fuzzy logic KW - multivariate analysis KW - metals KW - mathematical methods KW - theoretical models KW - graphic methods KW - heavy metals KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52317846?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=An+algebraic%2Fgraphical+tool+to+compare+ecosystems+with+respect+to+their+pollution%3B+V%2C+Cluster+analysis+and+Hasse+diagrams&rft.au=Pudenz%2C+S%3BBrueggemann%2C+R%3BLuther%2C+B%3BKaune%2C+A%3BKreimes%2C+K&rft.aulast=Pudenz&rft.aufirst=S&rft.date=2000-06-01&rft.volume=40&rft.issue=12&rft.spage=1373&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 18 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - bioaccumulation; chaos; cluster analysis; ecosystems; fuzzy logic; graphic methods; Hasse diagrams; heavy metals; lead; mathematical methods; mathematical models; metals; multivariate analysis; patterns; pollution; soils; statistical analysis; theoretical models; vegetation; zinc ER - TY - JOUR T1 - Simulation of long-term environmental dynamics of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans using the dynamic multimedia environmental fate model and its implication to the time trend analysis of dioxins AN - 52316942; 2000-063636 JF - Chemosphere (Oxford) AU - Suzuki, Noriyuki AU - Yasuda, Masashi AU - Sakurai, Takeo AU - Nakanishi, Junko A2 - Birnbaum, L. S. A2 - Fiedler, H. A2 - Hutzinger, O. A2 - Louw, L. A2 - Needham, L. L. A2 - Patterson, D. G., Jr. A2 - Vetter, W. Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 969 EP - 976 PB - Pergamon, Oxford VL - 40 IS - 9-11 SN - 0045-6535, 0045-6535 KW - soils KW - degradation KW - erosion KW - Monte Carlo analysis KW - statistical analysis KW - data processing KW - wind erosion KW - pollution KW - pentachlorophenol KW - chlorophenols KW - simulation KW - PCDDs KW - models KW - computer programs KW - polychlorinated dibenzofurans KW - organic compounds KW - transport KW - sensitivity analysis KW - PCDFs KW - sediments KW - polychlorinated dibenzo-p-dioxins KW - soil erosion KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52316942?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=Simulation+of+long-term+environmental+dynamics+of+polychlorinated+dibenzo-p-dioxins+and+polychlorinated+dibenzofurans+using+the+dynamic+multimedia+environmental+fate+model+and+its+implication+to+the+time+trend+analysis+of+dioxins&rft.au=Suzuki%2C+Noriyuki%3BYasuda%2C+Masashi%3BSakurai%2C+Takeo%3BNakanishi%2C+Junko&rft.aulast=Suzuki&rft.aufirst=Noriyuki&rft.date=2000-06-01&rft.volume=40&rft.issue=9-11&rft.spage=969&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Conference title - Eighteenth symposium on Halogenated environmental organic pollutants N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 15 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - chlorophenols; computer programs; data processing; degradation; erosion; models; Monte Carlo analysis; organic compounds; PCDDs; PCDFs; pentachlorophenol; pollution; polychlorinated dibenzo-p-dioxins; polychlorinated dibenzofurans; sediments; sensitivity analysis; simulation; soil erosion; soils; statistical analysis; transport; wind erosion ER - TY - JOUR T1 - Study of evolution of PCDD/F in sewage sludge-amended soils for land restoration purposes AN - 52316861; 2000-063638 JF - Chemosphere (Oxford) AU - Molina, L AU - Diaz-Ferrero, J AU - Coll, M AU - Marti, R AU - Broto-Puig, F AU - Comellas, L AU - Rodriguez-Larena, M C A2 - Birnbaum, L. S. A2 - Fiedler, H. A2 - Hutzinger, O. A2 - Louw, L. A2 - Needham, L. L. A2 - Patterson, D. G., Jr. A2 - Vetter, W. Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 1173 EP - 1178 PB - Pergamon, Oxford VL - 40 IS - 9-11 SN - 0045-6535, 0045-6535 KW - soils KW - concentration KW - experimental studies KW - degradation KW - waste water KW - Spain KW - pollutants KW - soil treatment KW - pollution KW - Europe KW - Iberian Peninsula KW - environmental analysis KW - Southern Europe KW - remediation KW - PCDDs KW - sewage sludge KW - decontamination KW - PCDFs KW - water treatment KW - lysimeters KW - Catalonia Spain KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52316861?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=Study+of+evolution+of+PCDD%2FF+in+sewage+sludge-amended+soils+for+land+restoration+purposes&rft.au=Molina%2C+L%3BDiaz-Ferrero%2C+J%3BColl%2C+M%3BMarti%2C+R%3BBroto-Puig%2C+F%3BComellas%2C+L%3BRodriguez-Larena%2C+M+C&rft.aulast=Molina&rft.aufirst=L&rft.date=2000-06-01&rft.volume=40&rft.issue=9-11&rft.spage=1173&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Conference title - Eighteenth symposium on Halogenated environmental organic pollutants N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 12 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - Catalonia Spain; concentration; decontamination; degradation; environmental analysis; Europe; experimental studies; Iberian Peninsula; lysimeters; PCDDs; PCDFs; pollutants; pollution; remediation; sewage sludge; soil treatment; soils; Southern Europe; Spain; waste water; water treatment ER - TY - JOUR T1 - Screening-level ecological risk assessment of polychlorinated dibenzo-p-dioxins and dibenzofurans in sediments and aquatic biota from the Venice Lagoon, Italy AN - 52316726; 2000-063639 JF - Chemosphere (Oxford) AU - Wenning, R AU - Dodge, D AU - Peck, B AU - Shearer, K AU - Luksemburg, W AU - Della Sala, S AU - Scazzola, R A2 - Birnbaum, L. S. A2 - Fiedler, H. A2 - Hutzinger, O. A2 - Louw, L. A2 - Needham, L. L. A2 - Patterson, D. G., Jr. A2 - Vetter, W. Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 1179 EP - 1187 PB - Pergamon, Oxford VL - 40 IS - 9-11 SN - 0045-6535, 0045-6535 KW - chlorinated hydrocarbons KW - degradation KW - PCBs KW - Europe KW - ecosystems KW - environmental analysis KW - Italy KW - Southern Europe KW - bioaccumulation KW - toxicity KW - PCDFs KW - sediments KW - halogenated hydrocarbons KW - Venice Italy KW - concentration KW - monitoring KW - food chains KW - pollutants KW - pollution KW - dioxins KW - biota KW - organic compounds KW - Veneto Italy KW - industrial waste KW - lagoonal environment KW - risk assessment KW - waste disposal KW - aquatic environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52316726?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=Screening-level+ecological+risk+assessment+of+polychlorinated+dibenzo-p-dioxins+and+dibenzofurans+in+sediments+and+aquatic+biota+from+the+Venice+Lagoon%2C+Italy&rft.au=Wenning%2C+R%3BDodge%2C+D%3BPeck%2C+B%3BShearer%2C+K%3BLuksemburg%2C+W%3BDella+Sala%2C+S%3BScazzola%2C+R&rft.aulast=Wenning&rft.aufirst=R&rft.date=2000-06-01&rft.volume=40&rft.issue=9-11&rft.spage=1179&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Conference title - Eighteenth symposium on Halogenated environmental organic pollutants N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 23 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - aquatic environment; bioaccumulation; biota; chlorinated hydrocarbons; concentration; degradation; dioxins; ecosystems; environmental analysis; Europe; food chains; halogenated hydrocarbons; industrial waste; Italy; lagoonal environment; monitoring; organic compounds; PCBs; PCDFs; pollutants; pollution; risk assessment; sediments; Southern Europe; toxicity; Veneto Italy; Venice Italy; waste disposal ER - TY - JOUR T1 - Degradation half-life times of PCDDs, PCDFs and PCBs for environmental fate modeling AN - 52316695; 2000-063635 JF - Chemosphere (Oxford) AU - Sinkkonen, Seija AU - Paasivirta, Jaakko A2 - Birnbaum, L. S. A2 - Fiedler, H. A2 - Hutzinger, O. A2 - Louw, L. A2 - Needham, L. L. A2 - Patterson, D. G., Jr. A2 - Vetter, W. Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 943 EP - 949 PB - Pergamon, Oxford VL - 40 IS - 9-11 SN - 0045-6535, 0045-6535 KW - chlorinated hydrocarbons KW - degradation KW - PCBs KW - hydrolysis KW - radioactive decay KW - Europe KW - environmental analysis KW - bioaccumulation KW - toxicity KW - transport KW - PCDFs KW - sediments KW - chemical properties KW - halogenated hydrocarbons KW - Baltic region KW - Baltic Sea KW - soils KW - biodegradation KW - pollutants KW - surface water KW - photochemistry KW - pollution KW - PCDDs KW - models KW - volatiles KW - organic compounds KW - photolysis KW - air KW - North Atlantic KW - Atlantic Ocean KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52316695?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=Degradation+half-life+times+of+PCDDs%2C+PCDFs+and+PCBs+for+environmental+fate+modeling&rft.au=Sinkkonen%2C+Seija%3BPaasivirta%2C+Jaakko&rft.aulast=Sinkkonen&rft.aufirst=Seija&rft.date=2000-06-01&rft.volume=40&rft.issue=9-11&rft.spage=943&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Conference title - Eighteenth symposium on Halogenated environmental organic pollutants N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 50 N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - air; Atlantic Ocean; Baltic region; Baltic Sea; bioaccumulation; biodegradation; chemical properties; chlorinated hydrocarbons; degradation; environmental analysis; Europe; halogenated hydrocarbons; hydrolysis; models; North Atlantic; organic compounds; PCBs; PCDDs; PCDFs; photochemistry; photolysis; pollutants; pollution; radioactive decay; sediments; soils; surface water; toxicity; transport; volatiles ER - TY - JOUR T1 - Isotope evaluation of nitrate attenuation in restored and native riparian zones in the Kankakee Watershed, Indiana AN - 52273929; 2001-007585 AB - Isotopic analyses of oxygen and hydrogen of water (delta (super 18) O and delta D) and nitrogen and oxygen of nitrate (delta (super 15) N and delta (super 18) O) are used in conjunction with conventional water chemistry and hydrologic measurements to investigate water flow and nitrogen cycling mechanisms through two riparian zones adjacent to upland agricultural fields. Within the Kankakee watershed of northwestern Indiana, a native riverine wetland was compared to a constructed riverine wetland to assess the wetland restoration in terms of water flow and nitrate attenuation mechanisms and efficiency. Conditions in the constructed wetland are controlled by a system of individual cells separated by dikes and levees and into which water is periodically pumped, while the native wetland occupies an area of remnant river meanders or oxbows. Analyses of samples taken from well transects across both wetlands suggest that water flow across the constructed wetland has been greatly altered. Nitrate cycling characteristics show significant differences between the two wetlands and particularly, nitrate attenuation efficiency is greatly reduced in the constructed wetland. JF - Wetlands (Wilmington, NC) AU - Sidle, William C AU - Roose, Deborah L AU - Yzerman, Victor T Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 333 EP - 345 PB - Society of Wetlands Scientists, Wilmington, NC VL - 20 IS - 2 SN - 0277-5212, 0277-5212 KW - United States KW - Kankakee River basin KW - oxygen KW - Newton County Indiana KW - isotopes KW - reclamation KW - watersheds KW - stable isotopes KW - ground water KW - constructed wetlands KW - attenuation KW - Indiana KW - tracers KW - drainage basins KW - nitrate ion KW - geochemistry KW - hydrology KW - meanders KW - isotope ratios KW - surface water KW - agriculture KW - O-18/O-16 KW - hydrochemistry KW - oxbow lakes KW - riparian environment KW - wetlands KW - D/H KW - hydrogen KW - fluvial features KW - water wells KW - land use KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52273929?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wetlands+%28Wilmington%2C+NC%29&rft.atitle=Isotope+evaluation+of+nitrate+attenuation+in+restored+and+native+riparian+zones+in+the+Kankakee+Watershed%2C+Indiana&rft.au=Sidle%2C+William+C%3BRoose%2C+Deborah+L%3BYzerman%2C+Victor+T&rft.aulast=Sidle&rft.aufirst=William&rft.date=2000-06-01&rft.volume=20&rft.issue=2&rft.spage=333&rft.isbn=&rft.btitle=&rft.title=Wetlands+%28Wilmington%2C+NC%29&rft.issn=02775212&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 55 N1 - PubXState - NC N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - agriculture; attenuation; constructed wetlands; D/H; drainage basins; fluvial features; geochemistry; ground water; hydrochemistry; hydrogen; hydrology; Indiana; isotope ratios; isotopes; Kankakee River basin; land use; meanders; Newton County Indiana; nitrate ion; O-18/O-16; oxbow lakes; oxygen; reclamation; riparian environment; stable isotopes; surface water; tracers; United States; water wells; watersheds; wetlands ER - TY - JOUR T1 - New horizons: future directions in neurotoxicology. AN - 21263651; 11703792 AB - Neurotoxicology is a relatively young discipline that has undergone significant growth during the last 25 years. During the late 1970s and 1980s, numerous national and international conferences and meetings were devoted to the topic of neurotoxicology, the formation of societies or specialty sections related to neurotoxicology, and the establishment of two independent peer-reviewed journals devoted to neurotoxicology. This decade was also associated with a rapid increase in our knowledge of chemical effects on the structure and function of the nervous system. During the 1990s, regulatory agencies such as the U.S. Environmental Protection Agency accepted neurotoxicology as a crucial end point and neurotoxicity testing and risk assessment guidelines were published. Neurotoxicology has also been accepted at the international level as evidenced by environmental criteria documents published by the International Programme on Chemical Safety and testing guidelines by the Organization of Economic Cooperation and Development. In recent years, there has been increased concern that the etiology of some neurodegenerative diseases may be associated with exposure to neurotoxic agents and that subpopulations of humans such as children and the elderly may be differentially sensitive to neurotoxic exposure. In the future, mechanistic information derived from basic research will be used in the identification and characterization of chemicals with neurotoxic potential. JF - Environmental Health Perspectives AU - Tilson, H A AD - National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA, tilson.hugh@epa.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 439 EP - 441 PB - US Government Printing Office, Superintendent of Documents, P.O. Box 371954 Pittsburgh PA 15250-7954 USA VL - 108 IS - Suppl 3 SN - 0091-6765, 0091-6765 KW - Health & Safety Science Abstracts; Risk Abstracts; Environment Abstracts KW - Risk assessment KW - EPA KW - USA KW - Etiology KW - Conferences KW - subpopulations KW - guidelines KW - Economics KW - Neurotoxicity KW - elderly KW - Children KW - H 12000:Epidemiology and Public Health KW - R2 23050:Environment KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21263651?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Health+Perspectives&rft.atitle=New+horizons%3A+future+directions+in+neurotoxicology.&rft.au=Tilson%2C+H+A&rft.aulast=Tilson&rft.aufirst=H&rft.date=2000-06-01&rft.volume=108&rft.issue=Suppl+3&rft.spage=439&rft.isbn=&rft.btitle=&rft.title=Environmental+Health+Perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-01-01 N1 - Last updated - 2015-03-31 N1 - SubjectsTermNotLitGenreText - Risk assessment; EPA; Etiology; subpopulations; Conferences; guidelines; Neurotoxicity; Economics; Children; elderly; USA ER - TY - JOUR T1 - Dynamics of coarse riparian detritus in a Hawaiian stream ecosystem: a comparison of drought and post-drought conditions AN - 18015501; 4749451 AB - Input, standing crop, and export of coarse (>4 mm super(2)) particulate organic matter (CPOM) was measured in Kaiwiki Stream, a forested stream on the Island of Hawaii. The study was conducted during and after a severe drought associated with the 1997-1998 El Nino/Southern Oscillation event. During the drought, stream discharge was reduced by similar to 70% and no spates occurred. Hawaiian streams draining windward mountain slopes normally experience >20 spates per year. During the drought, the mean rate of CPOM export was 8% of the mean input rate; following the drought, the export rate increased to 40% of input. Rates of marked leaf transport within the study area increased 30- to 50-fold following the drought, and rates of stem transport increased 10- to 30-fold. Lower rates of CPOM export and transport during the drought suggested that retention and potential availability to detritivores were increased compared to the post-drought period. Differences in CPOM standing crops during and after the drought were not significant however, and the difference in turnover times was small, suggesting that the quantity of detrital food did not change substantially. Results of litter bag experiments indicated that detritivores had little effect on leaf processing. Although detritus was mainly composed of leaves and stems in Kaiwiki Stream, these items are not important food resources for macroscopic detritivores. In contrast, detritivores in the stream frequently fed on detrital fruit. Year-round availability and seasonally high input rates raised the possibility that detrital fruit is an important food resource in Hawaiian streams. CPOM input during the drought was dominated by direct litterfall from the riparian forest, with lower rates of input from upstream reaches and lateral movement from the forest floor. CPOM input increased significantly when normal discharge resumed. Rates of input to the study area from upstream reaches equaled direct litterfall, but rates of lateral input remained low. Although leaf input decreased following the drought, CPOM input increased because of increased fruit, stem, and flower inputs. Input of detrital fruit to the stream was continuous and, at peak fruiting periods, input rates and standing crops equaled or exceeded all other forms of detritus. JF - Journal of the North American Benthological Society AU - Larned, ST AD - Coastal Ecology Branch, US Environmental Protection Agency, Newport, OR 973695, USA, larned.scott@epa.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 215 EP - 234 VL - 19 IS - 2 SN - 0887-3593, 0887-3593 KW - Detrital fruit KW - USA, Hawaii KW - ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts; Ecology Abstracts KW - Aquatic organisms KW - Ecosystems KW - Leaves KW - River discharge KW - Food availability KW - USA, Hawaii, Hawaii I., Kaiwiki Stream KW - Drought KW - Freshwater KW - Streams KW - Organic Matter KW - Particulate organic matter KW - Detritus feeders KW - El Nino KW - Riparian environments KW - Hydrology KW - Detritus KW - Droughts KW - Abiotic factors KW - D 04310:Freshwater KW - Q1 08482:Ecosystems and energetics KW - SW 0835:Streamflow and runoff UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18015501?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+North+American+Benthological+Society&rft.atitle=Dynamics+of+coarse+riparian+detritus+in+a+Hawaiian+stream+ecosystem%3A+a+comparison+of+drought+and+post-drought+conditions&rft.au=Larned%2C+ST&rft.aulast=Larned&rft.aufirst=ST&rft.date=2000-06-01&rft.volume=19&rft.issue=2&rft.spage=215&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+North+American+Benthological+Society&rft.issn=08873593&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Aquatic organisms; Particulate organic matter; Detritus feeders; River discharge; Leaves; Hydrology; Food availability; Droughts; Detritus; Abiotic factors; Riparian environments; Streams; Organic Matter; Ecosystems; El Nino; Drought; USA, Hawaii, Hawaii I., Kaiwiki Stream; Freshwater ER - TY - JOUR T1 - Implications of taxonomic resolution and sample habitat for stream classification at a broad geographic scale AN - 18014282; 4749462 AB - Macroinvertebrate biological monitoring in Victoria, Australia, has required substantial resources over the past decade, and often results have taken years to reach water managers. Ways of reducing the time and effort required in this program were examined. The influence of taxonomic resolution and sample habitat on the classification and ordination of 165 stream sites in 27 catchments across Victoria was examined by progressively reducing the level of detail in the original data. Macroinvertebrate samples were collected from 2 habitats (riffle and edge) at each site. A 3rd data set was generated by amalgamating the individual habitats. These 3 habitat treatments were analyzed at family, genus, and species level, and a 4th taxonomic treatment was generated at species level including Ephemeroptera, Plecoptera, and Trichoptera (EPT) taxa only. All 12 data sets were analyzed using presence/absence data, and each was used to classify sites across Victoria into groups that were characterized using environmental variables. The Mantel test was used to compare the 12 analyses, and showed that each of the analyses produced similar patterns. A number of possible ways to reduce time and effort in broad-scale macroinvertebrate studies were evident: 1) single habitat sampling was sufficient for biological monitoring, 2) studies that require species-level discrimination may be able to reduce costs by identifying EPT taxa only, and 3) genus-level identifications offered no substantial advantage over family-level identifications. Overall, species-level identification appeared to be unnecessary for broad-scale monitoring programs and, in future, taxonomic effort could be reduced by identifying to family level only. JF - Journal of the North American Benthological Society AU - Hewlett, R AD - Freshwater Sciences, Environment Protection Authority of Victoria, 40 City Road, Southbank, Melbourne 3006, Australia, rebecca.hewlett@epa.vic.gov.au Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 352 EP - 361 VL - 19 IS - 2 SN - 0887-3593, 0887-3593 KW - Australia KW - Caddisflies KW - Mayflies KW - Stoneflies KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Entomology Abstracts; Ecology Abstracts KW - Environmental monitoring KW - Rivers KW - Biological surveys KW - Plecoptera KW - Australia, Victoria KW - Check lists KW - Data collections KW - Freshwater KW - Habitat KW - Streams KW - Classification KW - Ephemeroptera KW - Analytical techniques KW - Ecosystem management KW - Taxonomy KW - Sampling KW - Environment management KW - Aquatic insects KW - Trichoptera KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08382:Ecological techniques and apparatus KW - D 04001:Methodology - general KW - Z 05210:Aquatic entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18014282?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+North+American+Benthological+Society&rft.atitle=Implications+of+taxonomic+resolution+and+sample+habitat+for+stream+classification+at+a+broad+geographic+scale&rft.au=Hewlett%2C+R&rft.aulast=Hewlett&rft.aufirst=R&rft.date=2000-06-01&rft.volume=19&rft.issue=2&rft.spage=352&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+North+American+Benthological+Society&rft.issn=08873593&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Biological surveys; Rivers; Classification; Analytical techniques; Ecosystem management; Check lists; Taxonomy; Data collections; Habitat; Aquatic insects; Environment management; Environmental monitoring; Sampling; Streams; Plecoptera; Ephemeroptera; Trichoptera; Australia, Victoria; Freshwater ER - TY - JOUR T1 - The relations between spectral data and water in a crop production environment AN - 17778078; 4823663 AB - The results of a correlation study between high spatial resolution (1 m) Multi-Spectral Scanner (MSS) data and reference data with particular emphasis to soil-plant water parameters are presented. Digital images of the Management Systems Evaluation Area (MSEA) research site in south central Ohio were acquired using MSS mounted on an aircraft. Gravimetric soil water, plant water, and plant residue information relating to MSS data were collected in April, July, August, and September, 1994. It was found that the correlation between MSS data and soil water was changed by the presence of crop residue versus bare soil. The combined water estimates from the soil and plant enhanced the correlation structure between MSS parameters and soil-plant water variables. It was also shown that when using soil water content data below the 0.5-2.0 cm soil depth, the correlation with MSS parameters decreased. JF - International Journal of Remote Sensing AU - Senay, G B AU - Ward, AD AU - Lyon, J G AU - Fausey, N R AU - Nokes, SE AU - Brown, L C AD - US EPA, SAIC-PAI, 26 W. Martin Luther King Dr. Cincinnati, OH 45268, USA, senay.gabriel@epa.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 1897 EP - 1910 VL - 21 IS - 9 SN - 0143-1161, 0143-1161 KW - USA, Ohio KW - Water Resources Abstracts KW - Remote Sensing KW - Cropland KW - Performance Evaluation KW - Plants KW - Soil-water-plant Relationships KW - Soil Water KW - Data Collections KW - SW 0845:Water in soils KW - SW 5040:Data acquisition UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17778078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Remote+Sensing&rft.atitle=The+relations+between+spectral+data+and+water+in+a+crop+production+environment&rft.au=Senay%2C+G+B%3BWard%2C+AD%3BLyon%2C+J+G%3BFausey%2C+N+R%3BNokes%2C+SE%3BBrown%2C+L+C&rft.aulast=Senay&rft.aufirst=G&rft.date=2000-06-01&rft.volume=21&rft.issue=9&rft.spage=1897&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Cropland; Remote Sensing; Performance Evaluation; Plants; Soil-water-plant Relationships; Soil Water; Data Collections ER - TY - JOUR T1 - Children's Exposure Assessment: A Review of Factors Influencing Children's Exposure, and the Data Available to Characterize and Assess That Exposure AN - 17761150; 4821888 AB - We review the factors influencing children's exposure to environmental contaminants and the data available to characterize and assess that exposure. Children's activity pattern data requirements are demonstrated in the context of the algorithms used to estimate exposure by inhalation, dermal contact, and ingestion. Currently, data on children's exposures and activities are insufficient to adequately assess multimedia exposures to environmental contaminants. As a result, regulators use a series of default assumptions and exposure factors when conducting exposure assessments. Data to reduce uncertainty in the assumptions and exposure estimates are needed to ensure chemicals are regulated appropriately to protect children's health. To improve the database, advancement in the following general areas of research is required: identification of appropriate age/developmental benchmarks for categorizing children in exposure assessment; development and improvement of methods for monitoring children's exposures and activities; collection of activity pattern data for children (especially young children) required to assess exposure by all routes; collection of data on concentrations of environmental contaminants, biomarkers, and transfer coefficients that can be used as inputs to aggregate exposure models. JF - Environmental Health Perspectives AU - Hubal, EAC AU - Sheldon, L S AU - Burke, J M AU - McCurdy, T R AU - Berry, M R AU - Rigas, M L AU - Zartarian, V G AU - Freeman, NCG AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory, MD-56, Research Triangle Park, NC 27711, USA, hubal.elaine@epa.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 475 EP - 486 VL - 108 IS - 6 SN - 0091-6765, 0091-6765 KW - man KW - exposure KW - Health & Safety Science Abstracts; Pollution Abstracts; Toxicology Abstracts KW - Inhalation KW - Pollution effects KW - Chemical pollution KW - Skin KW - Ingestion KW - Children KW - Databases KW - Polluted environments KW - X 24240:Miscellaneous KW - H 12000:Epidemiology and Public Health KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17761150?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Health+Perspectives&rft.atitle=Children%27s+Exposure+Assessment%3A+A+Review+of+Factors+Influencing+Children%27s+Exposure%2C+and+the+Data+Available+to+Characterize+and+Assess+That+Exposure&rft.au=Hubal%2C+EAC%3BSheldon%2C+L+S%3BBurke%2C+J+M%3BMcCurdy%2C+T+R%3BBerry%2C+M+R%3BRigas%2C+M+L%3BZartarian%2C+V+G%3BFreeman%2C+NCG&rft.aulast=Hubal&rft.aufirst=EAC&rft.date=2000-06-01&rft.volume=108&rft.issue=6&rft.spage=475&rft.isbn=&rft.btitle=&rft.title=Environmental+Health+Perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Children; Pollution effects; Chemical pollution; Skin; Inhalation; Ingestion; Databases; Polluted environments ER - TY - JOUR T1 - A Modeling Framework for Estimating Children's Residential Exposure and Dose to Chlorpyrifos Via Dermal Residue Contact and Nondietary Ingestion AN - 17757624; 4821892 AB - To help address the Food Quality Protection Act of 1996, a physically based probabilistic model has been developed to quantify and analyze dermal and nondietary ingestion exposure and dose to pesticides. The Residential Stochastic Human Exposure and Dose Simulation Model for Pesticides (Residential-SHEDS) simulates the exposures and doses of children contacting residues on surfaces in treated residences and on turf in treated residential yards. The simulations combine sequential time-location-activity information from children's diaries with microlevel videotaped activity data, probability distributions of measured surface residues and exposure factors, and pharmacokinetic rate constants. Model outputs include individual profiles and population statistics for daily dermal loading, mass in the blood compartment, ingested residue via nondietary objects, and mass of eliminated metabolite, as well as contributions from various routes, pathways, and media. To illustrate the capabilities of the model framework, we applied Residential-SHEDS to estimate children's residential exposure and dose to chlorpyrifos for 12 exposure scenarios: 2 age groups (0-4 and 5-9 years); 2 indoor pesticide application methods (broadcast and crack and crevice); and 3 postindoor application time periods (< 1, 1-7, and 8-30 days). Independent residential turf applications (liquid or granular) were included in each of these scenarios. Despite the current data limitations and model assumptions, the case study predicts exposure and dose estimates that compare well to measurements in the published literature, and provides insights to the relative importance of exposure scenarios and pathways. JF - Environmental Health Perspectives AU - Zartarian, V G AU - Oezkaynak, H AU - Burke, J M AU - Zufall, MJ AU - Rigas, M L AU - Furtaw, EJ Jr AD - Environmental Protection Agency, 12201 Sunrise Valley Drive, 555 National Center, Reston, VA 20192, USA, zartarian.valerie@epamail.epa.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 505 EP - 514 VL - 108 IS - 6 SN - 0091-6765, 0091-6765 KW - man KW - Health & Safety Science Abstracts; Pollution Abstracts; Toxicology Abstracts KW - Pesticide residues KW - Houses KW - Skin KW - Mathematical models KW - Children KW - Chlorpyrifos KW - Residential areas KW - H 5000:Pesticides KW - X 24133:Metabolism KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17757624?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Health+Perspectives&rft.atitle=A+Modeling+Framework+for+Estimating+Children%27s+Residential+Exposure+and+Dose+to+Chlorpyrifos+Via+Dermal+Residue+Contact+and+Nondietary+Ingestion&rft.au=Zartarian%2C+V+G%3BOezkaynak%2C+H%3BBurke%2C+J+M%3BZufall%2C+MJ%3BRigas%2C+M+L%3BFurtaw%2C+EJ+Jr&rft.aulast=Zartarian&rft.aufirst=V&rft.date=2000-06-01&rft.volume=108&rft.issue=6&rft.spage=505&rft.isbn=&rft.btitle=&rft.title=Environmental+Health+Perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Mathematical models; Pesticide residues; Skin; Children; Residential areas; Chlorpyrifos; Houses ER - TY - JOUR T1 - High brevetoxin concentrations in Gymnodinium breve blooms along the northwest Florida coast during 1999 AN - 17693749; 4780244 AB - Blooms of the dinoflagellate Gymnodinium breve (i.e. red tides) produce brevetoxins (PbTx) that negatively impact the Gulf of Mexico ecosystem, human health, and local economies. Characterizing and predicting bloom events and their impacts requires knowledge of G. breve abundance and PbTx concentrations in the water column. We report results from a bloom that occurred during the fall and winter of 1999 in NW Florida coastal waters. Data were collected from 16 stations on 3 sampling dates (29 Sept., 9 Nov., 1 Dec.), including basic hydrography, nutrient concentrations, G. breve abundances, and brevetoxin concentrations. G. breve cells were enumerated using flow cytometry and PbTx's were isolated from seawater using dichloromethane (DCM) partitioning. Brevetoxins were quantified by HPLC-DAD using a C-18 column and an acetonitrile-water gradient elution. Literature estimates of total PbTx concentration (PbTx's 1, 2, 3) of cultured and field-collected G. breve suggest a range in concentration from 7 to 17 pg cell super(-1). We measured total PbTx levels that greatly exceeded these values [Sept., 47-67 pg cell super(-1) (n=5); Nov., 59-126 pg cell super(-1) (n=3), Dec., 12-63 pg cell super(-1) (n=8)]. PbTx-2 was the predominant (67-75%) PbTx isomer found in these blooms. PbTx-1 and PbTx-3 were found at 11-22% and ND-28% of total PbTx, respectively. JF - Journal of Phycology AU - Greene, R M AU - Walker, C C AU - Murrell, M C AU - Kurtz, J C AU - Stanley, R S AU - Genthner, F J AD - Gulf Ecology Division, National Health and Environmental Effects Research Laboratory, United States Environmental Protection Agency, 1 Sabine Island Drive, Gulf Breeze, FL 32561 USA A2 - Millie, DF A2 - Kurgens, P (eds) Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 25 EP - 26 PB - Blackwell Science Ltd., Osney Mead Oxford OX2 0EL UK VL - 36 IS - 3 SN - 0022-3646, 0022-3646 KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - ASW, USA, Florida KW - Algal blooms KW - Gymnodinium breve KW - Red tides KW - Biological poisons KW - Q1 08485:Species interactions: pests and control KW - Q5 08524:Public health, medicines, dangerous organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17693749?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Journal+of+Phycology&rft.atitle=High+brevetoxin+concentrations+in+Gymnodinium+breve+blooms+along+the+northwest+Florida+coast+during+1999&rft.au=Greene%2C+R+M%3BWalker%2C+C+C%3BMurrell%2C+M+C%3BKurtz%2C+J+C%3BStanley%2C+R+S%3BGenthner%2C+F+J&rft.aulast=Greene&rft.aufirst=R&rft.date=2000-06-01&rft.volume=36&rft.issue=3&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Journal+of+Phycology&rft.issn=00223646&rft_id=info:doi/10.1046%2Fj.1529-8817.2000.99059.x LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Abstracts Only. N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Algal blooms; Red tides; Biological poisons; Gymnodinium breve; ASW, USA, Florida DO - http://dx.doi.org/10.1046/j.1529-8817.2000.99059.x ER - TY - JOUR T1 - Relationships between oyster (Crassostrea virginica) defense measurements and tissue contaminants AN - 17686418; 4774232 AB - Bivalve mollusks such as Crassostrea virginica typically inhabit estuaries and coastal areas that are increasingly contaminated with anthropogenic chemicals. Oysters may bioaccumulate large quantities of metals, polyaromatic hydrocarbons (PAHs), and polychlorinated biphenyls (PCBs) without evident ill effects, but various measurements of bivalve defense activity show alterations from experimental chemical exposures and longer-term, field exposure to chemical mixtures. Forty oysters were collected from Bayou Chico and East Bay, two sites in Pensacola Bay, FL, known to differ in the type and magnitude of chemical contaminants. Tissue concentrations of metals, tri- and di-butylin (TBT, DBT), PAHs and PCBs were measured along with hemocyte number, phagocytic (PI) and bactericidal (KI) indices, and serum lysozyme and total protein levels. Hemocyte PI was significantly higher in East Bay oysters, which also had low tissue levels of PAHs, PCBs, TBT, DBT, and the metals Al, Cr, Fe, Ag, Cd, and Hg. Average hemocyte number, KI, serum lysozyme and protein were significantly higher in Bayou Chico oysters which also had high tissue concentrations of organic contaminants, butyltins, and Mn, Cu, Zn, and Sn. Canonical correlation analysis was used to examine relationships between tissue metals and defense measurements using linearly combined sets of variables. The highest possible correlation was positive: r = .934, between canonical variables composed of hemocyte number, PI, serum protein and lysozyme for defense, and Cd, Fe, Al, Pb, Zn, Mn, Sb, Ni, and Cr for metals. This suggestion of heightened defense activities in oysters from metal-contaminated sites is consistent with previous observations. The likelihood of complex relationships between oyster immune measurements and contaminant stress suggests that single chemical exposures and univariate analyses may be inadequate or misleading. JF - Journal of Shellfish Research AU - Oliver, L M AU - Fisher, S W AU - Volety, A K AU - Malaeb, Z AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Gulf Ecology Division, 1 Sabine Island Drive, Gulf Breeze, FL 32561-5299, USA Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 599 EP - 600 PB - National Shellfisheries Association VL - 19 IS - 1 SN - 0730-8000, 0730-8000 KW - Eastern oyster KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - Marine KW - Sediment pollution KW - Bioaccumulation KW - Heavy metals KW - Pollution effects KW - Crassostrea virginica KW - Biomarkers KW - Oyster fisheries KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - Q1 08266:Physiology, biochemistry, biophysics KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17686418?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Shellfish+Research&rft.atitle=Relationships+between+oyster+%28Crassostrea+virginica%29+defense+measurements+and+tissue+contaminants&rft.au=Oliver%2C+L+M%3BFisher%2C+S+W%3BVolety%2C+A+K%3BMalaeb%2C+Z&rft.aulast=Oliver&rft.aufirst=L&rft.date=2000-06-01&rft.volume=19&rft.issue=1&rft.spage=599&rft.isbn=&rft.btitle=&rft.title=Journal+of+Shellfish+Research&rft.issn=07308000&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Bioaccumulation; Heavy metals; Pollution effects; Biomarkers; Oyster fisheries; Crassostrea virginica; Marine ER - TY - JOUR T1 - Mapping and monitoring of submerged aquatic vegetation in Escambia-Pensacola Bay System, Florida AN - 17670824; 4762242 AB - Recently, the distribution and changes in submerged aquatic vegetation (SAV) in the Escambia-Pensacola Bay System in northestern Florida were monitored by two techniques. One technique used divers to measure changes in the deepwater margin of beds and provided horizontal growth measurements to the nearest centimeter, the other used a differential global positioning system (DGPS) on a small boat to map the perimeter of SAV beds in shallow water. Current distribution of SAV in Escambia Bay shows that most of the SAV losses that occurred during the 1950s to 1970s have been recovered. In Santa Rosa Sound and Pensacola Bay, SAV showed significant increased growth with horizontal growth rates of some beds averaging more than 50 cm over the past year. In Big Lagoon, however, SAV has declined an average of 10 cm in horizontal coverage along the deepwater edge. Water quality and photosynthetically active radiation light measurements from the Escambia-Pensacola Bay System suggest that increased light availability was associated with the increased seagrass coverage in Santa Rosa Sound and Pensacola Bay, and elevated nutrient concentrations were associated with the seagrass declines in Big Lagoon. JF - Gulf of Mexico Science AU - Lores, E M AU - Pasko, E AU - Patrick, J M AU - Quarles, R L AU - Campbell, J AU - Macauley, J AD - U.S. Environmental Protection Agency, Gulf Ecology Division, 1 Sabine Island Drive, Gulf Breeze, FL 32561, USA Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 1 EP - 14 VL - 18 IS - 1 SN - 1087-688X, 1087-688X KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Oceanic Abstracts KW - Environmental monitoring KW - Marine KW - Coastal zone KW - Phytobenthos KW - ASW, USA, Florida, Santa Rosa Sound KW - Eutrophication KW - Mapping KW - Seaweeds KW - ASW, USA, Florida, Pensacola Bay KW - Q1 08462:Benthos KW - O 6060:Coastal Zone Resources and Management KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17670824?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Gulf+of+Mexico+Science&rft.atitle=Mapping+and+monitoring+of+submerged+aquatic+vegetation+in+Escambia-Pensacola+Bay+System%2C+Florida&rft.au=Lores%2C+E+M%3BPasko%2C+E%3BPatrick%2C+J+M%3BQuarles%2C+R+L%3BCampbell%2C+J%3BMacauley%2C+J&rft.aulast=Lores&rft.aufirst=E&rft.date=2000-06-01&rft.volume=18&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Gulf+of+Mexico+Science&rft.issn=1087688X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Phytobenthos; Coastal zone; Eutrophication; Mapping; Seaweeds; ASW, USA, Florida, Santa Rosa Sound; ASW, USA, Florida, Pensacola Bay; Marine ER - TY - JOUR T1 - Ecological effects, transport, and fate of mercury: a general review AN - 17666937; 4739352 AB - Mercury at low concentrations represents a major hazard to microorganisms. Inorganic mercury has been reported to produce harmful effects at 5 mu g/l in a culture medium. Organomercury compounds can exert the same effect at concentrations 10 times lower than this. The organic forms of mercury are generally more toxic to aquatic organisms and birds than the inorganic forms. Aquatic plants are affected by mercury in water at concentrations of 1 mg/l for inorganic mercury and at much lower concentrations of organic mercury. Aquatic invertebrates widely vary in their susceptibility to mercury. In general, organisms in the larval stage are most sensitive. Methyl mercury in fish is caused by bacterial methylation of inorganic mercury, either in the environment or in bacteria associated with fish gills or gut. In aquatic matrices, mercury toxicity is affected by temperature, salinity, dissolved oxygen and water hardness. A wide variety of physiological, reproductive and biochemical abnormalities have been reported in fish exposed to sublethal concentrations of mercury. Birds fed inorganic mercury show a reduction in food intake and consequent poor growth. Other (more subtle) effects in avian receptors have been reported (i.e., increased enzyme production, decreased cardiovascular function, blood parameter changes, immune response, kidney function and structure, and behavioral changes). The form of retained mercury in birds is more variable and depends on species, target organ and geographical site. With few exceptions, terrestrial plants (woody plants in particular) are generally insensitive to the harmful effects of mercury compounds. JF - Chemosphere AU - Boening, D W AD - Lockheed Martin Environmental Services Assistance Team, 7411 Beach Drive East, Port Orchard, WA 98366, USA, boening.dean@epamail.epa.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 1335 EP - 1351 VL - 40 IS - 12 SN - 0045-6535, 0045-6535 KW - Bacteria KW - Birds KW - dimethylmercury KW - Toxicology Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Aquatic organisms KW - Pollution dispersion KW - Pollution effects KW - Dissolved oxygen KW - Pisces KW - Salinity KW - Salinity effects KW - Invertebrata KW - Organometallic complexes KW - Temperature effects KW - Methylmercury KW - Methyl mercury KW - Plantae KW - Temperature KW - Toxicity KW - Aquatic ecosystems KW - Aves KW - Literature reviews KW - Water hardness KW - Sublethal effects KW - Reviews KW - Microorganisms KW - Mercury KW - Aquatic birds KW - P 9000:ENVIRONMENTAL ACTION KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - X 24166:Environmental impact KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17666937?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere&rft.atitle=Ecological+effects%2C+transport%2C+and+fate+of+mercury%3A+a+general+review&rft.au=Boening%2C+D+W&rft.aulast=Boening&rft.aufirst=D&rft.date=2000-06-01&rft.volume=40&rft.issue=12&rft.spage=1335&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=00456535&rft_id=info:doi/10.1016%2FS0045-6535%2899%2900283-0 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Temperature effects; Methyl mercury; Aquatic organisms; Pollution dispersion; Pollution effects; Toxicity; Dissolved oxygen; Literature reviews; Sublethal effects; Water hardness; Salinity effects; Mercury; Organometallic complexes; Reviews; Aquatic ecosystems; Aves; Methylmercury; Salinity; Temperature; Microorganisms; Invertebrata; Aquatic birds; Pisces; Bacteria; Plantae DO - http://dx.doi.org/10.1016/S0045-6535(99)00283-0 ER - TY - JOUR T1 - Parallels between Attention Deficit Hyperactivity Disorder and Behavioral Deficits Produced by Neurotoxic Exposure in Monkeys AN - 17665891; 4746064 AB - Attention deficit hyperactivity disorder (ADHD) is a disability that affects between 3 and 7% of children, with a significant number of individuals continuing to be affected into adolescence and adulthood. ADHD is characterized in part by an inability to organize complex sequences of behavior, to persist in the face of distracting stimuli, and to respond appropriately to the consequences of past behavior. There are some parallels between the features of ADHD and the behavior of monkeys exposed developmentally to lead or polychlorinated biphenyls (PCBs), as evidenced by research from our laboratory. Both lead and PCB exposure produce deficits on discrimination reversal and spatial delayed alternation performance; treated monkeys exhibit deficits in their ability to change an already established response strategy and inhibit inappropriate responses. Monkeys exposed developmentally to lead or PCBs also perform differently from control monkeys on a fixed interval schedule of reinforcement, which requires the temporal organization of behavior using only internal cues. Whereas the etiology of ADHD is multifactorial, the possibility that neurotoxic agents in the environment contribute to the incidence of ADHD warrants attention. JF - Environmental Health Perspectives AU - Rice, D C AD - EPA/NCEA, MC 8623 D, Washington, DC 20460, USA, rice.deborah@epa.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 405 EP - 408 VL - 108 SN - 0091-6765, 0091-6765 KW - monkeys KW - Toxicology Abstracts; CSA Neurosciences Abstracts KW - Heavy metals KW - Children KW - Lead KW - Behavior KW - Neurotoxins KW - Attention KW - PCB KW - Hyperactivity KW - X 24240:Miscellaneous KW - N3 11105:Primates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17665891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Health+Perspectives&rft.atitle=Parallels+between+Attention+Deficit+Hyperactivity+Disorder+and+Behavioral+Deficits+Produced+by+Neurotoxic+Exposure+in+Monkeys&rft.au=Rice%2C+D+C&rft.aulast=Rice&rft.aufirst=D&rft.date=2000-06-01&rft.volume=108&rft.issue=&rft.spage=405&rft.isbn=&rft.btitle=&rft.title=Environmental+Health+Perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Neurotoxins; Attention; Hyperactivity; Children; Behavior; Lead; PCB; Heavy metals ER - TY - JOUR T1 - Riverine endosulfan concentrations in the Namoi River, Australia: Link to cotton field runoff and macroinvertebrate population densities AN - 17663980; 4739397 AB - Population densities of six dominant macroinvertebrate taxa (mayfly nymphs Jappa kutera, Atalophlebia sp., Tasmanocoenis sp., Baetis sp. and the caddisfly larvae Cheumatopsyche sp. and Ecnomus sp.) were negatively correlated to total endosulfan concentrations in the Namoi River (New South Wales, Australia) in the 1995/96 and 1997/98 cotton growing seasons (November-March). Total endosulfan concentrations measured in solvent-filled polyethylene bags (passive samplers) at the exposed sites correlated with rainfall, suggesting that endosulfan entered the riverine environment in runoff from land. At the start of both surveys, in November 1995 and November 1997, there was no significant difference (p < 0.05) between the reference and exposed sites for both total endosulfan concentrations and mean population densities of the combined study taxa. This indicates distance down-stream, which was negatively correlated with exposure, was not an important variable in explaining the significantly higher population densities in other months at the reference sites compared with those at sites subsequently exposed to increased (10-25-fold) total endosulfan concentrations. The multivariate analysis of the 1997/98 data with the principal response curves (PRC) method indicated that endosulfan explained a significant proportion (25%) of the variation in the total macroinvertebrate community. Principal components analysis (PCA) indicated other covariables were involved, including river discharge. River discharge was positively correlated to increased densities of the mayfly taxa at the reference sites in the 1995/96 survey, but these correlations were reduced to near zero, except for Baetis sp., in the 1997/98 survey. JF - Environmental Toxicology and Chemistry AU - Leonard, A W AU - Hyne, R V AU - Lim, R P AU - Pablo, F AU - Van den Brink, PJ AD - Ecotoxicology Section, Environment Protection Authority, New South Wales, Centre for Ecotoxicology, Westbourne Street, Gore Hill, NSW 2065, Australia, hyner@epa.nsw.gov.au Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 1540 EP - 1551 VL - 19 IS - 6 SN - 0730-7268, 0730-7268 KW - Australia, New South Wales KW - Australia, New South Wales, Namoi R. KW - Baetis KW - Caddisflies KW - Cheumatopsyche KW - Ecnomus KW - Jappa kutera KW - Mayflies KW - Tasmanocoenis KW - endosulfan KW - Sustainability Science Abstracts; Water Resources Abstracts; Pollution Abstracts; Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Human Population; Entomology Abstracts; Ecology Abstracts KW - Aquatic organisms KW - Agricultural pollution KW - Atalophlebia KW - Population density KW - Pollution effects KW - Pesticide applications KW - Insecticides KW - Ephemeroptera KW - Multivariate analysis KW - Invertebrata KW - Agricultural runoff KW - Trichoptera KW - Freshwater pollution KW - Rivers KW - Macrofauna KW - Gossypium hirsutum KW - Endosulfan KW - Pesticides KW - Runoff KW - Population number KW - M1 200:Human Population-Biosphere Interactions KW - D 04803:Pollution effects KW - M3 1010:Issues in Sustainable Development KW - P 2000:FRESHWATER POLLUTION KW - Z 05210:Aquatic entomology KW - Q5 08504:Effects on organisms KW - X 24136:Environmental impact UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17663980?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Riverine+endosulfan+concentrations+in+the+Namoi+River%2C+Australia%3A+Link+to+cotton+field+runoff+and+macroinvertebrate+population+densities&rft.au=Leonard%2C+A+W%3BHyne%2C+R+V%3BLim%2C+R+P%3BPablo%2C+F%3BVan+den+Brink%2C+PJ&rft.aulast=Leonard&rft.aufirst=A&rft.date=2000-06-01&rft.volume=19&rft.issue=6&rft.spage=1540&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Agricultural pollution; Pesticides; Population density; Pollution effects; Agricultural runoff; Population number; Rivers; Aquatic organisms; Multivariate analysis; Macrofauna; Runoff; Pesticide applications; Freshwater pollution; Endosulfan; Insecticides; Invertebrata; Ephemeroptera; Atalophlebia; Trichoptera; Gossypium hirsutum ER - TY - JOUR T1 - Protecting the Nation's Critical Infrastructure: The Vulnerability of U.S. Water Supply Systems AN - 17658017; 4720797 AB - Terrorism in the United States was not considered a serious threat until the second half of the 1990s. However, recent attacks both at home and abroad have forced government planners to consider the possibility that critical elements of the U.S. infrastructure might in fact be vulnerable to terrorism. The potential for chemical or biological contamination of water supply systems exists along with the possibility that such systems might be sabotaged. This article reviews the threat of biological and chemical compounds in relation to the characteristics of water supply systems. Vulnerability of such systems to terrorist attacks is examined, as well as possible physical and chemical countermeasures that could be applied. A case study is presented of an accidental contamination event that illustrates the difficulty of tracking such events in a drinking water system. It can be concluded that municipal water supplies are vulnerable. However, appropriate physical planning of such systems, including contingency back-up with separate water lines for emergencies, coupled with proactive monitoring, will significantly increase security in the face of possible terrorist attacks. JF - Journal of Contingencies and Crisis Management AU - Clark, R M AU - Deininger, R A AD - Water Supply and Water Resources Division, NRMRL, U.S. Environmental Protection Agency, Cincinnati, OH 45268, USA, Clark.Robertm@epamail.ep.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 73 EP - 80 VL - 8 IS - 2 SN - 0966-0879, 0966-0879 KW - USA KW - terrorism KW - Water Resources Abstracts; Aqualine Abstracts KW - Water supplies (Potable) KW - Drinking Water KW - Municipal Water KW - Contamination KW - Water Conveyance KW - Water Supply KW - Contamination (see also Pollution) KW - Terrorist KW - Water supply systems KW - Water resources planning KW - Water Resources KW - AQ 00001:Water Resources and Supplies KW - SW 4010:Techniques of planning UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17658017?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contingencies+and+Crisis+Management&rft.atitle=Protecting+the+Nation%27s+Critical+Infrastructure%3A+The+Vulnerability+of+U.S.+Water+Supply+Systems&rft.au=Clark%2C+R+M%3BDeininger%2C+R+A&rft.aulast=Clark&rft.aufirst=R&rft.date=2000-06-01&rft.volume=8&rft.issue=2&rft.spage=73&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contingencies+and+Crisis+Management&rft.issn=09660879&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Water supplies (Potable); Contamination (see also Pollution); Terrorist; Water supply systems; Water resources planning; Drinking Water; Contamination; Municipal Water; Water Conveyance; Water Supply; Water Resources ER - TY - JOUR T1 - Ozone uptake in the intact human respiratory tract: relationship between inhaled dose and actual dose AN - 17639008; 4778376 AB - Inhaled concentration (C), minute volume (MV), and exposure duration (T) are factors that may affect the uptake of ozone (O sub(3)) within the respiratory tract. Ten healthy adult nonsmokers participated in four sessions, inhaling 0.2 or 0.4 ppm O sub(3) through an oral mask while exercising continuously to elicit a MV of 20 l/min for 60 min or 40 l/min for 30 min. In each session, fractional absorption (FA) was determined on a breath-by-breath basis as the ratio of O sub(3) uptake to the inhaled O sub(3) dose. The mean plus or minus SD value of FA for all breaths was 0.86 plus or minus 0.06. Although C, MV, and T all had statistically significant effects on FA (P < 0.0001, P = 0.004, and P = 0.026, respectively), the magnitudes of these effects were small compared with intersubject variability. For an average subject, a 0.05 change in FA would require that C change by 1.3 ppm, MV change by 46 l/mm, or T change by 1.7 h. It is concluded that inhaled dose is a reasonable surrogate for the actual dose delivered to a particular subject during O sub(3) exposures of <2 h, but it is not a reasonable surrogate when comparisons are made between individuals. JF - Journal of Applied Physiology AU - Rigas, M L AU - Catlin, S N AU - Ben-Jebria, A AU - Ultman, J S AD - National Exposure Research Laboratory, U.S. EPA, Las Vegas 89193-3478, USA Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 2015 EP - 2022 VL - 88 IS - 6 SN - 8750-7587, 8750-7587 KW - normal subjects KW - man KW - Toxicology Abstracts KW - Inhalation KW - Respiratory tract KW - Ozone KW - X 24240:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17639008?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Physiology&rft.atitle=Ozone+uptake+in+the+intact+human+respiratory+tract%3A+relationship+between+inhaled+dose+and+actual+dose&rft.au=Rigas%2C+M+L%3BCatlin%2C+S+N%3BBen-Jebria%2C+A%3BUltman%2C+J+S&rft.aulast=Rigas&rft.aufirst=M&rft.date=2000-06-01&rft.volume=88&rft.issue=6&rft.spage=2015&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Physiology&rft.issn=87507587&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ozone; Respiratory tract; Inhalation ER - TY - JOUR T1 - Avoiding pitfalls in the determination of halocarboxylic acids: the photochemistry of methylation AN - 17608514; 4741013 AB - Haloethanoic (haloacetic) acids are formed during chlorination of drinking water and are regulated by the Environmental Protection Agency (EPA). These compounds are normally quantified by gas chromatography with electron capture detection (GC-ECD) as the methyl esters. EPA Method 552 uses diazomethane (CH sub(2)N sub(2)) for this purpose, but has only been validated by EPA for HAA6: chloro-, dichloro-, bromo-, dibromo-, bromochloro- and trichloroacetic acids. EPA Method 552.2 was developed and validated for all nine analytes (HAA9 = HAA6 + dibromochloro-, bromodichloro- and tribromoethanoic acids). Since the promulgation of Method 552.2, which uses acidic methanol, a debate has ensued over discrepancies observed by various laboratories when using diazomethane instead. In an effort to identify and eliminate potential sources for these discrepancies, a comparative study was undertaken for HAA9. Better accuracy and precision were observed for all HAA9 species by Method 552.2; recoveries were satisfactory in de-ionized and tap water. Method 552 remains satisfactory for HAA6. Systematic differences in instrumental response are observed for the two methods, but these are precise and may be accounted for using similarly treated standards and analyte-fortified (spiked) samples. That notwithstanding, Method 552 (CH sub(2)N sub(2)) was shown to be unsuitable for dibromochloro-, bromodichloro- and tribromoethanoic acids (HAA9-6). The primary problem appears to be a photoactivated reaction between diazomethane and the HAA9-6 analytes; however, side reactions were found to occur even in the dark. Analyte loss is most pronounced under typical laboratory lighting (white F40 fluorescent lamps + sunlight), but it is also observed under Philips gold F40 lamps ( lambda greater than or equal to 520 nm), and in the dark. JF - Journal of Environmental Monitoring AU - Rubio, F J AU - Urbansky, E T AU - Magnuson, M L AD - United States Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Water Supply and Water Resources Division, Cincinnati OH 45268, USA, urbansky.edward@epa.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 248 EP - 252 VL - 2 IS - 3 SN - 1464-0325, 1464-0325 KW - diazomethane KW - halocarboxylic acids KW - Pollution Abstracts KW - Photochemistry KW - Water sampling KW - EPA KW - Laboratory methods KW - Chlorination KW - Drinking water KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17608514?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Monitoring&rft.atitle=Avoiding+pitfalls+in+the+determination+of+halocarboxylic+acids%3A+the+photochemistry+of+methylation&rft.au=Rubio%2C+F+J%3BUrbansky%2C+E+T%3BMagnuson%2C+M+L&rft.aulast=Rubio&rft.aufirst=F&rft.date=2000-06-01&rft.volume=2&rft.issue=3&rft.spage=248&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Monitoring&rft.issn=14640325&rft_id=info:doi/10.1039%2Fb000674m LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Drinking water; Water sampling; Chlorination; Photochemistry; EPA; Laboratory methods DO - http://dx.doi.org/10.1039/b000674m ER - TY - JOUR T1 - Estimating population size in the banner-tailed kangaroo rat AN - 17607771; 4752875 AB - Mark-recapture population estimates from censuses of banner-tailed kangaroo rats (Dipodomys spectabilis) at two study sites in southeastern Arizona were compared to results of direct enumeration. We wished to assess the validity of direct enumeration for this species, and to compare the ease of use and concordance of this approach to determining population size with various closed-population estimators from program CAPTURE. Probabilities of capture of kangaroo rats were high at both study sites. Estimates based on trapping at mounds were all highly correlated with direct enumeration estimates after 3 nights of trapping. Adding a fourth night's trapping changed population estimates little for adults, but increased the estimated number of juveniles. In contrast, estimates based on a trapping grid substantially underestimated the number of animals known to be alive, suggesting that trapping on a grid is an inefficient means of assessing population size for these rodents. Saturation trapping around inhabited mounds is the preferred method for this species, and direct enumeration, a 2-night Lincoln-Petersen index, or even a quick count of active mounds provide precise indices of population size. JF - Southwestern Naturalist AU - Cross, CL AU - Waser, P M AD - United States Environmental Protection Agency, National Exposure Research Laboratory, Landscape Ecology Branch, P.O. Box 93478, Las Vegas, NV 89119-3478, USA Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 176 EP - 183 VL - 45 IS - 2 SN - 0038-4909, 0038-4909 KW - Banner-tailed kangaroo rat KW - Ecology Abstracts KW - Marking and tracking techniques KW - Dipodomys spectabilis KW - Population levels KW - D 04001:Methodology - general KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17607771?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Southwestern+Naturalist&rft.atitle=Estimating+population+size+in+the+banner-tailed+kangaroo+rat&rft.au=Cross%2C+CL%3BWaser%2C+P+M&rft.aulast=Cross&rft.aufirst=CL&rft.date=2000-06-01&rft.volume=45&rft.issue=2&rft.spage=176&rft.isbn=&rft.btitle=&rft.title=Southwestern+Naturalist&rft.issn=00384909&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Dipodomys spectabilis; Population levels; Marking and tracking techniques ER - TY - JOUR T1 - Performance of a Constructed Wetlands in Treating Urban Stormwater Runoff AN - 17603534; 4737983 AB - An investigation was conducted on the pollutant removal performance of a constructed wetlands treating stormwater runoff from a residential townhome complex in northern Virginia. Constituent event mean concentrations for 33 runoff events between April 1996 and May 1997 were measured based on flow-weighted composite samples collected at the facility's inlet and outlet. With the results from a limited number of grab samples representing ungauged overland drainage from an adjacent wooded area, estimated removals were positive for most constituents and typically exceeded those obtained at a nearby companion wetland study site, consistent with expectations based on the relative ratios of wetland area to drainage area at the two sites. Median load removals of all constituents were greater for a subset of 22 storms that had inflow volumes less than the maximum volume of the marsh. Orthophosphate phosphorus and ammonia removals were significantly better during spring of 1996 than spring of 1997. Lysimeter data suggest a possible explanation for this, which is development of anaerobic conditions in the shallow sediments in 1997. Outlet concentrations of oxidized nitrogen were consistently lower in base flow than in storm samples, suggesting that removal of this constituent occurred primarily between, rather than during, storm events. JF - Water Environment Research AU - Carleton, J N AU - Grizzard, T J AU - Godrej, AN AU - Post, HE AU - Lampe, L AU - Kenel, P P AD - U.S. Environmental Protection Agency, Mail Code 7507C, Washington, D.C., 20460, USA Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 295 EP - 304 VL - 72 IS - 3 SN - 1061-4303, 1061-4303 KW - USA, Virginia KW - Pollution Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Storm Runoff KW - Phosphorus KW - Freshwater KW - Artificial Wetlands KW - Wastewater treatment KW - Phosphorus removal KW - Urban runoff KW - Pollutants KW - Water treatment KW - Stormwater runoff KW - Water Treatment KW - Wetlands KW - Pollutant removal KW - Ammonia KW - Anoxic sediments KW - Oxic sediments KW - Residential areas KW - Urban Runoff KW - Phosphorus Removal KW - Pollution control KW - Nitrogen KW - SW 3040:Wastewater treatment processes KW - P 2000:FRESHWATER POLLUTION KW - Q5 08505:Prevention and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17603534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Environment+Research&rft.atitle=Performance+of+a+Constructed+Wetlands+in+Treating+Urban+Stormwater+Runoff&rft.au=Carleton%2C+J+N%3BGrizzard%2C+T+J%3BGodrej%2C+AN%3BPost%2C+HE%3BLampe%2C+L%3BKenel%2C+P+P&rft.aulast=Carleton&rft.aufirst=J&rft.date=2000-06-01&rft.volume=72&rft.issue=3&rft.spage=295&rft.isbn=&rft.btitle=&rft.title=Water+Environment+Research&rft.issn=10614303&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Anoxic sediments; Urban runoff; Oxic sediments; Stormwater runoff; Phosphorus; Wetlands; Wastewater treatment; Nitrogen; Pollution control; Phosphorus removal; Pollutant removal; Water treatment; Ammonia; Residential areas; Pollutants; Storm Runoff; Water Treatment; Urban Runoff; Phosphorus Removal; Artificial Wetlands; Freshwater ER - TY - JOUR T1 - A Probabilistic Method for Estimating Monitoring Point Density for Containment System Leak Detection AN - 17602185; 4737273 AB - The use of physical and hydraulic containment systems for the isolation of contaminated ground water and aquifer materials associated with hazardous waste sites has increased during the last decade. The existing methodologies for monitoring and evaluating leakage from hazardous waste containment systems rely primarily on limited hydraulic head data. The number of hydraulic head monitoring points available at most sites employing physical containment systems may be insufficient to identify significant leaks from the systems. A probabilistic approach for evaluating the performance of containment systems, based on estimations of apparent leakage rates, is used to introduce a methodology for determining the minimum number of monitoring points necessary to identify the hydraulic signature of leakage from a containment system. The probabilistic method is based on the principles of geometric probability. The method is demonstrated using three-dimensional ground water flow modeling results of leakage through a vertical barrier. The results indicate that the monitoring point spacing used at many hazardous waste sites likely is inadequate to detect the hydraulic signatures of all but the largest leaks. JF - Ground Water AU - Ross, R R AU - Vieux, B E AD - U.S. EPA, Office of Research and Development, National Risk Management Research Laboratory, Subsurface Protection and Remediation Division, P.O. Box 1198, Ada, OK 74820, USA Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 533 EP - 540 VL - 38 IS - 4 SN - 0017-467X, 0017-467X KW - Aqualine Abstracts; Water Resources Abstracts KW - Hydraulics KW - Leakage KW - Barriers KW - Density KW - Estimating KW - Groundwater flow KW - Density (see also Low-density) KW - Waste Storage KW - Probabilistic Process KW - Performance Evaluation KW - Hazardous materials KW - Hazardous Materials KW - Monitoring KW - Groundwater Movement KW - Hydraulic Properties KW - SW 5040:Data acquisition KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17602185?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=A+Probabilistic+Method+for+Estimating+Monitoring+Point+Density+for+Containment+System+Leak+Detection&rft.au=Ross%2C+R+R%3BVieux%2C+B+E&rft.aulast=Ross&rft.aufirst=R&rft.date=2000-06-01&rft.volume=38&rft.issue=4&rft.spage=533&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Probabilistic Process; Monitoring; Barriers; Leakage; Estimating; Density; Groundwater Movement; Hydraulic Properties; Hazardous Materials; Performance Evaluation; Waste Storage; Density (see also Low-density); Groundwater flow; Hydraulics; Hazardous materials ER - TY - JOUR T1 - Ozone-scavenging reagents suitable for use in the quantitative determination of aldehydes as the O-(2,3,4,5,6-pentafluorobenzyl) oximes by GC-ECD AN - 17597991; 4733539 AB - Previously, we reported interference due to several ozone-scavenging reagents (OSRs) in the quantitation of aldehydes using O-(2,3,4,5,6-pentafluorobenzyl)oxylamine (PFBOA) in the analysis of ozonated waters. Scavenging ozone is essential if ozonation byproduct concentrations are to be fixed in time, which is required in a study of formation as a function of time; otherwise, additional redox reactions can take place prior to analysis. We have since determined that triphenylphosphine and indigo-5,5',7-trisulfonate can be satisfactory OSRs. Both PPh sub(3) and indigo-5,5',7-trisulfonate react rapidly with ozone, i.e., within 10 s. Triphenylphosphine is insoluble in water and must be dissolved in an appropriate organic solvent (e.g., benzene) that can be dispersed into the sample. When PFBOA is added directly, several minutes must elapse to completely scavenge the ozone, making this approach unsatisfactory. Procedures for using these OSRs are described, and quantitative results are explained. Although PPh sub(3) and indigo-5,5',7-trisulfonate produce deviations relative to controls devoid of OSRs, the biases are precise and therefore readily corrected for by subjecting calibration standards and analyte-fortified (spiked) samples to the same analytical procedure. JF - Water Research AU - Urbansky, E T AU - Freeman, D M AU - Elovitz AD - United States Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Water Supply and Water Resources Division, Cincinnati, OH 45268, USA, Urbansky.Edward@EPA.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 2610 EP - 2613 VL - 34 IS - 9 SN - 0043-1354, 0043-1354 KW - Aqualine Abstracts; Water Resources Abstracts KW - Chemical analysis (see also Individual techniques) KW - Reagents KW - Calibration KW - Calibrations KW - Analytical Methods KW - Standards KW - Quantitative Analysis KW - Organic compounds KW - Organic Compounds KW - Ozone KW - SW 5010:Network design KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17597991?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Research&rft.atitle=Ozone-scavenging+reagents+suitable+for+use+in+the+quantitative+determination+of+aldehydes+as+the+O-%282%2C3%2C4%2C5%2C6-pentafluorobenzyl%29+oximes+by+GC-ECD&rft.au=Urbansky%2C+E+T%3BFreeman%2C+D+M%3BElovitz&rft.aulast=Urbansky&rft.aufirst=E&rft.date=2000-06-01&rft.volume=34&rft.issue=9&rft.spage=2610&rft.isbn=&rft.btitle=&rft.title=Water+Research&rft.issn=00431354&rft_id=info:doi/10.1016%2FS0043-1354%2800%2900171-8 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ozone; Organic Compounds; Analytical Methods; Quantitative Analysis; Standards; Calibrations; Reagents; Organic compounds; Chemical analysis (see also Individual techniques); Calibration DO - http://dx.doi.org/10.1016/S0043-1354(00)00171-8 ER - TY - JOUR T1 - Depletion of Cellular Protein Thiols as an Indicator of Arylation in Isolated Trout Hepatocytes Exposed to 1,4-Benzoquinone AN - 17559211; 4746355 AB - A method to measure protein thiols (PrSH), reduced and oxidized, was adapted to determine PrSH depletion in isolated rainbow trout hepatocytes exposed to arylating agent 1,4-benzoquinone (BQ). Toxicant analysis revealed rapid conversion of BQ to 1,4-hydroquinone (HQ) upon addition to hepatocytes. Hepatocytes exposed to 200 mu M BQ+HQ showed 80% decline in glutathione (GSH) (1 h), 30% loss of PrSH (6 h), and no loss of viability (24 h). Recoverable oxidized PrSH was detected only after 24 h (200 mu M BQ+HQ). Exposure to 600 mu M BQ+HQ caused rapid (10 min) loss of > 90% GSH and > 60% PrSH, with eventual cell death. Half of the PrSH depletion at 6 h observed in hepatocytes exposed to 600 mu M BQ+HQ was recoverable by reduction with dithiothreitol. Following the loss of GSH in hepatocytes exposed to 600 mu M BQ+HQ, cellular PrSH were susceptible to direct arylation and oxidation. Rainbow trout hepatocytes, which contained 10-fold less GSH than rat cells, had a GSH:PrSH ratio of 1:82 compared with rat ratios of 1:2 to 1:6. The methods reported are useful for further study and discrimination of reactive modes of action needed for prediction of aquatic organism susceptibility to these types of toxicants. JF - Toxicological Sciences AU - Tapper, MA AU - Sheedy, B R AU - Hammermeister, DE AU - Schmieder, P K AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Laboratory, Mid-Continent Ecology Division, Duluth, MN 55804, USA Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 327 EP - 334 VL - 55 IS - 2 SN - 1096-6080, 1096-6080 KW - Rainbow trout KW - arylation KW - protein thiols KW - quinone KW - Toxicology Abstracts KW - Hepatocytes KW - Oncorhynchus mykiss KW - Toxicity testing KW - X 24221:Toxicity testing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17559211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Depletion+of+Cellular+Protein+Thiols+as+an+Indicator+of+Arylation+in+Isolated+Trout+Hepatocytes+Exposed+to+1%2C4-Benzoquinone&rft.au=Tapper%2C+MA%3BSheedy%2C+B+R%3BHammermeister%2C+DE%3BSchmieder%2C+P+K&rft.aulast=Tapper&rft.aufirst=MA&rft.date=2000-06-01&rft.volume=55&rft.issue=2&rft.spage=327&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Oncorhynchus mykiss; Toxicity testing; Hepatocytes ER - TY - JOUR T1 - Quantification of siderophore and hemolysin from Stachybotrys chartarum strains, including a strain isolated from the lung of a child with pulmonary hemorrhage and hemosiderosis AN - 17549667; 4734193 AB - A strain of Stachybotrys chartarum was recently isolated from the lung of a pulmonary hemorrhage and hemosiderosis (PH) patient in Texas (designated the Houston strain). This is the first time that S. chartarum has been isolated from the lung of a PH patient. In this study, the Houston strain and 10 strains of S. chartarum isolated from case (n = 5) or control (n = 5) homes in Cleveland were analyzed for hemolytic activity, siderophore production, and relatedness as measured by random amplified polymorphic DNA analysis. JF - Applied and Environmental Microbiology AU - Vesper, S J AU - Dearborn, D G AU - Elidemir, O AU - Haugland, R A AD - U.S. EPA, 26 W. M. L. King Dr., M.L. 314, Cincinnati, OH 45268, USA, Vesper.Stephen@EPA.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 2678 EP - 2681 VL - 66 IS - 6 SN - 0099-2240, 0099-2240 KW - USA, Ohio KW - USA, Texas KW - Toxicology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Stachybotrys chartarum KW - Hemorrhage KW - Random amplified polymorphic DNA KW - Siderophores KW - Hemosiderosis KW - Lung KW - DNA KW - Hemolysins KW - K 03087:Fungi: human KW - K 03040:Fungi KW - X 24171:Microbial UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17549667?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Quantification+of+siderophore+and+hemolysin+from+Stachybotrys+chartarum+strains%2C+including+a+strain+isolated+from+the+lung+of+a+child+with+pulmonary+hemorrhage+and+hemosiderosis&rft.au=Vesper%2C+S+J%3BDearborn%2C+D+G%3BElidemir%2C+O%3BHaugland%2C+R+A&rft.aulast=Vesper&rft.aufirst=S&rft.date=2000-06-01&rft.volume=66&rft.issue=6&rft.spage=2678&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/10.1128%2FAEM.66.6.2678-2681.2000 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Stachybotrys chartarum; Random amplified polymorphic DNA; Siderophores; Hemolysins; DNA; Lung; Hemorrhage; Hemosiderosis DO - http://dx.doi.org/10.1128/AEM.66.6.2678-2681.2000 ER - TY - JOUR T1 - trans-o-Hydroxybenzylidenepyruvate hydratase-aldolase as a biocatalyst AN - 17547978; 4734190 AB - The hydratase-aldolase-catalyzed conversion of trans-o-hydroxybenzylidenepyruvate to salicylaldehyde and pyruvate is an intermediate reaction in the conversion of naphthalene to salicylate by bacteria. Here, a variety of aromatic aldehydes and some nonaromatic aldehydes together with pyruvate have been shown to be substrates for aldol condensations catalyzed by this enzyme in extracts of the recombinant strain Escherichia coli JM109(pRE701). Some of the products of these reactions were also compared as substrates in the opposite (hydration-aldol cleavage) reaction. JF - Applied and Environmental Microbiology AU - Eaton, R W AD - Gulf Ecology Division, NHEERL, U.S. Environmental Protection Agency, 1 Sabine Island Dr., Gulf Breeze, FL 32561, USA, eaton.richard@epa.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 2668 EP - 2672 VL - 66 IS - 6 SN - 0099-2240, 0099-2240 KW - Salicylaldehyde KW - pyruvic acid KW - trans-o-Hydroxybenzylidenepyruvate hydratase-aldolase KW - Microbiology Abstracts B: Bacteriology KW - Escherichia coli KW - Substrate specificity KW - Enzymes KW - Condensation KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17547978?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=trans-o-Hydroxybenzylidenepyruvate+hydratase-aldolase+as+a+biocatalyst&rft.au=Eaton%2C+R+W&rft.aulast=Eaton&rft.aufirst=R&rft.date=2000-06-01&rft.volume=66&rft.issue=6&rft.spage=2668&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/10.1128%2FAEM.66.6.2668-2672.2000 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Escherichia coli; Enzymes; Substrate specificity; Condensation DO - http://dx.doi.org/10.1128/AEM.66.6.2668-2672.2000 ER - TY - JOUR T1 - 8,9-Dihydroxy-8,9-dihydrodibenzo[a,l] pyrene is a potent morphological cell-transforming agent in C3H10T one half CI8 mouse embryo fibroblasts in the absence of detectable stable covalent DNA adducts AN - 17547562; 4733796 AB - The comparative genotoxic effects of racemic trans-8,9-dihydroxy-8,9-dihydrodibenzo[a,l]pyrene (trans-DB[a,l]P-8,9-diol), the metabolic K-region dihydrodiol of dibenzo[a,l] pyrene (DB[a,l]P) (dibenzo[def,p]chrysene) and DB[a,l]P in transformable mouse embryo C3H10T one half C18 (C3H10T one half ) fibroblasts was investigated. The C3H10T one half mouse embryo morphological cell-transforming activities of these polycyclic aromatic hydrocarbons (PAHs) were assayed using concentration-response studies. At concentrations of 33 nM and above both trans-DB[a,l]P-8,9-diol and DB[a,l]P produced significant (and similar) numbers of type II and III foci per dish and numbers of dishes with type II and II foci. Concomitant cytotoxicity studies revealed a reduction in colony survival of similar to 25% up to 198 nM for both PAHs. DNA adducts of trans-DB[a,l]P-8,9-diol and DB[a,l]P in C3H10T one half cells were analyzed by a super(32)P-post-labeling TLC/HPLC method. No adducts were observed in the DNA of C3H10T one half cells treated with trans-DB[a,l]P-8,9-diol at concentrations that induced morphological cell transformation. Under the same exposure and chromatographic conditions, DNA adducts of deoxyadenosine and deoxyguanosine derived from the fjord region anti-DB [a,l]P-11,12-diol-13,14-epoxide and syn-DB[a,l]P-11,12-diol-13,14-epoxide were observed in the DNA of DB[a,l] P-treated cells. These results indicate that trans-DB[a,l]P-8,9-diol has intrinsic genotoxic activity equal to that of DB[a,l]P, based on morphological cell transformation of mouse embryo fibroblasts. The activity of trans-DB[a,l]P-8,9-diol is apparently not associated with the formation of observable stable covalent DNA adducts. These results suggest that under appropriate conditions, trans-DB[a,l] P-8,9-diol may serve as an intermediate in the genotoxicity of DB[a,l]P. JF - Carcinogenesis AU - Nesnow, S AU - Davis, C AU - Padgett, W T AU - Adams, L AU - Yacopucci, M AU - King, L C AD - Environmental Carcinogenesis Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, MD-68, Research Triangle Park, NC 27711, USA Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 1253 EP - 1257 VL - 21 IS - 6 SN - 0143-3334, 0143-3334 KW - mice KW - 8,9-Dihydroxy-8,9-dihydrodibenzo(a,1)pyrene KW - 8,9-dihydroxy-8,9-dihydrodibenzo(a,1)pyrene KW - Biochemistry Abstracts 2: Nucleic Acids; Toxicology Abstracts KW - Transformation KW - DNA adducts KW - DNA damage KW - Embryos KW - N 14630:Chemical reactions & interactions, including effects of radiation KW - X 24190:Polycyclic hydrocarbons UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17547562?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Carcinogenesis&rft.atitle=8%2C9-Dihydroxy-8%2C9-dihydrodibenzo%5Ba%2Cl%5D+pyrene+is+a+potent+morphological+cell-transforming+agent+in+C3H10T+one+half+CI8+mouse+embryo+fibroblasts+in+the+absence+of+detectable+stable+covalent+DNA+adducts&rft.au=Nesnow%2C+S%3BDavis%2C+C%3BPadgett%2C+W+T%3BAdams%2C+L%3BYacopucci%2C+M%3BKing%2C+L+C&rft.aulast=Nesnow&rft.aufirst=S&rft.date=2000-06-01&rft.volume=21&rft.issue=6&rft.spage=1253&rft.isbn=&rft.btitle=&rft.title=Carcinogenesis&rft.issn=01433334&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - DNA damage; DNA adducts; Embryos; Transformation ER - TY - JOUR T1 - The effect of exotic pasture development on floristic diversity in central Queensland, Australia AN - 17527344; 4719309 AB - Floristic diversity was compared across boundaries where the trees have been cleared in semi-arid brigalow (Acacia harpophylla), gidgee (A. cambagei) and eucalypt (Eucalyptus populnea, E. melanophloia) woodland and forest in central Queensland. The cleared treatments included Exotic pasture (uncultivated, exotic grasses having more than 10% total cover) and Native pasture (uncultivated, not dominated by exotic grasses). An ordination of presence-absence data did not distinguish the floristic composition of the uncleared pasture and native pasture treatments, however, these treatment types were floristically distinct from the exotic pasture treatment in all three land types. Declines in species richness and diversity were substantial between uncleared and exotic pastures for brigalow and eucalypt lands. Differences were far less substantial for the same comparison in gidgee lands, and between uncleared and native pasture for all three land types. These trends reflected differences in most perennial lifeform groups and the species that show significant declines are identified. There was no significant relationship between native diversity and the age of clearing. This study draws attention to the negative impacts on plant diversity posed by deliberate and inadvertent spread of exotic perennial grasses in tropical forests and woodlands. JF - Biological Conservation AU - Fairfax, R J AU - Fensham, R J AD - Queensland Herbarium, Queensland Environmental Protection Agency, Brisbane Botanic Gardens, Mt. Coot-tha Rd, Toowong, Queensland 4066, Australia, rod.fensham@env.qld.gov.au Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 11 EP - 21 VL - 94 IS - 1 SN - 0006-3207, 0006-3207 KW - Australia, Queensland KW - Ecology Abstracts KW - Vegetation changes KW - Semiarid environments KW - Species diversity KW - Pasture KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17527344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biological+Conservation&rft.atitle=The+effect+of+exotic+pasture+development+on+floristic+diversity+in+central+Queensland%2C+Australia&rft.au=Fairfax%2C+R+J%3BFensham%2C+R+J&rft.aulast=Fairfax&rft.aufirst=R&rft.date=2000-06-01&rft.volume=94&rft.issue=1&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Biological+Conservation&rft.issn=00063207&rft_id=info:doi/10.1016%2FS0006-3207%2899%2900169-X LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Vegetation changes; Species diversity; Pasture; Semiarid environments DO - http://dx.doi.org/10.1016/S0006-3207(99)00169-X ER - TY - JOUR T1 - Interregional comparisons of sediment microbial respiration in streams AN - 1665491945; 5368801 AB - 1. The rate of microbial respiration on fine-grained stream sediments was measured at 371 first to fourth-order streams in the Central Appalachian region (Maryland, Pennsylvania, Virginia, and West Virginia), Southern Rocky Mountains (Colorado), and California's Central Valley in 1994 and 1995. 2. Study streams were randomly selected from the United States Environmental Protection Agency's (USEPA) River Reach File (RF3) using the sample design developed by USEPA's Environmental Monitoring and Assessment Program (EMAP). 3. Respiration rate ranged from 0 to 0.621 g O sub(2) g super(-1) AFDM h super(-1) in Central Appalachian streams, 0-0.254 g O sub(2) g super(-1) AFDM h super(-1) in Rocky Mountain streams, and 0-0.436 g O sub(2) g super(-1) AFDM h super(-1) in Central Valley streams. 4. Respiration was significantly lower in Southern Rocky Mountain streams and in cold water streams (< 15 degree C) of the Central Appalachians. 5. Within a defined index period, respiration was not significantly different between years, and was significantly correlated with stream temperature and chemistry (DOC, total N, total P, K, Cl, and alkalinity). 6. The uniformity of respiration estimates among the three study regions suggests that sediment microbial respiration may be collected at any number of scales above the sitelevel site-level for reliable prediction of respiration patterns at larger spatial scales. JF - Freshwater Biology AU - Hill, B H AU - Hall, R K AU - Husby, P AU - Herlihy, A T AU - Dunne, M AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory, 26 W. Martin Luther King Dr, Cincinnati, Ohio 45268, USA, hill.brian@epa.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 213 EP - 222 VL - 44 IS - 2 SN - 0046-5070, 0046-5070 KW - Ecology Abstracts; Water Resources Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Temperature effects KW - Environmental monitoring KW - Freshwater environments KW - Organic Carbon KW - Respiration KW - Temperature KW - Streams KW - Sediments KW - Dissolved organic carbon KW - D 04310:Freshwater KW - A 01110:Environmental KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1665491945?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Freshwater+Biology&rft.atitle=Interregional+comparisons+of+sediment+microbial+respiration+in+streams&rft.au=Hill%2C+B+H%3BHall%2C+R+K%3BHusby%2C+P%3BHerlihy%2C+A+T%3BDunne%2C+M&rft.aulast=Hill&rft.aufirst=B&rft.date=2000-06-01&rft.volume=44&rft.issue=2&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=Freshwater+Biology&rft.issn=00465070&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Temperature effects; Freshwater environments; Respiration; Dissolved organic carbon; Streams; Sediments; Organic Carbon; Temperature ER - TY - JOUR T1 - Exposure Factor and Toxicity Data for California Wildlife: Data Availability and Sources of Uncertainty for Ecological Risk Assessments AN - 1439231007; 18619327 AB - Abstract not Available JF - Bulletin of Environmental Contamination and Toxicology AU - Donohoe, R M AU - Yamamoto, J T AU - Ricker, KE AU - Quinn, J F AD - Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, 301 Capitol Mall, Room 205, Sacramento, CA 95814, USA, US Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 834 EP - 841 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 64 IS - 6 SN - 0007-4861, 0007-4861 KW - Pollution Abstracts; Risk Abstracts; Health & Safety Science Abstracts; Environment Abstracts; Toxicology Abstracts KW - Data processing KW - USA, California KW - Toxicity KW - H 14000:Toxicology KW - X:24360 KW - ENA 02:Toxicology & ENAironmental Safety KW - R2 23050:Environment KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1439231007?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.atitle=Exposure+Factor+and+Toxicity+Data+for+California+Wildlife%3A+Data+Availability+and+Sources+of+Uncertainty+for+Ecological+Risk+Assessments&rft.au=Donohoe%2C+R+M%3BYamamoto%2C+J+T%3BRicker%2C+KE%3BQuinn%2C+J+F&rft.aulast=Donohoe&rft.aufirst=R&rft.date=2000-06-01&rft.volume=64&rft.issue=6&rft.spage=834&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.issn=00074861&rft_id=info:doi/10.1007%2Fs0012800078 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-10-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Data processing; Toxicity; USA, California DO - http://dx.doi.org/10.1007/s0012800078 ER - TY - JOUR T1 - Influence of DNA repair on mutation spectra in Salmonella. AN - 71166177; 10838131 AB - This paper reviews the influence of DNA repair on spontaneous and mutagen-induced mutation spectra at the base-substitution (hisG46) and -1 frameshift (hisD3052) alleles present in strains of the Salmonella (Ames) mutagenicity assay. At the frameshift allele (mostly a CGCGCGCG target), DeltauvrB influences the frequency of spontaneous hotspot mutations (-CG), duplications, and deletions, and it also shifts the sites of deletions and duplications. Cells with pKM101+DeltauvrB spontaneously produce complex frameshifts (frameshifts with an adjacent base substitution). The spontaneous frequency of 1-base insertions or concerted (templated) mutations is unaffected by DNA repair, and neither mutation is inducible by mutagens. Glu-P-1, 1-nitropyrene (1NP), and 2-acetylaminofluorene (2AAF) induce only hotspot mutations and are unaffected by pKM101, whereas benzo(a)pyrene and 4-aminobiphenyl induce only hotspot in pKM101(-), and hotspot plus complex in pKM101(+). At the base-substitution allele (mostly a CC/GG target), the DeltauvrB allele increases spontaneous transitions in the absence of pKM101 and increases transversions in its presence. The frequency of suppressor mutations is decreased 4x by DeltauvrB, but increased 7. 5x by pKM101. Both repair factors cause a shift in the proportion of mutations to the second position of the CC/GG target. With UV light and gamma-rays, the DeltauvrB allele increases the proportion of transitions relative to transversions. pKM101 is required for mutagenesis by Glu-P-1 and 4-AB, and the types and positions of the substitutions are not altered by the addition of the DeltauvrB allele. Changes in DNA repair appear to cause more changes in spontaneous than in mutagen-induced mutation spectra at both alleles. There is a high correlation (r(2)=0.8) between a mutagen's ability to induce complex frameshifts and its relative base-substitution/frameshift mutagenic potency. A mutagen induces the same primary class of base substitution in TA100 (DeltauvrB, pKM101) as it does in Escherichia coli, mammalian cells, or rodents as well as in the p53 gene of human tumors associated with exposure to that mutagen. Thus, a mutagen induces the same primary class of base substitution in most organisms, reflecting the conserved nature of DNA replication and repair processes. JF - Mutation research AU - DeMarini, D M AD - Environmental Carcinogenesis Division, US Environmental Protection Agency, MD-68, 86 Alexander Drive, Research Triangle Park, NC 27711, USA. demarini.david@epa.gov Y1 - 2000/05/30/ PY - 2000 DA - 2000 May 30 SP - 5 EP - 17 VL - 450 IS - 1-2 SN - 0027-5107, 0027-5107 KW - DNA, Bacterial KW - 0 KW - Mutagens KW - Index Medicus KW - Frameshift Mutation KW - Animals KW - Base Sequence KW - Alleles KW - Humans KW - DNA, Bacterial -- genetics KW - Point Mutation KW - Molecular Sequence Data KW - Mutagens -- toxicity KW - DNA, Bacterial -- metabolism KW - DNA, Bacterial -- drug effects KW - Sequence Deletion KW - DNA Repair -- genetics KW - Salmonella -- drug effects KW - Salmonella -- genetics KW - Salmonella -- metabolism KW - Mutation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71166177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+research&rft.atitle=Influence+of+DNA+repair+on+mutation+spectra+in+Salmonella.&rft.au=DeMarini%2C+D+M&rft.aulast=DeMarini&rft.aufirst=D&rft.date=2000-05-30&rft.volume=450&rft.issue=1-2&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=Mutation+research&rft.issn=00275107&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-07-27 N1 - Date created - 2000-07-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Calculation of reaction parameter sensitivity coefficients in multicomponent subsurface transport models AN - 17593292; 4708645 AB - A significant source of uncertainty in multicomponent transport models is due to reaction parameter estimation error. In this paper, two codes are developed to compute reaction parameter sensitivity coefficients, which provide a quantitative measure of the impact of this uncertainty. One of the codes solves the full coupled system of sensitivity equations, while the other applies the operator splitting approach to decouple the sensitivity equations for each chemical component. CPU time comparisons demonstrate that operator splitting significantly reduces the simulation time for solving both the state and sensitivity equations. These comparisons also confirm that solution of the sensitivity equations is more efficient than a traditional direct perturbation sensitivity analysis. Sensitivity calculations for an example transport problem with cobalt and nitrilotriacetate (NTA) are used to gain insight into the relative significance of reaction processes and to rank individual reaction parameters in terms of importance. In this example, speciation reactions cause an indirect linking of the NTA biodegradation and the cobalt sorption reactions, making the NTA concentration nearly as sensitive to the sorption parameters as to the degradation parameters. JF - Advances in Water Resources AU - Tebes-Stevens, CL AU - Valocchi, A J AD - US Environmental Protection Agency, Ecosystems Research Division, Athens, GA 30605, USA, Stevens.Caroline@epa.gov Y1 - 2000/05/20/ PY - 2000 DA - 2000 May 20 SP - 591 EP - 611 VL - 23 IS - 6 SN - 0309-1708, 0309-1708 KW - Aqualine Abstracts; Water Resources Abstracts KW - Sorption KW - Speciation KW - Biodegradation KW - Estimating KW - Mathematical Equations KW - Simulation KW - Errors KW - Model Studies KW - Sensitivity Analysis KW - Biodegradation (see also Biological oxidation) KW - Computer programs KW - Sensitivity analysis KW - Computer Programs KW - Cobalt KW - Sorption (see also Absorption, Adsorption) KW - SW 3020:Sources and fate of pollution KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17593292?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Calculation+of+reaction+parameter+sensitivity+coefficients+in+multicomponent+subsurface+transport+models&rft.au=Tebes-Stevens%2C+CL%3BValocchi%2C+A+J&rft.aulast=Tebes-Stevens&rft.aufirst=CL&rft.date=2000-05-20&rft.volume=23&rft.issue=6&rft.spage=591&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/10.1016%2FS0309-1708%2899%2900054-8 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Estimating; Errors; Computer Programs; Sensitivity Analysis; Mathematical Equations; Simulation; Speciation; Biodegradation; Sorption; Model Studies; Cobalt; Computer programs; Sensitivity analysis; Biodegradation (see also Biological oxidation); Sorption (see also Absorption, Adsorption) DO - http://dx.doi.org/10.1016/S0309-1708(99)00054-8 ER - TY - JOUR T1 - Adsorption, desorption and oxidation of arsenic affected by clay minerals and aging process AN - 17655435; 4722861 AB - Adsorption/desorption and oxidation/reduction of arsenic at clay surfaces are very important to the natural attenuation of arsenic in the subsurface environment. Although numerous studies have concluded that iron oxides have high affinities for the adsorption of As(V), very little experimental work has addressed the arsenic attenuation capacities of different clay minerals and aging process affecting the transformation of arsenic. The abundance of clay minerals in a variety of geochemical environments and their influence on adsorption of contaminants suggests a need for more experimental work to characterize the adsorption desorption, and oxidation of arsenic on clay minerals. In this investigation three types of clay mineral were studied: the 1 : 1 layer clays [halloysite (IN), sedimentary M-kaolinite, and weathered EPK-kaolinite]; the 2 : 1 layer clays [illite (MT) and illite /montmorillonite (MT)]; the 2 :: 1 layer clay [chlorite (CA)]. The halloysite and the chlorite had much greater As(V) adsorption (25-35 folds) than the other clay minerals. The clay minerals had lower As(III) adsorption than As(V) adsorption, and the adsorption was affected by pH. Desorption of arsenic from the clay minerals was significantly influenced by the aging process. The quantities of extractable As(III) and As(V) decreased with increasing aging time. The results demonstrated that oxidation of As(III) to As(V) occurred on the clay surfaces, whereas reduction of As(V) to As(III) was not found in any of the clay minerals studied. The oxidation of As(III) was affected by the types of clay and aging time. JF - Environmental Geology AU - Lin, Z AU - Puls, R W AD - U.S. EPA, National Risk Management and Research Laboratory, Subsurface Protection and Remediation Division, P.O. Box 1198 Ada, OK 74820-1198, USA, lin.zhixun@epamail.epa.gov Y1 - 2000/05/15/ PY - 2000 DA - 2000 May 15 SP - 753 EP - 759 PB - Springer-Verlag VL - 39 IS - 7 SN - 0943-0105, 0943-0105 KW - Pollution Abstracts KW - Age KW - Arsenic KW - Clay KW - Desorption KW - Oxidation KW - Adsorption KW - Minerals KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17655435?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geology&rft.atitle=Adsorption%2C+desorption+and+oxidation+of+arsenic+affected+by+clay+minerals+and+aging+process&rft.au=Lin%2C+Z%3BPuls%2C+R+W&rft.aulast=Lin&rft.aufirst=Z&rft.date=2000-05-15&rft.volume=39&rft.issue=7&rft.spage=753&rft.isbn=&rft.btitle=&rft.title=Environmental+Geology&rft.issn=09430105&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Arsenic; Adsorption; Desorption; Oxidation; Clay; Minerals; Age ER - TY - JOUR T1 - Life history and demographic variation in the California tiger salamander (Ambystoma californiense) AN - 17686617; 4737138 AB - In December 1991, we initiated a long-term study of the California Tiger Salamander (Ambystoma californiense) at a breeding pond in Monterey County, California. Because of habitat loss, this species is a candidate for federal endangered species status, but many basic features of its life history and demography have not been studied in detail. During the first seven years of this study, we captured, measured, individually marked, and released 657 breeding adults and 1895 newly metamorphosed juveniles at the drift fence encircling this pond. We also used skeletochronology to investigate age structure in cohorts of breeding adults. Numbers of breeding adults varied by more than a factor of four among years, and annual juvenile production ranged from 121-775 metamorphs. Contrary to the results of related studies, total juvenile production was positively related to the total biomass of breeding females. Both skeletochronology and mark-recapture data indicate that most individuals do not reach sexual maturity until 4-5 years of age, and, although individual longevity can exceed 10 years, less than 50% of individuals returned to breed a second time. These results suggest that this breeding population was a reproductive sink during the period of this study and that isolated breeding ponds may be insufficient for the long-term maintenance of viable populations of A. californiense. JF - Copeia AU - Trenham, P C AU - Shaffer, H B AU - Koenig, W D AU - Stromberg, M R AD - USEPA, Mid-Continent Ecology Laboratory, 6201 Congdon Boulevard, Duluth, MN 55804, USA, trenham.peter@epa.gov Y1 - 2000/05/08/ PY - 2000 DA - 2000 May 08 SP - 365 EP - 377 VL - 2000 IS - 2 SN - 0045-8511, 0045-8511 KW - California tiger salamander KW - Habitat loss KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Life history KW - Amphibiotic species KW - Breeding KW - USA, California, Monterey KW - Ambystoma californiense KW - Nature conservation KW - Rare species KW - Freshwater KW - Population dynamics KW - Ponds KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08321:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17686617?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Copeia&rft.atitle=Life+history+and+demographic+variation+in+the+California+tiger+salamander+%28Ambystoma+californiense%29&rft.au=Trenham%2C+P+C%3BShaffer%2C+H+B%3BKoenig%2C+W+D%3BStromberg%2C+M+R&rft.aulast=Trenham&rft.aufirst=P&rft.date=2000-05-08&rft.volume=2000&rft.issue=2&rft.spage=365&rft.isbn=&rft.btitle=&rft.title=Copeia&rft.issn=00458511&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Life history; Breeding; Amphibiotic species; Nature conservation; Rare species; Population dynamics; Ponds; Ambystoma californiense; USA, California, Monterey; Freshwater ER - TY - JOUR T1 - Hypoxic effects on growth of Palaemonetes vulgaris larvae and other species: Using constant exposure data to estimate cyclic exposure response AN - 17520204; 4704902 AB - First stage larval marsh grass shrimp, Palaemonetes vulgaris, were exposed to patterns of diurnal, semidiurnal, and constant hypoxia to evaluate effects on growth and to determine if there was a consistent relationship between exposures. A comparison of growth with cyclic exposures versus constant low dissolved oxygen (D.O.) concentrations equivalent to the minima of the cycles showed the cyclic exposures resulted in less growth impairment than constant low-D.O. exposures, when compared to saturated controls. The mean extent of growth impairment of cyclic hypoxia was, however, almost 1.5 times more than would be estimated using an arithmetic time-weighted-average of the hypoxic portion of the cycle. Additional testing with other life stages and species resulted in similar patterns of response. Based on this relationship, an adjusted time-weighted-average could be used to estimate field related responses to cyclic dissolved oxygen from laboratory-derived constant exposure data. JF - Journal of Experimental Marine Biology and Ecology AU - Coiro, L L AU - Poucher, S L AU - Miller, D C AD - U.S. Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA, coiro.laura@epamail.epa.gov Y1 - 2000/05/02/ PY - 2000 DA - 2000 May 02 SP - 243 EP - 255 VL - 247 IS - 2 SN - 0022-0981, 0022-0981 KW - Common American prawn KW - Common american prawn KW - Common grass shrimp KW - Marsh grass shrimp KW - Marsh shrimp KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - Marine KW - Growth KW - Growth curves KW - Hypoxia KW - Palaemonetes vulgaris KW - Environmental effects KW - Developmental stages KW - Crustacean larvae KW - Dissolved oxygen KW - Q1 08286:Physiology, biochemistry, biophysics KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - D 04665:Crustaceans KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17520204?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Experimental+Marine+Biology+and+Ecology&rft.atitle=Hypoxic+effects+on+growth+of+Palaemonetes+vulgaris+larvae+and+other+species%3A+Using+constant+exposure+data+to+estimate+cyclic+exposure+response&rft.au=Coiro%2C+L+L%3BPoucher%2C+S+L%3BMiller%2C+D+C&rft.aulast=Coiro&rft.aufirst=L&rft.date=2000-05-02&rft.volume=247&rft.issue=2&rft.spage=243&rft.isbn=&rft.btitle=&rft.title=Journal+of+Experimental+Marine+Biology+and+Ecology&rft.issn=00220981&rft_id=info:doi/10.1016%2FS0022-0981%2800%2900151-9 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Growth curves; Hypoxia; Environmental effects; Developmental stages; Dissolved oxygen; Crustacean larvae; Growth; Palaemonetes vulgaris; Marine DO - http://dx.doi.org/10.1016/S0022-0981(00)00151-9 ER - TY - JOUR T1 - Neurotoxic and pharmacokinetic responses to trichloroethylene as a function of exposure scenario. AN - 85260708; pmid-10807561 AB - Strategies are needed for assessing the risks of exposures to airborne toxicants that vary over concentrations and durations. The goal of this project was to describe the relationship between the concentration and duration of exposure to inhaled trichloroethylene (TCE), a representative volatile organic chemical, tissue dose as predicted by a physiologically based pharmacokinetic model, and neurotoxicity. Three measures of neurotoxicity were studied: hearing loss, signal detection behavior, and visual function. The null hypothesis was that exposure scenarios having an equivalent product of concentration and duration would produce equal toxic effects, according to the classic linear form of Haber's Rule ((italic)C(/italic) times t = k), where C represents the concentration, t, the time (duration) of exposure, and k, a constant toxic effect. All experiments used adult male, Long-Evans rats. Acute and repeated exposure to TCE increased hearing thresholds, and acute exposure to TCE impaired signal detection behavior and visual function. Examination of all three measures of neurotoxicity showed that if Haber's Rule were used to predict outcomes across exposure durations, the risk would be overestimated when extrapolating from shorter to longer duration exposures, and underestimated when extrapolating from longer to shorter duration exposures. For the acute effects of TCE on behavior and visual function, the estimated concentration of TCE in blood at the time of testing correlated well with outcomes, whereas cumulative exposure, measured as the area under the blood TCE concentration curve, did not. We conclude that models incorporating dosimetry can account for differing exposure scenarios and will therefore improve risk assessments over models considering only parameters of external exposure. JF - Environmental Health Perspectives AU - Boyes, W K AU - Bushnell, P J AU - Crofton, K M AU - Evans, M AU - Simmons, J E AD - Neurotoxicology Division, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA. Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 317 EP - 322 VL - 108 Suppl 2 SN - 0091-6765, 0091-6765 KW - Osmolar Concentration KW - Human KW - Animal KW - Brain KW - Nervous System KW - Trichloroethylene KW - Neurotoxins KW - Time Factors KW - Environmental Exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85260708?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Health+Perspectives&rft.atitle=Neurotoxic+and+pharmacokinetic+responses+to+trichloroethylene+as+a+function+of+exposure+scenario.&rft.au=Boyes%2C+W+K%3BBushnell%2C+P+J%3BCrofton%2C+K+M%3BEvans%2C+M%3BSimmons%2C+J+E&rft.aulast=Boyes&rft.aufirst=W&rft.date=2000-05-01&rft.volume=108+Suppl+2&rft.issue=&rft.spage=317&rft.isbn=&rft.btitle=&rft.title=Environmental+Health+Perspectives&rft.issn=00916765&rft_id=info:doi/ LA - eng DB - ComDisDome N1 - Last updated - 2010-05-07 ER - TY - JOUR T1 - Soluble components of Utah Valley particulate pollution alter alveolar macrophage function in vivo and in vitro. AN - 71238373; 10880136 AB - Water-soluble extracts of Utah Valley dust (UVD) have been found to cause inflammatory injury of the lung in both humans and rodents. The degree of lung damage found correlated with the metal content in the extracts. In the present study, extracts of a set of UVD PM(10) filters collected over a 3-yr span, varying in total metal content with yr 1 = yr 3 > yr 2, were used to assess effects on human alveolar macrophage (AM) function. The phagocytic activity and oxidative response of AM was investigated 24 h after segmental instillation of UVD, or after overnight in vitro culture of the extracts with AM. Using flow cytometry analysis, AM phagocytosis of fluorescently (FITC)-labeled Saccharomyces cerevisiae was inhibited following instillation of UVD1 (61%) but not by yr 2 and 3. Neither baseline oxidant activity nor phorbol ester-induced oxidant generation was affected by the dust extracts in vivo. Overnight culture of AM with UVD1 resulted in a significant decrease in the percentage of AM phagocytizing particles (30%), while no significant effect on this function was found with the other two extracts. Furthermore, only UVD1 caused an immediate oxidative response in AM, although both UVD1 and UVD3 inhibited oxidant activity in AM when the cells were incubated with the extracts overnight. The detrimental effects on AM host defenses could be due to apoptosis, which was evident in cells exposed to the UVD1 and to a much lesser extent with AM exposed to yr 2 and 3. The component(s) responsible for the toxic effects on AM in vitro were removed by pretreatment of the UVD extracts with a polycation chelating resin, chelex-100. However, since yr 1 and 3 are similar in their soluble metal content, but differ in their effects on AM phagocytosis, it is possible that the metals may not be the culprit in effects of particulate matter on AM host defense. JF - Inhalation toxicology AU - Soukup, J M AU - Ghio, A J AU - Becker, S AD - US Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Research Triangle Park, North Carolina, USA. Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 401 EP - 414 VL - 12 IS - 5 SN - 0895-8378, 0895-8378 KW - Air Pollutants KW - 0 KW - Metals, Heavy KW - Index Medicus KW - Respiratory Burst -- drug effects KW - Solubility KW - Humans KW - Particle Size KW - Metals, Heavy -- analysis KW - Saccharomyces cerevisiae -- immunology KW - Cell Survival -- drug effects KW - Cells, Cultured KW - Adult KW - Apoptosis -- drug effects KW - Flow Cytometry KW - Utah KW - Adolescent KW - Bronchoalveolar Lavage Fluid -- cytology KW - Female KW - Male KW - Phagocytosis -- physiology KW - Phagocytosis -- drug effects KW - Macrophages, Alveolar -- drug effects KW - Air Pollutants -- toxicity KW - Macrophages, Alveolar -- physiology KW - Air Pollutants -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71238373?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Inhalation+toxicology&rft.atitle=Soluble+components+of+Utah+Valley+particulate+pollution+alter+alveolar+macrophage+function+in+vivo+and+in+vitro.&rft.au=Soukup%2C+J+M%3BGhio%2C+A+J%3BBecker%2C+S&rft.aulast=Soukup&rft.aufirst=J&rft.date=2000-05-01&rft.volume=12&rft.issue=5&rft.spage=401&rft.isbn=&rft.btitle=&rft.title=Inhalation+toxicology&rft.issn=08958378&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-26 N1 - Date created - 2000-10-16 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Endocrine modulators: risk characterization and assessment. AN - 71225929; 10862562 AB - Over the last several years, information has been accumulating that suggests that adverse effects are being induced in certain wildlife species, and perhaps also in humans, as a consequence of exposure to man-made chemicals that have been released into the environment. Many of these effects have been attributed to interactions with various hormone systems in endocrine tissues. Most often the effects observed have been effects on reproduction and development, although there are also (often conflicting) data regarding an association between exposure and certain kinds of cancer, particularly cancers of reproductive tissues such as breast and testis; effects on the immune system have also been noted. The substances to which these attributes have been ascribed have come to be known as "endocrine modulators" or "endocrine disruptors." The full nature and scope of the "problem" of endocrine modulators/disruptors is currently a matter of great debate, both within and outside of the scientific community. Regulatory authorities around the world are being asked what their position is on this issue and what, if any, regulatory strategies they are developing to address the problem. In many cases, because of the nature of the legislation under which governments manage chemicals, regulatory decisions must be informed by risk assessment. This presentation will describe the general approach to the risk assessment of endocrine modulators/disruptors as practiced by the US government, with particular focus on the current practices/policies of the US Environmental Protection Agency. JF - Toxicologic pathology AU - Fenner-Crisp, P A AD - Office of Pesticide Programs, US Environmental Protection Agency, Washington, DC 20460, USA. fenner-crisp.penelope@epa.gov PY - 2000 SP - 438 EP - 440 VL - 28 IS - 3 SN - 0192-6233, 0192-6233 KW - Hormone Antagonists KW - 0 KW - Index Medicus KW - United States KW - Animals KW - United States Environmental Protection Agency KW - Dose-Response Relationship, Drug KW - Humans KW - Environmental Exposure -- legislation & jurisprudence KW - Risk Assessment -- legislation & jurisprudence KW - Hormone Antagonists -- toxicity KW - Endocrine System -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71225929?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicologic+pathology&rft.atitle=Endocrine+modulators%3A+risk+characterization+and+assessment.&rft.au=Fenner-Crisp%2C+P+A&rft.aulast=Fenner-Crisp&rft.aufirst=P&rft.date=2000-05-01&rft.volume=28&rft.issue=3&rft.spage=438&rft.isbn=&rft.btitle=&rft.title=Toxicologic+pathology&rft.issn=01926233&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-05 N1 - Date created - 2000-10-05 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The combination of elastase and sulfur dioxide exposure causes COPD-like lesions in the rat. AN - 71170384; 10843962 JF - Chest AU - Kodavanti, U P AU - Jackson, M C AU - Ledbetter, A D AU - Starcher, B C AU - Evansky, P A AU - Harewood, A AU - Winsett, D W AU - Costa, D L AD - Pulmonary Toxicology Branch, Experimental Toxicology Division, National Health and Environment Effects Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, NC 27711, USA. Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 299S EP - 302S VL - 117 IS - 5 Suppl 1 SN - 0012-3692, 0012-3692 KW - Air Pollutants KW - 0 KW - Sulfur Dioxide KW - 0UZA3422Q4 KW - L-Lactate Dehydrogenase KW - EC 1.1.1.27 KW - Pancreatic Elastase KW - EC 3.4.21.36 KW - Abridged Index Medicus KW - Index Medicus KW - Respiratory Function Tests KW - Animals KW - Neutrophils -- pathology KW - Cell Count KW - Disease Models, Animal KW - Rats, Inbred BN KW - Rats KW - Rats, Sprague-Dawley KW - Bronchoalveolar Lavage Fluid -- chemistry KW - Instillation, Drug KW - Drug Synergism KW - Trachea KW - Bronchoalveolar Lavage Fluid -- cytology KW - L-Lactate Dehydrogenase -- metabolism KW - Male KW - Lung Diseases, Obstructive -- pathology KW - Pancreatic Elastase -- administration & dosage KW - Lung Diseases, Obstructive -- physiopathology KW - Sulfur Dioxide -- toxicity KW - Lung Diseases, Obstructive -- chemically induced KW - Sulfur Dioxide -- administration & dosage KW - Pancreatic Elastase -- toxicity KW - Air Pollutants -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71170384?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chest&rft.atitle=The+combination+of+elastase+and+sulfur+dioxide+exposure+causes+COPD-like+lesions+in+the+rat.&rft.au=Kodavanti%2C+U+P%3BJackson%2C+M+C%3BLedbetter%2C+A+D%3BStarcher%2C+B+C%3BEvansky%2C+P+A%3BHarewood%2C+A%3BWinsett%2C+D+W%3BCosta%2C+D+L&rft.aulast=Kodavanti&rft.aufirst=U&rft.date=2000-05-01&rft.volume=117&rft.issue=5+Suppl+1&rft.spage=299S&rft.isbn=&rft.btitle=&rft.title=Chest&rft.issn=00123692&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-30 N1 - Date created - 2000-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A model for predicting the frequency of high pesticide exposure events in the Agricultural Health Study. AN - 71162952; 10845783 AB - The frequency of self-reported high pesticide exposure events (HPEE) has been recorded in the NCI/EPA/NIEHS Agricultural Health Study (AHS). Fourteen percent (14%) of the enrolled applicators responding reported "an incident or experience while using any pesticide which caused an unusually high exposure." These data show, as expected, that the probability of a report of an HPEE increases with the cumulative number of days of pesticide application reported by the applicator. We have developed a three-parameter model that predicts the risk odds ratio (OR) of an HPEE as a function of the number of days that pesticides are applied. These events are costly in terms of resulting health-care visits, lost time from work, and potential risk for cancer and other chronic diseases. We propose that failure to carefully follow all the pesticide manufacturer's label requirements, inexperience, and random events (i.e., breaking hose) are the three factors responsible for the events observed. Special precautions for new or infrequent users of pesticides are indicated. JF - Environmental research AU - Mage, D T AU - Alavanja, M C AU - Sandler, D P AU - McDonnell, C J AU - Kross, B AU - Rowland, A AU - Blair, A AD - US Environmental Protection Agency, National Center for Environmental Assessment, Research Triangle Park, North Carolina 27711, USA. davidm@temss2.isr.temple.edu Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 67 EP - 71 VL - 83 IS - 1 SN - 0013-9351, 0013-9351 KW - Agrochemicals KW - 0 KW - Pesticides KW - Index Medicus KW - Odds Ratio KW - Prospective Studies KW - Risk Factors KW - Humans KW - Models, Statistical KW - Environmental Monitoring -- statistics & numerical data KW - Occupational Exposure -- statistics & numerical data KW - Agriculture -- statistics & numerical data KW - Occupational Exposure -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71162952?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+research&rft.atitle=A+model+for+predicting+the+frequency+of+high+pesticide+exposure+events+in+the+Agricultural+Health+Study.&rft.au=Mage%2C+D+T%3BAlavanja%2C+M+C%3BSandler%2C+D+P%3BMcDonnell%2C+C+J%3BKross%2C+B%3BRowland%2C+A%3BBlair%2C+A&rft.aulast=Mage&rft.aufirst=D&rft.date=2000-05-01&rft.volume=83&rft.issue=1&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Environmental+research&rft.issn=00139351&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-13 N1 - Date created - 2000-06-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Mutagenicity of trichloroethylene and its metabolites: implications for the risk assessment of trichloroethylene. AN - 71137871; 10807553 AB - This article addresses the evidence that trichloroethylene (TCE) or its metabolites might mediate tumor formation via a mutagenic mode of action. We review and draw conclusions from the published mutagenicity and genotoxicity information for TCE and its metabolites, chloral hydrate (CH), dichloroacetic acid (DCA), trichloroacetic acid (TCA), trichloroethanol, S-(1, 2-dichlorovinyl)-l-cysteine (DCVC), and S-(1, 2-dichlorovinyl) glutathione (DCVG). The new U.S. Environmental Protection Agency proposed Cancer Risk Assessment Guidelines provide for an assessment of the key events involved in the development of specific tumors. Consistent with this thinking, we provide a new and general strategy for interpreting genotoxicity data that goes beyond a simple determination that the chemical is or is not genotoxic. For TCE, we conclude that the weight of the evidence argues that chemically induced mutation is unlikely to be a key event in the induction of human tumors that might be caused by TCE itself (as the parent compound) and its metabolites, CH, DCA, and TCA. This conclusion derives primarily from the fact that these chemicals require very high doses to be genotoxic. There is not enough information to draw any conclusions for trichloroethanol and the two trichloroethylene conjugates, DCVC and DCVG. There is some evidence that DCVC is a more potent mutagen than CH, DCA, or TCA. Unfortunately, definitive conclusions as to whether TCE will induce tumors in humans via a mutagenic mode of action cannot be drawn from the available information. More research, including the development and use of new techniques, is required before it is possible to make a definitive assessment as to whether chemically induced mutation is a key event in any human tumors resulting from exposure to TCE. JF - Environmental health perspectives AU - Moore, M M AU - Harrington-Brock, K AD - U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA. moore.martha@epa.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 215 EP - 223 VL - 108 Suppl 2 SN - 0091-6765, 0091-6765 KW - Carcinogens, Environmental KW - 0 KW - Mutagens KW - Trichloroethylene KW - 290YE8AR51 KW - Index Medicus KW - United States KW - Animals KW - United States Environmental Protection Agency KW - Dose-Response Relationship, Drug KW - Humans KW - Genes -- drug effects KW - Risk Assessment KW - Trichloroethylene -- metabolism KW - Carcinogens, Environmental -- adverse effects KW - Trichloroethylene -- adverse effects KW - Mutagens -- metabolism KW - Mutagens -- adverse effects KW - Neoplasms -- chemically induced KW - Carcinogens, Environmental -- metabolism KW - Neoplasms -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71137871?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+health+perspectives&rft.atitle=Mutagenicity+of+trichloroethylene+and+its+metabolites%3A+implications+for+the+risk+assessment+of+trichloroethylene.&rft.au=Moore%2C+M+M%3BHarrington-Brock%2C+K&rft.aulast=Moore&rft.aufirst=M&rft.date=2000-05-01&rft.volume=108+Suppl+2&rft.issue=&rft.spage=215&rft.isbn=&rft.btitle=&rft.title=Environmental+health+perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-08-01 N1 - Date created - 2000-08-01 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Environ Mol Mutagen. 1996;27(1):1-9 [8625942] Mutat Res. 1996 Apr 6;367(4):254-9 [8628333] Environ Mol Mutagen. 1996;28(2):80-9 [8844988] Arch Toxicol. 1997;71(5):332-5 [9137812] Mutat Res. 1997 Jun;386(3):279-90 [9219565] Environ Mol Mutagen. 1987;10 Suppl 10:1-175 [3319609] Mutagenesis. 1987 Sep;2(5):349-55 [2830452] Toxicol Appl Pharmacol. 1988 Jun 15;94(1):45-54 [3376113] Ann N Y Acad Sci. 1988;534:679-93 [3389684] Int Arch Occup Environ Health. 1988;60(6):419-23 [3410552] Cell Biol Toxicol. 1988 Dec;4(4):393-403 [3228710] Mutagenesis. 1990 Jul;5(4):323-6 [2398816] Mutagenesis. 1990 Jul;5(4):371-4 [2398818] Carcinogenesis. 1997 Aug;18(8):1675-8 [9276648] Carcinogenesis. 1997 Nov;18(11):2101-6 [9395208] Mutat Res. 1998 Mar 30;413(3):265-76 [9651541] J Natl Cancer Inst. 1999 May 19;91(10):854-61 [10340905] Mutat Res. 1988 Sep;206(1):83-90 [2901035] Mutat Res. 1989 Mar;222(3):279-82 [2922011] Mutat Res. 1989 Apr;222(4):329-35 [2704384] Environ Mol Mutagen. 1989;13(3):197-202 [2651116] Mutat Res. 1989 Jul;221(1):11-37 [2664493] Toxicology. 1989 Oct 16;58(3):239-48 [2799828] Mutagenesis. 1989 Sep;4(5):394-403 [2687635] Proc Natl Acad Sci U S A. 1990 Jan;87(1):51-5 [1967496] Int Arch Occup Environ Health. 1990;62(2):171-6 [2323835] Fundam Appl Toxicol. 1990 Apr;14(3):513-22 [2111256] Mutat Res. 1990 Jun-Aug;234(3-4):187-93 [2114536] Environ Health Perspect. 2000 May;108 Suppl 2:161-76 [10807550] Environ Health Perspect. 2000 May;108 Suppl 2:177-200 [10807551] Environ Health Perspect. 2000 May;108 Suppl 2:225-40 [10807554] Environ Health Perspect. 2000 May;108 Suppl 2:241-59 [10807555] Environ Health Perspect. 2000 May;108 Suppl 2:317-22 [10807561] Mutat Res. 1977 Apr;48(2):173-80 [69268] Arch Toxicol. 1977 Sep 21;38(1-2):87-98 [199140] Mutat Res. 1978 May;57(2):141-53 [351387] Toxicol Eur Res. 1981 Mar;3(2):63-7 [7245187] Sem Hop. 1981 Oct 8-15;57(37-38):1511-2 [6270818] Environ Mutagen. 1983;5 Suppl 1:1-142 [6365529] Toxicology. 1985 Apr;35(1):25-33 [4002236] Toxicol Lett. 1986 Apr;31(1):31-5 [3715914] Chem Biol Interact. 1986 Oct 15;60(1):31-45 [3536138] Environ Mol Mutagen. 1991;18(1):51-83 [1864269] Carcinogenesis. 1991 Sep;12(9):1715-9 [1893532] Mutat Res. 1991 Nov;258(3):259-83 [1719404] Mutagenesis. 1992 May;7(3):195-7 [1602974] Res Commun Chem Pathol Pharmacol. 1992 May;76(2):192-208 [1376481] Environ Mol Mutagen. 1992;20(4):277-88 [1330547] Mutat Res. 1993 May;287(1):101-12 [7683376] Mutat Res. 1993 May;287(1):113-8 [7683377] Mutat Res. 1993 May;287(1):131-7 [7683379] Mutat Res. 1993 May;287(1):29-46 [7683382] Mutat Res. 1993 May;287(1):57-70 [7683385] Mutat Res. 1993 May;287(1):71-86 [7683386] Cell Biol Toxicol. 1993 Jan-Mar;9(1):1-13 [7686084] Environ Health Perspect. 1993 Mar;99:281-4 [8319644] Mutagenesis. 1993 May;8(3):265-71 [8332090] Environ Mol Mutagen. 1993;22(2):107-14 [8359152] Mutat Res. 1994 Jan-Feb;323(1-2):81-8 [7508572] Mutat Res. 1994 Aug;322(2):87-96 [7519326] Carcinogenesis. 1994 Oct;15(10):2255-61 [7955063] Carcinogenesis. 1995 Mar;16(3):495-500 [7697804] Food Chem Toxicol. 1995 Apr;33(4):257-64 [7737599] Carcinogenesis. 1995 May;16(5):1127-33 [7767975] Toxicology. 1995 Aug 25;101(3):125-56 [7676462] Toxicology. 1995 Sep 1;102(1-2):73-81 [7482563] Mutat Res. 1995 Nov;348(3):105-10 [8524361] Mutat Res. 1995 Nov;340(1):1-36 [8524349] Mutat Res. 1995 Dec;348(4):147-52 [8544866] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The PBDEs: an emerging environmental challenge and another reason for breast-milk monitoring programs. AN - 71112629; 10811563 AB - Levels of the polybrominated diphenyl ethers (PBDEs), a class of widely used flame retardants, appear to be rising rapidly in human tissues, as evidenced by studies of human breast milk. The case of the PBDEs illustrates the value of breast-milk monitoring programs in identifying important emerging pollutants, and highlights why such monitoring programs are needed in the United States. A review of the use, occurrence, and toxicity of PBDEs indicates many parallels between some PBDEs, PCBs, and other polyhalogenated persistent organic pollutants, and suggests that the PBDEs may be a significant environmental challenge in the future. JF - Environmental health perspectives AU - Hooper, K AU - McDonald, T A AD - Hazardous Materials Laboratory, California Environmental Protection Agency, Berkeley, California 94707, USA. kim_hooper@hotmail.com Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 387 EP - 392 VL - 108 IS - 5 SN - 0091-6765, 0091-6765 KW - Environmental Pollutants KW - 0 KW - Flame Retardants KW - Phenyl Ethers KW - Polybrominated Biphenyls KW - Receptors, Aryl Hydrocarbon KW - Index Medicus KW - United States KW - Receptors, Aryl Hydrocarbon -- drug effects KW - Animals KW - Environmental Pollutants -- toxicity KW - Environmental Health KW - Humans KW - Nervous System -- drug effects KW - Environmental Pollutants -- analysis KW - Environmental Monitoring KW - Flame Retardants -- analysis KW - Endocrine Glands -- drug effects KW - Nervous System -- embryology KW - Nervous System -- growth & development KW - Female KW - Flame Retardants -- toxicity KW - Milk, Human -- chemistry KW - Polybrominated Biphenyls -- analysis KW - Phenyl Ethers -- toxicity KW - Phenyl Ethers -- analysis KW - Polybrominated Biphenyls -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71112629?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+health+perspectives&rft.atitle=The+PBDEs%3A+an+emerging+environmental+challenge+and+another+reason+for+breast-milk+monitoring+programs.&rft.au=Hooper%2C+K%3BMcDonald%2C+T+A&rft.aulast=Hooper&rft.aufirst=K&rft.date=2000-05-01&rft.volume=108&rft.issue=5&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Environmental+health+perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-08-03 N1 - Date created - 2000-08-03 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Early Hum Dev. 1995 Apr 14;41(2):111-27 [7601016] Epidemiology. 1995 Sep;6(5):544-6 [8562633] Environ Health Perspect. 1995 Sep;103(9):820-31 [7498094] Arch Environ Contam Toxicol. 1996 Feb;30(2):285-91 [8593086] J Toxicol Environ Health. 1996 Mar;47(4):363-78 [8600289] J Toxicol Environ Health. 1996 Feb 23;47(3):209-20 [8604146] Toxicol Appl Pharmacol. 1996 Jun;138(2):251-61 [8658526] N Engl J Med. 1996 Sep 12;335(11):783-9 [8703183] Environ Health Perspect. 1996 Aug;104 Suppl 4:741-803 [8880001] Annu Rev Public Health. 1997;18:211-44 [9143718] J Environ Sci Health B. 1997 May;32(3):377-93 [9177011] Toxicology. 1997 Sep 5;121(3):191-204 [9231697] Lancet. 1997 Jul 26;350(9073):240-4 [9242800] Xenobiotica. 1998 Feb;28(2):199-211 [9522443] Chemosphere. 1999 Dec;39(13):2271-8 [10576099] J Toxicol Environ Health A. 1999 Nov 26;58(6):329-41 [10580757] Food Cosmet Toxicol. 1978 Dec;16(6):543-6 [103790] N Engl J Med. 1980 Jan 3;302(1):31-3 [6243165] Toxicol Lett. 1980 Jan;5(1):19-25 [7376196] Toxicol Lett. 1980 Aug;6(3):207-12 [6250253] Bull Environ Contam Toxicol. 1987 Dec;39(6):953-9 [3440151] Toxicology. 1990 Apr 30;61(3):259-74 [2330598] Toxicol Appl Pharmacol. 1990 Sep 1;105(2):254-63 [2120796] Pharmacol Toxicol. 1991 Dec;69(6):442-9 [1766920] Dev Pharmacol Ther. 1992;18(1-2):9-13 [1483367] Environ Health Perspect. 1998 Apr;106 Suppl 2:723-31 [9599723] Environ Health Perspect. 1998 Apr;106 Suppl 2:737-42 [9599725] Environ Health Perspect. 1998 Apr;106 Suppl 2:761-75 [9599728] Epidemiology. 1998 Jul;9(4):373-8 [9647899] Nature. 1998 Jul 2;394(6688):28-9 [9665124] Environ Health Perspect. 1999 Jan;107(1):45-51 [9872716] Acta Paediatr. 1998 Dec;87(12):1224-9 [9894819] Mutat Res. 1999 Feb 19;439(2):137-47 [10023042] Arch Environ Contam Toxicol. 1999 Apr;36(3):355-63 [10047605] Oncol Res. 1998;10(8):429-32 [10100760] Environ Health Perspect. 1999 Aug;107(8):643-8 [10417362] J Toxicol Environ Health A. 1999 Jul 23;57(6):369-78 [10478820] Toxicology. 1993 Dec 31;85(2-3):123-35 [8303708] Am J Public Health. 1994 Mar;84(3):415-21 [8129058] Toxicology. 1994 Jan 26;86(1-2):49-61 [8134923] Environ Health Perspect. 1994 Jan;102 Suppl 1:173-85 [8187706] Environ Health Perspect. 1994 Mar;102(3):290-7 [8033869] Rev Environ Contam Toxicol. 1995;141:1-26 [7886253] Environ Health Perspect. 1994 Nov;102 Suppl 9:157-67 [7698077] Am J Public Health. 1995 Apr;85(4):504-8 [7702113] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Exposure assessment of trichloroethylene. AN - 71112280; 10807565 AB - This article reviews exposure information available for trichloroethylene (TCE) and assesses the magnitude of human exposure. The primary sources releasing TCE into the environment are metal cleaning and degreasing operations. Releases occur into all media but mostly into the air due to its volatility. It is also moderately soluble in water and can leach from soils into groundwater. TCE has commonly been found in ambient air, surface water, and groundwaters. The 1998 air levels in microg/m(3) across 115 monitors can be summarized as follows: range = 0.01-3.9, mean = 0.88. A California survey of large water utilities in 1984 found a median concentration of 3.0 microg/L. General population exposure to TCE occurs primarily by inhalation and water ingestion. Typical average daily intakes have been estimated as 11-33 microg/day for inhalation and 2-20 microg/day for ingestion. A small portion of the population is expected to have elevated exposures as a result of one or more of these pathways: inhalation exposures to workers involved in degreasing operations, ingestion and inhalation exposures occurring in homes with private wells located near disposal/contamination sites, and inhalation exposures to consumers using TCE products in areas of poor ventilation. More current and more extensive data on TCE levels in indoor air, water, and soil are needed to better characterize the distribution of background exposures in the general population and elevated exposures in special subpopulations. JF - Environmental health perspectives AU - Wu, C AU - Schaum, J AD - Office of Research and Development, National Center for Environmental Assessment, U.S. Environmental Protection Agency, Washington, DC 20460, USA. wu.chieh@epa.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 359 EP - 363 VL - 108 Suppl 2 SN - 0091-6765, 0091-6765 KW - Trichloroethylene KW - 290YE8AR51 KW - Index Medicus KW - United States KW - Humans KW - Body Burden KW - Environmental Exposure -- statistics & numerical data UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71112280?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+health+perspectives&rft.atitle=Exposure+assessment+of+trichloroethylene.&rft.au=Wu%2C+C%3BSchaum%2C+J&rft.aulast=Wu&rft.aufirst=C&rft.date=2000-05-01&rft.volume=108+Suppl+2&rft.issue=&rft.spage=359&rft.isbn=&rft.btitle=&rft.title=Environmental+health+perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-08-01 N1 - Date created - 2000-08-01 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Am J Public Health. 1984 May;74(5):479-84 [6711723] Chemosphere. 1995 Jul;31(1):2561-78 [7670867] Clin Chem. 1994 Jul;40(7 Pt 2):1401-4 [8013127] Environ Health Perspect. 1985 Oct;62:313-8 [4085436] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Human variability and susceptibility to trichloroethylene. AN - 71111351; 10807552 AB - Although humans vary in their response to chemicals, comprehensive measures of susceptibility have generally not been incorporated into human risk assessment. The U.S. EPA dose-response-based risk assessments for cancer and the RfD/RfC (reference dose-reference concentration) approach for noncancer risk assessments are assumed to protect vulnerable human subgroups. However, these approaches generally rely on default assumptions and do not consider the specific biological basis for potential susceptibility to a given toxicant. In an effort to focus more explicitly on this issue, this article addresses biological factors that may affect human variability and susceptibility to trichloroethylene (TCE), a widely used halogenated industrial solvent. In response to Executive Order 13045, which requires federal agencies to make protection of children a high priority in implementing their policies and to take special risks to children into account when developing standards, this article examines factors that may affect risk of exposure to TCE in children. The influence of genetics, sex, altered health state, coexposure to alcohol, and enzyme induction on TCE toxicity are also examined. JF - Environmental health perspectives AU - Pastino, G M AU - Yap, W Y AU - Carroquino, M AD - U.S. Environmental Protection Agency, National Center for Environmental Assessment, Washington, DC, USA. gina.pastino@spcorp.com Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 201 EP - 214 VL - 108 Suppl 2 SN - 0091-6765, 0091-6765 KW - Carcinogens, Environmental KW - 0 KW - Trichloroethylene KW - 290YE8AR51 KW - Index Medicus KW - Biotransformation -- genetics KW - Reproduction -- drug effects KW - Humans KW - Neoplasms -- chemically induced KW - Trichloroethylene -- metabolism KW - Genetic Variation KW - Carcinogens, Environmental -- adverse effects KW - Trichloroethylene -- adverse effects KW - Carcinogens, Environmental -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71111351?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+health+perspectives&rft.atitle=Human+variability+and+susceptibility+to+trichloroethylene.&rft.au=Pastino%2C+G+M%3BYap%2C+W+Y%3BCarroquino%2C+M&rft.aulast=Pastino&rft.aufirst=G&rft.date=2000-05-01&rft.volume=108+Suppl+2&rft.issue=&rft.spage=201&rft.isbn=&rft.btitle=&rft.title=Environmental+health+perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-08-01 N1 - Date created - 2000-08-01 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Acta Pharmacol Toxicol (Copenh). 1986 Aug;59(2):135-43 [3776551] J Biol Chem. 1986 Dec 15;261(35):16689-97 [3782137] Pharmacol Toxicol. 1987 May;60(5):325-9 [3615341] Br Med J (Clin Res Ed). 1987 Jul 11;295(6590):80-2 [3113644] Pharmacol Ther. 1987;34(1):59-73 [3310044] Biochem Biophys Res Commun. 1987 Oct 14;148(1):232-8 [3675576] Cancer Res. 1988 Mar 15;48(6):1499-504 [3345523] Toxicol Appl Pharmacol. 1988 Jun 30;94(2):227-37 [3388420] Ann N Y Acad Sci. 1988;534:316-42 [3389663] Mutat Res. 1988 Sep;206(1):83-90 [2901035] Regul Toxicol Pharmacol. 1988 Dec;8(4):471-86 [3222488] Dev Pharmacol Ther. 1989;12(2):57-64 [2714158] Alcohol Clin Exp Res. 1990 Oct;14(5):635-47 [2264590] J Clin Invest. 1991 Feb;87(2):397-405 [1991826] Toxicol Appl Pharmacol. 1991 May;108(3):379-89 [2020965] Jpn J Cancer Res. 1991 Mar;82(3):254-6 [1673675] Prog Nucleic Acid Res Mol Biol. 1991;40:255-87 [2031085] Am Rev Respir Dis. 1991 Jun;143(6):1224-30 [2048804] J Clin Invest. 1994 Jul;94(1):193-201 [8040260] Br J Cancer. 1994 Nov;70(5):950-3 [7947103] Teratology. 1989 Nov;40(5):445-51 [2623633] Int J Biochem. 1994 Dec;26(12):1333-40 [7890112] Alcohol Alcohol. 1994 Nov;29(6):663-71 [7695781] Am J Epidemiol. 1995 May 1;141(9):850-62 [7717362] Environ Health Perspect. 1994 Dec;102 Suppl 11:111-7 [7737035] Jpn J Cancer Res. 1995 Mar;86(3):245-8 [7744693] Carcinogenesis. 1995 May;16(5):1243-5 [7767992] Carcinogenesis. 1995 May;16(5):993-1002 [7767998] Cancer Epidemiol Biomarkers Prev. 1995 Sep;4(6):607-10 [8547826] Fundam Appl Toxicol. 1995 Sep;27(2):203-16 [8529815] Arch Toxicol. 1995;69(7):505-7 [8526747] Pharmacogenetics. 1995 Oct;5(5):332-4 [8563775] Toxicology. 1995 Dec 28;105(2-3):217-24 [8571359] Biochem Pharmacol. 1996 Feb 23;51(4):403-11 [8619884] Mol Pharmacol. 1996 Feb;49(2):260-8 [8632758] J Natl Cancer Inst. 1996 Feb 21;88(3-4):183-92 [8632492] Food Chem Toxicol. 1996 May;34(5):469-76 [8655096] Biochem Pharmacol. 1996 Jul 26;52(2):379-83 [8694864] Eur J Biochem. 1996 Jun 1;238(2):476-83 [8681961] Toxicology. 1996 Jul 17;111(1-3):271-87 [8711742] J Natl Cancer Inst. 1996 Oct 16;88(20):1472-7 [8841022] Biochem Biophys Res Commun. 1996 Oct 14;227(2):340-50 [8878519] Am J Public Health. 1996 Dec;86(12):1701-4 [9003123] Am J Public Health. 1996 Dec;86(12):1717-22 [9003127] Br J Ind Med. 1989 May;46(5):347-9 [2751934] Biochem Biophys Res Commun. 1989 Aug 30;163(1):418-23 [2775275] Metabolism. 1989 Nov;38(11):1124-44 [2554095] Carcinogenesis. 1989 Dec;10(12):2371-4 [2591027] J Toxicol Environ Health. 1989;28(4):395-406 [2593173] Alcohol. 1989 Nov-Dec;6(6):465-8 [2597350] N Engl J Med. 1990 Jan 11;322(2):95-9 [2248624] Toxicol Appl Pharmacol. 1990 Mar 1;102(3):497-513 [2315918] J Am Coll Cardiol. 1990 Jul;16(1):155-64 [2358589] J Am Coll Cardiol. 1990 Nov;16(5):1304-9 [2229779] JAMA. 1995 Jul 12;274(2):149-54 [7596003] Cancer Epidemiol Biomarkers Prev. 1995 Apr-May;4(3):253-9 [7606200] Gene. 1995 Jun 14;159(1):113-21 [7607565] J Occup Environ Med. 1995 Jan;37(1):12-3 [7620937] Environ Health Perspect. 1995 Apr;103 Suppl 3:13-29 [7635107] Arch Toxicol. 1995;69(5):291-9 [7654132] J Occup Environ Med. 1995 Jul;37(7):797-806 [7552463] Drug Metab Dispos. 1995 Aug;23(8):846-53 [7493552] Toxicol Ind Health. 1995 May-Jun;11(3):253-307 [7482570] Neurotoxicol Teratol. 1995 Jul-Aug;17(4):437-43 [7565490] Environ Health Perspect. 2000 May;108 Suppl 2:177-200 [10807551] Environ Health Perspect. 2000 May;108 Suppl 2:225-40 [10807554] Environ Health Perspect. 2000 May;108 Suppl 2:241-59 [10807555] Environ Health Perspect. 2000 May;108 Suppl 2:261-4 [10807556] Environ Health Perspect. 2000 May;108 Suppl 2:275-82 [10807558] Environ Health Perspect. 2000 May;108 Suppl 2:323-34 [10807562] Pediatrics. 1966 Jun;37(6):1005-7 [5949019] Pediatr Res. 1967 May;1(3):165-8 [6080860] Pediatrics. 1971 Jan;47(1):Suppl 2:264+ [5551040] Biochem J. 1980 Jan 15;186(1):119-26 [6989357] Chest. 1981 Jul;80(1 Suppl):79-80 [7249749] Toxicol Appl Pharmacol. 1981 Aug;60(1):8-15 [7281179] Toxicol Appl Pharmacol. 1983 Apr;68(2):242-9 [6857662] Dev Pharmacol Ther. 1983;6(2):110-24 [6861596] Int Arch Occup Environ Health. 1984;53(4):283-9 [6715052] J Appl Toxicol. 1984 Dec;4(6):315-9 [6520320] Biochemistry. 1985 Jul 30;24(16):4409-17 [4052406] Yakugaku Zasshi. 1985 Jul;105(7):607-18 [3910798] Lancet. 1994 Jan 29;343(8892):266-8 [7905099] Occup Environ Med. 1994 Feb;51(2):113-9 [8111458] Clin Pharmacokinet. 1994 Jan;26(1):59-70 [8137598] Biochem J. 1994 May 15;300 ( Pt 1):271-6 [8198545] Carcinogenesis. 1994 May;15(5):1077-81 [8200072] Clin Chem. 1994 Jul;40(7 Pt 2):1421-5 [8013131] Eur Respir J. 1994 Mar;7(3):477-83 [8013605] J Occup Med. 1994 May;36(5):556-62 [8027881] Clin Pharmacol Ther. 1972 Jan-Feb;13(1):37-49 [4550322] Eur J Clin Pharmacol. 1971 Sep;3(4):189-93 [5151301] Gut. 1974 Feb;15(2):151-63 [4595082] Arch Toxicol. 1975;33(3):173-89 [1173750] Biochem J. 1974 Sep;141(3):761-74 [4478069] Pediatrics. 1976 Aug;58(2):259-63 [951142] Clin Pharmacokinet. 1976;1(2):81-98 [13955] J Pediatr. 1978 Dec;93(6):965-7 [722441] Carcinogenesis. 1997 Feb;18(2):391-7 [9054634] Physiol Rev. 1997 Apr;77(2):517-44 [9114822] J Womens Health. 1997 Apr;6(2):159-61 [9140851] J Clin Pharmacol. 1997 May;37(5):416-25 [9156374] Am Ind Hyg Assoc J. 1997 Jun;58(6):425-31 [9183837] Toxicol Appl Pharmacol. 1997 Jun;144(2):396-400 [9194424] Cancer Causes Control. 1997 Jul;8(4):554-9 [9242470] Arch Toxicol. 1997;71(9):596-9 [9285043] Biochem Biophys Res Commun. 1997 Sep 18;238(2):443-7 [9299528] J Natl Cancer Inst. 1997 Sep 17;89(18):1360-5 [9308706] Toxicol Appl Pharmacol. 1997 Oct;146(2):189-95 [9344886] Int J Epidemiol. 1997 Oct;26(5):915-23 [9363510] Chest. 1998 Feb;113(2):351-7 [9498951] Occup Environ Med. 1998 Mar;55(3):161-71 [9624267] Epidemiology. 1998 Jul;9(4):424-31 [9647907] Toxicol Appl Pharmacol. 1998 Oct;152(2):339-59 [9853003] Pediatrics. 1961 Aug;28:169-81 [13702099] Pharmacogenetics. 1994 Aug;4(4):185-92 [7987402] Cancer Cells. 1991 Mar;3(3):93-6 [2054261] Mol Pharmacol. 1991 Jul;40(1):58-62 [1906976] Br J Ind Med. 1991 Aug;48(8):515-30 [1878308] Br J Ind Med. 1991 Aug;48(8):531-7 [1878309] Br J Ind Med. 1991 Aug;48(8):548-56 [1878312] Chem Res Toxicol. 1990 Nov-Dec;3(6):566-73 [2103328] Chem Res Toxicol. 1991 Jul-Aug;4(4):391-407 [1912325] J Natl Cancer Inst. 1991 Dec 18;83(24):1820-6 [1660542] Biochem Pharmacol. 1992 Jan 22;43(2):251-7 [1739413] Drug Metab Rev. 1991;23(5-6):493-599 [1802654] Biochem Pharmacol. 1992 Apr 15;43(8):1876-9 [1575782] Crit Rev Toxicol. 1992;22(1):1-21 [1616599] Cancer Res. 1992 Dec 1;52(23):6712-5 [1423319] Hum Genet. 1992 Dec;90(4):395-401 [1362387] Carcinogenesis. 1993 Jan;14(1):85-8 [8093864] Risk Anal. 1993 Feb;13(1):87-95 [8451463] FEBS Lett. 1993 Mar 22;319(3):207-11 [8096192] Int Arch Occup Environ Health. 1993;64(6):445-8 [8458661] Biochem Pharmacol. 1993 Mar 9;45(5):1079-85 [8461037] Crit Rev Toxicol. 1993;23(1):1-20 [8471158] J Am Coll Cardiol. 1993 May;21(6):1466-72 [8473657] Pharmacol Toxicol. 1993;72 Suppl 1:51-4 [8474990] Pharmacogenetics. 1992 Apr;2(2):48-62 [1302043] Cancer Res. 1993 May 15;53(10 Suppl):2313-8 [8485718] Pharmacogenetics. 1992 Aug;2(4):139-47 [1306115] J Natl Cancer Inst. 1993 Jul 21;85(14):1159-64 [8320745] BMJ. 1993 Aug 21;307(6902):481-2 [8400932] Carcinogenesis. 1993 Sep;14(9):1821-4 [8403204] J Pharmacol Exp Ther. 1993 Oct;267(1):560-6 [8229787] J Pharmacol Exp Ther. 1994 Jul;270(1):414-23 [8035341] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The spontaneously hypertensive rat as a model of human cardiovascular disease: evidence of exacerbated cardiopulmonary injury and oxidative stress from inhaled emission particulate matter. AN - 71096211; 10799335 AB - Cardiovascular disease is considered a probable risk factor of particulate matter (PM)-related mortality and morbidity. It was hypothesized that rats with hereditary systemic hypertension and underlying cardiac disease would be more susceptible than healthy normotensive rats to pulmonary injury from inhaled residual oil fly ash (ROFA) PM. Eight spontaneously hypertensive (SH) and eight normotensive Wistar-Kyoto (WKY) rats (12-13 weeks old) were implanted with radiotelemetry transmitters on Day -10 for measurement of electrocardiographic (ECG) waveforms. These and other nonimplanted rats were exposed to filtered air or ROFA (containing leachable toxic levels of metals) on Day 0 by nose-only inhalation (ROFA, 15 mg/m(3) x 6 h/day x 3 days). ECGs were monitored during both exposure and nonexposure periods. At 0 or 18 h post-ROFA exposure, rats were assessed for airway hyperreactivity, pulmonary and cardiac histological lesions, bronchoalveolar lavage fluid (BALF) markers of lung injury, oxidative stress, and cytokine gene expression. Comparisons were made in two areas: (1) underlying cardiopulmonary complications of control SH rats in comparison to control WKY rats; and (2) ROFA-induced cardiopulmonary injury/inflammation and oxidative burden. With respect to the first area, control air-exposed SH rats had higher lung and left ventricular weights when compared to age-matched WKY rats. SH rats had hyporeactive airways to acetylcholine challenge. Lung histology revealed the presence of activated macrophages, neutrophils, and hemorrhage in control SHrats. Consistently, levels of BALF protein, macrophages, neutrophils, and red blood cells were also higher in SH rats. Thiobarbituric acid-reactive material in the BALF of air-exposed SH rats was significantly higher than that of WKY rats. Lung inflammation and lesions were mirrored in the higher basal levels of pulmonary cytokine mRNA expression. Cardiomyopathy and monocytic cell infiltration were apparent in the left ventricle of SH rats, along with increased cytokine expression. ECG demonstrated a depressed ST segment area in SH rats. With regard to the second area of comparison (ROFA-exposed rats), pulmonary histology indicated a slightly exacerbated pulmonary lesions including inflammatory response to ROFA in SH rats compared to WKY rats and ROFA-induced increases in BALF protein and albumin were significantly higher in SH rats than in WKY rats. In addition, ROFA caused an increase in BALF red blood cells in SH rats, indicating increased hemorrhage in the alveolar parenchyma. The number of alveolar macrophages increased more dramatically in SH rats following ROFA exposure, whereas neutrophils increased similarly in both strains. Despite greater pulmonary injury in SH rats, ROFA-induced increases in BALF GSH, ascorbate, and uric acid were attenuated when compared to WKY rats. ROFA inhalation exposure was associated with similar increases in pulmonary mRNA expression of IL-6, cellular fibronectin, and glucose-6-phosphate dehydrogenase (relative to that of beta-actin) in both rat strains. The expression of MIP-2 was increased in WKY but attenuated in SH rats. Thus, SH rats have underlying cardiac and pulmonary complications. When exposed to ROFA, SH rats exhibited exacerbated pulmonary injury, an attenuated antioxidant response, and acute depression in ST segment area of ECG, which is consistent with a greater susceptibility to adverse health effects of fugitive combustion PM. This study shows that the SH rat is a potentially useful model of genetically determined susceptibility with pulmonary and cardiovascular complications. JF - Toxicology and applied pharmacology AU - Kodavanti, U P AU - Schladweiler, M C AU - Ledbetter, A D AU - Watkinson, W P AU - Campen, M J AU - Winsett, D W AU - Richards, J R AU - Crissman, K M AU - Hatch, G E AU - Costa, D L AD - Pulmonary Toxicology Branch, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, 27711, USA. Y1 - 2000/05/01/ PY - 2000 DA - 2000 May 01 SP - 250 EP - 263 VL - 164 IS - 3 SN - 0041-008X, 0041-008X KW - Air Pollutants KW - 0 KW - Coal Ash KW - Cytokines KW - Particulate Matter KW - RNA, Messenger KW - Thiobarbituric Acid Reactive Substances KW - Carbon KW - 7440-44-0 KW - Index Medicus KW - Respiratory Function Tests KW - Animals KW - Cytokines -- genetics KW - Rats, Inbred WKY KW - Rats, Inbred SHR KW - Myocardium -- pathology KW - Erythrocytes KW - RNA, Messenger -- analysis KW - Thiobarbituric Acid Reactive Substances -- analysis KW - Lung -- pathology KW - Organ Size KW - Rats KW - Bronchoalveolar Lavage Fluid -- chemistry KW - Electrocardiography KW - Bronchoalveolar Lavage Fluid -- cytology KW - Male KW - Lung Diseases -- etiology KW - Oxidative Stress KW - Disease Models, Animal KW - Air Pollutants -- toxicity KW - Heart Diseases -- etiology KW - Carbon -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71096211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+and+applied+pharmacology&rft.atitle=The+spontaneously+hypertensive+rat+as+a+model+of+human+cardiovascular+disease%3A+evidence+of+exacerbated+cardiopulmonary+injury+and+oxidative+stress+from+inhaled+emission+particulate+matter.&rft.au=Kodavanti%2C+U+P%3BSchladweiler%2C+M+C%3BLedbetter%2C+A+D%3BWatkinson%2C+W+P%3BCampen%2C+M+J%3BWinsett%2C+D+W%3BRichards%2C+J+R%3BCrissman%2C+K+M%3BHatch%2C+G+E%3BCosta%2C+D+L&rft.aulast=Kodavanti&rft.aufirst=U&rft.date=2000-05-01&rft.volume=164&rft.issue=3&rft.spage=250&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+applied+pharmacology&rft.issn=0041008X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-07 N1 - Date created - 2000-06-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Diminished injury in hypotransferrinemic mice after exposure to a metal-rich particle. AN - 71066282; 10781438 AB - Using the hypotransferrinemic (Hp) mouse model, we studied the effect of altered iron homeostasis on the defense of the lung against a catalytically active metal. The homozygotic (hpx/hpx) Hp mice had greatly diminished concentrations of both serum and lavage fluid transferrin relative to wild-type mice and heterozygotes. Fifty micrograms of a particle containing abundant concentrations of metals (a residual oil fly ash) was instilled into wild-type mice and heterozygotic and homozygotic Hp animals. There was an oxidative stress associated with particle exposure as manifested by decreased lavage fluid concentrations of ascorbate. However, rather than an increase in lung injury, diminished transferrin concentrations in homozygotic Hp mice were associated with decreased indexes of damage, including concentrations of relevant cytokines, inflammatory cell influx, lavage fluid protein, and lavage fluid lactate dehydrogenase. Comparable to other organs in the homozygotic Hp mouse, siderosis of the lung was evident, with elevated concentrations of lavage fluid and tissue iron. Consequent to these increased concentrations of iron, proteins to store and transport iron, ferritin, and lactoferrin, respectively, were increased when assayed by immunoprecipitation and immunohistochemistry. We conclude that the lack of transferrin in Hp mice did not predispose the animals to lung injury after exposure to a particle abundant in metals. Rather, these mice demonstrated a diminished injury that was associated with an increase in the metal storage and transport proteins. JF - American journal of physiology. Lung cellular and molecular physiology AU - Ghio, A J AU - Carter, J D AU - Richards, J H AU - Crissman, K M AU - Bobb, H H AU - Yang, F AD - National Health and Environmental Effects Research Laboratory, Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. ghio.andy@epa.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - L1051 EP - L1061 VL - 278 IS - 5 SN - 1040-0605, 1040-0605 KW - Coal Ash KW - 0 KW - Oxidants KW - Particulate Matter KW - Transferrin KW - Carbon KW - 7440-44-0 KW - Ferritins KW - 9007-73-2 KW - Iron KW - E1UOL152H7 KW - Lactoferrin KW - EC 3.4.21.- KW - Index Medicus KW - Carbon -- pharmacology KW - Animals KW - RNA Splicing KW - Lung -- chemistry KW - Mice, Inbred BALB C KW - Epithelial Cells -- metabolism KW - Bronchoalveolar Lavage Fluid -- chemistry KW - Heterozygote KW - Point Mutation KW - Bronchoalveolar Lavage Fluid -- cytology KW - Male KW - Air Pollution KW - Ferritins -- analysis KW - Electrophoresis KW - Homozygote KW - Lung -- cytology KW - Mice KW - Lung -- metabolism KW - Gene Deletion KW - Epithelial Cells -- chemistry KW - Mice, Mutant Strains KW - Epithelial Cells -- drug effects KW - Lactoferrin -- analysis KW - Siderosis -- metabolism KW - Female KW - Transferrin -- metabolism KW - Oxidants -- pharmacology KW - Iron -- pharmacology KW - Transferrin -- genetics KW - Transferrin -- analysis KW - Oxidants -- metabolism KW - Iron -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71066282?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+journal+of+physiology.+Lung+cellular+and+molecular+physiology&rft.atitle=Diminished+injury+in+hypotransferrinemic+mice+after+exposure+to+a+metal-rich+particle.&rft.au=Ghio%2C+A+J%3BCarter%2C+J+D%3BRichards%2C+J+H%3BCrissman%2C+K+M%3BBobb%2C+H+H%3BYang%2C+F&rft.aulast=Ghio&rft.aufirst=A&rft.date=2000-05-01&rft.volume=278&rft.issue=5&rft.spage=L1051&rft.isbn=&rft.btitle=&rft.title=American+journal+of+physiology.+Lung+cellular+and+molecular+physiology&rft.issn=10400605&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-01 N1 - Date created - 2000-06-01 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Mono- to tri-chlorinated dibenzodioxin (CDD) and dibenzofuran (CDF) congeners/homologues as indicators of CDD and CDF emissions from municipal waste and waste/coal combustion. AN - 70990348; 10739040 AB - Total homologue concentrations and select congener concentrations from amongst the mono- to tri-chlorinated dibenzodioxins (CDDs) and dibenzofurans (CDFs) are used to model both Total (mono- to octa-) CDD + CDF emissions and the toxicity equivalent (TEQ) of the 2,3,7,8-chlorine-substituted emissions. Analysis of emission data from two facilities indicates that use of total homologue concentrations shows limited, facility-specific correlations with Total CDDs/CDFs and TEQ. Concentrations of select mono- to tri-CDD/CDF congeners show promising correlation with CDD/CDF TEQ across facilities, suggesting that these compounds can act as TEQ indicators. JF - Chemosphere AU - Gullett, B K AU - Wikström, E AD - National Risk Management Research Laboratory, Air Pollution Prevention & Control Division, US Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. gullett.brian@epa.gov PY - 2000 SP - 1015 EP - 1019 VL - 40 IS - 9-11 SN - 0045-6535, 0045-6535 KW - Benzofurans KW - 0 KW - Coal KW - Dibenzofurans, Polychlorinated KW - Polychlorinated Dibenzodioxins KW - Waste Products KW - Index Medicus KW - Polychlorinated Dibenzodioxins -- analogs & derivatives KW - Polychlorinated Dibenzodioxins -- analysis KW - Incineration KW - Benzofurans -- analysis KW - Waste Products -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70990348?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere&rft.atitle=Mono-+to+tri-chlorinated+dibenzodioxin+%28CDD%29+and+dibenzofuran+%28CDF%29+congeners%2Fhomologues+as+indicators+of+CDD+and+CDF+emissions+from+municipal+waste+and+waste%2Fcoal+combustion.&rft.au=Gullett%2C+B+K%3BWikstr%C3%B6m%2C+E&rft.aulast=Gullett&rft.aufirst=B&rft.date=2000-05-01&rft.volume=40&rft.issue=9-11&rft.spage=1015&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=00456535&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-05-11 N1 - Date created - 2000-05-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Municipal solid waste slope failure; I, Waste and foundation soil properties AN - 52339569; 2000-051479 AB - This paper describes a slope failure in a municipal solid waste landfill, with lateral and vertical displacements of up to 275 and 61 m, respectively. The wasteslide involved approximately 1.2 million m (super 3) of waste, making it the largest landfill slope failure to occur in the United States. Failure developed through the weak native soil underlying the waste. The analyses and related studies conducted to determine the cause of the failure are the subject of this and a companion paper by Stark et al. (2000). To facilitate the analyses, this paper investigates shear strength of municipal solid waste using field and laboratory test results and back-analysis of failed waste slopes. It also presents details of a geological study and laboratory testing program undertaken to quantify the mobilized shear strength of the weak native soil. JF - Journal of Geotechnical and Geoenvironmental Engineering AU - Eid, Hisham T AU - Stark, Timothy D AU - Evans, W Douglas AU - Sherry, Paul E Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 397 EP - 407 PB - American Society of Civil Engineers, New York, NY VL - 126 IS - 5 SN - 1090-0241, 1090-0241 KW - United States KW - limestone KW - shear strength KW - landfills KW - Grant Lake Formation KW - Ordovician KW - laboratory studies KW - sedimentary rocks KW - Hamilton County Ohio KW - sediments KW - solid waste KW - sanitary landfills KW - Ohio KW - soils KW - bedrock KW - soil mechanics KW - failures KW - colluvium KW - clastic sediments KW - shale KW - Paleozoic KW - Brown soils KW - boreholes KW - waste disposal KW - carbonate rocks KW - slope stability KW - clastic rocks KW - field studies KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52339569?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geotechnical+and+Geoenvironmental+Engineering&rft.atitle=Municipal+solid+waste+slope+failure%3B+I%2C+Waste+and+foundation+soil+properties&rft.au=Eid%2C+Hisham+T%3BStark%2C+Timothy+D%3BEvans%2C+W+Douglas%3BSherry%2C+Paul+E&rft.aulast=Eid&rft.aufirst=Hisham&rft.date=2000-05-01&rft.volume=126&rft.issue=5&rft.spage=397&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geotechnical+and+Geoenvironmental+Engineering&rft.issn=10900241&rft_id=info:doi/ L2 - http://scitation.aip.org/gto LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 71 N1 - PubXState - NY N1 - Document feature - illus. incl. sect., sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - JGENDZ N1 - SubjectsTermNotLitGenreText - bedrock; boreholes; Brown soils; carbonate rocks; clastic rocks; clastic sediments; colluvium; failures; field studies; Grant Lake Formation; Hamilton County Ohio; laboratory studies; landfills; limestone; Ohio; Ordovician; Paleozoic; sanitary landfills; sedimentary rocks; sediments; shale; shear strength; slope stability; soil mechanics; soils; solid waste; United States; waste disposal ER - TY - JOUR T1 - Simulated influences of Lake Agassiz on the climate of central North America 11,000 years ago AN - 52288793; 2000-077994 JF - Nature (London) AU - Hostetler, S W AU - Bartlein, P J AU - Clark, P U AU - Small, E E AU - Solomon, A M Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 334 EP - 336 PB - Macmillan Journals, London VL - 405 IS - 6784 SN - 0028-0836, 0028-0836 KW - Laurentide ice sheet KW - glacial extent KW - data processing KW - atmospheric precipitation KW - paleoclimatology KW - climate change KW - temperature KW - upper Pleistocene KW - orbital forcing KW - Cenozoic KW - upper Weichselian KW - Weichselian KW - mass balance KW - digital simulation KW - Younger Dryas KW - climate forcing KW - North America KW - general circulation models KW - Quaternary KW - Lake Agassiz KW - GENESIS model KW - ice sheets KW - extinct lakes KW - Pleistocene KW - glacial geology KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52288793?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=Simulated+influences+of+Lake+Agassiz+on+the+climate+of+central+North+America+11%2C000+years+ago&rft.au=Hostetler%2C+S+W%3BBartlein%2C+P+J%3BClark%2C+P+U%3BSmall%2C+E+E%3BSolomon%2C+A+M&rft.aulast=Hostetler&rft.aufirst=S&rft.date=2000-05-01&rft.volume=405&rft.issue=6784&rft.spage=334&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/ L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 30 N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; Cenozoic; climate change; climate forcing; data processing; digital simulation; extinct lakes; general circulation models; GENESIS model; glacial extent; glacial geology; ice sheets; Lake Agassiz; Laurentide ice sheet; mass balance; North America; orbital forcing; paleoclimatology; Pleistocene; Quaternary; temperature; upper Pleistocene; upper Weichselian; Weichselian; Younger Dryas ER - TY - JOUR T1 - Determining the source(s) of metals in the environment using microanalysis AN - 52275930; 2001-008718 JF - Metal Ions in Biology and Medicine = Les Ions Metalliques en Biologie et en Medecine AU - Kolker, Allan AU - Belkin, Harvey E AU - Finkelman, Robert B AU - Centeno, Jose A AU - Collery, Philippe AU - Vernet, Guy AU - Gibb, Herman AU - Etienne, Jean-Claude Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 202 EP - 204 PB - John Libbey Eurotext, Montrouge VL - 6 SN - 1257-2535, 1257-2535 KW - United States KW - Guizhou China KW - Far East KW - techniques KW - southeastern Michigan KW - Marshall Aquifer KW - environmental analysis KW - drinking water KW - ground water KW - toxicity KW - Asia KW - China KW - concentration KW - toxic materials KW - biochemistry KW - arsenic KW - pollution KW - detection KW - metals KW - Michigan KW - scanning electron microscopy KW - electron microscopy KW - SEM data KW - point sources KW - instruments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52275930?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.atitle=Determining+the+source%28s%29+of+metals+in+the+environment+using+microanalysis&rft.au=Kolker%2C+Allan%3BBelkin%2C+Harvey+E%3BFinkelman%2C+Robert+B%3BCenteno%2C+Jose+A%3BCollery%2C+Philippe%3BVernet%2C+Guy%3BGibb%2C+Herman%3BEtienne%2C+Jean-Claude&rft.aulast=Kolker&rft.aufirst=Allan&rft.date=2000-05-01&rft.volume=6&rft.issue=&rft.spage=202&rft.isbn=2742002944&rft.btitle=&rft.title=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.issn=12572535&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sixth international symposium on Metal ions in biology and medicine N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 4 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - arsenic; Asia; biochemistry; China; concentration; detection; drinking water; electron microscopy; environmental analysis; Far East; ground water; Guizhou China; instruments; Marshall Aquifer; metals; Michigan; point sources; pollution; scanning electron microscopy; SEM data; southeastern Michigan; techniques; toxic materials; toxicity; United States ER - TY - JOUR T1 - Sixth international symposium on Metal ions in biology and medicine AN - 52275880; 2001-008713 JF - Metal Ions in Biology and Medicine = Les Ions Metalliques en Biologie et en Medecine AU - Centeno, Jose A AU - Collery, Philippe AU - Vernet, Guy AU - Finkelman, Robert B AU - Gibb, Herman AU - Etienne, Jean-Claude Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 816 PB - John Libbey Eurotext, Montrouge VL - 6 SN - 1257-2535, 1257-2535 KW - soils KW - water quality KW - toxic materials KW - medical geology KW - biochemistry KW - arsenic KW - pollution KW - ions KW - remediation KW - nutrients KW - carcinogens KW - organic compounds KW - toxicity KW - symposia KW - metals KW - chemical properties KW - ecology KW - heavy metals KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52275880?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.atitle=Sixth+international+symposium+on+Metal+ions+in+biology+and+medicine&rft.au=Centeno%2C+Jose+A%3BCollery%2C+Philippe%3BVernet%2C+Guy%3BFinkelman%2C+Robert+B%3BGibb%2C+Herman%3BEtienne%2C+Jean-Claude&rft.aulast=Centeno&rft.aufirst=Jose&rft.date=2000-05-01&rft.volume=6&rft.issue=&rft.spage=&rft.isbn=2742002944&rft.btitle=&rft.title=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.issn=12572535&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sixth international symposium on Metal ions in biology and medicine N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Document feature - illus. N1 - SuppNotes - Individual papers within scope are cited separately N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - arsenic; biochemistry; carcinogens; chemical properties; ecology; heavy metals; ions; medical geology; metals; nutrients; organic compounds; pollution; remediation; soils; symposia; toxic materials; toxicity; water quality ER - TY - JOUR T1 - Arsenic in ground water of the United States AN - 52274516; 2001-008714 JF - Metal Ions in Biology and Medicine = Les Ions Metalliques en Biologie et en Medecine AU - Welch, Alan H AU - Centeno, Jose A AU - Collery, Philippe AU - Vernet, Guy AU - Finkelman, Robert B AU - Gibb, Herman AU - Etienne, Jean-Claude Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 31 PB - John Libbey Eurotext, Montrouge VL - 6 SN - 1257-2535, 1257-2535 KW - United States KW - water quality KW - desorption KW - terrestrial environment KW - agricultural waste KW - iron oxides KW - semi-arid environment KW - irrigation KW - ground water KW - oxides KW - reduction KW - trace elements KW - nitrate ion KW - concentration KW - toxic materials KW - arid environment KW - oxidation KW - arsenic KW - solutes KW - pollution KW - phosphorus KW - organic compounds KW - metals KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52274516?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.atitle=Arsenic+in+ground+water+of+the+United+States&rft.au=Welch%2C+Alan+H%3BCenteno%2C+Jose+A%3BCollery%2C+Philippe%3BVernet%2C+Guy%3BFinkelman%2C+Robert+B%3BGibb%2C+Herman%3BEtienne%2C+Jean-Claude&rft.aulast=Welch&rft.aufirst=Alan&rft.date=2000-05-01&rft.volume=6&rft.issue=&rft.spage=31&rft.isbn=2742002944&rft.btitle=&rft.title=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.issn=12572535&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sixth international symposium on Metal ions in biology and medicine N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - agricultural waste; arid environment; arsenic; concentration; desorption; ground water; iron oxides; irrigation; metals; nitrate ion; organic compounds; oxidation; oxides; phosphorus; pollution; reduction; semi-arid environment; solutes; terrestrial environment; toxic materials; trace elements; United States; waste disposal; water quality ER - TY - JOUR T1 - Natural sources of metals to the environment AN - 52273543; 2001-008719 JF - Metal Ions in Biology and Medicine = Les Ions Metalliques en Biologie et en Medecine AU - Garrett, Robert G AU - Centeno, Jose A AU - Collery, Philippe AU - Vernet, Guy AU - Finkelman, Robert B AU - Gibb, Herman AU - Etienne, Jean-Claude Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 508 EP - 510 PB - John Libbey Eurotext, Montrouge VL - 6 SN - 1257-2535, 1257-2535 KW - zinc KW - copper KW - pollutants KW - background level KW - arsenic KW - pollution KW - lead KW - provenance KW - metals KW - nickel KW - industrial waste KW - cadmium KW - waste disposal KW - point sources KW - heavy metals KW - mercury KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52273543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.atitle=Natural+sources+of+metals+to+the+environment&rft.au=Garrett%2C+Robert+G%3BCenteno%2C+Jose+A%3BCollery%2C+Philippe%3BVernet%2C+Guy%3BFinkelman%2C+Robert+B%3BGibb%2C+Herman%3BEtienne%2C+Jean-Claude&rft.aulast=Garrett&rft.aufirst=Robert&rft.date=2000-05-01&rft.volume=6&rft.issue=&rft.spage=508&rft.isbn=2742002944&rft.btitle=&rft.title=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.issn=12572535&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sixth international symposium on Metal ions in biology and medicine N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 7 N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - arsenic; background level; cadmium; copper; heavy metals; industrial waste; lead; mercury; metals; nickel; point sources; pollutants; pollution; provenance; waste disposal; zinc ER - TY - JOUR T1 - Trace elements concentration in sediments and some commercially important marine fishes & shell fishes of Chittagong coast, Bangladesh AN - 52272967; 2001-008717 AB - A study was carried out to determine distribution of trace metals (Cd, Zn, Ni, Pb, Cu, Mn, Fe, Cr) concentration in sediment and in some commercially important marine fishes (Hg, Pb, As, Se, Cd, Zn, Cr, Fe, Ni, Cu) of the Chittagong Coast by employing Neutron Activation Analysis (NAA) and Atomic Absorption Spectrophotometer. In sediments metal concentration (mu g.g (super -1) dry weight) were found to range from 0.49 to 0.89 for Cd, 62.80 to 162.30 for Zn, 23.29 to 68.11 for Ni, 16.00 to 142.90 for Pb, 18.05 to 48.30 for Cu, 276.88 to 954.43 for Zn, 852.50 to 5250.90 for Fe and 18.30 to 121.30 for Cr. The mean values of Cd, Zn, Pb, Cu and Cr were recorded higher level in the investigated region than those of GESAMP Standards. Five species of fishes (Setpinna phassa, Harpodon nehereus, Lates Calcarifer, Pangasius pangasius, Johnius argentatus) were collected from the investigated area. Metal concentration in muscle of the fishes were performed seasonally. In muscle of the fishes, metal levels (mu g.g (super -1) dry weight) ranged from 0.069 to 0.637 for Hg, 0.677 to 4.019 for Pb, 0.025 to 3.582 for As, 1.926 to 6.725 for Se, 0.075 to 0.743 for Cd, 25.76 to 121.03 for Zn, 0.446 to 10.182 for Cr, 31.029 to 278.550 for Fe, 0.723 to 6.414 for Ni and 0.647 to 7.610 for Cu. The levels obtained for trace metals were found much higher in the ship-breaking area in comparison with the Karnaphuli River Estuary. As per analysis and subsequent determinations the ship-breaking area has been indicated as polluted zone. JF - Metal Ions in Biology and Medicine = Les Ions Metalliques en Biologie et en Medecine AU - Abul Kashem, Mohammed AU - Khan, Yusuf Sharif Ahmed AU - Alamgir, Mohammed AU - Centeno, Jose A AU - Collery, Philippe AU - Vernet, Guy AU - Finkelman, Robert B AU - Gibb, Herman AU - Etienne, Jean-Claude Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 173 EP - 176 PB - John Libbey Eurotext, Montrouge VL - 6 SN - 1257-2535, 1257-2535 KW - zinc KW - copper KW - lead KW - manganese KW - environmental analysis KW - bioaccumulation KW - Indian Peninsula KW - sediments KW - cadmium KW - trace elements KW - estuarine environment KW - Asia KW - Bangladesh KW - Karnafully River KW - concentration KW - toxic materials KW - pollutants KW - pollution KW - biota KW - metals KW - nickel KW - industrial waste KW - coastal environment KW - Chittagong Bangladesh KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52272967?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.atitle=Trace+elements+concentration+in+sediments+and+some+commercially+important+marine+fishes+%26amp%3B+shell+fishes+of+Chittagong+coast%2C+Bangladesh&rft.au=Abul+Kashem%2C+Mohammed%3BKhan%2C+Yusuf+Sharif+Ahmed%3BAlamgir%2C+Mohammed%3BCenteno%2C+Jose+A%3BCollery%2C+Philippe%3BVernet%2C+Guy%3BFinkelman%2C+Robert+B%3BGibb%2C+Herman%3BEtienne%2C+Jean-Claude&rft.aulast=Abul+Kashem&rft.aufirst=Mohammed&rft.date=2000-05-01&rft.volume=6&rft.issue=&rft.spage=173&rft.isbn=2742002944&rft.btitle=&rft.title=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.issn=12572535&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sixth international symposium on Metal ions in biology and medicine N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 15 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Asia; Bangladesh; bioaccumulation; biota; cadmium; Chittagong Bangladesh; coastal environment; concentration; copper; environmental analysis; estuarine environment; Indian Peninsula; industrial waste; Karnafully River; lead; manganese; metals; nickel; pollutants; pollution; sediments; toxic materials; trace elements; waste disposal; zinc ER - TY - JOUR T1 - Phytoremediation of metal-contaminated soils; Jackson State University research initiatives AN - 52272887; 2001-008721 AB - Phytoextraction is becoming popular as a cost-effective and environmentally sound phytoremediation strategy for reducing toxic metal levels from contaminated soils. Cognizant of the potential of this phytoremediation technique as an alternative to expensive remediation technologies, a series of experiments were conducted to evaluate the suitability of some plants as phytoextraction species. Based from a > or =60% translocation index (shoot metal uptake * 100/total plant metal uptake), four species (Ipomoea lacunosa, Sesbania exaltata, Brassica napus, Brassica campestris rapifera) exhibited tolerance and significant accumulation of Pb or Cd into their shoots. In another experiment, the translocation of Pb to the shoots of I. lacunosa was enhanced by the addition of 5 mM ethylenediaminetetraacetic acid (EDTA). At each level of applied Pb, the amount of residual soil Pb after harvest decreased with increasing concentration of EDTA. Research initiatives are underway which are geared toward maximization of metal translocation to the shoots of other promising species. JF - Metal Ions in Biology and Medicine = Les Ions Metalliques en Biologie et en Medecine AU - Begonia, Gregorio B AU - Begonia, Maria T AU - Miller, Gloria L AU - Kambhampati, Murty AU - Centeno, Jose A AU - Collery, Philippe AU - Vernet, Guy AU - Finkelman, Robert B AU - Gibb, Herman AU - Etienne, Jean-Claude Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 672 EP - 674 PB - John Libbey Eurotext, Montrouge VL - 6 SN - 1257-2535, 1257-2535 KW - soils KW - toxic materials KW - experimental studies KW - pollutants KW - complexing KW - soil treatment KW - pollution KW - solubility KW - bioremediation KW - remediation KW - bioaccumulation KW - nutrients KW - chelation KW - phytoremediation KW - heavy metals KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52272887?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.atitle=Phytoremediation+of+metal-contaminated+soils%3B+Jackson+State+University+research+initiatives&rft.au=Begonia%2C+Gregorio+B%3BBegonia%2C+Maria+T%3BMiller%2C+Gloria+L%3BKambhampati%2C+Murty%3BCenteno%2C+Jose+A%3BCollery%2C+Philippe%3BVernet%2C+Guy%3BFinkelman%2C+Robert+B%3BGibb%2C+Herman%3BEtienne%2C+Jean-Claude&rft.aulast=Begonia&rft.aufirst=Gregorio&rft.date=2000-05-01&rft.volume=6&rft.issue=&rft.spage=672&rft.isbn=2742002944&rft.btitle=&rft.title=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.issn=12572535&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sixth international symposium on Metal ions in biology and medicine N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 9 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bioaccumulation; bioremediation; chelation; complexing; experimental studies; heavy metals; nutrients; phytoremediation; pollutants; pollution; remediation; soil treatment; soils; solubility; toxic materials ER - TY - JOUR T1 - Heavy metals in sediments and water from San Jose and Joyuda lagoons in Puerto Rico AN - 52272565; 2001-008716 JF - Metal Ions in Biology and Medicine = Les Ions Metalliques en Biologie et en Medecine AU - Acevedo, David AU - Rodriguez-Sierra, Carlos J AU - Reyes, Darwin R AU - Jimenez, Braulio D AU - Centeno, Jose A AU - Collery, Philippe AU - Vernet, Guy AU - Finkelman, Robert B AU - Gibb, Herman AU - Etienne, Jean-Claude Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 169 EP - 172 PB - John Libbey Eurotext, Montrouge VL - 6 SN - 1257-2535, 1257-2535 KW - hazardous waste KW - zinc KW - Greater Antilles KW - selenium KW - copper KW - lead KW - ecosystems KW - environmental analysis KW - bioaccumulation KW - toxicity KW - Puerto Rico KW - sediments KW - cadmium KW - heavy metals KW - mercury KW - concentration KW - shore features KW - pollutants KW - surface water KW - arsenic KW - West Indies KW - San Jose Lagoon KW - pollution KW - Caribbean region KW - biota KW - fluctuations KW - Antilles KW - metals KW - industrial waste KW - lagoonal environment KW - risk assessment KW - seasonal variations KW - lagoons KW - waste disposal KW - Joyuda Lagoon KW - aquatic environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52272565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.atitle=Heavy+metals+in+sediments+and+water+from+San+Jose+and+Joyuda+lagoons+in+Puerto+Rico&rft.au=Acevedo%2C+David%3BRodriguez-Sierra%2C+Carlos+J%3BReyes%2C+Darwin+R%3BJimenez%2C+Braulio+D%3BCenteno%2C+Jose+A%3BCollery%2C+Philippe%3BVernet%2C+Guy%3BFinkelman%2C+Robert+B%3BGibb%2C+Herman%3BEtienne%2C+Jean-Claude&rft.aulast=Acevedo&rft.aufirst=David&rft.date=2000-05-01&rft.volume=6&rft.issue=&rft.spage=169&rft.isbn=2742002944&rft.btitle=&rft.title=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.issn=12572535&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sixth international symposium on Metal ions in biology and medicine N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 7 N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Antilles; aquatic environment; arsenic; bioaccumulation; biota; cadmium; Caribbean region; concentration; copper; ecosystems; environmental analysis; fluctuations; Greater Antilles; hazardous waste; heavy metals; industrial waste; Joyuda Lagoon; lagoonal environment; lagoons; lead; mercury; metals; pollutants; pollution; Puerto Rico; risk assessment; San Jose Lagoon; seasonal variations; sediments; selenium; shore features; surface water; toxicity; waste disposal; West Indies; zinc ER - TY - JOUR T1 - Reducing bioavailability of lead-contaminated urban soil with mineral or biosolid treatment AN - 52272203; 2001-008720 JF - Metal Ions in Biology and Medicine = Les Ions Metalliques en Biologie et en Medecine AU - Hallfrish, Judith AU - Qi, Xue AU - Veillon, Claude AU - Patterson, Kristine AU - Conway, Joan M AU - Brown, Sally AU - Chaney, Rufus AU - Centeno, Jose A AU - Collery, Philippe AU - Vernet, Guy AU - Finkelman, Robert B AU - Gibb, Herman AU - Etienne, Jean-Claude Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 655 EP - 657 PB - John Libbey Eurotext, Montrouge VL - 6 SN - 1257-2535, 1257-2535 KW - soils KW - medical geology KW - pollutants KW - lead poisoning KW - soil treatment KW - pollution KW - lead KW - bioavailability KW - urban environment KW - remediation KW - bioaccumulation KW - detection KW - metals KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52272203?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.atitle=Reducing+bioavailability+of+lead-contaminated+urban+soil+with+mineral+or+biosolid+treatment&rft.au=Hallfrish%2C+Judith%3BQi%2C+Xue%3BVeillon%2C+Claude%3BPatterson%2C+Kristine%3BConway%2C+Joan+M%3BBrown%2C+Sally%3BChaney%2C+Rufus%3BCenteno%2C+Jose+A%3BCollery%2C+Philippe%3BVernet%2C+Guy%3BFinkelman%2C+Robert+B%3BGibb%2C+Herman%3BEtienne%2C+Jean-Claude&rft.aulast=Hallfrish&rft.aufirst=Judith&rft.date=2000-05-01&rft.volume=6&rft.issue=&rft.spage=655&rft.isbn=2742002944&rft.btitle=&rft.title=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.issn=12572535&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sixth international symposium on Metal ions in biology and medicine N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 7 N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bioaccumulation; bioavailability; detection; lead; lead poisoning; medical geology; metals; pollutants; pollution; remediation; soil treatment; soils; urban environment ER - TY - JOUR T1 - Arsenic dissolution and speciation in groundwater of Southeast Michigan AN - 52271693; 2001-008715 AB - Groundwater samples were collected in nine counties of southeast Michigan in 1997. The highest arsenic concentration detected was 278 mu g/L, the average being 29 mu . Most of the arsenic was found to be As(III). A new well was drilled in Bad Axe, Huron County, Michigan, and core samples were taken at different depths. Arsenic leaching experiments were conducted with the core samples using several chemicals under various conditions. It was found that arsenic leaching increased with NaHCO (sub 3) concentration in water. It is concluded that most arsenic is leached as As(III), As(V) or As-carbonate complex from arsenian pyrite or orpiment into the groundwater of the study area. JF - Metal Ions in Biology and Medicine = Les Ions Metalliques en Biologie et en Medecine AU - Kim, Myoung-Jin AU - Nriagu, Jerome AU - Haack, Sheridan K AU - Centeno, Jose A AU - Collery, Philippe AU - Vernet, Guy AU - Finkelman, Robert B AU - Gibb, Herman AU - Etienne, Jean-Claude Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 41 EP - 43 PB - John Libbey Eurotext, Montrouge VL - 6 SN - 1257-2535, 1257-2535 KW - United States KW - Michigan Lower Peninsula KW - concentration KW - toxic materials KW - arsenic KW - solutes KW - pollution KW - Huron County Michigan KW - solubility KW - bicarbonate ion KW - southwestern Michigan KW - environmental analysis KW - drinking water KW - orpiment KW - ground water KW - aquifers KW - metals KW - shallow aquifers KW - Michigan KW - leaching KW - sulfides KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52271693?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.atitle=Arsenic+dissolution+and+speciation+in+groundwater+of+Southeast+Michigan&rft.au=Kim%2C+Myoung-Jin%3BNriagu%2C+Jerome%3BHaack%2C+Sheridan+K%3BCenteno%2C+Jose+A%3BCollery%2C+Philippe%3BVernet%2C+Guy%3BFinkelman%2C+Robert+B%3BGibb%2C+Herman%3BEtienne%2C+Jean-Claude&rft.aulast=Kim&rft.aufirst=Myoung-Jin&rft.date=2000-05-01&rft.volume=6&rft.issue=&rft.spage=41&rft.isbn=2742002944&rft.btitle=&rft.title=Metal+Ions+in+Biology+and+Medicine+%3D+Les+Ions+Metalliques+en+Biologie+et+en+Medecine&rft.issn=12572535&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sixth international symposium on Metal ions in biology and medicine N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 5 N1 - Document feature - illus. N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - aquifers; arsenic; bicarbonate ion; chemical fractionation; concentration; drinking water; environmental analysis; ground water; Huron County Michigan; leaching; metals; Michigan; Michigan Lower Peninsula; orpiment; pollution; shallow aquifers; solubility; solutes; southwestern Michigan; sulfides; toxic materials; United States ER - TY - JOUR T1 - A diagenetic model for sediment-seagrass interactions AN - 52224502; 2001-042612 AB - The objective of this modeling effort was to better understand the dynamic relationship between seagrass beds and their sedimentary environment using a diagenetic model. The model was developed and optimized for sediments in the Laguna Madre, Texas, which is one of the world's largest ( approximately 140 km long) negative estuaries with close to 85% of the basin floor covered with seagrass beds. Although high levels of organic matter decomposition occur in the near-surface sediments, the model was unable to produce enough metabolism to satisfy dissolved inorganic carbon (DIC) profiles from organic matter oxidation alone. Carbon isotope analyses of DIC verified that carbonate mineral dissolution contributes more than 50% of DIC added to porewaters during early diagenesis and is especially important below approximately 5 cm. In comparison to unvegetated areas, a common characteristic of seagrass bed sediments was their low sulfide concentrations in the seagrass rootzone. Model simulations indicate that rootzone fluxes of O (sub 2) are essential to maintaining non-toxic levels of sulfide and consequently promote healthy conditions for seagrass growth. Further, the model simulations suggest that the position of maximum organic matter metabolism relative to the position of the seagrass rootzone can be used to predict several properties of seagrass sediment geochemistry. These predictions include the comparative role of anaerobic and aerobic metabolism, the sulfide to ammonium ratio, and the presence or absences of sulfides in the rootzone. In summary, the results of this model clearly demonstrate a dynamic interaction between seagrasses and diagenetic processes in the underlying sediments. The primary impact of these interactions is to lower sedimentary sulfide concentrations below toxic levels for seagrasses. Such interactions not only modify the sedimentary record but also play an important role influencing the health and productivity of seagrasses. JF - Marine Chemistry AU - Eldridge, Peter M AU - Morse, John W A2 - Sharma, Virender K. Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 89 EP - 103 PB - Elsevier, Amsterdam VL - 70 IS - 1-3 SN - 0304-4203, 0304-4203 KW - United States KW - ammonium KW - sediment-seagrass interface KW - metabolism KW - Texas KW - Gulf Coastal Plain KW - aerobic environment KW - models KW - Kenedy County Texas KW - chemical reactions KW - diagenesis KW - sediments KW - seagrass KW - anaerobic environment KW - sulfides KW - Laguna Madre KW - geochemistry KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52224502?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Chemistry&rft.atitle=A+diagenetic+model+for+sediment-seagrass+interactions&rft.au=Eldridge%2C+Peter+M%3BMorse%2C+John+W&rft.aulast=Eldridge&rft.aufirst=Peter&rft.date=2000-05-01&rft.volume=70&rft.issue=1-3&rft.spage=89&rft.isbn=&rft.btitle=&rft.title=Marine+Chemistry&rft.issn=03044203&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03044203 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2001-01-01 N1 - Number of references - 28 N1 - Document feature - 8 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MRCHBD N1 - SubjectsTermNotLitGenreText - aerobic environment; ammonium; anaerobic environment; chemical reactions; diagenesis; geochemistry; Gulf Coastal Plain; Kenedy County Texas; Laguna Madre; metabolism; models; seagrass; sediment-seagrass interface; sediments; sulfides; Texas; United States ER - TY - JOUR T1 - Distribution, hydrologic transport, and cycling of total mercury and methyl mercury in a contaminated river-reservoir-wetland system (Sudbury River, eastern Massachusetts) AN - 51020728; 2008-087453 AB - Riparian wetlands contaminated with Hg from an industrial point source were found to be important sites of production and release of methyl mercury (MeHg) in a 40-km reach of the Sudbury River in eastern Massachusetts. Stream discharge and concentration measurements were used to calculate annual mean loads for total Hg (SHg) and MeHg in contaminated river reaches, a reservoir, and a riparian wetland downstream from the industrial source. Budgets based on these loads indicate that the annual mean SHg load increased sixfold in a reach receiving flow from the point source, but the annual mean MeHg load did not increase. About 23% of the SHg load was removed by sedimentation during flow through the reservoir. Net production of MeHg in the reservoir was similar to that reported elsewhere for lakes receiving Hg from atmospheric deposition only. SHg concentrations and loads increased significantly as the river passed through the riparian wetland reach. On the basis of flooded wetland area, net production of MeHg was 15 times greater in the wetland reach than in wetland-associated drainages described in other studies. JF - Canadian Journal of Fisheries and Aquatic Sciences = Journal Canadien des Sciences Halieutiques et Aquatiques AU - Waldron, Marcus C AU - Colman, John A AU - Breault, Robert F AU - Wiener, James G AU - Shields, Pamela J Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 1080 EP - 1091 PB - National Research Council of Canada, Ottawa, ON VL - 57 IS - 5 SN - 0706-652X, 0706-652X KW - United States KW - hydrology KW - reservoirs KW - rivers and streams KW - pollution KW - bioavailability KW - Middlesex County Massachusetts KW - organo-metallics KW - geochemical cycle KW - spatial distribution KW - methylmercury KW - wetlands KW - transport KW - quantitative analysis KW - Massachusetts KW - Sudbury River KW - metals KW - western Massachusetts KW - east-central Massachusetts KW - Sudbury River basin KW - water pollution KW - Worcester County Massachusetts KW - mercury KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51020728?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences+%3D+Journal+Canadien+des+Sciences+Halieutiques+et+Aquatiques&rft.atitle=Distribution%2C+hydrologic+transport%2C+and+cycling+of+total+mercury+and+methyl+mercury+in+a+contaminated+river-reservoir-wetland+system+%28Sudbury+River%2C+eastern+Massachusetts%29&rft.au=Waldron%2C+Marcus+C%3BColman%2C+John+A%3BBreault%2C+Robert+F%3BWiener%2C+James+G%3BShields%2C+Pamela+J&rft.aulast=Waldron&rft.aufirst=Marcus&rft.date=2000-05-01&rft.volume=57&rft.issue=5&rft.spage=1080&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences+%3D+Journal+Canadien+des+Sciences+Halieutiques+et+Aquatiques&rft.issn=0706652X&rft_id=info:doi/10.1139%2Fcjfas-57-5-1080 L2 - http://pubs.nrc-cnrc.gc.ca/rp-ps/journalDetail.jsp?jcode=cjfas&lang=eng LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 36 N1 - PubXState - ON N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bioavailability; east-central Massachusetts; geochemical cycle; hydrology; Massachusetts; mercury; metals; methylmercury; Middlesex County Massachusetts; organo-metallics; pollution; quantitative analysis; reservoirs; rivers and streams; spatial distribution; Sudbury River; Sudbury River basin; transport; United States; water pollution; western Massachusetts; wetlands; Worcester County Massachusetts DO - http://dx.doi.org/10.1139/cjfas-57-5-1080 ER - TY - JOUR T1 - Sampling for mercury at subnanogram per litre concentrations for load estimation in rivers AN - 51019640; 2008-087454 AB - Estimation of constituent loads in streams requires collection of stream samples that are representative of constituent concentrations, that is, composites of isokinetic multiple verticals collected along a stream transect. An all-Teflon isokinetic sampler (DH-81) cleaned in 75 degrees C, 4 N HCl was tested using blank, split, and replicate samples to assess systematic and random sample contamination by mercury species. Mean mercury concentrations in field-equipment blanks were low: 0.135 ng.L (super -1) for total mercury (Hg) and 0.0086 ng.L (super -1) for monomethyl mercury (MeHg). Mean square errors (MSE) for Hg and MeHg duplicate samples collected at eight sampling stations were not statistically different from MSE of samples split in the laboratory, which represent the analytical and splitting error. Low field-blank concentrations and statistically equal duplicate- and split-sample MSE values indicate that no measurable contamination was occurring during sampling. Standard deviations associated with example mercury load estimations were four to five times larger, on a relative basis, than standard deviations calculated from duplicate samples, indicating that error of the load determination was primarily a function of the loading model used, not of sampling or analytical methods. JF - Canadian Journal of Fisheries and Aquatic Sciences = Journal Canadien des Sciences Halieutiques et Aquatiques AU - Colman, John A AU - Breault, Robert F AU - Wiener, James G AU - Shields, Pamela J Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 1073 EP - 1079 PB - National Research Council of Canada, Ottawa, ON VL - 57 IS - 5 SN - 0706-652X, 0706-652X KW - United States KW - water quality KW - concentration KW - stream sediments KW - statistical analysis KW - pollution KW - fresh water KW - Middlesex County Massachusetts KW - sampling KW - Massachusetts KW - Sudbury River KW - metals KW - western Massachusetts KW - sediments KW - east-central Massachusetts KW - seasonal variations KW - Sudbury River basin KW - water pollution KW - fluvial environment KW - Worcester County Massachusetts KW - mercury KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51019640?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences+%3D+Journal+Canadien+des+Sciences+Halieutiques+et+Aquatiques&rft.atitle=Sampling+for+mercury+at+subnanogram+per+litre+concentrations+for+load+estimation+in+rivers&rft.au=Colman%2C+John+A%3BBreault%2C+Robert+F%3BWiener%2C+James+G%3BShields%2C+Pamela+J&rft.aulast=Colman&rft.aufirst=John&rft.date=2000-05-01&rft.volume=57&rft.issue=5&rft.spage=1073&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences+%3D+Journal+Canadien+des+Sciences+Halieutiques+et+Aquatiques&rft.issn=0706652X&rft_id=info:doi/10.1139%2Fcjfas-57-5-1073 L2 - http://pubs.nrc-cnrc.gc.ca/rp-ps/journalDetail.jsp?jcode=cjfas&lang=eng LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 22 N1 - PubXState - ON N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - concentration; east-central Massachusetts; fluvial environment; fresh water; Massachusetts; mercury; metals; Middlesex County Massachusetts; pollution; sampling; seasonal variations; sediments; statistical analysis; stream sediments; Sudbury River; Sudbury River basin; United States; water pollution; water quality; western Massachusetts; Worcester County Massachusetts DO - http://dx.doi.org/10.1139/cjfas-57-5-1073 ER - TY - JOUR T1 - Mercury in the Sudbury River, (Massachusetts, U.S.A.); pollution history and a synthesis of recent research AN - 51019587; 2008-087451 AB - We review the transport, fate, and bioavailability of mercury in the Sudbury River, topics addressed in the following five papers. Mercury entered the river from an industrial complex (site) that operated from 1917 to 1978. Rates of mercury accumulation in sediment cores from two reservoirs just downstream from the site decreased soon after industrial operations ended and have decreased further since capping of contaminated soils at the site in 1991. The reservoirs contained the most contaminated sediments (some exceeding 50 mg Hg.g dry weight (super -1) ) and were depositional sinks for total mercury. Methyl mercury concentrations in biota did not parallel concentrations of total mercury in the sediments to which organisms were exposed, experimentally or as residents. Contaminated wetlands within the floodplain about 25 km downstream from the site produced and exported methyl mercury from inorganic mercury that had originated from the site. Natural burial processes have gradually decreased the quantity of sedimentary mercury available for methylation within the reservoirs, whereas mercury in the lesser contaminated wetlands farther downstream has remained more available for transport, methylation, and entry into food webs. JF - Canadian Journal of Fisheries and Aquatic Sciences = Journal Canadien des Sciences Halieutiques et Aquatiques AU - Wiener, James G AU - Shields, Pamela J Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 1053 EP - 1061 PB - National Research Council of Canada, Ottawa, ON VL - 57 IS - 5 SN - 0706-652X, 0706-652X KW - United States KW - stream sediments KW - pollutants KW - pollution KW - bioavailability KW - Middlesex County Massachusetts KW - research KW - organo-metallics KW - fate KW - methylmercury KW - transport KW - Massachusetts KW - Sudbury River KW - metals KW - western Massachusetts KW - sediments KW - east-central Massachusetts KW - Sudbury River basin KW - water pollution KW - fluvial environment KW - Worcester County Massachusetts KW - review KW - mercury KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51019587?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences+%3D+Journal+Canadien+des+Sciences+Halieutiques+et+Aquatiques&rft.atitle=Mercury+in+the+Sudbury+River%2C+%28Massachusetts%2C+U.S.A.%29%3B+pollution+history+and+a+synthesis+of+recent+research&rft.au=Wiener%2C+James+G%3BShields%2C+Pamela+J&rft.aulast=Wiener&rft.aufirst=James&rft.date=2000-05-01&rft.volume=57&rft.issue=5&rft.spage=1053&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences+%3D+Journal+Canadien+des+Sciences+Halieutiques+et+Aquatiques&rft.issn=0706652X&rft_id=info:doi/10.1139%2Fcjfas-57-5-1053 L2 - http://pubs.nrc-cnrc.gc.ca/rp-ps/journalDetail.jsp?jcode=cjfas&lang=eng LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 44 N1 - PubXState - ON N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bioavailability; east-central Massachusetts; fate; fluvial environment; Massachusetts; mercury; metals; methylmercury; Middlesex County Massachusetts; organo-metallics; pollutants; pollution; research; review; sediments; stream sediments; Sudbury River; Sudbury River basin; transport; United States; water pollution; western Massachusetts; Worcester County Massachusetts DO - http://dx.doi.org/10.1139/cjfas-57-5-1053 ER - TY - JOUR T1 - Biogeochemistry of mercury in a contaminated river--Biogeochimie du mercure dans un cours d'eau contamine AN - 51016906; 2008-087450 JF - Canadian Journal of Fisheries and Aquatic Sciences = Journal Canadien des Sciences Halieutiques et Aquatiques AU - Wiener, James G AU - Shields, Pamela J Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 1053 EP - 1112 PB - National Research Council of Canada, Ottawa, ON VL - 57 IS - 5 SN - 0706-652X, 0706-652X KW - United States KW - pollution KW - Middlesex County Massachusetts KW - Massachusetts KW - Sudbury River KW - metals KW - western Massachusetts KW - east-central Massachusetts KW - Sudbury River basin KW - water pollution KW - Worcester County Massachusetts KW - mercury KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51016906?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Wiener%2C+James+G%3BShields%2C+Pamela+J&rft.aulast=Wiener&rft.aufirst=James&rft.date=2000-05-01&rft.volume=&rft.issue=&rft.spage=1053&rft.isbn=&rft.btitle=Biogeochemistry+of+mercury+in+a+contaminated+river--Biogeochimie+du+mercure+dans+un+cours+d%27eau+contamine&rft.title=Biogeochemistry+of+mercury+in+a+contaminated+river--Biogeochimie+du+mercure+dans+un+cours+d%27eau+contamine&rft.issn=0706652X&rft_id=info:doi/ L2 - http://pubs.nrc-cnrc.gc.ca/rp-ps/journalDetail.jsp?jcode=cjfas&lang=eng LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - ON N1 - Document feature - illus. N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - east-central Massachusetts; Massachusetts; mercury; metals; Middlesex County Massachusetts; pollution; Sudbury River; Sudbury River basin; United States; water pollution; western Massachusetts; Worcester County Massachusetts ER - TY - JOUR T1 - Stratigraphy and historic accumulation of mercury in recent depositional sediments in the Sudbury River, Massachusetts, U.S.A. AN - 50078902; 2008-087452 AB - The distribution and deposition of sedimentary mercury in the Sudbury River were linked to an industrial complex (Nyanza site) that operated from 1917 through 1978. In two reservoirs just downstream from the Nyanza site, estimated rates of mercury accumulation increased markedly in the 1920s and 1930s, were greatest during 1976-1982, decreased within 5 years after industrial operations ceased, and have decreased further since capping of contaminated soil at the Nyanza site was completed in 1991. The most contaminated sediments were typically buried, yet the 0- to 1-cm stratum remained substantially contaminated in all cores. Mercury accumulating in the surficial, reservoir sediments was probably from continuing, albeit much lesser, inputs from the Nyanza site, whereas recent inputs to downstream wetland areas were attributed to recycling of sedimentary mercury or to mercury from unidentified local sources. In the reservoirs, burial of highly contaminated sediments is gradually decreasing the amount of sedimentary mercury available for methylation. In downstream wetlands, however, sedimentary mercury seemed to be more available than that in the reservoirs for physical transport and biogeochemical cycling. JF - Canadian Journal of Fisheries and Aquatic Sciences = Journal Canadien des Sciences Halieutiques et Aquatiques AU - Frazier, Bradley E AU - Wiener, James G AU - Rada, Ronald G AU - Engstrom, Daniel R AU - Shields, Pamela J Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 1062 EP - 1072 PB - National Research Council of Canada, Ottawa, ON VL - 57 IS - 5 SN - 0706-652X, 0706-652X KW - United States KW - isotopes KW - stream sediments KW - waste disposal sites KW - lead KW - Middlesex County Massachusetts KW - Holocene KW - cores KW - Cenozoic KW - laboratory studies KW - radioactive isotopes KW - quantitative analysis KW - Massachusetts KW - dates KW - sediments KW - absolute age KW - east-central Massachusetts KW - Fairhaven Bay KW - Sudbury River basin KW - accumulation rates KW - water pollution KW - Nyanza KW - mercury KW - experimental studies KW - Quaternary KW - sedimentation KW - pollution KW - rates KW - wetlands KW - deposition KW - Sudbury River KW - metals KW - western Massachusetts KW - Great Meadows National Wildlife Refuge KW - upper Holocene KW - Ashland Massachusetts KW - fluvial environment KW - Worcester County Massachusetts KW - Pb-210 KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50078902?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences+%3D+Journal+Canadien+des+Sciences+Halieutiques+et+Aquatiques&rft.atitle=Stratigraphy+and+historic+accumulation+of+mercury+in+recent+depositional+sediments+in+the+Sudbury+River%2C+Massachusetts%2C+U.S.A.&rft.au=Frazier%2C+Bradley+E%3BWiener%2C+James+G%3BRada%2C+Ronald+G%3BEngstrom%2C+Daniel+R%3BShields%2C+Pamela+J&rft.aulast=Frazier&rft.aufirst=Bradley&rft.date=2000-05-01&rft.volume=57&rft.issue=5&rft.spage=1062&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences+%3D+Journal+Canadien+des+Sciences+Halieutiques+et+Aquatiques&rft.issn=0706652X&rft_id=info:doi/10.1139%2Fcjfas-57-5-1062 L2 - http://pubs.nrc-cnrc.gc.ca/rp-ps/journalDetail.jsp?jcode=cjfas&lang=eng LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 40 N1 - PubXState - ON N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; accumulation rates; Ashland Massachusetts; Cenozoic; cores; dates; deposition; east-central Massachusetts; experimental studies; Fairhaven Bay; fluvial environment; Great Meadows National Wildlife Refuge; Holocene; isotopes; laboratory studies; lead; Massachusetts; mercury; metals; Middlesex County Massachusetts; Nyanza; Pb-210; pollution; quantitative analysis; Quaternary; radioactive isotopes; rates; sedimentation; sediments; stream sediments; Sudbury River; Sudbury River basin; United States; upper Holocene; waste disposal sites; water pollution; western Massachusetts; wetlands; Worcester County Massachusetts DO - http://dx.doi.org/10.1139/cjfas-57-5-1062 ER - TY - JOUR T1 - Biologically based dose-response model for liver tumors induced by trichloroethylene. AN - 21250841; 11702230 AB - The existing extensive laboratory data on trichloroethylene (TCE) and its two metabolites, dichloroacetic (DCA) and trichloroacetic (TCA), are used to explore the relationship among these three compounds. Under the hypothesis that these compounds induce liver tumors in mice through promotion of preexisting initiated cells, it is demonstrated that DCA alone could be responsible for all the response of carcinomas in liver of B6CF(1) mice. The focus of this paper is on how a plausible biological assumption could impact on low-dose risk estimates, rather than on the risk estimate per se. The findings suggest that low-dose risk estimates to humans would be overestimated unless the different background rates between mice and humans are properly accounted for. JF - Environmental Health Perspectives AU - Chen, C W AD - National Center for Environmental Assessment, U.S. Environmental Protection Agency, Washington, DC 20460, USA., chen.chao@epa.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 335 EP - 342 PB - US Government Printing Office, Superintendent of Documents, P.O. Box 371954 Pittsburgh PA 15250-7954 USA VL - 108 IS - Suppl 2 SN - 0091-6765, 0091-6765 KW - Risk Abstracts; Environment Abstracts KW - Dose-response effects KW - Liver KW - Solvents KW - Mice KW - tumors KW - Metabolites KW - Trichloroethylene KW - R2 23060:Medical and environmental health KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21250841?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Health+Perspectives&rft.atitle=Biologically+based+dose-response+model+for+liver+tumors+induced+by+trichloroethylene.&rft.au=Chen%2C+C+W&rft.aulast=Chen&rft.aufirst=C&rft.date=2000-05-01&rft.volume=108&rft.issue=Suppl+2&rft.spage=335&rft.isbn=&rft.btitle=&rft.title=Environmental+Health+Perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-01-01 N1 - Last updated - 2015-03-31 N1 - SubjectsTermNotLitGenreText - Dose-response effects; Solvents; Liver; Metabolites; tumors; Mice; Trichloroethylene ER - TY - JOUR T1 - Trichloroethylene and cancer: epidemiologic evidence AN - 1859323018; 10807549 AB - adopt a traditional review of the mutagenicity data on TCE and its metabolites but instead raise several issues regarding the interpretation of mutagenicity and genetic toxicity tests in shedding light on whether these processes are key events in tumor initiation. As discussed in the U.S. EPA proposed cancer guidelines, a salient question is whether TCE or its metabolites interacts directly with and mutates DNA to bring about changes in gene expression or whether DNA mutation is achieved through some other process. The Moore and Harrington-Brock article examines this question. Bull ((italic)10(/italic)), Lash et al. ((italic)11(/italic)), and Green ((italic)12(/italic)) present the experimental support for several modes of action for tumor development in rodents. These articles discuss a number of hypotheses including the influence on tumor development from mutagenesis, cytotoxicity, cell proliferation, *(subscript)2u(/subscript)-globin, peroxisome proliferation, oxidative stress, receptor binding, and perturbation of cell-signaling pathways. Quantitative dose-response issues important to the statistical modeling of both noncarcinogenic and carcinogenic effects are discussed in articles by Fisher ((italic)5(/italic)), Bois ((italic)13(/italic)), Clewell et al. ((italic)14(/italic)), Bois ((italic)15(/italic)), Boyes et al. ((italic)16(/italic)), Barton and Clewell ((italic)17(/italic)), Chen ((italic)18(/italic)), and Rhomberg ((italic)19(/italic)). Because pharmacokinetic data are available for the TCE assessment, dose metrics other than applied dose may be evaluated in benchmark and other dose-response analyses. Fisher's article ((italic)5(/italic)) describes modeling liver concentration of TCE and its oxidative metabolites, while Clewell et al. ((italic)14(/italic)) model plasma concentrations of the oxidative metabolites and flux through the kidney for metabolites of the glutathione-(italic)S(/italic)-transferase pathway. Both models are scaled from mice or rats to humans and provide estimates of human equivalent doses simulating inhalation and oral exposure routes. Parameters from these models have been further subjected to an uncertainty analysis in the articles by Bois ((italic)13,15(/italic)). The application of Baysian statistical methods is increasingly used for updating estimates of pharmacokinetic model parameters. Moreover, these analyses can provide an additional set of dosimetric estimates that in some instances are very different from those obtained with the original model. These findings make the risk assessor's job more complex. Boyes and others ((italic)16(/italic)) test whether Haber's Law or a dose metric that integrates time and concentration best describes neurologic effects with high-level TCE exposure. Barton and Clewell ((italic)17(/italic)) examine both experimental and pharmacokinetically derived dose metrics in their analysis of neurologic and systemic organ toxicity seen in the rodent studies. The article further applies benchmark dose methodology to the quantitative analysis of these effects. The U.S. EPA proposed cancer guidelines recommend that dose-response modeling be carried out in two parts: analysis of the curve shape within the range of the data and extrapolation below the observable data. Application of a biologically based model is preferred for evaluating the dose-response relationship for carcinogenic effects. Such an approach is described in the article by Chen ((italic)18(/italic)), which explores the relationship between TCE and two of its oxidative metabolites, dichloroacetic acid and trichloroacetic acid, under the hypothesis that these chemicals induce liver tumors in mice through promotion of preexisting initiated cells. Unfortunately, the data ne JF - Environmental health perspectives AU - Scott AU - Cogliano AD - U.S. Environmental Protection Agency, Washington, DC USA. Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 159 EP - 160 VL - 108 Suppl 2 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859323018?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+health+perspectives&rft.atitle=Trichloroethylene+and+cancer%3A+epidemiologic+evidence&rft.au=Scott%3BCogliano&rft.aulast=Scott&rft.aufirst=&rft.date=2000-05-01&rft.volume=108+Suppl+2&rft.issue=&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=Environmental+health+perspectives&rft.issn=1552-9924&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2000-06-24 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Public Health Concerns about Caliciviruses as Waterborne Contaminants AN - 18082362; 5167036 AB - Caliciviruses are disseminated by the fecal-oral route and are found in contaminated surface and ground waters. The US Environmental Protection Agency (EPA) is interested in preventing calicivirus contamination in treated waters used for consumption, and these viruses are on the EPA's "contaminant candidate list" for regulatory consideration in drinking waters. These viruses also present a health threat for recreation and shellfish-growing waters. However, before EPA can make regulatory decisions regarding caliciviruses, significant information and technology needs must be established, including analytical methods for sampling, identifying, and quantifying the viruses; applicability of surrogates to determine their presence; efficacy of water and wastewater treatment or disinfection; waterborne occurrence levels and distribution; dose response; and the viruses' effect(s) on health. Future drinking-water regulations may need to ensure that treatments are adequate to remove caliciviruses from source waters. For recreation and shellfish-growing waters, surrogate indicators and health criteria may need to be based upon establishing risks of exposure to caliciviruses. JF - Journal of Infectious Diseases AU - Schaub, SA AU - Oshiro, R K AD - US Environmental Protection Agency, Office of Water, Washington, DC, USA Y1 - 2000/05// PY - 2000 DA - May 2000 SP - S374 EP - S380 VL - 181 SN - 0022-1899, 0022-1899 KW - Calcivirus KW - USA KW - Viruses KW - calicivirus KW - fecal-oral transmission KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts; Virology & AIDS Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Calicivirus KW - Water Quality KW - Food poisoning KW - Microbial contamination KW - Pathogens KW - Wastewater treatment KW - Public health KW - Water supply KW - Public Health KW - Drinking Water KW - Pollutants KW - Quality control KW - Water-borne diseases KW - Ground water KW - Recreational waters KW - Shellfish KW - Drinking water KW - USA Coasts KW - SW 3070:Water quality control KW - V 22124:Prophylaxis & control KW - A 01108:Other water systems KW - Q5 08524:Public health, medicines, dangerous organisms KW - Q1 08627:Food quality and standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18082362?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Infectious+Diseases&rft.atitle=Public+Health+Concerns+about+Caliciviruses+as+Waterborne+Contaminants&rft.au=Schaub%2C+SA%3BOshiro%2C+R+K&rft.aulast=Schaub&rft.aufirst=SA&rft.date=2000-05-01&rft.volume=181&rft.issue=&rft.spage=S374&rft.isbn=&rft.btitle=&rft.title=Journal+of+Infectious+Diseases&rft.issn=00221899&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Quality control; Recreational waters; Food poisoning; Shellfish; Pathogens; Microbial contamination; Water supply; Public health; Ground water; Water-borne diseases; Drinking water; Wastewater treatment; Drinking Water; Public Health; Pollutants; Viruses; Water Quality; Calicivirus; USA Coasts ER - TY - JOUR T1 - Habitat Suitability Index Models for Eight Fish and Invertebrate Species in Casco and Sheepscot Bays, Maine AN - 17817678; 4856810 AB - Habitat suitability index (HSI) models were used to map habitat quality for eight fish and invertebrate species in Casco Bay and Sheepscot Bay, Maine. Habitat suitability index modeling can be used to support a wide range of management needs involving species or habitat mapping, including analysis of essential fish habitat. The HSI values were calculated as a function of a species' habitat associations and mapped available habitat. Based on published information and expert review, models for two to four life stages were developed for alewives Alosa psuedoharengus, American sand lances Ammodytes americanus, Atlantic salmon Salmo salar, Atlantic tomcods Microgadus tomcod, common mummichogs Fundulus heteroclitus, winter flounder Pleuronectes americanus, American lobsters Homarus americanus, and softshell clams Mya arenaria. Using geographic information systems (GIS), habitat maps for each bay were developed consisting of 100 x 100-m grid cells for seasonal temperature and salinity and for depth and predominant substrate type. The HSI models were run in the GIS by reclassifying the habitat maps to a 0-1 suitability index scale, 1.0 representing the most suitable condition for each habitat variable. Following reclassification, the geometric mean of the suitability index values for the habitat variables was calculated by grid cell, and the results were mapped. Model performance was evaluated by expert reviewers and by using Kruskal-Wallis and Wilcoxon nonparametric statistical tests, which compared model outputs with available species catch data. Total suitable habitat on HSI maps ranged from 6% for American sand lance adults and juveniles to 95% for American lobster adults. Habitat importance was analyzed by mapping the arithmetic mean HSI value calculated from all models by season. Based on the mean of the HSI values from these models, which do not contain pollutant effects, shallow, nearshore areas and river mouths near Portland, Maine, provide the most important habitat in Casco Bay. These results suggest that remediation of degraded areas near Portland could restore valuable habitat. JF - North American Journal of Fisheries Management AU - Brown, S K AU - Buja, K R AU - Jury, SH AU - Monaco, ME AU - Banner, A AD - Research Analysis and Coordination Division, Office of Science and Technology, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, 1315 East-West Highway, Silver Spring, Maryland 20910, USA, stephen.k.brown@noaa.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 408 EP - 435 VL - 20 IS - 2 SN - 0275-5947, 0275-5947 KW - American lobster KW - USA, Maine KW - Ecology Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Classification systems KW - Marine KW - Habitat selection KW - Ecosystem disturbance KW - Models KW - Pisces KW - INE, USA, Oregon KW - Fishery management KW - Habitat improvement KW - Ecosystem management KW - Invertebrata KW - Habitat utilization KW - Homarus americanus KW - O 1070:Ecology/Community Studies KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08463:Habitat community studies KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17817678?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=North+American+Journal+of+Fisheries+Management&rft.atitle=Habitat+Suitability+Index+Models+for+Eight+Fish+and+Invertebrate+Species+in+Casco+and+Sheepscot+Bays%2C+Maine&rft.au=Brown%2C+S+K%3BBuja%2C+K+R%3BJury%2C+SH%3BMonaco%2C+ME%3BBanner%2C+A&rft.aulast=Brown&rft.aufirst=S&rft.date=2000-05-01&rft.volume=20&rft.issue=2&rft.spage=408&rft.isbn=&rft.btitle=&rft.title=North+American+Journal+of+Fisheries+Management&rft.issn=02755947&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Classification systems; Fishery management; Habitat improvement; Ecosystem management; Habitat selection; Ecosystem disturbance; Habitat utilization; Models; Pisces; Invertebrata; Homarus americanus; INE, USA, Oregon; Marine ER - TY - JOUR T1 - Microextraction of Nine Haloacetic Acids in Drinking Water at Microgram per Liter Levels with Electrospray-Mass Spectrometry of Stable Association Complexes AN - 17733893; 4803246 AB - Haloacetic acids are disinfection byproducts of the chlorination of drinking water. This paper presents the analysis of all nine chloro and bromohaloacetic acids (HAA9) at the submicrogram per liter level by microextraction with detection by electrospray-mass spectrometry. The haloacetic acids are extracted from acidified water through a microscale liquid-liquid extraction. Perfluoroheptanoic acid is added to the extracts, and the haloacetic acids are detected with electrospray-mass spectrometry. Confidence in the selective quantification of the haloacetic acids is achieved by observing the stable association complexes that are formed between the haloacetic acids and perfluoroheptanoic acid. The method detection limits for the haloacetic acids are less than 1 mu g L super(-1), depending on the haloacetic acid. Standard addition is used to quantify the haloacetic acids in several water matrixes. JF - Analytical Chemistry (Washington) AU - Magnuson, M L AU - Kelty, CA AD - National Risk Management Research Laboratory, Water Supply and Water Resources Division, Treatment Technology Evaluation Branch, U.S. Environmental Protection Agency, 26 West Martin Luther King Drive, Cincinnati, Ohio 45268, USA, Magnuson.Matthew@epa.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 2308 EP - 2312 VL - 72 IS - 10 SN - 0003-2700, 0003-2700 KW - haloacetic acids KW - Aqualine Abstracts; Water Resources Abstracts KW - Water supplies (Potable) KW - Mass Spectrometry KW - Disinfection KW - Water Analysis KW - Byproducts KW - Water analysis KW - Drinking Water KW - Acids KW - Chlorination KW - Spectrometry (Mass) KW - Acidity KW - SW 3010:Identification of pollutants KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17733893?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+Chemistry+%28Washington%29&rft.atitle=Microextraction+of+Nine+Haloacetic+Acids+in+Drinking+Water+at+Microgram+per+Liter+Levels+with+Electrospray-Mass+Spectrometry+of+Stable+Association+Complexes&rft.au=Magnuson%2C+M+L%3BKelty%2C+CA&rft.aulast=Magnuson&rft.aufirst=M&rft.date=2000-05-01&rft.volume=72&rft.issue=10&rft.spage=2308&rft.isbn=&rft.btitle=&rft.title=Analytical+Chemistry+%28Washington%29&rft.issn=00032700&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Water supplies (Potable); Disinfection; Byproducts; Chlorination; Spectrometry (Mass); Acidity; Water analysis; Mass Spectrometry; Drinking Water; Water Analysis; Acids ER - TY - JOUR T1 - Fine Particulate Matter (PM) and Organic Speciation of Fireplace Emissions AN - 17664489; 4731917 AB - This paper presents a summary of fireplace particle size and organic speciation data gathered to date in an ongoing project. Tests are being conducted in a residential wood combustion (RWC) laboratory on three factory-built fireplaces, RWC wood smoke particles <10 mu m (PM10) consist primarily of a mixture of organic compounds that have condensed into droplets; therefore, the size distribution and total mass are influenced by temperature of the sample during its collection. During the series 1 tests (15 tests), the dilution tunnel used to cool and dilute the stack gases gave an average mixed gas temperature of 47.3 degree C and an average dilution ratio of 4.3. Averages for the PM2.5 (particles <2.5 mu m) and PM10 fractions were 74 and 84%, respectively. For the series 2 tests, the dilution tunnel was modified, reducing the average mixed gas temperatures to 33.8 degree C and increasing the average dilution ratio to 11.0 in tests completed to date. PM2.5 and PM10 fractions were 83 and 91%, respectively. Since typical winter time mixed gas temperatures would usually be less than 10 degree C, these size fraction results (even from the series 2 tests) probably represent the lower bound; the PM10 and PM2.5 size fractions might be higher at typical winter temperatures. The particles collected on the first stage (cutpoint approximately 11.7 mu m) were light gray and appeared to include inorganic ash. Particles collected on the remainder of the stages were black and appeared to be condensed organics because there was noticeable lateral bleeding of the collected materials into the filter substrate. Total particulate emission rates ranged from 10.3 to 58.4 g/h; corresponding emission factors ranged from 3.3 to 14.9 g/kg of dry wood burned. A wide range of Environmental Protection Agency (EPA) Method 8270 semivolatile organic compounds were found in the emissions; of the 17 target compounds quantified, major constituents are phenol, 2-methylphenol, 4-methylphenol, 2,4-dimethylphenol, and naphthalene. JF - Environmental Science & Technology AU - Purvis, C R AU - Mccrillis, R C AU - Kariher, PH AD - U.S. Environmental Protection Agency, Air Pollution Prevention and Control Division (MD-63), Research Triangle Park, NC 27711, USA, purvis.carol@epa.gov Y1 - 2000/05/01/ PY - 2000 DA - 2000 May 01 SP - 1653 EP - 1658 VL - 34 IS - 9 SN - 0013-936X, 0013-936X KW - fireplaces KW - Pollution Abstracts KW - Particle size KW - Wood KW - Smoke KW - Chemical speciation KW - Emissions KW - Organic compounds KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17664489?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Fine+Particulate+Matter+%28PM%29+and+Organic+Speciation+of+Fireplace+Emissions&rft.au=Purvis%2C+C+R%3BMccrillis%2C+R+C%3BKariher%2C+PH&rft.aulast=Purvis&rft.aufirst=C&rft.date=2000-05-01&rft.volume=34&rft.issue=9&rft.spage=1653&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Particle size; Chemical speciation; Wood; Smoke; Emissions; Organic compounds ER - TY - JOUR T1 - Phytodegradation of p,p'-DDT and the Enantiomers of o,p'-DDT AN - 17663863; 4731919 AB - The reductive dechlorination of p,p'- and o,p'-DDT at the mu g/mL level in the presence of the aquatic plant Elodea (Elodea canadensis) and the terrestrial plant kudzu (Pueraria thunbergiana) is described; studies included analysis of the enantiomers of chiral o,p'-DDT and its chiral degradation product, o,p'-DDT to determine whether the reaction was enantioselective. The degradation process was followed by GC using a gamma -cyclodextrin-based chiral phase. The half-lives for degradation of both o,p'- and p,p'-DDT by Elodea and kudzu ranged from 1 to 3 days, apparently depending on growth conditions of the plants. The only products identified were o,p'- and p,p'-DDD; no DDE or DDA were detected. Phytodegradation experiments using Elodea and carbon-14 labeled p,p'-DDT indicated that up to 22% of DDT analogues were covalently bound within the plant. DDT degradation by Elodea was only bout 40% slower after gamma -irradiation at 300 krads, indicating the major process not to be dependent upon live microbes. Dead Elodea was shown to maintain reductive activity at about the same rate as fresh plants. The reactions with Elodea and kudzu were not enantioselective in the formation of o,p'-DDT from o,p'-DDT. Reductive dehalogenation of o,p'-DDT by a partially purified extract of Elodea, by the porphyrin hematin, and by human hemoglobin was also shown to be nonenantioselective, with reaction rates similar to that for the whole plant. This evidence suggests that the phytodegradation process may be catalyzed by an achiral enzyme cofactor or other achiral biomolecule. JF - Environmental Science & Technology AU - Garrison, A W AU - Nzengung, V A AU - Avants, J K AU - Ellington, J J AU - Jones, W J AU - Rennels, D AU - Wolfe, N L AD - Ecosystems Research Division, National Exposure Research Laboratory, U.S. Environmental Protection Agency, Athens, GA 30605, USA, garrison.wayne@epa.gov Y1 - 2000/05/01/ PY - 2000 DA - 2000 May 01 SP - 1663 EP - 1670 VL - 34 IS - 9 SN - 0013-936X, 0013-936X KW - Elodea canadensis KW - Pueraria thunbergiana KW - phytodegradation KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Dechlorination KW - Insecticides KW - Chemical degradation KW - Biodegradation KW - Phytoremediation KW - DDT KW - Aquatic plants KW - Photochemical reactions KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17663863?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Phytodegradation+of+p%2Cp%27-DDT+and+the+Enantiomers+of+o%2Cp%27-DDT&rft.au=Garrison%2C+A+W%3BNzengung%2C+V+A%3BAvants%2C+J+K%3BEllington%2C+J+J%3BJones%2C+W+J%3BRennels%2C+D%3BWolfe%2C+N+L&rft.aulast=Garrison&rft.aufirst=A&rft.date=2000-05-01&rft.volume=34&rft.issue=9&rft.spage=1663&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Dechlorination; Biodegradation; Chemical degradation; DDT; Photochemical reactions; Insecticides; Phytoremediation; Aquatic plants ER - TY - JOUR T1 - Estimating trophic state proportions of a regional lake population: Are larger samples always better? AN - 17662827; 4730858 AB - During the summers of 1991-1994, the Environmental Monitoring and Assessment Program (EMAP) sampled 344 lakes throughout the northeastern United States using a proportional stratified sampling design based on lake size. Approximately one-quarter of the 344 lakes were sampled each year (4 years) for total phosphorus to determine the proportion (and associated 95% confidence intervals) of the northeast lake population greater than or equal to 1 ha (11,076 plus or minus 1,699 lakes) that was in oligotrophic, mesotrophic, eutrophic, or heupereutropic (4 classes) condition according to the total phosphorus criteria of the North America Lake Manegement Society. Estimates for the second, third, and fourth yr were developed as cumulative of the previous yr samples and the current yr samples for the northeast as a whole and for each of its three ecoregions (4 regions). New confidence intervals were computed for each cumulative yr condition estimate. This produced a total (4 years x 4 classes x 4 regions) of 64 cumulative yr tropic condition estimates. Confidence intervals for 21% of these estimates did not shorten with increased sample size. This phenomena raised questions about the accuracy of estimates based on cumulative sampling procedures. We explain why and how the phenomenon comes about with both straight random and proportional random sampling. Further, we present an example of the effects this phenomenon has on lake tropic state condition estimates in the northeastern United States. JF - Environmental Monitoring and Assessment AU - Peterson, SA AU - Urquhart, N S AD - U.S. EPA National Health and Ecological Effects Research Laboratory, Western Ecology Division, Corvallis, OR 97333, USA Y1 - 2000/05/01/ PY - 2000 DA - 2000 May 01 SP - 71 EP - 89 VL - 62 IS - 1 SN - 0167-6369, 0167-6369 KW - USA, Northeast KW - lake population KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Environmental monitoring KW - Regional Analysis KW - Oligotrophic lakes KW - Water Sampling KW - Water Quality KW - Phosphorus KW - Network Design KW - Water quality KW - Trophic levels KW - Trophic Level KW - Classification KW - Water samples KW - Sampling KW - Lake Classification KW - Trophic state KW - Monitoring KW - Water quality (Natural waters) KW - AQ 00001:Water Resources and Supplies KW - SW 5010:Network design KW - SW 0850:Lakes KW - Q2 09184:Composition of water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17662827?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Estimating+trophic+state+proportions+of+a+regional+lake+population%3A+Are+larger+samples+always+better%3F&rft.au=Peterson%2C+SA%3BUrquhart%2C+N+S&rft.aulast=Peterson&rft.aufirst=SA&rft.date=2000-05-01&rft.volume=62&rft.issue=1&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Oligotrophic lakes; Classification; Water samples; Phosphorus; Water quality; Trophic levels; Sampling; Monitoring; Trophic state; Water quality (Natural waters); Trophic Level; Regional Analysis; Water Sampling; Water Quality; Network Design; Lake Classification ER - TY - JOUR T1 - Survival of environmental microbial agents in CD-1 mice following oral exposure AN - 17647071; 4795238 AB - Microbial agents have many applications in the environment and are replacing chemicals and engineering processes due to improved efficacy, reduced toxicity, and less cost. Typically, innocuous species are used, however, unless the products include genetically engineered microorganisms, potential health effects are not scrutinized. In order to investigate possible health concerns, four surrogate microbial agents were studied in vivo and in vitro. Male CD-1 mice were treated perorally (p.o.) with average doses of 2.62 times 10 super(8) colony forming units (CFU) of Pseudomonas aureofaciens, 1.16 times 10 super(8) CFU of Burkholderia cepacia, 1.78 times 10 super(8) CFU of P. fluorescens, or 1.86 times 10 super(8) CFU of P. putida. To determine clearance of the dosed strains from mice, lungs, intestinal tract (small, large, cecum), mesenteric lymph nodes (MLN), spleen, and liver were homogenized individually, and dilutions inoculated onto selective media for enumeration of intestinal populations. All strains were recovered in the intestinal tract 3 hours after treatment but P. fluorescens and P. aureofaciens were cleared after the first day. P. putida and B. cepacia survived for at least 2 days in the large intestine and B. cepacia was detected in the small intestine 7 days after treatment. P. aureofaciens and B. cepacia were isolated from the lungs for 2 and 7 days. All strains translocated to the MLN and were detected 3 hours after treatment. B. cepacia was isolated from the spleen and liver 3 hours post-treatment. P. aureofaciens and P. putida translocated to the liver within 3 hours of treatment and P. fluorescens translocated to the spleen. None of the dosed strains were detected extraintestinally after 3 hours. All strains were eliminated from in vitro intestinal continuous cultures. The models described in this study facilitate the identification of potential human safety issues associated with biotechnology agents. JF - Microbial Ecology in Health and Disease AU - George, SE AU - Nelson, G M AU - Boyd, C AU - Kohan, MJ AU - Brooks, L R AD - Environmental Carcinogenesis Division, Mail Drop 68, 86 Alexander Drive, US EPA, Research Triangle Park, NC 27711, USA, george.elizabeth@epa.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 92 EP - 98 VL - 12 IS - 2 SN - 0891-060X, 0891-060X KW - Microbiology Abstracts B: Bacteriology KW - Pseudomonas fluorescens KW - Colonization KW - Pseudomonas aureofaciens KW - Lung KW - Liver KW - Intestine KW - Animal models KW - Spleen KW - Pseudomonas putida KW - Burkholderia cepacia KW - Lymph nodes KW - J 02855:Human Bacteriology: Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17647071?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Microbial+Ecology+in+Health+and+Disease&rft.atitle=Survival+of+environmental+microbial+agents+in+CD-1+mice+following+oral+exposure&rft.au=George%2C+SE%3BNelson%2C+G+M%3BBoyd%2C+C%3BKohan%2C+MJ%3BBrooks%2C+L+R&rft.aulast=George&rft.aufirst=SE&rft.date=2000-05-01&rft.volume=12&rft.issue=2&rft.spage=92&rft.isbn=&rft.btitle=&rft.title=Microbial+Ecology+in+Health+and+Disease&rft.issn=0891060X&rft_id=info:doi/10.1080%2F089106000435482 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudomonas aureofaciens; Burkholderia cepacia; Pseudomonas fluorescens; Pseudomonas putida; Animal models; Colonization; Lung; Intestine; Lymph nodes; Spleen; Liver DO - http://dx.doi.org/10.1080/089106000435482 ER - TY - JOUR T1 - Dormancy strategies in a random environment: Comparing structured and unstructured models AN - 17609792; 4729627 AB - Hatching strategies are studied in a model of population dynamics in a random environment. The strategies are the fraction of dormant eggs that hatch each year. A projection matrix with random elements describes the population dynamics. The model extends the density-independent model of Dan Cohen and the density-dependent model of Stephen Ellner by adding structure to the egg bank, such that a fraction of the dormant eggs are buried and unavailable for hatching each year. Differences between the structured and unstructured models are analysed by deriving a small variance approximation for the population's long-term growth rate and relating the growth rate to the egg bank structure and the environmental parameters. Tuljapurkar and Istock (1993) claimed that structured and unstructured models give very different predictions, especially when dormancy is high. We show that Tuljapurkar and Istock's conclusions are the result of the particular dormancy type in their model, in which the maximum duration of dormancy is 2 years, rather than the addition of population structure. Using parameters estimated from field and experimental studies of the freshwater copepod Diaptomus sanguineus in Bullhead Pond, RI, the density-dependent model correctly predicts that the population should maintain a long-term pool of diapausing eggs, whereas the density-independent model makes the incorrect prediction that all eggs should hatch at their first opportunity. If the per capita burial and emergence rates are low, as may be the case for many plant populations, the ESS optimal hatching strategy is nearly that of an unstructured model with the mortality of non-hatchers increased by the burial rate. JF - Evolutionary Ecology Research AU - Easterling, M R AU - Ellner, S P AD - Pharmacokinetics Branch, US Environmental Protection Agency, MD-74, Research Triangle Park, NC 27711, USA, easterling.michael@epa.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 387 EP - 407 VL - 2 IS - 4 SN - 1522-0613, 1522-0613 KW - Ecology Abstracts KW - Hatching behavior KW - Diapause KW - Dormancy KW - Population dynamics KW - Eggs KW - Models KW - D 04650:Animals - general KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17609792?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Evolutionary+Ecology+Research&rft.atitle=Dormancy+strategies+in+a+random+environment%3A+Comparing+structured+and+unstructured+models&rft.au=Easterling%2C+M+R%3BEllner%2C+S+P&rft.aulast=Easterling&rft.aufirst=M&rft.date=2000-05-01&rft.volume=2&rft.issue=4&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Evolutionary+Ecology+Research&rft.issn=15220613&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Hatching behavior; Population dynamics; Eggs; Dormancy; Diapause; Models ER - TY - JOUR T1 - Comparative estrogenicity of estradiol, ethynyl estradiol and diethylstilbestrol in an in vivo, male sheepshead minnow (Cyprinodon variegatus), vitellogenin bioassay AN - 17602390; 4734635 AB - An in vivo bioasssay for vitellogenin (VTG) synthesis was developed to screen individual chemicals or mixtures of chemicals for potentially estrogenic effects in a marine teleost model. An enzyme-linked immunosorbent assay (ELISA) was used to quantitate VTG synthesis in male sheepshead minnows (Cyprinodon variegatus) exposed to five concentrations of the natural estrogen (17 beta -estradiol), a synthetic, steroidal pharmaceutical estrogen (17 alpha -ethynyl estradiol), or a synthetic, non-steroidal, pharmaceutical estrogen (diethystilbestrol) for 16 days. At an exposure concentration of 20 ng/l, only diethystilbestrol elicited a vitellogenic response. At all test concentrations greater than 100 ng/l, VTG appeared in the plasma in a dose-dependent manner for the three estrogen treatments. Liver VTG mRNA measurements were also made, exhibiting no clear correlations between quantities, nor temporal appearance of the message and mature protein were apparent. This assay is short-term, relatively inexpensive, shows a direct response, and easily quantitated. JF - Aquatic Toxicology AU - Folmar, L C AU - Hemmer, M AU - Hemmer, R AU - Bowman, C AU - Kroll, K AU - Denslow, N D AD - US Environmental Protection Agency, 1 Sabine Island Dr. Gulf Breeze, FL USA Y1 - 2000/05/01/ PY - 2000 DA - 2000 May 01 SP - 77 EP - 88 PB - Elsevier VL - 49 IS - 1-2 SN - 0166-445X, 0166-445X KW - Cyprinodon variegatus KW - ELISA KW - Ethynyl estradiol KW - Sheepshead minnow KW - bioassays KW - diethylstilbestrol KW - estradiol KW - estrogen KW - estrogens KW - vitellogenin KW - Aqualine Abstracts; Toxicology Abstracts; Pollution Abstracts; Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - Chemicals KW - Aquatic organisms KW - Pollution effects KW - Hormones KW - Toxicity tests KW - Bioassay KW - Sex hormones KW - Fish (Cyprinodontiform) KW - 17 beta -Estradiol KW - Testing Procedures KW - Marine KW - Enzyme-linked immunosorbent assay KW - Vitellogenesis KW - Aurelia KW - Toxicity KW - Model Studies KW - Bioassays KW - Water Pollution Effects KW - Liver KW - Toxicity (see also Lethal limits) KW - Pollution (Water) KW - Immunoassays KW - Q1 08346:Physiology, biochemistry, biophysics KW - Q5 08504:Effects on organisms KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution KW - X 24221:Toxicity testing KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17602390?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+Toxicology&rft.atitle=Comparative+estrogenicity+of+estradiol%2C+ethynyl+estradiol+and+diethylstilbestrol+in+an+in+vivo%2C+male+sheepshead+minnow+%28Cyprinodon+variegatus%29%2C+vitellogenin+bioassay&rft.au=Folmar%2C+L+C%3BHemmer%2C+M%3BHemmer%2C+R%3BBowman%2C+C%3BKroll%2C+K%3BDenslow%2C+N+D&rft.aulast=Folmar&rft.aufirst=L&rft.date=2000-05-01&rft.volume=49&rft.issue=1-2&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Aquatic+Toxicology&rft.issn=0166445X&rft_id=info:doi/10.1016%2FS0166-445X%2899%2900076-4 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Bioassays; Vitellogenesis; Pollution effects; Toxicity tests; Sex hormones; Enzyme-linked immunosorbent assay; 17 beta -Estradiol; Chemicals; Aquatic organisms; Liver; Immunoassays; Fish (Cyprinodontiform); Aurelia; Toxicity (see also Lethal limits); Hormones; Pollution (Water); Testing Procedures; Water Pollution Effects; Toxicity; Bioassay; Model Studies; Marine DO - http://dx.doi.org/10.1016/S0166-445X(99)00076-4 ER - TY - JOUR T1 - Effect of irradiance spectra on the photoinduced toxicity of three polycyclic aromatic hydrocarbons AN - 17598176; 4715429 AB - Photoinduced toxicity of polycyclic aromatic hydrocarbons (PAHs) is dependent on the concentration of compounds present and the dose of light received. Of the light present, only those wavelengths absorbed by the compound have the potential to initiate the photochemical events underlying phototoxicity. This suggests that variation in light spectra present in natural waters, arising from variation in dissolved organic carbon composition, is an important determinant of phototoxicity risk in specific, PAH-contaminated waterbodies. To quantify the effect of environmentally realistic variation in light spectra on toxicity, brine shrimp (Artemia salina) assays were conducted under various light spectra and with three PAHs (pyrene, fluoranthene, and anthracene) of known phototoxicity potential. In these spectral assays, the total ultraviolet light present was equivalent; only the spectral characteristics varied. Based on the absorbance spectra of these PAHs, it was predicted that toxicity, quantified using immobilization as the endpoint, would vary significantly among light spectra in pyrene assays, but not in anthracene assays, and that variation in toxicity in fluoranthene assays would be intermediate. The results supported these assumptions. In the pyrene exposures, the glass filter time to 50% population immobilization (IT50) (39.5 min) was 117% longer than the KCr filter IT50 (18.2 min). In the fluoranthene exposures, the glass filter IT50 (49.5 min) was 27% longer than the KCr filter IT50 (39.1 min). In the anthracene exposures, the glass filter IT50 (62.2 min) was not statistically different from the KCr filter IT50 (63.8 min). Comparison of these results with the results of assays conducted under neutral-density filters (that change intensity but not spectral distribution) demonstrate that multiplying spectral intensity by wavelength-specific absorbance accurately predicts relative photoinduced toxicity among the experimental treatments. These results indicate that quantifying the spectral characteristics of PAH-contaminated aquatic environments may be an important component of risk assessment at these sites. JF - Environmental Toxicology and Chemistry AU - Diamond, SA AU - Mount AU - Burkhard, L P AU - Ankley, G T AU - Makynen, E A AU - Leonard, EN AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN 55804-2595, USA, diamond.steve@epa.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 1389 EP - 1396 VL - 19 IS - 5 SN - 0730-7268, 0730-7268 KW - Artemia salina KW - anthracene KW - fluoranthene KW - pyrene KW - Water Resources Abstracts; Toxicology Abstracts; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Aquatic organisms KW - Anthracene KW - Shrimp KW - Irradiance KW - Spectral Analysis KW - Bioassay KW - Phototoxicity KW - Aromatic hydrocarbons KW - Dissolved organic carbon KW - Photochemical reactions KW - Polycyclic aromatic hydrocarbons KW - Hydrocarbons KW - Fate of Pollutants KW - Organic Carbon KW - Brackish KW - Toxicity KW - Pollution surveys KW - Water pollution KW - Light effects KW - Filters KW - Aromatic Compounds KW - Bioassays KW - Irradiation KW - Toxicity testing KW - Hazard assessment KW - Q5 08503:Characteristics, behavior and fate KW - X 24190:Polycyclic hydrocarbons KW - Q1 08422:Environmental effects KW - SW 3030:Effects of pollution KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17598176?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Effect+of+irradiance+spectra+on+the+photoinduced+toxicity+of+three+polycyclic+aromatic+hydrocarbons&rft.au=Diamond%2C+SA%3BMount%3BBurkhard%2C+L+P%3BAnkley%2C+G+T%3BMakynen%2C+E+A%3BLeonard%2C+EN&rft.aulast=Diamond&rft.aufirst=SA&rft.date=2000-05-01&rft.volume=19&rft.issue=5&rft.spage=1389&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Aromatic hydrocarbons; Toxicity; Pollution surveys; Photochemical reactions; Hazard assessment; Light effects; Phototoxicity; Polycyclic aromatic hydrocarbons; Irradiance; Water pollution; Anthracene; Aquatic organisms; Bioassays; Dissolved organic carbon; Toxicity testing; Aromatic Compounds; Filters; Shrimp; Hydrocarbons; Organic Carbon; Irradiation; Fate of Pollutants; Spectral Analysis; Bioassay; Brackish ER - TY - JOUR T1 - Some bioaccumulation factors and biota-sediment accumulation factors for polycyclic aromatic hydrocarbons in lake trout AN - 17598093; 4715434 AB - Bioaccumulation factors (BAFs) and biota-sediment accumulation factors (BSAFs) for phenanthrene, fluoranthene, pyrene, benz[a]anthracene, and chrysene/triphenylene were calculated using the tissue data of Zabik et al. for Salvelinus namaycush siscowet with a 20.5% lipid content, the water data of Baker and Eisenreich, and the sediment data of Baker and Eisenreich for the Lake Superior ecosystem. Log BAFs, both lipid normalized and based on the freely dissolved concentration of the chemical in the water, of 1.95, 3.22, 4.72, 4.73, and 3.61 were calculated for phenanthrene, fluoranthene, pyrene, benz[a]anthracene, and chrysene/triphenylene, respectively. The BSAFs for phenanthrene, fluoranthene, pyrene, benz[a]anthracene, and chrysene/triphenylene were 0.00011, 0.00016, 0.0071, 0.0054, and 0.00033, respectively. JF - Environmental Toxicology and Chemistry AU - Burkhard, L P AU - Lukasewycz, M T AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Blvd., Duluth, MN 55804, USA, burkhard.lawrence@epamail.epa.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 1427 EP - 1429 VL - 19 IS - 5 SN - 0730-7268, 0730-7268 KW - 1,2-Benzanthracene KW - North America, Superior L. KW - Salmonids KW - Salvelinus namaycush siscowet KW - benz(a)anthracene KW - chrysene KW - fluoranthene KW - phenanthrene KW - pyrene KW - triphenylene KW - ASFA 3: Aquatic Pollution & Environmental Quality; Toxicology Abstracts; Water Resources Abstracts; Pollution Abstracts KW - Ecosystems KW - Lipids KW - Pollution effects KW - Pyrene KW - Freshwater fish KW - Biota KW - Lakes KW - Aromatic hydrocarbons KW - Salmonidae KW - Fluoranthene KW - Sediment pollution KW - Polycyclic aromatic hydrocarbons KW - Hydrocarbons KW - Toxicity KW - Sediments KW - Aromatic Compounds KW - Phenanthrene KW - Bioaccumulation KW - Trout KW - Accumulation KW - X 24190:Polycyclic hydrocarbons KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17598093?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Some+bioaccumulation+factors+and+biota-sediment+accumulation+factors+for+polycyclic+aromatic+hydrocarbons+in+lake+trout&rft.au=Burkhard%2C+L+P%3BLukasewycz%2C+M+T&rft.aulast=Burkhard&rft.aufirst=L&rft.date=2000-05-01&rft.volume=19&rft.issue=5&rft.spage=1427&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Bioaccumulation; Aromatic hydrocarbons; Pollution effects; Fluoranthene; Phenanthrene; Polycyclic aromatic hydrocarbons; Lipids; Pyrene; Lakes; Biota; Toxicity; Freshwater fish; Aromatic Compounds; Ecosystems; Trout; Hydrocarbons; Accumulation; Sediments; Salmonidae ER - TY - JOUR T1 - Characterization of the Period of Sensitivity of Fetal Male Sexual Development to Vinclozolin AN - 17522146; 4710013 AB - Vinclozolin is a fungicide whose metabolites are androgen receptor (AR) antagonists. Previous work in our laboratory showed that perinatal administration of vinclozolin to rats results in malformations of the external genitalia, permanent nipples, reduced anogenital distance (AGD), and reduced seminal vesicle, ventral prostate, and epididymal weights. The objectives of this study were to determine the most sensitive period of fetal development to antiandrogenic effects of vinclozolin and to identify a dosing regime that would induce malformations in all of the male offspring. Pregnant rats were dosed with 400 mg vinclozolin/kg/day on either GD 12-13, GD 14-15, GD 16-17, GD 18-19, or GD 20-21, or with corn oil (2.5 ml/kg) from GD 12 through GD 21 (Experiment 1). All 2-day periods in which significant effects were produced were included in an extended dosing period, GD 14 through GD 19, in which pregnant rats were dosed with 200 or 400 mg vinclozolin/kg (Experiment 2). In Experiment 1, significant effects of vinclozolin were observed in rats dosed on gestation days (GD) 14-15, GD 16-17, and GD 18-19, while the most significant effects were observed in rats treated on GD 16-17. These effects include reduced AGD; presence of areolas, nipples, and malformations of the phallus; and reduced levator ani/bulbocavernosus weight. In contrast, ventral prostate weight was reduced only in the GD 18-19 group. The expanded dosing regime (Experiment 2) increased the percentage of male offspring with genital malformations (> 92%), and retained nipples (100%), further reduced the weight of the ventral prostate, and reduced the weight of the seminal vesicles. In addition, malformations were more severe and included vaginal pouch and ectopic/undescended testes. The latter was induced only in the 400 mg/kg group. These data indicate that the reproductive system of the fetal male rat is most sensitive to antiandrogenic effects of vinclozolin on GD 16 and 17, although effects are more severe and 100% of male offspring are affected with administration of vinclozolin from GD 14 through GD 19. JF - Toxicological Sciences AU - Wolf, C J AU - LeBlanc, G A AU - Ostby, J S AU - Gray, LE Jr AD - Endocrinology Branch, MD 72, Reproductive Toxicology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 152 EP - 161 PB - Academic Press, Inc. VL - 55 IS - 1 SN - 1096-6080, 1096-6080 KW - rats KW - vinclozolin KW - Toxicology Abstracts KW - Pesticides KW - Sex differentiation KW - Reproductive system KW - Androgens KW - Pregnancy KW - X 24134:Pathology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17522146?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Characterization+of+the+Period+of+Sensitivity+of+Fetal+Male+Sexual+Development+to+Vinclozolin&rft.au=Wolf%2C+C+J%3BLeBlanc%2C+G+A%3BOstby%2C+J+S%3BGray%2C+LE+Jr&rft.aulast=Wolf&rft.aufirst=C&rft.date=2000-05-01&rft.volume=55&rft.issue=1&rft.spage=152&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pesticides; Reproductive system; Pregnancy; Sex differentiation; Androgens ER - TY - JOUR T1 - Evaluating Noncancer Effects of Trichloroethylene: Dosimetry, Mode of Action, and Risk Assessment AN - 17032662; 4761362 AB - Alternatives for developing chronic exposure limits for noncancer effects of trichloroethylene (TCE) were evaluated. These alternatives were organized within a framework for dose-response assessment - exposure:dosimetry (pharmacokinetics):mode of action (pharmacodynamics): response. This framework provides a consistent structure within which to make scientific judgments about available information, its interpretation, and use. These judgments occur in the selection of critical studies, internal dose metrics, pharmacokinetic models, approaches for interspecies extrapolation of pharmacodynamics, and uncertainty factors. Potentially limiting end points included developmental eye malformations, liver effects, immunotoxicity, and kidney toxicity from oral exposure and neurological, liver, and kidney effects by inhalation. Each end point was evaluated quantitatively using several methods. Default analyses used the traditional no-observed adverse effect level divided by uncertainty factors and the benchmark dose divided by uncertainty factors methods. Subsequently, mode-of-action and pharmacokinetic information were incorporated. Internal dose metrics were estimated using a physiologically based pharmacokinetic (PBPK) model for TCE and its major metabolites. This approach was notably useful with neurological and kidney toxicities. The human PBPK model provided estimates of human exposure doses for the internal dose metrics. Pharmacodynamic data or default assumptions were used for interspecies extrapolation. For liver and neurological effects, humans appear no more sensitive than rodents when internal dose metrics were considered. Therefore, the interspecies uncertainty factor was reduced, illustrating that uncertainty factors are a semiquantitative approach fitting into the organizational framework. Incorporation of pharmacokinetics and pharmacodynamics can result in values that differ significantly from those obtained with the default methods. JF - Environmental Health Perspectives AU - Barton, HA AU - Clewell, HJ III AD - U.S. EPA, MD-74, Pharmacokinetics Branch, NHEERL, 86 TW Alexander Dr., Research Triangle Park, NC 27711, USA, habarton@alum.mit.edu Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 323 EP - 334 VL - 108 SN - 0091-6765, 0091-6765 KW - oral administration KW - chronic exposure KW - man KW - rodents KW - dose-response effects KW - immunotoxicity KW - trichloroethylene KW - Risk Abstracts; Health & Safety Science Abstracts; Toxicology Abstracts KW - Inhalation KW - Risk assessment KW - Dosimetry KW - Malformations KW - Immunotoxicity KW - Dose-response effects KW - Trichloroethylene KW - H 14000:Toxicology KW - R2 23060:Medical and environmental health KW - X 24152:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17032662?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Health+Perspectives&rft.atitle=Evaluating+Noncancer+Effects+of+Trichloroethylene%3A+Dosimetry%2C+Mode+of+Action%2C+and+Risk+Assessment&rft.au=Barton%2C+HA%3BClewell%2C+HJ+III&rft.aulast=Barton&rft.aufirst=HA&rft.date=2000-05-01&rft.volume=108&rft.issue=&rft.spage=323&rft.isbn=&rft.btitle=&rft.title=Environmental+Health+Perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Dose-response effects; Risk assessment; Dosimetry; Trichloroethylene; Malformations; Immunotoxicity; Inhalation ER - TY - JOUR T1 - Prolonged elevation in blood pressure in the unrestrained rat exposed to chlorpyrifos. AN - 71049636; 10773358 AB - Organophosphate (OP) pesticides are likely to alter the regulation of blood pressure (BP) because (i) BP control centers in the brain stem utilize cholinergic synapses and (ii) the irreversible inhibition of acetylcholinesterase activity by OP's causes cholinergic stimulation in the CNS. This study used radiotelemetric techniques to monitor systolic (S), diastolic (D), mean (M) BP, pulse pressure (systolic-diastolic), heart rate (HR), core temperature (T(c)), and motor activity in male Long-Evans rats treated with the OP pesticide chlorpyrifos (CHP) at doses of 0, 5, 10, and 25 mg/kg (p.o.) at 15:00 h 10 and 25 mg/kg CHP led to parallel elevations in S-BP, M-BP, and D-BP within 2 h after dosing. BP increased 15-20 mmHg above controls and increases persisted throughout the night and into the next day. HR decreased slightly in rats administered 25 but not 10 mg/kg CHP. T(c) was reduced by treatment with 25 mg/kg CHP and then increased above controls the next day. Motor activity was reduced by treatment with 25 but not 10 mg/kg CHP. Pulse pressure was elevated by 2-4 mmHg for 40 h after exposure to 10 and 25 mg/kg CHP. The increase in BP without an increase in HR suggests that CHP increases total peripheral resistance and may alter the baroreflex control of BP. Cholinergic stimulation of the CNS may explain the initial effects of CHP on BP; however, the persistent elevation suggests an involvement of neurohumoral pressor pathways. JF - Toxicology AU - Gordon, C J AU - Padnos, B K AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, MD-74B, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA. gordon.christopher@epamail.epa.gov Y1 - 2000/04/20/ PY - 2000 DA - 2000 Apr 20 SP - 1 EP - 13 VL - 146 IS - 1 SN - 0300-483X, 0300-483X KW - Cholinesterase Inhibitors KW - 0 KW - Insecticides KW - Chlorpyrifos KW - JCS58I644W KW - Index Medicus KW - Rats KW - Administration, Oral KW - Animals KW - Heart Rate -- drug effects KW - Rats, Long-Evans KW - Body Temperature -- drug effects KW - Dose-Response Relationship, Drug KW - Telemetry KW - Electrocardiography KW - Motor Activity -- drug effects KW - Male KW - Insecticides -- toxicity KW - Cholinesterase Inhibitors -- administration & dosage KW - Cholinesterase Inhibitors -- toxicity KW - Chlorpyrifos -- administration & dosage KW - Chlorpyrifos -- toxicity KW - Insecticides -- administration & dosage KW - Blood Pressure -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71049636?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology&rft.atitle=Prolonged+elevation+in+blood+pressure+in+the+unrestrained+rat+exposed+to+chlorpyrifos.&rft.au=Gordon%2C+C+J%3BPadnos%2C+B+K&rft.aulast=Gordon&rft.aufirst=C&rft.date=2000-04-20&rft.volume=146&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Toxicology&rft.issn=0300483X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-19 N1 - Date created - 2000-06-19 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Egg production by colonies of a gorgonian coral AN - 17596197; 4714716 AB - Reproductive success, the production and fertilization of gametes, is a key component of fitness. Among many colonial marine invertebrates, the production of gametes by a colony is a function of both gamete production per module (e.g., polyp, zooid) and the number of modules in the colony (i.e., colony size). We examined variance in gamete production per polyp and egg production per colony over a range of colony sizes, and the relationship between egg production and growth in the common Caribbean gorgonian Plexaura flexuosa. The number of polyps per colony and the average number of mature eggs per polyp both were greater among larger female colonies (>70 cm in height) than among smaller colonies (<70 cm), resulting in a 1 to 2 order of magnitude increase in whole colony egg release for the larger colonies. In a group of 24 colonies, 98% of the 9.2 arrow left 10 super(6) eggs produced in one spawning event came from the 12 colonies taller than 70 cm. Branch extension rates showed no relationship to colony size, but whole colony relative growth appears to decrease as colony size increases. This suggests that proportionately less energy is used for growth as a colony gets larger, and thus may be available for reproduction. JF - Marine Ecology Progress Series AU - Beiring, E A AU - Lasker, H R AD - Office of Wetlands, Oceans, and Watersheds (4504F), U.S. Environmental Protection Agency, Ariel Rios Building, 1200 Pennsylvania Ave. NW, Washington, DC 20460, USA, beiring.elizabeth@epa.gov Y1 - 2000/04/18/ PY - 2000 DA - 2000 Apr 18 SP - 169 EP - 177 VL - 196 SN - 0171-8630, 0171-8630 KW - Gorgonians KW - Sea fans KW - Sea feathers KW - Oceanic Abstracts; Ecology Abstracts KW - Gametogenesis KW - Gametes KW - Marine invertebrates KW - Sexual reproduction KW - Polyps KW - Spawning KW - Biological fertilization KW - Eggs KW - Colonies KW - Fecundity KW - ASW, Caribbean Sea KW - Coral KW - Plexaura flexuosa KW - Reproduction KW - Gorgonacea KW - D 04655:Invertebrates - general KW - O 1030:Invertebrates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17596197?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Ecology+Progress+Series&rft.atitle=Egg+production+by+colonies+of+a+gorgonian+coral&rft.au=Beiring%2C+E+A%3BLasker%2C+H+R&rft.aulast=Beiring&rft.aufirst=E&rft.date=2000-04-18&rft.volume=196&rft.issue=&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Marine+Ecology+Progress+Series&rft.issn=01718630&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Plexaura flexuosa; Gorgonacea; ASW, Caribbean Sea; Marine invertebrates; Colonies; Coral; Polyps; Sexual reproduction; Gametogenesis; Biological fertilization; Spawning; Fecundity; Gametes; Eggs; Reproduction ER - TY - JOUR T1 - Glucocorticoid receptor regulation in the rat embryo: a potential site for developmental toxicity? AN - 71041799; 10764636 AB - Glucocorticoids play a key role in controlling numerous cellular processes during embryogenesis and fetal development. Excess glucocorticoids during development have been linked to dysmorphogenesis and/or intrauterine growth impairment in rodents. The actions of glucocorticoids are mediated by interaction with their receptors. Negative feedback regulation of glucocorticoid receptor (GR) is important for limiting cellular sensitivity to the hormones. Hence, acute exposure of the adult rat to the synthetic glucocorticoid dexamethasone (DEX) reduced both GR mRNA and protein in a variety of tissues that include hippocampus and liver, in a dose- and time-dependent fashion. Reduction in GR mRNA and protein were observable when DEX was given repeatedly at doses as low as 0. 05 mg/kg. In the control whole rat embryo, GR mRNA was low but measurable at as early as gestational day (GD) 10, but underwent rapid ontogenetic increase in the ensuring days. In contrast to the adult, neither GR mRNA nor protein in the whole rat embryo was affected by acute or repeated DEX administration to pregnant rats on GD10-13, even at doses as high as 0.8 mg/kg. Similar results were obtained in embryonic palate and liver, tissues known to be glucocorticoid targets. These data suggest that GR autoregulation does not occur during organogenesis in the rat. Accordingly, hormonal elevations from stress or chemical insults can be transduced unrestrictedly, ultimately leading to aberrant cell function and development. The unique mode of GR regulation seen in the embryonic cells may provide a potential common mechanism for developmental perturbation and toxicity for a variety of insults. JF - Toxicology and applied pharmacology AU - Ghosh, B AU - Wood, C R AU - Held, G A AU - Abbott, B D AU - Lau, C AD - National Research Council, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. Y1 - 2000/04/15/ PY - 2000 DA - 2000 Apr 15 SP - 221 EP - 229 VL - 164 IS - 2 SN - 0041-008X, 0041-008X KW - Glucocorticoids KW - 0 KW - Receptors, Glucocorticoid KW - RNA KW - 63231-63-0 KW - Dexamethasone KW - 7S5I7G3JQL KW - Index Medicus KW - Rats KW - Animals KW - Rats, Sprague-Dawley KW - Analysis of Variance KW - Hippocampus -- metabolism KW - RNA -- isolation & purification KW - Reverse Transcriptase Polymerase Chain Reaction KW - Down-Regulation -- drug effects KW - Female KW - Pregnancy KW - Hippocampus -- drug effects KW - Dexamethasone -- toxicity KW - Receptors, Glucocorticoid -- drug effects KW - Glucocorticoids -- toxicity KW - Embryo, Mammalian -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71041799?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+and+applied+pharmacology&rft.atitle=Glucocorticoid+receptor+regulation+in+the+rat+embryo%3A+a+potential+site+for+developmental+toxicity%3F&rft.au=Ghosh%2C+B%3BWood%2C+C+R%3BHeld%2C+G+A%3BAbbott%2C+B+D%3BLau%2C+C&rft.aulast=Ghosh&rft.aufirst=B&rft.date=2000-04-15&rft.volume=164&rft.issue=2&rft.spage=221&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+applied+pharmacology&rft.issn=0041008X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-05-22 N1 - Date created - 2000-05-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Perturbation by the PCB Mixture Aroclor 1254 of GABA Receptor-Mediated Calcium and Chloride Responses during Maturation in Vitro of Rat Neocortical Cells AN - 17523329; 4709626 AB - GABA sub(A) receptors are targets of highly chlorinated environmental chemicals and have important roles in developing neurons. As such, we examined effects of polychlorinated biphenyls (PCBs) on GABA sub(A) receptor responses in primary cultures of rat neocortical cells using fluorescence imaging techniques. Between days in vitro (DIV) 5 and 8, the effect of GABA sub(A) receptor stimulation switched from excitatory (Ca super(2+) entry following a Cl super(-) efflux; DIV less than or equal to 6) to inhibitory (Cl super(-) influx without a Ca super(2+) rise; DIV greater than or equal to 7). GABA sub(A)-receptor-stimulated increases in [Ca super(2+)] sub(i) were diminished in a concentration-dependent (1-20 mu M) manner following 1 h of exposure to the PCB mixture Aroclor 1254 (A1254), with significant reductions at concentrations as low as 2 mu M. A1254 (1-20 mu M) also led to concentration-dependent increases in basal [Ca super(2+)] sub(i), irrespective of DIV. A1254 (10 and 20 mu M) significantly increased basal Ca super(2+) sub(i); the Ca super(2+) sub(i) was elevated to 426 plus or minus 39 nM by 20 mu M A1254 but this concentration was not cytotoxic at 1 h. In addition, the mixture, A1254, as well as ortho- and non-ortho-chlorinated PCB congeners (IUPAC Nos. 4, 15, 126, and 138; 5-10 mu M) individually decreased GABA sub(A)-stimulated Ca super(2+) sub(i) responses and this tended not to depend on increases in basal Ca super(2+) sub(i). In cultures DIV 7 and older, A1254 (20 mu M) also impaired inhibitory GABA sub(A) responses as evidenced by an similar to 50% reduction of GABA sub(A)-stimulated Cl super(-) influx (from similar to 6 to 8 mM net accumulation in controls). The results demonstrate that: (1) GABA sub(A) receptor increases in Ca super(2+) sub(i) and Cl super(-) sub(i) are inhibited by 2-20 mu M A1254, regardless of whether the responses are at excitatory or inhibitory stages of development; (2) Ca super(2+) sub(i) homeostasis in cortical cells is disrupted by 10 mu M A1254; yet (3) disruption of excitatory GABA sub(A) responses by A1254 or PCB congeners does not necessarily depend on impaired Ca super(2+) homeostasis. These novel observations suggest that GABA sub(A) receptor responses are a sensitive target for PCB effects in the rat developing nervous system. JF - Toxicology and Applied Pharmacology AU - Inglefield, J R AU - Shafer, T J AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, Research Triangle Park, 27711, North Carolina Y1 - 2000/04/15/ PY - 2000 DA - 2000 Apr 15 SP - 184 EP - 195 PB - Academic Press VL - 164 IS - 2 SN - 0041-008X, 0041-008X KW - rats KW - GABA A receptors KW - Aroclor 1254 KW - gamma -Aminobutyric acid A receptors KW - CSA Neurosciences Abstracts; Toxicology Abstracts; Calcium & Calcified Tissue Abstracts KW - g-Aminobutyric acid A receptors KW - Organochlorine compounds KW - Calcium KW - Chloride KW - Development KW - Neurogenesis KW - Calcium influx KW - Nervous system KW - Cortex KW - PCB KW - Calcium homeostasis KW - ^g-Aminobutyric acid A receptors KW - X 24155:Biochemistry KW - N3 11044:Mammals (except primates) KW - T 20019:Cellular calcium, channels and currents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17523329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+and+Applied+Pharmacology&rft.atitle=Perturbation+by+the+PCB+Mixture+Aroclor+1254+of+GABA+Receptor-Mediated+Calcium+and+Chloride+Responses+during+Maturation+in+Vitro+of+Rat+Neocortical+Cells&rft.au=Inglefield%2C+J+R%3BShafer%2C+T+J&rft.aulast=Inglefield&rft.aufirst=J&rft.date=2000-04-15&rft.volume=164&rft.issue=2&rft.spage=184&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+Applied+Pharmacology&rft.issn=0041008X&rft_id=info:doi/10.1006%2Ftaap.2000.8898 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - PCB; Calcium; Chloride; Cortex; Nervous system; Organochlorine compounds; ^g-Aminobutyric acid A receptors; Calcium influx; Calcium homeostasis; Development; Neurogenesis DO - http://dx.doi.org/10.1006/taap.2000.8898 ER - TY - JOUR T1 - Carbon monoxide poisoning--a public health perspective. AN - 71051115; 10771127 AB - Carbon monoxide (CO) may be the cause of more than one-half of the fatal poisonings reported in many countries; fatal cases also are grossly under-reported or misdiagnosed by medical professionals. Therefore, the precise number of individuals who have suffered from CO intoxication is not known. The health effects associated with exposure to CO range from the more subtle cardiovascular and neurobehavioral effects at low concentrations to unconsciousness and death after acute or chronic exposure to higher concentrations of CO. The morbidity and mortality resulting from the latter exposures are described briefly to complete the picture of CO exposure in present-day society. The symptoms, signs, and prognosis of acute CO poisoning correlate poorly with the level of carboxyhemoglobin (COHb) measured at the time of hospital admission; however, because CO poisoning is a diagnosis frequently overlooked, the importance of measuring COHb in suspicious settings cannot be overstated. The early symptoms (headache, dizziness, weakness, nausea, confusion, disorientation, and visual disturbances) also have to be emphasized, especially if they recur with a regular periodicity or in the same environment. Complications occur frequently in CO poisoning. Immediate death is most likely cardiac in origin because myocardial tissues are most sensitive to the hypoxic effects of CO. Severe poisoning results in marked hypotension, lethal arrhythmias, and electrocardiographic changes. Pulmonary edema may occur. Neurological manifestation of acute CO poisoning includes disorientation, confusion, and coma. Perhaps the most insidious effect of CO poisoning is the development of delayed neuropsychiatric impairment within 2-28 days after poisoning and the slow resolution of neurobehavioral consequences. Carbon monoxide poisoning during pregnancy results in high risk for the mother by increasing the short-term complication rate and for the fetus by causing fetal death, developmental disorders, and chronic cerebral lesions. In conclusion, CO poisoning occurs frequently; has severe consequences, including immediate death; involves complications and late sequelae; and often is overlooked. Efforts in prevention and in public and medical education should be encouraged. JF - Toxicology AU - Raub, J A AU - Mathieu-Nolf, M AU - Hampson, N B AU - Thom, S R AD - National Center for Environmental Assessment, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA. raub.james@epa.gov Y1 - 2000/04/07/ PY - 2000 DA - 2000 Apr 07 SP - 1 EP - 14 VL - 145 IS - 1 SN - 0300-483X, 0300-483X KW - Index Medicus KW - Humans KW - Prognosis KW - Carbon Monoxide Poisoning -- complications KW - Carbon Monoxide Poisoning -- therapy KW - Carbon Monoxide Poisoning -- prevention & control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71051115?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology&rft.atitle=Carbon+monoxide+poisoning--a+public+health+perspective.&rft.au=Raub%2C+J+A%3BMathieu-Nolf%2C+M%3BHampson%2C+N+B%3BThom%2C+S+R&rft.aulast=Raub&rft.aufirst=J&rft.date=2000-04-07&rft.volume=145&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Toxicology&rft.issn=0300483X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-01 N1 - Date created - 2000-06-01 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Ascorbic acid reduction of active chlorine prior to determining Ames mutagenicity of chlorinated natural organic matter (NOM). AN - 72576900; 11253037 AB - Many potable water disinfection byproducts (DBPs) that result from the reaction of natural organic matter (NOM) with oxidizing chlorine are known or suspected to be carcinogenic and mutagenic. The Ames assay is routinely used to assess an overall level of mutagenicity for all compounds in samples from potable water supplies or laboratory studies of DBP formation. Reduction of oxidizing disinfectants is required since these compounds can kill the bacteria or react with the agar, producing chlorinated byproducts. When mutagens are collected by passing potable water through adsorbing resins, active chlorine compounds react with the resin, producing undesirable mutagenic artifacts. The bioanalytical and chemoanalytical needs of drinking water DBP studies required a suitable reductant. Many of the candidate compounds failed to meet those needs, including 2,4-hexadienoic (sorbic) acid, 2,4-pentanedione (acetylacetone), 2-butenoic (crotonic) acid, 2-butenedioic (maleic and fumaric) acids and buten-2-ol (crotyl alcohol). Candidates were rejected if they (1) reacted too slowly with active chlorine, (2) formed mutagenic byproducts, or (3) interfered in the quantitation of known chlorination DBPs. L-Ascorbic acid reacts rapidly and stoichiometrically with active chlorine and has limited interactions with halogenated DBPs. In this work, we found no interference from L-ascorbic acid or its oxidation product (dehydroascorbic acid) in mutagenicity assays of chlorinated NOM using Salmonella typhimurium TA100, with or without metabolic activation (S9). This was demonstrated for both aqueous solutions of chlorinated NOM and concentrates derived from the involatile, ether-extractable chlorinated byproducts of those solutions. JF - Journal of environmental monitoring : JEM AU - Urbansky, E T AU - Schenck, K M AD - United States Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Cincinnati, Ohio 45268, USA. Urbansky.Edward@EPA.gov Y1 - 2000/04// PY - 2000 DA - April 2000 SP - 161 EP - 163 VL - 2 IS - 2 SN - 1464-0325, 1464-0325 KW - Disinfectants KW - 0 KW - Organic Chemicals KW - Chlorine KW - 4R7X1O2820 KW - Ascorbic Acid KW - PQ6CK8PD0R KW - Index Medicus KW - Oxidation-Reduction KW - Mutagenicity Tests KW - Reproducibility of Results KW - Water Supply KW - Salmonella typhimurium -- drug effects KW - Ascorbic Acid -- pharmacology KW - Organic Chemicals -- adverse effects KW - Disinfectants -- adverse effects KW - Organic Chemicals -- metabolism KW - Chlorine -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72576900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+environmental+monitoring+%3A+JEM&rft.atitle=Ascorbic+acid+reduction+of+active+chlorine+prior+to+determining+Ames+mutagenicity+of+chlorinated+natural+organic+matter+%28NOM%29.&rft.au=Urbansky%2C+E+T%3BSchenck%2C+K+M&rft.aulast=Urbansky&rft.aufirst=E&rft.date=2000-04-01&rft.volume=2&rft.issue=2&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+monitoring+%3A+JEM&rft.issn=14640325&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-03-29 N1 - Date created - 2001-03-16 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Non-carcinogenic effects of TCDD in animals. AN - 71257391; 10912242 AB - Exposure to TCDD and related chemicals leads to a plethora of effects in multiple species, tissues, and stages of development. Responses range from relatively simple biochemical alterations through overtly toxic responses, including lethality. The spectrum of effects shows some species variability, but many effects are seen in multiple wildlife, domestic, and laboratory species, ranging from fish through birds and mammals. The same responses can be generated regardless of the route of exposure, although the administered dose may vary. The body burden appears to be the most appropriate dosimetric. Many of the effects often attributed to TCDD are associated with relatively high doses: lethality, wasting, lymphoid and gonadal atrophy, chloracne, hepatotoxicity, adult neurotoxicity, and cardiotoxicity. Changes in multiple endocrine and growth factor systems have been reported in a manner which is tissue, sex, and age-dependent. The most sensitive adverse effects observed in multiple species appear to be developmental, including effects on the developing immune, nervous, and reproductive systems. Such effects have been observed at maternal body burdens in the range of 30-80 ng/kg in both non-human primates and rodents. Biochemical effects on cytokine expression and metabolizing enzymes occur at body burdens which are within a factor of ten of the clearly adverse developmental responses. Thus, effects on the immune system, learning, and the developing reproductive system of multiple animals occur at body burdens which are close to those present in the background human population. JF - Food additives and contaminants AU - Birnbaum, L S AU - Tuomisto, J AD - National Health and Environmental Effects Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, NC 27711-2055, USA. Y1 - 2000/04// PY - 2000 DA - April 2000 SP - 275 EP - 288 VL - 17 IS - 4 SN - 0265-203X, 0265-203X KW - Environmental Pollutants KW - 0 KW - Polychlorinated Dibenzodioxins KW - Index Medicus KW - Animals KW - Chemical and Drug Induced Liver Injury KW - Body Burden KW - Endocrine System Diseases -- chemically induced KW - Acne Vulgaris -- chemically induced KW - Male KW - Female KW - Prenatal Exposure Delayed Effects KW - Pregnancy KW - Environmental Pollutants -- toxicity KW - Polychlorinated Dibenzodioxins -- adverse effects KW - Polychlorinated Dibenzodioxins -- toxicity KW - Environmental Pollutants -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71257391?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+additives+and+contaminants&rft.atitle=Non-carcinogenic+effects+of+TCDD+in+animals.&rft.au=Birnbaum%2C+L+S%3BTuomisto%2C+J&rft.aulast=Birnbaum&rft.aufirst=L&rft.date=2000-04-01&rft.volume=17&rft.issue=4&rft.spage=275&rft.isbn=&rft.btitle=&rft.title=Food+additives+and+contaminants&rft.issn=0265203X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-08-22 N1 - Date created - 2000-08-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Generic assessment endpoints are needed for ecological risk assessment. AN - 71196782; 10859778 AB - This article presents arguments for the development of generic assessment endpoints for ecological risk assessment. Generic assessment endpoints would be ecological entities and attributes that are assumed to be worthy of protection in most contexts. The existence of generic assessment endpoints would neither create a requirement that they be used in every assessment nor preclude the use of other assessment endpoints. They would simply be a starting point in the process of identifying the assessment endpoints for a particular assessment. They are needed to meet legal mandates, to provide a floor for environmental degradation, to provide some consistency in environmental regulation, as exemplars for site- or project-specific assessment endpoints, to allow development of methods and models, to give risk managers the courage to act, for screening and site-independent assessments, to support environmental monitoring, to facilitate communication, and to avoid paralysis by analysis. Generic assessment endpoints should include not only a list of entities and attributes, but also explanations of each endpoint, guidance on their use and interpretation, and measures and models that could be used to estimate them. JF - Risk analysis : an official publication of the Society for Risk Analysis AU - Suter, G W AD - National Center for Environmental Assessment-Cincinnati, U.S. Environmental Protection Agency, OH 45268, USA. suter.glenn@epamail.epa.gov Y1 - 2000/04// PY - 2000 DA - April 2000 SP - 173 EP - 178 VL - 20 IS - 2 SN - 0272-4332, 0272-4332 KW - Index Medicus KW - United States KW - Environmental Pollution -- prevention & control KW - Ecosystem KW - United States Environmental Protection Agency KW - Humans KW - Risk Management KW - Communication KW - Guidelines as Topic KW - Decision Making KW - Environmental Monitoring -- methods KW - Models, Theoretical KW - Ecology KW - Risk Assessment -- classification KW - Risk Assessment -- organization & administration KW - Risk Assessment -- methods KW - Risk Assessment -- legislation & jurisprudence UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71196782?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Risk+analysis+%3A+an+official+publication+of+the+Society+for+Risk+Analysis&rft.atitle=Generic+assessment+endpoints+are+needed+for+ecological+risk+assessment.&rft.au=Suter%2C+G+W&rft.aulast=Suter&rft.aufirst=G&rft.date=2000-04-01&rft.volume=20&rft.issue=2&rft.spage=173&rft.isbn=&rft.btitle=&rft.title=Risk+analysis+%3A+an+official+publication+of+the+Society+for+Risk+Analysis&rft.issn=02724332&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-07-06 N1 - Date created - 2000-07-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - CONF T1 - Evaluation of biologically based dose-response modeling for developmental toxicity: a workshop report. AN - 71183544; 10854125 AB - Biologically based dose-response (BBDR) modeling represents a novel approach for quantitative assessment of health risk by incorporating pharmacokinetic and pharmacodynamic characteristics of a chemical and by relating the immediate cellular responses to a cascade of aberrant biological actions that leads to detectable adverse outcomes. The quantitative relationship of each of the intervening events can be described in mathematical forms that are amenable for adjustment and extrapolation over a range of doses and across species. A team of investigators at the Reproductive Toxicology Division of the U.S. Environmental Protection Agency has explored the feasibility of BBDR modeling by examining the developmental toxicity of a known teratogen, 5-fluorouracil. A panel of researchers from academic and industrial laboratories, biomathematical modelers, and risk assessment scientists was convened in a workshop to evaluate the approaches undertaken by the EPA team and to discuss the future prospects of BBDR modeling. This report summarizes the lessons learned from one approach to BBDR modeling and comments from the panelists: while it is possible to incorporate mechanistic information into quantitative dose-response models for the assessment of health risks, the process is enormously data-intensive and costly; in addition, the confidence of the model is directly proportional to our current understanding of basic biology and can be enhanced only through the ongoing novel discoveries. More importantly, the extent of "uncertainty" (inherent with the default assumptions associated with the NOAEL or benchmark approach) reducible by BBDR modeling requires further scrutiny and comparison. JF - Regulatory toxicology and pharmacology : RTP AU - Lau, C AU - Andersen, M E AU - Crawford-Brown, D J AU - Kavlock, R J AU - Kimmel, C A AU - Knudsen, T B AU - Muneoka, K AU - Rogers, J M AU - Setzer, R W AU - Smith, G AU - Tyl, R Y1 - 2000/04// PY - 2000 DA - April 2000 SP - 190 EP - 199 VL - 31 IS - 2 Pt 1 KW - Teratogens KW - 0 KW - Fluorouracil KW - U3P01618RT KW - Index Medicus KW - United States KW - Animals KW - Education KW - United States Environmental Protection Agency KW - No-Observed-Adverse-Effect Level KW - Dose-Response Relationship, Drug KW - Humans KW - Risk Assessment -- methods KW - Teratogens -- pharmacokinetics KW - Fluorouracil -- toxicity KW - Teratogens -- toxicity KW - Abnormalities, Drug-Induced -- etiology KW - Fluorouracil -- pharmacokinetics KW - Models, Biological UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71183544?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Regulatory+toxicology+and+pharmacology+%3A+RTP&rft.atitle=Evaluation+of+biologically+based+dose-response+modeling+for+developmental+toxicity%3A+a+workshop+report.&rft.au=Lau%2C+C%3BAndersen%2C+M+E%3BCrawford-Brown%2C+D+J%3BKavlock%2C+R+J%3BKimmel%2C+C+A%3BKnudsen%2C+T+B%3BMuneoka%2C+K%3BRogers%2C+J+M%3BSetzer%2C+R+W%3BSmith%2C+G%3BTyl%2C+R&rft.aulast=Lau&rft.aufirst=C&rft.date=2000-04-01&rft.volume=31&rft.issue=2+Pt+1&rft.spage=190&rft.isbn=&rft.btitle=&rft.title=Regulatory+toxicology+and+pharmacology+%3A+RTP&rft.issn=02732300&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-08-17 N1 - Date created - 2000-08-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - In utero and lactational exposure to 2,3,7,8-tetrachlorodibenzo-p-dioxin alters postnatal development of seminal vesicle epithelium. AN - 71038494; 10774825 AB - 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) has been shown to alter male reproductive development of laboratory animals through in utero and lactational exposure. As a result of exposure, the accessory glands of the male reproductive tract, including the seminal vesicle, are decreased in size as determined by total weight of the tissue. Analysis of seminal vesicle weights over time suggests that the changes may be transient. Administration of 1.0 microg/kg TCDD during gestation caused a significant decrease in seminal vesicle weights of offspring 8-11 months of age. We examined the effects of TCDD on seminal vesicles from rats exposed in utero and lactationally. Pregnant Long Evans rats were gavaged on gestation day 15 with 1.0 microg/kg TCDD in corn oil. Male pups were euthanized and necropsied on postnatal days (PND) 15, 25, 32, 49, 63, and 120. Seminal vesicles were weighed and then fixed in 10% neutral buffered formalin and processed for microscopic examination. Seminal vesicle weights were not significantly decreased until PND 32. Androgen receptor mRNA expression in PND 25 seminal vesicles was not different from control. In the present study, TCDD exposure decreased seminal vesicle epithelial branching and differentiation. Control epithelial cells had tall columnar morphology with relatively abundant cytoplasm, whereas TCDD-treated cells had rounded nuclei and less cytoplasm. In addition, immunolocalization of proliferating nuclear antigen was confined to undifferentiated basal epithelial cells of controls but was found in both basal and luminal cells of the treated seminal vesicle. Results indicate that the TCDD-induced impaired growth of the rat seminal vesicles is associated with a dramatic decrease in the development of the epithelium. JF - Toxicological sciences : an official journal of the Society of Toxicology AU - Hamm, J T AU - Sparrow, B R AU - Wolf, D AU - Birnbaum, L S AD - Curriculum in Toxicology, University of North Carolina, Chapel Hill 27599, USA. hamm.jonathan@epamail.epa.gov Y1 - 2000/04// PY - 2000 DA - April 2000 SP - 424 EP - 430 VL - 54 IS - 2 SN - 1096-6080, 1096-6080 KW - DNA Primers KW - 0 KW - Environmental Pollutants KW - Polychlorinated Dibenzodioxins KW - RNA, Messenger KW - Receptors, Androgen KW - Index Medicus KW - Administration, Oral KW - Animals KW - Rats, Long-Evans KW - Receptors, Androgen -- genetics KW - Epithelium -- drug effects KW - Pregnancy KW - Rats KW - Animals, Newborn KW - Polymerase Chain Reaction KW - Epithelium -- growth & development KW - RNA, Messenger -- metabolism KW - Body Weight -- drug effects KW - Receptors, Androgen -- metabolism KW - Epithelium -- pathology KW - Female KW - Male KW - DNA Primers -- chemistry KW - Organ Size -- drug effects KW - Seminal Vesicles -- metabolism KW - Environmental Pollutants -- toxicity KW - Polychlorinated Dibenzodioxins -- toxicity KW - Seminal Vesicles -- growth & development KW - Seminal Vesicles -- drug effects KW - Seminal Vesicles -- pathology KW - Prenatal Exposure Delayed Effects KW - Lactation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71038494?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+sciences+%3A+an+official+journal+of+the+Society+of+Toxicology&rft.atitle=In+utero+and+lactational+exposure+to+2%2C3%2C7%2C8-tetrachlorodibenzo-p-dioxin+alters+postnatal+development+of+seminal+vesicle+epithelium.&rft.au=Hamm%2C+J+T%3BSparrow%2C+B+R%3BWolf%2C+D%3BBirnbaum%2C+L+S&rft.aulast=Hamm&rft.aufirst=J&rft.date=2000-04-01&rft.volume=54&rft.issue=2&rft.spage=424&rft.isbn=&rft.btitle=&rft.title=Toxicological+sciences+%3A+an+official+journal+of+the+Society+of+Toxicology&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-06 N1 - Date created - 2000-06-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effects of aerially applied fenthion on survival and reproduction of the panacea sand fiddler, Uca panacea, in laboratory habitats. AN - 70899881; 10667930 AB - Sand fiddler crabs, Uca panacea, were exposed in laboratory habitats to measured concentrations of ULV-grade fenthion via simulated aerial spray at 5% and 50% of field rate application of 6-12 mg fenthion/m(2) (0.05-0.10 lbs fenthion/acre). Two habitats served as controls, and two habitats served as replicates for each of the test exposures. The aerial application was repeated 12 times between July 7, 1997, and August 15, 1997, during the period of the most active larval production of the crabs. The resulting measured concentrations of fenthion at the surface and in the water were consistently lower than what the application rate would have suggested. Statistical analysis of total, daily larval counts showed a periodicity of approximately 14 days that did not appear to be affected by fenthion, at least at the 5% application rate, where a 15% reduction in larval production was noted by the end of the second hatching cycle and a 25% reduction by the end of the third. Larval production in the habitats exposed to the 50% application rate was reduced by 18% at the end of the first hatching cycle, 77% at the end of the second, and 100% at the end of the third hatching cycle. At the end of the third hatching cycle, adult crab mortality observed at the surface was 0%, 3%, and 20% for the control, 5%-, and 50%-exposure habitats, respectively. Three weeks after the final fenthion application, survival of adult crabs was 100% in the control habitats, 75% in the 5%-exposure habitats, and 3% in the 50%-exposure habitats. Survival of unfed first-stage zoeae released during the night following the sprays averaged 4.6 +/- 0.9, 3.7 +/- 0.9 and 1.7 +/- 0.6 days for control, 5%-, and 50%-exposure habitats, respectively. Forty-eight-hour LC-50s (nominal) for fenthion exposure of adult crabs submerged in water and for first-stage zoeae were 215 microg fenthion/L and 0.8 microg fenthion/L, respectively. JF - Archives of environmental contamination and toxicology AU - Schoor, W P AU - Middaugh, D P AU - Marcovich, D T AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Gulf Ecology Division, 1 Sabine Drive, Gulf Breeze, Florida 32561, USA. Y1 - 2000/04// PY - 2000 DA - April 2000 SP - 327 EP - 333 VL - 38 IS - 3 SN - 0090-4341, 0090-4341 KW - Insecticides KW - 0 KW - Water Pollutants, Chemical KW - Fenthion KW - BL0L45OVKT KW - Index Medicus KW - Animals KW - Larva KW - Lethal Dose 50 KW - Survival Analysis KW - Insecticides -- toxicity KW - Reproduction -- drug effects KW - Fenthion -- toxicity KW - Water Pollutants, Chemical -- toxicity KW - Brachyura -- physiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70899881?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+environmental+contamination+and+toxicology&rft.atitle=Effects+of+aerially+applied+fenthion+on+survival+and+reproduction+of+the+panacea+sand+fiddler%2C+Uca+panacea%2C+in+laboratory+habitats.&rft.au=Schoor%2C+W+P%3BMiddaugh%2C+D+P%3BMarcovich%2C+D+T&rft.aulast=Schoor&rft.aufirst=W&rft.date=2000-04-01&rft.volume=38&rft.issue=3&rft.spage=327&rft.isbn=&rft.btitle=&rft.title=Archives+of+environmental+contamination+and+toxicology&rft.issn=00904341&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-23 N1 - Date created - 2000-03-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Phototoxic evaluation of marine sediments collected from a PAH-contaminated site. AN - 70899802; 10667924 AB - The phototoxicity potential of PAH-contaminated field sediment was evaluated and compared to standard sediment toxicity test results. Marine sediments were collected from 30 sites along a presumed PAH sediment pollution gradient in Elliot Bay, WA. Standard 10-day acute and 28-day chronic sediment toxicity tests were conducted with the infaunal amphipods Rhepoxynius abronius and Leptocheirus plumulosus using mortality and the ability to rebury as endpoints. The survivors of these tests were then subjected to 1-h exposures to UV radiation with mortality and reburial again determined. The most highly toxic sediments identified in these experiments were evaluated further for toxicity and phototoxicity by serially diluting them with uncontaminated sediment and repeating the toxicity tests. Standard 10-day toxicity test results indicated that over 70% of the sites sampled in Elliot Bay exhibited measurable toxicity with nine sites being highly toxic to both species of amphipods. Results of standard 28-day chronic sediment toxicity tests were similar. In contrast, almost all of the sites were found to be highly phototoxic. Results indicated that exposure to UV increased toxicity five- to eightfold. This suggests that standard toxicity tests underestimate the potential ecological risk of PAH-contaminated sediments in animals exposed to sunlight. However, only when PAH contamination was between 0.05 and 1.0 toxic units would conducting a phototoxicity evaluation add information to that gained from conducting a standard sediment toxicity test alone. JF - Archives of environmental contamination and toxicology AU - Boese, B L AU - Ozretich, R J AU - Lamberson, J O AU - Cole, F A AU - Swartz, R C AU - Ferraro, S P AD - Coastal Ecology Branch, Western Ecology Division, U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Hatfield Marine Science Center, 2111 SE Marine Science Dr., Newport, Oregon 97365-5260, USA. Y1 - 2000/04// PY - 2000 DA - April 2000 SP - 274 EP - 282 VL - 38 IS - 3 SN - 0090-4341, 0090-4341 KW - Polycyclic Aromatic Hydrocarbons KW - 0 KW - Index Medicus KW - Animals KW - Dose-Response Relationship, Drug KW - Crustacea KW - Biological Assay KW - Polycyclic Aromatic Hydrocarbons -- toxicity KW - Geologic Sediments -- chemistry KW - Ultraviolet Rays -- adverse effects KW - Polycyclic Aromatic Hydrocarbons -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70899802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+environmental+contamination+and+toxicology&rft.atitle=Phototoxic+evaluation+of+marine+sediments+collected+from+a+PAH-contaminated+site.&rft.au=Boese%2C+B+L%3BOzretich%2C+R+J%3BLamberson%2C+J+O%3BCole%2C+F+A%3BSwartz%2C+R+C%3BFerraro%2C+S+P&rft.aulast=Boese&rft.aufirst=B&rft.date=2000-04-01&rft.volume=38&rft.issue=3&rft.spage=274&rft.isbn=&rft.btitle=&rft.title=Archives+of+environmental+contamination+and+toxicology&rft.issn=00904341&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-23 N1 - Date created - 2000-03-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Gestational exposure to methylmercury alters neurotrophin- and carbachol-stimulated phosphatidylinositide hydrolysis in cerebral cortex of neonatal rats. AN - 70545576; 12835095 AB - Neurotrophin-stimulated signal transduction through the Trk receptors has been implicated in the development and survival of the nervous system. Phospholipase Cgamma (PLCgamma) is an early downstream effector for the Trk receptors, and catalyzes the hydrolysis of phosphatidylinositides (PI) to inositol phosphates (IPs) and diacylglycerol. The current study demonstrated that PI hydrolysis can be used as a measure of Trk stimulation in slices from neonatal rat brain, and examined changes in the ontogeny of neurotrophin-stimulated PI hydrolysis in animals exposed to MeHg during gestation. Neurotrophin-3 (NT-3) and brain-derived neurotrophic factor (BDNF) stimulated PI hydrolysis in neocortical and cerebellar slices from neonatal rats in a concentration-dependent manner (30-1000 ng/ml). The neurotrophin-stimulated PI hydrolysis was completely blocked by K-252a, a compound known to inhibit Trk autophosphorylation. To examine the effects of MeHg on PI hydrolysis, Long-Evans dams were dosed p.o. on gestational days 6-15 with 0 or 2 mg/kg/day MeHg dissolved in saline. Pups were sacrificed on postnatal days (PND) 1, 4, 10, 14, and 21 and brain slices prepared from the neocortex and cerebellum. Neurotrophin-stimulated PI hydrolysis was highest on PND 1-4 and decreased with age in slices from both regions. Prior exposure to MeHg had no effect on NT-3 or BDNF-stimulated PI hydrolysis in the cerebellum; however, in the neocortex carbachol-stimulated PI hydrolysis and NT-3-stimulated PI hydrolysis were decreased on PND 1. In addition, NT-3-stimulated PI hydrolysis was increased on PND 14 compared to controls. Nerve growth factor (NGF), which had no effect in controls, increased PI hydrolysis in MeHg exposed animals. Acute exposure to 10 micro M MeHg increased basal PI hydrolysis in cortical slices and increased NT-3- and BDNF-stimulated PI hydrolysis in slices from the cerebellum. These data indicate that gestational exposure to MeHg can alter neurotrophin signaling in the neocortex at early postnatal times. JF - Neurotoxicity research AU - Mundy, W M AU - Parran, D AU - Barone, S AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA. mundy.william@epamail.epa.gov Y1 - 2000/04// PY - 2000 DA - April 2000 SP - 271 EP - 283 VL - 1 IS - 4 SN - 1029-8428, 1029-8428 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70545576?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Neurotoxicity+research&rft.atitle=Gestational+exposure+to+methylmercury+alters+neurotrophin-+and+carbachol-stimulated+phosphatidylinositide+hydrolysis+in+cerebral+cortex+of+neonatal+rats.&rft.au=Mundy%2C+W+M%3BParran%2C+D%3BBarone%2C+S&rft.aulast=Mundy&rft.aufirst=W&rft.date=2000-04-01&rft.volume=1&rft.issue=4&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Neurotoxicity+research&rft.issn=10298428&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-11-12 N1 - Date created - 2003-07-01 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Generating high quality impervious cover data. AN - 70517807; 11797825 AB - Nonpoint source pollution (NPS) from urban or suburban areas is rapidly increasing as the population increases in the United States. Research in recent years has consistently shown a strong relationship between the percentage of impervious cover in a drainage basin and the health of the receiving stream. In this paper, we quantify the amount of impervious cover within 56 14-digit hydrologic unit codes (HUCs) in Frederick County, Maryland, USA. This test data set will help in the development of region-wide impervious cover estimation methodologies. The software, sampling and analysis systems were developed to yield accurate and reproducible results. Digital orthophoto quarter quadrangles (DOQQ) from the U.S. Geological Survey were chosen as the basic media for the analysis. Ground features were identified and categorized by human analysts with the help of Geographic Information System (GIS) software and a prototype "cover tool" extension. JF - Quality assurance (San Diego, Calif.) AU - Bird, S L AU - Exum, L R AU - Alberty, S W AD - US Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, Ecosystems Research Division, Athens, Georgia 30605-2700, USA. bird.sandra@epa.gov PY - 2000 SP - 91 EP - 103 VL - 8 IS - 2 SN - 1052-9411, 1052-9411 KW - Index Medicus KW - Software KW - Data Collection -- methods KW - Humans KW - Maryland KW - Quality Control KW - Water Pollution -- analysis KW - Water Pollution -- prevention & control KW - Sanitary Engineering KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70517807?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quality+assurance+%28San+Diego%2C+Calif.%29&rft.atitle=Generating+high+quality+impervious+cover+data.&rft.au=Bird%2C+S+L%3BExum%2C+L+R%3BAlberty%2C+S+W&rft.aulast=Bird&rft.aufirst=S&rft.date=2000-04-01&rft.volume=8&rft.issue=2&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=Quality+assurance+%28San+Diego%2C+Calif.%29&rft.issn=10529411&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-06-07 N1 - Date created - 2002-01-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Selective removal of organic contaminants from sediments; a methodology for toxicity identification evaluations (TIEs) AN - 52257986; 2001-019326 JF - Chemosphere (Oxford) AU - Lebo, J A AU - Huckins, J N AU - Petty, J D AU - Ho, K T AU - Stern, E A Y1 - 2000/04// PY - 2000 DA - April 2000 SP - 811 EP - 819 PB - Pergamon, Oxford VL - 40 IS - 8 SN - 0045-6535, 0045-6535 KW - chlorinated hydrocarbons KW - experimental studies KW - fatty acids KW - lipids KW - pollutants KW - DDE KW - pollution KW - techniques KW - polyethylene KW - bioavailability KW - environmental analysis KW - remediation KW - laboratory studies KW - organic compounds KW - organic acids KW - toxicity KW - decontamination KW - sediments KW - halogenated hydrocarbons KW - efficiency KW - aquatic environment KW - hydrophobic materials KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52257986?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=Selective+removal+of+organic+contaminants+from+sediments%3B+a+methodology+for+toxicity+identification+evaluations+%28TIEs%29&rft.au=Lebo%2C+J+A%3BHuckins%2C+J+N%3BPetty%2C+J+D%3BHo%2C+K+T%3BStern%2C+E+A&rft.aulast=Lebo&rft.aufirst=J&rft.date=2000-04-01&rft.volume=40&rft.issue=8&rft.spage=811&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 8 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - aquatic environment; bioavailability; chlorinated hydrocarbons; DDE; decontamination; efficiency; environmental analysis; experimental studies; fatty acids; halogenated hydrocarbons; hydrophobic materials; laboratory studies; lipids; organic acids; organic compounds; pollutants; pollution; polyethylene; remediation; sediments; techniques; toxicity ER - TY - JOUR T1 - Effects of land cover change on streamflow in the interior Columbia River basin (USA and Canada) AN - 52256128; 2001-022553 JF - Hydrological Processes AU - Matheuseen, Bernt AU - Kirschbaum, Robin L AU - Goodman, Iris A AU - O'Donnell, Greg M AU - Lettenmaier, Dennis P Y1 - 2000/04// PY - 2000 DA - April 2000 SP - 867 EP - 885 PB - John Wiley & Sons Ltd., New York, NY VL - 14 IS - 5 SN - 0885-6087, 0885-6087 KW - United States KW - land cover KW - watersheds KW - effects KW - atmospheric precipitation KW - evapotranspiration KW - models KW - Canada KW - streamflow KW - Columbia River basin KW - snow KW - runoff KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52256128?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=Effects+of+land+cover+change+on+streamflow+in+the+interior+Columbia+River+basin+%28USA+and+Canada%29&rft.au=Matheuseen%2C+Bernt%3BKirschbaum%2C+Robin+L%3BGoodman%2C+Iris+A%3BO%27Donnell%2C+Greg+M%3BLettenmaier%2C+Dennis+P&rft.aulast=Matheuseen&rft.aufirst=Bernt&rft.date=2000-04-01&rft.volume=14&rft.issue=5&rft.spage=867&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/ L2 - http://www3.interscience.wiley.com/cgi-bin/jhome/4125 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 42 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; Canada; Columbia River basin; effects; evapotranspiration; land cover; models; runoff; snow; streamflow; United States; watersheds ER - TY - JOUR T1 - Polychlorinated dibenzo-p-dioxin and polychlorinated dibenzofuran contamination in soil and home-produced chicken eggs near pentachlorophenol sources AN - 52249154; 2001-028010 JF - Environmental Science & Technology, ES & T AU - Harnly, Martha E AU - Petreas, Myrto X AU - Flattery, Jennifer AU - Goldman, Lynn R Y1 - 2000/04// PY - 2000 DA - April 2000 SP - 1143 EP - 1149 PB - American Chemical Society, Washington, DC VL - 34 IS - 7 SN - 0013-936X, 0013-936X KW - United States KW - soils KW - concentration KW - toxic materials KW - monitoring KW - pollutants KW - pollution KW - pentachlorophenol KW - dioxins KW - chlorophenols KW - PCDD/PCDF KW - environmental analysis KW - Oroville California KW - bioaccumulation KW - California KW - polychlorinated dibenzofurans KW - organic compounds KW - detection KW - toxicity KW - Butte County California KW - polychlorinated dibenzo-p-dioxins KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52249154?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Polychlorinated+dibenzo-p-dioxin+and+polychlorinated+dibenzofuran+contamination+in+soil+and+home-produced+chicken+eggs+near+pentachlorophenol+sources&rft.au=Harnly%2C+Martha+E%3BPetreas%2C+Myrto+X%3BFlattery%2C+Jennifer%3BGoldman%2C+Lynn+R&rft.aulast=Harnly&rft.aufirst=Martha&rft.date=2000-04-01&rft.volume=34&rft.issue=7&rft.spage=1143&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - bioaccumulation; Butte County California; California; chlorophenols; concentration; detection; dioxins; environmental analysis; monitoring; organic compounds; Oroville California; PCDD/PCDF; pentachlorophenol; pollutants; pollution; polychlorinated dibenzo-p-dioxins; polychlorinated dibenzofurans; soils; toxic materials; toxicity; United States ER - TY - JOUR T1 - Effects of the mammalian antiandrogen vinclozolin on development and reproduction of the fathead minnow (Pimephales promelas). AN - 1859318131; 10794831 AB - Previous work with the chlorinated fungicide vinclozolin and its metabolites, 2-{[(3,5-dichlorophenyl)-carbamoyl]oxy}-2-methyl-3-butenoic acid (M1) and 3',5'-dichloro-2-hydroxy-2-methylbut-3-enanilide (M2), indicated antiandrogenic properties expressed in vivo as abnormalities in sexual differentiation of male rats after maternal exposures. In this study, we attempted to determine whether vinclozolin might also exhibit antiandrogenic properties in a model fish species, the fathead minnow, Pimephales promelas. In one study, embryonic (<6 h old) fathead minnows were exposed for approximately 34 days to five toxicant concentrations, ranging from 90 to 1200 µg l(-1), delivered via a flow-through diluter. The embryos were periodically sampled to determine survival, growth and gross pathology, and then placed in clean water for 4-6 months to assess long-term effects on sexual differentiation and subsequent reproductive success. Except for slightly reduced growth after 34 days in the highest vinclozolin concentration, no adverse effects were noted with respect to any of these endpoints. In a second experiment, adult fathead minnows were exposed to vinclozolin concentrations of approximately 200 or 700 µg l(-1) for 21 days, following which, gonadal morphology was assessed and serum sex steroid concentrations determined. Tissue samples from the exposed adults were assayed for vinclozolin and its metabolites. There was a slight increase in the serum beta-estradiol concentration of the male fathead minnows exposed to 700 µg vinclozolin l(-1), and a marked reduction in gonadal condition of female fish from this treatment. The possibility that vinclozolin and its metabolites would bind to androgen receptors in the fathead minnow was investigated through competitive radioligand binding studies. Vinclozolin, M1 and M2 failed to compete for high-affinity, low-capacity testosterone binding sites in fathead minnow brain and ovary cytosolic fractions, suggesting that these chemicals might not act as antiandrogens in the fathead minnow. More experimentation is necessary to determine whether responses observed in vivo might be due to the effects of vinclozolin (or its metabolites) on some other aspect of endocrine function. JF - Aquatic toxicology (Amsterdam, Netherlands) AU - Makynen AU - Kahl AU - Jensen AU - Tietge AU - Wells AU - Van Der Kraak G AU - Ankley AD - US Environmental Protection Agency, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN, USA Y1 - 2000/04/01/ PY - 2000 DA - 2000 Apr 01 SP - 461 EP - 475 VL - 48 IS - 4 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859318131?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+toxicology+%28Amsterdam%2C+Netherlands%29&rft.atitle=Effects+of+the+mammalian+antiandrogen+vinclozolin+on+development+and+reproduction+of+the+fathead+minnow+%28Pimephales+promelas%29.&rft.au=Makynen%3BKahl%3BJensen%3BTietge%3BWells%3BVan+Der+Kraak+G%3BAnkley&rft.aulast=Makynen&rft.aufirst=&rft.date=2000-04-01&rft.volume=48&rft.issue=4&rft.spage=461&rft.isbn=&rft.btitle=&rft.title=Aquatic+toxicology+%28Amsterdam%2C+Netherlands%29&rft.issn=1879-1514&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2000-05-04 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - EMAP-Surface Waters: a multiassemblage, probability survey of ecological integrity in the U.S.A. AN - 18395637; 5372308 AB - Data analyzed at national, multistate or state scales often reveal more serious deterioration of various biological assemblages than that suspected from site specific studies simply because the impacts are observed regionally rather than locally. Unfortunately many regional assessments are based on data collected with differing sampling designs and methods, making their representativeness, accuracy and precision questionable. In 1989, the United States Environmental Protection Agency (USEPA) began EMAP-Surface Waters (EMAP-SW), a program for developing methods to monitor and assess status and trends in the nation's lakes and rivers in a statistically and ecologically rigorous manner. EMAP-SW has now conducted regional multistate pilots in streams and rivers throughout the U.S.A. in collaboration with State agencies, universities and EPA regional offices. We discuss EMAP's conceptual design, which focuses on biological integrity through use of multiple biological assemblages and includes physical and chemical habitat and landscape characteristics. When coupled with appropriate biological indicators, a probability-based design enabled us to provide accurate, precise and unbiased assessments of biological conditions, along with quantitative estimates of sampling uncertainty. Regional EMAP-SW surveys indicated the importance of assessing multiple biological assemblages because each assemblage was differentially sensitive to different stressors and at different spatial scales. Synthesizing multiple metrics from multiple assemblages allowed us to detect the effects of multiple anthropogenic disturbances. We also illustrate the value of using historical reconstruction and paleolimnological data for determining reference conditions where disturbance is extensive. We conclude that an EMAP approach to sampling design and indicators (recognizing natural ecoregional differences) has distinct advantages for monitoring and assessments that may be applicable to European Communities seeking to assess the ecological integrity of waters. JF - Hydrobiologia AU - Hughes, R M AU - Paulsen, S G AU - Stoddard, J L AD - Dynamac, 200 SW 35th St., Corvallis, Oreg., USA, hughesb@mail.cor.epa.gov Y1 - 2000/04/01/ PY - 2000 DA - 2000 Apr 01 SP - 429 EP - 443 VL - 422/423 SN - 0018-8158, 0018-8158 KW - EMAP-SW KW - Ecology Abstracts; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Q5 01522:Protective measures and control KW - P 9000:ENVIRONMENTAL ACTION KW - D 04001:Methodology - general KW - Q1 01463:Habitat community studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18395637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrobiologia&rft.atitle=EMAP-Surface+Waters%3A+a+multiassemblage%2C+probability+survey+of+ecological+integrity+in+the+U.S.A.&rft.au=Hughes%2C+R+M%3BPaulsen%2C+S+G%3BStoddard%2C+J+L&rft.aulast=Hughes&rft.aufirst=R&rft.date=2000-04-01&rft.volume=422%2F423&rft.issue=&rft.spage=429&rft.isbn=&rft.btitle=&rft.title=Hydrobiologia&rft.issn=00188158&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Theme: Assessing the Ecological Integrity of Running Waters. N1 - Last updated - 2011-12-13 ER - TY - CONF T1 - The Endocrine Disruptor Screening Program Developed by the U.S. Environmental Protection Agency AN - 17741499; 4795864 AB - The Food Quality Protection Act (FQPA) was signed into law on 3 August 1996. FQPA amended both laws under which the Environmental Protection Agency manages the regulatory process for pesticide registration and use in the United States. Many new requirements were incorporated into these two laws, including the development of "a screening program, using appropriate validated test systems and other scientifically relevant information, to determine whether certain substances may have an effect in humans that is similar to an effect produced by a naturally occurring estrogen, or such other endocrine effect...." "Certain substances" includes all pesticides (both active and other ingredients of pesticide formulations) as well as "any other substance that may have an effect cumulative to an effect of a pesticide chemical if...a substantial population may be exposed to such substance." With the assistance of an advisory committee made up of 40 members representing several other agencies of the Federal government, States, chemical manufacturers and users, public interest groups, and the public health and academic communities, EPA has developed, and is currently implementing, such a screening program. The initial program, as proposed, consists of two tiers, a screening tier containing eight assays, and a testing tier, containing five multigeneration tests. The screening battery is designed to determine whether or not the agent being evaluated has the potential to interact not only with the estrogen-hormone system, but also the androgen- and thyroid-hormone systems, as well. The testing tier is designed to provide definitive characterization of an agent's inherent ability to disrupt one or more of the three hormone systems. This presentation will describe, in detail, the status of development and validation of each component of the proposed screening program, including possible alternatives; the universe of chemical agents that are candidates for inclusion in the program, the priority-setting process to be used for chemical selection and the relationship between EPA's program and the OECD effort to develop a program for use by its member countries. JF - Ecotoxicology AU - Fenner-Crisp, P A AU - Maciorowski, A F AU - Timm, GE Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 85 EP - 91 PB - Kluwer Academic Publishers, Postbus 17 Dordrecht 3300 AA Netherlands VL - 9 IS - 1-2 KW - endocrine disruptors KW - Food Quality Protection Act KW - USA, Environmental Protection Agency KW - estrogens KW - Pollution Abstracts; Toxicology Abstracts; Health & Safety Science Abstracts KW - Government policy KW - Xenobiotics KW - Hormones KW - Endocrine system KW - Toxicology KW - Government programs KW - Food contamination KW - Screening projects KW - EPA KW - Pesticides KW - Legislation KW - X 24230:Legislation & recommended standards KW - P 9000:ENVIRONMENTAL ACTION KW - H 5000:Pesticides UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17741499?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecotoxicology&rft.atitle=The+Endocrine+Disruptor+Screening+Program+Developed+by+the+U.S.+Environmental+Protection+Agency&rft.au=Fenner-Crisp%2C+P+A%3BMaciorowski%2C+A+F%3BTimm%2C+GE&rft.aulast=Fenner-Crisp&rft.aufirst=P&rft.date=2000-04-01&rft.volume=9&rft.issue=1-2&rft.spage=85&rft.isbn=&rft.btitle=&rft.title=Ecotoxicology&rft.issn=09639292&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Predicting Fenton-driven degradation using contaminant analog AN - 17671108; 4714768 AB - The reaction of hydrogen peroxide (H sub(2)O sub(2)) and Fe(II) (Fenton's reaction) generates hydroxyl radicals ( times OH) that can be used to oxidize contaminants in soils and aquifers. In such environments, several factors can limit the effectiveness of chemical oxidation, including reactions involving H sub(2)O sub(2) that do not yield times OH, times OH reactions with nontargeted chemicals, and insufficient iron in the soil or aquifer. Consequently, site-specific studies may be necessary to evaluate the feasibility of chemical oxidation using H sub(2)O sub(2). Here, the degradation of a contaminant analog, alpha -(4-pyridyl-1-oxide) N-tert-butylnitrone (4POBN), was used to estimate times OH concentration and simplify testing procedures. A kinetic model was developed, calibrated using 4POBN degradation kinetics, and used to predict the disappearance of 2-chlorophenol (2CP), a representative target. Good agreement between predicted (Y) and measured (X) values for 2CP (Y = 0.95X) suggests that the kinetics of analog degradation can be used to predict the degradation rate of compounds for which the rate constant for reaction with times OH is known. JF - Journal of Environmental Engineering AU - Huling, S G AU - Arnold, R G AU - Jones, P K AU - Sierka, R A AD - U.S. Envir. Protection Agency, Nat. Risk Mgmt. and Res. Lab., P.O. BOX 1198, Ada, OK 74820, USA, Huling.Scott@EPA.GOV Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 348 EP - 353 VL - 126 IS - 4 SN - 0733-9372, 0733-9372 KW - 2-chlorophenol KW - Fenton's reagent KW - hydrogen peroxide KW - Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Prediction KW - Hydroxyl Radical KW - Aquifers KW - Chemical degradation KW - Degradation KW - Decontamination KW - Chemical treatment KW - Decomposition KW - Model Studies KW - Hydroxyl radicals KW - Feasibility Studies KW - Calibrations KW - Water treatment KW - Kinetics KW - Oxidation KW - Hydroxyl KW - Chemical Treatment KW - AQ 00006:Sewage KW - SW 3040:Wastewater treatment processes KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17671108?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Engineering&rft.atitle=Predicting+Fenton-driven+degradation+using+contaminant+analog&rft.au=Huling%2C+S+G%3BArnold%2C+R+G%3BJones%2C+P+K%3BSierka%2C+R+A&rft.aulast=Huling&rft.aufirst=S&rft.date=2000-04-01&rft.volume=126&rft.issue=4&rft.spage=348&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Engineering&rft.issn=07339372&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Aquifers; Chemical degradation; Water treatment; Oxidation; Decontamination; Hydroxyl radicals; Kinetics; Chemical treatment; Hydroxyl; Decomposition; Fenton's reagent; Hydroxyl Radical; Prediction; Feasibility Studies; Calibrations; Degradation; Model Studies; Chemical Treatment ER - TY - JOUR T1 - Use of the MIDI-FAME technique to characterize groundwater communities AN - 17667646; 4753716 AB - Fatty acid methyl ester (FAME) profiles were identified directly from groundwater microbial communities concentrated on and extracted with polycarbonate filters. The sensitivity of this direct extraction method was determined using pure cultures of Acinetobacter junii, Pseudomonas putida and Stenotrophomonas maltophilia. A minimum concentration of 10 super(7) cells filter super(-1) was required to identify the predominant fatty acids from each culture. However, at least 3.7 x 10 super(9) cells filter super(-1) were required to obtain fatty acid profiles that matched the signature profiles for pure cultures in a commercial database. While several saturated fatty acids (i.e. 14 : 0, 16 : 0, 18 : 0) were extracted from the polycarbonate filters, they were readily subtracted from microbial fatty acid profiles and did not interfere with the characterization of pure cultures or environmental samples. For the environmental samples, 3 l of groundwater from the Savannah River Site, Aiken, SC, (USA) contained sufficient biomass for direct extraction. A comparative analysis of FAME groundwater profiles demonstrated a qualitative difference among communities sampled from spatially discrete locations, while a groundwater well that was sampled at two time points showed strong similarities over time. Concentration of microbial biomass on polycarbonate filters coupled with the MIDI-FAME extraction of both biomass and filter was a useful technique to characterize microbial communities from groundwater. JF - Journal of Applied Microbiology AU - Glucksman, A AU - Skipper, H AU - Brigmon, R AU - Domingo, S J AD - CSRA Analytical Laboratories, Inc., Augusta, GA, Department of Agronomy, Clemson University, Clemson, SC, Environmental Biotechnology Section, Westinghouse Savannah River Company, Aiken, SC and NERL/MCEARD, US Environmental Protection Agency, Cincinnati, OH, USA Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 711 EP - 719 PB - Blackwell Science Ltd VL - 88 IS - 4 SN - 1364-5072, 1364-5072 KW - MIDI-FAME KW - USA, South Carolina KW - fatty acid methyl ester KW - microbes KW - polycarbonate filters KW - Water Resources Abstracts; Microbiology Abstracts B: Bacteriology KW - Filters KW - Microorganisms KW - Ground water KW - Pseudomonas putida KW - Stenotrophomonas maltophilia KW - Groundwater KW - Biomass KW - Acinetobacter junii KW - Methodology KW - SW 0840:Groundwater KW - J 02905:Water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17667646?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Microbiology&rft.atitle=Use+of+the+MIDI-FAME+technique+to+characterize+groundwater+communities&rft.au=Glucksman%2C+A%3BSkipper%2C+H%3BBrigmon%2C+R%3BDomingo%2C+S+J&rft.aulast=Glucksman&rft.aufirst=A&rft.date=2000-04-01&rft.volume=88&rft.issue=4&rft.spage=711&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Microbiology&rft.issn=13645072&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Ground water; Methodology; Filters; Microorganisms; Biomass; Groundwater; Pseudomonas putida; Stenotrophomonas maltophilia; Acinetobacter junii ER - TY - JOUR T1 - Cleaning up pesticide contaminated soils: Comparing effectiveness of supercritical fluid extraction with solvent extraction and low temperature thermal desorption AN - 17659294; 4720706 AB - Bench-scale supercritical fluid extraction (SFE) studies were performed on soil samples obtained from a Superfund site that is contaminated with high levels of p,p'-DDT, p,p'-DDD, p,p'-DDE, toxaphene and hexachlorocyclohexane. The effectiveness of supercritical fluid extraction was assessed using pure and modified CO sub(2) as a solvent over a wide range of conditions. A 30-minute extraction at 30 MPa and 80 degree C was able to remove more than 98% of the contaminants and reduce the contaminated volume by a factor of 500. Solvent extraction and thermal desorption treatability studies were conducted on soil samples obtained from the same site to compare their performance with that of supercritical fluid extraction. A six-stage solvent extraction using methanol achieved 96 to 98% removal of the four contaminants, except for DDE which existed at low initial concentrations. The contaminated volume reduction was 40 to 50 times. Low temperature thermal desorption employed at 350 degree C for 30 minutes removed more than 98% for each contaminant except DDE. However, solvent extraction includes costly solvent regeneration and recycling steps, and thermal desorption generates air pollutants that require expensive particulate removal and gas stream cleaning. This study attempted to show that SFE can be as effective as other emerging technologies in removing contaminants from soils, and can reduce the contaminated volume by a large factor. JF - Environmental Technology AU - Sahle-Demessie, E AU - Richardson, T AD - U S Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, 26 W. Martin Luther King Dr. Cincinnati, OH 45268, USA Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 447 EP - 456 VL - 21 IS - 4 SN - 0959-3330, 0959-3330 KW - methanol KW - supercritical fluid extraction KW - Pollution Abstracts KW - Soil remediation KW - Pollutant removal KW - Desorption KW - Solvent extraction KW - Superfund KW - DDE KW - Decontamination KW - DDT KW - Pesticides KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17659294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Technology&rft.atitle=Cleaning+up+pesticide+contaminated+soils%3A+Comparing+effectiveness+of+supercritical+fluid+extraction+with+solvent+extraction+and+low+temperature+thermal+desorption&rft.au=Sahle-Demessie%2C+E%3BRichardson%2C+T&rft.aulast=Sahle-Demessie&rft.aufirst=E&rft.date=2000-04-01&rft.volume=21&rft.issue=4&rft.spage=447&rft.isbn=&rft.btitle=&rft.title=Environmental+Technology&rft.issn=09593330&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Soil remediation; Pesticides; Solvent extraction; Desorption; Superfund; Decontamination; Pollutant removal; DDT; DDE ER - TY - JOUR T1 - An investigation on volatile organic compounds in ground water at industrial waste dump sites AN - 17642531; 4798950 AB - Objectives: This research was conducted to investigate the contamination of volatile organic compounds (VOCs) in the ground water obtained from wells near illegal dump sites of industrial wastes. Methods: Samples were obtained from 344 wells located within one kilometer in distance from 53 dumping sites identified in 3 counties and cities. The depth of wells and the temperature of samples were measured at the sampling sites and collected using closed containers. VOCs were analyzed at the Environmental Protection Administration Laboratory by purge and trap pretreatment capillary column gas chromatography equipped with photoionization and electrolytic conductivity detectors in series. Results: Among 344 wells, 7 VOCs were quantitated in samples from 69 wells(20.1%). These contaminants included: total trihalomethane(0.43 similar to 24.88 mu g/L,averaged 1.93 mu g/L) in 42 samples, 1,1,1-trichloroethane(0.41 similar to 4.03 mu g/L, averaged 1.05 mu g/L) in 28 samples, 1,1-dichloroethene(0.88 similar to 12.18 mu g/L, averaged 2.71 mu g/L) in 15 samples, vinyl chloride(0.47 similar to 0.66 mu g/L, averaged 0.53 mu g/L) in 8 samples, trichloroethene(0.52 similar to 3.45 mu g/L, averaged 1.51 mu g/L) in 3 samples, carbon tetrachloride( 0.43 similar to 1.54 mu g/L, averaged 0.69 mu g/L) in 3 samples, and 1,2-dichloroethane(1.18 and 1.28 mu g/L, averaged 1.23 mu g/L) in 2 samples. Four VOCs have been identified for few samples. The total VOCs concentrations ranged from 1.0 to 5.0 mu g/L for most samples. The concentrations of 1,1-dichloroethene for one sample(12.18 mu g/L)obtained in Kaoshiung and for two samples(7.15 mu g/L,7.46 mu g/L)obtained in Pingtung were above the government drinking water quality standard. Other pollutants were below the government drinking water quality standard. Conclusions: Improperly dumped waste may contaminate well water. Although contaminated chemicals in well water were not all in high concentrations, it remains a better policy for residents to drink boiled water. JF - Chinese Journal of Public Health AU - Wang, C-H AU - Chen, L-S AU - Cheng, T-Y AU - Fu, C-Y AD - National Institute of Environmental Analysis,Environmental Protection Administration Government of the Republic of China, No.260, Sec 3, Ming Tsu Rd., Chung Li City, Taoyuan County, Taiwan 320, R.O.C, cswang@adm.epa.gov.tw Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 119 EP - 129 VL - 19 IS - 2 SN - 1023-2141, 1023-2141 KW - China KW - Pollution Abstracts; Health & Safety Science Abstracts KW - Public health KW - Waste disposal sites KW - Water quality standards KW - Water wells KW - Groundwater pollution KW - Drinking water KW - Volatile organic compounds KW - H 3000:Environment and Ecology KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17642531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chinese+Journal+of+Public+Health&rft.atitle=An+investigation+on+volatile+organic+compounds+in+ground+water+at+industrial+waste+dump+sites&rft.au=Wang%2C+C-H%3BChen%2C+L-S%3BCheng%2C+T-Y%3BFu%2C+C-Y&rft.aulast=Wang&rft.aufirst=C-H&rft.date=2000-04-01&rft.volume=19&rft.issue=2&rft.spage=119&rft.isbn=&rft.btitle=&rft.title=Chinese+Journal+of+Public+Health&rft.issn=10232141&rft_id=info:doi/ LA - Chinese DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Waste disposal sites; Volatile organic compounds; Water quality standards; Drinking water; Public health; Groundwater pollution; Water wells ER - TY - JOUR T1 - Development of a toxicity identification evaluation procedure for characterizing metal toxicity in marine sediments AN - 17597368; 4703277 AB - A multiagency effort is underway to develop whole sediment toxicity identification evaluation (TIE) methods. Whole sediment TIE methods will be critical tools for characterizing toxicity at hazardous waste sites (e.g., Superfund sites) and in the conduct of environmental risk assessments. The research approach is based on the predominance of three classes of toxicants in sediments: ammonia, nonpolar organic chemicals, and metals. Here we describe a procedure for characterizing acute toxicity caused by metals in whole marine sediments. The procedure involves adding a chelating resin to sediments, resulting in the sequestration of bioavailable metal while not stressing testing organisms. Within the testing chambers, the presence of resin resulted in statistically significant reductions in the overlying and interstitial water concentrations of five metals (cadmium, copper, nickel, lead, and zinc) generally by factors of 40 and 200. Toxicity to both the amphipod Ampelisca abdita and mysid Americamysis bahia (formerly Mysidopsis bahia) of sediments spiked with the five metals was decreased by approximately a factor of four when resin was present. While very effective at reducing the concentrations and toxicity of metals, the resin has only minor ameliorative effects on the toxicity of ammonia and a representative nonpolar toxicant (Endosulfan). Resin and accumulated metal were easily isolated from the testing system following exposures allowing for the initiation of phase II TIE (identification) procedures. This procedure using the addition of a chelating resin provides an approach for determining the importance of metals to the toxicity of marine sediments. Work is continuing to validate the method with environmentally contaminated sediments. JF - Environmental Toxicology and Chemistry AU - Burgess, R M AU - Cantwell, M G AU - Pelletier, M C AU - Ho, K T AU - Serbst, J R AU - Cook, H F AU - Kuhn, A AD - U.S. Environmental Protection Agency, Office of Research and Development/National Health and Environmental Research Laboratory, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, Rhode Island 02882, USA, burgess.robert@epa.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 982 EP - 991 VL - 19 IS - 4 SN - 0730-7268, 0730-7268 KW - Americamysis bahia KW - Ampelisca abdita KW - Amphipoda KW - acute toxicity KW - mysids KW - toxicity identification evaluation KW - Water Resources Abstracts; Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Classification systems KW - Mysidopsis bahia KW - Heavy metals KW - Nickel KW - Copper KW - Chelating agents KW - Toxicity tests KW - Lead KW - Hazardous Materials KW - Ecotoxicology KW - Marine environment KW - Zinc KW - Sediment Contamination KW - Cadmium KW - Marine KW - Metals KW - Sediment pollution KW - Resins KW - Amphipods KW - Superfund KW - Ammonia KW - Heavy Metals KW - Endosulfan KW - Marine pollution KW - Acute Toxicity KW - Water Pollution Effects KW - Toxicity testing KW - Indicator species KW - P 1000:MARINE POLLUTION KW - SW 3030:Effects of pollution KW - Q5 08502:Methods and instruments KW - X 24221:Toxicity testing KW - P 6000:TOXICOLOGY AND HEALTH KW - X 24161:Acute exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17597368?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Development+of+a+toxicity+identification+evaluation+procedure+for+characterizing+metal+toxicity+in+marine+sediments&rft.au=Burgess%2C+R+M%3BCantwell%2C+M+G%3BPelletier%2C+M+C%3BHo%2C+K+T%3BSerbst%2C+J+R%3BCook%2C+H+F%3BKuhn%2C+A&rft.aulast=Burgess&rft.aufirst=R&rft.date=2000-04-01&rft.volume=19&rft.issue=4&rft.spage=982&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Classification systems; Sediment pollution; Ecotoxicology; Marine pollution; Toxicity tests; Indicator species; Metals; Resins; Heavy metals; Marine environment; Ammonia; Chelating agents; Toxicity testing; Endosulfan; Superfund; Hazardous Materials; Acute Toxicity; Amphipods; Water Pollution Effects; Zinc; Nickel; Sediment Contamination; Cadmium; Copper; Lead; Heavy Metals; Mysidopsis bahia; Marine ER - TY - JOUR T1 - Fathead minnow vitellogenin: Complementary DNA sequence and messenger RNA and protein expression after 17 beta -estradiol treatment AN - 17595594; 4703276 AB - Induction of vitellogenin (VTG) in oviparous animals has been proposed as a sensitive indicator of environmental contaminants that activate the estrogen receptor. In the present study, a sensitive ribonuclease protection assay (RPA) for VTG messenger RNA (mRNA) was developed for the fathead minnow (Pimephales promelas), a species proposed for routine endocrine-disrupting chemical (EDC) screening. The utility of this method was compared with an enzyme-linked immunosorbent assay (ELISA) specific for fathead minnow VTG protein. Assessment of the two methods included kinetic characterization of the plasma VTG protein and hepatic VTG mRNA levels in male fathead minnows following intraperitoneal injections of 17 beta -estradiol (E2) at two dose levels (0.5, 5.0 mg/kg). Initial plasma E2 concentrations were elevated in a dose-dependent manner but returned to normal levels within 2 d. Liver VTG mRNA was detected within 4 h, reached a maximum around 48 h, and returned to normal levels in about 6 d. Plasma VTG protein was detectable within 16 h of treatment, reached maximum levels at about 72 h, and remained near these maximum levels for at least 18 d. While the RPA was about 1,000 times more sensitive than the ELISA, the ELISA appears superior for routine screening tests. The ELISA method is relatively simple to perform and, because males lack a clearance mechanism for VTG, the protein remains at relatively high concentrations in the plasma for an extended period of time. As part of the development of the RPA, the complementary DNA (cDNA) sequence for fathead minnow VTG was determined and the deduced amino acid sequence compared with VTG sequences for other fish species. JF - Environmental Toxicology and Chemistry AU - Korte, J J AU - Kahl, MD AU - Jensen, K M AU - Pasha AU - Parks, L G AU - LeBlanc, G A AU - Ankley, G T AD - U.S. Environmental Protection Agency, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, Minnesota 55804, USA, korte.joe@epamail.epa.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 972 EP - 981 VL - 19 IS - 4 SN - 0730-7268, 0730-7268 KW - 17 beta -Estradiol KW - ELISA KW - Fathead minnow KW - Pimephales promelas KW - cDNA KW - estradiol-17b KW - ribonuclease protection assay KW - vitellogenin KW - Water Resources Abstracts; Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Aquatic organisms KW - Pollution monitoring KW - Biochemistry KW - Indicators KW - Pollution effects KW - Sex hormones KW - Assay KW - Endocrine system KW - Pollution indicators KW - Amino Acids KW - Enzyme-linked immunosorbent assay KW - Amino acids KW - Vitellogenesis KW - Fathead Minnows KW - mRNA KW - Comparison Studies KW - Water Pollution Effects KW - Vitellogenin KW - DNA KW - Liver KW - Proteins KW - Immunoassays KW - X 24222:Analytical procedures KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17595594?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Fathead+minnow+vitellogenin%3A+Complementary+DNA+sequence+and+messenger+RNA+and+protein+expression+after+17+beta+-estradiol+treatment&rft.au=Korte%2C+J+J%3BKahl%2C+MD%3BJensen%2C+K+M%3BPasha%3BParks%2C+L+G%3BLeBlanc%2C+G+A%3BAnkley%2C+G+T&rft.aulast=Korte&rft.aufirst=J&rft.date=2000-04-01&rft.volume=19&rft.issue=4&rft.spage=972&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pollution monitoring; Vitellogenesis; Pollution effects; Pollution indicators; Sex hormones; Enzyme-linked immunosorbent assay; Vitellogenin; Liver; Proteins; Endocrine system; mRNA; Aquatic organisms; Amino acids; Biochemistry; DNA; Immunoassays; Amino Acids; Comparison Studies; Water Pollution Effects; Assay; Indicators; Fathead Minnows ER - TY - JOUR T1 - Ant (Hymenoptera: Formicidae) Responses to Environmental Stressors in the Northern Chihuahuan Desert AN - 17546545; 4732079 AB - We studied responses of ant communities to shrub removal and intense pulse seasonal grazing by domestic livestock for four consecutive years. Weighted relative abundance and percent of traps in which an ant species occurred were analyzed using randomized complete block design, split in time analysis of variance to test for significant differences between means of ant groups. The ant community in the Chihuahuan Desert grassland is dominated by small, liquid-feeding ants, Conomyrma insana (Buckley), and large seed harvesting ants, Pogonomyrmex desertorum Wheeler. The weighted relative abundance of C. insana was significantly reduced on the plots without shrubs. The relative abundance of P. desertorum was significantly lower on grazed plots without shrubs than on the ungrazed plots without shrubs. There were no detectable effects of shrub removal or intense, pulse grazing on the less abundant ant species. These results suggest that the recent encroachment of shrubs into Chihuahuan Desert grasslands has increased the relative abundance of the dominant and species in these communities. Intensive grazing by livestock has had an adverse effect on the most abundant seed-harvester, P. desertorum. JF - Environmental Entomology AU - Nash AU - Whitford, W G AU - Van Zee, J AU - Havstad, K M AD - US EPA, NERL, ESD, P.O. Box 93478, Las Vegas, NV 89193-3478, USA Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 200 EP - 206 VL - 29 IS - 2 SN - 0046-225X, 0046-225X KW - Hymenoptera KW - Ants KW - Mexico KW - Ecology Abstracts; Entomology Abstracts KW - Temperature effects KW - Formicidae KW - Conomyrma insana KW - Pogonomyrmex desertorum KW - Deserts KW - Community structure KW - Environmental stress KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17546545?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Ant+%28Hymenoptera%3A+Formicidae%29+Responses+to+Environmental+Stressors+in+the+Northern+Chihuahuan+Desert&rft.au=Nash%3BWhitford%2C+W+G%3BVan+Zee%2C+J%3BHavstad%2C+K+M&rft.aulast=Nash&rft.aufirst=&rft.date=2000-04-01&rft.volume=29&rft.issue=2&rft.spage=200&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Formicidae; Pogonomyrmex desertorum; Conomyrma insana; Environmental stress; Temperature effects; Community structure; Deserts ER - TY - JOUR T1 - Variable Pulmonary Responses from Exposure to Concentrated Ambient Air Particles in a Rat Model of Bronchitis AN - 17540477; 4716704 AB - Chronic bronchitis may be considered a risk factor in particulate matter (PM)-induced morbidity. We hypothesized that a rat model of human bronchitis would be more susceptible to the pulmonary effects of concentrated ambient particles (CAPs) from Research Triangle Park, NC. Bronchitis was induced in male Sprague-Dawley rats (90-100 days of age) by exposure to 200 ppm sulfur dioxide (SO sub(2)), 6 h/day x 5 days/week x 6 weeks. One day following the last SO sub(2) exposure, both healthy (air-exposed) and bronchitic (SO sub(2)-exposed) rats were exposed to filtered air (three healthy; four bronchitic) or CAPs (five healthy; four bronchitic) by whole-body inhalation, 6 h/day x 2 or 3 days. Pulmonary injury was determined either immediately (0 h) or 18 h following final CAPs exposure. The study protocol involving 0 h time point was repeated four times (study #A, November, 1997; #B, February, 1998; #C and #D, May, 1998), whereas the study protocol involving 18 h time point was done only once (#F). In an additional study (#E), rats were exposed to residual oil fly ash (ROFA), similar to 1 mg/m super(3)x6 h/day x 3 days to mimic the CAPs protocol (February, 1998). The rats allowed 18 h recovery following CAPs exposure (#F) did not depict any CAPs-related differences in bronchoalveolar lavage fluid (BALF) injury markers. Of the four CAPs studies conducted (0 h time point), the first (#A) study ( similar to 650 mu g/m super(3) CAPs) revealed significant changes in the lungs of CAPs-exposed bronchitic rats compared to the clean air controls. These rats had increased BALF protein, albumin, N-acetyl glutaminidase (NAG) activity and neutrophils. The second (#B) study ( similar to 475 mu g/m super(3) CAPs) did not reveal any significant effects of CAPs on BALF parameters. Study protocols #C ( similar to 869 mu g/m super(3) CAPs) and #D ( similar to 907 mu g/m super(3) CAPs) revealed only moderate increases in the above mentioned BALF parameters in bronchitic rats exposed to CAPs. Pulmonary histologic evaluation of studies #A, #C, #D, and #F revealed marginally higher congestion and perivascular cellularity in CAPs-exposed bronchitic rats. Healthy and bronchitic rats exposed to ROFA ( similar to 1 mg/m super(3)) did not show significant pulmonary injury (#E). Analysis of leachable elemental components of CAPs revealed the presence of sulfur, zinc, manganese, and iron. There was an apparent lack of association between pulmonary injury and CAPs concentration, or its leachable sulfate or elemental content. In summary, real-time atmospheric PM may result in pulmonary injury, particularly in susceptible models. However, the variability observed in pulmonary responses to CAPs emphasizes the need to conduct repeated studies, perhaps in relation to the season, as composition of CAPs may vary. Additionally, potential variability in pathology of induced bronchitis or other lung disease may decrease the ability to distinguish toxic injury due to PM. JF - Toxicological Sciences AU - Kodavanti, U P AU - Mebane, R AU - Ledbetter, A AU - Krantz, T AU - McGee, J AU - Jackson, M C AU - Walsh, L AU - Hilliard, H AU - Chen, B Y AU - Richards, J AU - Costa, D L AD - Pulmonary Toxicology Branch, Experimental Toxicology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 441 EP - 451 VL - 54 IS - 2 SN - 1096-6080, 1096-6080 KW - concentrated ambient air particles KW - rats KW - Toxicology Abstracts KW - Air pollution KW - Airborne particulates KW - Lung KW - Particulate pollution KW - Bronchitis KW - X 24152:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17540477?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Variable+Pulmonary+Responses+from+Exposure+to+Concentrated+Ambient+Air+Particles+in+a+Rat+Model+of+Bronchitis&rft.au=Kodavanti%2C+U+P%3BMebane%2C+R%3BLedbetter%2C+A%3BKrantz%2C+T%3BMcGee%2C+J%3BJackson%2C+M+C%3BWalsh%2C+L%3BHilliard%2C+H%3BChen%2C+B+Y%3BRichards%2C+J%3BCosta%2C+D+L&rft.aulast=Kodavanti&rft.aufirst=U&rft.date=2000-04-01&rft.volume=54&rft.issue=2&rft.spage=441&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Particulate pollution; Air pollution; Lung; Airborne particulates; Bronchitis ER - TY - JOUR T1 - In Vitro and in Vivo Assessment of the Effect of Impurities and Chirality on Methamidophos-Induced Neuropathy Target Esterase Aging AN - 17540448; 4716700 AB - In vitro and in vivo studies evaluated neuropathy target esterase (NTE) inhibition and aging (i.e., loss of reactivation potential) by analytical and technical grade racemic and resolved L-(-) and D-(+) isomers of methamidophos (O,S-dimethyl phosphoramidothioate). For studies in vitro, microsomal protein from phenobarbital-induced livers was isolated from chick embryos and NTE inhibition assays were performed using chick embryo brain homogenate treated with 1 or 5 mM methamidophos (with and without metabolic enzymes); for studies in vivo, hens received 30 to 35 mg/kg methamidophos injected into the pectoral muscle. NTE aging in hens was assessed 24 h later or after 30 min to 1 h incubation in vitro using solutions of potassium fluoride (KF) reactivator. Technical methamidophos produced significantly higher levels of aged-inhibited NTE than analytical methamidophos or isolated optical isomers. In vivo, technical methamidophos produced 61% total NTE inhibition with 18% aged and 43% unaged NTE; hens receiving analytical grade averaged 6% aged, 52% unaged, and 58% total NTE inhibition. Results for 1 mM analytical methamidophos in vitro were 5% aged, 54% unaged, and 59% total inhibition; for 1 mM technical methamidophos, values averaged 11% aged, 50% unaged, and 60% total NTE inhibition. The degree of NTE aging obtained both in vivo and in vitro for the isolated D-(+) and L-(-) isomers never exceeded that obtained using analytical grade. These data indicate that impurities in methamidophos could contribute to OPIDN potential. The in vitro methodology described could be applied to first tier screening for detection of NTE inhibition and aging, thus reducing the need for whole-animal testing for OPIDN. JF - Toxicological Sciences AU - Kellner, T AU - Sanborn, J AU - Wilson, B AD - Department of Pesticide Regulation, California Environmental Protection Agency, Sacramento, California 95814, USA Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 408 EP - 415 VL - 54 IS - 2 SN - 1096-6080, 1096-6080 KW - chickens KW - hens KW - methamidophos KW - neuropathy target esterase KW - neuropathy target esterases KW - CSA Neurosciences Abstracts; Toxicology Abstracts KW - Pesticides KW - Aging KW - X 24135:Biochemistry KW - N3 11103:Nonmammalian vertebrates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17540448?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=In+Vitro+and+in+Vivo+Assessment+of+the+Effect+of+Impurities+and+Chirality+on+Methamidophos-Induced+Neuropathy+Target+Esterase+Aging&rft.au=Kellner%2C+T%3BSanborn%2C+J%3BWilson%2C+B&rft.aulast=Kellner&rft.aufirst=T&rft.date=2000-04-01&rft.volume=54&rft.issue=2&rft.spage=408&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aging; Pesticides ER - TY - JOUR T1 - Get Real! AN - 16135489; 4780448 AB - Combined sewer overflow (CSO) is a significant source of pollution in receiving waters. However, implementing a real-time control scheme operates automatic regulators more efficiently to maximize a collection system's storage, treatment, and transport capacities, reducing the volume and number of CSOs. Real-time control schemes are being used to manage complex urban collection systems around the world, including a demonstration study in Canada for the Quebec Urban Community (QUC) collection system. Funded by the U.S. Environmental Protection Agency (under a contract to the Office of Research and Development) to assess the use of real-time control schemes, the QUC study evaluated the effectiveness of three schemes in managing CSOs. JF - Water Environment & Technology AU - Field, R AU - Villeneuve, E AU - Stinson, M K AU - Jolicoeur, N AU - Pleau, M AU - Lavallee, P AD - U.S. Environmental Protection Agency, National Risk Management Research Laboratory (Edison, NJ), USA Y1 - 2000/04// PY - 2000 DA - Apr 2000 VL - 12 IS - 4 SN - 1044-9493, 1044-9493 KW - Canada KW - Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Water Pollution Sources KW - Wastewater Collection KW - Water quality control KW - Combined Sewer Overflows KW - Stormwater runoff KW - Runoff (Urban) KW - Urban Areas KW - combined sewer overflows KW - Urban Runoff KW - Sewerage KW - Water Quality Control KW - Pollution (Water) KW - Storm overflows KW - Urban areas KW - P 2000:FRESHWATER POLLUTION KW - AQ 00005:Underground Services and Water Use KW - SW 2010:Control of water on the surface UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16135489?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Environment+%26+Technology&rft.atitle=Get+Real%21&rft.au=Field%2C+R%3BVilleneuve%2C+E%3BStinson%2C+M+K%3BJolicoeur%2C+N%3BPleau%2C+M%3BLavallee%2C+P&rft.aulast=Field&rft.aufirst=R&rft.date=2000-04-01&rft.volume=12&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Environment+%26+Technology&rft.issn=10449493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-12-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Water quality control; Stormwater runoff; combined sewer overflows; Urban areas; Runoff (Urban); Sewerage; Pollution (Water); Storm overflows; Combined Sewer Overflows; Water Pollution Sources; Urban Areas; Urban Runoff; Wastewater Collection; Water Quality Control ER - TY - JOUR T1 - Summary of Well Water Sampling in California to Detect Pesticide Residues Resulting from Nonpoint-Source Applications AN - 16134550; 5136964 AB - This report summarizes well sampling protocols, data collection procedures, and analytical results for the presence of pesticides in ground water developed by the California Department of Pesticide Regulation (DPR). Specific well sampling protocols were developed to meet regulatory mandates of the Pesticide Contamination Prevention Act (PCPA) of 1986 and to provide further understanding of the agronomic, chemical, and geographic factors that contribute to movement of residues to ground water. The well sampling data have formed the basis for the DPR's regulatory decisions. For example, a sampling protocol, the Four-Section Survey, was developed to determine if reported detections were caused by nonpoint-source agricultural applications, a determination that can initiate formal review and subsequent regulation of a pesticide. Selection of sampling sites, which are primarily rural domestic wells, was initially based on pesticide use and cropping patterns. Recently, soil and depth-to-ground water data have been added to identify areas where a higher frequency of detection is expected. In accordance with the PCPA, the DPR maintains a database for all pesticide well sampling in California with submission required by all state agencies and with invitations for submission extended to all local and federal agencies or other entities. To date, residues for 16 active ingredients and breakdown products have been detected in California ground water as a result of legal agricultural use. Regulations have been adopted for all detected parent active ingredients, and they have been developed regardless of the level of detection. JF - Journal of Environmental Quality AU - Troiano, J AU - Weaver, D AU - Marade, J AU - Spurlock, F AU - Pepple, M AU - Nordmark, C AU - Bartkowiak, D AD - Environmental Monitoring and Pest Management Branch, Dep. of Pesticide Regulation, California EPA, 830 K Street Mall, Sacramento, CA 95814-3510, USA, jtroiano@cdpr.ca.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 448 EP - 459 VL - 30 IS - 2 SN - 0047-2425, 0047-2425 KW - Pesticide Contamination Prevention Act KW - USA, California KW - Well water KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Agriculture KW - Water Pollution KW - Agricultural Runoff KW - Water sampling KW - Pesticide residues KW - Agricultural pollution KW - Water Sampling KW - Pollution effects KW - Well Water KW - Crops KW - Wells (see also Boreholes) KW - Public health KW - Government regulations KW - Ground water KW - Sampling KW - Data collection KW - Pollution detection KW - Data processing KW - Pesticides (see also Bactericides, Weedkillers) KW - Nonpoint Pollution Sources KW - Nonpoint pollution KW - Water supply KW - Pesticides KW - Analytical techniques KW - Water wells KW - Groundwater pollution KW - Chemical pollutants KW - Water quality (Natural waters) KW - Legislation KW - Q5 08503:Characteristics, behavior and fate KW - P 9000:ENVIRONMENTAL ACTION KW - P 2000:FRESHWATER POLLUTION KW - SW 3010:Identification of pollutants KW - AQ 00002:Water Quality KW - Q5 08524:Public health, medicines, dangerous organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16134550?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Summary+of+Well+Water+Sampling+in+California+to+Detect+Pesticide+Residues+Resulting+from+Nonpoint-Source+Applications&rft.au=Troiano%2C+J%3BWeaver%2C+D%3BMarade%2C+J%3BSpurlock%2C+F%3BPepple%2C+M%3BNordmark%2C+C%3BBartkowiak%2C+D&rft.aulast=Troiano&rft.aufirst=J&rft.date=2000-04-01&rft.volume=30&rft.issue=2&rft.spage=448&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-05-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Data processing; Pollution detection; Water sampling; Agricultural pollution; Analytical techniques; Pesticides; Ground water; Groundwater pollution; Pollution effects; Chemical pollutants; Public health; Water supply; Government regulations; Data collection; Pesticide residues; Water wells; Nonpoint pollution; Legislation; Agriculture; Pesticides (see also Bactericides, Weedkillers); Sampling; Crops; Water quality (Natural waters); Wells (see also Boreholes); Water Pollution; Agricultural Runoff; Water Sampling; Nonpoint Pollution Sources; Well Water ER - TY - JOUR T1 - Origin and distribution of potassium bromate-induced testicular and peritoneal mesotheliomas in rats. AN - 71103969; 10805143 AB - Tissue sections were examined from a 2-year bioassay of male Fischer 344 rats treated with potassium bromate administered in drinking water. All animals exhibiting peritoneal mesotheliomas also had mesotheliomas of the tunica vaginalis testis mesorchium (the reverse was not true), and the correlation of these 2 types of mesotheliomas was highly significant (r2 = 0.98). Mapping of the tunica vaginalis tumors at all time points and at all bromate concentrations revealed a pattern of increasing incidence of tumor formation on the mesothelium of the tunica vaginalis testis as a function of proximity to the mesorchial ligament. Thus, the mesorchium appears to be the major mesothelial target site for potassium bromate-mediated carcinogenesis. The frequency of occurrence of mesotheliomas by location was tunica vaginalis testis (25%), mesosplenium (20%), mesentery (10%), mesojejunum/mesocolon (8%), bladder (6.5%), mesogastrium (13%), liver serosa (5%), and kidney, small intestine, and rectum (1% each). A complete cross-section of the rat testis was prepared and used to construct a complete map of the mesothelium. Any attempt to determine the role of local dose and tissue susceptibility for the purpose of interspecies risk extrapolation must take into account the complex anatomy and physiology of this region of the visceral and testicular suspensory apparatus. Improved histologic approaches are needed for adequate assessment of this delicate suspensory system. JF - Toxicologic pathology AU - Crosby, L M AU - Morgan, K T AU - Gaskill, B AU - Wolf, D C AU - DeAngelo, A B AD - US Environmental Protection Agency and Department of Toxicology, North Carolina State University, Research Triangle Park, North Carolina 27711, USA. lmc78819@glaxowellcome.com PY - 2000 SP - 253 EP - 266 VL - 28 IS - 2 SN - 0192-6233, 0192-6233 KW - Bromates KW - 0 KW - Carcinogens KW - potassium bromate KW - 04MB35W6ZA KW - Index Medicus KW - Rats KW - Animals KW - Rats, Inbred F344 KW - Testis -- blood supply KW - Testis -- pathology KW - Carcinogenicity Tests KW - Precancerous Conditions -- pathology KW - Male KW - Peritoneal Neoplasms -- chemically induced KW - Neoplasms, Multiple Primary -- pathology KW - Testicular Neoplasms -- pathology KW - Bromates -- toxicity KW - Peritoneal Neoplasms -- pathology KW - Carcinogens -- toxicity KW - Mesothelioma -- pathology KW - Mesothelioma -- chemically induced KW - Testicular Neoplasms -- chemically induced KW - Neoplasms, Multiple Primary -- chemically induced UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71103969?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicologic+pathology&rft.atitle=Origin+and+distribution+of+potassium+bromate-induced+testicular+and+peritoneal+mesotheliomas+in+rats.&rft.au=Crosby%2C+L+M%3BMorgan%2C+K+T%3BGaskill%2C+B%3BWolf%2C+D+C%3BDeAngelo%2C+A+B&rft.aulast=Crosby&rft.aufirst=L&rft.date=2000-03-01&rft.volume=28&rft.issue=2&rft.spage=253&rft.isbn=&rft.btitle=&rft.title=Toxicologic+pathology&rft.issn=01926233&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-07-26 N1 - Date created - 2000-07-26 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Design strategy for assessing multi-pathway exposure for children: the Minnesota Children's Pesticide Exposure Study (MNCPES). AN - 71080065; 10791596 AB - Although children are exposed to a variety of environmental hazards, including pesticides, there is a scarcity of information available to estimate exposures realistically. This article reports on one of the first attempts to measure multi-pathway pesticide exposures in a population-based sample of urban and non-urban children. A design strategy was developed to assess multi-pathway pesticide exposures in children using personal exposure measurements in combination with complimentary measurements of biological markers of exposure, concentrations in relevant environmental media, and time spent in important microenvironments and participating in exposure-related activities. Sample collection and analysis emphasized measurement of three insecticides (i.e., chlorpyrifos, diazinon, and malathion) and one herbicide (i.e., atrazine). These compounds were selected because of their frequent use, presence in multiple environmental media, expected population exposures, and related hazard/toxicity. The study was conducted during the summer of 1997 in Minnesota and involved a stratified sample of households with children ages 3-12 years. Participants resided in either (a) the cities of Minneapolis and St. Paul (urban households), or (b) Rice and Goodhue Counties just south of the metropolitan area (non-urban households). Results from a residential inventory documenting storage and use of products containing the target pesticides were used to preferentially select households where children were likely to have higher exposures. The study successfully obtained pesticide exposure data for 102 children, including measurements of personal exposures (air, hand rinse, duplicate diet), environmental concentrations (residential indoor/outdoor air, drinking water, residential surfaces, soil), activity patterns (obtained by questionnaire, diary, videotaping), and internal dose (metabolites in urine). JF - Journal of exposure analysis and environmental epidemiology AU - Quackenboss, J J AU - Pellizzari, E D AU - Shubat, P AU - Whitmore, R W AU - Adgate, J L AU - Thomas, K W AU - Freeman, N C AU - Stroebel, C AU - Lioy, P J AU - Clayton, A C AU - Sexton, K AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory, Las Vegas, Nevada 89193-3478, USA. quackenboss.james@epa.gov PY - 2000 SP - 145 EP - 158 VL - 10 IS - 2 SN - 1053-4245, 1053-4245 KW - Biomarkers KW - 0 KW - Pesticides KW - Index Medicus KW - Sensitivity and Specificity KW - Minnesota KW - Rural Population KW - Humans KW - Child KW - Research Design KW - Child, Preschool KW - Biomarkers -- analysis KW - Health Surveys KW - Data Collection KW - Urban Population KW - Female KW - Male KW - Pesticides -- analysis KW - Environmental Exposure -- analysis KW - Child Welfare KW - Pesticides -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71080065?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.atitle=Design+strategy+for+assessing+multi-pathway+exposure+for+children%3A+the+Minnesota+Children%27s+Pesticide+Exposure+Study+%28MNCPES%29.&rft.au=Quackenboss%2C+J+J%3BPellizzari%2C+E+D%3BShubat%2C+P%3BWhitmore%2C+R+W%3BAdgate%2C+J+L%3BThomas%2C+K+W%3BFreeman%2C+N+C%3BStroebel%2C+C%3BLioy%2C+P+J%3BClayton%2C+A+C%3BSexton%2C+K&rft.aulast=Quackenboss&rft.aufirst=J&rft.date=2000-03-01&rft.volume=10&rft.issue=2&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.issn=10534245&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-20 N1 - Date created - 2000-06-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Behavioral components of tolerance to repeated inhalation of trichloroethylene (TCE) in rats. AN - 71022707; 10758351 AB - The possibility that the acute neurotoxic effects of organic solvents change with repeated exposure will affect risk assessment of these pollutants. We observed previously that rats inhaling trichloroethylene (TCE) showed a progressive attenuation of impairment of signal detection behavior across several weeks of intermittent exposure, suggesting the development of tolerance. Here, we explored the development of tolerance to TCE during two weeks of daily exposures, and the degree to which learned behavioral modifications ("behavioral tolerance") could account for the effect. Adult Long-Evans rats were trained to perform a visual signal detection task (SDT) in which a press on one lever yielded food if a visual stimulus (a "signal") had occurred on that trial, and a press on a second lever produced food if no signal had been presented. In two experiments, with 2000 and 2400 ppm of TCE respectively, trained rats were divided into two groups (n = 8/group) with equivalent accuracy and then exposed to TCE in two-phase studies. In Phase 1, one group of rats received daily SDT tests paired with 70-min TCE exposures, followed by 70-min exposures to clean air after testing. The other group received daily SDT tests in clean air, followed by 70-min exposures to TCE (unpaired exposure and testing). All rats thus received the same number and daily sequence of exposures to TCE that differed only in the pairing with SDT testing. Both concentrations of TCE disrupted performance of the paired groups and this disruption abated over the 9 days of exposure. In Phase 2, the pairing of exposure and test conditions were reversed for the two groups. The groups that were shifted from unpaired to paired exposures (Unpaired-Paired groups) showed qualitatively similar patterns of deficit and recovery as did the rats whose tests were initially paired with TCE (Paired-Unpaired groups), indicating that task-specific learning was involved in the development of tolerance. Quantitative differences in the magnitude and duration of the effects of TCE in the two groups indicated that other factors, not specific to the SDT, also contributed to the development tolerance to TCE. Published by Elsevier Science Inc. JF - Neurotoxicology and teratology AU - Bushnell, P J AU - Oshiro, W M AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA. bushnell.philip@epa.gov PY - 2000 SP - 221 EP - 229 VL - 22 IS - 2 SN - 0892-0362, 0892-0362 KW - Trichloroethylene KW - 290YE8AR51 KW - Index Medicus KW - Rats KW - Drug Tolerance KW - Animals KW - Photic Stimulation KW - Rats, Long-Evans KW - Reward KW - Dose-Response Relationship, Drug KW - Administration, Inhalation KW - Male KW - Conditioning, Operant -- drug effects KW - Trichloroethylene -- administration & dosage KW - Trichloroethylene -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71022707?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Neurotoxicology+and+teratology&rft.atitle=Behavioral+components+of+tolerance+to+repeated+inhalation+of+trichloroethylene+%28TCE%29+in+rats.&rft.au=Bushnell%2C+P+J%3BOshiro%2C+W+M&rft.aulast=Bushnell&rft.aufirst=P&rft.date=2000-03-01&rft.volume=22&rft.issue=2&rft.spage=221&rft.isbn=&rft.btitle=&rft.title=Neurotoxicology+and+teratology&rft.issn=08920362&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-05-12 N1 - Date created - 2000-05-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - An ex post cost-benefit analysis of the nitrogen dioxide air pollution control program in Tokyo. AN - 71008055; 10734711 AB - The benefits and costs of past nitrogen dioxide (NO2) control policies were calculated for Tokyo, Japan, using environmental, economic, political, demographic, and medical data from 1973 to 1994. The benefits of NO2 control were estimated as medical expenses and lost work time due to hypothetical no-control air concentrations of NO2. Direct costs were calculated as annualized capital expenditures and 1 year's operating costs for regulated industries plus governmental agency expenses. The major findings were as follows: (1) Using Tokyo's average medical cost of pollution-related illness, the best net estimate of the avoided medical costs due to incidence of phlegm and sputum in adults was 730 billion yen ($6.08 billion; 1 U.S. dollar = 120 yen). (2) The best net estimate of the avoided medical costs due to incidence of lower respiratory illness in children was 93 billion yen ($775 million). (3) Using Tokyo's average duration of pollution-related illness and average wages, the best net estimate of the avoided costs of lost wages in workers was 760 billion yen ($6.33 billion). (4) The best net estimate of the avoided costs of lost wages in mothers caring for their sick children was 100 billion yen ($833 million). (5) Using Tokyo-specific data, the best net costs were estimated as 280 billion yen ($2.33 billion). (6) Using human health and productivity benefits, and annualized capital cost and operating cost estimates, the best net benefits-to-costs ratio was 6:1 (upper limit 44:1; lower limit 0.3:1). Benefit calculations were sensitive to assumptions of mobile source emissions and certain health impacts that were not included. Cost calculations were highly dependent on assumptions of flue gas volume and fuel use. For comparative purposes, we identified other studies for air pollution-related illness. Assumptions that formed the basis for most of the inputs in the present study, such as duration of illness, medical treatment costs, per person illness in children, and lost wages for working mothers, were similar to those recommended in the literature. Lost wages in sick workers and per capita illness incidence in adults were higher than numbers reported elsewhere. Further advances in cost-benefit analysis (CBA) procedures to evaluate the economic effectiveness of NO2 controls in Tokyo are recommended to estimate impacts and values for additional human health benefits, ecosystem health and productivity effects, and nonliving system effects, as well as benefits of ancillary reductions in other pollutants. The present study suggests that Tokyo's past NO2 control policies in total were economically quite effective. JF - Journal of the Air & Waste Management Association (1995) AU - Voorhees, A S AU - Araki, S AU - Sakai, R AU - Sato, H AD - Department of Public Health and Occupational Medicine, Graduate School of Medicine, University of Tokyo, Japan. voorhees.scott@epa.gov Y1 - 2000/03// PY - 2000 DA - March 2000 SP - 391 EP - 410 VL - 50 IS - 3 SN - 1096-2247, 1096-2247 KW - Oxidants, Photochemical KW - 0 KW - Nitrogen Dioxide KW - S7G510RUBH KW - Index Medicus KW - Respiratory Tract Diseases -- economics KW - Tokyo KW - Humans KW - Cost-Benefit Analysis KW - Adult KW - Respiratory Tract Diseases -- chemically induced KW - Oxidants, Photochemical -- adverse effects KW - Nitrogen Dioxide -- analysis KW - Nitrogen Dioxide -- adverse effects KW - Air Pollution -- prevention & control KW - Air Pollution -- adverse effects KW - Oxidants, Photochemical -- economics KW - Oxidants, Photochemical -- analysis KW - Nitrogen Dioxide -- economics KW - Air Pollution -- economics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71008055?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.atitle=An+ex+post+cost-benefit+analysis+of+the+nitrogen+dioxide+air+pollution+control+program+in+Tokyo.&rft.au=Voorhees%2C+A+S%3BAraki%2C+S%3BSakai%2C+R%3BSato%2C+H&rft.aulast=Voorhees&rft.aufirst=A&rft.date=2000-03-01&rft.volume=50&rft.issue=3&rft.spage=391&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.issn=10962247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-04-25 N1 - Date created - 2000-04-25 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Time course of response to ozone exposure in healthy adult females. AN - 70958443; 10715622 AB - Ozone exposure causes acute decrements in pulmonary function, increases airway responsiveness, and changes the breathing pattern. We examined these responses in 19 ozone-responsive (DeltaFEV(1) > 5%) young females exposed to both air and 0.35 ppm ozone. The randomized 75-min exposures included two 30-min exercise periods at V(E) approximately 40 L/min. Responses were measured before, during, and after exposure and at 18 and 42 h postexposure. FVC, FEV(1), and FIV(0.5) decreased (p <.01) immediately postexposure by 13.2%, 19.9%, and 20.8%, respectively, and the airway responsiveness was significantly increased. Raw increased (p <.05), while TGV remained essentially unchanged. At 18 h postexposure, the airways were still hyperresponsive and FEV(1) and FIV(0.5) were still 5% below the preexposure levels. There were no residual effects in any of the variables at 42 h postexposure. During exercise in ozone the tidal volume was decreased (-14%) and respiratory frequency increased (+15%). The changes in airway responsiveness were not related to changes in spirometric measurements. We found no significant differences between postair and postozone mouth occlusion pressure (Pm(0.1)) and the hypercapnic response to CO(2) rebreathing. We conclude that ozone induced typical acute changes in airway responsiveness and that ventilatory (exercise), spirometric (inspiratory and expiratory), and plethysmographic pulmonary function may show some residual effects for up to 18 h after exposure. The ozone-induced alteration in breathing pattern during exercise does not appear to be related to a change in ventilatory drive. JF - Inhalation toxicology AU - Folinsbee, L J AU - Hazucha, M J AD - National Center for Environmental Assessment, United States Environmental Protection Agency, MD 52, Research Triangle Park, NC 27711, USA. Folinsbee.Lawrence@epa.gov Y1 - 2000/03// PY - 2000 DA - March 2000 SP - 151 EP - 167 VL - 12 IS - 3 SN - 0895-8378, 0895-8378 KW - Air Pollutants KW - 0 KW - Methacholine Chloride KW - 0W5ETF9M2K KW - Carbon Dioxide KW - 142M471B3J KW - Ozone KW - 66H7ZZK23N KW - Index Medicus KW - Respiratory Function Tests KW - Methacholine Chloride -- pharmacology KW - Carbon Dioxide -- administration & dosage KW - Random Allocation KW - Humans KW - Airway Resistance -- physiology KW - Exercise Test KW - Airway Resistance -- drug effects KW - Spirometry KW - Adult KW - Atmosphere Exposure Chambers KW - Plethysmography -- drug effects KW - Administration, Inhalation KW - Time Factors KW - Female KW - Inhalation Exposure KW - Lung -- drug effects KW - Ozone -- administration & dosage KW - Lung -- physiology KW - Air Pollutants -- adverse effects KW - Ozone -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70958443?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Inhalation+toxicology&rft.atitle=Time+course+of+response+to+ozone+exposure+in+healthy+adult+females.&rft.au=Folinsbee%2C+L+J%3BHazucha%2C+M+J&rft.aulast=Folinsbee&rft.aufirst=L&rft.date=2000-03-01&rft.volume=12&rft.issue=3&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=Inhalation+toxicology&rft.issn=08958378&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-26 N1 - Date created - 2000-10-16 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Ecological risk assessment: implications of hormesis. AN - 70956912; 10715611 AB - Hormesis is a widespread phenomenon across many taxa and chemicals, and, at the single species level, issues regarding the application of hormesis to human health and ecological risk assessment are similar. For example, convincing the public of a 'beneficial' effect of environmental chemicals may be problematic, and the design and analysis of laboratory studies may require modifications to detect hormesis. However, interpreting the significance of hormesis for even a single species in an ecological risk assessment can be complicated by considerations of competition with other species, predation effects, etc. Ecological risk assessments involve more than a single species; they may involve communities of hundreds or thousands of species as well as a range of ecological processes. Applying hormetic adjustments to threshold effect levels for chemicals derived from sensitivity distributions for a large number of species is impractical. For ecological risks, chemical stressors are frequently of lessor concern than physical stressors such as habitat alteration or biological stressors such as introduced species, but the relevance of hormesis to non-chemical stressors is unclear. Although ecological theories such as the intermediate disturbance hypothesis offer some intriguing similarities between chemical hormesis and hormetic-like responses resulting from physical disturbances, mechanistic explanations are lacking. Further exploration of the relevance of hormesis to ecological risk assessment is desirable. Aspects deserving additional attention include developing a better understanding of the hormetic effects of chemical mixtures, the relevance of hormesis to physical and biological stressors and the development of criteria for determining when hormesis is likely to be relevant to ecological risk assessments. JF - Journal of applied toxicology : JAT AU - van der Schalie, W H AU - Gentile, J H AD - National Center for Environmental Assessment-Washington Office, US Environmental Protection Agency, Washington, DC 20460, USA. PY - 2000 SP - 131 EP - 139 VL - 20 IS - 2 SN - 0260-437X, 0260-437X KW - Environmental Pollutants KW - 0 KW - Index Medicus KW - Animals KW - Dose-Response Relationship, Drug KW - Humans KW - Risk Assessment -- methods KW - Ecology KW - Adaptation, Physiological -- drug effects KW - Environmental Pollutants -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70956912?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+applied+toxicology+%3A+JAT&rft.atitle=Ecological+risk+assessment%3A+implications+of+hormesis.&rft.au=van+der+Schalie%2C+W+H%3BGentile%2C+J+H&rft.aulast=van+der+Schalie&rft.aufirst=W&rft.date=2000-03-01&rft.volume=20&rft.issue=2&rft.spage=131&rft.isbn=&rft.btitle=&rft.title=Journal+of+applied+toxicology+%3A+JAT&rft.issn=0260437X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-04-21 N1 - Date created - 2000-04-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Reference dose (RfD): the possible impact of hormesis. AN - 70956909; 10715610 AB - A fictitious US Environmental Protection Agency Administrator in the year 2005 is confronted with making a risk management decision on a chemical that exhibits an unambiguous hormetic effect in an animal system. Dose-response curves for average humans and sensitive humans are derived from the animal data. The question is posed: What should the reference dose (RfD) be in this case? A series of outstanding scientific and policy questions are discussed that have a bearing on the answer. The concept of the 'regulatory dose (RgD)' is revived to address, if not resolve, the issue. JF - Journal of applied toxicology : JAT AU - Barnes, D G AD - Science Advisory Board (1400), US Environmental Protection Agency, Washington, DC 20460, USA. barnes.don@epa.gov PY - 2000 SP - 127 EP - 130 VL - 20 IS - 2 SN - 0260-437X, 0260-437X KW - Environmental Pollutants KW - 0 KW - Index Medicus KW - United States KW - Animals KW - United States Environmental Protection Agency KW - No-Observed-Adverse-Effect Level KW - Dose-Response Relationship, Drug KW - Humans KW - Risk Assessment -- methods KW - Adaptation, Physiological -- drug effects KW - Environmental Pollutants -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70956909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+applied+toxicology+%3A+JAT&rft.atitle=Reference+dose+%28RfD%29%3A+the+possible+impact+of+hormesis.&rft.au=Barnes%2C+D+G&rft.aulast=Barnes&rft.aufirst=D&rft.date=2000-03-01&rft.volume=20&rft.issue=2&rft.spage=127&rft.isbn=&rft.btitle=&rft.title=Journal+of+applied+toxicology+%3A+JAT&rft.issn=0260437X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-04-21 N1 - Date created - 2000-04-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Estimating cancer risk from outdoor concentrations of hazardous air pollutants in 1990. AN - 70935328; 10702327 AB - A public health concern regarding hazardous air pollutants (HAPs) is their potential to cause cancer. It has been difficult to assess potential cancer risks from HAPs, due primarily to lack of ambient concentration data for the general population. The Environmental Protection Agency's Cumulative Exposure Project modeled 1990 outdoor concentrations of HAPs across the United States, which were combined with inhalation unit risk estimates to estimate the potential increase in excess cancer risk for individual carcinogenic HAPs. These were summed to provide an estimate of cancer risk from multiple HAPs. The analysis estimates a median excess cancer risk of 18 lifetime cancer cases per 100,000 people for all HAP concentrations. About 75% of estimated cancer risk was attributable to exposure to polycyclic organic matter, 1,3-butadiene, formaldehyde, benzene, and chromium. Consideration of some specific uncertainties, including underestimation of ambient concentrations, combining upper 95% confidence bound potency estimates, and changes to potency estimates, found that cancer risk may be underestimated by 15% or overestimated by 40-50%. Other unanalyzed uncertainties could make these under- or overestimates larger. This analysis used 1990 estimates of concentrations and can be used to track progress toward reducing cancer risk to the general population. JF - Environmental research AU - Woodruff, T J AU - Caldwell, J AU - Cogliano, V J AU - Axelrad, D A AD - United States Environmental Protection Agency, 401 M Street, S.W. (2123), Room 3202, Washington, DC 20460, USA. woodruff.tracey@epa.gov Y1 - 2000/03// PY - 2000 DA - March 2000 SP - 194 EP - 206 VL - 82 IS - 3 SN - 0013-9351, 0013-9351 KW - Air Pollutants KW - 0 KW - Carcinogens KW - Index Medicus KW - Reproducibility of Results KW - Humans KW - Infant, Newborn KW - Aged KW - Child KW - Risk Assessment KW - Child, Preschool KW - Infant KW - Public Health KW - Epidemiologic Studies KW - Adult KW - Middle Aged KW - Adolescent KW - Female KW - Male KW - Models, Theoretical KW - Air Pollutants -- adverse effects KW - Neoplasms -- etiology KW - Carcinogens -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70935328?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+research&rft.atitle=Estimating+cancer+risk+from+outdoor+concentrations+of+hazardous+air+pollutants+in+1990.&rft.au=Woodruff%2C+T+J%3BCaldwell%2C+J%3BCogliano%2C+V+J%3BAxelrad%2C+D+A&rft.aulast=Woodruff&rft.aufirst=T&rft.date=2000-03-01&rft.volume=82&rft.issue=3&rft.spage=194&rft.isbn=&rft.btitle=&rft.title=Environmental+research&rft.issn=00139351&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-04-28 N1 - Date created - 2000-04-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A comparison of hydraulic conductivity values determined experimentally with those calculated using grain size distribution AN - 52179042; 2001-073134 JF - Abstracts with Programs - Geological Society of America AU - Barr, Heather M AU - Jewett, David G AU - Anonymous Y1 - 2000/03// PY - 2000 DA - March 2000 SP - 3 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 4 SN - 0016-7592, 0016-7592 KW - United States KW - hydrology KW - Mappsville Virginia KW - Virginia KW - Quaternary KW - clastic sediments KW - textures KW - grain size KW - porous materials KW - cores KW - measurement KW - Cenozoic KW - size distribution KW - sediments KW - hydraulic conductivity KW - Delmarva Peninsula KW - Accomack County Virginia KW - pore water KW - field studies KW - Atlantic Coastal Plain KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52179042?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=A+comparison+of+hydraulic+conductivity+values+determined+experimentally+with+those+calculated+using+grain+size+distribution&rft.au=Barr%2C+Heather+M%3BJewett%2C+David+G%3BAnonymous&rft.aulast=Barr&rft.aufirst=Heather&rft.date=2000-03-01&rft.volume=32&rft.issue=4&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, North-Central Section, 34th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Accomack County Virginia; Atlantic Coastal Plain; Cenozoic; clastic sediments; cores; Delmarva Peninsula; field studies; grain size; hydraulic conductivity; hydrology; Mappsville Virginia; measurement; pore water; porous materials; Quaternary; sediments; size distribution; textures; United States; Virginia ER - TY - JOUR T1 - LNAPL effects on GPR data AN - 52177863; 2001-073207 AB - Ground penetrating radar (GPR) is a high frequency geophysical technique used for investigating geologic, engineering and environmental problems. An area of research in recent years has concerned the viability of using GPR as a means to detect and monitor the extent of light non-aqueous phase liquids (LNAPL's) contaminating the subsurface. Field studies have correlated anomalous responses in GPR data to areas of known contamination. Physical model and laboratory experiments have been conducted and along with theoretical models have explained some anomalous responses and have identified circumstances under which GPR is capable of serving as a detection tool. Despite the findings of these studies there is much that remains to be understood about GPR and LNAPL detection. This topic is an ongoing area of research at the Ohio State University. JF - Abstracts with Programs - Geological Society of America AU - Guy, Erich D AU - Daniels, Jeffrey J AU - Kim, Changryol AU - Holt, Jennifer AU - Radzevicius, Stanley J AU - Vendl, Mark A AU - Anonymous Y1 - 2000/03// PY - 2000 DA - March 2000 SP - 15 EP - 16 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 4 SN - 0016-7592, 0016-7592 KW - experimental studies KW - pollutants KW - ground-penetrating radar KW - geophysical methods KW - radar methods KW - pollution KW - light nonaqueous phase liquids KW - anomalies KW - physical models KW - nonaqueous phase liquids KW - laboratory studies KW - detection KW - identification KW - electromagnetic methods KW - theoretical models KW - field studies KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52177863?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=LNAPL+effects+on+GPR+data&rft.au=Guy%2C+Erich+D%3BDaniels%2C+Jeffrey+J%3BKim%2C+Changryol%3BHolt%2C+Jennifer%3BRadzevicius%2C+Stanley+J%3BVendl%2C+Mark+A%3BAnonymous&rft.aulast=Guy&rft.aufirst=Erich&rft.date=2000-03-01&rft.volume=32&rft.issue=4&rft.spage=15&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, North-Central Section, 34th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - anomalies; detection; electromagnetic methods; experimental studies; field studies; geophysical methods; ground-penetrating radar; identification; laboratory studies; light nonaqueous phase liquids; nonaqueous phase liquids; physical models; pollutants; pollution; radar methods; theoretical models ER - TY - JOUR T1 - Analysis of multi-component ground penetrating radar data from a brownfield site in Chicago, Illinois AN - 52177794; 2001-073169 AB - Ground penetrating radar (GPR) is a high frequency electromagnetic geophysical technique that is frequently applied towards the characterization of sites of environmental concern. Brownfields are areas that are thought to have possible environmental contamination and remain undeveloped until they are characterized and remediated. GPR has the potential to aid in characterization of Brownfields as it offers a non-invasive, cost-effective way to investigate these sites. Parallel dipole (co-pole) and crossed dipole (cross-pole) GPR data were acquired at a Brownfield site in Chicago, Illinois to locate buried pipes, tanks, voids and other possible contaminant-filled structures. Cross-pole data have been shown to be useful for site characterization as the signal to noise ratio can be improved relative to co-pole data, however, this antenna configuration is not typically employed when GPR is used for site investigation. Comparisons of the cross-pole and co-pole data from this site demonstrate the potential importance of considering cross-pole data for use at Brownfields. Anomalies interpreted in the GPR data were correlated with anomalies in EM induction and multi-component magnetic data acquired at the site. The GPR data proved successful in helping locate pipes, voids, and back-filled trenches at the site. JF - Abstracts with Programs - Geological Society of America AU - Conroy, James P AU - Daniels, Jeffrey J AU - Vendl, Mark A AU - Anonymous Y1 - 2000/03// PY - 2000 DA - March 2000 SP - 9 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 4 SN - 0016-7592, 0016-7592 KW - United States KW - Illinois KW - geophysical surveys KW - ground-penetrating radar KW - geophysical methods KW - characterization KW - radar methods KW - pollution KW - environmental analysis KW - urban environment KW - Chicago Illinois KW - land management KW - electromagnetic methods KW - surveys KW - brownfields KW - electromagnetic induction KW - Cook County Illinois KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52177794?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Analysis+of+multi-component+ground+penetrating+radar+data+from+a+brownfield+site+in+Chicago%2C+Illinois&rft.au=Conroy%2C+James+P%3BDaniels%2C+Jeffrey+J%3BVendl%2C+Mark+A%3BAnonymous&rft.aulast=Conroy&rft.aufirst=James&rft.date=2000-03-01&rft.volume=32&rft.issue=4&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, North-Central Section, 34th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - brownfields; characterization; Chicago Illinois; Cook County Illinois; electromagnetic induction; electromagnetic methods; environmental analysis; geophysical methods; geophysical surveys; ground-penetrating radar; Illinois; land management; pollution; radar methods; surveys; United States; urban environment ER - TY - JOUR T1 - The use of cardiac monitoring in the assessment of mercury toxicity in the subtropical pebble crab Gaetice depressus (Brachyura: Grapsidae: Varuninae) AN - 18865143; 5678894 AB - Heart rates were monitored in the pebble crab, Gaetice depressus using a non-invasive, computer aided cardiac monitoring system. A high degree of intra- and interindividual variability was observed, as was the presence of endogenous circatidal and circadian rhythms. Both acute and sublethal toxicities of mercury were determined. LC50's (96) for mercury were between 0.16-0.20 mg l-1. Exposure to HgCl2 above LC50 (96) (0.3 mg Hg l-1) resulted in rapid and statictically significant increases in heart rate whereas exposure to a concentration lower than LC50 (96) (0.1 mg Hg l-1) resulted in progressive reduction in heart rate similar to that of control crabs. JF - Scientia Marina (Barcelona) AU - Aagaard, A AU - Styrishave, B AU - Warman, C AU - Depledge, M AD - Danish Environmental Protection Agency, Strandgade 29, DK-1401 Copenhagen, Denmark Y1 - 2000/03// PY - 2000 DA - March 2000 SP - 381 EP - 386 PB - Instituto de Ciencias del Mar de Barcelona, Passeig Marítim de la Barceloneta 37-49 Barcelona E-08003 Spain VL - 64 IS - 4 SN - 0214-8358, 0214-8358 KW - Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Toxicology Abstracts KW - Heart KW - Heavy metals KW - Heart rate KW - Pollution effects KW - Toxicity tests KW - Bioaccumulation KW - Lethal limits KW - Sublethal effects KW - Mercury KW - Frequency KW - Toxicity testing KW - Gaetice depressus KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - Q5 08504:Effects on organisms KW - X 24161:Acute exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18865143?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Scientia+Marina+%28Barcelona%29&rft.atitle=The+use+of+cardiac+monitoring+in+the+assessment+of+mercury+toxicity+in+the+subtropical+pebble+crab+Gaetice+depressus+%28Brachyura%3A+Grapsidae%3A+Varuninae%29&rft.au=Aagaard%2C+A%3BStyrishave%2C+B%3BWarman%2C+C%3BDepledge%2C+M&rft.aulast=Aagaard&rft.aufirst=A&rft.date=2000-03-01&rft.volume=64&rft.issue=4&rft.spage=381&rft.isbn=&rft.btitle=&rft.title=Scientia+Marina+%28Barcelona%29&rft.issn=02148358&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Heart; Bioaccumulation; Lethal limits; Sublethal effects; Pollution effects; Mercury; Frequency; Toxicity tests; Heavy metals; Heart rate; Toxicity testing; Gaetice depressus ER - TY - JOUR T1 - Interactions of chlorpyrifos and methyl mercury: a mechanistic approach to assess chemical mixtures. AN - 18082264; 5147638 AB - The mechanism of interaction between chlorpyrifos, an organophosphate insecticide, and methyl mercury was assessed utilizing the amphipod, Hyalella azteca. Previous studies have demonstrated that chlorpyrifos and methyl mercury interact additively with survival as the endpoint. In addition, exposure to chlorpyrifos and methyl mercury increased the accumulation and decreased the elimination of methyl mercury. To further examine the mechanism responsible for these interactions, the in vivo and in vitro inhibition of acetylcholinesterase enzyme activity was assessed following exposure to methyl mercury and chlorpyrifos. In vivo, methyl mercury antagonized the effects of chlorpyrifos on acetylcholineterase inhibition. Additional studies demonstrated that methyl mercury did not affect the in vitro bioactivation of chlorpyrifos or the subsequent inhibition of acetylcholinesterase enzyme activity. Chemical-chemical interactions were examined utilizing chromatographic techniques and suggested the formation of a chlorpyrifos-methyl mercury complex. The formation of this complex may result in increased accumulation of methyl mercury, apparent additive toxicity, and protection against chlorpyrifos-mediated acetylcholinesterase inhibition. JF - Marine Environmental Research AU - Steevens, JA AU - Benson, W H AD - US EPA, NHEERL, Gulf Ecology Division 1 Sabine Island, Gulf Breeze, FL 32561 USA, benson.william@epa.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 113 EP - 117 VL - 50 IS - 1-5 SN - 0141-1136, 0141-1136 KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Hyalella azteca KW - Marine KW - Methyl mercury KW - Insecticides KW - Interactions KW - Neurotransmitters KW - Enzyme inhibitors KW - Q5 08503:Characteristics, behavior and fate KW - Q1 08286:Physiology, biochemistry, biophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18082264?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Environmental+Research&rft.atitle=Interactions+of+chlorpyrifos+and+methyl+mercury%3A+a+mechanistic+approach+to+assess+chemical+mixtures.&rft.au=Steevens%2C+JA%3BBenson%2C+W+H&rft.aulast=Steevens&rft.aufirst=JA&rft.date=2000-03-01&rft.volume=50&rft.issue=1-5&rft.spage=113&rft.isbn=&rft.btitle=&rft.title=Marine+Environmental+Research&rft.issn=01411136&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Methyl mercury; Insecticides; Interactions; Neurotransmitters; Enzyme inhibitors; Hyalella azteca; Marine ER - TY - JOUR T1 - Wetland plant seedlings as indicators of near-coastal sediment quality: interspecific variation. AN - 18075722; 5147739 AB - The toxicities of whole sediments collected from an urbanized Florida bayou-estuary were determined for the epibenthic mysid, Mysidopsia bahia, and the infaunal amphipod, Ampelisca abdita. In addition, the phytotoxicities of the same sediments were evaluated using rooted macrophytes, Scirpus robustus Pursh and Spartina alterniflora Loisel. The results of the 24 bioassays conducted for 7-28 days, were compared for interspecific differences. Toxicity to the benthic invertebrate species was predicted to be likely in all cases, based on comparison to effects-based sediment quality assessment guidelines. However, acute toxicity was uncommon and occurred at only one of the six sampling stations. In contrast, several sediments were either significantly phytostimulatory or phytoinhibitory (P <0.05) relative to a reference estuarine sediment. The results show the importance of considering interspecific variation and phytoassessment in contaminated sediment evaluations. Phytoassessment, the focus of this research, provided useful information that would have been missing if only the animal test species were used. For this reason, the phytotoxicity data base needs to be increased to better evaluate the relevance of most current contaminated sediment evaluations for coastal areas and also to determine the realism of propose numerical sediment quality assessment guidelines and criteria. JF - Marine Environmental Research AU - Lewis, MA AU - Weber, DE AU - Stanley, R S AD - National Health and Environmental Effects Research Laboratory, Gulf Ecology Division, US Environmental Protection Agency Gulf Breeze, FL 32561-5299 USA, lewis.michael@epa.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 535 EP - 540 VL - 50 IS - 1-5 SN - 0141-1136, 0141-1136 KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - Scirpus robustus KW - ASW, USA, Florida KW - Sediment pollution KW - Mysidopsis bahia KW - Sparus aurata KW - Ampelisca abdita KW - Aquatic plants KW - Brackish KW - Wetlands KW - Estuarine sedimentation KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18075722?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Environmental+Research&rft.atitle=Wetland+plant+seedlings+as+indicators+of+near-coastal+sediment+quality%3A+interspecific+variation.&rft.au=Lewis%2C+MA%3BWeber%2C+DE%3BStanley%2C+R+S&rft.aulast=Lewis&rft.aufirst=MA&rft.date=2000-03-01&rft.volume=50&rft.issue=1-5&rft.spage=535&rft.isbn=&rft.btitle=&rft.title=Marine+Environmental+Research&rft.issn=01411136&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Aquatic plants; Wetlands; Estuarine sedimentation; Scirpus robustus; Mysidopsis bahia; Sparus aurata; Ampelisca abdita; ASW, USA, Florida; Brackish ER - TY - JOUR T1 - Use of periphyton assemblage data as an index of biotic integrity AN - 17684728; 4714750 AB - Periphyton assemblage data collected from 233 stream site-visits (49 in 1993, 56 in 1994, and 128 in 1995) throughout the Mid-Appalachian region were used to develop a periphyton index of biotic integrity (PIBI) based on 1) algal genera richness; 2) the relative abundances of diatoms, Cyanobacteria, dominant diatom genus, acidophilic diatoms, eutraphentic diatoms, and motile diatoms; 3) chlorophyll and biomass (ash-free dry mass) standing crops; and 4) alkaline phosphatase activity. Thirty-seven diatom genera and 38 non-diatom genera were collected. The relative richness and relative abundance (RA) of these genera were used to calculate the RA metrics of the PIBI. PIBI scores ranged from 48.0 to 85.1 among the 233 site-visits with an overall regional mean ( plus or minus 1 SE) of 66.1 plus or minus 0.5. The 10 metrics and the PIBI were correlated with 27 chemical, 12 physical habitat, and 3 landscape variables. Overall, PIBI was inversely correlated with stream depth, stream water color, and Fe. Component metrics were significantly correlated with several chemical (Al, acid neutralizing capacity, Cl, Fe, Mn, N, Na, P pH, Si, SO sub(4), total suspended solids), physical habitat (channel embeddedness, riparian disturbances, stream depth, stream width, substrate composition), and landscape (% of the watershed in forest, agriculture, and urban land uses) variables. Canonical correlation analysis revealed significant correlations between the 10 PIBI metrics and 4 significant environmental gradients related to general human disturbances (stream acidity, stream substrate composition, and stream and riparian habitat). Analysis of variance revealed significant differences in PIBI scores for lowland vs highland streams, and among stream orders. Annual differences were explained by differences in the proportions of sampling sites in lowland streams in each year. The univariate distribution of PIBI scores was used to set threshold PIBI values for the assessment of ecological condition in Mid-Appalachian streams. JF - Journal of the North American Benthological Society AU - Hill, B H AU - Herlihy, A T AU - Kaufmann, PR AU - Stevenson, R J AU - McCormick, F H AU - Johnson, C B AD - National Exposure Research Laboratory, US Environmental Protection Agency, 26 W. Martin Luther King Drive, Cincinnati, OH 45268, USA, hill.brian@epa.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 50 EP - 67 VL - 19 IS - 1 SN - 0887-3593, 0887-3593 KW - USA KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Rivers KW - Water depth KW - Water colour KW - Physicochemical properties KW - Abundance KW - Bacillariophyceae KW - Anthropogenic factors KW - Man-induced effects KW - Streams KW - Community composition KW - USA, Appalachian Mts. KW - Species diversity KW - Periphyton KW - Cyanophyta KW - Iron KW - Species richness KW - Q1 08462:Benthos KW - D 04001:Methodology - general KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17684728?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+North+American+Benthological+Society&rft.atitle=Use+of+periphyton+assemblage+data+as+an+index+of+biotic+integrity&rft.au=Hill%2C+B+H%3BHerlihy%2C+A+T%3BKaufmann%2C+PR%3BStevenson%2C+R+J%3BMcCormick%2C+F+H%3BJohnson%2C+C+B&rft.aulast=Hill&rft.aufirst=B&rft.date=2000-03-01&rft.volume=19&rft.issue=1&rft.spage=50&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+North+American+Benthological+Society&rft.issn=08873593&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Water depth; Rivers; Water colour; Community composition; Abundance; Physicochemical properties; Species diversity; Anthropogenic factors; Man-induced effects; Periphyton; Iron; Streams; Species richness; Bacillariophyceae; Cyanophyta; USA, Appalachian Mts. ER - TY - JOUR T1 - A synoptic assessment for prioritizing wetland restoration efforts to optimize flood attenuation AN - 17596631; 4700864 AB - The placement of wetland restoration projects in a landscape to optimize the functional performance of wetlands on a regional scale is often overlooked. To address this problem, the U.S. Environmental Protection Agency's Landscape Function Project developed the synoptic approach to assign restoration priority to landscape subunits according to selected functional criteria. The approach provides a flexible, ecologically-based framework for allocating limited restoration-resources and preserving valued wetland functions on a landscape scale. We conducted a synoptic assessment of the Prairie Pothole Region of the north-central U.S. to demonstrate application of the method for our assessment criterion - the marginal decrease in total downstream flood volume per restoration dollar. A criterion is often not directly measurable but can be represented by an index composed of measurements on related variables. In a synoptic assessment, these measured variables, referred to as indicators, are limited to variables for which data are existing, accessible, and uniformly available for the entire region. We developed a conceptual model to guide the development of an index of the assessment criterion. We then ranked landscape subunits based on index values and mapped the ranks to show relative priority for restoration among landscape subunits. We conducted a series of analyses to justify selection of indicators and some of our assumptions. The approach offers multiple options for processing and displaying information for use by wetland managers. JF - Wetlands AU - McAllister, L S AU - Peniston, B E AU - Leibowitz, S G AU - Abbruzzese, B AU - Hyman, J B AD - Dynamac Corporation, U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, 200 SW 35th Street, Corvallis, OR 97333, USA, mcallist@mail.cor.epa.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 70 EP - 83 VL - 20 IS - 1 SN - 0277-5212, 0277-5212 KW - USA, North Central KW - USA, Prairie Pothole Region KW - Aqualine Abstracts; Ecology Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Pollution Abstracts KW - Flood control KW - Indicators KW - Freshwater KW - Prairies KW - Renovation KW - Assessments KW - Regional planning KW - Wetlands KW - Mapping KW - Rehabilitation KW - Maps and mapping KW - Potholes KW - Flood Control KW - USA KW - Flood plains KW - Synoptic Analysis KW - Flooding KW - Priorities KW - Environmental restoration KW - Environment management KW - Optimization KW - AQ 00001:Water Resources and Supplies KW - P 9000:ENVIRONMENTAL ACTION KW - Q2 09123:Conservation KW - SW 0835:Streamflow and runoff KW - D 04200:Wetlands KW - Q5 08522:Protective measures and control KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17596631?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wetlands&rft.atitle=A+synoptic+assessment+for+prioritizing+wetland+restoration+efforts+to+optimize+flood+attenuation&rft.au=McAllister%2C+L+S%3BPeniston%2C+B+E%3BLeibowitz%2C+S+G%3BAbbruzzese%2C+B%3BHyman%2C+J+B&rft.aulast=McAllister&rft.aufirst=L&rft.date=2000-03-01&rft.volume=20&rft.issue=1&rft.spage=70&rft.isbn=&rft.btitle=&rft.title=Wetlands&rft.issn=02775212&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Flood control; Flood plains; Regional planning; Wetlands; Environment management; Flooding; Environmental restoration; Renovation; Indicators; Maps and mapping; Optimization; Flood Control; Prairies; Assessments; Rehabilitation; Synoptic Analysis; Priorities; Mapping; Potholes; USA; Freshwater ER - TY - JOUR T1 - Use of toxicity identification evaluation methods to characterize, identify, and confirm hexavalent chromium toxicity in an industrial effluent AN - 17592114; 4707433 AB - A toxicity identification evaluation (TIE) was conducted on effluent from a major industrial discharger. Although initial monitoring typically showed only slight, intermittent, chronic toxicity to Ceriodaphnia dubia, a later sample showed substantial acute toxicity to C. dubia (48-h (LC sub(50) = 9%). Acute phase I toxicity characterization tests were conducted on this acutely toxic sample; none of the phase I manipulations reduced sample toxicity. The toxic effluent sample was then treated with activated carbon, and cation, anion, and mixed-bed ion exchange. Acute toxicity was not reduced by treatment with activated carbon or cation exchange, but was completely removed by anion and mixed-bed ion exchange. Based on these data, we concluded that the causative toxicant(s) was likely an inorganic anion(s); chemical analysis detected hexavalent chromium (Cr[VI]) at concentrations sufficient to account for the observed acute toxicity. Although Cr[VI] could clearly explain the presence of acute toxicity, subsequent confirmation testing was designed to determine whether Cr[IV] was responsible for the low-level chronic toxicity more typical of the effluent. Concurrent chronic tests conducted on unaltered and anion-exchanged effluent showed that the presence of chronic toxicity was associated with chronically toxic concentrations of Cr[VI]. The source of Cr[VI] in the effluent was traced to a malfunctioning heat exchanger; after this malfunction was corrected, neither chronic toxicity nor appreciable Cr[VI] was observed in the effluent again. JF - Water Research AU - Mount AU - Hockett, J R AD - U.S. Environmental Protection Agency, 6201 Congdon Boulevard, Duluth, MN 55804, USA Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 1379 EP - 1385 VL - 34 IS - 4 SN - 0043-1354, 0043-1354 KW - cladocerans KW - Ceriodaphnia dubia KW - Pollution Abstracts; Aqualine Abstracts; Toxicology Abstracts; Water Resources Abstracts KW - Bioassay KW - Heat exchangers KW - Ion Exchange KW - Ion exchange KW - Industrial effluents KW - Chromium KW - Industrial Wastewater KW - Aurelia KW - Toxicity KW - Effluents KW - Effluent KW - Industrial waste waters KW - Toxicity (see also Lethal limits) KW - Toxicity testing KW - P 3000:SEWAGE & WASTEWATER TREATMENT KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution KW - X 24221:Toxicity testing KW - P 6000:TOXICOLOGY AND HEALTH KW - X 24161:Acute exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17592114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Research&rft.atitle=Use+of+toxicity+identification+evaluation+methods+to+characterize%2C+identify%2C+and+confirm+hexavalent+chromium+toxicity+in+an+industrial+effluent&rft.au=Mount%3BHockett%2C+J+R&rft.aulast=Mount&rft.aufirst=&rft.date=2000-03-01&rft.volume=34&rft.issue=4&rft.spage=1379&rft.isbn=&rft.btitle=&rft.title=Water+Research&rft.issn=00431354&rft_id=info:doi/10.1016%2FS0043-1354%2899%2900271-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ceriodaphnia dubia; Toxicity; Chromium; Industrial Wastewater; Effluents; Ion Exchange; Bioassay; Toxicity (see also Lethal limits); Industrial waste waters; Effluent; Ion exchange; Aurelia; Industrial effluents; Toxicity testing; Heat exchangers DO - http://dx.doi.org/10.1016/S0043-1354(99)00271-7 ER - TY - JOUR T1 - Nitrification in the water column and sediment of a hypereutrophic lake and adjoining river system AN - 17591946; 4707418 AB - Nitrification in lakes and rivers is usually modeled using first-order water column kinetics. Over the years, a number of scientists have, however, recognized the importance of sediment nitrification, especially in shallow systems. The aim of this study is to determine the extent of nitrification in the water column and sediments of a eutrophic system and to propose simple kinetic equations to describe the process. An intensive experimental study was performed (summer and fall 1992, fall 1993) on Onondaga Lake and the adjoining Seneca River, a hypereutrophic system with high ammonia concentrations (2-10 mgN l super(-1)). Water samples and sediment cores were collected and laboratory nitrification studies performed. The results clearly demonstrate that there is rapid nitrification in the sediments of both Onondaga Lake (0.37 gN m super(-2) d super(-1)) and the Seneca River (0.32 gN m super(-2) d super(-1)). In contrast, no apparent nitrification was observed in the water column of the lake or river, despite high ammonia concentrations. The findings of the Most Probable Number (MPN) test provide a likely reason for this phenomenon, showing that the lack of nitrification in the water column is probably due to low nitrifier densities ( similar to 10 super(1) cells ml super(-1)), whereas the rate is rapid in the sediments due to high nitrifier populations ( similar to 10 super(5) cells ml super(-1)). It is therefore believed that nitrification in this relatively deep system is localized to the sediments and simple zero order kinetics is proposed as a first approach to model the process. It also stimulates the question of whether nitrification in most freshwater systems is principally a sediment process and should be modeled accordingly. JF - Water Research AU - Pauer, J J AU - Auer, M T AD - So Bran Inc., Large Lakes Research Station, 9311 Groh Road, Grosse Ile, MI 48138, USA, pauer.james@epa.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 1247 EP - 1254 VL - 34 IS - 4 SN - 0043-1354, 0043-1354 KW - USA, New York, Onondaga L. KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Rivers KW - Micro-organisms KW - USA, New York, Seneca R. KW - Mathematical Models KW - Eutrophic waters KW - River Systems KW - Ammonia KW - Nitrogen Cycle KW - Geochemistry KW - Eutrophic lakes KW - Sediment KW - Streams (in natural channels) KW - Sediments KW - Water column KW - Eutrophic Lakes KW - Nitrification KW - Microorganisms KW - Nitrogen KW - Q5 08503:Characteristics, behavior and fate KW - SW 0880:Chemical processes KW - Q2 09181:General KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17591946?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Research&rft.atitle=Nitrification+in+the+water+column+and+sediment+of+a+hypereutrophic+lake+and+adjoining+river+system&rft.au=Pauer%2C+J+J%3BAuer%2C+M+T&rft.aulast=Pauer&rft.aufirst=J&rft.date=2000-03-01&rft.volume=34&rft.issue=4&rft.spage=1247&rft.isbn=&rft.btitle=&rft.title=Water+Research&rft.issn=00431354&rft_id=info:doi/10.1016%2FS0043-1354%2899%2900258-4 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Nitrification; Eutrophic lakes; Water column; Sediments; Micro-organisms; Eutrophic waters; Ammonia; Geochemistry; Sediment; Streams (in natural channels); Nitrogen; Mathematical Models; River Systems; Nitrogen Cycle; Microorganisms; Eutrophic Lakes; USA, New York, Seneca R. DO - http://dx.doi.org/10.1016/S0043-1354(99)00258-4 ER - TY - JOUR T1 - Personal Exposure to JP-8 Jet Fuel Vapors and Exhaust at Air Force Bases AN - 17543220; 4729338 AB - JP-8 jet fuel (similar to commercial/international jet A-1 fuel) is the standard military fuel for all types of vehicles, including the U.S. Air Force aircraft inventory. As such, JP-8 presents the most common chemical exposure in the Air Force, particularly for flight and ground crew personnel during preflight operations and for maintenance personnel performing routine tasks. Personal exposure at an Air Force base occurs through occupational exposure for personnel involved with fuel and aircraft handling and/or through incidental exposure, primarily through inhalation of ambient fuel vapors. Because JP-8 is less volatile than its predecessor fuel (JP-4), contact with liquid fuel on skin and clothing may result in prolonged exposure. The slowly evaporating JP-8 fuel tends to linger on exposed personnel during their interaction with their previously unexposed colleagues. To begin to assess the relative exposures, we made ambient air measurements and used recently developed methods for collecting exhaled breath in special containers. We then analyzed for certain volatile marker compounds for JP-8, as well as for some aromatic hydrocarbons (especially benzene) that are related to long-term health risks. Ambient samples were collected by using compact, battery-operated, personal whole-air samplers that have recently been developed as commercial products; breath samples were collected using our single-breath canister method that uses 1-L canisters fitted with valves and small disposable breathing tubes. We collected breath samples from various groups of Air Force personnel and found a demonstrable JP-8 exposure for all subjects, ranging from slight elevations as compared to a control cohort to > 100 x the control values. This work suggests that further studies should be performed on specific issues to obtain pertinent exposure data. The data can be applied to assessments of health outcomes and to recommendations for changes in the use of personal protective equipment that optimize risk reduction without undue impact on a mission. JF - Environmental Health Perspectives AU - Pleil, J D AU - Smith, L B AU - Zelnick, S D AD - U.S. Environmental Protection Agency (EPA), NERL (MD-44), S-239C Environmental Research Center Annex, 79 Alexander Drive, Research Triangle Park, NC 27711 USA, pleil.joachim@epamail.epa.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 183 EP - 192 VL - 108 IS - 3 SN - 0091-6765, 0091-6765 KW - man KW - Toxicology Abstracts; Health & Safety Science Abstracts; Pollution Abstracts KW - Risk assessment KW - Combustion products KW - Fuels KW - Benzene KW - Vapors KW - Aircraft KW - Military KW - Occupational exposure KW - Exhaust emissions KW - Air pollution KW - Military personnel KW - H 1000:Occupational Safety and Health KW - P 6000:TOXICOLOGY AND HEALTH KW - X 24152:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17543220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Health+Perspectives&rft.atitle=Personal+Exposure+to+JP-8+Jet+Fuel+Vapors+and+Exhaust+at+Air+Force+Bases&rft.au=Pleil%2C+J+D%3BSmith%2C+L+B%3BZelnick%2C+S+D&rft.aulast=Pleil&rft.aufirst=J&rft.date=2000-03-01&rft.volume=108&rft.issue=3&rft.spage=183&rft.isbn=&rft.btitle=&rft.title=Environmental+Health+Perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Air pollution; Aircraft; Vapors; Occupational exposure; Military; Exhaust emissions; Fuels; Combustion products; Military personnel; Benzene; Risk assessment ER - TY - JOUR T1 - Sensitivity Analysis of a Physiological Model for 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD): Assessing the Impact of Specific Model Parameters on Sequestration in Liver and Fat in the Rat AN - 17535437; 4721944 AB - 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) has dose-dependent tissue distribution because of induction of CYP1A2, a TCDD-binding protein, in the liver. Induction requires transcriptional activation of the CYP1A2 gene product by TCDD and the Ah receptor. An empirical model for dose- dependent distribution included two simple descriptors: one for the maximum liver sequestration (Fmax) and the other for body burden leading to half maximum sequestration (Kd). Physiologically based pharmacokinetic (PBPK) models include specific parameters for protein receptors, protein binding, tissue solubility, and protein induction. We have applied a PBPK model to define two macroscopic constants related to these dose-response curves, i.e., the inflection point, and the maximum values of these curves. The dose-response curves generated from the PBPK model were for the proportion sequestered in liver and the liver to fat concentration ratio. Our analysis assessed the specific biological factors in the PBPK model that governed the values of these two macroscopic constants. For the fraction in liver, the Hill coefficient (a shape exponent describing the relationship between the Ah receptor-TCDD complex with the DNA receptor) resulted in the largest shift in inflection when using PBPK model parameters specific for TCDD. For the liver to fat ratio, the inflection point was most affected by the number of available Ah receptors. Conventional normalized sensitivity coefficients for the liver-to-fat ratio at the maximum were highest for the fat-to-blood partition coefficient, CYP1A2 binding affinity, and maximum extent of induction of CYP1A2. A similar pattern was observed for the liver fraction, except that the sensitivity coefficients were much smaller. The behavior of different TCDD congeners was evaluated by altering the value of key parameters. Our results demonstrate that the inflection point is more related to characteristics of DNA binding/induction steps of the Ah receptor-DNA complex than by the CYP1A2 affinity of TCDD or concentrations of CYP1A2. Surprisingly, the maximum is more sensitive to changes in CYP1A2 concentrations and affinity for TCDD. In addition, the analysis showed that the liver-to-fat ratio is a more useful experimental measure than is proportion in liver because the ratio responds with similar sensitivity over a much wider range of input parameters. JF - Toxicological Sciences AU - Evans, M V AU - Andersen, ME AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Research Triangle Park, NC 27711, USA Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 71 EP - 80 VL - 54 IS - 1 SN - 1096-6080, 1096-6080 KW - binding KW - CYP1A2 protein KW - double prime Ah receptors KW - Toxicology Abstracts KW - ^AAh receptors KW - Liver KW - Proteins KW - TCDD KW - Body fat KW - Aryl hydrocarbon receptors KW - X 24153:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17535437?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Sensitivity+Analysis+of+a+Physiological+Model+for+2%2C3%2C7%2C8-Tetrachlorodibenzo-p-dioxin+%28TCDD%29%3A+Assessing+the+Impact+of+Specific+Model+Parameters+on+Sequestration+in+Liver+and+Fat+in+the+Rat&rft.au=Evans%2C+M+V%3BAndersen%2C+ME&rft.aulast=Evans&rft.aufirst=M&rft.date=2000-03-01&rft.volume=54&rft.issue=1&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Body fat; TCDD; Liver; Aryl hydrocarbon receptors; Proteins ER - TY - JOUR T1 - Estrogenic Activity of Octylphenol, Nonylphenol, Bisphenol A and Methoxychlor in Rats AN - 17533793; 4721953 AB - Considerable attention has recently been focused on environmental chemicals that disrupt the reproductive system by altering steroid receptor function. Although numerous in vitro and in vivo methods have been shown to be useful approaches for identifying chemicals that can disrupt reproduction through a direct interaction with the estrogen receptor, it is imperative that the protocols selected be capable of detecting chemicals with a broad range of estrogenic activity. Here we evaluate the reliability of the 3-day uterotrophic assay for detecting chemicals with strong or weak estrogenic activity in both prepubertal and ovariectomized adult Long Evans rats. These data were compared to additional measures of estrogenic activity, which included the age of vaginal opening, the induction of cornified vaginal epithelial cells in ovariectomized adult rats, and estrous cyclicity in intact adult rats. Test chemicals selected for these studies included 17- beta -estradiol, ethynyl estradiol, methoxychlor, 4-tert-octylphenol, 4-nonylphenol and bisphenol A. Data from in vitro receptor binding assays compared the ability of the test chemicals to compete with [3H]-estradiol or [3H]-promegestone for binding to estrogen or progesterone receptors. As expected, the binding affinities for the estrogen receptor ranged from high to low, as reflected by Ki concentrations of 0.4 nM for 17- beta -estradiol and ethynyl estradiol, and 0.05-65 mu M for 4-tert-octyphenol, 4-nonylphenol, and methoxychlor. Although none of the test chemicals demonstrated a high affinity for binding to the progesterone receptor, 4-tert-octylphenol and 4-nonylphenol exhibited a weak affinity, with Ki concentrations ranging from 1.2 to 3.8 mu M. In vivo studies indicated that the 3-day uterotrophic assay in prepubertal rats was the best method for detecting estrogenic activity when compared with all other end points, based upon the dose-response data for ethynyl estradiol (0.01-0.1 mg/kg), 4-tert-octylphenol (50-200 mg/kg, oral), and 4-nonylphenol (25-100 mg/kg, oral). Although oral doses of ethynyl estradiol (0.01 mg/kg) and 4-nonylphenol (50 mg/kg) induced a significant increase in uterine weight in the prepubertal rats, these doses were ineffective for stimulating a similar response in ovariectomized adult rats. The age of vaginal opening was advanced following oral exposure from postnatal days 21-35 to ethynyl estradiol (0.01 mg/kg), methoxychlor (50 mg/kg), 4-tert-octylphenol (200 mg/kg), and 4-nonylphenol (50 mg/kg). Although bisphenol A (200 mg/kg, oral) induced a significant uterotrophic response within 3 days in prepubertal rats, doses up to 400 mg/kg failed to advance the age of vaginal opening. Monitoring changes in the vaginal epithelium of ovariectomized adult rats was the least effective method for detecting estrogenic activity for 4-tert-octylphenol and bisphenol A. The number of 4-5 day estrous cycles was reduced during a 25-day exposure to ethynyl estradiol (0.01 mg/kg), methoxychlor (50 mg/kg), 4-tert-octylphenol (200 mg/kg), 4-nonylphenol (100 mg/kg), and bisphenol A (100 mg/kg) by oral gavage. Although long periods of extended diestrus (7-14 days) were generally correlated with exposure to ethynyl estradiol and 4-tert- octylphenol, the cycling patterns following exposure to methoxychlor, 4-nonylphenol and bisphenol A were not as clearly defined, with shorter periods of extended diestrus (4-7 days) and/or estrus (3-5 days) intermittently observed throughout the exposure period. Together these data provide a comparison of the 3-day uterotrophic assay with alternative measures of estrogenic activity for a group of test chemicals with a broad range of affinities estrogen receptor. These data can be useful during the assessment and validation of methods for screening enviromnental chemicals for endocrine disrupting activity. JF - Toxicological Sciences AU - Laws, S C AU - Carey, SA AU - Ferrell, J M AU - Bodman, G J AU - Cooper, R L AD - Endocrinology Branch, Reproductive Toxicology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 154 EP - 167 VL - 54 IS - 1 SN - 1096-6080, 1096-6080 KW - rats KW - screening KW - endocrine system KW - octylphenol KW - Toxicology Abstracts KW - Bisphenol A KW - Estrogens KW - Methoxychlor KW - Nonyl phenol KW - Hormones KW - Estrus cycle KW - X 24155:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17533793?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Estrogenic+Activity+of+Octylphenol%2C+Nonylphenol%2C+Bisphenol+A+and+Methoxychlor+in+Rats&rft.au=Laws%2C+S+C%3BCarey%2C+SA%3BFerrell%2C+J+M%3BBodman%2C+G+J%3BCooper%2C+R+L&rft.aulast=Laws&rft.aufirst=S&rft.date=2000-03-01&rft.volume=54&rft.issue=1&rft.spage=154&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bisphenol A; Methoxychlor; Nonyl phenol; Estrogens; Hormones; Estrus cycle ER - TY - JOUR T1 - Effects of measurement frequency on water-level summary statistics AN - 17512418; 4700870 AB - Wetland scientists and managers recognize the need to characterize hydrology for understanding wetland ecosystems. Hydrologic data, however, are not routinely collected in wetlands, in part because of a lack of knowledge about how to effectively measure hydrologic attributes and how frequently to measure water levels. To determine how measurement interval affects interpretation of water-level data, we analyzed data from seven wetlands in Oregon and Pennsylvania. We created subsets of daily data for each wetland, with measurement intervals of 2 to 28 days, then compared those subsets to the daily data for annual water-level summary statistics, monthly mean water levels, and occurrence/duration of threshold conditions (e.g., water in the root zone). Our primary goal was to determine if sampling at low frequencies can provide representative water-level data and accurate perceptions of the occurrence of water levels above thresholds. For annual water-level distributions, small data sets from 28-day measurement intervals provided summary data (e.g., median, quartiles, range) comparable to the 1-day reference data. For measurement intervals of seven days or less, average errors in estimates of stage (minimum, 25th, 50th, and 75th percentiles) were less than or equal to 0.03 m; for a 28-day interval, average errors were <0.05 m. Errors in estimates of maximum stage were considerably larger (0.11 m and 0.21 m for 7- and 28-day intervals, respectively) but can be circumvented using crest gauges. Errors in estimates of monthly mean stage varied greatly with measurement frequency (1-4% error for 7-day intervals, 5-15% error using one measurement per month), among wetlands and from month to month. Water-level durations above threshold values were problematic; for measurement intervals of 2 days and longer, 14-day exceedances of water in the root zone were frequently missed or spurious exceedance periods were identified. Overall, results show that sampling at monthly intervals, supplemented with crest gauges, provides a representative description of annual water-level distributions for use in classifying and comparing wetlands. More frequent sampling is required to characterize water levels for shorter (e.g., monthly) time periods and to reliably identify exceedance periods for water above threshold levels. More generally, the results remind us that the frequency and duration of sampling in hydrologic studies must be designed to ensure that data will support planned analyses. JF - Wetlands AU - Shaffer, P W AU - Cole, CA AU - Kentula, ME AU - Brooks, R P AD - Dynamac Corporation Environmental Services, 200 SW 35th Street, Corvallis, OR 97333, USA, shaffer@mail.cor.epa.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 148 EP - 161 VL - 20 IS - 1 SN - 0277-5212, 0277-5212 KW - USA, Oregon KW - USA, Pennsylvania KW - Aqualine Abstracts; Water Resources Abstracts KW - Statistics KW - Water level KW - Error Analysis KW - Estimating KW - Data collections KW - Water Level KW - Comparative studies KW - Classification KW - Comparison Studies KW - Wetlands KW - Sampling KW - Monthly Distribution KW - Data Collections KW - SW 5010:Network design KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17512418?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wetlands&rft.atitle=Effects+of+measurement+frequency+on+water-level+summary+statistics&rft.au=Shaffer%2C+P+W%3BCole%2C+CA%3BKentula%2C+ME%3BBrooks%2C+R+P&rft.aulast=Shaffer&rft.aufirst=P&rft.date=2000-03-01&rft.volume=20&rft.issue=1&rft.spage=148&rft.isbn=&rft.btitle=&rft.title=Wetlands&rft.issn=02775212&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Water Level; Statistics; Sampling; Error Analysis; Estimating; Wetlands; Classification; Comparison Studies; Monthly Distribution; Data Collections; USA, Oregon; USA, Pennsylvania; Water level; Comparative studies; Data collections ER - TY - JOUR T1 - Photogeneration of singlet oxygen and free radicals in dissolved organic matter isolated from the Mississippi and Atchafalaya River plumes AN - 17502284; 4687147 AB - The photoreactivity to UV light of ultrafiltered dissolved organic matter (DOM) collected during cruises along salinity transects in the Mississippi and Atchafalaya River plumes was examined by measuring photogenerated free radicals and singlet molecular oxygen ( super(1) O sub(2) ) photosensitization. Singlet oxygen was detected by its infrared phosphorescence at 1270 nm using both steady-state and time-resolved techniques. The super(1) O sub(2) quantum yields were corrected for self-quenching of super(1) O sub(2) by the DOM substrates. Photogenerated free radicals were monitored by electron paramagnetic resonance (EPR). Two size fractions of the dissolved organic matter were examined: material retained with a 3 kDa cut-off filter and material retained with a 1 kDa cut-off filter. The highest super(1) O sub(2) quantum yields were found in the lower molecular mass material. There was little change in the super(1) O sub(2) quantum yields with increasing salinity, indicating that the photosensitizing ability of the estuarine DOM does not decrease as terrestrial DOM is transported to sea and mixes with marine DOM. In contrast to super(1) O sub(2) formation, the steady-state levels of photoproduced free radicals did not significantly differ between high and low molecular mass DOM, and the levels were substantially higher in riverine DOM than along plume salinity transects. This rapid transition in free radical level suggests that terrestrially-derived DOM experiences significant changes in this aspect of its photoreactivity in low (<10 ppt) salinity waters. JF - Marine Chemistry AU - Sandvik, SLH AU - Bilski, P AU - Pakulski, J D AU - Chignell, C F AU - Coffin, R B AD - National Research Council Fellow, U.S. Environmental Protection Agency Gulf Breeze, FL USA Y1 - 2000/03/01/ PY - 2000 DA - 2000 Mar 01 SP - 139 EP - 152 PB - Elsevier VL - 69 IS - 1-2 SN - 0304-4203, 0304-4203 KW - Free radicals KW - USA, Louisiana, Atchafalaya Bay KW - USA, Louisiana, Mississippi Estuary KW - free radicals KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Oceanic Abstracts KW - Photochemistry KW - Marine KW - River Wash KW - Phosphorescence KW - Chemical oceanography KW - ASW, USA, Louisiana, Mississippi Estuary KW - Ultraviolet Radiation KW - Light effects KW - Oxygen KW - Organic Matter KW - River plumes KW - Dissolved organic matter KW - Ultraviolet radiation KW - Plumes KW - ASW, USA, Louisiana, Atchafalaya Bay KW - Q2 09185:Organic compounds KW - SW 0835:Streamflow and runoff KW - O 2050:Chemical Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17502284?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Chemistry&rft.atitle=Photogeneration+of+singlet+oxygen+and+free+radicals+in+dissolved+organic+matter+isolated+from+the+Mississippi+and+Atchafalaya+River+plumes&rft.au=Sandvik%2C+SLH%3BBilski%2C+P%3BPakulski%2C+J+D%3BChignell%2C+C+F%3BCoffin%2C+R+B&rft.aulast=Sandvik&rft.aufirst=SLH&rft.date=2000-03-01&rft.volume=69&rft.issue=1-2&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Marine+Chemistry&rft.issn=03044203&rft_id=info:doi/10.1016%2FS0304-4203%2899%2900101-2 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Photochemistry; Oxygen; River plumes; Phosphorescence; Dissolved organic matter; Ultraviolet radiation; Chemical oceanography; Light effects; Organic Matter; River Wash; Plumes; Ultraviolet Radiation; ASW, USA, Louisiana, Mississippi Estuary; ASW, USA, Louisiana, Atchafalaya Bay; Marine DO - http://dx.doi.org/10.1016/S0304-4203(99)00101-2 ER - TY - JOUR T1 - Effects of storage on the toxicity of sediments spiked with fluoranthene to the amphipod, Rhepoxynius abronius AN - 17497020; 4689485 AB - To determine the effect of storage on contaminant bioavailability and toxicity, two sediment types, a fine sand and a silty sand, were spiked with nine concentrations of fluoranthene (0.0-50 mg/dry kg) then stored at 4 degree C for up to 170 d. Toxicity of the stored sediment was determined eight times during this storage interval using standard 10-d toxicity tests with the marine infaunal amphipod Rhepoxynius abronius. The concentrations of fluoranthene in the sediment and interstitial water were determined on samples taken on each test date, The toxicity of fluoranthene in the silty sand was similar for all storage times with LC50s ranging from 5.3 to 6.6 mg/g organic carbon (OC). The LC50 in the fine sand was 7.4 mg/g OC after 13 d of storage, ranged from 10.2 to 11.8 mg/g OC during 27 to 83 d of storage, and increased to 24,2 and 27.6 mg/g OC after 121 and 170 d of storage, respectively. These data indicate that the toxicity of both the fine and the silty sand remained essentially constant during storage from days 27 to 83. Toxicity tests conducted before or after that period may give misleading results because of disequilibrium or unknown storage effects. JF - Environmental Toxicology and Chemistry AU - Cole, F A AU - Boese, B L AU - Swartz, R C AU - Lamberson, JO AU - DeWitt, TH AD - U.S. Environmental Protection Agency, Western Ecology Division, Coastal Ecology Branch, 2111 S.E. Marine Science, Newport, OR 97365, USA, cole.faith@epamail.epa.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 744 EP - 748 VL - 19 IS - 3 SN - 0730-7268, 0730-7268 KW - Amphipoda KW - Rhepoxynius abronius KW - fluoranthene KW - Toxicology Abstracts; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Experimental Data KW - Fluoranthene KW - Sediment pollution KW - Storage effects KW - Amphipods KW - Organic Carbon KW - Pollution effects KW - Interstitial Water KW - Toxicity KW - Storage KW - Lethal Limit KW - Marine pollution KW - Sand KW - Storage conditions KW - Sediment Contamination KW - Marine organisms KW - Toxicity testing KW - X 24190:Polycyclic hydrocarbons KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17497020?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Effects+of+storage+on+the+toxicity+of+sediments+spiked+with+fluoranthene+to+the+amphipod%2C+Rhepoxynius+abronius&rft.au=Cole%2C+F+A%3BBoese%2C+B+L%3BSwartz%2C+R+C%3BLamberson%2C+JO%3BDeWitt%2C+TH&rft.aulast=Cole&rft.aufirst=F&rft.date=2000-03-01&rft.volume=19&rft.issue=3&rft.spage=744&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Storage effects; Pollution effects; Toxicity; Fluoranthene; Marine pollution; Storage conditions; Toxicity testing; Storage; Sand; Marine organisms; Experimental Data; Lethal Limit; Organic Carbon; Amphipods; Sediment Contamination; Interstitial Water ER - TY - JOUR T1 - Acute toxicity of para-nonylphenol to saltwater animals AN - 17496060; 4689469 AB - para-Nonylphenol (PNP), a mixture of alkylphenols used in producing nonionic surfactants, is distributed widely in surface waters and aquatic sediments, where it can affect saltwater species. This article describes a database for acute toxicity of PNP derived for calculating a national saltwater quality criterion. Using a flow-through exposure system with measured concentrations, we tested early life stages of four species of saltwater invertebrates and two species of fish. Static 96-h tests were also conducted on zoeal Homarus americanus, embryo-larval Mulinia lateralis, and larval Pleuronectes americanus. The number of organisms surviving the flow-through test was measured at 2, 4, 8, and 12 h and daily through day 7. Mortality for most species plateaued by 96 h. The ranked sensitivities (96-h 50% lethal concentrations, measured in micrograms per liter) for the species tested were 17 for Pleuronectes americanus, 37.9 (48-h 50% effective concentration) for Mulinia lateralis, 59.4 for Paleomonetes vulgaris, 60.6 for Americamysis bahia (formerly Mysidopsis bahia), 61.6 for Leptocheirus plumulosus, 70 for Menidia beryllina, 71 for Homarus americanus, 142 for Cyprinodon variegatus, and > 195 for Dyspanopius sayii. Values for the seven most sensitive of these species ranged over a factor of only 4.2. The narrow range of responses for PNP implies that exceeding a threshold concentration would endanger a large proportion of the aquatic community. JF - Environmental Toxicology and Chemistry AU - Lussier, S M AU - Champlin, D AU - LiVolsi, J AU - Poucher, S AU - Pruell, R J AD - U.S. Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA, lussier.suzanne@epa.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 617 EP - 621 VL - 19 IS - 3 SN - 0730-7268, 0730-7268 KW - Americamysis bahia KW - American lobster KW - Cyprinodon variegatus KW - Dwarf surfclam KW - Dyspanopius sayii KW - Homarus americanus KW - Leptocheirus plumulosus KW - Menidia beryllina KW - Mulinia lateralis KW - Paleomonetes vulgaris KW - Pleuronectes americanus KW - Winter flounder KW - acute toxicity KW - nonylphenol KW - Toxicology Abstracts; Pollution Abstracts; Water Resources Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Aquatic organisms KW - Pollution effects KW - Pisces KW - Salinity KW - Invertebrata KW - Toxicology KW - Marine KW - Mortality KW - Sediment pollution KW - Marine Animals KW - Brackish KW - Nonyl phenol KW - Phenols KW - Water pollution KW - Marine pollution KW - Lethal limits KW - Acute Toxicity KW - Water Pollution Effects KW - Fish KW - Toxicity testing KW - Surfactants KW - X 24151:Acute exposure KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17496060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Acute+toxicity+of+para-nonylphenol+to+saltwater+animals&rft.au=Lussier%2C+S+M%3BChamplin%2C+D%3BLiVolsi%2C+J%3BPoucher%2C+S%3BPruell%2C+R+J&rft.aulast=Lussier&rft.aufirst=S&rft.date=2000-03-01&rft.volume=19&rft.issue=3&rft.spage=617&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Lethal limits; Pollution effects; Surfactants; Toxicology; Water pollution; Aquatic organisms; Marine pollution; Nonyl phenol; Pisces; Mortality; Salinity; Invertebrata; Toxicity testing; Phenols; Acute Toxicity; Water Pollution Effects; Marine Animals; Fish; Marine; Brackish ER - TY - JOUR T1 - Effects of Whole Sediments from Corpus Christi Bay on Survival, Growth, and Reproduction of the Mysid, Americamysis bahia (Formerly Mysidopsis bahia) AN - 1439231872; 18619268 AB - Abstract not Available JF - Bulletin of Environmental Contamination and Toxicology AU - Cripe, G M AU - Carr, R S AU - Foss, S S AU - Harris, P S AU - Stanley, R S AD - U.S. Environmental Protection Agency, Gulf Ecology Division, 1 Sabine Island Drive, Gulf Breeze, FL 32561, USA , US Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 426 EP - 433 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 64 IS - 3 SN - 0007-4861, 0007-4861 KW - Pollution Abstracts; Environment Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Toxicology Abstracts KW - ASW, USA, Texas, Corpus Christi Bay KW - Mysidopsis bahia KW - Survival KW - Animal physiology KW - Population dynamics KW - Sediments KW - Americamysis bahia KW - Growth KW - Reproduction KW - Toxicology KW - Q5 08503:Characteristics, behavior and fate KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - P 1000:MARINE POLLUTION KW - ENA 12:Oceans & Estuaries KW - X 24360:Metals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1439231872?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.atitle=Effects+of+Whole+Sediments+from+Corpus+Christi+Bay+on+Survival%2C+Growth%2C+and+Reproduction+of+the+Mysid%2C+Americamysis+bahia+%28Formerly+Mysidopsis+bahia%29&rft.au=Cripe%2C+G+M%3BCarr%2C+R+S%3BFoss%2C+S+S%3BHarris%2C+P+S%3BStanley%2C+R+S&rft.aulast=Cripe&rft.aufirst=G&rft.date=2000-03-01&rft.volume=64&rft.issue=3&rft.spage=426&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.issn=00074861&rft_id=info:doi/10.1007%2Fs001280000018 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-10-01 N1 - Last updated - 2014-05-15 N1 - SubjectsTermNotLitGenreText - Survival; Animal physiology; Reproduction; Population dynamics; Toxicology; Sediments; Growth; Americamysis bahia; Mysidopsis bahia; ASW, USA, Texas, Corpus Christi Bay DO - http://dx.doi.org/10.1007/s001280000018 ER - TY - JOUR T1 - Evaluation ofStachybotrys chartarum in the house of an infant with pulmonary hemorrhage: Quantitative assessment before, during, and after remediation AN - 1238106399; 17058620 AB - Stachybotrys chartarum is an indoor mold that has been associated with pulmonary hemorrhage cases in the Cleveland, Ohio, area. This study applied two new quantitative measurements to air samples from a home in which an infant developed PH. Quantitative polymerase chain reaction and a protein synthesis inhibition assay were used to determine the level ofS. chartarum spores and their toxicity in air samples taken before, during, and after a remediation program was implemented to remove the fungus. Initial spore concentrations were between 0.1 and 9.3 spores/m super(3) of air, and the toxicity of air particulates was correspondingly low. However, the dust in the house contained between 0.4 and 2.110 super(3) spores/mg (as determined by hemocytometer counts). The remediation program removed all contaminated wallboard, paneling, and carpeting in the water-damaged areas of the home. In addition, a sodium hypochlorite solution was used to spray all surfaces during remediation. Although spore counts and toxicity were high during remediation, air samples taken postremediation showed no detectable levels ofS. chartarum or related toxicity. Nine isolates ofS. chartarum obtained from the home were analyzed for spore toxicity, hemolytic activity, and random amplified polymorphic DNA banding patterns. None of the isolates produced highly toxic spores (>90 mu g T2 toxin equivalents per gram wet weight spores) after growth for 10 and 30 days on wet wallboard, but three isolates were hemolytic consistently. DNA banding patterns suggested that at least one of these isolates was related to isolates from homes of infants with previously investigated cases. JF - Journal of Urban Health AU - Vesper, Stephen AU - Dearborn, Dorr G AU - Yike, Iwona AU - Allan, Terry AU - Sobolewski, John AU - Hinkley, Simon F AU - Jarvis, Bruce B AU - Haugland, Richard A AD - National Exposure Research Laboratory, US Environmental Protection Agency, 26 West Martin Luther King Drive, ML 314, 45268, Cincinnati, OH, Vesper.Stephen@EPA.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 68 EP - 85 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 77 IS - 1 SN - 1099-3460, 1099-3460 KW - Pollution Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Air sampling KW - Stachybotrys chartarum KW - Toxicity KW - USA, Ohio KW - Spores KW - P 0000:AIR POLLUTION KW - K 03310:Genetics & Taxonomy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1238106399?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Urban+Health&rft.atitle=Evaluation+ofStachybotrys+chartarum+in+the+house+of+an+infant+with+pulmonary+hemorrhage%3A+Quantitative+assessment+before%2C+during%2C+and+after+remediation&rft.au=Vesper%2C+Stephen%3BDearborn%2C+Dorr+G%3BYike%2C+Iwona%3BAllan%2C+Terry%3BSobolewski%2C+John%3BHinkley%2C+Simon+F%3BJarvis%2C+Bruce+B%3BHaugland%2C+Richard+A&rft.aulast=Vesper&rft.aufirst=Stephen&rft.date=2000-03-01&rft.volume=77&rft.issue=1&rft.spage=68&rft.isbn=&rft.btitle=&rft.title=Journal+of+Urban+Health&rft.issn=10993460&rft_id=info:doi/10.1007%2FBF02350963 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-12-01 N1 - Last updated - 2014-03-20 N1 - SubjectsTermNotLitGenreText - Spores; Toxicity; Stachybotrys chartarum; USA, Ohio DO - http://dx.doi.org/10.1007/BF02350963 ER - TY - JOUR T1 - Allergen-triggered airway hyperresponsiveness and lung pathology in mice sensitized with the biopesticide Metarhizium anisopliae. AN - 71010218; 10755701 AB - Metarhizium anisopliae is an entomopathogenic fungus recently licensed for indoor control of cockroaches, a major source of allergens. While M. anisopliae has been shown to be non-infectious and non-toxic to mammals there has been only limited research on potential allergenicity. Using a mouse model, we previously demonstrated allergic immune and inflammatory responses to this agent. The present study was designed to determine whether these responses were associated with changes in pulmonary responses, lung pathology, and the cytokine profile in bronchoalveolar lavage fluid (BALF). Soluble factors from fungal components were combined in equal protein amounts to form M. anisopliae crude antigen (MACA). BALB/C mice were intratracheally (i.t.) challenged with 10 microg MACA 14 days post intraperitoneal sensitization with 25 microg fungal antigen in aluminum hydroxide adjuvant. Physiological and cellular changes were examined. The mice were tested for airway hyperresponsiveness before (No Chal) and after (1, 3, and 8 days post challenge (DPIT)) MACA IT challenge. Subsequently, serum, BALF and the lungs were harvested. All treatment groups concurrently demonstrated significant non-specific pulmonary inflammation (neutrophil influx) and increased pulmonary sensitivity to methacholine (Mch) at 1 DPIT MACA challenge. Where as both adjuvant treated and naïve mice airway responses had returned to near normal levels by 3 DPIT, mice which were previously sensitized with MACA were still hyperresponsive to Mch challenge at 3 and 8 DPIT. This hyperresponsiveness correlates with eosinophil and lymphocyte influx, which is maximal at 3 DPIT and still elevated at 8 DPIT. Interleukin (IL) 5 was elevated for all treatment groups at 1 DPIT but only the MACA sensitized mice maintained elevated levels for both 3 and 8 DPIT. Furthermore, MACA sensitized mice had a more extensive inflammatory histopathology at all examined time points with peribronchial and perivascular infiltrates, like those associated with allergic responsiveness, peaking at 3 DPIT. These pulmonary pathologic changes appeared to be consistent with elevated levels of serum and BALF total IgE, BALF IL-4, eosinophils, and lymphocytes following MACA IT challenge in MACA sensitized mice. There were no significant differences among the three treatment groups with regard to BALF interferon (IFN) gamma. The cytokines profiled indicate a Th2-type response, which is reflected in the cellular influx and total IgE induction. These data further indicate that immune inflammatory responses, observed in mice following MACA sensitization and challenge, are associated with physiologic changes and histopathology characteristic of allergic disease. JF - Toxicology AU - Ward, M D AU - Madison, S L AU - Sailstad, D M AU - Gavett, S H AU - Selgrade, M K AD - Curriculum in Toxicology, University of North Carolina, Chapel Hill 27599, USA. ward-marsha@epamail.epa.gov Y1 - 2000/02/21/ PY - 2000 DA - 2000 Feb 21 SP - 141 EP - 154 VL - 143 IS - 2 SN - 0300-483X, 0300-483X KW - Allergens KW - 0 KW - Interleukin-5 KW - Interleukin-4 KW - 207137-56-2 KW - Immunoglobulin E KW - 37341-29-0 KW - Interferon-gamma KW - 82115-62-6 KW - Index Medicus KW - Interleukin-5 -- biosynthesis KW - Bronchoalveolar Lavage Fluid -- immunology KW - Lymphocyte Count -- drug effects KW - Animals KW - Interleukin-4 -- metabolism KW - Immunoglobulin E -- immunology KW - Cell Count -- drug effects KW - Eosinophilia -- chemically induced KW - Interferon-gamma -- biosynthesis KW - Enzyme-Linked Immunosorbent Assay KW - Mice KW - Mice, Inbred BALB C KW - Bronchoalveolar Lavage Fluid -- cytology KW - Female KW - Bronchial Hyperreactivity -- immunology KW - Allergens -- toxicity KW - Mitosporic Fungi -- immunology KW - Lung -- pathology KW - Bronchial Hyperreactivity -- pathology KW - Insect Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71010218?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology&rft.atitle=Allergen-triggered+airway+hyperresponsiveness+and+lung+pathology+in+mice+sensitized+with+the+biopesticide+Metarhizium+anisopliae.&rft.au=Ward%2C+M+D%3BMadison%2C+S+L%3BSailstad%2C+D+M%3BGavett%2C+S+H%3BSelgrade%2C+M+K&rft.aulast=Ward&rft.aufirst=M&rft.date=2000-02-21&rft.volume=143&rft.issue=2&rft.spage=141&rft.isbn=&rft.btitle=&rft.title=Toxicology&rft.issn=0300483X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-04-14 N1 - Date created - 2000-04-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Dose-dependent effects on tissue distribution and metabolism of dimethylarsinic acid in the mouse after intravenous administration AN - 17499597; 4691085 AB - Most mammals methylate inorganic arsenic to dimethylarsinic acid (DMA). This organic arsenical causes organ-specific toxicity and is a multi-organ tumor promoter. The objective of this study was to examine whether dose could affect the distribution and metabolism of DMA. Female B6C3F1 mice (3-4/time point) were administered 1.11 or 111 mg/kg of DMA (1 mu Ci of [ super(14)C] or unlabeled) intravenously and killed serially (5-480 min). Blood was separated into plasma and red blood cell fractions and liver, kidney and lung were removed, weighed and homogenized. Tissue samples were oxidized and analyzed for DMA-derived radioactivity. Blood and several organs of the non-radioactive DMA-treated animals were digested in acid and analyzed by hydride generation atomic absorption spectrophotometry for DMA and metabolites. Concentration-time profiles showed a biexponential decrease of DMA-derived radioactivity in all tissues examined. Kidney had the highest concentration (1-20% dose/gm) of radioactivity of all tissues up to 60 min post-administration. Concentration of radioactivity was greater in plasma than red blood cells at 5 and 15 min and then was similar for the remaining time points. A dose-dependent effect on the concentration of radioactivity was observed in the lung. The retention of radioactivity in the lung was altered compared with liver and kidney, with a much longer t sub(1/2 beta ) and a disproportionate increase in area under the curve with increased dose. No methylated or demethylated products of DMA were detected in blood or any organ up to 8 h post-exposure. The dose-dependent distribution of DMA in the lung may have a role in the toxic effects DMA elicits in this organ. JF - Toxicology AU - Hughes, M F AU - Del Razo, LM AU - Kenyon, E M AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Experimental Toxicology Division, MD-74, Research Triangle Park, NC 27711, USA, hughes.michaelf@epamail.epa.gov Y1 - 2000/02/21/ PY - 2000 DA - 2000 Feb 21 SP - 155 EP - 166 VL - 143 IS - 2 SN - 0300-483X, 0300-483X KW - distribution KW - metabolism KW - mice KW - dose effects KW - cacodylic acid KW - Toxicology Abstracts KW - Arsenic KW - X 24163:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17499597?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology&rft.atitle=Dose-dependent+effects+on+tissue+distribution+and+metabolism+of+dimethylarsinic+acid+in+the+mouse+after+intravenous+administration&rft.au=Hughes%2C+M+F%3BDel+Razo%2C+LM%3BKenyon%2C+E+M&rft.aulast=Hughes&rft.aufirst=M&rft.date=2000-02-21&rft.volume=143&rft.issue=2&rft.spage=155&rft.isbn=&rft.btitle=&rft.title=Toxicology&rft.issn=0300483X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Arsenic ER - TY - JOUR T1 - Cytogenetic studies of three triazine herbicides. I. In vitro studies. AN - 70956653; 10708969 AB - Atrazine, simazine, and cyanazine are widely used pre-emergence and post-emergence triazine herbicides that have made their way into the potable water supply of many agricultural communities. Because of this and the prevalence of contradictory cytogenetic studies in the literature on atrazine, simazine, and cyanazine, a series of in vitro experiments was performed to investigate the ability of these three triazines to induce sister chromatid exchanges (SCEs) and chromosome aberrations (CAs) in human lymphocyte cultures. Our results showed that all three triazines failed to produce any significant increases in SCEs or CAs up to the limits of solubility [using 0.5% dimethyl sulfoxide (DMSO)]. Our results are discussed in light of contradictory results in the literature. JF - Mutation research AU - Kligerman, A D AU - Doerr, C L AU - Tennant, A H AU - Zucker, R M AD - Environmental Carcinogenesis Division, Genetic and Cellular Toxicology Branch, US Environmental Protection Agency, ERC Building, Mail Drop 68, Research Triangle Park, NC 27711, USA. kligerman.andrew@epa.gov Y1 - 2000/02/16/ PY - 2000 DA - 2000 Feb 16 SP - 53 EP - 59 VL - 465 IS - 1-2 SN - 0027-5107, 0027-5107 KW - Herbicides KW - 0 KW - Triazines KW - Atrazine KW - QJA9M5H4IM KW - Simazine KW - SG0C34SMY3 KW - cyanazine KW - W34C4P18WD KW - Index Medicus KW - Triazines -- toxicity KW - Simazine -- toxicity KW - Humans KW - In Vitro Techniques KW - Lymphocytes -- drug effects KW - Atrazine -- toxicity KW - Cytogenetics KW - Sister Chromatid Exchange -- drug effects KW - Chromosome Aberrations KW - Herbicides -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70956653?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+research&rft.atitle=Cytogenetic+studies+of+three+triazine+herbicides.+I.+In+vitro+studies.&rft.au=Kligerman%2C+A+D%3BDoerr%2C+C+L%3BTennant%2C+A+H%3BZucker%2C+R+M&rft.aulast=Kligerman&rft.aufirst=A&rft.date=2000-02-16&rft.volume=465&rft.issue=1-2&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Mutation+research&rft.issn=00275107&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-04-13 N1 - Date created - 2000-04-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Characterization of a selective protein kinase C substrate derived from the MARCKS phosphorylation site domain for use in brain tissue homogenates. AN - 70887241; 10660461 AB - Protein kinase C (PKC) isozymes play crucial roles in neuronal signal transduction and can regulate transmitter release, ion channels, neural development, and plasticity. In vitro assays of PKC are frequently used to associate PKC activity with cellular function, and the availability of selective PKC substrates can facilitate such studies. We have characterized a commercially available 12 amino acid peptide derived from the myristoylated alanine-rich C kinase substrate (MARCKS-PSD, Calbiochem) for use in crude rat brain homogenates. Assays were performed at 25 degrees C for 10 min (linear up to 12 min) using optimal concentrations of calcium and lipid cofactors. Kinetic analysis of MARCKS-PSD phosphorylation by PKC purified from rat brain gave a K(m) of 2.3 microM, which was similar to the K(m) of 2.8 microM obtained using rat brain cortical homogenates. The selective PKC inhibitor bisindolylmaleimide reduced phosphorylation of MARCKS-PSD in a concentration-dependent manner, with greater than 95% inhibition at 1.0 microM. MARCKS-PSD was more potent than another widely used selective PKC substrate (neurogranin((28-43)) and was a good substrate for human recombinant PKC alpha, delta, and epsilon but not zeta. The ontogeny of PKC activity was examined in the cortex and cerebellum. PKC activity was low at birth and reached adult levels by 21 days of age in both regions. Calcium-independent PKC activity in brain homogenates could be measured with MARCKS-PSD and accounted for approximately 25 and 10% of total activity in 1-day-old and adult rat cortex, respectively. These results suggest that the MARCKS-PSD peptide can be used as a selective PKC substrate in rat brain homogenates. Copyright 2000 Academic Press. JF - Analytical biochemistry AU - Mundy, W R AU - Sutton, L D AD - Neurotoxicology Division, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. Y1 - 2000/02/15/ PY - 2000 DA - 2000 Feb 15 SP - 185 EP - 191 VL - 278 IS - 2 SN - 0003-2697, 0003-2697 KW - Intracellular Signaling Peptides and Proteins KW - 0 KW - Membrane Proteins KW - Proteins KW - myristoylated alanine-rich C kinase substrate KW - 125267-21-2 KW - Protein Kinase C KW - EC 2.7.11.13 KW - Index Medicus KW - Rats KW - Animals KW - Rats, Long-Evans KW - Phosphorylation KW - Humans KW - Substrate Specificity KW - Male KW - Binding Sites KW - Protein Kinase C -- metabolism KW - Brain -- enzymology KW - Protein Kinase C -- chemistry KW - Proteins -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70887241?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+biochemistry&rft.atitle=Characterization+of+a+selective+protein+kinase+C+substrate+derived+from+the+MARCKS+phosphorylation+site+domain+for+use+in+brain+tissue+homogenates.&rft.au=Mundy%2C+W+R%3BSutton%2C+L+D&rft.aulast=Mundy&rft.aufirst=W&rft.date=2000-02-15&rft.volume=278&rft.issue=2&rft.spage=185&rft.isbn=&rft.btitle=&rft.title=Analytical+biochemistry&rft.issn=00032697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-22 N1 - Date created - 2000-03-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Principles of affinity-based biosensors AN - 954576114; 13859759 AB - Despite the amount of resources that have been invested by national and international academic, government, and commercial sectors to develop affinity-based biosensor products, little obvious success has been realized through commercialization of these devices for specific applications (such as the enzyme biosensors for blood glucose analysis). Nevertheless, the fastest growing area in the biosensors research literature continues to involve advances in affinity-based biosensors and biosensor-related methods. Numerous biosensor techniques have been reported that allow researchers to better study the kinetics, structure, and (solid/liquid) interface phenomena associated with protein-ligand binding interactions. In addition, potential application areas for which affinity-based biosensor techniques show promise include clinical/diagnostics, food processing, military/antiterrorism, and environmental monitoring. The design and structural features of these devices--composed of a biological affinity element interfaced to a signal transducer--primarily determine their operational characteristics. This paper although not intended as a comprehensive review, will outline the principles of affinity biosensors with respect to potential application areas. JF - Molecular Biotechnology AU - Rogers, Kim R AD - U.S. EPA, 944 E. Harmon, 89119, Las Vegas, NV, rogers.Kim@epamail.epa.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 109 EP - 129 PB - Humana Press Inc., 999 Riverview Dr., Ste. 208 Totowa NJ 07512 USA VL - 14 IS - 2 SN - 1073-6085, 1073-6085 KW - Biotechnology and Bioengineering Abstracts KW - Biosensors KW - Food processing KW - Environmental monitoring KW - Blood KW - Reviews KW - Kinetics KW - Glucose KW - Enzymes KW - W 30955:Biosensors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/954576114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+Biotechnology&rft.atitle=Principles+of+affinity-based+biosensors&rft.au=Rogers%2C+Kim+R&rft.aulast=Rogers&rft.aufirst=Kim&rft.date=2000-02-01&rft.volume=14&rft.issue=2&rft.spage=109&rft.isbn=&rft.btitle=&rft.title=Molecular+Biotechnology&rft.issn=10736085&rft_id=info:doi/10.1385%2FMB%3A14%3A2%3A109 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Last updated - 2012-03-30 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Food processing; Biosensors; Blood; Kinetics; Reviews; Glucose; Enzymes DO - http://dx.doi.org/10.1385/MB:14:2:109 ER - TY - JOUR T1 - Neurotoxicology risk assessment guidelines: developmental neurotoxicology. AN - 71087148; 10794399 AB - EPA's Neurotoxicity Risk Assessment Guidelines were recently published in final form in the Federal Register (1998). This document was developed over a period of nearly ten years and is intended to establish operating principles used in the evaluation of data for neurotoxicity risk assessment. The guidelines contain a number of assumptions and definitions of key concepts, as well as guidance as to the evaluation of various behavioral and structural changes produced by chemical exposure in humans and animals. With regard to developmental neurotoxicity, risk assessors should be aware that chemical-induced neurotoxicity in adults may not always be a good predictor of developmental neurotoxicity. Adverse effects on the developing nervous system can occur prior to conception up to the time of sexual maturity, depend on the time of exposure relative to a critical state of nervous system development, can be seen at any time during the lifespan of the organism, may lead to delayed onset or latent effects, and may elicit compensatory mechanisms that obscure underlying neurotoxicity. Adverse effects include persistent alterations in function or structure of the nervous system or a change in the time or appearance of any endpoint. Relative to neurotoxicity in adult animals, there are several special concerns in hazard characterization of developmental studies, including maternal toxicity, the use of the litter as the statistical unit, and time of exposure relative to the ontogeny of various structural or functional endpoints. Dose-response evaluation of data from developmental studies is similar to that for adults, although a safety factor of 10 may be applied to protect children's health. The guidelines also note that exposure patterns of children differ from those of adults resulting in a greater intake of chemicals on a per body weight basis. The guidelines note several research needs, including more information on mechanisms of developmental neurotoxicity, mechanistically based dose-response models, impact of early exposure to chemicals on late-onset disease, studies on threshold, and experiments on potential interactions between chemicals in mixtures. JF - Neurotoxicology AU - Tilson, H A AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. tilson.hugh@epamail.epa.gov PY - 2000 SP - 189 EP - 194 VL - 21 IS - 1-2 SN - 0161-813X, 0161-813X KW - Pesticides KW - 0 KW - Index Medicus KW - Guidelines as Topic -- standards KW - Toxicology -- trends KW - Nervous System -- drug effects KW - Nervous System -- growth & development KW - Risk Assessment KW - Pesticides -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71087148?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Neurotoxicology&rft.atitle=Neurotoxicology+risk+assessment+guidelines%3A+developmental+neurotoxicology.&rft.au=Tilson%2C+H+A&rft.aulast=Tilson&rft.aufirst=H&rft.date=2000-02-01&rft.volume=21&rft.issue=1-2&rft.spage=189&rft.isbn=&rft.btitle=&rft.title=Neurotoxicology&rft.issn=0161813X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-30 N1 - Date created - 2000-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Comparison of the role of esterases in the differential age-related sensitivity to chlorpyrifos and methamidophos. AN - 71087034; 10794384 AB - More than 30 years ago, scientists recognized that, at a given dosage, the young rat was more sensitive than the adult to the toxicity of many organophosphorus, anticholinesterase pesticides. This observation went basically unexamined until recently. Renewed interest has emerged in scrutinizing this age-related sensitivity to pesticides, especially in light of the many new pesticides which are currently marketed. Our laboratory has been involved in comparing the age-related sensitivity of young and adult rats to chlorpyrifos [Dursban, Lorsban; O,O-diethyl O-(3,5,6-trichloro-2-pyridyl) phosphorothioate] and methamidophos (Monitor; O,S-dimethyl phosphoamidothioate). Using chlorpyrifos, there is marked age-related sensitivity: direct oral dosing of the preweanling rat (postnatal day 17; PND17) with chlorpyrifos causes a toxic response (defined either behaviorally or biochemically) at a approximately 5-fold lower dosage than in adults (oral, maximum tolerated dose for the PND17 is 20 mg/kg versus 100 mg/kg for the adult). Other studies have indicated that the rat detoxifies chlorpyrifos and its oxon by binding to carboxylesterases and hydrolysis by A-esterases. The young rat is deficient in both these detoxification enzymes, which may explain the increased sensitivity of the young to chlorpyrifos toxicity. The age-related pattern for methamidophos is distinctly different: the oral, maximum tolerated dose is the same (8 mg/kg) whether the animal is 17 days old or an adult. We present data which indicate that methamidophos is not detoxified appreciably either in vivo or in vitro by A-esterases or carboxylesterases. Therefore, we submit the following hypothesis: organophosphorus pesticides, like chlorpyrifos, which are detoxified via A-esterases or carboxylesterases are more likely to exhibit age-related differences in sensitivity than pesticides which are not detoxified via these routes. JF - Neurotoxicology AU - Padilla, S AU - Buzzard, J AU - Moser, V C AD - Neurotoxicology Division, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. Padilla.Stephanie@epa.gov PY - 2000 SP - 49 EP - 56 VL - 21 IS - 1-2 SN - 0161-813X, 0161-813X KW - Cholinesterase Inhibitors KW - 0 KW - Insecticides KW - Organothiophosphorus Compounds KW - Recombinant Proteins KW - methamidophos KW - 8Z083FM94W KW - Esterases KW - EC 3.1.- KW - Acetylcholinesterase KW - EC 3.1.1.7 KW - Cholinesterases KW - EC 3.1.1.8 KW - Chlorpyrifos KW - JCS58I644W KW - Index Medicus KW - Rats KW - Recombinant Proteins -- drug effects KW - Cholinesterases -- metabolism KW - Brain -- enzymology KW - Animals KW - Recombinant Proteins -- metabolism KW - Brain Chemistry -- drug effects KW - Brain -- drug effects KW - Acetylcholinesterase -- metabolism KW - Inactivation, Metabolic -- physiology KW - Mice KW - Male KW - Female KW - Insecticides -- toxicity KW - Aging -- physiology KW - Cholinesterase Inhibitors -- toxicity KW - Chlorpyrifos -- toxicity KW - Esterases -- physiology KW - Organothiophosphorus Compounds -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71087034?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Neurotoxicology&rft.atitle=Comparison+of+the+role+of+esterases+in+the+differential+age-related+sensitivity+to+chlorpyrifos+and+methamidophos.&rft.au=Padilla%2C+S%3BBuzzard%2C+J%3BMoser%2C+V+C&rft.aulast=Padilla&rft.aufirst=S&rft.date=2000-02-01&rft.volume=21&rft.issue=1-2&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Neurotoxicology&rft.issn=0161813X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-30 N1 - Date created - 2000-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Vulnerable processes of nervous system development: a review of markers and methods. AN - 71079667; 10794382 AB - The susceptibility of the developing nervous system to damage following exposure to environmental contaminants has been well recognized. More recently, from a regulatory perspective, an increased emphasis has been placed on the vulnerability of the developing nervous system to damage following pesticide exposure. The publication of the National Academy of Sciences (NAS) report on Pesticides in the Diets of Infants and Children (1995) and the passage of the Food Quality Protection Act (FQPA) and Safe Drinking Water Act (SDWA) amendments have significantly escalated the scientific debate regarding age-related susceptibility. Key concerns raised in the NAS report include the qualitative and quantitative differences that distinguish the developing nervous system from that of the adult. It was suggested that neurotoxicity testing on adult animals alone may not be predictive of these differences in susceptibility. The age-related susceptibility of the nervous system is compounded by the protracted period of time over which this complex organ system develops. This temporal vulnerability spans the embryonic, fetal, infant, and adolescent periods. Normal development of the nervous system requires the concomitant and coordinated ontogeny of proliferation, migration, differentiation, synaptogenesis, gliogenesis, myelination and apoptosis to occur in a temporally- and regionally-dependent manner. Perturbations of these processes during development can result in long-term irreversible consequences that affect the structure and function of the nervous system and could account for qualitative differences in age-related susceptibility of the developing nervous system as compared to the adult nervous system. A discussion of developmental milestones and the relevance of transient effects on developmental endpoints are presented. Transient effects following developmental perturbations can be missed or dismissed depending on the experimental design or screening strategy employed. This subject is discussed in light of scientific uncertainties regarding perturbation-induced compensation in the developing nervous system. Thus, utilization of age-appropriate tests of these developmental processes may improve the detection and reduce uncertainty about the nature of adverse effects following developmental exposure to environmental neurotoxicants. JF - Neurotoxicology AU - Barone, S AU - Das, K P AU - Lassiter, T L AU - White, L D AD - Neurotoxicology Division, Cellular and Molecular Toxicology Branch, National Health Effects & Environmental Research Laboratory, US Environmental Protection Agency, RTP, NC 27711, USA. barone.stan@epamail.epa.gov PY - 2000 SP - 15 EP - 36 VL - 21 IS - 1-2 SN - 0161-813X, 0161-813X KW - Biomarkers KW - 0 KW - Environmental Pollutants KW - Index Medicus KW - Animals KW - Humans KW - Female KW - Pregnancy KW - Environmental Pollutants -- toxicity KW - Nervous System -- drug effects KW - Nervous System -- embryology KW - Nervous System -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71079667?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Neurotoxicology&rft.atitle=Vulnerable+processes+of+nervous+system+development%3A+a+review+of+markers+and+methods.&rft.au=Barone%2C+S%3BDas%2C+K+P%3BLassiter%2C+T+L%3BWhite%2C+L+D&rft.aulast=Barone&rft.aufirst=S&rft.date=2000-02-01&rft.volume=21&rft.issue=1-2&rft.spage=15&rft.isbn=&rft.btitle=&rft.title=Neurotoxicology&rft.issn=0161813X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-30 N1 - Date created - 2000-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A comparison of the effects of bilateral and unilateral infusions of muscimol into the basal forebrain on cued detection of visual targets in rats. AN - 70974244; 10718269 AB - This study investigated the role of the basal forebrain cholinergic system (BFCS) in rats' performance of a visuospatial attention task. Muscimol was infused bilaterally and unilaterally into the BFCS to inhibit cholinergic projections to the cortex. Muscimol slowed responding without significantly affecting side-bias. Bilateral infusions increased accuracy for all targets, whereas unilateral infusions reduced accuracy for targets contralateral to the infusion and increased accuracy for targets ipsilateral to the infusion. After a low unilateral dose of muscimol, invalid cues impaired detection of contralateral targets and spared detection of ipsilateral targets. A high unilateral dose of muscimol impaired detection of contralateral targets independently of cueing. These results suggest that interhemispheric imbalance in cortical activity by pharmacological manipulation of the BFCS can impair the detection of lateralized visual stimuli. JF - Behavioral neuroscience AU - Oshiro, W M AU - Bushnell, P J AU - Chiba, A A AD - Neurotoxicology Division, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. Y1 - 2000/02// PY - 2000 DA - February 2000 SP - 137 EP - 149 VL - 114 IS - 1 SN - 0735-7044, 0735-7044 KW - Index Medicus KW - Space life sciences KW - Rats KW - Animals KW - Brain Mapping KW - Rats, Long-Evans KW - Psychomotor Performance -- drug effects KW - Orientation -- drug effects KW - Color Perception -- physiology KW - Neural Inhibition -- drug effects KW - Neural Pathways -- drug effects KW - Male KW - Neocortex -- drug effects KW - Dominance, Cerebral -- drug effects KW - Prosencephalon -- drug effects KW - Attention -- drug effects KW - Cholinergic Fibers -- drug effects KW - Visual Perception -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70974244?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Behavioral+neuroscience&rft.atitle=A+comparison+of+the+effects+of+bilateral+and+unilateral+infusions+of+muscimol+into+the+basal+forebrain+on+cued+detection+of+visual+targets+in+rats.&rft.au=Oshiro%2C+W+M%3BBushnell%2C+P+J%3BChiba%2C+A+A&rft.aulast=Oshiro&rft.aufirst=W&rft.date=2000-02-01&rft.volume=114&rft.issue=1&rft.spage=137&rft.isbn=&rft.btitle=&rft.title=Behavioral+neuroscience&rft.issn=07357044&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-04-19 N1 - Date created - 2000-04-19 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A multiple-purpose design approach to the evaluation of risks from mixtures of disinfection by-products. AN - 70960914; 10711404 AB - Drinking water disinfection has effectively eliminated much of the morbidity and mortality associated with waterborne infectious diseases in the United States. Various disinfection processes, however, produce certain types and amounts of disinfection by-products (DBPs), including trihalomethanes (THM), haloacetic acids, haloacetonitriles, and bromate, among others. Human health risks from the ubiquitous exposure to complex mixtures of DBPs are of concern because existing epidemiologic and toxicologic studies suggest the existence of systemic or carcinogenic effects. Researchers from several organizations have developed a multiple-purpose design approach to this problem that combines efficient laboratory experimental designs with statistical models to provide data on critical research issues (e.g., estimation of human health risk from low-level DBP exposures, evaluation of additivity assumptions as useful for risk characterization, estimation of health risks from different drinking water treatment options). A series of THM experiments have been designed to study embryonic development, mortality and cancer in Japanese medaka (Oryzias latipes) and liver and kidney endpoints in female CD-1 mice. The studies are to provide dose-response data for specific mixtures of the 4 THMs, for the single chemicals, and for binary combinations. The dose-levels and mixing ratios for these experiments were selected to be useful for development and refinement of three different statistical methods: testing for departures from dose-additivity; development of an interactions-based hazard index; and use of proportional-response addition as a risk characterization method. Preliminary results suggest that dose-additivity is a reasonable risk assessment assumption for DBPs. The future of mixtures research will depend on such collaborative efforts that maximize the use of resources and focus on issues of high relevance to the risk assessment of human health. JF - Drug and chemical toxicology AU - Teuschler, L K AU - Gennings, C AU - Stiteler, W M AU - Hertzberg, R C AU - Colman, J T AU - Thiyagarajah, A AU - Lipscomb, J C AU - Hartley, W R AU - Simmons, J E AD - NCEA, U.S. EPA, Cincinnati, OH, USA. Y1 - 2000/02// PY - 2000 DA - February 2000 SP - 307 EP - 321 VL - 23 IS - 1 SN - 0148-0545, 0148-0545 KW - Drug Combinations KW - 0 KW - Hydrocarbons, Halogenated KW - L-Iditol 2-Dehydrogenase KW - EC 1.1.1.14 KW - Aspartate Aminotransferases KW - EC 2.6.1.1 KW - Alanine Transaminase KW - EC 2.6.1.2 KW - Index Medicus KW - Oryzias KW - Animals KW - Liver -- pathology KW - Dose-Response Relationship, Drug KW - Humans KW - Models, Statistical KW - Mice KW - Risk Assessment KW - Aspartate Aminotransferases -- blood KW - Necrosis KW - Alanine Transaminase -- blood KW - L-Iditol 2-Dehydrogenase -- blood KW - Liver -- drug effects KW - Toxicity Tests KW - Drug Synergism KW - Female KW - Organ Size -- drug effects KW - Disinfection KW - Hydrocarbons, Halogenated -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70960914?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Drug+and+chemical+toxicology&rft.atitle=A+multiple-purpose+design+approach+to+the+evaluation+of+risks+from+mixtures+of+disinfection+by-products.&rft.au=Teuschler%2C+L+K%3BGennings%2C+C%3BStiteler%2C+W+M%3BHertzberg%2C+R+C%3BColman%2C+J+T%3BThiyagarajah%2C+A%3BLipscomb%2C+J+C%3BHartley%2C+W+R%3BSimmons%2C+J+E&rft.aulast=Teuschler&rft.aufirst=L&rft.date=2000-02-01&rft.volume=23&rft.issue=1&rft.spage=307&rft.isbn=&rft.btitle=&rft.title=Drug+and+chemical+toxicology&rft.issn=01480545&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-29 N1 - Date created - 2000-03-29 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Erratum In: Drug Chem Toxicol 2000 Aug;23(3):511 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Acute administration of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) in pregnant Long Evans rats: association of measured tissue concentrations with developmental effects. AN - 70938626; 10696789 AB - Prenatal exposure to TCDD interferes with fetal development at doses lower than those causing overt toxicity in adult animals. Exposure to TCDD during development produces alterations in the reproductive system of the developing pups- delayed puberty and reduced sperm counts in males and malformations in the external genitalia of females. The objectives of this study were to determine maternal and fetal tissue concentrations of TCDD after acute exposure and whether these tissue concentrations can be used to estimate the intensity of the developmental abnormalities reported by other laboratories. Pregnant Long Evans rats received a single, oral dose of 0.05, 0.20, 0.80, or 1.0 microg [3H]-TCDD/kg on gestation day (GD) 15, and maternal and fetal tissue concentrations of TCDD were measured on GD16 and GD21. On GD16, maternal liver contained the greatest amount of TCDD (30-47% administered dose). One day after administration of 0.20 microg TCDD/kg on GD15, there were 13.2 pg TCDD/g present in an individual fetus. This concentration is associated with delayed puberty and decreased epididymal sperm counts in male pups as well as malformations in the external genitalia of females. For the responses studied, tissue concentration measured during a critical period of gestation adequately predicts the intensity of the response. In addition, there was a strong correlation between fetal body burden and maternal body burden on GD16. A dose of 0.05 microg TCDD/kg resulted in maternal body burdens of 30.6+/-3.1 and 26.6+/-3.1 ng TCDD/kg on GD16 and GD21, respectively. In conclusion, low-level TCDD exposure during the perinatal stage of life can produce adverse effects within the developing pups and that tissue concentration measured during a critical period is the appropriate dose metric to predict adverse reproductive and developmental effects. JF - Toxicological sciences : an official journal of the Society of Toxicology AU - Hurst, C H AU - DeVito, M J AU - Setzer, R W AU - Birnbaum, L S AD - Curriculum in Toxicology, University of North Carolina, Chapel Hill 27599-7270, USA. hurst.christopher@epamail.epa.gov Y1 - 2000/02// PY - 2000 DA - February 2000 SP - 411 EP - 420 VL - 53 IS - 2 SN - 1096-6080, 1096-6080 KW - Polychlorinated Dibenzodioxins KW - 0 KW - Teratogens KW - Index Medicus KW - Vagina -- drug effects KW - Urethra -- embryology KW - Animals KW - Sperm Count -- drug effects KW - Rats, Long-Evans KW - Testis -- embryology KW - Dose-Response Relationship, Drug KW - Body Burden KW - Vagina -- embryology KW - Tissue Distribution KW - Pregnancy KW - Rats KW - Urethra -- drug effects KW - Embryonic and Fetal Development KW - Testis -- drug effects KW - Female KW - Male KW - Pregnancy, Animal -- metabolism KW - Polychlorinated Dibenzodioxins -- pharmacokinetics KW - Teratogens -- pharmacokinetics KW - Polychlorinated Dibenzodioxins -- toxicity KW - Teratogens -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70938626?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+sciences+%3A+an+official+journal+of+the+Society+of+Toxicology&rft.atitle=Acute+administration+of+2%2C3%2C7%2C8-tetrachlorodibenzo-p-dioxin+%28TCDD%29+in+pregnant+Long+Evans+rats%3A+association+of+measured+tissue+concentrations+with+developmental+effects.&rft.au=Hurst%2C+C+H%3BDeVito%2C+M+J%3BSetzer%2C+R+W%3BBirnbaum%2C+L+S&rft.aulast=Hurst&rft.aufirst=C&rft.date=2000-02-01&rft.volume=53&rft.issue=2&rft.spage=411&rft.isbn=&rft.btitle=&rft.title=Toxicological+sciences+%3A+an+official+journal+of+the+Society+of+Toxicology&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-17 N1 - Date created - 2000-03-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The possible role of volcanic aquifers in prebiologic genesis of organic compounds and RNA AN - 52229156; 2001-044057 JF - Origins of Life and Evolution of the Biosphere AU - Washington, John Y1 - 2000/02// PY - 2000 DA - February 2000 SP - 53 EP - 79 PB - Kluwer Academic Publishers, Dordrecht VL - 30 IS - 1 SN - 0169-6149, 0169-6149 KW - clay KW - isotope fractionation KW - life origin KW - chemical reactions KW - volcanism KW - sediments KW - oxides KW - leaky aquifers KW - chemical composition KW - geochemistry KW - Eh KW - P-T conditions KW - apatite KW - meteoric water KW - experimental studies KW - clastic sediments KW - biochemistry KW - physicochemical properties KW - mathematical models KW - phosphates KW - inorganic materials KW - aquifers KW - hydroxides KW - organic compounds KW - RNA KW - saturation KW - racemization KW - mathematical methods KW - volcanoes KW - sulfides KW - 08:General paleontology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52229156?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.atitle=The+possible+role+of+volcanic+aquifers+in+prebiologic+genesis+of+organic+compounds+and+RNA&rft.au=Washington%2C+John&rft.aulast=Washington&rft.aufirst=John&rft.date=2000-02-01&rft.volume=30&rft.issue=1&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.issn=01696149&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-0875/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 108 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - OGLFAU N1 - SubjectsTermNotLitGenreText - apatite; aquifers; biochemistry; chemical composition; chemical reactions; clastic sediments; clay; Eh; experimental studies; geochemistry; hydroxides; inorganic materials; isotope fractionation; leaky aquifers; life origin; mathematical methods; mathematical models; meteoric water; organic compounds; oxides; P-T conditions; phosphates; physicochemical properties; racemization; RNA; saturation; sediments; sulfides; volcanism; volcanoes ER - TY - JOUR T1 - Low tech remediation of arsenic contaminated groundwater in the Zimapan municipality, Zimapan, Mexico AN - 52021640; 2003-017151 AB - The groundwater in the Zimapan Municipality, Mexico, contains arsenic in concentrations up to 1 mg/L. The residents of Zimapan who do not have municipal water supply have little choice but to drink this contaminated water. Currently there is no low-cost remediation option available in Zimapan, however, due to the properties of a local rock formation, such a decontamination option is viable. A physical model examining anthropogenic contamination illustrated that when the Soyatal formation, a Cretaceous clayey limestone, was reacted with arsenic contaminated water, the arsenic concentration decreased significantly. Further research showed that smaller diameter particle size (60-90 micron) resulted in more efficient arsenic removal. Using this past research, further experimentation was carried out in order to examine the apparent sorption of arsenic to the kaolinite and illite present in the Soyatal formation. Contaminated groundwater was collected from one of the deep wells in Zimapan and reacted with varying amounts of Soyatal at a constant temperature. These experiments indicated that though the Soyatal is an effective arsenic sorbant, with a rock to water ratio greater than 1:5, arsenic begins to re-enter the system. In addition, the trials run with powdered Soyatal resulted in higher arsenic concentrations overall when compared to the trials which used crushed (2-4 mm diameter) Soyatal. Based on these experiments and further analyses which will be carried out, a sorption isotherm will be quantified and the ultimate goal of a rock/water in a bucket remediation system will be realized. JF - Abstracts with Programs - Geological Society of America AU - Heggeman, Katherine M AU - Ongley, Lois K AU - Miller, Wynne AU - Pickelner, Shea AU - Armienta, Aurora AU - Anonymous Y1 - 2000/02// PY - 2000 DA - February 2000 SP - 24 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 1 SN - 0016-7592, 0016-7592 KW - silicates KW - water supply KW - sorption KW - Cretaceous KW - arsenic KW - pollution KW - Zimapan Mexico KW - kaolinite KW - illite KW - Mesozoic KW - temperature KW - remediation KW - ground water KW - clay minerals KW - Soyatal Formation KW - Mexico KW - isotherms KW - metals KW - sheet silicates KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52021640?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Low+tech+remediation+of+arsenic+contaminated+groundwater+in+the+Zimapan+municipality%2C+Zimapan%2C+Mexico&rft.au=Heggeman%2C+Katherine+M%3BOngley%2C+Lois+K%3BMiller%2C+Wynne%3BPickelner%2C+Shea%3BArmienta%2C+Aurora%3BAnonymous&rft.aulast=Heggeman&rft.aufirst=Katherine&rft.date=2000-02-01&rft.volume=32&rft.issue=1&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 35th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - arsenic; clay minerals; Cretaceous; ground water; illite; isotherms; kaolinite; Mesozoic; metals; Mexico; pollution; remediation; sheet silicates; silicates; sorption; Soyatal Formation; temperature; water supply; Zimapan Mexico ER - TY - JOUR T1 - A unified radon relative risk model (UR3M) AN - 52020169; 2003-017294 AB - There is now little dispute that radon delivered to homes through either the soil gas pathway or the water supply has the potential for presenting a significant health risk to the occupants of many residential dwellings. However, for homeowners, planners and water system administrators there remains the question of which pathway is the greatest contributor to the risk in any particular situation. The Unified Radon Relative Risk Model (UR3M) is a Windows based program that utilizes current risk estimates for the inhalation and ingestion of radon and its decay products to assist the user with assessing the relative risk posed by radon entering a home, or homes, from either the soil gas or water pathway. The model may be run in a mode that addresses either the single dwelling or multiple dwelling scenario. Further, the model allows the user to run source risk comparisons for the general population, or for either the "ever smoker" or "never smoker" population. A secondary feature of the model is its capacity for performing a first-cut cost-benefit analysis for various air-versus-water treatment options. This feature is available for multiple home scenarios, but not for the user interested in a single household. UR3M may prove particularly useful for states and community water system administrators who are considering complying with the alternative maximum contaminant level/multimedia mitigation option allowed in the 1996 radon amendment to the Safe Drinking Water Act. JF - Abstracts with Programs - Geological Society of America AU - Rydell, Stan AU - Chase, David AU - Anonymous Y1 - 2000/02// PY - 2000 DA - February 2000 SP - 71 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 1 SN - 0016-7592, 0016-7592 KW - models KW - water supply KW - pollutants KW - noble gases KW - water treatment KW - pollution KW - risk assessment KW - Safe Drinking Water Act KW - radon KW - soil gases KW - drinking water KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52020169?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=A+unified+radon+relative+risk+model+%28UR3M%29&rft.au=Rydell%2C+Stan%3BChase%2C+David%3BAnonymous&rft.aulast=Rydell&rft.aufirst=Stan&rft.date=2000-02-01&rft.volume=32&rft.issue=1&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 35th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - drinking water; models; noble gases; pollutants; pollution; radon; risk assessment; Safe Drinking Water Act; soil gases; water supply; water treatment ER - TY - JOUR T1 - Temporal Trends in Ethoxyresorufin-O-Deethylase Activity of Brook Trout (Salvelinus Fontinalis) Fed2,3,7,8-Tetrachlorodibenzo-P-Dioxin AN - 20766564; 7926482 AB - Changes in ethoxyresorufin-O-deethylase (EROD) activity were monitored through an extended 6-month dietary exposure to determine the relationship between EROD activity and uptake of 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) in brook trout, Salvelinus fontinalis. Brook trout were fed labeled TCDD during a 4-week loading phase and an 11-week maintenance phase to achieve whole-body concentrations of 0, 75, 150, 300, 600, and 1,200 pg TCDD/g fish. A spawning phase followed during which no TCDD was introduced. The TCDD had an extended half-life, with maximal levels detected in the late loading- early maintenance phases and 81 d after TCDD had been removed from the diet. Accumulation in liver increased as whole-body target concentration increased but was generally less than half of anticipated whole-body target concentrations. The EROD activity demonstrated a dose-dependent increase. Positive correlations were observed between EROD activity and TCDD body burdens for both males and females. For males, maximal induction was attained early in the maintenance phase and maintained during latter phases. For females, induction was characterized by a biphasic pattern. Maximal induction was attained during late loading-early maintenance, with an attenuated response observed just before spawning. In addition, the induction response was modulated by sex, as induction was lower in females when compared with males. If sexual biases are considered, increased EROD activity may serve as an indicator of level of TCDD exposure and a sublethal predictor of effects of exposure. JF - Environmental Toxicology and Chemistry AU - Cormier, Susan M AU - Millward, Michael R AU - Mueller, Cornelia AU - Subramanian, Bhagya AU - Johnson, Rodney D AU - Tietge, Joseph E AD - U.S. Environmental Protection Agency, 26 W. Martin Luther King Drive, Cincinnati, Ohio 45268 Y1 - 2000/02// PY - 2000 DA - February 2000 SP - 462 EP - 471 PB - Allen Press, Inc., 810 East Tenth St. PO Box 1897 Lawrence KS 66044 USA, [mailto:webmaster@allenpress.com] VL - 19 IS - 2 SN - 0730-7268, 0730-7268 KW - Pollution Abstracts; Toxicology Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Ethoxyresorufin-O-deethylase KW - Induction KW - 2,3,7,8-Tetrachlorodibenzo-p-dioxin KW - Brook trout KW - Salvelinus fontinalis KW - Radioactive Half-life KW - spawning KW - Toxicity tests KW - Exposure KW - Absorption KW - body burden KW - Pollution indicators KW - Toxicology KW - Diets KW - Body burden KW - Geochemistry KW - TCDD KW - Toxicity KW - Spawning KW - Maintenance KW - Bioaccumulation KW - Trout KW - Water Pollution Effects KW - Liver KW - Fish KW - Q5 08504:Effects on organisms KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution KW - X 24350:Industrial Chemicals KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20766564?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Temporal+Trends+in+Ethoxyresorufin-O-Deethylase+Activity+of+Brook+Trout+%28Salvelinus+Fontinalis%29+Fed2%2C3%2C7%2C8-Tetrachlorodibenzo-P-Dioxin&rft.au=Cormier%2C+Susan+M%3BMillward%2C+Michael+R%3BMueller%2C+Cornelia%3BSubramanian%2C+Bhagya%3BJohnson%2C+Rodney+D%3BTietge%2C+Joseph+E&rft.aulast=Cormier&rft.aufirst=Susan&rft.date=2000-02-01&rft.volume=19&rft.issue=2&rft.spage=462&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/10.1897%2F1551-5028%282000%29019-0462%3ATTIEOD%3E2.3.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-01-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Body burden; Geochemistry; Toxicity tests; Pollution indicators; Toxicology; Diets; Liver; TCDD; Spawning; Bioaccumulation; body burden; spawning; Trout; Exposure; Water Pollution Effects; Absorption; Radioactive Half-life; Fish; Toxicity; Maintenance; Salvelinus fontinalis DO - http://dx.doi.org/10.1897/1551-5028(2000)019-0462:TTIEOD>2.3.CO;2 ER - TY - JOUR T1 - Conservatism in Pesticide Exposure Assessment AN - 18418465; 5405579 AB - Three important factors are commonly encountered in exposure assessment that when combined could overestimate the exposure to pesticides by as much as two orders of magnitude. The three factors discussed are dermal absorption from laboratory animal studies, daily dose extrapolated from partial day monitoring, and nonbolus dose from dermal or inhalation exposure. Conservatism built into the process by each of these three factors is substantiated with available empirical data. The dose overestimation from these factors varies discriminatively by exposure scenarios and peculiarities of a given chemical. It is for this reason that a generic overestimation factor cannot be ascribed. Following the empirical illustrations, the authors conclude that the most effective approach for dealing with the problem is to generate the most appropriate data possible. This means producing human rather than laboratory animal dermal absorption data, conducting full-day exposure monitoring studies, and whenever feasible generating dermal rather than oral toxicology data (or alternatively data on both oral and dermal pharmacokinetics) in those cases where the dermal route predominates. Copyright 2000 Academic Press. JF - Regulatory Toxicology and Pharmacology AU - Ross, J H AU - Dong, M H AU - Krieger, R I AD - Worker Health and Safety Branch, Cal/EPA Department of Pesticide Regulation, Sacramento, California, 95814 Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 53 EP - 58 PB - Academic Press, Inc., 525 B St. Ste. 1900 San Diego CA 92101-4495 USA, [mailto:apsubs@acad.com] VL - 31 IS - 1 SN - 0273-2300, 0273-2300 KW - exposure KW - Toxicology Abstracts KW - X 24133:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18418465?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Regulatory+Toxicology+and+Pharmacology&rft.atitle=Conservatism+in+Pesticide+Exposure+Assessment&rft.au=Ross%2C+J+H%3BDong%2C+M+H%3BKrieger%2C+R+I&rft.aulast=Ross&rft.aufirst=J&rft.date=2000-02-01&rft.volume=31&rft.issue=1&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Regulatory+Toxicology+and+Pharmacology&rft.issn=02732300&rft_id=info:doi/10.1006%2Frtph.1999.1363 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1006/rtph.1999.1363 ER - TY - JOUR T1 - Management of Lakes and Reservoirs during Global Climate Change AN - 18023288; 4676025 JF - Journal of Paleolimnology AU - Landers, D H AD - USEPA, National Health and Environmental Effects Research Laboratory, Western Ecology Division, 200 SW 35th Street, Corvallis, Oregon 97333, USA, Landers@mail.cor.epa.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 225 EP - 226 PB - Kluwer Academic Publishers VL - 23 IS - 2 SN - 0921-2728, 0921-2728 KW - ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Resource management KW - Water Management KW - Water reservoirs KW - Climatic changes KW - Water Supply KW - Water resources KW - Greenhouse effect KW - Freshwater KW - Resources Management KW - Water supply KW - Lakes KW - Water management KW - Reservoirs KW - Environment management KW - Q5 08523:Conservation, wildlife management and recreation KW - SW 4020:Evaluation process UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18023288?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Paleolimnology&rft.atitle=Management+of+Lakes+and+Reservoirs+during+Global+Climate+Change&rft.au=Landers%2C+D+H&rft.aulast=Landers&rft.aufirst=D&rft.date=2000-02-01&rft.volume=23&rft.issue=2&rft.spage=225&rft.isbn=&rft.btitle=&rft.title=Journal+of+Paleolimnology&rft.issn=09212728&rft_id=info:doi/10.1023%2FA%3A1008159701183 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Lakes; Resource management; Water reservoirs; Water management; Climatic changes; Water resources; Greenhouse effect; Environment management; Water supply; Water Management; Water Supply; Resources Management; Reservoirs; Freshwater DO - http://dx.doi.org/10.1023/A:1008159701183 ER - TY - JOUR T1 - Evaluation of a Backpack Electrofishing Unit for Multiple Lake Surveys of Fish Assemblage Structure AN - 17821627; 4856784 AB - We evaluated the effectiveness of a portable, backpack electrofishing unit, used from a small boat, for sampling fish assemblage structure in 11 lakes in the northeastern United States. Samples collected with a boat-mounted, 350-W backpack unit (EF-BP) were compared with samples taken by (1) two 5,000-W electrofishing units, (2) gill nets, (3) trap nets and minnow traps, and (4) seines. The EF-BP was more effective than the nonelectrofishing gears, capturing a mean of 79% of a lake's documented fish species pool. Gill nets, beach seines, and trap nets captured, on average, about 50% of the species; minnow traps were least efficient. With identical transect times, the EF-BP was as effective as a standard barge-mounted electrofishing unit for capturing species and numbers of individuals. At three low-conductivity lakes, the EF-BP collected fewer species and individuals than a semiportable 5,000-W unit but was more effective than any of the nonelectrofishing gears. Analysis of species accumulation curves for the EF-BP indicated that three or four 4-min electrofishing of transects were sufficient to collect a reasonably complete sample of the available species pool in lakes smaller than 20 ha; in larger lakes up to 900 ha, as many as nine transects were required to achieve a similar degree of sampling sufficiency. JF - North American Journal of Fisheries Management AU - Vaux, P D AU - Whittier, T R AU - DeCesare, G AU - Kurtenbach, J P AD - Dynamac International, Inc., U.S. Environmental Protection Agency, 200 SW 35th Street, Corvallis, Oregon 97333, USA, whittier@mail.cor.epa.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 168 EP - 179 VL - 20 IS - 1 SN - 0275-5947, 0275-5947 KW - design KW - sampling KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Electric fishing KW - USA KW - Fishery surveys KW - Freshwater KW - Lake fisheries KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08563:Fishing gear and methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17821627?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=North+American+Journal+of+Fisheries+Management&rft.atitle=Evaluation+of+a+Backpack+Electrofishing+Unit+for+Multiple+Lake+Surveys+of+Fish+Assemblage+Structure&rft.au=Vaux%2C+P+D%3BWhittier%2C+T+R%3BDeCesare%2C+G%3BKurtenbach%2C+J+P&rft.aulast=Vaux&rft.aufirst=P&rft.date=2000-02-01&rft.volume=20&rft.issue=1&rft.spage=168&rft.isbn=&rft.btitle=&rft.title=North+American+Journal+of+Fisheries+Management&rft.issn=02755947&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Electric fishing; Fishery surveys; Lake fisheries; USA; Freshwater ER - TY - JOUR T1 - DNA arrays: technology, options and toxicological applications AN - 17695563; 4784511 AB - The human genome contains an estimated 3 billion bases of DNA making up some 100000 genes, and the variation within this genome accounts for human diversity and, in many cases, disease. Defining and understanding the expression profile of given genotypes is essential to understanding adverse effects from acute or chronic exposure to environmental toxicants or other stimuli. DNA array technology could help researchers understand how organisms function in response to exposure by elucidating the molecular mechanisms that underlie them. DNA arrays have been developed and refined over the past 5 years and matured into a relatively accessible and affordable technology. They vary in design from membrane-based filters with a few hundred cDNAs, to glass-based `chips' with tens of thousands of genetic elements. Mammalian DNA arrays will soon allow expression analysis on a genome-wide scale, similar to that already accomplished in some lower organisms (e.g. S. cerevisiae, E. coli). These whole-genome arrays will be powerful tools for identifying and characterizing toxicants in environmental and pharmaceutical science. This review discusses the technology behind the production of DNA arrays, the options available to those interested in applying them to their own research, and the possible toxicological applications of this exciting new technology. JF - Xenobiotica AU - Rockett, J C AU - Dix, D J AD - Reproductive Toxicology Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA, rockett.john@epa.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 155 EP - 177 VL - 30 IS - 2 SN - 0049-8254, 0049-8254 KW - DNA arrays KW - Toxicology Abstracts KW - Genetic engineering KW - Reviews KW - DNA KW - Toxicology KW - X 24250:Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17695563?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Xenobiotica&rft.atitle=DNA+arrays%3A+technology%2C+options+and+toxicological+applications&rft.au=Rockett%2C+J+C%3BDix%2C+D+J&rft.aulast=Rockett&rft.aufirst=J&rft.date=2000-02-01&rft.volume=30&rft.issue=2&rft.spage=155&rft.isbn=&rft.btitle=&rft.title=Xenobiotica&rft.issn=00498254&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Toxicology; DNA; Reviews; Genetic engineering ER - TY - JOUR T1 - Emissions from Two Outboard Engines Operating on Reformulated Gasoline Containing MTBE AN - 17654038; 4707123 AB - Air and water pollutant emissions were measured from two 9.9 HP outboard engines: a two-stroke Evinrude and its four-stroke Honda counterpart. In addition to the measurement of regulated air pollutants, speciated organic pollutants and particulate matter emissions were determined. Aqueous samples were analyzed for MTBE (methyl tert-butyl ether) and BTEX (benzene, toluene, ethylbenzene, and xylene) emission rates. Compared to the four-stroke engine, the two-stroke had dramatically higher levels of toxic organic and particulate matter emissions. The organic material emitted from the two-stroke engine resembles the test gasoline due to the predominance of unburned fuel. Emission rates for PM sub(10) (particulate matter with a diameter of 10 mu m or less) are equal to those for PM sub(2.5), implying that emitted particles are all in the respirable range. Aqueous emissions from the two-stroke are also higher: the two-stroke's BTEX and MTBE emissions are, on average, 5 and 24 times higher, respectively, and 3-10% of the MTBE fed to the engine is emitted to the water. Aqueous emission rates, expressed in brake-specific units, tend to increase with decreasing engine load, as do the atmospheric emission rates. JF - Environmental Science & Technology AU - Gabele, P A AU - Pyle, S M AD - U.S. Environmental Protection Agency, Source Apportionment and Characterization Branch, Mail Drop 46, Research Triangle Park, North Carolina 27711, USA, gabele.peter@epamail.epa.gov Y1 - 2000/02/01/ PY - 2000 DA - 2000 Feb 01 SP - 368 EP - 372 VL - 34 IS - 3 SN - 0013-936X, 0013-936X KW - BTEX KW - MTBE KW - benzene KW - Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts KW - Pollution (Air) KW - Gasoline KW - Fuels KW - Toluene KW - Particulates KW - Comparative studies KW - Xylene KW - Particulate Matter KW - Emission measurements KW - Sampling KW - Ethers KW - Petroleum fuels KW - Fuel KW - Marine transportation KW - Air pollution measurements KW - Air Pollution KW - Pollutant Identification KW - Particles KW - Comparison Studies KW - Internal combustion engines KW - P 0000:AIR POLLUTION KW - SW 3010:Identification of pollutants KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17654038?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Emissions+from+Two+Outboard+Engines+Operating+on+Reformulated+Gasoline+Containing+MTBE&rft.au=Gabele%2C+P+A%3BPyle%2C+S+M&rft.aulast=Gabele&rft.aufirst=P&rft.date=2000-02-01&rft.volume=34&rft.issue=3&rft.spage=368&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Xylene; Gasoline; Toluene; Fuels; Emission measurements; Particulates; Internal combustion engines; Marine transportation; Air pollution measurements; Particles; Comparative studies; Pollution (Air); Ethers; Sampling; Petroleum fuels; Pollutant Identification; Air Pollution; Comparison Studies; Particulate Matter; Fuel ER - TY - JOUR T1 - Effects of Ammonium Sulfate on Growth of Larval Northwestern Salamanders, Red-Legged and Pacific Treefrog Tadpoles, and Juvenile Fathead Minnows AN - 17653061; 4697010 AB - Schuytema and Nebeker (1999a) have shown that the toxicity of ammonium nitrate, ammonium sulfate and ammonium chloride in static-renewal tests is essentially the same for the Pacific treefrog, Pseudacris regilla, due to the ammonium ion. Where the use of ammonium compounds is widespread chronic effects could be important. Schuytema and Nebeker (1999a, 1999b) have conducted 10-day static-renewal tests with embryos and tadpoles of P. regilla and have shown significant effects as low as 6.9 mg/L NH sub(4)-N for embryos and 24.6 mg/L for tadpoles. The purpose of this study was to determine effects of ammonium sulfate in flow-through tests, a representative of several ammonium compounds used to add nitrogen to the soil, on growth of three native amphibian species and one introduced fish species. The four species are all residents of the Willamette Valley of western Oregon. The Northwestern salamander Ambystoma gracile and the Pacific treefrog Pseudacris regilla continue to thrive in lowland areas. Historically the red-legged frog Rana aurora was more common than it is today, and the fathead minnow is a relative newcomer to the valley. JF - Bulletin of Environmental Contamination and Toxicology AU - Nebeker, A V AU - Schuytema, G S AD - U.S. Environmental Protection Agency, National Health and Ecological Effects Research Laboratory, Western Ecology Division, 200 S.W. 35th Street, Corvallis, OR 97333, USA Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 271 EP - 278 VL - 64 IS - 2 SN - 0007-4861, 0007-4861 KW - Pacific treefrog KW - Red-legged frog KW - Ambystoma gracile KW - Pseudacris regilla KW - Rana aurora KW - Reptilia KW - USA, Oregon KW - USA, Oregon, Willamette Valley KW - ammonium chloride KW - ammonium nitrate KW - ammonium sulfate KW - Pollution Abstracts; Toxicology Abstracts KW - Animals KW - Larvae KW - Pisces KW - Amphibia KW - Growth KW - Toxicity testing KW - Nitrogen KW - X 24134:Pathology KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17653061?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.atitle=Effects+of+Ammonium+Sulfate+on+Growth+of+Larval+Northwestern+Salamanders%2C+Red-Legged+and+Pacific+Treefrog+Tadpoles%2C+and+Juvenile+Fathead+Minnows&rft.au=Nebeker%2C+A+V%3BSchuytema%2C+G+S&rft.aulast=Nebeker&rft.aufirst=A&rft.date=2000-02-01&rft.volume=64&rft.issue=2&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.issn=00074861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudacris regilla; Rana aurora; Toxicity testing; Growth; Animals; Pisces; Amphibia; Larvae; Nitrogen ER - TY - JOUR T1 - Emissions of Polychlorinated Dibenzo-p-dioxins and Polychlorinated Dibenzofurans from the Open Burning of Household Waste in Barrels AN - 17651565; 4707124 AB - Backyard burning of household waste in barrels is a common waste disposal practice for which pollutant emissions have not been well characterized. This study measured the emissions of several pollutants, including polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDDs/PCDFs), from burning mixtures designed to simulate waste generated by a "recycling" and a "nonrecycling" family in a 208-L (55-gal) burn barrel at the EPA's Open Burning Test Facility. This paper focuses on the PCDD/PCDF emissions and discusses the factors influencing PCDD/PCDF formation for different test burns. Four test burns were made in which the amount of waste placed in the barrel varied from 6.4 to 13.6 kg and the amount actually burned varied from 46.6% to 68.1%. Emissions of total PCDDs/PCDFs ranged between 0.0046 and 0.48 mg/kg of waste burned. Emissions are also presented in terms of 2,3,7,8-TCDD toxic equivalents. Emissions of PCDDs/PCDFs appear to correlate with both copper and hydrochloric acid emissions. The results of this study indicate that backyard burning emits more PCDDs/PCDFs on a mass of refuse burned basis than various types of municipal waste combustors (MWCs). Comparison of burn barrel emissions to emissions from a hypothetical modern MWC equipped with high-efficiency flue gas cleaning technology indicates that about 2-40 households burning their trash daily in barrels can produce average PCDD/PCDF emissions comparable to a 182 000 kg/day (200 ton/day) MWC facility. This study provides important data on a potentially significant source of emissions of PCDDs/PCDFs. JF - Environmental Science & Technology AU - Lemieux, P M AU - Lutes, C C AU - Abbott, JA AU - Aldous, K M AD - National Risk Management Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA, lemieux.paul@epa.gov Y1 - 2000/02/01/ PY - 2000 DA - 2000 Feb 01 SP - 377 EP - 384 VL - 34 IS - 3 SN - 0013-936X, 0013-936X KW - Pollution Abstracts KW - Combustion products KW - Air pollution KW - Incineration KW - PCDF KW - Emissions KW - Waste disposal KW - PCDD KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17651565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Emissions+of+Polychlorinated+Dibenzo-p-dioxins+and+Polychlorinated+Dibenzofurans+from+the+Open+Burning+of+Household+Waste+in+Barrels&rft.au=Lemieux%2C+P+M%3BLutes%2C+C+C%3BAbbott%2C+JA%3BAldous%2C+K+M&rft.aulast=Lemieux&rft.aufirst=P&rft.date=2000-02-01&rft.volume=34&rft.issue=3&rft.spage=377&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Waste disposal; Incineration; Emissions; Combustion products; PCDD; PCDF; Air pollution ER - TY - JOUR T1 - Variation in the population dynamics of the intertidal pulmonate gastropod Salinator solida Martens (Gastropoda: Amphibolidae) at Towra Point, NSW, Australia AN - 17607746; 4729009 AB - This paper describes variation in the population dynamics of the intertidal pulmonate gastropod Salinator solida among mangrove and saltmarsh habitats at Towra Point, NSW, Australia over a two-year period. In general, this paper describes the degree to which the density of the populations fluctuated and the size structure of the populations varied among heights on shore. The density of individuals in the upper mangrove forest was most variable through time and their population size structure was dominated by smaller individuals. The density of populations in the Sarcocornia high on the shore fluctuated least through time and were dominated by large individuals. Those populations found on the mid-shore in the Sarcocornia had population characteristics intermediate to those populations in the upper mangrove forest and the Sarcocornia high on the shore. Analysis of size frequency data indicated that the growth rates of individuals and their annual mortality decreased with increasing height on shore. JF - Wetlands Ecology and Management AU - Roach, A C AU - Lim, R P AD - Water Studies Section, Environment Protection Authority, New South Wales, Locked Bag 1502, Bankstown, NSW 2200 Australia, roacht@epa.nsw.gov.au Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 53 EP - 69 VL - 8 IS - 1 SN - 0923-4861, 0923-4861 KW - Australia, New South Wales KW - variations KW - Ecology Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - PSE, Australia, New South Wales, Towra Point KW - Salt marshes KW - Mangrove swamps KW - Salinator solida KW - Population dynamics KW - Intertidal environment KW - O 1070:Ecology/Community Studies KW - D 04658:Molluscs KW - Q1 08442:Population dynamics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17607746?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wetlands+Ecology+and+Management&rft.atitle=Variation+in+the+population+dynamics+of+the+intertidal+pulmonate+gastropod+Salinator+solida+Martens+%28Gastropoda%3A+Amphibolidae%29+at+Towra+Point%2C+NSW%2C+Australia&rft.au=Roach%2C+A+C%3BLim%2C+R+P&rft.aulast=Roach&rft.aufirst=A&rft.date=2000-02-01&rft.volume=8&rft.issue=1&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Wetlands+Ecology+and+Management&rft.issn=09234861&rft_id=info:doi/10.1023%2FA%3A1008420104621 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Salt marshes; Mangrove swamps; Population dynamics; Intertidal environment; Salinator solida; PSE, Australia, New South Wales, Towra Point DO - http://dx.doi.org/10.1023/A:1008420104621 ER - TY - JOUR T1 - An outbreak of Escherichia coli O157:H7 infections and haemolytic uraemic syndrome associated with consumption of unpasteurized apple cider AN - 17597603; 4719464 AB - During October 1996, an outbreak of Escherichia coli O157:H7 infections among Connecticut residents occurred. An epidemiologic investigation included enhanced surveillance and a case-control study. Clinical isolates of Escherichia coli O157:H7 were typed by pulsed-field gel electrophoresis (PFGE). Implicated cider samples were analysed by culture and polymerase chain reaction (PCR). Consumption of implicated cider was associated with illness; (matched odds ratio = undefined, 95% confidence interval = 3.5-infinity). Ultimately, a total of 14 outbreak-associated patients were identified. All isolates analysed by PFGE yielded the outbreak-associated subtype. Escherichia coli O157:H7 was not cultured from three cider samples; PCR analysis detected DNA fragments consistent with Escherichia coli O157:H7 in one. This outbreak was associated with drinking one brand of unpasteurized apple cider. PFGE subtyping supported the epidemiologic association. PCR analysis detected microbial contaminants in the absence of live organisms. Washing and brushing apples did not prevent cider contamination. JF - Epidemiology and Infection AU - Hilborn, ED AU - Mshar, P A AU - Fiorentino, T R AU - Dembek, Z F AU - Barrett, T J AU - Howard, R T AU - Cartter, M L AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mail Drop 58A, Research Triangle Park, NC 27711, USA Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 31 EP - 36 VL - 124 IS - 1 SN - 0950-2688, 0950-2688 KW - Escherichia coli KW - USA, Connecticut KW - apple cider KW - hemolytic uremic syndrome KW - outbreaks KW - pasteurization KW - Health & Safety Science Abstracts; Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Food contamination KW - Surveillance KW - Pasteurization KW - Epidemiology KW - Pulsed-field gel electrophoresis KW - A 01017:Human foods KW - H 4000:Food and Drugs KW - J 02846:Gastrointestinal tract UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17597603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Epidemiology+and+Infection&rft.atitle=An+outbreak+of+Escherichia+coli+O157%3AH7+infections+and+haemolytic+uraemic+syndrome+associated+with+consumption+of+unpasteurized+apple+cider&rft.au=Hilborn%2C+ED%3BMshar%2C+P+A%3BFiorentino%2C+T+R%3BDembek%2C+Z+F%3BBarrett%2C+T+J%3BHoward%2C+R+T%3BCartter%2C+M+L&rft.aulast=Hilborn&rft.aufirst=ED&rft.date=2000-02-01&rft.volume=124&rft.issue=1&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Epidemiology+and+Infection&rft.issn=09502688&rft_id=info:doi/10.1017%2FS0950268899003258 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Escherichia coli; Food contamination; Pasteurization; Epidemiology; Surveillance; Pulsed-field gel electrophoresis DO - http://dx.doi.org/10.1017/S0950268899003258 ER - TY - JOUR T1 - Mercury Induces Regional and Cell-Specific Stress Protein Expression in Rat Kidney AN - 17527978; 4705281 AB - Cells respond to physiologic stress by enhancing the expression of specific stress proteins. Heat-shock proteins (hsps) and glucose-regulated proteins (grps) are members of a large superfamily of proteins collectively referred to as stress proteins. This particular stress-protein response has evolved as a cellular strategy to protect, repair, and chaperone other essential cellular proteins. The objective of this study was to evaluate the differential expression of four hsps in the renal cortex and medulla during experimental nephrotoxic injury using HgCl sub(2). Male Sprague-Dawley rats received single injections of HgCl sub(2) (0.25, 0.5, or 1 mg Hg/kg, iv). At 4, 8, 16, or 24 h after exposure, kidneys were removed and processed for histopathologic, immunoblot, and immunohistochemical analyses. Nephrosis was characterized as minimal or mild (cytoplasmic condensation, tubular epithelial degeneration, single cell necrosis) at the lower exposures, and progressed to moderate or severe (nuclear pyknosis, necrotic foci, sloughing of the epithelial casts into tubular lumens) at the highest exposures. Western blots of renal proteins were probed with monoclonal antibodies specific for 4 hsps. In whole kidney, Hg(II) induced a time- and dose-related accumulation of hsp72 and grp94. Accumulation of hsp72 was predominantly localized in the cortex and not medulla, while grp94 accumulated primarily in the medulla but not cortex. The high, constitutive expression of hsp73 did not change as a result of Hg(II) exposure, and it was equally localized in cortex and medulla. Hsp90 was not detected in kidneys of control or Hg-treated rats. Since hsp72 has been shown involved in cellular repair and recovery, and since Hg(II) damage occurs primarily in cortex, we investigated the cell-specific expression of this hsp. Hsp72 accumulated primarily in undamaged distal convoluted tubule epithelia, with less accumulation in undamaged proximal convoluted-tubule epithelia. These results demonstrate that expression of specific stress proteins in rat kidney exhibits regional heterogeneity in response to Hg(II) exposure, and a positive correlation exists between accumulation of some stress proteins and acute renal cell injury. While the role of accumulation of hsps and other stress proteins in vivo prior to or concurrent with nephrotoxicity remains to be completely understood, these stress proteins may be part of a cellular defense response to nephrotoxicants. Conversely, renal tubular epithelial cells that do not or are unable to express stress proteins, such as hsp72, may be more susceptible to nephrotoxicity. JF - Toxicological Sciences AU - Goering, P L AU - Fisher, B R AU - Noren, B T AU - Papaconstatinou, A AU - Rojko, J L AU - Marler, R J AD - Health Sciences Branch, Division of Life Sciences, Office of Science and Technology, Center for Devices and Radiological Health, Food and Drug Administration, Rockville, Maryland 20857, USA Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 447 EP - 457 PB - Academic Press, Inc. VL - 53 IS - 2 SN - 1096-6080, 1096-6080 KW - rats KW - stress proteins KW - Toxicology Abstracts KW - Gene expression KW - Heavy metals KW - Kidney KW - Mercury KW - X 24165:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17527978?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Mercury+Induces+Regional+and+Cell-Specific+Stress+Protein+Expression+in+Rat+Kidney&rft.au=Goering%2C+P+L%3BFisher%2C+B+R%3BNoren%2C+B+T%3BPapaconstatinou%2C+A%3BRojko%2C+J+L%3BMarler%2C+R+J&rft.aulast=Goering&rft.aufirst=P&rft.date=2000-02-01&rft.volume=53&rft.issue=2&rft.spage=447&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Mercury; Heavy metals; Gene expression; Kidney ER - TY - JOUR T1 - Atrazine Disrupts the Hypothalamic Control of Pituitary-Ovarian Function AN - 17527356; 4705266 AB - The chloro-S-triazine herbicides (i.e., atrazine, simazine, cyanazine) constitute the largest group of herbicides sold in the United States. Despite their extensive usage, relatively little is known about the possible human-health effects and mechanism(s) of action of these compounds. Previous studies in our laboratory have shown that the chlorotriazines disrupt the hormonal control of ovarian cycles. Results from these studies led us to hypothesize that these herbicides disrupt endocrine function primarily through their action on the central nervous system. To evaluate this hypothesis, we examined the estrogen-induced surges of luteinizing hormone (LH) and prolactin in ovariectomized Sprague-Dawley (SD) and Long-Evans hooded (LE) rats treated with atrazine (50-300 mg/kg/day, by gavage) for 1, 3, or 21 days. One dose of atrazine (300 mg/kg) suppressed the LH and prolactin surge in ovariectomized LE, but not SD female rats. Atrazine (300 mg/kg) administered to intact LE females on the day of vaginal proestrus was without effect on ovulation but did induce a pseudopregnancy in 7 of 9 females. Three daily doses of atrazine suppressed the estrogen-induced LH and prolactin surges in ovariectomized LE females in a dose-dependent manner, but this same treatment was without effect on serum LH and prolactin in SD females. The estrogen-induced surges of both pituitary hormones were suppressed by atrazine (75-300 mg/kg/day) in a dose-dependent manner in females of both strains evaluated after 21 days of treatment. Three experiments were then performed to determine whether the brain, pituitary, or both organs were the target sites for the chlorotriazines. These included examination of the ability of (1) the pituitary lactotrophs to secrete prolactin, using hypophyosectomized females bearing pituitary autotransplants (ectopic pituitaries); (2) the synthetic gonadotropin-releasing hormone (GnR-H) to induce LH secretion in females treated with high concentrations of atrazine for 3 days; and (3) atrazine (administered in vivo or in vitro) to suppress LH and prolactin secretion from pituitaries, using a flow-through perifusion procedure. In conclusion, the results of these studies demonstrate that atrazine alters LH and prolactin serum levels in the LE and SD female rats by altering the hypothalamic control of these hormones. In this regard, the LE female appeared to be more sensitive to the hormone suppressive effects of atrazine, as indicated by the decreases observed on treatment-day 3. These experiments support the hypothesis that the effect of atrazine on LH and prolactin secretion is mediated via a hypothalamic site of action. JF - Toxicological Sciences AU - Cooper, R L AU - Stoker, TE AU - Tyrey, L AU - Goldman, J M AU - McElroy, W K AD - Endocrinology Branch, Reproductive Toxicology Division, National Health and Environmental Effects Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 297 EP - 307 PB - Academic Press, Inc. VL - 53 IS - 2 SN - 1096-6080, 1096-6080 KW - rats KW - prolactin KW - Toxicology Abstracts KW - Hypothalamus KW - Pituitary KW - Luteinizing hormone KW - Atrazine KW - Herbicides KW - Ovaries KW - X 24135:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17527356?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Atrazine+Disrupts+the+Hypothalamic+Control+of+Pituitary-Ovarian+Function&rft.au=Cooper%2C+R+L%3BStoker%2C+TE%3BTyrey%2C+L%3BGoldman%2C+J+M%3BMcElroy%2C+W+K&rft.aulast=Cooper&rft.aufirst=R&rft.date=2000-02-01&rft.volume=53&rft.issue=2&rft.spage=297&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Herbicides; Atrazine; Pituitary; Hypothalamus; Ovaries; Luteinizing hormone ER - TY - JOUR T1 - Cross-site comparison of soil microbial biomass, soil nutrient status, and nematode trophic groups AN - 17518059; 4698529 AB - Soil microbial biomass, soil nutrient status, and nematode trophic groups were examined at the Coweeta, Harvard Forest, and Hubbard Brook Long Term Ecological Research (LTER) sites. Soils were divided into standardized depths (0-5 cm and 5-10 cm) for all analyses. Microbial biomass, nematode abundance and labile soil phosphorus levels were significantly higher in the 0-5 cm soil than in the 5-10 cm soil. Overall, both Harvard Forest and Hubbard Brook had greater nematode abundance and soil phosphorus than Coweeta, while Harvard Forest had the highest levels of microbial biomass. Bacterial feeders, followed by fungal feeders and Tylenchidae were the dominant nematode trophic groups at all three sites. Soil factors such as organic matter, root biomass and total soil C and N contributed to increased levels of microbial biomass, nematode abundance and soil phosphorus levels. In contrast, litter quality and climatic factors such as temperature and moisture apparently had little effect upon the parameters measured. This study illustrates the complex interrelationships between decomposer communities, climate, litter quantity, litter quality, soil nutrients, and site specific ecosystem processes. Continued long-term, cross-site ecosystem studies remain necessary to better understand the complex and dynamic processes causing variability both within and between ecosystems. JF - Pedobiologia AU - Wright, C J AU - Coleman, D C AD - US-EPA/ERD/EAB 960 College Station Rd, Athens, GA 30605, USA Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 2 EP - 23 VL - 44 IS - 1 SN - 0031-4056, 0031-4056 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Litter KW - Communities KW - Organic matter KW - Phosphorus KW - Biomass KW - Nutrient status KW - Soil microorganisms KW - A 01047:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17518059?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Pedobiologia&rft.atitle=Cross-site+comparison+of+soil+microbial+biomass%2C+soil+nutrient+status%2C+and+nematode+trophic+groups&rft.au=Wright%2C+C+J%3BColeman%2C+D+C&rft.aulast=Wright&rft.aufirst=C&rft.date=2000-02-01&rft.volume=44&rft.issue=1&rft.spage=2&rft.isbn=&rft.btitle=&rft.title=Pedobiologia&rft.issn=00314056&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Soil microorganisms; Biomass; Nutrient status; Organic matter; Phosphorus; Communities; Litter ER - TY - JOUR T1 - Organic contaminant distributions in sediments, polychaetes (Nereis virens) and American lobster (Homarus americanus) from a laboratory food chain experiment AN - 17515052; 4701279 AB - A laboratory experiment was conducted to investigate the transfer of organic contaminants from an environmentally contaminated marine sediment through a simple marine food chain. The infaunal polychaete, Nereis virens, was exposed to contaminated sediment collected from the Passaic River, NJ, USA, for 70 days. These polychaetes were then fed to the American lobster, Homarus americanus, for up to 112 days. Polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), 2,4,6,8-tetrachlorodibenzothiophene (TCDT), polychlorinated biphenyls (PCBs), and several chlorinated pesticides were accumulated by polychaetes following exposure to the contaminated sediment. Some of these contaminants were also accumulated by lobsters which were exposed to the contaminated sediment and/or fed contaminated polychaetes. Only the lesser chlorinated PCDDs and PCDFs (mostly tetra- and pentachlorinated congeners) and 2,4,6,8-TCDT were detected in the polychaetes and lobster. Significant alterations were noted in the PCB patterns found in both species, particularly the lobster. The non-ortho-substituted PCBs (such as congeners 77 and 126) became enriched in the PCB mixtures of the polychaetes and especially the lobsters relative to the sediment, probably because these congeners were not metabolized. These congeners and the 2,3,7,8-tetrachlorodibenzo-p-dioxin toxicity equivalents of the PCB mixtures were enriched by a factor of about six in the lobsters relative to the sediment. Elimination of PCB congeners containing vicinal hydrogens in the meta-para region is consistent with cytochrome P450IIB-type metabolism. Based on the concentration trends for some PCB congeners and chlorinated pesticide ratios measured in the lobsters during this experiment, it appears that this metabolic system is inducible in the American lobster. JF - Marine Environmental Research AU - Pruell, R J AU - Taplin, B K AU - McGovern, D G AU - McKinney, R AU - Norton, S B AD - National Health and Ecological Effects Laboratory, US Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA, pruell.richard@epa.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 19 EP - 36 VL - 49 IS - 1 SN - 0141-1136, 0141-1136 KW - American lobster KW - 2,4,6,8-tetrachlorodibenzothiophene KW - Homarus americanus KW - Nereis virens KW - Polychaeta KW - USA, New Jersey, Passaic R. KW - Pollution Abstracts; Oceanic Abstracts KW - Food chains KW - Contamination KW - PCDF KW - PCB compounds KW - PCDD KW - Sediment pollution KW - Chlorinated hydrocarbons KW - Bioaccumulation KW - Marine pollution KW - Pesticides KW - Controlled conditions KW - Organic compounds KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - P 1000:MARINE POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17515052?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Environmental+Research&rft.atitle=Organic+contaminant+distributions+in+sediments%2C+polychaetes+%28Nereis+virens%29+and+American+lobster+%28Homarus+americanus%29+from+a+laboratory+food+chain+experiment&rft.au=Pruell%2C+R+J%3BTaplin%2C+B+K%3BMcGovern%2C+D+G%3BMcKinney%2C+R%3BNorton%2C+S+B&rft.aulast=Pruell&rft.aufirst=R&rft.date=2000-02-01&rft.volume=49&rft.issue=1&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=Marine+Environmental+Research&rft.issn=01411136&rft_id=info:doi/10.1016%2FS0141-1136%2899%2900046-X LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Nereis virens; Homarus americanus; Marine pollution; Sediment pollution; Contamination; Food chains; PCDD; PCDF; PCB compounds; Pesticides; Bioaccumulation; Organic compounds; Chlorinated hydrocarbons; Controlled conditions DO - http://dx.doi.org/10.1016/S0141-1136(99)00046-X ER - TY - JOUR T1 - Forest fragmentation as an economic indicator AN - 17508968; 4695313 AB - Despite concern over the ecological consequences of conversion of land from natural cover to anthropogenic uses, there are few studies that show a quantitative relationship between fragmentation and economic factors. For the southside economic region of Virginia, we generated a surface (map) of urbanization pressure by interpolation of population from a ring of cities surrounding the region. The interpolated map showed a geographic gradient of urbanization pressure or demand for land that increased from northwest to southeast. Estimates of forest fragmentation were moderately correlated with the geographic gradient of urbanization pressure. The fragmentation-urbanization relationship was corroborated by examining land-cover change against the urbanization map. The geographic gradient in land-cover change was strongly correlated with the urbanization pressure gradient. The correspondence between geographic gradients in land-cover change and urbanization pressure suggests that forest fragmentation will occur at a greater rate in the eastern portion of the southside economic region in the future. JF - Landscape Ecology AU - Wickham, J D AU - O'Neill, R V AU - Jones, K B AD - U.S. Environmental Protection Agency, MD-56, Research Triangle Park, NC 27711, USA, wickham.james@epamail.epa.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 171 EP - 179 VL - 15 IS - 2 SN - 0921-2973, 0921-2973 KW - USA, Virginia KW - Ecology Abstracts KW - Urbanization KW - Economics KW - Forests KW - Habitat fragmentation KW - D 04695:Urban environments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17508968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Landscape+Ecology&rft.atitle=Forest+fragmentation+as+an+economic+indicator&rft.au=Wickham%2C+J+D%3BO%27Neill%2C+R+V%3BJones%2C+K+B&rft.aulast=Wickham&rft.aufirst=J&rft.date=2000-02-01&rft.volume=15&rft.issue=2&rft.spage=171&rft.isbn=&rft.btitle=&rft.title=Landscape+Ecology&rft.issn=09212973&rft_id=info:doi/10.1023%2FA%3A1008133426199 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Habitat fragmentation; Forests; Economics; Urbanization DO - http://dx.doi.org/10.1023/A:1008133426199 ER - TY - JOUR T1 - After the 1993 flood; a water and surficial bed sediment quality scenario on the Illinois and upper Mississippi Rivers AN - 1416690484; 2013-060148 JF - Journal of the American Water Resources Association AU - Soong, TaWei AU - Ettinger, William H Y1 - 2000/02// PY - 2000 DA - February 2000 SP - 105 EP - 121 PB - Wiley Interscience on behalf of American Water Resources Association, Middleburg, VA VL - 36 IS - 1 SN - 1093-474X, 1093-474X KW - United States KW - water quality KW - Lee County Iowa KW - Hardin Illinois KW - geologic hazards KW - suspended materials KW - Fulton Iowa KW - Iowa KW - Webster County Iowa KW - size distribution KW - transport KW - dams KW - Thebes Illinois KW - sediments KW - floods KW - ecology KW - Calhoun County Illinois KW - Pike County Illinois KW - Mississippi River KW - Alexander County Illinois KW - Illinois KW - sediment transport KW - pollutants KW - grain size KW - pollution KW - Illinois River KW - Keokuk Iowa KW - nutrients KW - organic compounds KW - metals KW - natural hazards KW - seasonal variations KW - pesticides KW - Valley City Illinois KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1416690484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=After+the+1993+flood%3B+a+water+and+surficial+bed+sediment+quality+scenario+on+the+Illinois+and+upper+Mississippi+Rivers&rft.au=Soong%2C+TaWei%3BEttinger%2C+William+H&rft.aulast=Soong&rft.aufirst=TaWei&rft.date=2000-02-01&rft.volume=36&rft.issue=1&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/10.1111%2Fj.1752-1688.2000.tb04253.x L2 - http://www.wiley.com/bw/journal.asp?ref=1093-474X&site=1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Number of references - 37 N1 - PubXState - VA N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2013-08-02 N1 - SubjectsTermNotLitGenreText - Alexander County Illinois; Calhoun County Illinois; dams; ecology; floods; Fulton Iowa; geologic hazards; grain size; Hardin Illinois; Illinois; Illinois River; Iowa; Keokuk Iowa; Lee County Iowa; metals; Mississippi River; natural hazards; nutrients; organic compounds; pesticides; Pike County Illinois; pollutants; pollution; seasonal variations; sediment transport; sediments; size distribution; suspended materials; Thebes Illinois; transport; United States; Valley City Illinois; water quality; Webster County Iowa DO - http://dx.doi.org/10.1111/j.1752-1688.2000.tb04253.x ER - TY - JOUR T1 - Determination of interfering triazine degradation products by gas chromatography-ion trap mass spectrometry. AN - 70917499; 10677085 AB - Deethylatrazine (DEA), an atrazine degradation product, has been added to the US Environmental Protection Agency's Drinking Water Contaminant Candidate List (CCL). In its gas chromatographic analysis, DEA can coelute with deisopropylatrazine (DIA), another degradation product. The present work demonstrates that the coelution of DEA and DIA can induce a significant (up to approximately 50%) positive bias in the DEA determination, when using an ion-trap mass spectrometer as the detector. The DIA determination is unaffected by the coelution within experimental error. This may be explained in terms of gas-phase ion fragment populations. A correction factor to the observed DEA concentration may be developed based on the measured DIA concentration. JF - Journal of chromatography. A AU - Magnuson, M L AU - Speth, T F AU - Kelty, C A AD - United States Environmental Protection Agency, National Risk Management Research Laboratory, Water Supply and Water Resources Division, Treatment Technology Evaluation Branch, Cincinnati, OH 45268, USA. magnuson.matthew@epa.gov Y1 - 2000/01/28/ PY - 2000 DA - 2000 Jan 28 SP - 115 EP - 119 VL - 868 IS - 1 SN - 0021-9673, 0021-9673 KW - Herbicides KW - 0 KW - Water Pollutants KW - 6-deisopropylatrazine KW - 1007-28-9 KW - 4-deethylatrazine KW - 6190-65-4 KW - Atrazine KW - QJA9M5H4IM KW - Index Medicus KW - Atrazine -- analogs & derivatives KW - Atrazine -- analysis KW - Atrazine -- metabolism KW - Quality Control KW - Water Pollutants -- analysis KW - Herbicides -- metabolism KW - Gas Chromatography-Mass Spectrometry -- methods KW - Herbicides -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70917499?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+chromatography.+A&rft.atitle=Determination+of+interfering+triazine+degradation+products+by+gas+chromatography-ion+trap+mass+spectrometry.&rft.au=Magnuson%2C+M+L%3BSpeth%2C+T+F%3BKelty%2C+C+A&rft.aulast=Magnuson&rft.aufirst=M&rft.date=2000-01-28&rft.volume=868&rft.issue=1&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Journal+of+chromatography.+A&rft.issn=00219673&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-02-25 N1 - Date created - 2000-02-25 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effect of Cofiring Coal on Formation of Polychlorinated Dibenzo-p-Dioxins and Dibenzofurans during Waste Combustion AN - 17653495; 4707827 AB - The effect of cofiring coal with municipal waste on formation of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) was examined by cofiring minor amounts (<7% by wt) of high (3.4% by wt) or low (0.7% by wt) sulfur (S) coal in a municipal waste combustor. PCDD/F concentrations were reduced up to 80% during the 13-run, 6-day effort. Both current and past operating conditions (fuel type and rate, gas concentrations) had an effect on current levels of PCDD/F formation. The influence of past conditions is consistent with a PCDD/F formation mechanism involving combustor wall deposits as sites for formation and indicates that PCDD/F measurements on field units may be affected in part by past operating conditions, at least up to 6 h. These wall deposits act as sources and receptors of PCDD/F precursors, reactants, and/or catalysts. It is proposed that an effect of higher sulfur dioxide concentration from cofiring coal is to displace the sulfate/chloride equilibrium in the deposits, thereby decreasing chlorine contact with active sites and/or reducing catalytic activity through formation of metal sulfates rather than metal chlorides. PCDD versus PCDF levels were affected by mostly different operating parameters, suggesting that their mechanisms of formation are somewhat distinct. JF - Environmental Science & Technology AU - Gullett, B K AU - Dunn, JE AU - Raghunathan, K AD - Air Pollution Prevention and Control Division, National Risk Management Research Laboratory, U.S. Environmental Protection Agency (MD-65), Research Triangle Park, North Carolina 27711, USA, gullett.brian@epa.gov Y1 - 2000/01/15/ PY - 2000 DA - 2000 Jan 15 SP - 282 EP - 290 VL - 34 IS - 2 SN - 0013-936X, 0013-936X KW - Pollution Abstracts KW - Sulfates KW - Chlorides KW - Waste treatment KW - Coal KW - Municipal solid wastes KW - Combustion KW - Air pollution KW - PCDF KW - PCDD KW - P 0000:AIR POLLUTION KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17653495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Effect+of+Cofiring+Coal+on+Formation+of+Polychlorinated+Dibenzo-p-Dioxins+and+Dibenzofurans+during+Waste+Combustion&rft.au=Gullett%2C+B+K%3BDunn%2C+JE%3BRaghunathan%2C+K&rft.aulast=Gullett&rft.aufirst=B&rft.date=2000-01-15&rft.volume=34&rft.issue=2&rft.spage=282&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Coal; Waste treatment; Combustion; Municipal solid wastes; PCDD; PCDF; Chlorides; Sulfates; Air pollution ER - TY - JOUR T1 - U.S. Environmental Protection Agency's revised guidelines for carcinogen risk assessment: evaluating a postulated mode of carcinogenic action in guiding dose-response extrapolation. AN - 70867240; 10633182 AB - There are new opportunities to using data from molecular and cellular studies in order to bring together a fuller biological understanding of how chemicals induce neoplasia. In 1996, the Environmental Protection Agency (EPA) published a proposal to replace its 1986 Guidelines for Carcinogen Risk Assessment to take advantage of these new scientific advances in cancer biology. The analytical framework within the new guidelines focuses on an understanding of the mode of carcinogenic action. Mode of action data come into play in a couple of ways in these new guidelines. For example, such information can inform the dose-response relationship below the experimental observable range of tumours. Thus, mode of action data can be useful in establishing more appropriate guidance levels for environmental contaminants. It is the understanding of the biological processes that lead to tumour development along with the response data derived from experimental studies that can help discern the shape of the dose-response at low doses (linear vs. nonlinear). Because it is experimentally difficult to establish "true thresholds" from others with a nonlinear dose-response relationship, the proposed guidelines take a practical approach to depart from low-dose linear extrapolation procedures when there is sufficient experimental support for a mode of action consistent with nonlinear biological processes (e.g., tumours resulting from the disruption of normal physiological processes). JF - Mutation research AU - Wiltse, J A AU - Dellarco, V L AD - Office of Science and Technology, Office of Water (4304), U.S. Environmental Protection Agency, 401 M Street, S.W., Washington, DC 20460, USA. Y1 - 2000/01/03/ PY - 2000 DA - 2000 Jan 03 SP - 105 EP - 115 VL - 464 IS - 1 SN - 0027-5107, 0027-5107 KW - Carcinogens KW - 0 KW - Index Medicus KW - United States KW - Animals KW - Humans KW - Carcinogenicity Tests KW - Guidelines as Topic KW - Risk Assessment KW - United States Environmental Protection Agency KW - Dose-Response Relationship, Drug KW - Carcinogens -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70867240?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+research&rft.atitle=U.S.+Environmental+Protection+Agency%27s+revised+guidelines+for+carcinogen+risk+assessment%3A+evaluating+a+postulated+mode+of+carcinogenic+action+in+guiding+dose-response+extrapolation.&rft.au=Wiltse%2C+J+A%3BDellarco%2C+V+L&rft.aulast=Wiltse&rft.aufirst=J&rft.date=2000-01-03&rft.volume=464&rft.issue=1&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Mutation+research&rft.issn=00275107&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-07-13 N1 - Date created - 2000-07-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A General Framework for Prioritizing Land Units for Ecological Protection and Restoration AN - 899153682; 15625114 JF - Environmental Management AU - Hyman, Jeffrey B AU - Leibowitz, Scott G AD - Dynamac Corp. Environmental Services, US EPA NHEERL, 200 SW 35th Street, Corvallis, Oregon 97333 USA , US Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 23 EP - 35 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 25 IS - 1 SN - 0364-152X, 0364-152X KW - Environment Abstracts; Ecology Abstracts KW - Ecology KW - Environmental protection KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/899153682?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Management&rft.atitle=A+General+Framework+for+Prioritizing+Land+Units+for+Ecological+Protection+and+Restoration&rft.au=Hyman%2C+Jeffrey+B%3BLeibowitz%2C+Scott+G&rft.aulast=Hyman&rft.aufirst=Jeffrey&rft.date=2000-01-01&rft.volume=25&rft.issue=1&rft.spage=23&rft.isbn=&rft.btitle=&rft.title=Environmental+Management&rft.issn=0364152X&rft_id=info:doi/10.1007%2Fs002679910003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2016-02-18 N1 - SubjectsTermNotLitGenreText - Ecology; Environmental protection DO - http://dx.doi.org/10.1007/s002679910003 ER - TY - JOUR T1 - The Role of Developmental Neurotoxicology Studies in Risk Assessment AN - 877595362; 13646027 AB - A number of questions have been raised about the use of the US Environmental Protection Agency's Developmental Neurotoxicity Testing Guideline (DNTG) in the hazard identification of chemicals. The applicability and sensitivity of animal tests in the DNTG relative to human developmental neurotoxicity have recently been questioned. In a workshop held in 1989, participants compared the effects of several known developmental neurotoxicants in humans and animal models and concluded that the DNTG would have detected known human developmental neurotoxicants. They also concluded that although procedural differences may differ in the testing of humans and animals, the neurobiologic functions (ie, autonomic, sensory, motor, and cognitive) affected by chemical exposure were similar. In cases where the DNTG has been compared with other measures of reproductive and developmental toxicity, the DNTG has been relatively sensitive and specific. To date, DNTGs have been required 12 times, for 9 pesticides and 3 solvents. The sensitivity of the measures in the DNTG relative to other measures of developmental and adult toxicity supports the continued use of the DNTG in risk assessment. JF - Toxicologic Pathology AU - Tilson, Hugh A AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, Research Triangle Park, North Carolina 27711 Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 149 EP - 156 PB - Sage Publications Ltd., 6 Bonhill St. London EC2A 4PU UK VL - 28 IS - 1 SN - 0192-6233, 0192-6233 KW - Toxicology Abstracts; CSA Neurosciences Abstracts KW - Risk assessment KW - Autonomic nervous system KW - Conferences KW - Cognitive ability KW - Neurotoxicity KW - Pesticides KW - Animal models KW - Solvents KW - N3 11028:Neuropharmacology & toxicology KW - X 24330:Agrochemicals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/877595362?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicologic+Pathology&rft.atitle=The+Role+of+Developmental+Neurotoxicology+Studies+in+Risk+Assessment&rft.au=Tilson%2C+Hugh+A&rft.aulast=Tilson&rft.aufirst=Hugh&rft.date=2000-01-01&rft.volume=28&rft.issue=1&rft.spage=149&rft.isbn=&rft.btitle=&rft.title=Toxicologic+Pathology&rft.issn=01926233&rft_id=info:doi/10.1177%2F019262330002800119 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Risk assessment; Autonomic nervous system; Conferences; Cognitive ability; Pesticides; Neurotoxicity; Solvents; Animal models DO - http://dx.doi.org/10.1177/019262330002800119 ER - TY - JOUR T1 - Distribution of selected volatile organic compounds determined with water-to-vapor diffusion samplers at the interface between ground water and surface water, Centredale Manor site, North Providence, Rhode Island, September 1999 AN - 742891724; 2000-080188 JF - Open-File Report - U. S. Geological Survey AU - Church, Peter E AU - Lyford, Forest P AU - Clifford, Scott Y1 - 2000 PY - 2000 DA - 2000 SP - 9 EP - 9, 1 sheet PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - chlorinated hydrocarbons KW - Rhode Island KW - tetrachloroethylene KW - environmental analysis KW - ground water KW - spatial distribution KW - Providence County Rhode Island KW - transport KW - sediments KW - halogenated hydrocarbons KW - USGS KW - geochemistry KW - Woonasquatucket River KW - soils KW - concentration KW - pollutants KW - surface water KW - pollution KW - hydrochemistry KW - measurement KW - volatiles KW - organic compounds KW - volatile organic compounds KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742891724?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Distribution+of+selected+volatile+organic+compounds+determined+with+water-to-vapor+diffusion+samplers+at+the+interface+between+ground+water+and+surface+water%2C+Centredale+Manor+site%2C+North+Providence%2C+Rhode+Island%2C+September+1999&rft.au=Church%2C+Peter+E%3BLyford%2C+Forest+P%3BClifford%2C+Scott&rft.aulast=Church&rft.aufirst=Peter&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://pubs.usgs.gov/of/2000/ofr00-276/ https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 8 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Prepared in cooperation with the U.S. Environmental Protection Agency N1 - Last updated - 2016-10-25 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - chlorinated hydrocarbons; concentration; environmental analysis; geochemistry; ground water; halogenated hydrocarbons; hydrochemistry; measurement; organic compounds; pollutants; pollution; Providence County Rhode Island; Rhode Island; sediments; soils; spatial distribution; surface water; tetrachloroethylene; transport; United States; USGS; volatile organic compounds; volatiles; Woonasquatucket River ER - TY - JOUR T1 - Transient modulation of gene expression in the neurulation staged mouse embryo. AN - 72423676; 11083117 AB - Transient modulation of gene expression in the embryo during early organogenesis will allow studies to be conducted that determine tissue- and stage-specific function(s) of genes. To achieve this goal, viral vectors and antisense oligodeoxynucleotides have been used to produce gain-of-function and loss-of-function models. Adenoviral transduction of whole embryos, embryonic heart and vasculature, and primary neural crest cell culture has been reported. The morphological consequences of overexpression or decreasing expression of selected genes have been evaluated using these tools. Gene-teratogen interaction studies have also been performed. The viral vectors appear to be important tools for modulating gene expression and hold great promise for future research. JF - Annals of the New York Academy of Sciences AU - Hunter, E S AU - Hartig, P AD - Reproductive Toxicology Division, National Health and Environmental Effects Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. Hunter.sid@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 278 EP - 283 VL - 919 SN - 0077-8923, 0077-8923 KW - Oligonucleotides, Antisense KW - 0 KW - Teratogens KW - Index Medicus KW - Animals KW - Genetic Vectors KW - Transduction, Genetic KW - Genes, Reporter KW - Teratogens -- toxicity KW - Teratogens -- pharmacology KW - Oligonucleotides, Antisense -- pharmacology KW - Mice KW - Adenoviridae -- genetics KW - Gene Expression Regulation, Developmental -- genetics KW - Embryo, Mammalian -- embryology KW - Embryonic and Fetal Development -- genetics KW - Embryo, Mammalian -- metabolism KW - Embryo, Mammalian -- drug effects KW - Gene Expression Regulation, Developmental -- drug effects KW - Embryonic and Fetal Development -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72423676?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+the+New+York+Academy+of+Sciences&rft.atitle=Transient+modulation+of+gene+expression+in+the+neurulation+staged+mouse+embryo.&rft.au=Hunter%2C+E+S%3BHartig%2C+P&rft.aulast=Hunter&rft.aufirst=E&rft.date=2000-01-01&rft.volume=919&rft.issue=&rft.spage=278&rft.isbn=&rft.btitle=&rft.title=Annals+of+the+New+York+Academy+of+Sciences&rft.issn=00778923&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-06 N1 - Date created - 2000-12-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Animal models to assess the effects of air pollutants on allergic lung disease. AN - 72423621; 11083113 AB - Animal models provide toxicologists with useful tools for assessing risks associated with respiratory allergy. Both the mouse and BN rat models described exhibit many of the features of human allergic asthma. It is clear that environmental contaminants can exacerbate the expression of these features. Work is under way to explore underlying mechanisms and to develop methods for applying these data to human health risk assessment. JF - Annals of the New York Academy of Sciences AU - Selgrade, M K AU - Lambert, A L AU - Ward, M D AU - Gilmour, M I AD - National Health and Environmental Effects Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. Selgrade.MaryJane@EPA.Gov Y1 - 2000 PY - 2000 DA - 2000 SP - 230 EP - 238 VL - 919 SN - 0077-8923, 0077-8923 KW - Air Pollutants KW - 0 KW - Allergens KW - Coal Ash KW - Cytokines KW - Particulate Matter KW - Immunoglobulin E KW - 37341-29-0 KW - Carbon KW - 7440-44-0 KW - Index Medicus KW - Rats KW - Animals KW - Cytokines -- genetics KW - Immunoglobulin E -- immunology KW - Fungi -- immunology KW - Carbon -- immunology KW - Mites -- immunology KW - Mice KW - Cytokines -- metabolism KW - Mice, Inbred BALB C KW - Carbon -- toxicity KW - Immunization KW - Allergens -- immunology KW - Hypersensitivity -- pathology KW - Hypersensitivity -- immunology KW - Air Pollutants -- immunology KW - Disease Models, Animal KW - Asthma -- chemically induced KW - Air Pollutants -- toxicity KW - Asthma -- pathology KW - Asthma -- immunology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72423621?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+the+New+York+Academy+of+Sciences&rft.atitle=Animal+models+to+assess+the+effects+of+air+pollutants+on+allergic+lung+disease.&rft.au=Selgrade%2C+M+K%3BLambert%2C+A+L%3BWard%2C+M+D%3BGilmour%2C+M+I&rft.aulast=Selgrade&rft.aufirst=M&rft.date=2000-01-01&rft.volume=919&rft.issue=&rft.spage=230&rft.isbn=&rft.btitle=&rft.title=Annals+of+the+New+York+Academy+of+Sciences&rft.issn=00778923&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-06 N1 - Date created - 2000-12-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Neurochemical effects of environmental chemicals: in vitro and in vivo correlations on second messenger pathways. AN - 72423581; 11083102 AB - Polychlorinated biphenyls (PCBs) are persistent, bioaccumulative, toxic, and widely distributed environmental chemicals. There is now both epidemiological and experimental evidence that PCBs cause cognitive deficits; however, the underlying cellular or molecular mechanism(s) is not known. We have hypothesized that altered signal transduction/second messenger homeostasis by PCBs may be associated with these effects since second messengers in signal transduction pathways, such as calcium, inositol phosphates (IP), and protein kinase C (PKC), play key roles in neuronal development and their function. In vitro studies using cerebellar granule neurons and isolated organelle preparations indicate that ortho-PCBs increase intracellular free Ca2+ levels by inhibiting microsomal and mitochondrial Ca2+ buffering and the Ca2+ extrusion process. Ortho-PCBs also increase agonist-stimulated IP accumulation and cause PKC translocation at low micromolar concentrations where no cytotoxicity is observed. On the other hand, non-ortho-PCBs are not effective in altering these events. Further SAR studies indicate that congeners with chlorine substitutions favoring non-coplanarity are active in vitro, while congeners favoring coplanarity are relatively inactive. Subsequent in vivo studies have shown that repeated exposure to a PCB mixture, Aroclor 1254, increases PKC translocation and decreases Ca2+ buffering in the brain, similar to in vitro studies. These changes in vivo are associated with elevated levels of non-coplanar ortho-PCB congeners at levels equivalent to 40-50 microM in brain, the concentrations that significantly inhibited second messenger systems in neuronal cultures in vitro. Current research is focusing on PCB-induced alterations in second messenger systems following developmental exposure. JF - Annals of the New York Academy of Sciences AU - Kodavanti, P R AU - Tilson, H A AD - Cellular and Molecular Toxicology Branch, Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. k. Y1 - 2000 PY - 2000 DA - 2000 SP - 97 EP - 105 VL - 919 SN - 0077-8923, 0077-8923 KW - Environmental Pollutants KW - 0 KW - Inositol Phosphates KW - Neurotoxins KW - Arachidonic Acid KW - 27YG812J1I KW - Polychlorinated Biphenyls KW - DFC2HB4I0K KW - Nitric Oxide Synthase KW - EC 1.14.13.39 KW - Protein Kinase C KW - EC 2.7.11.13 KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Rats KW - Protein Kinase C -- metabolism KW - Calcium -- metabolism KW - Brain -- enzymology KW - Animals KW - Rats, Long-Evans KW - Inositol Phosphates -- metabolism KW - Humans KW - Brain -- drug effects KW - Toxicity Tests KW - Brain -- metabolism KW - Nitric Oxide Synthase -- metabolism KW - Male KW - Arachidonic Acid -- metabolism KW - Environmental Pollutants -- pharmacology KW - Environmental Pollutants -- toxicity KW - Polychlorinated Biphenyls -- toxicity KW - Polychlorinated Biphenyls -- pharmacology KW - Second Messenger Systems -- drug effects KW - Polychlorinated Biphenyls -- chemistry KW - Neurotoxins -- pharmacology KW - Neurotoxins -- toxicity KW - Neurotoxins -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72423581?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+the+New+York+Academy+of+Sciences&rft.atitle=Neurochemical+effects+of+environmental+chemicals%3A+in+vitro+and+in+vivo+correlations+on+second+messenger+pathways.&rft.au=Kodavanti%2C+P+R%3BTilson%2C+H+A&rft.aulast=Kodavanti&rft.aufirst=P&rft.date=2000-01-01&rft.volume=919&rft.issue=&rft.spage=97&rft.isbn=&rft.btitle=&rft.title=Annals+of+the+New+York+Academy+of+Sciences&rft.issn=00778923&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-06 N1 - Date created - 2000-12-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - In vitro systems as simulations of in vivo conditions: the study of cognition and synaptic plasticity in neurotoxicology. AN - 72421719; 11083104 AB - Neuroscientists have been engaged for decades in the search for brain regions and brain processes that underlie learning and memory. The effects of regional brain stimulation and ablation on behavior have been documented and inferences made on the impact of these manipulations on the psychological constructs of "learning" and "memory". Discovery of an electrophysiological property, long-term potentiation (LTP), greatly expanded the ability to probe cellular aspects of how memories are represented in the brain. The study of LTP serves as an excellent example of how in vivo phenomena can be taken to more simplified in vitro test systems to directly address cellular and biochemical mechanisms of information storage in brain. JF - Annals of the New York Academy of Sciences AU - Gilbert, M E AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. gilbert.mary@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 119 EP - 132 VL - 919 SN - 0077-8923, 0077-8923 KW - Index Medicus KW - Animals KW - Conditioning, Classical KW - Fear KW - Humans KW - Space Perception KW - Memory -- physiology KW - Synaptic Transmission KW - Blinking -- physiology KW - Cognition -- physiology KW - Brain -- physiopathology KW - Long-Term Potentiation -- physiology KW - Learning -- physiology KW - Neuronal Plasticity -- physiology KW - Brain -- physiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72421719?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+the+New+York+Academy+of+Sciences&rft.atitle=In+vitro+systems+as+simulations+of+in+vivo+conditions%3A+the+study+of+cognition+and+synaptic+plasticity+in+neurotoxicology.&rft.au=Gilbert%2C+M+E&rft.aulast=Gilbert&rft.aufirst=M&rft.date=2000-01-01&rft.volume=919&rft.issue=&rft.spage=119&rft.isbn=&rft.btitle=&rft.title=Annals+of+the+New+York+Academy+of+Sciences&rft.issn=00778923&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-06 N1 - Date created - 2000-12-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Aging and resistance to Trichinella spiralis infection following xenobiotic exposure. AN - 72421534; 11083112 AB - Aging is accompanied by well-documented physiological changes, including alterations in the immune system that can lead to reduced resistance to a variety of infectious agents. We tested the hypothesis that immunosenescence exacerbates the immunosuppressive effect of xenobiotics. If proven true, a given dose of an immunosuppressive xenobiotic would cause greater suppression of host resistance in an aged population. JF - Annals of the New York Academy of Sciences AU - Luebke, R W AU - Copeland, C B AU - Andrews, D L AD - Immunotoxicology Branch, Experimental Toxicology Division, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. luebke.robert@epamail.epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 221 EP - 229 VL - 919 SN - 0077-8923, 0077-8923 KW - Antigens, Helminth KW - 0 KW - Immunosuppressive Agents KW - Polychlorinated Dibenzodioxins KW - Xenobiotics KW - Index Medicus KW - Animals KW - Polychlorinated Dibenzodioxins -- pharmacology KW - Disease Susceptibility -- immunology KW - Mice KW - Rats KW - Lymphocyte Activation -- drug effects KW - Lymphocyte Count KW - Mice, Inbred Strains KW - Lymphocytes -- immunology KW - Larva -- immunology KW - Lymphocytes -- drug effects KW - Antigens, Helminth -- immunology KW - Female KW - Trichinellosis -- parasitology KW - Aging -- drug effects KW - Xenobiotics -- pharmacology KW - Trichinellosis -- immunology KW - Trichinella spiralis -- physiology KW - Aging -- immunology KW - Trichinella spiralis -- immunology KW - Immunosuppressive Agents -- pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72421534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+the+New+York+Academy+of+Sciences&rft.atitle=Aging+and+resistance+to+Trichinella+spiralis+infection+following+xenobiotic+exposure.&rft.au=Luebke%2C+R+W%3BCopeland%2C+C+B%3BAndrews%2C+D+L&rft.aulast=Luebke&rft.aufirst=R&rft.date=2000-01-01&rft.volume=919&rft.issue=&rft.spage=221&rft.isbn=&rft.btitle=&rft.title=Annals+of+the+New+York+Academy+of+Sciences&rft.issn=00778923&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-06 N1 - Date created - 2000-12-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Erythrocyte and spermatid micronucleus analyses in mice chronically exposed to potassium bromate in drinking water. AN - 72358635; 11044907 JF - Environmental and molecular mutagenesis AU - Allen, J W AU - Collins, B W AU - Lori, A AU - Afshari, A J AU - George, M H AU - DeAngelo, A B AU - Fuscoe, J C AD - Environmental Carcinogenesis Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. allen.james@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 250 EP - 253 VL - 36 IS - 3 SN - 0893-6692, 0893-6692 KW - Bromates KW - 0 KW - Carcinogens KW - Mutagens KW - potassium bromate KW - 04MB35W6ZA KW - Index Medicus KW - Mice, Inbred Strains KW - Animals KW - Micronucleus Tests KW - Dose-Response Relationship, Drug KW - Water Supply KW - Carcinogens -- toxicity KW - Mice KW - Male KW - Spermatids -- drug effects KW - Erythrocytes -- drug effects KW - Bromates -- toxicity KW - Mutagens -- toxicity KW - Bromates -- administration & dosage UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72358635?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+and+molecular+mutagenesis&rft.atitle=Erythrocyte+and+spermatid+micronucleus+analyses+in+mice+chronically+exposed+to+potassium+bromate+in+drinking+water.&rft.au=Allen%2C+J+W%3BCollins%2C+B+W%3BLori%2C+A%3BAfshari%2C+A+J%3BGeorge%2C+M+H%3BDeAngelo%2C+A+B%3BFuscoe%2C+J+C&rft.aulast=Allen&rft.aufirst=J&rft.date=2000-01-01&rft.volume=36&rft.issue=3&rft.spage=250&rft.isbn=&rft.btitle=&rft.title=Environmental+and+molecular+mutagenesis&rft.issn=08936692&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-22 N1 - Date created - 2000-12-05 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Biologically based risk assessment models for developmental toxicity. AN - 71159247; 10840717 AB - It is obvious that the task of incorporating mechanistic information into dose-response assessment for developmental toxicity is, by and large, still at its conceptual stage. Our immature understanding of embryogenesis and teratogenesis forces us to make simplifying biological assumptions that may turn out to be erroneous; therefore, these mechanistically based models should be constructed so as to be easily modified as new information becomes available. The data-intensive (and costly) nature of these modeling efforts may also limit their practice to extraordinary situations where, for instance, large segments of the human population are exposed to low levels of a compound and the determination of a safe level of exposure is of utmost importance, or where compounds are of such immense economic or therapeutic value that their use would warrant a concerted effort to minimize the uncertainties inherent in the current methods of extrapolation. Nevertheless, this chapter has presented several attempts to translate the concept of BBDR into practice. When these applications become successful, these models should provide risk assessors with more reliable response indicators at low doses (where human exposures are realistic) and more accurate cross-strain/cross-species comparisons as well as extrapolations across exposure conditions. Although the BBDR models do not necessarily redefine the current practice of risk assessment using either the NOAEL or the benchmark approach, information derived from these efforts should provide a credible scientific basis for the estimates of RfD. JF - Methods in molecular biology (Clifton, N.J.) AU - Lau, C AU - Setzer, R W AD - Reproductive Toxicology Division, NHEERL, US Environmental Protection Agency, Research Triangle Park, NC, USA. Y1 - 2000 PY - 2000 DA - 2000 SP - 271 EP - 281 VL - 136 SN - 1064-3745, 1064-3745 KW - Index Medicus KW - Animals KW - Humans KW - Drug-Related Side Effects and Adverse Reactions KW - Risk Assessment -- methods KW - Models, Biological UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71159247?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Methods+in+molecular+biology+%28Clifton%2C+N.J.%29&rft.atitle=Biologically+based+risk+assessment+models+for+developmental+toxicity.&rft.au=Lau%2C+C%3BSetzer%2C+R+W&rft.aulast=Lau&rft.aufirst=C&rft.date=2000-01-01&rft.volume=136&rft.issue=&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Methods+in+molecular+biology+%28Clifton%2C+N.J.%29&rft.issn=10643745&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-10-25 N1 - Date created - 2000-10-25 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Embryo/fetal topographical analysis by fluorescence microscopy and confocal laser scanning microscopy. AN - 71085288; 10791317 JF - Methods in molecular biology (Clifton, N.J.) AU - Zucker, R M AU - Rogers, J M AD - Reproductive Toxicology Division, US Environmental Protection Agency, Research Triangle Park, NC, USA. Y1 - 2000 PY - 2000 DA - 2000 SP - 203 EP - 209 VL - 135 SN - 1064-3745, 1064-3745 KW - Fluorescent Dyes KW - 0 KW - Acridine Orange KW - F30N4O6XVV KW - Index Medicus KW - Animals KW - Mice, Inbred C57BL KW - Mice KW - Image Processing, Computer-Assisted KW - Female KW - Pregnancy KW - Microscopy, Electron, Scanning KW - Developmental Biology -- methods KW - Embryo, Mammalian -- anatomy & histology KW - Microscopy, Fluorescence -- methods KW - Microscopy, Confocal -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71085288?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Methods+in+molecular+biology+%28Clifton%2C+N.J.%29&rft.atitle=Embryo%2Ffetal+topographical+analysis+by+fluorescence+microscopy+and+confocal+laser+scanning+microscopy.&rft.au=Zucker%2C+R+M%3BRogers%2C+J+M&rft.aulast=Zucker&rft.aufirst=R&rft.date=2000-01-01&rft.volume=135&rft.issue=&rft.spage=203&rft.isbn=&rft.btitle=&rft.title=Methods+in+molecular+biology+%28Clifton%2C+N.J.%29&rft.issn=10643745&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-19 N1 - Date created - 2000-06-19 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - CONF T1 - Mouse lymphoma thymidine kinase locus gene mutation assay: International Workshop on Genotoxicity Test Procedures Workgroup Report. AN - 71003714; 10737953 AB - The Mouse Lymphoma Assay (MLA) Workgroup addressed and reached consensus on a number of issues. Discussion focused on five areas: (1) acceptable assay versions; (2) cytotoxicity measure; (3) 24-hr treatment; (4) microwell colony counting and sizing; and (5) data acceptability/statistical analysis. Although the International Conference on Harmonisation (ICH) indicated a preference for the microwell over the soft agar method, all of the workgroup members agreed that both versions of the MLA are equally acceptable. The workgroup agreed that it is desirable for both assay versions to use the same measure of cytotoxicity to define the acceptable and required concentration range. Currently, laboratories using the microwell version use the relative survival (RS) determined by cloning immediately after the treatment. Laboratories using the soft agar method do not obtain an RS but use the relative total growth (RTG), a combination of the relative suspension growth (RSG) during the expression period and the relative cloning efficiency determined at the time of mutant selection. The workgroup agreed to investigate the RSG, the RS, and the RTG and to develop further guidance. In the interim, the workgroup reached consensus that the RTG be used as the standard measure of cytotoxicity. The ICH recommended a 24-hr treatment in the absence of S9 when negative results are obtained with short (3-4 hr) treatments. The workgroup agreed to retain this requirement but acknowledged that more data are needed prior to making final recommendations concerning the need for and the specific protocol for the 24-hr treatment. Environ. Mol. Mutagen. 35:185-190, 2000 Published 2000 Wiley-Liss, Inc. JF - Environmental and molecular mutagenesis AU - Moore, M M AU - Honma, M AU - Clements, J AU - Awogi, T AU - Bolcsfoldi, G AU - Cole, J AU - Gollapudi, B AU - Harrington-Brock, K AU - Mitchell, A AU - Muster, W AU - Myhr, B AU - O'Donovan, M AU - Ouldelhkim, M C AU - San, R AU - Shimada, H AU - Stankowski, L F Y1 - 2000 PY - 2000 DA - 2000 SP - 185 EP - 190 VL - 35 IS - 3 KW - Thymidine Kinase KW - EC 2.7.1.21 KW - Index Medicus KW - Animals KW - Mutagenicity Tests KW - Tumor Cells, Cultured KW - Mice KW - Guidelines as Topic KW - Lymphoma -- enzymology KW - Lymphoma -- genetics KW - Thymidine Kinase -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71003714?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Environmental+and+molecular+mutagenesis&rft.atitle=Mouse+lymphoma+thymidine+kinase+locus+gene+mutation+assay%3A+International+Workshop+on+Genotoxicity+Test+Procedures+Workgroup+Report.&rft.au=Moore%2C+M+M%3BHonma%2C+M%3BClements%2C+J%3BAwogi%2C+T%3BBolcsfoldi%2C+G%3BCole%2C+J%3BGollapudi%2C+B%3BHarrington-Brock%2C+K%3BMitchell%2C+A%3BMuster%2C+W%3BMyhr%2C+B%3BO%27Donovan%2C+M%3BOuldelhkim%2C+M+C%3BSan%2C+R%3BShimada%2C+H%3BStankowski%2C+L+F&rft.aulast=Moore&rft.aufirst=M&rft.date=2000-01-01&rft.volume=35&rft.issue=3&rft.spage=185&rft.isbn=&rft.btitle=&rft.title=Environmental+and+molecular+mutagenesis&rft.issn=08936692&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-04-27 N1 - Date created - 2000-04-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Conceptual basis for multi-route intake dose modeling using an energy expenditure approach. AN - 70941946; 10703850 AB - This paper provides the conceptual basis for a modeling logic that is currently being developed in the National Exposure Research Laboratory (NERL) of the U.S. Environmental Protection Agency (EPA) for use in intake dose assessments involving substances that can enter the body via multiple routes of exposure. NERL is simultaneously developing a consolidated human activity database that will provide much of the data needed to parameterize equations used to implement the logic. EPA's Office of Air Quality Planning and Standards (OAQPS) is, in part, using the logic in its on-going review of the carbon monoxide national ambient air quality standard. JF - Journal of exposure analysis and environmental epidemiology AU - McCurdy, T AD - National Exposure Research Laboratory, US Environmental Protection Agency, Research Triangle Park, North Carolina, USA. PY - 2000 SP - 86 EP - 97 VL - 10 IS - 1 SN - 1053-4245, 1053-4245 KW - Index Medicus KW - Reference Values KW - Humans KW - Databases, Factual KW - Environmental Exposure -- analysis KW - Energy Metabolism KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70941946?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.atitle=Conceptual+basis+for+multi-route+intake+dose+modeling+using+an+energy+expenditure+approach.&rft.au=McCurdy%2C+T&rft.aulast=McCurdy&rft.aufirst=T&rft.date=2000-01-01&rft.volume=10&rft.issue=1&rft.spage=86&rft.isbn=&rft.btitle=&rft.title=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.issn=10534245&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-23 N1 - Date created - 2000-03-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - In vitro cytotoxicity of aromatic aerobic biotransformation products in bluegill sunfish BF-2 cells. AN - 70926859; 10677264 AB - Toluene (methylbenzene) is a common environmental pollutant that is found in many hazardous waste sites and it is an aquifer contaminant. A concern is the potential risk to human and ecosystem health due to exposure to toluene and its major biotransformation products. The cytotoxicity of eight aromatic products of toluene aerobic biotransformation was investigated in bluegill sunfish BF-2 cells. The cytotoxicity was determined using several in vitro assay endpoints. BF-2 cells were propagated at 32 degrees C in an atmosphere of 5% CO2-95% air. The concentrations of these products causing 50% inhibition in cell replication, protein content, uptake of natural red, and colony formation were evaluated and compared. The results of the study indicate a direct relationship between the exposure concentration of these products and observed cytotoxic effects. In descending order of cytotoxicity, the compounds were 3-methylcatechol, 4-methylcatechol, catechol, o-cresol, p-cresol, m-cresol, benzaldehyde, and methyl benzoate. JF - Ecotoxicology and environmental safety AU - Shen, Y AU - West, C AU - Hutchins, S R AD - National Risk Management Research Laboratory, Subsurface Protection and Remediation Division, US Environmental Protection Agency, Ada, Oklahoma 74820, USA. Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 27 EP - 32 VL - 45 IS - 1 SN - 0147-6513, 0147-6513 KW - Toluene KW - 3FPU23BG52 KW - Index Medicus KW - Fibroblasts -- drug effects KW - Animals KW - Dose-Response Relationship, Drug KW - Biotransformation KW - Cell Division -- drug effects KW - Perciformes KW - Aerobiosis KW - Cell Line KW - Toluene -- metabolism KW - Toluene -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70926859?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecotoxicology+and+environmental+safety&rft.atitle=In+vitro+cytotoxicity+of+aromatic+aerobic+biotransformation+products+in+bluegill+sunfish+BF-2+cells.&rft.au=Shen%2C+Y%3BWest%2C+C%3BHutchins%2C+S+R&rft.aulast=Shen&rft.aufirst=Y&rft.date=2000-01-01&rft.volume=45&rft.issue=1&rft.spage=27&rft.isbn=&rft.btitle=&rft.title=Ecotoxicology+and+environmental+safety&rft.issn=01476513&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-02 N1 - Date created - 2000-03-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The concentration and distribution of 2,3,7,8-dibenzo-p-dioxins/-furans in chickens. AN - 70898892; 10665435 AB - The concentrations of the 2,3,7,8-Cl substituted dibenzo-p-dioxins/-furans (PCDDs/PCDFs) were determined in the edible tissues of whole chicken fryers and compared with the values found in their abdominal fat. The values are presented both on a whole weight basis and on a lipid adjusted basis for each tissue. While there is a marked difference in the concentration of the 2,3,7,8-dibenzo-p-dioxins in the edible tissues expressed on a whole weight basis, the lipid-adjusted concentrations of the individual dioxins were not statistically different in the various tissues. This validates the use of lipid adjusted concentrations of 2,3,7,8-PCDDs/PCDFs in abdominal fat for the determination of the presence of these compounds in different tissues. JF - Chemosphere AU - Ferrario, J AU - Byrne, C AD - US Environmental Protection Agency, John C. Stennis Space Center, Mississippi 39529, USA. ferrario.joseph@epa.gov Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 221 EP - 224 VL - 40 IS - 2 SN - 0045-6535, 0045-6535 KW - Benzofurans KW - 0 KW - Dibenzofurans, Polychlorinated KW - Polychlorinated Dibenzodioxins KW - Index Medicus KW - Skin -- chemistry KW - Animals KW - Tissue Distribution KW - Muscle, Skeletal -- chemistry KW - Liver -- chemistry KW - Adipose Tissue -- chemistry KW - Gizzard, Avian -- chemistry KW - Polychlorinated Dibenzodioxins -- analogs & derivatives KW - Polychlorinated Dibenzodioxins -- analysis KW - Food Contamination KW - Benzofurans -- analysis KW - Chickens -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70898892?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere&rft.atitle=The+concentration+and+distribution+of+2%2C3%2C7%2C8-dibenzo-p-dioxins%2F-furans+in+chickens.&rft.au=Ferrario%2C+J%3BByrne%2C+C&rft.aulast=Ferrario&rft.aufirst=J&rft.date=2000-01-01&rft.volume=40&rft.issue=2&rft.spage=221&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=00456535&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-02-24 N1 - Date created - 2000-02-24 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Real-time monitoring of particles, PAH, and CO in an occupied townhouse. AN - 70885282; 10660987 AB - Beginning in October 1996, indoor and sometimes outdoor air at an occupied house in a suburban area of Virginia has been monitored continuously for particles, PAH, and CO. Two Climet monitors have been used to count particles in six size ranges between 0.3 and > 10 microns, with 1-minute averages being collected every 5 minutes. Two Ecochem PAH monitors have been used to sample for particle-bound PAHs once every minute. Also, two Langan CO monitor-data loggers have measured CO once each minute while logging the PAH data. Two Aethalometers measure black carbon. A single Scanning Mobility Particle Sizer (SMPS) measures ultrafine particles. The pairs of monitors are set up either to provide an indoor/outdoor or an upstairs office/downstairs kitchen comparison. Air exchange is occasionally measured using a Bruel & Kjaer 1302 SF6 monitor, as a parameter necessary for estimating deposition rates for particles and PAH. Results from the first 16 months of monitoring (approximately 10 M observations) include: neighborhood woodburning and morning rush hour traffic are the most important sources of PAH and black carbon outdoors; candles, matches, incense, and frying, sauteeing, broiling, deep-frying, and stir-frying are additional important indoor sources of PM. One citronella candle was an extremely powerful PAH source. Neither woodburning nor vehicles appears to be an important source of particles indoors, but frying, grilling, and sauteeing are extremely strong indoor sources, together with combustion events such as use of matches and candles. Physical movement was an important source of coarse but not fine particles. Use of the gas stove for extended periods of time led to increased CO concentrations--vehicles and woodburning were relatively minor sources in comparison. The gas oven, gas burners, and electric toaster oven were important sources of ultrafine particles (< 0.1 micron). A source-proximity effect was noted with the kitchen monitor reading two to five times higher than the upstairs monitor for particles from kitchen events, while the upstairs monitor often read higher than the kitchen monitor for events caused by physical activity alone. JF - Applied occupational and environmental hygiene AU - Wallace, L AD - National Exposure Research Laboratory, Environmental Protection Agency, Reston, Virginia, USA. Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 39 EP - 47 VL - 15 IS - 1 SN - 1047-322X, 1047-322X KW - Aerosols KW - 0 KW - Hydrocarbons, Aromatic KW - Carbon Monoxide KW - 7U1EE4V452 KW - Index Medicus KW - Aerosols -- analysis KW - Housing KW - Particle Size KW - Inhalation Exposure KW - Humans KW - Activities of Daily Living KW - Motor Vehicles KW - Hydrocarbons, Aromatic -- analysis KW - Air Pollution, Indoor -- analysis KW - Carbon Monoxide -- analysis KW - Cooking KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70885282?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+occupational+and+environmental+hygiene&rft.atitle=Real-time+monitoring+of+particles%2C+PAH%2C+and+CO+in+an+occupied+townhouse.&rft.au=Wallace%2C+L&rft.aulast=Wallace&rft.aufirst=L&rft.date=2000-01-01&rft.volume=15&rft.issue=1&rft.spage=39&rft.isbn=&rft.btitle=&rft.title=Applied+occupational+and+environmental+hygiene&rft.issn=1047322X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-08 N1 - Date created - 2000-03-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Assessing the role of ortho-substitution on polychlorinated biphenyl binding to transthyretin, a thyroxine transport protein. AN - 70855182; 10631123 AB - ortho-Substituted polychlorinated biphenyls (PCBs) make up a large part of the PCB residue found in the environment and human tissues. Our laboratory as well as others have demonstrated that ortho-substituted congeners exhibit important biological activities by aryl hydrocarbon (Ah) receptor-independent mechanisms, including changes in second messenger systems necessary for normal cell function and growth. Previous structure-activity relationship (SAR) studies on second messengers and transthyretin (TTR; prealbumin) binding focused little attention on the ortho-substituted PCBs. Disruption of thyroid hormone (TH) transport is one potentially important mechanism by which PCBs can alter TH homeostasis. A more systematic study of PCB binding to TTR, a major TH transport protein, was undertaken, in which the role of ortho-substitution was more thoroughly investigated. Results from this study indicated that the ortho-only substituted series showed significant binding activity and the relative affinities were 2,2',6 > 2,2' = 2,6 >> 2 = 2,2',6, 6'. As anticipated on the basis of steric considerations, bromine was shown to be more active as an ortho-substituent where the relative affinity of 2,2'-Br was equivalent to 2,2',6-Cl. The congener patterns (di-meta-substitution in one or both rings) most closely resembling the diiodophenolic ring of thyroxine (T(4)) showed the highest binding activity. Multiple ortho-substituents were shown to decrease binding activity in such patterns. Congener patterns (single meta-substitution in one or both rings) more closely resembling the monoiodophenolic ring of T(3) showed significantly lower binding activity, consistent with the relatively low binding activity of T(3) and smaller size of chlorine compared to iodine. The addition of ortho-substitution to such patterns gave variable results depending on the substituent relationship (adjacency or nonadjacency) to the pattern. Some patterns such as 2, 2',4,4',5,5' showed good binding activity and represent common congeners in the commercial Aroclor mixtures and in the environment. The binding potencies of ortho-PCBs to TTR may represent a signature SAR that predicts specific biologic/toxic effects. In this regard, the binding potencies were consistent with measured biological activities of these PCBs, including effects on cell dopamine content, Ca(2+) homeostasis, and protein kinase C translocation in neuronal cells and brain homogenate preparations. Copyright 2000 Academic Press. JF - Toxicology and applied pharmacology AU - Chauhan, K R AU - Kodavanti, P R AU - McKinney, J D AD - Curriculum in Toxicology, University of North Carolina, Chapel Hill, North Carolina, USA. chauhan.kamal@epamail.epa.gov Y1 - 2000/01/01/ PY - 2000 DA - 2000 Jan 01 SP - 10 EP - 21 VL - 162 IS - 1 SN - 0041-008X, 0041-008X KW - Aroclors KW - 0 KW - Prealbumin KW - Thyroxine-Binding Proteins KW - Chlorine KW - 4R7X1O2820 KW - Iodine KW - 9679TC07X4 KW - Polychlorinated Biphenyls KW - DFC2HB4I0K KW - Protein Kinase C KW - EC 2.7.11.13 KW - Thyroxine KW - Q51BO43MG4 KW - Bromine KW - SBV4XY874G KW - Calcium KW - SY7Q814VUP KW - Dopamine KW - VTD58H1Z2X KW - Index Medicus KW - Protein Kinase C -- metabolism KW - Iodine -- chemistry KW - Calcium -- chemistry KW - Dose-Response Relationship, Drug KW - Aroclors -- chemistry KW - Bromine -- chemistry KW - Binding, Competitive KW - Dopamine -- metabolism KW - Chlorine -- chemistry KW - Structure-Activity Relationship KW - Thyroxine-Binding Proteins -- metabolism KW - Thyroxine -- metabolism KW - Polychlorinated Biphenyls -- chemistry KW - Polychlorinated Biphenyls -- metabolism KW - Prealbumin -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70855182?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+and+applied+pharmacology&rft.atitle=Assessing+the+role+of+ortho-substitution+on+polychlorinated+biphenyl+binding+to+transthyretin%2C+a+thyroxine+transport+protein.&rft.au=Chauhan%2C+K+R%3BKodavanti%2C+P+R%3BMcKinney%2C+J+D&rft.aulast=Chauhan&rft.aufirst=K&rft.date=2000-01-01&rft.volume=162&rft.issue=1&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+applied+pharmacology&rft.issn=0041008X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-02-17 N1 - Date created - 2000-02-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Importance of cloud motion on cigarette smoke deposition in lung airways. AN - 70546120; 12881896 AB - Deposition patterns of mainstream cigarette smoke were studied in casts of human extrathoracic and lung airways. The laboratory tests were designed to simulate smoking (i.e., the behavior of undiluted cigarette smoke in smokers' lungs), not secondary exposures to non-smokers. The experimental data revealed concentrated deposits at well-defined sites, particularly at bifurcations (most notably at inclusive carinal ridges) and certain segments of tubular airways. The measurements suggest the occurrence of cloud motion wherein particles are not deposited by their individual characteristics but behave as an entity. The observed behavior is consistent with the theory of Martonen (1992), where it was predicted that cigarette smoke could behave aerodynamically as a large cloud (e.g., 20 microns diameter) rather than as submicrometer constituent particles. The effects of cloud motion on deposition are pronounced. For example, an aerosol with a mass median aerodynamic diameter (MMAD) of 0.443 micron and geometric standard deviation (GSD) of 1.44 (i.e., published cigarette smoke values) will have the following deposition fractions: lung (TB + P) = 0.14, tracheobronchial (TB) = 0.03, and pulmonary (P) = 0.11. When cloud motion is simulated, total deposition increases to 0.99 and is concentrated in the TB compartment, especially the upper bronchi; pulmonary deposition is negligible. Cloud motion produces heterogeneous deposition resulting in increased exposures of underlying airway cells to toxic and carcinogenic substances. The deposition sites correlated with incidence of cancers in vivo. At present, cloud motion concentration effects per se are not addressed in federal regulatory standards. The experimental and theoretical data suggest that concentrations of particulate matter may be an important factor to be integrated into U.S. Environmental Protection Agency (EPA) risk assessment protocols. JF - Inhalation toxicology AU - Martonen, T B AU - Musante, C J AD - Experimental Toxicology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA. martonen.ted@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 261 EP - 280 VL - 12 Suppl 4 SN - 0895-8378, 0895-8378 KW - Smoke KW - 0 KW - Index Medicus KW - Particle Size KW - Humans KW - Tobacco KW - Administration, Inhalation KW - Models, Anatomic KW - Smoking -- physiopathology KW - Bronchi -- anatomy & histology KW - Motion KW - Smoke -- analysis KW - Bronchi -- physiology KW - Air Movements UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70546120?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Inhalation+toxicology&rft.atitle=Importance+of+cloud+motion+on+cigarette+smoke+deposition+in+lung+airways.&rft.au=Martonen%2C+T+B%3BMusante%2C+C+J&rft.aulast=Martonen&rft.aufirst=T&rft.date=2000-01-01&rft.volume=12+Suppl+4&rft.issue=&rft.spage=261&rft.isbn=&rft.btitle=&rft.title=Inhalation+toxicology&rft.issn=08958378&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-08-22 N1 - Date created - 2003-07-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Biological plausibility for carbon monoxide as a copollutant in PM epidemiologic studies. AN - 70545794; 12881888 AB - Several recent epidemiologic studies investigating the short-term effects of particulate matter (PM) concentrations have shown carbon monoxide (CO) to have the strongest and most consistent statistical relationship with hospital admissions for cardiac diseases. This article suggests a potential hypothesis for these epidemiologic observations. Oxygen (O2) is transported, in reversible combination with hemoglobin, from the lungs to the tissues, where it diffuses into cardiac myocytes. Within the myocyte a portion of the O2 diffuses directly to the mitochondria, while the remaining O2 is transported by facilitated diffusion bound to myoglobin, a heme protein found in muscle. Within the mitochondria, O2 reacts to produce adenosine triphosphate (ATP), a high-energy phosphate compound that provides energy for all cell functions. Accordingly, the sustained production of ATP depends on the continuous delivery of O2 to the mitochondria, and failure at any point in the O2 transport system will compromise ATP production and myocardial function. Myoglobin, a fundamental constituent of cardiac muscle is essential for delivering O2 to the mitochondria. Myoglobin concentrations in cardiac tissue were 50% lower in patients with heart failure than in patients dying from noncardiac causes. Myoglobin concentrations are also severely depressed in animal models of congestive heart failure. Consequently, the role of myoglobin as a cellular transporter of O2 is seriously impaired by heart disease. Carbon monoxide reduces O2 transport to the tissues and, within the tissues, binds with myoglobin to form carboxymyoglobin (COMb). Thus, in cardiac patients CO further exacerbates the disease-related loss of myoglobin function. This further disrupts O2 transport and promotes adverse consequences for the compromised heart. Moreover, during hypoxia CO has the propensity of leaving the blood and binding with myoglobin in the intracellular compartment. Elderly persons with preexisting cardiopulmonary disorders appear to be at maximum risk of harmful health effects due to ambient air pollution exposure. Many of these disorders result in generalized or regional hypoxia. It is reasonable to hypothesize that CO also moves out of the blood of these patients and into the heart tissue whenever they are under hypoxic stress, such as exercise. Accordingly, CO binds with the marginal myoglobin concentrations present in the hearts of cardiac patients and further compromises cardiac function, resulting in poor tolerance of activity. Therefore, reduced cardiac myoglobin in people with heart disease, further exacerbated by CO moving into the cardiac tissue during episodes of hypoxia, may account for the positive association between ambient CO concentrations and hospitalization for heart disease. JF - Inhalation toxicology AU - McGrath, J J AD - Department of Physiology, Texas Tech University, Lubbock, Texas, USA. mcgrath.jim@epamail.epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 91 EP - 107 VL - 12 Suppl 4 SN - 0895-8378, 0895-8378 KW - Air Pollutants KW - 0 KW - Myoglobin KW - Carbon Monoxide KW - 7U1EE4V452 KW - Oxygen KW - S88TT14065 KW - Index Medicus KW - Particle Size KW - Oxygen -- metabolism KW - Humans KW - Myoglobin -- metabolism KW - Myocardium -- metabolism KW - Cardiovascular Diseases -- etiology KW - Cardiovascular Diseases -- epidemiology KW - Carbon Monoxide -- adverse effects KW - Air Pollutants -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70545794?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Inhalation+toxicology&rft.atitle=Biological+plausibility+for+carbon+monoxide+as+a+copollutant+in+PM+epidemiologic+studies.&rft.au=McGrath%2C+J+J&rft.aulast=McGrath&rft.aufirst=J&rft.date=2000-01-01&rft.volume=12+Suppl+4&rft.issue=&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=Inhalation+toxicology&rft.issn=08958378&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-08-22 N1 - Date created - 2003-07-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - PM2000: particulate matter and health. Introduction. AN - 70541275; 12881883 JF - Inhalation toxicology AU - Grant, L D AD - National Center for Environmental Assessment-RTP Division, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA. Y1 - 2000 PY - 2000 DA - 2000 SP - v EP - vii VL - 12 Suppl 4 SN - 0895-8378, 0895-8378 KW - Air Pollutants KW - 0 KW - Index Medicus KW - United States Environmental Protection Agency -- legislation & jurisprudence KW - United States KW - Humans KW - Air Pollution -- legislation & jurisprudence KW - Air Pollutants -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70541275?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Inhalation+toxicology&rft.atitle=PM2000%3A+particulate+matter+and+health.+Introduction.&rft.au=Grant%2C+L+D&rft.aulast=Grant&rft.aufirst=L&rft.date=2000-01-01&rft.volume=12+Suppl+4&rft.issue=&rft.spage=v&rft.isbn=&rft.btitle=&rft.title=Inhalation+toxicology&rft.issn=08958378&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-08-22 N1 - Date created - 2003-07-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Cytotoxicity of liquid disinfectants. AN - 70534012; 12594904 AB - This study was prompted by toxic responses to disinfecting agents reported in patients after surgical procedures and in sensitized health care personnel. We evaluated the cytotoxicity of seven substances used in the formulation of common liquid chemical disinfectants and sterilants. We found that a standard method based on direct microscopic examination of cell cultures was insensitive and may result in an underestimation of the risk that disinfectants pose to health care personnel or patients who are exposed to these substances. Using independent quantitative tests measuring the integrity of the cellular membrane, metabolic activity, or cell growth, we found that there is a several-hundredfold difference in the relative toxicity of various disinfecting substances. The concentration toxic in 50% of the cell population (TC(50)) that was found for each disinfectant was similar in a variety of cell lines from human, monkey, or mouse origin. Statistical analysis of TC(50)s suggests that liquid disinfecting agents could be classified in three main groups according to their relative toxicity, with: (1) mild (TC(50) > 1 mM, including phenol, hydrogen peroxide, and formaldehyde); (2) moderate (1mM > TC(50) > 0.1 mM, sodium hypochlorite); and (3) severe (TC(50) < 0.1 mM, glutaraldehyde, cupric ascorbate, and peracetic acid) toxicity. These data suggest a vast difference in the potential risk of various disinfectants and sterilants. The data presented in this study should help to define the relative toxic risk of different disinfecting substances to patients and health care personnel and assist in the selection of safer microbicidal formulations. JF - Surgical infections AU - Sagripanti, J L AU - Bonifacino, A AD - Molecular Biology Branch, (HFZ-113), Division of Life Sciences, Office of Science and Technology, Center for Devices and Radiological Health, Food and Drug Administration, Rockville, MD 20852, USA. Y1 - 2000 PY - 2000 DA - 2000 SP - 3 EP - 14 VL - 1 IS - 1 SN - 1096-2964, 1096-2964 KW - Disinfectants KW - 0 KW - Solutions KW - Formaldehyde KW - 1HG84L3525 KW - Phenol KW - 339NCG44TV KW - Copper KW - 789U1901C5 KW - Hydrogen Peroxide KW - BBX060AN9V KW - Sodium Hypochlorite KW - DY38VHM5OD KW - Peracetic Acid KW - I6KPI2E1HD KW - cupric chloride KW - S2QG84156O KW - Glutaral KW - T3C89M417N KW - Index Medicus KW - Animals KW - Cell Line -- drug effects KW - Humans KW - Peracetic Acid -- toxicity KW - Mice KW - Hydrogen Peroxide -- toxicity KW - Phenol -- toxicity KW - Sodium Hypochlorite -- toxicity KW - Cercopithecus aethiops KW - Glutaral -- toxicity KW - Copper -- toxicity KW - Formaldehyde -- toxicity KW - Cell Physiological Phenomena -- drug effects KW - Toxicity Tests -- methods KW - Disinfectants -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70534012?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Surgical+infections&rft.atitle=Cytotoxicity+of+liquid+disinfectants.&rft.au=Sagripanti%2C+J+L%3BBonifacino%2C+A&rft.aulast=Sagripanti&rft.aufirst=J&rft.date=2000-01-01&rft.volume=1&rft.issue=1&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Surgical+infections&rft.issn=10962964&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-04-24 N1 - Date created - 2003-02-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Models for leaching of pesticides in soils and groundwater AN - 52388971; 2000-018822 AB - Models are developed which describe leaching of pesticides in the root zone and the intermediate vadose zone, and flushing of residual solute mass in the aquifer. Pollutants' loss pathways in the soil, such as volatilization, crop uptake, and biochemical decay, are emphasized, and the effect of local dispersion and nonequilibrium transport in mobile-immobile phases is analyzed. It is shown that the effect of diffusive transfer on the leached mass fractions is dependent on the volume fraction of the immobile phase, adsorption, the apparent mass-transfer rate coefficient, the first-order decay rate in the immobile zone. Error analysis indicates that complete-mixing models can be used to simulate leaching fractions of the pollutant when the Peclet number, P (sub r) , is greater than one. However, ignoring the effect of dispersion may underestimate leaching significantly when P (sub r) <1, such as for volatile compounds. Potential application of the models to the design of groundwater protection zones is investigated, analysis and application results demonstrate the dependence of the size of protective buffer on potential loss pathways in the soil environment, the size of the source area, and aquifer geometric, hydraulic and biochemical properties. Potential use of the models for the management of pesticides is also investigated with implication on hazardous waste land treatment. JF - Journal of Hydrology AU - Hantush, M M AU - Marino, M A AU - Islam, M R Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 66 EP - 83 PB - Elsevier, Amsterdam VL - 227 IS - 1-4 SN - 0022-1694, 0022-1694 KW - solute transport KW - soils KW - hydrology KW - aquifer vulnerability KW - water quality KW - two-phase models KW - pollutants KW - unsaturated zone KW - pollution KW - mathematical models KW - evapotranspiration KW - ground water KW - aquifers KW - models KW - volatiles KW - theoretical studies KW - organic compounds KW - volatile organic compounds KW - leachate KW - hydraulic conductivity KW - waste disposal KW - pesticides KW - leaching KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52388971?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=Models+for+leaching+of+pesticides+in+soils+and+groundwater&rft.au=Hantush%2C+M+M%3BMarino%2C+M+A%3BIslam%2C+M+R&rft.aulast=Hantush&rft.aufirst=M&rft.date=2000-01-01&rft.volume=227&rft.issue=1-4&rft.spage=66&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; evapotranspiration; ground water; hydraulic conductivity; hydrology; leachate; leaching; mathematical models; models; organic compounds; pesticides; pollutants; pollution; soils; solute transport; theoretical studies; two-phase models; unsaturated zone; volatile organic compounds; volatiles; waste disposal; water quality ER - TY - JOUR T1 - Development of a geomorphic risk assessment and using GIS applications in the Middle Fork Payette River subbasin, Idaho AN - 52348404; 2000-043664 JF - Water Resources Center Report - Centers for Water and Wildland Resources AU - Fitzgerald, Jim AU - Hardy, Terry AU - Geier, Ted A2 - Slaughter, Charles W. Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 129 PB - University of California, Water Resources Center, Centers for Water and Wildland Resources, Riverside, CA KW - United States KW - hydrology KW - Idaho KW - Global Positioning System KW - degradation KW - stream transport KW - sediment transport KW - erosion KW - sedimentation KW - Middle Fork Payette River basin KW - watersheds KW - pollution KW - ecosystems KW - risk assessment KW - applications KW - Payette River KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52348404?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Center+Report+-+Centers+for+Water+and+Wildland+Resources&rft.atitle=Development+of+a+geomorphic+risk+assessment+and+using+GIS+applications+in+the+Middle+Fork+Payette+River+subbasin%2C+Idaho&rft.au=Fitzgerald%2C+Jim%3BHardy%2C+Terry%3BGeier%2C+Ted&rft.aulast=Fitzgerald&rft.aufirst=Jim&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Center+Report+-+Centers+for+Water+and+Wildland+Resources&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventh biennial Watershed Management Council conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - CODEN - #05209 N1 - SubjectsTermNotLitGenreText - applications; degradation; ecosystems; erosion; Global Positioning System; hydrology; Idaho; land use; Middle Fork Payette River basin; Payette River; pollution; risk assessment; sediment transport; sedimentation; stream transport; United States; watersheds ER - TY - JOUR T1 - Misfit between sediment toxicity and chemistry AN - 52318211; 2000-062655 JF - Marine Pollution Bulletin AU - O'Connor, Thomas P AU - Paul, John F Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 59 EP - 64 PB - Pergamon, Oxford-New York VL - 40 IS - 1 SN - 0025-326X, 0025-326X KW - United States KW - hydrology KW - hazardous waste KW - concentration KW - toxic materials KW - rivers and streams KW - data processing KW - prediction KW - pollution KW - detection KW - toxicity KW - sediments KW - data bases KW - chemical composition KW - geochemistry KW - pore water KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52318211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Pollution+Bulletin&rft.atitle=Misfit+between+sediment+toxicity+and+chemistry&rft.au=O%27Connor%2C+Thomas+P%3BPaul%2C+John+F&rft.aulast=O%27Connor&rft.aufirst=Thomas&rft.date=2000-01-01&rft.volume=40&rft.issue=1&rft.spage=59&rft.isbn=&rft.btitle=&rft.title=Marine+Pollution+Bulletin&rft.issn=0025326X&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/0025326X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 32 N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MPNBAZ N1 - SubjectsTermNotLitGenreText - chemical composition; concentration; data bases; data processing; detection; geochemistry; hazardous waste; hydrology; pollution; pore water; prediction; rivers and streams; sediments; toxic materials; toxicity; United States ER - TY - JOUR T1 - Examination of a relationship between (super 137) Cs concentrations in soils and plants from alpine pastures AN - 52270862; 2001-008584 JF - Journal of Environmental Radioactivity AU - Bunzl, K AU - Albers, B P AU - Schimmack, W AU - Belli, M AU - Ciuffo, L AU - Menegon, S Y1 - 2000 PY - 2000 DA - 2000 SP - 145 EP - 158 PB - Elsevier, Oxford VL - 48 IS - 2 SN - 0265-931X, 0265-931X KW - soils KW - concentration KW - Plantae KW - terrestrial environment KW - isotopes KW - pollutants KW - behavior KW - alkali metals KW - pollution KW - K-40 KW - environmental analysis KW - radioactive isotopes KW - Cs-137 KW - cesium KW - metals KW - potassium KW - grasslands KW - mass transfer KW - geochemistry KW - alpine environment KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52270862?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Radioactivity&rft.atitle=Examination+of+a+relationship+between+%28super+137%29+Cs+concentrations+in+soils+and+plants+from+alpine+pastures&rft.au=Bunzl%2C+K%3BAlbers%2C+B+P%3BSchimmack%2C+W%3BBelli%2C+M%3BCiuffo%2C+L%3BMenegon%2C+S&rft.aulast=Bunzl&rft.aufirst=K&rft.date=2000-01-01&rft.volume=48&rft.issue=2&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Radioactivity&rft.issn=0265931X&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/0265931X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 22 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkali metals; alpine environment; behavior; cesium; concentration; Cs-137; environmental analysis; geochemistry; grasslands; isotopes; K-40; mass transfer; metals; Plantae; pollutants; pollution; potassium; radioactive isotopes; soils; terrestrial environment ER - TY - JOUR T1 - Ground-water quality at 94 dairies in New Mexico AN - 52269039; 2001-011178 JF - Open-File Report - U. S. Geological Survey AU - Chesney, Clay AU - Wilde, Franceska D AU - Britton, Linda J AU - Miller, Cherie V AU - Kolpin, Dana W Y1 - 2000 PY - 2000 DA - 2000 SP - 67 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - aquifer vulnerability KW - water quality KW - agricultural waste KW - Ogallala Aquifer KW - New Mexico KW - environmental analysis KW - waste lagoons KW - ground water KW - animal waste KW - nitrate ion KW - USGS KW - geochemistry KW - hydrology KW - concentration KW - monitoring KW - pollutants KW - agriculture KW - pollution KW - hydrochemistry KW - aquifers KW - infiltration KW - runoff KW - land use KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52269039?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Ground-water+quality+at+94+dairies+in+New+Mexico&rft.au=Chesney%2C+Clay%3BWilde%2C+Franceska+D%3BBritton%2C+Linda+J%3BMiller%2C+Cherie+V%3BKolpin%2C+Dana+W&rft.aulast=Chesney&rft.aufirst=Clay&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://water.usgs.gov/owq/AFO/proceedings/afo/OFR/abstracts.pdf https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Conference title - Effects of animal feeding operations on water resources and the environment; technical meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Last updated - 2016-10-25 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - agricultural waste; agriculture; animal waste; aquifer vulnerability; aquifers; concentration; environmental analysis; geochemistry; ground water; hydrochemistry; hydrology; infiltration; land use; monitoring; New Mexico; nitrate ion; Ogallala Aquifer; pollutants; pollution; runoff; United States; USGS; waste lagoons; water quality ER - TY - JOUR T1 - Prediction surface-water impacts from concentrated animal feeding operations; a national analysis AN - 52266664; 2001-011164 JF - Open-File Report - U. S. Geological Survey AU - Zirbser, Kathy AU - Wilde, Franceska D AU - Britton, Linda J AU - Miller, Cherie V AU - Kolpin, Dana W Y1 - 2000 PY - 2000 DA - 2000 SP - 52 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - hydrology KW - water quality KW - concentration KW - agricultural waste KW - oxygen KW - pollutants KW - surface water KW - agriculture KW - solutes KW - prediction KW - pollution KW - environmental effects KW - biota KW - nutrients KW - models KW - dissolved oxygen KW - runoff KW - eutrophication KW - ecology KW - animal waste KW - USGS KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52266664?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Prediction+surface-water+impacts+from+concentrated+animal+feeding+operations%3B+a+national+analysis&rft.au=Zirbser%2C+Kathy%3BWilde%2C+Franceska+D%3BBritton%2C+Linda+J%3BMiller%2C+Cherie+V%3BKolpin%2C+Dana+W&rft.aulast=Zirbser&rft.aufirst=Kathy&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=52&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://water.usgs.gov/owq/AFO/proceedings/afo/OFR/abstracts.pdf https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Conference title - Effects of animal feeding operations on water resources and the environment; technical meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Last updated - 2016-09-16 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - agricultural waste; agriculture; animal waste; biota; concentration; dissolved oxygen; ecology; environmental effects; eutrophication; hydrology; land use; models; nutrients; oxygen; pollutants; pollution; prediction; runoff; solutes; surface water; USGS; water quality ER - TY - JOUR T1 - Occurrence of antibiotics in liquid waste at confined animal feeding operations and in surface and ground water AN - 52265542; 2001-011158 JF - Open-File Report - U. S. Geological Survey AU - Meyer, Michael T AU - Bumgarner, J E AU - Daughtridge, J V AU - Kolpin, Dana W AU - Thurman, E Michael AU - Hostetler, K A AU - Wilde, Franceska D AU - Britton, Linda J AU - Miller, Cherie V Y1 - 2000 PY - 2000 DA - 2000 SP - 45 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - concentration KW - antibiotics KW - agricultural waste KW - pollutants KW - surface water KW - agriculture KW - pollution KW - mass spectra KW - measurement KW - ground water KW - chromatograms KW - immunoassays KW - animal waste KW - spectra KW - USGS KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52265542?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Occurrence+of+antibiotics+in+liquid+waste+at+confined+animal+feeding+operations+and+in+surface+and+ground+water&rft.au=Meyer%2C+Michael+T%3BBumgarner%2C+J+E%3BDaughtridge%2C+J+V%3BKolpin%2C+Dana+W%3BThurman%2C+E+Michael%3BHostetler%2C+K+A%3BWilde%2C+Franceska+D%3BBritton%2C+Linda+J%3BMiller%2C+Cherie+V&rft.aulast=Meyer&rft.aufirst=Michael&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://water.usgs.gov/owq/AFO/proceedings/afo/OFR/abstracts.pdf https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Conference title - Effects of animal feeding operations on water resources and the environment; technical meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Last updated - 2016-10-25 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - agricultural waste; agriculture; animal waste; antibiotics; chromatograms; concentration; ground water; immunoassays; land use; mass spectra; measurement; pollutants; pollution; spectra; surface water; USGS ER - TY - JOUR T1 - U.S. Environmental Protection Agency validation of environmental concerns and development and assessment of national regulations AN - 52263585; 2001-011138 JF - Open-File Report - U. S. Geological Survey AU - Parry, Roberta AU - Wilde, Franceska D AU - Britton, Linda J AU - Miller, Cherie V AU - Kolpin, Dana W Y1 - 2000 PY - 2000 DA - 2000 SP - 21 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - protection KW - water quality KW - agricultural waste KW - pollutants KW - regulations KW - legislation KW - government agencies KW - agriculture KW - U. S. Environmental Protection Agency KW - pollution KW - phosphorus KW - nitrogen KW - nutrients KW - environmental management KW - Clean Water Act KW - animal waste KW - waste disposal KW - industry KW - water resources KW - USGS KW - land use KW - heavy metals KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52263585?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=U.S.+Environmental+Protection+Agency+validation+of+environmental+concerns+and+development+and+assessment+of+national+regulations&rft.au=Parry%2C+Roberta%3BWilde%2C+Franceska+D%3BBritton%2C+Linda+J%3BMiller%2C+Cherie+V%3BKolpin%2C+Dana+W&rft.aulast=Parry&rft.aufirst=Roberta&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://water.usgs.gov/owq/AFO/proceedings/afo/OFR/abstracts.pdf https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Conference title - Effects of animal feeding operations on water resources and the environment; technical meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Last updated - 2016-10-25 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - agricultural waste; agriculture; animal waste; Clean Water Act; environmental management; government agencies; heavy metals; industry; land use; legislation; nitrogen; nutrients; phosphorus; pollutants; pollution; protection; regulations; U. S. Environmental Protection Agency; United States; USGS; waste disposal; water quality; water resources ER - TY - JOUR T1 - Effect of chemical oxidation on subsurface microbiology and trichloroethene (TCE) biodegradation AN - 52251789; 2001-024776 AB - Research was conducted to determine the effect of chemical oxidation on subsurface microbiology and cometabolic biodegradation capacity in a trichloroethene (TCE)/perchloroethene (PCE)-contaminated aquifer previously treated with Fenton's reagent. Groundwater pH declined from 5 to 2.4 immediately after the treatment, and subsequently rose to a range of 3.4 to 4.0 after 17 months. Limited microbial growth and TCE degradation were detected in the treated zone (pH 3.37 and TCE 5 to 21 mg/L) with carbon addition (i.e., methane and phenol). Methane addition resulted in the enrichment of yeast and fungi in microcosms at low pH. In contrast, methane addition to groundwater from the control well (pH 4.9 and TCE ca. 0.7 mg/L) stimulated methanotrophic growth, indicated by methane consumption, fluorescent antibody analysis, phospholipid-based markers, and rDNA probes. TCE degradation was measured in the control microcosms, but only when phenol was added. Although higher TCE concentrations in the treated zone might have inhibited TCE cometabolism, these results also indicate that low groundwater pH resulting from the chemical oxidation process (pH 3.37 versus 4.9) inhibited TCE degradation. Methanotrophic growth and TCE biodegradation may be possible as pH increases both in the treated zone and at the leading edge of plume, as long as the local soil is able to buffer the groundwater pH. Moreover, the Fenton's reagent process could be designed to operate at a higher pH (e.g., > or =4.5) and/or lower hydrogen peroxide concentration to minimize detrimental effects, providing an optimal environment to couple advanced oxidation processes with bioremediation technologies. JF - Bioremediation Journal AU - Kastner, James R AU - Santo Domingo, Jorge AU - Denham, Miles AU - Molina, Marirosa AU - Brigmon, Robin Y1 - 2000 PY - 2000 DA - 2000 SP - 219 EP - 236 PB - CRC Press LLC, Boca Raton, FL VL - 4 IS - 3 SN - 1088-9868, 1088-9868 KW - United States KW - perchloroethene KW - methods KW - chlorinated hydrocarbons KW - South Carolina KW - Appalachians KW - dense nonaqueous phase liquids KW - environmental analysis KW - ground water KW - fungi KW - catalysis KW - sampling KW - yeast KW - halogenated hydrocarbons KW - ion chromotograms KW - Fenton's reagent KW - pH KW - North America KW - biodegradation KW - oxidation KW - pollution KW - biota KW - aquifers KW - nonaqueous phase liquids KW - organic compounds KW - trichloroethylene KW - Savannah River Site KW - Piedmont KW - microorganisms KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52251789?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioremediation+Journal&rft.atitle=Effect+of+chemical+oxidation+on+subsurface+microbiology+and+trichloroethene+%28TCE%29+biodegradation&rft.au=Kastner%2C+James+R%3BSanto+Domingo%2C+Jorge%3BDenham%2C+Miles%3BMolina%2C+Marirosa%3BBrigmon%2C+Robin&rft.aulast=Kastner&rft.aufirst=James&rft.date=2000-01-01&rft.volume=4&rft.issue=3&rft.spage=219&rft.isbn=&rft.btitle=&rft.title=Bioremediation+Journal&rft.issn=10889868&rft_id=info:doi/ L2 - http://www.informaworld.com/smpp/title~content=t713400853 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 51 N1 - PubXState - FL N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Appalachians; aquifers; biodegradation; biota; catalysis; chlorinated hydrocarbons; dense nonaqueous phase liquids; environmental analysis; Fenton's reagent; fungi; ground water; halogenated hydrocarbons; ion chromotograms; methods; microorganisms; nonaqueous phase liquids; North America; organic compounds; oxidation; perchloroethene; pH; Piedmont; pollution; sampling; Savannah River Site; South Carolina; trichloroethylene; United States; yeast ER - TY - JOUR T1 - Geology, hydrology, and ground-water quality of the upper part of the Galena-Platteville Aquifer at the Parson's Casket Hardware Superfund Site in Belvidere, Illinois AN - 52251710; 2001-022784 JF - Water-Resources Investigations - U. S. Geological Survey AU - Kay, Robert T AU - Yeskis, Douglas J AU - Lane, J W, Jr AU - Mills, Patrick C AU - Joesten, P K AU - Cygan, Gary L AU - Ursic, James R Y1 - 2000 PY - 2000 DA - 2000 SP - 43 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - water quality KW - slug tests KW - well-logging KW - environmental analysis KW - ground water KW - geology KW - tests KW - levels KW - Galena-Platteville Aquifer KW - tracers KW - velocity KW - Belvidere Illinois KW - discharge KW - USGS KW - flowmeters KW - Superfund sites KW - hydrology KW - Illinois KW - pollutants KW - pollution KW - Boone County Illinois KW - flows KW - Parson's Casket Hardware Superfund Site KW - boreholes KW - hydraulic conductivity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52251710?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Kay%2C+Robert+T%3BYeskis%2C+Douglas+J%3BLane%2C+J+W%2C+Jr%3BMills%2C+Patrick+C%3BJoesten%2C+P+K%3BCygan%2C+Gary+L%3BUrsic%2C+James+R&rft.aulast=Kay&rft.aufirst=Robert&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Geology%2C+hydrology%2C+and+ground-water+quality+of+the+upper+part+of+the+Galena-Platteville+Aquifer+at+the+Parson%27s+Casket+Hardware+Superfund+Site+in+Belvidere%2C+Illinois&rft.title=Geology%2C+hydrology%2C+and+ground-water+quality+of+the+upper+part+of+the+Galena-Platteville+Aquifer+at+the+Parson%27s+Casket+Hardware+Superfund+Site+in+Belvidere%2C+Illinois&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 28 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - illus. incl. 12 tables, sketch map N1 - SuppNotes - Prepared in cooperation with the U.S. Environmental Protection Agency N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - Belvidere Illinois; Boone County Illinois; boreholes; discharge; environmental analysis; flowmeters; flows; Galena-Platteville Aquifer; geology; ground water; hydraulic conductivity; hydrology; Illinois; levels; Parson's Casket Hardware Superfund Site; pollutants; pollution; slug tests; Superfund sites; tests; tracers; United States; USGS; velocity; water quality; well-logging ER - TY - JOUR T1 - Ecoregions of Wisconsin AN - 52233060; 2001-038436 AB - Ecoregions are geographical areas within which the biotic and abiotic components of terrestrial and aquatic ecosystems exhibit different but relatively homogeneous patterns in comparison to that of other areas. As such these regions serve as a framework for ecosystem management in a holistic sense and allow integration of assessment and management activities across state and federal agencies that may have different responsibilities and missions for the same geographic areas. Most of the spatial frameworks of Wisconsin that are termed ecoregions or have been used for environmental management in the state were designed to address specific aspects of resource management. In a collaborative effort with various state and federal agencies, we have attempted to define a framework to meet broader ecosystem management needs that consider both the terrestrial and aquatic components as well as the human influences and associations with other ecosystem characteristics that affect management potentials for land and water resources. The "Ecoregions of Wisconsin" consist of 27 level IV regions nested within six larger level III regions that also occupy portions of adjoining states. We provide a brief description of the primary distinguishing characteristics (such as soils, vegetation, climate, geology, physiography, water quality, hydrology, and land use) within each level III and IV ecoregion, and discuss the potential applications of the ecoregion map in context of current and future directions of ecosystem management in Wisconsin. JF - Transactions of the Wisconsin Academy of Sciences, Arts and Letters AU - Omernik, James M AU - Chapman, Shannen S AU - Lillie, Richard A AU - Dumke, Robert T Y1 - 2000 PY - 2000 DA - 2000 SP - 77 EP - 103 PB - Wisconsin Academy of Sciences, Arts and Letters, Madison, WI VL - 88 SN - 0084-0505, 0084-0505 KW - United States KW - North America KW - Great Lakes region KW - cartography KW - ecosystems KW - spatial variations KW - geography KW - natural resources KW - land management KW - ecology KW - Wisconsin KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52233060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+Wisconsin+Academy+of+Sciences%2C+Arts+and+Letters&rft.atitle=Ecoregions+of+Wisconsin&rft.au=Omernik%2C+James+M%3BChapman%2C+Shannen+S%3BLillie%2C+Richard+A%3BDumke%2C+Robert+T&rft.aulast=Omernik&rft.aufirst=James&rft.date=2000-01-01&rft.volume=88&rft.issue=&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+Wisconsin+Academy+of+Sciences%2C+Arts+and+Letters&rft.issn=00840505&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 48 N1 - PubXState - WI N1 - Document feature - geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - TWASAB N1 - SubjectsTermNotLitGenreText - cartography; ecology; ecosystems; geography; Great Lakes region; land management; land use; natural resources; North America; spatial variations; United States; Wisconsin ER - TY - JOUR T1 - Delineation of discharge areas of two contaminant plumes by use of diffusion samplers, Johns Pond, Cape Cod, Massachusetts, 1998 AN - 52223137; 2001-045497 JF - Water-Resources Investigations - U. S. Geological Survey AU - Savoie, Jennifer G AU - LeBlanc, Denis R AU - Blackwood, Dann S AU - McCobb, Timothy D AU - Rendigs, Richard R AU - Clifford, Scott Y1 - 2000 PY - 2000 DA - 2000 SP - 30 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - chlorinated hydrocarbons KW - diffusion KW - Cape Cod KW - contaminant plumes KW - pollutants KW - surface water KW - pollution KW - trichloroethane KW - Johns Pond KW - measurement KW - ground water KW - ponds KW - organic compounds KW - Barnstable County Massachusetts KW - sampling KW - Massachusetts KW - halogenated hydrocarbons KW - discharge KW - USGS KW - instruments KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52223137?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Savoie%2C+Jennifer+G%3BLeBlanc%2C+Denis+R%3BBlackwood%2C+Dann+S%3BMcCobb%2C+Timothy+D%3BRendigs%2C+Richard+R%3BClifford%2C+Scott&rft.aulast=Savoie&rft.aufirst=Jennifer&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Delineation+of+discharge+areas+of+two+contaminant+plumes+by+use+of+diffusion+samplers%2C+Johns+Pond%2C+Cape+Cod%2C+Massachusetts%2C+1998&rft.title=Delineation+of+discharge+areas+of+two+contaminant+plumes+by+use+of+diffusion+samplers%2C+Johns+Pond%2C+Cape+Cod%2C+Massachusetts%2C+1998&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 19 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - illus. incl. 6 tables, sketch maps N1 - SuppNotes - Prepared in cooperation with the Air Force Center for Environmental Excellence and the U.S. Environmental Protection Agency N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - Barnstable County Massachusetts; Cape Cod; chlorinated hydrocarbons; contaminant plumes; diffusion; discharge; ground water; halogenated hydrocarbons; instruments; Johns Pond; Massachusetts; measurement; organic compounds; pollutants; pollution; ponds; sampling; surface water; trichloroethane; United States; USGS ER - TY - JOUR T1 - Factors affecting nutrient trends in major rivers of the Chesapeake Bay watershed AN - 52197400; 2001-065874 JF - Water-Resources Investigations - U. S. Geological Survey AU - Sprague, Lori A AU - Langland, Michael J AU - Yochum, Steven E AU - Edwards, Robert E AU - Blomquist, Joel D AU - Phillips, Scott W AU - Shenk, Gary W AU - Preston, Stephen D Y1 - 2000 PY - 2000 DA - 2000 SP - 109 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - Chesapeake Bay KW - rivers and streams KW - watersheds KW - nonpoint sources KW - simulation KW - variations KW - ground water KW - SPARROW KW - drainage basins KW - basin management KW - Maryland KW - USGS KW - hydrology KW - best management practices KW - patterns KW - Delaware KW - Virginia KW - pollutants KW - surface water KW - agriculture KW - pollution KW - nutrients KW - models KW - New York KW - Pennsylvania KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52197400?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Sprague%2C+Lori+A%3BLangland%2C+Michael+J%3BYochum%2C+Steven+E%3BEdwards%2C+Robert+E%3BBlomquist%2C+Joel+D%3BPhillips%2C+Scott+W%3BShenk%2C+Gary+W%3BPreston%2C+Stephen+D&rft.aulast=Sprague&rft.aufirst=Lori&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Factors+affecting+nutrient+trends+in+major+rivers+of+the+Chesapeake+Bay+watershed&rft.title=Factors+affecting+nutrient+trends+in+major+rivers+of+the+Chesapeake+Bay+watershed&rft.issn=0092332X&rft_id=info:doi/ L2 - http://va.water.usgs.gov/online_pubs/WRIR/00-4218.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 31 N1 - PubXState - VA] N1 - Document feature - illus. incl. 33 tables, sketch maps N1 - SuppNotes - Accessed on Aug. 20, 2001; Prepared in cooperation with the Virginia Department of Environmental Quality; Maryland Department of Natural Resources; Susquehanna River Basin Commission; U.S. Environmental Protection Agency N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - agriculture; basin management; best management practices; Chesapeake Bay; Delaware; drainage basins; ground water; hydrology; land use; Maryland; models; New York; nonpoint sources; nutrients; patterns; Pennsylvania; pollutants; pollution; rivers and streams; simulation; SPARROW; surface water; United States; USGS; variations; Virginia; watersheds ER - TY - JOUR T1 - Herbicide transport in subsurface drainage water leaving corn and soybean production systems AN - 52190033; 2001-068557 AB - Herbicides are transported through subsurface drainage to surface waters from corn-growing areas of the USA and Canada. Herbicide losses are highly variable, ranging between 0.01 to 10 g/ha. The magnitude of herbicide loss results from precipitation patterns, herbicide-soil interactions, and farming practices. This report reviews existing literature and presents new research concerning effects of farming practices on herbicide losses in drainage water. Conservation tillage practices which increase infiltration tend to increase herbicide losses. Increasing intensity of drainage and increased frequency and rate of herbicide use also increase herbicide losses. Banding lowers the application rate and reduces annual losses and average concentrations of atrazine compared to broadcast applications. Metolachlor losses were reduced by banding, but the effect was only statistically significant in continuous corn systems. JF - ACS Symposium Series AU - Moorman, T B AU - Kanwar, R S AU - Karlen, D L Y1 - 2000 PY - 2000 DA - 2000 SP - 185 EP - 200 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - United States KW - solute transport KW - environmental analysis KW - ground water KW - triazines KW - agrochemicals KW - animal waste KW - discharge KW - soils KW - concentration KW - experimental studies KW - monitoring KW - yields KW - pollutants KW - herbicides KW - drainage KW - statistical analysis KW - solutes KW - pollution KW - porous materials KW - metolachlor KW - nutrients KW - organic compounds KW - atrazine KW - runoff KW - pesticides KW - land use KW - Midwest KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52190033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=Herbicide+transport+in+subsurface+drainage+water+leaving+corn+and+soybean+production+systems&rft.au=Moorman%2C+T+B%3BKanwar%2C+R+S%3BKarlen%2C+D+L&rft.aulast=Moorman&rft.aufirst=T&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=185&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 42 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-03-14 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agrochemicals; animal waste; atrazine; concentration; discharge; drainage; environmental analysis; experimental studies; ground water; herbicides; land use; metolachlor; Midwest; monitoring; nutrients; organic compounds; pesticides; pollutants; pollution; porous materials; runoff; soils; solute transport; solutes; statistical analysis; triazines; United States; yields ER - TY - JOUR T1 - A small agricultural watershed study on Maryland's outer Atlantic Coastal Plain AN - 52189022; 2001-068551 AB - Seventeen pesticides or their transformation products, dissolved nitrogen and organic carbon were monitored in a stream leading to the Chesapeake Bay's Choptank River estuary during 1996. Pesticide concentrations closely followed the stream hydrograph during the spring and summer. The highest water concentrations measured during the study exceeded freshwater aquatic life guidelines for several compounds including atrazine, chlorothalonil, chlorpyrifos, cyanazine, 2,4-D, diazinon, malathion, metolachlor, simazine, and trifluralin. Bulk atmospheric deposition samples indicate that the atmosphere continues to be an important source of pesticides to the watershed. Sediment levels of current-use pesticides indicated that this medium could be a sink for pesticides in streams and a source of contamination to river estuaries downstream. JF - ACS Symposium Series AU - Johnson, W E AU - Hall, L W, Jr AU - Anderson, R D AU - Rice, C P A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 95 EP - 114 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - United States KW - aquifer vulnerability KW - water quality KW - Chesapeake Bay KW - simulation KW - environmental analysis KW - drinking water KW - ground water KW - triazines KW - simazine KW - carbon KW - agrochemicals KW - alachlor KW - drainage basins KW - Maryland KW - organic carbon KW - Delmarva Peninsula KW - lysimeters KW - Atlantic Coastal Plain KW - soils KW - Choptank River KW - experimental studies KW - Eastern Shore KW - rainfall KW - pollutants KW - herbicides KW - drainage KW - pollution KW - metolachlor KW - aquifers KW - models KW - organic compounds KW - Queen Anne's County Maryland KW - dissolved materials KW - atrazine KW - tillage KW - pesticides KW - leaching KW - pore water KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52189022?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=A+small+agricultural+watershed+study+on+Maryland%27s+outer+Atlantic+Coastal+Plain&rft.au=Johnson%2C+W+E%3BHall%2C+L+W%2C+Jr%3BAnderson%2C+R+D%3BRice%2C+C+P&rft.aulast=Johnson&rft.aufirst=W&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=95&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 37 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agrochemicals; alachlor; aquifer vulnerability; aquifers; Atlantic Coastal Plain; atrazine; carbon; Chesapeake Bay; Choptank River; Delmarva Peninsula; dissolved materials; drainage; drainage basins; drinking water; Eastern Shore; environmental analysis; experimental studies; ground water; herbicides; leaching; lysimeters; Maryland; metolachlor; models; organic carbon; organic compounds; pesticides; pollutants; pollution; pore water; Queen Anne's County Maryland; rainfall; simazine; simulation; soils; tillage; triazines; United States; water quality ER - TY - JOUR T1 - The Midwest water quality initiative; research experiences at multiple scales AN - 52187917; 2001-068559 AB - Increasing concern about the role of farming practices on water quality provided the impetus for a research, education, and extension program in the Midwest. This multi-agency and multi-disciplinary research program was directed to evaluate the effect of farming practices on water quality and to develop farming practices that could be adopted by producers. Projects were conducted in Iowa, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, and Wisconsin. Research studies addressed issues on degradation processes to water flow through the soil as a pesticide and nutrient transport mechanism. This combined effort has integrated many components, and the results have been successfully transferred to users across the Midwest. The results of these efforts demonstrate that it is possible to develop an integrated program that addresses issues on nonpoint source pollution. JF - ACS Symposium Series AU - Hatfield, J L AU - Bucks, D A AU - Horton, M L A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 232 EP - 247 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - United States KW - aquifer vulnerability KW - water quality KW - Missouri KW - data acquisition KW - data processing KW - unsaturated zone KW - techniques KW - nonpoint sources KW - education KW - Iowa KW - environmental analysis KW - remediation KW - ground water KW - North Dakota KW - saturated zone KW - transport KW - agrochemicals KW - Wisconsin KW - Ohio KW - soils KW - programs KW - Minnesota KW - concentration KW - pollutants KW - surface water KW - agriculture KW - pollution KW - MSEA KW - decision-making KW - Management Systems Evaluation Areas Program KW - cost KW - aquifers KW - nutrients KW - models KW - quality control KW - pesticides KW - Nebraska KW - land use KW - South Dakota KW - Midwest KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52187917?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=The+Midwest+water+quality+initiative%3B+research+experiences+at+multiple+scales&rft.au=Hatfield%2C+J+L%3BBucks%2C+D+A%3BHorton%2C+M+L&rft.aulast=Hatfield&rft.aufirst=J&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=232&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 33 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agriculture; agrochemicals; aquifer vulnerability; aquifers; concentration; cost; data acquisition; data processing; decision-making; education; environmental analysis; ground water; Iowa; land use; Management Systems Evaluation Areas Program; Midwest; Minnesota; Missouri; models; MSEA; Nebraska; nonpoint sources; North Dakota; nutrients; Ohio; pesticides; pollutants; pollution; programs; quality control; remediation; saturated zone; soils; South Dakota; surface water; techniques; transport; United States; unsaturated zone; water quality; Wisconsin ER - TY - JOUR T1 - Spring season pattern of nitrate-N and herbicide movement in snowmelt runoff from a loess soil in southwestern Iowa AN - 52187890; 2001-068554 AB - In the Loess Hills along the Missouri River valley of southwestern Iowa, field studies are underway to determine the impact of continuous corn production on both surface water and groundwater quality. The landscape is characterized by gently sloping ridges, steep side slopes, and well-defined alluvial valleys often with incised channels that usually terminate at an active gully head. Surface water quality is evaluated by analyzing field runoff for nitrate-N, atrazine and metolachlor. A comparison among four field-sized watersheds under several different tillage practices reveals different responses to an early spring runoff event. In each case, the long-term impact resulting from more than 20 years of nitrogen fertilization and more than 15 years of atrazine and metolachlor application is assessed. Beneath the snow cover of March 1993, a diurnal freeze-thaw cycle was observed to cause displacement of both nitrate-N and parent herbicides (from past and current applications) in surface runoff generated by melting snowcover. During the five days of repetitive events, the nitrate-N and herbicides exhibited different displacement patterns, perhaps as a result of their fundamentally different chemical properties. JF - ACS Symposium Series AU - Steinheimer, Thomas R AU - Scoggin, K D A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 146 EP - 158 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - United States KW - water quality KW - fertilizers KW - Iowa KW - environmental analysis KW - ground water KW - triazines KW - transport KW - Pottawattamie County Iowa KW - agrochemicals KW - sediments KW - nitrate ion KW - Deep Loess Hills KW - southwestern Iowa KW - clastic sediments KW - pollutants KW - herbicides KW - surface water KW - agriculture KW - pollution KW - metolachlor KW - Missouri River valley KW - organic compounds KW - riparian environment KW - atrazine KW - runoff KW - alluvium KW - tillage KW - seasonal variations KW - pesticides KW - land use KW - meltwater KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52187890?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=Spring+season+pattern+of+nitrate-N+and+herbicide+movement+in+snowmelt+runoff+from+a+loess+soil+in+southwestern+Iowa&rft.au=Steinheimer%2C+Thomas+R%3BScoggin%2C+K+D&rft.aulast=Steinheimer&rft.aufirst=Thomas&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=146&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 21 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agriculture; agrochemicals; alluvium; atrazine; clastic sediments; Deep Loess Hills; environmental analysis; fertilizers; ground water; herbicides; Iowa; land use; meltwater; metolachlor; Missouri River valley; nitrate ion; organic compounds; pesticides; pollutants; pollution; Pottawattamie County Iowa; riparian environment; runoff; seasonal variations; sediments; southwestern Iowa; surface water; tillage; transport; triazines; United States; water quality ER - TY - JOUR T1 - Estimation of potential loss of two pesticides in runoff in Fillmore County, Minnesota using a field-scale process-based model and a geographic information system AN - 52187864; 2001-068556 AB - In assessing the occurrence, behavior, and effects of agricultural chemicals in surface water, the scales of study (i.e., watershed, county, state, and regional areas) are usually much larger than the scale of agricultural fields, where much of the understanding of processes has been developed. Field-scale areas are characterized by relatively homogeneous conditions. The combination of process-based simulation models and geographic information system technology can be used to help extend our understanding of field processes to water-quality concerns at larger scales. To demonstrate this, the model "Groundwater Loading Effects of Agricultural Management Systems" was used to estimate the potential loss of two pesticides (atrazine and permethrin) in runoff to surface water in Fillmore County in southeastern Minnesota. The county was divided into field-scale areas on the basis of a 100 m by 100 m grid, and the influences of soil type and surface topography on the potential losses of the two pesticides in runoff was evaluated for each individual grid cell. The results could be used for guidance for agricultural management and regulatory decisions, for planning environmental monitoring programs, and as an educational tool for the public. JF - ACS Symposium Series AU - Capel, Paul D AU - Zhang, Hua A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 172 EP - 184 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - United States KW - public policy KW - watersheds KW - education KW - environmental analysis KW - ground water KW - environmental management KW - triazines KW - interactive techniques KW - geographic information systems KW - agrochemicals KW - soils KW - hydrology KW - programs KW - Minnesota KW - experimental studies KW - monitoring KW - GLEAMS KW - pollutants KW - herbicides KW - surface water KW - agriculture KW - prediction KW - pollution KW - models KW - Fillmore County Minnesota KW - recharge KW - organic compounds KW - atrazine KW - runoff KW - land management KW - information systems KW - tillage KW - pesticides KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52187864?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=Estimation+of+potential+loss+of+two+pesticides+in+runoff+in+Fillmore+County%2C+Minnesota+using+a+field-scale+process-based+model+and+a+geographic+information+system&rft.au=Capel%2C+Paul+D%3BZhang%2C+Hua&rft.aulast=Capel&rft.aufirst=Paul&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=172&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 21 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agriculture; agrochemicals; atrazine; education; environmental analysis; environmental management; experimental studies; Fillmore County Minnesota; geographic information systems; GLEAMS; ground water; herbicides; hydrology; information systems; interactive techniques; land management; land use; Minnesota; models; monitoring; organic compounds; pesticides; pollutants; pollution; prediction; programs; public policy; recharge; runoff; soils; surface water; tillage; triazines; United States; watersheds ER - TY - JOUR T1 - FILIA determination of imazethapyr herbicide in water AN - 52187826; 2001-068553 AB - In response to the need for a rapid, economical method for determination of the herbicide imazethapyr at low concentrations in water, the capillary FILIA (flow injection liposome immunoanalysis) system has been applied. A capillary tube (57 cmX0.45 mm i.d.) with immobilized imazethapyr antibody was used as the immunoreactor column in the flow injection system. The assay is based on sequential competitive binding between imazethapyr and imazethapyr-tagged liposomes for a limited number of antibody binding sites. Subsequent rupture of the liposomes by injection of a detergent (n-octyl beta -D-glucopyranoside) releases carboxyfluorescein which elutes and is measured fluorometrically. Water samples from wells, lysimeters and run-off were collected from test plots and monitored watersheds following imazethapyr application at the Chesapeake Farms environmental research center (Chestertown, MD). Imazethapyr residues in water samples were concentrated 10 times by partitioning into methylene chloride, which was then evaporated. The residue was dissolved in TBS (Tris-buffered saline) solution and injected onto the immunocolumn. The analysis provides a limit of detection of 0.01 mu g/L and a working range of 0.02-10 mu g/L imazethapyr. JF - ACS Symposium Series AU - Lee, M AU - Durst, R A AU - Spittler, Terry D AU - Forney, D R A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 135 EP - 144 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - United States KW - water quality KW - techniques KW - environmental analysis KW - ground water KW - laboratory studies KW - agrochemicals KW - immunoassays KW - chemical properties KW - ELISA KW - Maryland KW - FILIA KW - Delmarva Peninsula KW - Atlantic Coastal Plain KW - concentration KW - experimental studies KW - imazethapyr KW - pollutants KW - herbicides KW - surface water KW - pollution KW - capillarity KW - Kent County Maryland KW - reagents KW - detergents KW - detection KW - Flow Injection Liposome Immunoanalysis KW - Chestertown Maryland KW - pesticides KW - water wells KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52187826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=FILIA+determination+of+imazethapyr+herbicide+in+water&rft.au=Lee%2C+M%3BDurst%2C+R+A%3BSpittler%2C+Terry+D%3BForney%2C+D+R&rft.aulast=Lee&rft.aufirst=M&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=135&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 16 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agrochemicals; Atlantic Coastal Plain; capillarity; chemical properties; Chestertown Maryland; concentration; Delmarva Peninsula; detection; detergents; ELISA; environmental analysis; experimental studies; FILIA; Flow Injection Liposome Immunoanalysis; ground water; herbicides; imazethapyr; immunoassays; Kent County Maryland; laboratory studies; Maryland; pesticides; pollutants; pollution; reagents; surface water; techniques; United States; water quality; water wells ER - TY - JOUR T1 - Watershed monitoring in sustainable agriculture studies AN - 52187581; 2001-068552 AB - To obtain maximum efficiency and sensitivity in pesticide residue studies of various cropping systems on multiple watersheds at Chesapeake Farms, a Dupont environmental research center, a series of triazines and acetanalides were first analyzed by gaschromatography with electron capture detection (GC-ECD) at sensitivities selected to give the maximum number of direct readings with minimal dilutions (0.5-1.5 ppb). Samples having non-detects for specific compounds in the multi-residue series were individually reanalyzed by enzyme immunoassay at a sensitivity of 0.1 ppb. Two synthetic pyrethroids were also analyzed using similar GC-ECD parameters, and a separate flow injection liposomal immunoassay (FILIA) was developed for imazethapyr. JF - ACS Symposium Series AU - Spittler, Terry D AU - Brightman, S K AU - Humiston, M C AU - Forney, D R A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 126 EP - 134 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - United States KW - Chesapeake Farms KW - gas chromatograms KW - watersheds KW - enzymes KW - environmental analysis KW - triazines KW - agrochemicals KW - immunoassays KW - Maryland KW - mobility KW - Atlantic Coastal Plain KW - hydrology KW - experimental studies KW - monitoring KW - pollutants KW - sustainable agriculture KW - surface water KW - agriculture KW - pollution KW - Kent County Maryland KW - Chester River KW - organic compounds KW - Chestertown Maryland KW - runoff KW - pesticides KW - proteins KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52187581?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=Watershed+monitoring+in+sustainable+agriculture+studies&rft.au=Spittler%2C+Terry+D%3BBrightman%2C+S+K%3BHumiston%2C+M+C%3BForney%2C+D+R&rft.aulast=Spittler&rft.aufirst=Terry&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=126&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 11 N1 - PubXState - DC N1 - Document feature - 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agriculture; agrochemicals; Atlantic Coastal Plain; Chesapeake Farms; Chester River; Chestertown Maryland; environmental analysis; enzymes; experimental studies; gas chromatograms; hydrology; immunoassays; Kent County Maryland; land use; Maryland; mobility; monitoring; organic compounds; pesticides; pollutants; pollution; proteins; runoff; surface water; sustainable agriculture; triazines; United States; watersheds ER - TY - JOUR T1 - Effects of watershed scale agrochemical concentration patterns in Midwestern streams AN - 52187549; 2001-068549 AB - For selected Lake Erie Basin tributaries, detailed studies of nutrient and sediment runoff have been underway since 1974 and of pesticide runoff since 1983. The monitoring stations subtend watersheds ranging in size from 11 km (super 2) to 16,400 km (super 2) and having similar land use and soils. Examination of the agrochemical concentration and loading patterns at these stations reveals systematic changes related to watershed size (scale). As watershed size increases, peak storm event concentrations decrease while the durations of mid-range concentrations lengthen. The extent of these scale effects is parameter specific, being most evident for suspended solids. We hypothesize that these scale effects are attributable to the pathways and timing of pollutant movement from fields into streams, coupled with dilution associated with routing of runoff water into and through the stream system from differing positions in the watershed. These scale effects need to be considered when comparing concentration and loading data from different watersheds and when designing sampling programs. JF - ACS Symposium Series AU - Baker, David B AU - Richards, R Peter A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 46 EP - 64 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - United States KW - Maumee River valley KW - Great Lakes region KW - rivers and streams KW - northwestern Ohio KW - watersheds KW - suspended materials KW - environmental analysis KW - triazines KW - hydrographs KW - agrochemicals KW - sediments KW - drainage basins KW - Lake Erie Basin KW - Ohio KW - hydrology KW - North America KW - concentration KW - patterns KW - monitoring KW - pollutants KW - herbicides KW - surface water KW - pollution KW - metolachlor KW - nutrients KW - organic compounds KW - atrazine KW - runoff KW - pesticides KW - point sources KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52187549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=Effects+of+watershed+scale+agrochemical+concentration+patterns+in+Midwestern+streams&rft.au=Baker%2C+David+B%3BRichards%2C+R+Peter&rft.aulast=Baker&rft.aufirst=David&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=46&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 13 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agrochemicals; atrazine; concentration; drainage basins; environmental analysis; Great Lakes region; herbicides; hydrographs; hydrology; Lake Erie Basin; land use; Maumee River valley; metolachlor; monitoring; North America; northwestern Ohio; nutrients; Ohio; organic compounds; patterns; pesticides; point sources; pollutants; pollution; rivers and streams; runoff; sediments; surface water; suspended materials; triazines; United States; watersheds ER - TY - JOUR T1 - Metolachlor volatilization estimates in central Iowa AN - 52187265; 2001-068558 AB - Volatilization of pesticides has been considered to be a large part of the loss from fields after application; however, few studies have quantified the amount lost to the atmosphere. Volatilization rates of a pre-emergent herbicide, Dual (active ingredient (a.i.) metolachlor 2.24 kg ha (super -1) , (2 - chloro - N - (2-ethyl-6-methylphenyl)-N- (2 - methoxy - 1 - methylethyl)acet amide)), were estimated from a 175 ha field in central Iowa over a period of 4 years. A micrometeorological approach for metolachlor was developed and refined. Flux profile concentrations of metolachlor were found to be large during the first 12-24 hours after application and quickly declined for the duration of the study. Precipitation generally contributed to large but short in duration flux peaks. In 1995 results showed that over a 10-day period, 22% of the applied metolachlor volatilized to the atmosphere. JF - ACS Symposium Series AU - Prueger, J H AU - Hatfield, J L AU - Sauer, T J A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 201 EP - 216 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - United States KW - chlorinated hydrocarbons KW - erosion KW - organochlorine pesticides KW - Iowa KW - environmental analysis KW - volatilization KW - transport KW - agrochemicals KW - halogenated hydrocarbons KW - discharge KW - dieldrin KW - insecticides KW - concentration KW - experimental studies KW - pollutants KW - herbicides KW - wind erosion KW - pollution KW - rates KW - metolachlor KW - mathematical models KW - organic compounds KW - central Iowa KW - pesticides KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52187265?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=Metolachlor+volatilization+estimates+in+central+Iowa&rft.au=Prueger%2C+J+H%3BHatfield%2C+J+L%3BSauer%2C+T+J&rft.aulast=Prueger&rft.aufirst=J&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=201&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agrochemicals; central Iowa; chlorinated hydrocarbons; concentration; dieldrin; discharge; environmental analysis; erosion; experimental studies; halogenated hydrocarbons; herbicides; insecticides; Iowa; land use; mathematical models; metolachlor; organic compounds; organochlorine pesticides; pesticides; pollutants; pollution; rates; transport; United States; volatilization; wind erosion ER - TY - JOUR T1 - Reconnaissance survey of sulfonamide, sulfonylurea, and imidazolinone herbicides in surface streams and groundwater of the midwestern United States AN - 52186593; 2001-068560 AB - The study objective was to conduct a small scale synoptic survey of representative water resources draining agricultural land for occurrence of several herbicide residues. These new classes of herbicides are commonly applied pre-emergence or post-emergence in conservation tillage systems to control grasses and broadleaf weeds in cropped and noncropped areas. Both surface water and groundwater samples were collected from 44 midwestern locations during the summer of 1997, and analyzed for herbicide residues of 15 sulfonylurea and imidazolinone chemicals, and one sulfonamide. Each site was sampled between mid-June and late-October with several stream sites sampled twice. The method, developed jointly by the chemical manufacturer's and the U.S. Environmental Protection Agency, provides a 100 ng/L limit of quantitation in surface water for all analytes. Analytes were detected and identity confirmed in surface water at six sites and in ground water at two sites. The most frequently detected herbicides were imazaquin, imazethapyr, and nicosulfuron. For field studies in which the source of surface and ground water associated with the farming system on the agricultural landscape is known, the sensitivity of the method can be improved with only minor modifications in detection criteria. JF - ACS Symposium Series AU - Steinheimer, Thomas R AU - Pfeiffer, R L AU - Scoggin, K D AU - Battaglin, W A A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 248 EP - 271 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - United States KW - gauging KW - water quality KW - Upper Mississippi Valley KW - degradation KW - agricultural waste KW - Mississippi Valley KW - Mississippi River basin KW - imidazolinone KW - Iowa KW - environmental analysis KW - ground water KW - urea KW - conservation KW - agrochemicals KW - sulfonylurea KW - chemical properties KW - chemical composition KW - soils KW - sulfonamide KW - North America KW - concentration KW - organic minerals KW - Illinois KW - pollutants KW - herbicides KW - drainage KW - surface water KW - pollution KW - surveys KW - tillage KW - seasonal variations KW - waste disposal KW - pesticides KW - water resources KW - land use KW - soil management KW - Midwest KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52186593?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=Reconnaissance+survey+of+sulfonamide%2C+sulfonylurea%2C+and+imidazolinone+herbicides+in+surface+streams+and+groundwater+of+the+midwestern+United+States&rft.au=Steinheimer%2C+Thomas+R%3BPfeiffer%2C+R+L%3BScoggin%2C+K+D%3BBattaglin%2C+W+A&rft.aulast=Steinheimer&rft.aufirst=Thomas&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=248&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agricultural waste; agrochemicals; chemical composition; chemical properties; concentration; conservation; degradation; drainage; environmental analysis; gauging; ground water; herbicides; Illinois; imidazolinone; Iowa; land use; Midwest; Mississippi River basin; Mississippi Valley; North America; organic minerals; pesticides; pollutants; pollution; seasonal variations; soil management; soils; sulfonamide; sulfonylurea; surface water; surveys; tillage; United States; Upper Mississippi Valley; urea; waste disposal; water quality; water resources ER - TY - JOUR T1 - Runoff losses of suspended sediment and herbicides; comparison of results from 90.2- and 4-h plots AN - 52186543; 2001-068555 AB - Over the last dozen years we have conducted field studies of runoff losses of herbicides and suspended sediment. In this paper we investigate the possible influence of plot size on our results by comparing data from plots of 0.21 and 4.4 ha. At the areal extent of our studies, this assessment fails to reveal a consistent plot size influence on runoff losses of atrazine and metolachlor, chemicals of moderate to high water solubility. The data may indicate more efficient extraction from soil into runoff of these herbicides in the larger plots. The runoff results for trifluralin and pendimethalin, of low water solubility, may indicate a plot size influence but also can be explained by a year effect related to application differences. Sediment yield in runoff has been sensitive to the plot size differences in our work: from the smaller plots we have observed three times larger sediment yields. JF - ACS Symposium Series AU - Southwick, L M AU - Meek, D W AU - Bengtson, R L AU - Fouss, J L AU - Willis, G H A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 159 EP - 171 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - degradation KW - stream transport KW - suspended materials KW - triazines KW - agrochemicals KW - sediment yield KW - sediments KW - chemical properties KW - soils KW - hydrology KW - experimental studies KW - pollutants KW - herbicides KW - agriculture KW - pollution KW - metolachlor KW - solubility KW - organic compounds KW - dissolved materials KW - atrazine KW - runoff KW - risk assessment KW - pesticides KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52186543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=Runoff+losses+of+suspended+sediment+and+herbicides%3B+comparison+of+results+from+90.2-+and+4-h+plots&rft.au=Southwick%2C+L+M%3BMeek%2C+D+W%3BBengtson%2C+R+L%3BFouss%2C+J+L%3BWillis%2C+G+H&rft.aulast=Southwick&rft.aufirst=L&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=159&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agriculture; agrochemicals; atrazine; chemical properties; degradation; dissolved materials; experimental studies; herbicides; hydrology; land use; metolachlor; organic compounds; pesticides; pollutants; pollution; risk assessment; runoff; sediment yield; sediments; soils; solubility; stream transport; suspended materials; triazines ER - TY - JOUR T1 - 215th ACS national meeting AN - 52186495; 2001-068546 JF - ACS Symposium Series A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 396 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - soils KW - concentration KW - pollutants KW - herbicides KW - surface water KW - watersheds KW - pollution KW - ecosystems KW - preferential flow KW - ground water KW - fate KW - transport KW - symposia KW - agrochemicals KW - sediments KW - pesticides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52186495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=ACS+Symposium+Series&rft.atitle=215th+ACS+national+meeting&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Individual chapters within scope are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agrochemicals; concentration; ecosystems; fate; ground water; herbicides; pesticides; pollutants; pollution; preferential flow; sediments; soils; surface water; symposia; transport; watersheds ER - TY - JOUR T1 - International perspectives on contaminated land AN - 52186376; 2001-070077 JF - Environmental Science and Pollution Control Series AU - James, Stephen C AU - Kovalick, Walter W, Jr A2 - Wise, Donald L. A2 - Trantolo, Debra J. A2 - Cichon, Edward J. A2 - Inyang, Hilary I. A2 - Stottmeister, Ulrich Y1 - 2000 PY - 2000 DA - 2000 SP - 1 EP - 62 PB - Marcel Dekker, New York - Basel - Hong Kong VL - 23 KW - soils KW - regulations KW - public policy KW - pollution KW - international cooperation KW - remediation KW - ground water KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52186376?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+and+Pollution+Control+Series&rft.atitle=International+perspectives+on+contaminated+land&rft.au=James%2C+Stephen+C%3BKovalick%2C+Walter+W%2C+Jr&rft.aulast=James&rft.aufirst=Stephen&rft.date=2000-01-01&rft.volume=23&rft.issue=&rft.spage=1&rft.isbn=0824703324&rft.btitle=&rft.title=Environmental+Science+and+Pollution+Control+Series&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 11 N1 - Last updated - 2012-06-07 N1 - CODEN - #03947 N1 - SubjectsTermNotLitGenreText - ground water; international cooperation; pollution; public policy; regulations; remediation; soils ER - TY - JOUR T1 - Potential for herbicide contamination of groundwater on sandy soils of the Delmarva Peninsula AN - 52186062; 2001-068550 AB - Herbicide leaching was investigated in a field study, modeling study and rainfall simulation experiment on Coastal Plain sandy soils. In the field experiment, alachlor was detected more frequently than atrazine or metolachlor in the groundwater. The GLEAMS model simulations indicated that there is a great potential for herbicide leaching into the watertable aquifer. For the 100-year storm, the total annual leaching amounts for atrazine ranged from 0.4 to 5.9% of the applied herbicide for rainfall occurring 3, 7, 15, 30 and 90 days after herbicide application. Atrazine, alachlor, simazine, cyanazine and metolachlor all moved below the root zone after 75 mm of rainfall was applied in the rainfall simulation experiment. Alachlor was detected more frequently than the other herbicides in the lysimeters and ground water. JF - ACS Symposium Series AU - Ritter, W F AU - Chirnside, A E M AU - Scarborough, R W AU - Steenhuis, T S A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 80 EP - 94 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - United States KW - aquifer vulnerability KW - water quality KW - Sussex County Delaware KW - detection limit KW - simulation KW - environmental analysis KW - drinking water KW - ground water KW - triazines KW - simazine KW - agrochemicals KW - alachlor KW - sediments KW - Delmarva Peninsula KW - lysimeters KW - Atlantic Coastal Plain KW - soils KW - hydrology KW - sand KW - experimental studies KW - Delaware KW - GLEAMS KW - clastic sediments KW - rainfall KW - pollutants KW - herbicides KW - pollution KW - metolachlor KW - mathematical models KW - aquifers KW - models KW - organic compounds KW - atrazine KW - tillage KW - pesticides KW - leaching KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52186062?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=Potential+for+herbicide+contamination+of+groundwater+on+sandy+soils+of+the+Delmarva+Peninsula&rft.au=Ritter%2C+W+F%3BChirnside%2C+A+E+M%3BScarborough%2C+R+W%3BSteenhuis%2C+T+S&rft.aulast=Ritter&rft.aufirst=W&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=80&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 13 N1 - PubXState - DC N1 - Document feature - 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agrochemicals; alachlor; aquifer vulnerability; aquifers; Atlantic Coastal Plain; atrazine; clastic sediments; Delaware; Delmarva Peninsula; detection limit; drinking water; environmental analysis; experimental studies; GLEAMS; ground water; herbicides; hydrology; leaching; lysimeters; mathematical models; metolachlor; models; organic compounds; pesticides; pollutants; pollution; rainfall; sand; sediments; simazine; simulation; soils; Sussex County Delaware; tillage; triazines; United States; water quality ER - TY - JOUR T1 - The potential of vegetated filter strips to reduce pesticide transport AN - 52185762; 2001-068561 AB - Reduction of pesticide transport to surface water resources to avoid water quality problems can involve both in-field and off-site approaches. One promising practice that is receiving increased emphasis, and that bridges both approaches, is the use of vegetated filter strips, either within the field or between the field border and a water resource of concern. Two main factors that affect the efficiency of pesticide transport reduction are the cropping/filter strip area ratio and the properties, and therefore major transport mechanism, of the pesticide. Area ratios as low as 1:1, for example with strip cropping, where one of the two equal strips is cropped without use of the pesticide of concern, can be very effective and much more so than say for a situation where the ratio is >50. Because vegetated filter strips are generally much more effective at reducing sediment transport than runoff volume, losses of pesticides that are more strongly adsorbed are more readily controlled. JF - ACS Symposium Series AU - Baker, J L AU - Michelson, S K AU - Arora, K AU - Misra, A K A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 272 EP - 285 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - water quality KW - buffers KW - techniques KW - vegetation KW - simulation KW - remediation KW - bioaccumulation KW - grasses KW - controls KW - triazines KW - transport KW - agrochemicals KW - soils KW - hydrology KW - best management practices KW - monitoring KW - rainfall KW - pollutants KW - herbicides KW - drainage KW - surface water KW - pollution KW - metolachlor KW - habitat KW - organic compounds KW - atrazine KW - erosion control KW - cyanazine KW - pesticides KW - water resources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52185762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=The+potential+of+vegetated+filter+strips+to+reduce+pesticide+transport&rft.au=Baker%2C+J+L%3BMichelson%2C+S+K%3BArora%2C+K%3BMisra%2C+A+K&rft.aulast=Baker&rft.aufirst=J&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=272&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - 12 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agrochemicals; atrazine; best management practices; bioaccumulation; buffers; controls; cyanazine; drainage; erosion control; grasses; habitat; herbicides; hydrology; metolachlor; monitoring; organic compounds; pesticides; pollutants; pollution; rainfall; remediation; simulation; soils; surface water; techniques; transport; triazines; vegetation; water quality; water resources ER - TY - JOUR T1 - Agrochemical movement; perspective and scale-of-study overview AN - 52185725; 2001-068547 AB - Scientists today acknowledge the important role played by agrochemicals in maintaining agricultural production, yet issues remain concerning the movement of these crop protection chemicals away from their points of application and into nontarget natural resources. A wide variety of chemicals are used to address different pest control needs. The choices made by the producer often are determined by the nature of the landscape, pest cycles, cropping systems, weather patterns, and the economics of production. Hence, they differ across the U.S. We present an overview of incidental movement studies of pesticides used in production agriculture and their potential nontarget impacts within three distinct geophysical regions of the United States. Examples from laboratory, test plot, and field investigations of agrochemical movement will illustrate the importance of scale in the study design in the Chesapeake Bay Watershed, on the Midwestern Plains, and in California's San Joaquin Valley. JF - ACS Symposium Series AU - Steinheimer, Thomas R AU - Ross, Lisa J AU - Spittler, Terry D A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 2 EP - 18 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - United States KW - water quality KW - fertilizers KW - Chesapeake Bay KW - fungicides KW - preferential flow KW - nonpoint sources KW - production KW - environmental analysis KW - California KW - laboratory studies KW - agrochemicals KW - chemical properties KW - Great Plains KW - soils KW - North America KW - insecticides KW - experimental studies KW - San Joaquin Valley KW - pollutants KW - herbicides KW - agriculture KW - pollution KW - case studies KW - pesticides KW - land use KW - soil management KW - Midwest KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52185725?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=Agrochemical+movement%3B+perspective+and+scale-of-study+overview&rft.au=Steinheimer%2C+Thomas+R%3BRoss%2C+Lisa+J%3BSpittler%2C+Terry+D&rft.aulast=Steinheimer&rft.aufirst=Thomas&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=2&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 18 N1 - PubXState - DC N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agriculture; agrochemicals; California; case studies; chemical properties; Chesapeake Bay; environmental analysis; experimental studies; fertilizers; field studies; fungicides; Great Plains; herbicides; insecticides; laboratory studies; land use; Midwest; nonpoint sources; North America; pesticides; pollutants; pollution; preferential flow; production; San Joaquin Valley; soil management; soils; United States; water quality ER - TY - JOUR T1 - The role of dissolved organic matter in pesticide transport through soil AN - 52185612; 2001-068562 AB - Soil derived dissolved organic matter (DOM) can complex with pesticides and facilitate their transport through soil. Soil column leaching experiments showed that, in the absence of preferential flow, the herbicide napropmaide was present in the initial leachate. A stable, non-retarded, complex formed between napropamide and DOM that was capable of transport through soil columns. The presence of a napropamide-DOM complex in the leachate was confirmed using an equilibrium dialysis technique. Batch equilibrium adsorption techniques qualitatively predicted the transport of napropamide in soil. The formation of the napropamide-DOM complex was dependent on a drying event where napropamide was applied to the soil and allowed to dry prior to water application. JF - ACS Symposium Series AU - Letey, J AU - Williams, C F AU - Farmer, W J AU - Nelson, S D AU - Agassi, M AU - Ben-Hur, M Y1 - 2000 PY - 2000 DA - 2000 SP - 347 EP - 360 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - chlorinated hydrocarbons KW - sorption KW - organochlorine pesticides KW - preferential flow KW - partitioning KW - chemical reactions KW - transport KW - agrochemicals KW - chemical properties KW - leachate KW - halogenated hydrocarbons KW - chemical composition KW - soils KW - insecticides KW - concentration KW - experimental studies KW - pollutants KW - herbicides KW - solutes KW - pollution KW - adsorption KW - equilibrium KW - organic compounds KW - napropmide KW - DDT KW - pesticides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52185612?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=The+role+of+dissolved+organic+matter+in+pesticide+transport+through+soil&rft.au=Letey%2C+J%3BWilliams%2C+C+F%3BFarmer%2C+W+J%3BNelson%2C+S+D%3BAgassi%2C+M%3BBen-Hur%2C+M&rft.aulast=Letey&rft.aufirst=J&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=347&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 46 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-03-14 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - adsorption; agrochemicals; chemical composition; chemical properties; chemical reactions; chlorinated hydrocarbons; concentration; DDT; equilibrium; experimental studies; halogenated hydrocarbons; herbicides; insecticides; leachate; napropmide; organic compounds; organochlorine pesticides; partitioning; pesticides; pollutants; pollution; preferential flow; soils; solutes; sorption; transport ER - TY - JOUR T1 - Monitoring pesticide runoff and leaching from four farming systems on field-scale coastal plain watersheds in Maryland AN - 52185363; 2001-068548 AB - Losses of herbicides in runoff and leachate were measured in four different production systems. These production systems varied in the amounts and types of herbicides used, from preemergence applications of products used in the kg/ha, to selective use of postemergence herbicides used in g/ha. The highest herbicide concentrations in runoff samples were found in the first runoff event after application. Herbicides used at higher use rates were found in higher concentrations in both runoff and leachate samples. Incorporation of herbicides greatly reduced runoff losses. Herbicides used at similar rates but with shorter half-lives were found at lower concentrations in leachate samples. No-till treatments resulted in the highest concentrations in the leachate. JF - ACS Symposium Series AU - Forney, D R AU - Strahan, J AU - Rankin, C AU - Steffin, D AU - Peter, C J AU - Spittler, Terry D AU - Baker, J L A2 - Steinheimer, Thomas R. A2 - Ross, Lisa J. A2 - Spittler, Terry D. Y1 - 2000 PY - 2000 DA - 2000 SP - 20 EP - 45 PB - American Chemical Society, Washington, DC VL - 751 SN - 0097-6156, 0097-6156 KW - United States KW - water quality KW - degradation KW - watersheds KW - ecosystems KW - environmental analysis KW - irrigation KW - triazines KW - toxicity KW - transport KW - agrochemicals KW - sediments KW - leachate KW - Maryland KW - Delmarva Peninsula KW - mobility KW - Atlantic Coastal Plain KW - soils KW - hydrology KW - concentration KW - experimental studies KW - Eastern Shore KW - monitoring KW - pollutants KW - herbicides KW - surface water KW - agriculture KW - pollution KW - optimization KW - porous materials KW - Kent County Maryland KW - habitat KW - organic compounds KW - Chestertown Maryland KW - atrazine KW - runoff KW - risk assessment KW - pesticides KW - leaching KW - pore water KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52185363?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=Monitoring+pesticide+runoff+and+leaching+from+four+farming+systems+on+field-scale+coastal+plain+watersheds+in+Maryland&rft.au=Forney%2C+D+R%3BStrahan%2C+J%3BRankin%2C+C%3BSteffin%2C+D%3BPeter%2C+C+J%3BSpittler%2C+Terry+D%3BBaker%2C+J+L&rft.aulast=Forney&rft.aufirst=D&rft.date=2000-01-01&rft.volume=751&rft.issue=&rft.spage=20&rft.isbn=0841236089&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 37 N1 - PubXState - DC N1 - Document feature - illus. incl. 9 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - agriculture; agrochemicals; Atlantic Coastal Plain; atrazine; Chestertown Maryland; concentration; degradation; Delmarva Peninsula; Eastern Shore; ecosystems; environmental analysis; experimental studies; habitat; herbicides; hydrology; irrigation; Kent County Maryland; land use; leachate; leaching; Maryland; mobility; monitoring; optimization; organic compounds; pesticides; pollutants; pollution; pore water; porous materials; risk assessment; runoff; sediments; soils; surface water; toxicity; transport; triazines; United States; water quality; watersheds ER - TY - JOUR T1 - Mercury in Green Bay, Lake Michigan surficial sediments collected between 1987 and 1990 AN - 52168926; 2001-077524 AB - Sediments were collected by gravity core from 74 locations in Green Bay, Lake Michigan. Surficial sediments (0 to 1 cm depth) from these stations were analyzed for total mercury for the purpose of describing the horizontal variation of mercury in Green Bay sediments, estimating mercury fluxes to surficial sediments, and identifying potential sources of mercury. With concentrations ranging between 0.006 and 1.0 mg/kg, the surficial sediments had a mean mercury concentration of 0.36 mg/kg. The median concentration was 0.28 mg/kg. Surficial sediment mercury concentrations were highest along the eastern shore between the cities of Green Bay and Sturgeon Bay. Elevated concentrations were also found near Escanaba and west of Chambers Island. Lowest concentrations were found north, south, and west of Washington Island and near the Little Suamico River. Mercury fluxes ranged between 0.03 and 100 ng/cm (super 2) /y, with a mean of 20 ng/cm (super 2) /y. Only 14% of this flux is delivered by regional atmospheric sources. The Fox River is the dominant contributor, and the majority of the total mercury flux to the bay is delivered by the rivers that are tributary to the bay. JF - Journal of Great Lakes Research AU - Rossmann, Ronald AU - Edgington, David N Y1 - 2000 PY - 2000 DA - 2000 SP - 323 EP - 339 PB - International Association for Great Lakes Research (IAGLR), Ann Arbor, MI VL - 25 IS - 3 SN - 0380-1330, 0380-1330 KW - United States KW - water quality KW - North America KW - stream transport KW - Fox River KW - pollutants KW - surface water KW - Green Bay KW - water management KW - pollution KW - Lake Michigan KW - metals KW - Sturgeon Bay KW - sediments KW - lacustrine environment KW - Great Lakes KW - Wisconsin KW - water resources KW - mercury KW - lake sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52168926?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Great+Lakes+Research&rft.atitle=Mercury+in+Green+Bay%2C+Lake+Michigan+surficial+sediments+collected+between+1987+and+1990&rft.au=Rossmann%2C+Ronald%3BEdgington%2C+David+N&rft.aulast=Rossmann&rft.aufirst=Ronald&rft.date=2000-01-01&rft.volume=25&rft.issue=3&rft.spage=323&rft.isbn=&rft.btitle=&rft.title=Journal+of+Great+Lakes+Research&rft.issn=03801330&rft_id=info:doi/ L2 - http://www.iaglr.org/jglr/journal.php LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 40 N1 - PubXState - MI N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JGLRDE N1 - SubjectsTermNotLitGenreText - Fox River; Great Lakes; Green Bay; lacustrine environment; Lake Michigan; lake sediments; mercury; metals; North America; pollutants; pollution; sediments; stream transport; Sturgeon Bay; surface water; United States; water management; water quality; water resources; Wisconsin ER - TY - JOUR T1 - Mine and mill waste characterization using CASI/SFSI hyperspectral data; Utah abandoned mine lands study areas AN - 52163591; 2001-079546 AB - This project team has been evaluating the application of CASI and SFSI hyperspectral sensor data to mine and mill wastes in central Utah, specifically in the International Smelter area near Tooele and in the Tintic and Stockton mining districts. AVIRIS data have been used as a basis for evaluating the relative importance of spatial and spectral resolution for identifying and characterizing wastes. The Bauer Mill in the Stockton District represents a completely unreclaimed mill site, with associated exposed tailings and waste dumps. Near the other end of the reclamation spectrum is the International Smelter area, which was reclaimed in the late 1980s and converted to a State Wildlife Reservation. These two sites allow identification of mineralogy and chemical conditions (such as potential or actual acid production) in the raw state (Bauer Mill) and where they are impacting revegetation success (International Smelter). The Stockton District is the oldest mining district in Utah and allowed evaluation of abandoned underground mines and dumps of various sizes for acid-production potential and any apparent impacts on the Rush Lake watershed. In the Tintic District, emphasis was placed upon the Dragon Pit and surroundings. This mine served as a common comparison site for the various airborne data collection and processing teams involved in the EPA project. JF - Proceedings of the ... International Conference on Applied Geologic Remote Sensing AU - Peters, Douglas C AU - Hauff, Phoebe L AU - Borstad, Gary A AU - Henderson, Frederick B, III AU - Peppin, William A AU - Dillenbeck, Eric D AU - Prosh, Eric C AU - Closs, L Graham AU - Thiros, James L AU - Coulter, David W AU - Lee, Keenan AU - Robbins, Donald A AU - Wangerud, Kenneth W AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 54 EP - 61 PB - Veridian ERIM International, Ann Arbor, MI VL - 14 KW - United States KW - North America KW - mines KW - Rush Lake KW - geophysical surveys KW - Basin and Range Province KW - geophysical methods KW - Tooele County Utah KW - Stockton mining district KW - infrared methods KW - AVIRIS KW - Tintic mining district KW - industrial waste KW - drainage basins KW - surveys KW - Utah KW - waste disposal KW - Bauer Mill KW - spectroscopy KW - abandoned mines KW - remote sensing KW - airborne methods KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52163591?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+...+International+Conference+on+Applied+Geologic+Remote+Sensing&rft.atitle=Mine+and+mill+waste+characterization+using+CASI%2FSFSI+hyperspectral+data%3B+Utah+abandoned+mine+lands+study+areas&rft.au=Peters%2C+Douglas+C%3BHauff%2C+Phoebe+L%3BBorstad%2C+Gary+A%3BHenderson%2C+Frederick+B%2C+III%3BPeppin%2C+William+A%3BDillenbeck%2C+Eric+D%3BProsh%2C+Eric+C%3BCloss%2C+L+Graham%3BThiros%2C+James+L%3BCoulter%2C+David+W%3BLee%2C+Keenan%3BRobbins%2C+Donald+A%3BWangerud%2C+Kenneth+W%3BAnonymous&rft.aulast=Peters&rft.aufirst=Douglas&rft.date=2000-01-01&rft.volume=14&rft.issue=&rft.spage=54&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+...+International+Conference+on+Applied+Geologic+Remote+Sensing&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fourteenth international conference on Applied geologic remote sensing N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 6 N1 - PubXState - MI N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #05641 N1 - SubjectsTermNotLitGenreText - abandoned mines; airborne methods; AVIRIS; Basin and Range Province; Bauer Mill; drainage basins; geophysical methods; geophysical surveys; industrial waste; infrared methods; mines; North America; remote sensing; Rush Lake; spectroscopy; Stockton mining district; surveys; Tintic mining district; Tooele County Utah; United States; Utah; waste disposal ER - TY - JOUR T1 - Wellhead protection program implementation progress AN - 52161103; 2002-001601 JF - Ground Water Monitoring & Remediation AU - Hamilton, James P Y1 - 2000 PY - 2000 DA - 2000 SP - 44 EP - 47 PB - Ground Water Publishing Co., Dublin, OH VL - 20 IS - 1 SN - 1069-3629, 1069-3629 KW - United States KW - protection KW - aquifer vulnerability KW - water quality KW - programs KW - toxic materials KW - monitoring KW - regulations KW - legislation KW - pollution KW - decision-making KW - Safe Drinking Water Act KW - ground water KW - aquifers KW - wellhead protection KW - risk assessment KW - economics KW - water resources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52161103?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water+Monitoring+%26+Remediation&rft.atitle=Wellhead+protection+program+implementation+progress&rft.au=Hamilton%2C+James+P&rft.aulast=Hamilton&rft.aufirst=James&rft.date=2000-01-01&rft.volume=20&rft.issue=1&rft.spage=44&rft.isbn=&rft.btitle=&rft.title=Ground+Water+Monitoring+%26+Remediation&rft.issn=10693629&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6592 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - OH N1 - Document feature - 2 tables N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; decision-making; economics; ground water; legislation; monitoring; pollution; programs; protection; regulations; risk assessment; Safe Drinking Water Act; toxic materials; United States; water quality; water resources; wellhead protection ER - TY - JOUR T1 - Utilization of geomechanical properties of gob to enhance gob gas recovery and purity AN - 52153392; 2002-006696 JF - Proceedings of the ... North American Rock Mechanics Symposium AU - Brunner, D AU - Harpalani, S AU - Schultz, K A2 - Girard, Jami M. A2 - Liebman, Mark A2 - Breeds, Christopher D. A2 - Doe, Thomas Y1 - 2000 PY - 2000 DA - 2000 SP - 439 EP - 446 PB - A. A. Balkema, Rotterdam VL - 4 KW - processes KW - mining KW - mines KW - pressure KW - geologic hazards KW - engineering properties KW - coal mines KW - mechanical properties KW - recovery KW - rock mechanics KW - gases KW - fractures KW - boreholes KW - mining geology KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52153392?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+...+North+American+Rock+Mechanics+Symposium&rft.atitle=Utilization+of+geomechanical+properties+of+gob+to+enhance+gob+gas+recovery+and+purity&rft.au=Brunner%2C+D%3BHarpalani%2C+S%3BSchultz%2C+K&rft.aulast=Brunner&rft.aufirst=D&rft.date=2000-01-01&rft.volume=4&rft.issue=&rft.spage=439&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+...+North+American+Rock+Mechanics+Symposium&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fourth North American rock mechanics symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 13 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #04569 N1 - SubjectsTermNotLitGenreText - boreholes; coal mines; engineering properties; fractures; gases; geologic hazards; mechanical properties; mines; mining; mining geology; pressure; processes; recovery; rock mechanics ER - TY - JOUR T1 - Tests of alternative final landfill covers using innovative water balance monitoring systems AN - 52084224; 2002-059092 AB - Traditional designs for final landfill covers have utilized components such as geomembranes and low-permeability soil layers to minimize infiltration into waste. Federal regulations allow alternative earthen designs that emphasize water storage and transpiration by plants, but require demonstration of performance equivalent to that of the low-permeability prescriptive designs. Few field data sets exist that provide direct measurement of prescriptive or alternative cover performance. In 1999 the U. S. Environmental Protection Agency's Alternative Cover Assessment Project (ACAP) began construction of a network of field-scale facilities designed to evaluate the performance of both prescriptive and alternative covers. Cover designs to be tested are placed in large (10 mX20 m) pan lysimeters. Field data include direct measurement of drainage, surface runoff, soil moisture content, soil moisture potential, precipitation, and several additional meteorological parameters. Twelve test sites, including 21 lysimeters, are planned throughout the U. S. To date (July, 2000) 8 sites have been built with the remainder to be completed in 2000. At several locations prescriptive designs are being tested alongside proposed alternative designs. Prescriptive covers include both composite (which include a geomembrane) and compacted clay designs. Tested alternative designs typically emphasize relatively thick soil layers with high water holding capacity combined with a selection of plants designed to maximize transpiration throughout the soil depth and throughout the growing season. As construction of ACAP facilities is completed and the plant communities mature, the program will provide data to support development of site-specific cover designs and improvements in numerical modeling methods. Preliminary data from the three sites constructed in 1999 suggest that, at least for sites in arid and semi-arid sites, alternatives can match the performance of prescriptive designs. The purpose of this presentation is to introduce the ACAP program, describe the testing facilities and cover designs, and to present preliminary data that have been collected. JF - Abstracts with Programs - Geological Society of America AU - Albright, William H AU - Benson, Craig H AU - Gee, Glendon W AU - Rock, Steven AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 126 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - clay KW - communities KW - moisture KW - regulations KW - landfills KW - sediments KW - lysimeters KW - disposal barriers KW - soils KW - hydrology KW - Plantae KW - monitoring KW - clastic sediments KW - rainfall KW - drainage KW - geomembranes KW - water balance KW - measurement KW - infiltration KW - runoff KW - testing KW - waste disposal KW - permeability KW - design KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52084224?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Tests+of+alternative+final+landfill+covers+using+innovative+water+balance+monitoring+systems&rft.au=Albright%2C+William+H%3BBenson%2C+Craig+H%3BGee%2C+Glendon+W%3BRock%2C+Steven%3BAnonymous&rft.aulast=Albright&rft.aufirst=William&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=126&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - clastic sediments; clay; communities; design; disposal barriers; drainage; geomembranes; hydrology; infiltration; landfills; lysimeters; measurement; moisture; monitoring; permeability; Plantae; rainfall; regulations; runoff; sediments; soils; testing; United States; waste disposal; water balance ER - TY - JOUR T1 - Phyto-technologies for achieving environmental goals AN - 52084167; 2002-059088 AB - Engineered planted systems can be used for a variety of environmental goals including contaminated groundwater plume interception, waste isolation, degradation or extraction of contaminants in soil, and sequestration of atmospheric carbon. Some systems can be installed to accomplish more than one task either simultaneously or sequentially. Frequently plant based systems are cost competitive to more traditional approaches such as pump-and treat, occasionally competing successfully with the operations and maintenance cost alone. System design must include such site specific factors as climate, soil type, contaminant depth and time. This presentation will include an overview of phyto-technologies and a review of planted systems on Superfund sites. JF - Abstracts with Programs - Geological Society of America AU - Rock, Steven AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 126 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - soils KW - technology KW - degradation KW - contaminant plumes KW - Superfund KW - carbon KW - pollution KW - atmosphere KW - pump-and-treat KW - cost KW - design KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52084167?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Phyto-technologies+for+achieving+environmental+goals&rft.au=Rock%2C+Steven%3BAnonymous&rft.aulast=Rock&rft.aufirst=Steven&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=126&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - atmosphere; carbon; contaminant plumes; cost; degradation; design; pollution; pump-and-treat; soils; Superfund; technology ER - TY - JOUR T1 - Phytoremediation/contaminated groundwater consumption by hybrid poplar trees AN - 52083946; 2002-059090 AB - A pilot-scale phytoremediation study was implemented spring 1996 at Edgewood Area, Aberdeen Proving Ground, in Harford County, Maryland. A portion of approximately one acre was planted with 183 hybrid poplars (Populus deltoides x trichocarpa cv. HP-510) in an effort to intercept and contain volatile organic compounds (VOCs) in groundwater originating from former disposal pits. Contaminants of concern were primarily trichloroethene (TCE) and 1,1,2,2,-tetrachloroethane (TCA). Phytoremediation was chosen due to lack of time limitations, a sensitive environment, high groundwater, design flexibility, and proven ability of poplar trees to remove the contaminants of concern. Estimates show that a 23.66 L/minute groundwater extraction system sufficiently controls groundwater flow in the area (Quinn et al. 1996). Poplar trees were chosen because they are phreatophytic and the contaminated groundwater at this site is relatively shallow. Hybrids were chosen because leaf area are considerably larger than parent species, potentially allowing greater evapotranspiration with faster rate of growth (Chappell, 1998). Trees were initially planted two to eight feet below ground surface with monitoring wells and lysimeters installed strategically throughout the site. Calculations reveal the trees remove more than 4000 liters (L) of groundwater per day during active growing season, estimated to increase to more than 7500 L per day as trees fully mature. Data indicate the trees impact groundwater elevation during growing season. Detection of VOCs and degradation products in transpiration gas, condensate, and leaf tissue indicates the trees are removing or degrading contaminants of concern from the aquifer, although the mechanism and rate of VOC removal are unknown. Sap flow rates and surficial ground water levels provide evidence that containment and interception of groundwater flow is occurring. Models have been used to estimate that site contaminants may be reduced by up to 85% in 30 years. This study provides evidence that phytoremediation can be successfully applied to sites with similar hydrogeologic settings that satisfy application criteria. JF - Abstracts with Programs - Geological Society of America AU - Compton, Harry R AU - Wrobel, John G AU - Hirsh, Steven AU - Burgess, Amy AU - Schneider, William AU - Haroski, Dale AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 126 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - chlorinated hydrocarbons KW - Spermatophyta KW - Populus KW - Aberdeen Proving Ground KW - observation wells KW - tetrachloroethylene KW - remediation KW - ground water KW - levels KW - movement KW - Populus deltoides KW - Harford County Maryland KW - halogenated hydrocarbons KW - applications KW - Maryland KW - phytoremediation KW - lysimeters KW - Atlantic Coastal Plain KW - Plantae KW - pollutants KW - pollution KW - bioremediation KW - volatiles KW - organic compounds KW - volatile organic compounds KW - trees KW - trichloroethylene KW - seasonal variations KW - Angiospermae KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52083946?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Phytoremediation%2Fcontaminated+groundwater+consumption+by+hybrid+poplar+trees&rft.au=Compton%2C+Harry+R%3BWrobel%2C+John+G%3BHirsh%2C+Steven%3BBurgess%2C+Amy%3BSchneider%2C+William%3BHaroski%2C+Dale%3BAnonymous&rft.aulast=Compton&rft.aufirst=Harry&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=126&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Aberdeen Proving Ground; Angiospermae; applications; Atlantic Coastal Plain; bioremediation; chlorinated hydrocarbons; ground water; halogenated hydrocarbons; Harford County Maryland; levels; lysimeters; Maryland; movement; observation wells; organic compounds; phytoremediation; Plantae; pollutants; pollution; Populus; Populus deltoides; remediation; seasonal variations; Spermatophyta; tetrachloroethylene; trees; trichloroethylene; United States; volatile organic compounds; volatiles ER - TY - JOUR T1 - A Swedish countryside survey for monitoring of landscape features, biodiversity and cultural heritage; the LIM-Project AN - 52071335; 2002-062985 JF - Advances in Ecological Sciences AU - Ihse, M AU - Blom, G A2 - Mander, U. A2 - Jongman, R. H. G. Y1 - 2000 PY - 2000 DA - 2000 SP - 39 EP - 74 PB - Wit Press, Southampton VL - 5 SN - 1369-8273, 1369-8273 KW - monitoring KW - Western Europe KW - Europe KW - information management KW - observations KW - data management KW - Scandinavia KW - land management KW - LIM Project KW - ecology KW - land use KW - Sweden KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52071335?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Ecological+Sciences&rft.atitle=A+Swedish+countryside+survey+for+monitoring+of+landscape+features%2C+biodiversity+and+cultural+heritage%3B+the+LIM-Project&rft.au=Ihse%2C+M%3BBlom%2C+G&rft.aulast=Ihse&rft.aufirst=M&rft.date=2000-01-01&rft.volume=5&rft.issue=&rft.spage=39&rft.isbn=1853126500&rft.btitle=&rft.title=Advances+in+Ecological+Sciences&rft.issn=13698273&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 32 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - data management; ecology; Europe; information management; land management; land use; LIM Project; monitoring; observations; Scandinavia; Sweden; Western Europe ER - TY - JOUR T1 - Long-term performance monitoring of permeable reactive barriers to remediate contaminated ground water AN - 52050073; 2002-077776 AB - Permeable reactive barriers (PRB's) are an alternative in-situ approach for remediating contaminated groundwater that combine subsurface fluid flow management with a passive chemical treatment zone. PRB's are being selected with increased frequency at waste sites (more than 40 full-scale installations as of 8/00 at a current rate of about 15 per year) around the world. The U. S. Environmental Protection Agency's Office of Research and Development (USEPA-ORD) has been one of the leading groups in researching applications of PRB's for many different types of contaminants, studying improved engineering designs, evaluating installation and operating techniques, coordinating long-term performance research, and providing technology transfer (e.g., workshops, training courses). The national Risk Management Research Laboratory of USEPA-ORD is currently involved in federal tri-agency initiative (Department of Energy, Department of Defense) to study the long-term performance of PRB's at a dozen PRB installations across the United States. All of these sites have used zero-valent iron as the reactive media in the PRB's and many have been installed since 1996. This presentation will focus on the initial results of that study. In particular, it will emphasize the EPA study sites and examine the following: long-term effects on hydrologic flow patterns in the vicinity of barriers; the rate of precipitate formation in the reaction zone due to the corrosion of the iron; and microbiological effects within and near the barriers as a result of their placement within the subsurface. This is an abstract of a proposed presentation and does not necessarily reflect EPA policy. JF - Abstracts with Programs - Geological Society of America AU - Puls, Robert W AU - Khan, Faruque AU - Wilkin, Rick AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 139 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - monitoring KW - in situ KW - water management KW - pollution KW - iron KW - remediation KW - ground water KW - precipitation KW - metals KW - applications KW - waste disposal KW - water pollution KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52050073?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Long-term+performance+monitoring+of+permeable+reactive+barriers+to+remediate+contaminated+ground+water&rft.au=Puls%2C+Robert+W%3BKhan%2C+Faruque%3BWilkin%2C+Rick%3BAnonymous&rft.aulast=Puls&rft.aufirst=Robert&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - applications; ground water; in situ; iron; metals; monitoring; pollution; precipitation; remediation; waste disposal; water management; water pollution ER - TY - JOUR T1 - Why we bother; the importance of environmental risk assessments AN - 52050030; 2002-077774 AB - From an ethical, financial and even legal standpoint, it is important that all parties involved in the investigation and cleanup of a contaminated site clearly understand the scientific basis behind the need for these actions. An environmental risk assessment is intended to serve this purpose. The risk assessment provides an understanding of the fate and transport of the contaminants, describes how and to what extent human and non-human receptors may be exposed, and evaluates the nature and magnitude of adverse effects that this exposure may lead to. Conclusions drawn from the risk assessment then assist the regulator in determining and justifying the appropriate level of remedial action that should be carried out. A risk-based approach to site investigation and cleanup is particularly critical for middle-class property owners and small-business owners, who make up the overwhelming majority of the regulated community and are likely to suffer significant financial hardships if environmental cleanup requirements are imposed. Risk assessments provide a rational endpoint to the investigation and cleanup process and allow limited resources to be focused where most needed. Unfortunately, the preparation of thorough, site-specific risk assessments at small- to medium-size sites is generally time- and cost-prohibitive. Low-cost, "expedited" risk assessments are typically inconsistent between sites and often contain significant errors. This has spurned understandable but misplaced criticism for risk assessments in general. The development and application of well-thought-out, conservative, risk-based screening levels by regulatory agencies is an effective means to address these issues. Environmental concerns typically addressed include: 1) protection of drinking water resources, 2) protection of human health through direct contact, 3) protection of aquatic and terrestrial ecological receptors and 4) protection against adverse nuisance issues. Comparison of site data to a comprehensive set of screening levels can help to rapidly and cost-effectively identify potential environmental concerns and, if needed, provide a science-based justification for the imposition of sometimes harsh cleanup requirements. JF - Abstracts with Programs - Geological Society of America AU - Brewer, Roger D AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 138 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - terrestrial environment KW - transport KW - regulations KW - pollution KW - risk assessment KW - policy KW - ecology KW - water resources KW - drinking water KW - aquatic environment KW - remediation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52050030?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Why+we+bother%3B+the+importance+of+environmental+risk+assessments&rft.au=Brewer%2C+Roger+D%3BAnonymous&rft.aulast=Brewer&rft.aufirst=Roger&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=138&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquatic environment; drinking water; ecology; policy; pollution; regulations; remediation; risk assessment; terrestrial environment; transport; water resources ER - TY - JOUR T1 - Influence of groundwater geochemistry on the long-term performance of in-situ permeable reactive barriers containing zero-valent iron AN - 52048513; 2002-077777 AB - Reactive barriers that couple subsurface fluid flow with a passive chemical treatment zone are emerging, cost effective approaches for in-situ remediation of contaminated groundwater. Factors such as the build-up of surface precipitates, bio-fouling, and changes in subsurface transport control long-term performance of such Permeable Reactive Barriers. Surface precipitates can impact long-term performance by decreasing iron reactivity, and by decreasing pore space/permeability that may result in detrimental rerouting of subsurface flow paths. Reactive barriers containing zero-valent iron alter ambient groundwater chemistry by increasing pH, PH2, and decreasing the oxidation-reduction potential. Depending on the composition and oxidation state of ambient groundwater, these conditions can favor the precipitation of mixed iron oxyhydroxides, Ca-Fe carbonates, magnetite, or mixed valence Fe(II)/Fe(III) ternary compounds (such as green rusts). In sulfate-rich groundwaters, reducing conditions promote microbial sulfate reduction and the precipitation of iron monosulfides and subsequent transformation to pyrite. We present results of long-term monitoring studies (groundwater chemistry and soil/iron characterization) from PRBs at the U. S. Coast Guard Base (Elizabeth City, NC) and the Denver Federal Center (Lakewood, CO), each with contrasting groundwater compositions. At both sites, reactive barriers have been in place for about 4 years. We present a comparison of groundwater equilibrium modeling with the results of mineralogical characterization using microscopy, XPS, and extraction studies. This is an abstract of a proposed presentation and does not necessarily reflect EPA policy. JF - Abstracts with Programs - Geological Society of America AU - Wilkin, R T AU - Kahn, F AU - Puls, Robert W AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 139 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - characterization KW - iron KW - remediation KW - ground water KW - ferric iron KW - reactivity KW - mineral composition KW - water treatment KW - movement KW - oxides KW - Pasquotank County North Carolina KW - water pollution KW - geochemistry KW - Eh KW - Atlantic Coastal Plain KW - in situ KW - Elizabeth City North Carolina KW - oxyhydroxides KW - pollution KW - hydrochemistry KW - ferrous iron KW - models KW - hydroxides KW - X-ray data KW - precipitation KW - metals KW - North Carolina KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52048513?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Influence+of+groundwater+geochemistry+on+the+long-term+performance+of+in-situ+permeable+reactive+barriers+containing+zero-valent+iron&rft.au=Wilkin%2C+R+T%3BKahn%2C+F%3BPuls%2C+Robert+W%3BAnonymous&rft.aulast=Wilkin&rft.aufirst=R&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Atlantic Coastal Plain; characterization; Eh; Elizabeth City North Carolina; ferric iron; ferrous iron; geochemistry; ground water; hydrochemistry; hydroxides; in situ; iron; metals; mineral composition; models; movement; North Carolina; oxides; oxyhydroxides; Pasquotank County North Carolina; pollution; precipitation; reactivity; remediation; United States; water pollution; water treatment; X-ray data ER - TY - JOUR T1 - Interactions between dissolved organic matter and mercury AN - 51977118; 2003-045695 JF - Open-File Report - U. S. Geological Survey AU - Aiken, George R AU - Reddy, Mike M AU - Ravichandran, Mahalingam AU - Ryan, Joseph N AU - Eggleston, Jane R AU - Embry, Teresa L AU - Mooney, Robert H AU - Wedderburn, Leslie AU - Goodwin, Carl R AU - Henkel, Heather S AU - Pegram, Kathleen M H AU - Enright, Tracy J Y1 - 2000 PY - 2000 DA - 2000 SP - 57 EP - 58 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - soils KW - concentration KW - Chordata KW - Everglades KW - pollutants KW - solutes KW - pollution KW - bioavailability KW - Florida KW - ground water KW - bioaccumulation KW - Pisces KW - organic compounds KW - mitigation KW - transport KW - metals KW - ecology KW - Vertebrata KW - USGS KW - mercury KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51977118?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Interactions+between+dissolved+organic+matter+and+mercury&rft.au=Aiken%2C+George+R%3BReddy%2C+Mike+M%3BRavichandran%2C+Mahalingam%3BRyan%2C+Joseph+N%3BEggleston%2C+Jane+R%3BEmbry%2C+Teresa+L%3BMooney%2C+Robert+H%3BWedderburn%2C+Leslie%3BGoodwin%2C+Carl+R%3BHenkel%2C+Heather+S%3BPegram%2C+Kathleen+M+H%3BEnright%2C+Tracy+J&rft.aulast=Aiken&rft.aufirst=George&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://sofia.usgs.gov/publications/ofr/00-449/ https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Conference title - Greater Everglades ecosystem restoration (GEER) conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - VA N1 - Last updated - 2016-09-16 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - bioaccumulation; bioavailability; Chordata; concentration; ecology; Everglades; Florida; ground water; mercury; metals; mitigation; organic compounds; Pisces; pollutants; pollution; soils; solutes; transport; United States; USGS; Vertebrata ER - TY - JOUR T1 - Spatial changes in redox conditions and food web relations at low and high nutrient sites in the Everglades AN - 51976689; 2003-045696 JF - Open-File Report - U. S. Geological Survey AU - Kendall, Carol AU - Silva, Steven R AU - Chang, Cecily C Y AU - Bemis, Bryan AU - Wankel, Scott AU - Dias, Robert F AU - Garrison, Paul J AU - Lange, Ted AU - Krabbenhoft, David P AU - Stober, Q Jerry AU - Eggleston, Jane R AU - Embry, Teresa L AU - Mooney, Robert H AU - Wedderburn, Leslie AU - Goodwin, Carl R AU - Henkel, Heather S AU - Pegram, Kathleen M H AU - Enright, Tracy J Y1 - 2000 PY - 2000 DA - 2000 SP - 59 EP - 61 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - isotopes KW - bioavailability KW - vegetation KW - Florida KW - stable isotopes KW - nitrogen KW - bioaccumulation KW - Pisces KW - carbon KW - sediments KW - Invertebrata KW - ecology KW - USGS KW - Eh KW - Insecta KW - Chordata KW - N-15/N-14 KW - food chains KW - Everglades KW - pollutants KW - isotope ratios KW - C-13/C-12 KW - pollution KW - bioassays KW - nutrients KW - biogenic processes KW - Arthropoda KW - Mandibulata KW - Vertebrata KW - aquatic environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51976689?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Spatial+changes+in+redox+conditions+and+food+web+relations+at+low+and+high+nutrient+sites+in+the+Everglades&rft.au=Kendall%2C+Carol%3BSilva%2C+Steven+R%3BChang%2C+Cecily+C+Y%3BBemis%2C+Bryan%3BWankel%2C+Scott%3BDias%2C+Robert+F%3BGarrison%2C+Paul+J%3BLange%2C+Ted%3BKrabbenhoft%2C+David+P%3BStober%2C+Q+Jerry%3BEggleston%2C+Jane+R%3BEmbry%2C+Teresa+L%3BMooney%2C+Robert+H%3BWedderburn%2C+Leslie%3BGoodwin%2C+Carl+R%3BHenkel%2C+Heather+S%3BPegram%2C+Kathleen+M+H%3BEnright%2C+Tracy+J&rft.aulast=Kendall&rft.aufirst=Carol&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=59&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://sofia.usgs.gov/publications/ofr/00-449/ https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Conference title - Greater Everglades ecosystem restoration (GEER) conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 63 N1 - PubXState - VA N1 - Document feature - illus. N1 - Last updated - 2016-10-25 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - aquatic environment; Arthropoda; bioaccumulation; bioassays; bioavailability; biogenic processes; C-13/C-12; carbon; Chordata; ecology; Eh; Everglades; Florida; food chains; Insecta; Invertebrata; isotope ratios; isotopes; Mandibulata; N-15/N-14; nitrogen; nutrients; Pisces; pollutants; pollution; sediments; stable isotopes; United States; USGS; vegetation; Vertebrata ER - TY - JOUR T1 - Amelioration of acid mine drainage using reactive mixtures in permeable reactive barriers AN - 51968763; 2003-052664 AB - The generation and release of acidic drainage from mine wastes is an environmental problem of international scale. The use of zero-valent iron and/or iron mixtures in subsurface Permeable Reactive Barriers (PRB) presents a possible passive alternative for remediating acidic groundwater contaminated by heavy metals. A series of batch studies were carried out to evaluate the performance of various types of zero-valent iron and/or reactive media for the amelioration of acid mine drainage (AMD). Fisher iron, Connelly iron, and mixtures of Fisher iron, calcium sulfide (30%-50% grout), and natural zeolite (clinoptilolite) were exposed to an AMD solution. Experimental results show that all zero-valent iron mixtures remove metals (Al, Cu, Zn, Co, Ni, Cd, Pb, As) from solutions to concentrations near detection limits of ICP-OES analytical methods. Within 100 hours, solution pH increases from 2.3 to steady, near-neutral values (5.5-7); alkaline pH was reached using Fe degrees -CaS mixtures. The pH increase correlates with the decrease in metal concentrations and the rate of pH increase is proportional to the reactant mass (surface area). Concentrations of total iron increase from initial values of 3 mM to final values after 500 h of 20 mM (zero-valent iron) and 10 mM (zero-valent iron+clinoptilolite). Substantial amounts of Fe and Al hydroxides precipitate as pH increases. Such precipitates likely serve as sorption sites for transition metals; they also could lead to decreased PRB longevity, pore clogging, and remedial failure. Concentrations of total iron decrease to below detection limits after reaction with Fe-CaS mixtures. Attempts to remobilize metals by oxidation with air-saturated water were unsuccessful indicating that zero-valent iron mixtures are stable sinks for metal contaminants. This is an abstract of a proposed presentation and does not necessarily reflect EPA policy. JF - Abstracts with Programs - Geological Society of America AU - McNeil, Mary S AU - Wilkin, Richard T AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 284 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - zinc KW - cobalt KW - acid mine drainage KW - solutions KW - copper KW - arsenic KW - pollution KW - lead KW - iron hydroxides KW - iron KW - remediation KW - emission spectra KW - hydroxides KW - aluminum hydroxides KW - detection KW - precipitation KW - metals KW - aluminum KW - nickel KW - cadmium KW - oxides KW - spectra KW - pH KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51968763?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Amelioration+of+acid+mine+drainage+using+reactive+mixtures+in+permeable+reactive+barriers&rft.au=McNeil%2C+Mary+S%3BWilkin%2C+Richard+T%3BAnonymous&rft.aulast=McNeil&rft.aufirst=Mary&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=284&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - acid mine drainage; aluminum; aluminum hydroxides; arsenic; cadmium; cobalt; copper; detection; emission spectra; hydroxides; iron; iron hydroxides; lead; metals; nickel; oxides; pH; pollution; precipitation; remediation; solutions; spectra; zinc ER - TY - JOUR T1 - Field measurement of dissolved oxygen; a comparison of techniques AN - 51966326; 2003-052688 AB - The measurement and interpretation of geochemical redox parameters are key components of ground water remedial investigations. Dissolved oxygen (DO) is perhaps the most robust geochemical parameter in redox characterization; however, recent work has indicated a need for proper data review, validation, and verification of geochemical parameters, such as DO, that are routinely collected in the field. The purpose of this study, therefore, was to compare the commonly practiced methods for determining dissolved oxygen concentrations in the field, and develop quality control methods for data verification that can be implemented in the field at the time of sample collection. This study was conducted at four field sites each with different ground water compositions and contaminant types. Comparisons were made using several methods developed for the measurement of DO: Winkler titrimetric method (azide and permanganate modifications), membrane-covered electrode method, indigo carmine colorimetric method and rhodazine D colorimetric method (Chemets). The accuracy of these methods was evaluated in the field by determining DO concentrations of prepared standards using air and O2-N2 gas mixtures. The dissolved oxygen data were compared to the known concentrations to determine the most reliable method(s) for DO determination. We found excellent correlation between Winkler titrations and colorimetric techniques at DO levels from 0 to 5.5 mg/L. Below 1 mg/L DO, the rhodazine D reagent provides accurate and highly reproducible DO values and is not subject to interference with ferrous iron, a common component of low DO ground waters. Although the research described in this article has been funded wholly or in part by the U. S. EPA, it has not been subjected to the Agency's peer and administrative review; no endorsement may be inferred. JF - Abstracts with Programs - Geological Society of America AU - Adair, C J AU - Wilkin, Richard T AU - McNeil, M S AU - Wilson, J T AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 288 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - chemical analysis KW - titration KW - oxygen KW - characterization KW - pollution KW - techniques KW - hydrochemistry KW - iron KW - remediation KW - measurement KW - ground water KW - ferrous iron KW - reagents KW - dissolved materials KW - metals KW - colorimetry KW - interpretation KW - geochemistry KW - Eh KW - field studies KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51966326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Field+measurement+of+dissolved+oxygen%3B+a+comparison+of+techniques&rft.au=Adair%2C+C+J%3BWilkin%2C+Richard+T%3BMcNeil%2C+M+S%3BWilson%2C+J+T%3BAnonymous&rft.aulast=Adair&rft.aufirst=C&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=288&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - characterization; chemical analysis; colorimetry; dissolved materials; Eh; ferrous iron; field studies; geochemistry; ground water; hydrochemistry; interpretation; iron; measurement; metals; oxygen; pollution; reagents; remediation; techniques; titration ER - TY - JOUR T1 - Mary Murphy's chest pains; resorting to geological angioplasty to study specific metals loading at a high-altitude mine site AN - 51922132; 2003-077025 AB - Mine sites in high-altitude watersheds in the Rocky Mountains of the western USA have often related water-quality problems. Most mine systems are fractured systems modified by mine workings. Samples from the discharges at drain tunnels provide information only about a mixture of many flow components and provide little information about specific flow components. Inactive mine workings often contain blockages that perturb their flow systems making simple flow concepts difficult to test. At the Mary Murphy mine site in Central Colorado, sufficient data have been collected to show what can be achieved with specific data from individual flows. Initially an assessment was made by analysis of metals in ground- and surface water. Chloride was used as a tracer in surface streams to learn about potential pathways for metals loading there. Fluorescent dyes were used for tracing mine and bedrock pathways. Tritium data yielded additional residence time information. Sections of the mine were entered and individual flows and discharges from drain tunnels were studied. Stable isotopes were used to assess the nature of the recharge. Stream and ground-water tracing results showed discrete ground-water pathways with velocities of more than 0.001 m s-1 feeding surface streams, only partially through mine workings. Responses to the spring snow melt lasts weeks and isotopic signatures suggest that most mine waters for most of the year isotopically resemble high-altitude ground-water rather than recent precipitation. Individual recharge components into the mine must be studied to find out their water quality as only some may be affected. Only a small fraction of the flow into the mine is significantly loaded with metals. JF - Abstracts with Programs - Geological Society of America AU - Davies, Gareth J AU - Wireman, Michael AU - Stover, Bruce K AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 362 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - water quality KW - mining KW - isotopes KW - halogens KW - watersheds KW - atmospheric precipitation KW - tritium KW - ground water KW - radioactive isotopes KW - chloride ion KW - Western U.S. KW - mining geology KW - tracers KW - velocity KW - central Colorado KW - Mary Murphy Mine KW - discharge KW - rain KW - hydrology KW - chlorine KW - North America KW - drainage KW - surface water KW - pollution KW - recharge KW - metals KW - hydrogen KW - Colorado KW - Rocky Mountains KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51922132?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Mary+Murphy%27s+chest+pains%3B+resorting+to+geological+angioplasty+to+study+specific+metals+loading+at+a+high-altitude+mine+site&rft.au=Davies%2C+Gareth+J%3BWireman%2C+Michael%3BStover%2C+Bruce+K%3BAnonymous&rft.aulast=Davies&rft.aufirst=Gareth&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=362&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; central Colorado; chloride ion; chlorine; Colorado; discharge; drainage; ground water; halogens; hydrogen; hydrology; isotopes; Mary Murphy Mine; metals; mining; mining geology; North America; pollution; radioactive isotopes; rain; recharge; Rocky Mountains; surface water; tracers; tritium; United States; velocity; water quality; watersheds; Western U.S. ER - TY - JOUR T1 - A modeling framework for mercury cycling in Lake Michigan AN - 51919195; 2003-080633 JF - Program and Abstracts of the ... Conference of the International Association for Great Lakes Research AU - Zhang, X AU - Rygwelski, K R AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 PB - International Association for Great Lakes Research (IAGLR), [location varies] VL - 43 KW - methylation KW - hydrology KW - North America KW - concentration KW - pollutants KW - surface water KW - pollution KW - organo-metallics KW - inorganic materials KW - geochemical cycle KW - models KW - limnology KW - Lake Michigan KW - methylmercury KW - dynamics KW - metals KW - mass balance KW - sediments KW - lacustrine environment KW - Great Lakes KW - geochemistry KW - mercury KW - lake sediments KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51919195?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Program+and+Abstracts+of+the+...+Conference+of+the+International+Association+for+Great+Lakes+Research&rft.atitle=A+modeling+framework+for+mercury+cycling+in+Lake+Michigan&rft.au=Zhang%2C+X%3BRygwelski%2C+K+R%3BAnonymous&rft.aulast=Zhang&rft.aufirst=X&rft.date=2000-01-01&rft.volume=43&rft.issue=&rft.spage=A.174&rft.isbn=&rft.btitle=&rft.title=Program+and+Abstracts+of+the+...+Conference+of+the+International+Association+for+Great+Lakes+Research&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 43rd conference on Great Lakes and St. Lawrence River research ; IAGLR 2000 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #05410 N1 - SubjectsTermNotLitGenreText - concentration; dynamics; geochemical cycle; geochemistry; Great Lakes; hydrology; inorganic materials; lacustrine environment; Lake Michigan; lake sediments; limnology; mass balance; mercury; metals; methylation; methylmercury; models; North America; organo-metallics; pollutants; pollution; sediments; surface water ER - TY - JOUR T1 - Lead, copper, zinc, and cadmium in Lake Michigan surficial sediments AN - 51918750; 2003-080606 JF - Program and Abstracts of the ... Conference of the International Association for Great Lakes Research AU - Rossmann, R AU - Fashbaugh, B A AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 PB - International Association for Great Lakes Research (IAGLR), [location varies] VL - 43 KW - zinc KW - North America KW - concentration KW - copper KW - pollutants KW - pollution KW - mass spectra KW - lead KW - distribution KW - cores KW - ICP mass spectra KW - limnology KW - Lake Michigan KW - metals KW - sediments KW - lacustrine environment KW - cadmium KW - Great Lakes KW - trace metals KW - spectra KW - geochemistry KW - lake sediments KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51918750?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Program+and+Abstracts+of+the+...+Conference+of+the+International+Association+for+Great+Lakes+Research&rft.atitle=Lead%2C+copper%2C+zinc%2C+and+cadmium+in+Lake+Michigan+surficial+sediments&rft.au=Rossmann%2C+R%3BFashbaugh%2C+B+A%3BAnonymous&rft.aulast=Rossmann&rft.aufirst=R&rft.date=2000-01-01&rft.volume=43&rft.issue=&rft.spage=A.133&rft.isbn=&rft.btitle=&rft.title=Program+and+Abstracts+of+the+...+Conference+of+the+International+Association+for+Great+Lakes+Research&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 43rd conference on Great Lakes and St. Lawrence River research ; IAGLR 2000 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #05410 N1 - SubjectsTermNotLitGenreText - cadmium; concentration; copper; cores; distribution; geochemistry; Great Lakes; ICP mass spectra; lacustrine environment; Lake Michigan; lake sediments; lead; limnology; mass spectra; metals; North America; pollutants; pollution; sediments; spectra; trace metals; zinc ER - TY - JOUR T1 - Downhole video analysis of water supply wells; problem identification and well rehabilitation AN - 51914170; 2004-000268 AB - Methods to improve groundwater quality or declining well yield begin with an analysis of the well environment. The dynamic conditions within a borehole and surrounding groundwater reservoirs correlate with functional, geological, biological, and chemical factors within. Water discoloration and turbidity, along with smell and taste, are the first warning signs of well problems. Key indicators of well dysfunction are degradation in water quality and declining well yield. A water well is an active environment and is best interpreted through direct observation during periods of static rest, pumping stress, and recharge. Pumping influences groundwater by creating decreased pressure along preferential pathways away from the well. When these pathways occur too shallow or along high angle fractures, unfiltered near-surface water is pulled down into the well bore. Often, near-surface water is high in nutrients and supports rapid growth of bacteria within the well. Downhole video cameras allow for direct observation and characterization of the inside of the water well. JF - IAHS-AISH Publication AU - Vaught, Michael L AU - Bresler, Lynne E A2 - Reichard, Eric G. A2 - Hauchman, Fred S. A2 - Sanchia, Ana Maria Y1 - 2000 PY - 2000 DA - 2000 SP - 87 EP - 90 PB - International Association of Hydrological Sciences VL - 260 SN - 0144-7815, 0144-7815 KW - water quality KW - pollutants KW - video methods KW - pumping KW - pollution KW - downhole methods KW - environmental analysis KW - cost KW - remediation KW - ground water KW - bacteria KW - risk assessment KW - water wells KW - water resources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51914170?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=Downhole+video+analysis+of+water+supply+wells%3B+problem+identification+and+well+rehabilitation&rft.au=Vaught%2C+Michael+L%3BBresler%2C+Lynne+E&rft.aulast=Vaught&rft.aufirst=Michael&rft.date=2000-01-01&rft.volume=260&rft.issue=&rft.spage=87&rft.isbn=1901502112&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Second international symposium on Assessing and managing health risks from drinking water contamination; approaches and applications N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 10 N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - bacteria; cost; downhole methods; environmental analysis; ground water; pollutants; pollution; pumping; remediation; risk assessment; video methods; water quality; water resources; water wells ER - TY - JOUR T1 - Second international symposium on Assessing and managing health risks from drinking water contamination; approaches and applications AN - 51914110; 2004-000259 JF - IAHS-AISH Publication A2 - Reichard, Eric G. A2 - Hauchman, Fred S. A2 - Sanchia, Ana Maria Y1 - 2000 PY - 2000 DA - 2000 SP - 177 PB - International Association of Hydrological Sciences VL - 260 SN - 0144-7815, 0144-7815 KW - water quality KW - toxicity KW - symposia KW - water management KW - pollution KW - risk assessment KW - water resources KW - environmental analysis KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51914110?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=IAHS-AISH+Publication&rft.atitle=Second+international+symposium+on+Assessing+and+managing+health+risks+from+drinking+water+contamination%3B+approaches+and+applications&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2000-01-01&rft.volume=260&rft.issue=&rft.spage=&rft.isbn=1901502112&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Second international symposium on Assessing and managing health risks from drinking water contamination; approaches and applications N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - SuppNotes - Individual papers within scope are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - environmental analysis; pollution; public health; risk assessment; symposia; toxicity; water management; water quality; water resources ER - TY - JOUR T1 - On the use of groundwater-driven health risk assessment in hazardous waste site management AN - 51913864; 2004-000270 JF - IAHS-AISH Publication AU - Maxwell, Reed M AU - Pelmulder, Susan D AU - Tompson, Andrew F B AU - Kastenberg, William E A2 - Reichard, Eric G. A2 - Hauchman, Fred S. A2 - Sanchia, Ana Maria Y1 - 2000 PY - 2000 DA - 2000 SP - 176 EP - 177 PB - International Association of Hydrological Sciences VL - 260 SN - 0144-7815, 0144-7815 KW - models KW - hazardous waste KW - waste management KW - migration KW - experimental studies KW - waste disposal sites KW - pollution KW - risk assessment KW - uncertainty KW - public health KW - ground water KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51913864?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=On+the+use+of+groundwater-driven+health+risk+assessment+in+hazardous+waste+site+management&rft.au=Maxwell%2C+Reed+M%3BPelmulder%2C+Susan+D%3BTompson%2C+Andrew+F+B%3BKastenberg%2C+William+E&rft.aulast=Maxwell&rft.aufirst=Reed&rft.date=2000-01-01&rft.volume=260&rft.issue=&rft.spage=176&rft.isbn=1901502112&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Second international symposium on Assessing and managing health risks from drinking water contamination; approaches and applications N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - experimental studies; ground water; hazardous waste; migration; models; pollution; public health; risk assessment; uncertainty; waste disposal sites; waste management ER - TY - JOUR T1 - Coal mining activity and radium isotope contamination of river water in Silesia, Poland AN - 51913635; 2004-000264 AB - The aim of this research was to determine the relative proportions of soluble and nonsoluble radium in river waters in the Silesia region of Poland and its vicinity. Samples were collected in May 1997 from the Vistula River at seven different locations, and from six tributaries during medium river level conditions. Samples were filtered, and separate analyses were conducted on the liquid and solid phases. Radium was separated by co-precipitation (with PbCrO (sub 4) and BaSO (sub 4) ). The thin sources obtained were analysed by alpha-spectrometer with silicon detectors, and by low-background gamma spectrometer (the recovery of radium was controlled by Ba-133 tracer). The highest activity of Ra-226 in the water samples was 334+ or -11 mBq l (super -1) , whereas the lowest result was 0+ or -1 mBq l (super -1) . These results suggest that radium is transported in soluble form (or as very tiny particles). JF - IAHS-AISH Publication AU - Pociask-Karteczka, Joanna AU - Mietelski, Jerzy Wojciech AU - Jasinska, Miroslawa AU - Krupa, Jerzy A2 - Reichard, Eric G. A2 - Hauchman, Fred S. A2 - Sanchia, Ana Maria Y1 - 2000 PY - 2000 DA - 2000 SP - 57 EP - 62 PB - International Association of Hydrological Sciences VL - 260 SN - 0144-7815, 0144-7815 KW - Vistula River KW - water quality KW - mines KW - alkaline earth metals KW - radium KW - isotopes KW - surface water KW - coal mines KW - pollution KW - Europe KW - environmental analysis KW - Ra-226 KW - Silesia KW - sedimentary rocks KW - radioactive isotopes KW - detection KW - toxicity KW - Poland KW - metals KW - coal KW - Central Europe KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51913635?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=Coal+mining+activity+and+radium+isotope+contamination+of+river+water+in+Silesia%2C+Poland&rft.au=Pociask-Karteczka%2C+Joanna%3BMietelski%2C+Jerzy+Wojciech%3BJasinska%2C+Miroslawa%3BKrupa%2C+Jerzy&rft.aulast=Pociask-Karteczka&rft.aufirst=Joanna&rft.date=2000-01-01&rft.volume=260&rft.issue=&rft.spage=57&rft.isbn=1901502112&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Second international symposium on Assessing and managing health risks from drinking water contamination; approaches and applications N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 7 N1 - Document feature - illus. incl. 2 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Central Europe; coal; coal mines; detection; environmental analysis; Europe; isotopes; metals; mines; Poland; pollution; public health; Ra-226; radioactive isotopes; radium; sedimentary rocks; Silesia; surface water; toxicity; Vistula River; water quality ER - TY - JOUR T1 - Management of groundwater supply and water quality in the Los Angeles Basin, California AN - 51913611; 2004-000269 JF - IAHS-AISH Publication AU - Reichard, Eric G AU - Crawford, Steven M AU - Land, Michael T AU - Paybins, Katherine S A2 - Reichard, Eric G. A2 - Hauchman, Fred S. A2 - Sanchia, Ana Maria Y1 - 2000 PY - 2000 DA - 2000 SP - 91 EP - 92 PB - International Association of Hydrological Sciences VL - 260 SN - 0144-7815, 0144-7815 KW - United States KW - water quality KW - Los Angeles County California KW - environmental analysis KW - remediation KW - ground water KW - aquifers KW - models KW - California KW - recharge KW - toxicity KW - Los Angeles Basin KW - risk assessment KW - water resources KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51913611?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=Management+of+groundwater+supply+and+water+quality+in+the+Los+Angeles+Basin%2C+California&rft.au=Reichard%2C+Eric+G%3BCrawford%2C+Steven+M%3BLand%2C+Michael+T%3BPaybins%2C+Katherine+S&rft.aulast=Reichard&rft.aufirst=Eric&rft.date=2000-01-01&rft.volume=260&rft.issue=&rft.spage=91&rft.isbn=1901502112&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Second international symposium on Assessing and managing health risks from drinking water contamination; approaches and applications N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - aquifers; California; environmental analysis; ground water; Los Angeles Basin; Los Angeles County California; models; public health; recharge; remediation; risk assessment; toxicity; United States; water quality; water resources ER - TY - JOUR T1 - Behaviour of contaminant plumes at the interface between the Pampeano and Puelche aquifers in the province of Buenos Aires, Argentina AN - 51913610; 2004-000267 AB - The objective of this work was to employ a numerical simulator to investigate the behaviour of contaminant plumes at the interface between the Pampeano and Puelche aquifers in the northeast of the Province of Buenos Aires. The influence of the clay layer on the concentration profiles of chloride and chromium VI was analysed. For this purpose we developed a characteristics finite element procedure to simulate contaminant transport in saturated anisotropic porous media under steady flow conditions. For the chromium simulations, adsorption effects were included in the model using a linear isotherm. JF - IAHS-AISH Publication AU - Koehn, Jacqueline AU - Kruse, Eduardo E AU - Santos, Juan E A2 - Reichard, Eric G. A2 - Hauchman, Fred S. A2 - Sanchia, Ana Maria Y1 - 2000 PY - 2000 DA - 2000 SP - 81 EP - 86 PB - International Association of Hydrological Sciences VL - 260 SN - 0144-7815, 0144-7815 KW - water quality KW - Buenos Aires Argentina KW - pollutants KW - pollution KW - simulation KW - environmental analysis KW - ground water KW - aquifers KW - models KW - South America KW - Puelche Aquifer KW - toxicity KW - Argentina KW - movement KW - Pampeano Aquifer KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51913610?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=Behaviour+of+contaminant+plumes+at+the+interface+between+the+Pampeano+and+Puelche+aquifers+in+the+province+of+Buenos+Aires%2C+Argentina&rft.au=Koehn%2C+Jacqueline%3BKruse%2C+Eduardo+E%3BSantos%2C+Juan+E&rft.aulast=Koehn&rft.aufirst=Jacqueline&rft.date=2000-01-01&rft.volume=260&rft.issue=&rft.spage=81&rft.isbn=1901502112&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Second international symposium on Assessing and managing health risks from drinking water contamination; approaches and applications N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 10 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - aquifers; Argentina; Buenos Aires Argentina; environmental analysis; ground water; models; movement; Pampeano Aquifer; pollutants; pollution; Puelche Aquifer; simulation; South America; toxicity; water quality ER - TY - JOUR T1 - Data related uncertainties in the definition of wellhead capture zones AN - 51913588; 2004-000263 AB - The Local Gradient Estimate Technique (LGET) is extended to delineation of capture zones: (a) the LGET is extended to provide a reliable test for measurement errors, and (b) the LGET is also extended to delineation of uncertainty in the geometry and orientation of a capture zone. It is demonstrated that the LGET, in combination with monitoring wells, allows elimination of major measurement errors and estimation of capture zones, including uncertainty, with better performance than that obtained using two other common approaches to capture zone delineation. JF - IAHS-AISH Publication AU - Silliman, Stephen E AU - Mantz, Gloria A2 - Reichard, Eric G. A2 - Hauchman, Fred S. A2 - Sanchia, Ana Maria Y1 - 2000 PY - 2000 DA - 2000 SP - 53 EP - 56 PB - International Association of Hydrological Sciences VL - 260 SN - 0144-7815, 0144-7815 KW - water quality KW - wellhead protection KW - monitoring KW - pollution KW - risk assessment KW - water resources KW - environmental analysis KW - ground water KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51913588?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=Data+related+uncertainties+in+the+definition+of+wellhead+capture+zones&rft.au=Silliman%2C+Stephen+E%3BMantz%2C+Gloria&rft.aulast=Silliman&rft.aufirst=Stephen&rft.date=2000-01-01&rft.volume=260&rft.issue=&rft.spage=53&rft.isbn=1901502112&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Second international symposium on Assessing and managing health risks from drinking water contamination; approaches and applications N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 3 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - environmental analysis; ground water; monitoring; pollution; risk assessment; water quality; water resources; wellhead protection ER - TY - JOUR T1 - Health risk and sources of arsenic in the potable water of a mining area AN - 51913549; 2004-000260 AB - Exploitation of ore bodies has promoted urban development near mines since ancient times. Silver, copper, lead, zinc and gold ore deposits are often accompanied by arsenic. In these areas, tailings, mine water and smelter fumes constitute potential sources of pollution to the groundwater. Oxidation of sulphide ores may release arsenic, which is then transported through aquifers. Due to its toxic properties, limits on the level of arsenic in drinking water have been established (0.01 mg 1 (super -1) WHO guideline; 0.05 mg 1 (super -1) Mexican standard). In Mexico, groundwater polluted with up to 1.0 mg 1 (super -1) of arsenic was used as a potable source in Zimapan, Hidalgo. To solve this problem several aspects had to be studied. The concentration of arsenic and the source of groundwater contamination were determined. Since no surface water bodies are located in the valley, an evaluation had to be made to assess the possibility of tapping a sufficient amount of high quality water. The investigations included sampling and chemical analyses of rocks, water and soils, as well as hydrogeological and geological studies. A water treatment procedure was tested on wells that were contaminated. Wells without arsenic were not considered since they do not produce a sufficient amount of water. JF - IAHS-AISH Publication AU - Armienta, Aurora AU - Rodriguez, Ramiro AU - Morton, Ofelia AU - Cruz, Olivia AU - Ceniceros, Nora AU - Aguayo, Alejandra A2 - Reichard, Eric G. A2 - Hauchman, Fred S. A2 - Sanchia, Ana Maria Y1 - 2000 PY - 2000 DA - 2000 SP - 9 EP - 15 PB - International Association of Hydrological Sciences VL - 260 SN - 0144-7815, 0144-7815 KW - water quality KW - mining KW - arsenic KW - Zimapan Valley KW - pollution KW - effects KW - environmental analysis KW - potability KW - ground water KW - Sierra Madre Oriental KW - Mexico KW - toxicity KW - metals KW - water treatment KW - risk assessment KW - water resources KW - tailings KW - Hidalgo Mexico KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51913549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=Health+risk+and+sources+of+arsenic+in+the+potable+water+of+a+mining+area&rft.au=Armienta%2C+Aurora%3BRodriguez%2C+Ramiro%3BMorton%2C+Ofelia%3BCruz%2C+Olivia%3BCeniceros%2C+Nora%3BAguayo%2C+Alejandra&rft.aulast=Armienta&rft.aufirst=Aurora&rft.date=2000-01-01&rft.volume=260&rft.issue=&rft.spage=9&rft.isbn=1901502112&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Second international symposium on Assessing and managing health risks from drinking water contamination; approaches and applications N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 27 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - arsenic; effects; environmental analysis; ground water; Hidalgo Mexico; metals; Mexico; mining; pollution; potability; public health; risk assessment; Sierra Madre Oriental; tailings; toxicity; water quality; water resources; water treatment; Zimapan Valley ER - TY - JOUR T1 - The role of groundwater chemistry in the transport of bacteria to water-supply wells AN - 51913281; 2004-000262 JF - IAHS-AISH Publication AU - Harvey, Ronald W AU - Metge, David W A2 - Reichard, Eric G. A2 - Hauchman, Fred S. A2 - Sanchia, Ana Maria Y1 - 2000 PY - 2000 DA - 2000 SP - 49 EP - 50 PB - International Association of Hydrological Sciences VL - 260 SN - 0144-7815, 0144-7815 KW - water quality KW - pollutants KW - injection KW - pollution KW - hydrochemistry KW - environmental analysis KW - ground water KW - toxicity KW - bacteria KW - risk assessment KW - water wells KW - water resources KW - geochemistry KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51913281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=The+role+of+groundwater+chemistry+in+the+transport+of+bacteria+to+water-supply+wells&rft.au=Harvey%2C+Ronald+W%3BMetge%2C+David+W&rft.aulast=Harvey&rft.aufirst=Ronald&rft.date=2000-01-01&rft.volume=260&rft.issue=&rft.spage=49&rft.isbn=1901502112&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Second international symposium on Assessing and managing health risks from drinking water contamination; approaches and applications N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - bacteria; environmental analysis; geochemistry; ground water; hydrochemistry; injection; pollutants; pollution; public health; risk assessment; toxicity; water quality; water resources; water wells ER - TY - JOUR T1 - Stochastic transport of reactive pollutants in groundwater; effective parameters approach AN - 51912927; 2004-000266 AB - The impact of small scale heterogeneity or spatial variability upon field-scale transport is widely recognized as a key problem in groundwater research and practice. Although initial research in this topic focused upon non-reactive solutes and variability of physical properties of the aquifer (namely, hydraulic conductivity and porosity), recent work has emphasized reactive solutes and variability of chemical properties (namely, adsorption parameters). Uncertainty about the precise values of the chemical properties of the soil will lead to uncertainties in transport calculations. These uncertainties will play a key role in the analysis of the environmental impact of reactive contaminants moving through a real porous formation. Temporal moments analysis, in addition to an effective parameters approach, is used in this paper to explain the effect of chemical heterogeneity upon the transport of reactive pollutants. JF - IAHS-AISH Publication AU - Espinoza, Carlos A2 - Reichard, Eric G. A2 - Hauchman, Fred S. A2 - Sanchia, Ana Maria Y1 - 2000 PY - 2000 DA - 2000 SP - 75 EP - 80 PB - International Association of Hydrological Sciences VL - 260 SN - 0144-7815, 0144-7815 KW - water quality KW - pollutants KW - solutes KW - pollution KW - effects KW - environmental analysis KW - ground water KW - aquifers KW - transport KW - stochastic processes KW - risk assessment KW - water resources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51912927?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=Stochastic+transport+of+reactive+pollutants+in+groundwater%3B+effective+parameters+approach&rft.au=Espinoza%2C+Carlos&rft.aulast=Espinoza&rft.aufirst=Carlos&rft.date=2000-01-01&rft.volume=260&rft.issue=&rft.spage=75&rft.isbn=1901502112&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Second international symposium on Assessing and managing health risks from drinking water contamination; approaches and applications N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 3 N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - aquifers; effects; environmental analysis; ground water; pollutants; pollution; risk assessment; solutes; stochastic processes; transport; water quality; water resources ER - TY - JOUR T1 - Use of nitrogen isotopes to determine sources of nitrate contamination in two desert basins in California AN - 51911951; 2004-000265 JF - IAHS-AISH Publication AU - Densmore, Jill N AU - Bohlke, Johnkarl F A2 - Reichard, Eric G. A2 - Hauchman, Fred S. A2 - Sanchia, Ana Maria Y1 - 2000 PY - 2000 DA - 2000 SP - 63 EP - 73 PB - International Association of Hydrological Sciences VL - 260 SN - 0144-7815, 0144-7815 KW - United States KW - water quality KW - N-15/N-14 KW - sewage KW - isotopes KW - waste water KW - pollutants KW - isotope ratios KW - pollution KW - environmental analysis KW - stable isotopes KW - nitrogen KW - ground water KW - California KW - toxicity KW - denitrification KW - Mojave Desert KW - Bicycle Basin KW - nitrate ion KW - San Bernardino County California KW - Irwin Basin KW - Fort Irwin California KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51911951?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=Use+of+nitrogen+isotopes+to+determine+sources+of+nitrate+contamination+in+two+desert+basins+in+California&rft.au=Densmore%2C+Jill+N%3BBohlke%2C+Johnkarl+F&rft.aulast=Densmore&rft.aufirst=Jill&rft.date=2000-01-01&rft.volume=260&rft.issue=&rft.spage=63&rft.isbn=1901502112&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Second international symposium on Assessing and managing health risks from drinking water contamination; approaches and applications N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 5 N1 - Document feature - illus. incl. 2 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - Bicycle Basin; California; denitrification; environmental analysis; Fort Irwin California; ground water; Irwin Basin; isotope ratios; isotopes; Mojave Desert; N-15/N-14; nitrate ion; nitrogen; pollutants; pollution; public health; San Bernardino County California; sewage; stable isotopes; toxicity; United States; waste water; water quality ER - TY - JOUR T1 - Arsenic and its impact on health AN - 51911919; 2004-000261 AB - Arsenic contamination of groundwater is increasingly recognized as a health concern. Overwithdrawal of groundwater appears to be the cause of the contamination by arsenic. The arsenic in groundwater occurs as As(III) and As(V), in varying proportions. As(III) is much more toxic than As(V). After it is ingested, most arsenic undergoes detoxification in the liver and is excreted through the kidney. The remaining arsenic is responsible for the health hazard. Dhaka Community Hospital and the School of Environmental Studies (SOES), Calcutta, jointly carried out a survey of tube-wells in 60 districts of Bangladesh, and of patients in 21 districts. So far, we have found 41 districts with wells contaminated with arsenic above the maximum permissible limit (0.05 ppm), and we have identified more than two thousand patients. The total area and population of these 41 districts are 89 186 km (super 2) and 76.9 million respectively. JF - IAHS-AISH Publication AU - Shibtosh, Roy AU - Quamruzzaman, Quazi AU - Rahman, Mahmudur AU - Chakrabarti, D AU - Dhar, Ratan AU - Goutam, Bhajan A2 - Reichard, Eric G. A2 - Hauchman, Fred S. A2 - Sanchia, Ana Maria Y1 - 2000 PY - 2000 DA - 2000 SP - 30 PB - International Association of Hydrological Sciences VL - 260 SN - 0144-7815, 0144-7815 KW - water quality KW - pollutants KW - arsenic KW - pollution KW - effects KW - environmental analysis KW - ground water KW - case studies KW - toxicity KW - Indian Peninsula KW - metals KW - Asia KW - water resources KW - Bangladesh KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51911919?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=Arsenic+and+its+impact+on+health&rft.au=Shibtosh%2C+Roy%3BQuamruzzaman%2C+Quazi%3BRahman%2C+Mahmudur%3BChakrabarti%2C+D%3BDhar%2C+Ratan%3BGoutam%2C+Bhajan&rft.aulast=Shibtosh&rft.aufirst=Roy&rft.date=2000-01-01&rft.volume=260&rft.issue=&rft.spage=30&rft.isbn=1901502112&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Second international symposium on Assessing and managing health risks from drinking water contamination; approaches and applications N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - arsenic; Asia; Bangladesh; case studies; effects; environmental analysis; ground water; Indian Peninsula; metals; pollutants; pollution; public health; toxicity; water quality; water resources ER - TY - JOUR T1 - Ground water/surface water interactions in a Great Basin wet meadow ecosystem AN - 51895368; 2004-012919 AB - Riparian corridors within upland watersheds of the Great Basin locally contain wet meadow ecosystems that support much of the region's biodiversity. Plant communities in these riparian and wet meadow ecosystems can be highly dependent on the depth to and fluctuations in the water table. Ground water and surface water are intimately linked in these environments and their interactions play a key role in maintaining riparian and wetland vegetation.Interactions between surface water and ground water flow systems were examined at the Big Creek field site, in the Toiyabe Mountains in central Nevada, which is though to be representative of wet meadow ecosystems in the area. Like many of the Great Basin wet meadows, the Big Creek site is positioned upstream of a valley constriction created by an alluvial fan. A perennial stream traverses the site and several small springs emerge and flow across the meadow which is wet during the majority of the year. The site was instrumented with 54 piezometers and 7 monitoring wells to measure water table depths and observe ground water flow patterns. Instream discharges also have been measured along several reaches of the stream.Ground water flow patterns indicate that the stream is a losing system upgradient of the site. As the stream approaches the wet meadow it becomes a gaining system. Data from nested piezometers also exhibit downward gradients in the upstream portion of the site and upward gradients in the wet meadow. Stream discharge measurements confirm the ground water data. The extent to which ground water recharge and discharge occur is directly related to local weather, that is wet versus dry seasons. Ground water flow patterns and preliminary geochemical and seismic results suggest that the ground water supplying the meadow is moving downvalley through the alluvial fill and is forced to the surface by constrictions in width and/or thickness of the alluvial aquifer. JF - Abstracts with Programs - Geological Society of America AU - Jewett, David G AU - Miller, Jerry R AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 405 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - communities KW - Basin and Range Province KW - watersheds KW - observation wells KW - ecosystems KW - vegetation KW - ground water KW - movement KW - thickness KW - springs KW - discharge KW - hydrology KW - North America KW - Plantae KW - biodiversity KW - Great Basin KW - surface water KW - measurement KW - aquifers KW - water table KW - fluctuations KW - pressuremeters KW - riparian environment KW - alluvium aquifers KW - wetlands KW - Big Creek KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51895368?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Ground+water%2Fsurface+water+interactions+in+a+Great+Basin+wet+meadow+ecosystem&rft.au=Jewett%2C+David+G%3BMiller%2C+Jerry+R%3BAnonymous&rft.aulast=Jewett&rft.aufirst=David&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=405&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alluvium aquifers; aquifers; Basin and Range Province; Big Creek; biodiversity; communities; discharge; ecosystems; fluctuations; Great Basin; ground water; hydrology; measurement; movement; North America; observation wells; Plantae; pressuremeters; riparian environment; springs; surface water; thickness; United States; vegetation; water table; watersheds; wetlands ER - TY - JOUR T1 - Challenges of restoring an environment impacted by a century of copper mining; the Copper Basin mining district, Tennessee AN - 51888552; 2004-014950 AB - The Copper Basin Mining District is located near Ducktown, in SE Tennessee. Mining of copper oxide, iron gossan, and massive sulfide ores began in 1850 and continued through 1987. The mines produced copper metal, zinc and iron concentrates, iron calcine and sulfuric acid. Early processing used an open-roasting technique that led to the loss of 50 sq. mi. of mixed hardwood-pine forest and widespread soil erosion. Reforestation efforts have decreased the extent of downstream sediment impacts. However, chemical impacts, including low pH, high metals, and lack of organic material, continue to affect aquatic, riparian, and terrestrial ecosystems. EPA Region 4 is in the early stages of addressing these impacts. Numerous circumstances conspire to produce the observed level of impact and affect the remedial actions that can be taken to restore these watersheds: 1) devegetation led to severe erosion of topsoils and wastes which were redeposited in downstream waters; 2) oxidation of the sulfide-rich ores and wastes produces acidic, metals-laden leachate; 3) the regional Precambrian metamorphic terrane provides little natural alkalinity; 4) high precipitation and humid conditions accelerate erosion, leaching and sulfide oxidation; 5) chemically reactive wastes and byproducts were placed in streambeds and atop natural springs throughout the Basin; and 6) the Basin drains to the Ocoee River and its reservoirs. Problems such as surface instability over abandoned underground workings and local areas of soil contamination can be addressed by institutional controls and removal actions. Other lingering problems are more difficult and complicate attempts to restore the Basin to a viable ecosystem. These include: modified stream channels, impaired stream substrates, degraded surface and ground water quality, instream sediments that contribute deleterious water to streams, and complete loss of a functioning aquatic/riparian ecosystem. JF - Abstracts with Programs - Geological Society of America AU - Moyer, Thomas C AU - Jourdan, Robert AU - Taylor, Matthew AU - Mozingo, Jack T, Jr AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 476 EP - 477 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - water quality KW - mining KW - terrestrial environment KW - erosion KW - watersheds KW - iron ores KW - vegetation KW - iron KW - environmental effects KW - Ducktown Tennessee KW - remediation KW - ground water KW - Polk County Tennessee KW - controls KW - mining geology KW - Tennessee KW - sediments KW - leachate KW - copper ores KW - alkalinity KW - copper oxide KW - soil erosion KW - soils KW - hydrology KW - forests KW - oxidation KW - zinc ores KW - humid environment KW - massive sulfide deposits KW - history KW - southeastern Tennessee KW - riparian environment KW - Copper Basin mining district KW - Ocoee River KW - metals KW - gossan KW - metal ores KW - massive deposits KW - leaching KW - aquatic environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51888552?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Challenges+of+restoring+an+environment+impacted+by+a+century+of+copper+mining%3B+the+Copper+Basin+mining+district%2C+Tennessee&rft.au=Moyer%2C+Thomas+C%3BJourdan%2C+Robert%3BTaylor%2C+Matthew%3BMozingo%2C+Jack+T%2C+Jr%3BAnonymous&rft.aulast=Moyer&rft.aufirst=Thomas&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=476&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkalinity; aquatic environment; controls; Copper Basin mining district; copper ores; copper oxide; Ducktown Tennessee; environmental effects; erosion; forests; gossan; ground water; history; humid environment; hydrology; iron; iron ores; leachate; leaching; massive deposits; massive sulfide deposits; metal ores; metals; mining; mining geology; Ocoee River; oxidation; Polk County Tennessee; remediation; riparian environment; sediments; soil erosion; soils; southeastern Tennessee; Tennessee; terrestrial environment; United States; vegetation; water quality; watersheds; zinc ores ER - TY - JOUR T1 - Relationship between the leaching potential of heavy metals from lead-zinc mining wastes and its mineralogy and grain size AN - 51888398; 2004-014948 AB - Leaching tests were conducted on lead-zinc mine tailings utilizing the United States Environmental Protection Agency's toxicity characteristic leaching procedure (TCLP) on a size-fractionated basis. Mineralogic properties of certain sizes of tailings were assessed by performing X-ray diffraction (XRD) analyses.Bulk mine tailings from the Kansas portion of the Tri-State mining district were size-separated by using standard procedures. The bulk samples were sieved into the following eight size fractions: +4, +8, +16, +30, +50, +100, +200, and -200. Each size fraction was subjected to the TCLP extraction procedure and the leachate extracts were chemically analyzed by inductively coupled plasma/mass spectrometry methods. Chemical results showed that levels of lead and zinc in leachate extracts increased with decreasing grain diameter. Lead from one tailing sample was found to increase from a leachate concentration of 0.45 ppm in the +4 size fraction (>4.76 mm) up to 118 ppm in the -200 size fraction (0.297 mm) and -200 (<0.075 mm) size fractions. Plans for the remediation or restoration of mined lands should include a detailed assessment of fine-grained wastes. The finer fractions exhibit a significant leaching potential and are readily distributed over large areas by wind and water processes. JF - Abstracts with Programs - Geological Society of America AU - Drake, K David AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 476 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - sorosilicates KW - silicates KW - X-ray diffraction data KW - silica minerals KW - government agencies KW - mass spectra KW - remediation KW - dolomite KW - spatial distribution KW - ore minerals KW - mineral composition KW - toxicity KW - Tri-State mining district KW - orthosilicates KW - leachate KW - framework silicates KW - spectra KW - heavy metals KW - hemimorphite KW - grain size KW - fines KW - U. S. Environmental Protection Agency KW - sphalerite KW - pollution KW - properties KW - calcite KW - galena KW - Kansas KW - metal ores KW - quartz KW - testing KW - leaching KW - tailings KW - sulfides KW - lead-zinc deposits KW - carbonates KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51888398?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Relationship+between+the+leaching+potential+of+heavy+metals+from+lead-zinc+mining+wastes+and+its+mineralogy+and+grain+size&rft.au=Drake%2C+K+David%3BAnonymous&rft.aulast=Drake&rft.aufirst=K&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=476&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - calcite; carbonates; dolomite; fines; framework silicates; galena; government agencies; grain size; heavy metals; hemimorphite; Kansas; leachate; leaching; lead-zinc deposits; mass spectra; metal ores; mineral composition; ore minerals; orthosilicates; pollution; properties; quartz; remediation; silica minerals; silicates; sorosilicates; spatial distribution; spectra; sphalerite; sulfides; tailings; testing; toxicity; Tri-State mining district; U. S. Environmental Protection Agency; United States; X-ray diffraction data ER - TY - JOUR T1 - Vertical geochemical profiling for arsenic in groundwater AN - 51881049; 2004-018491 AB - Arsenic has been detected at levels of 20 to 30 ppb for decades in two water-supply wells in central Massachusetts. Sediments in a nearby pond are contaminated with a suite of metals, including arsenic, from tannery wastes. Historical pesticide use at local orchards is another potential source. The site is underlain by Paleozoic metasedimentary sequences, which have been implicated regionally as a source of arsenic in bedrock wells. The initial investigation utilized monitoring wells screened at the producing horizon in the glacial-outwash aquifer. Arsenic was detected only in the water-supply wells. Subsequently, new wells were installed and vertical profiles of the groundwater chemistry were obtained. Filtered samples were taken at five-foot intervals through a drive point advanced in front of the well casing. Results show that dissolved iron and arsenic are strongly correlated with oxidation-reduction potential (ORP) in the upper aquifer. Aqueous concentrations increase with depth, to a maximum of 189 ppb arsenic and 21,900 ppb iron (and corresponding ORP of -145 mV), and then decrease sharply while ORP increases. At the depth of the screened interval for the production wells (40 60 ft bgs), ORP ranges from 53 to 107 mV, iron from 80 to 290 ppb, and arsenic is below the detection limit of 20 ppb. Water from bedrock wells is reducing and contains approximately 100 ppb arsenic, but little dissolved iron. Results of microscopic and microprobe analyses of thin sections suggest that weathering of arsenic-bearing pyrite is likely the source of arsenic in bedrock groundwater. Arsenic around 100 ppb was also detected in pore water from pond sediments, but no other indicators support transport from the pond to the production wells. Data from vertical profile sampling is consistent with reductive dissolution of iron oxide coatings on the sand/gravel aquifer matrix, and release of sorbed arsenic. Neither the pond sediment nor the bedrock water appears to contribute arsenic to the water-supply wells. Rather, a small volumetric contribution to the pumping wells from the shallow, high-arsenic, low-ORP zone may explain the observed water chemistry. JF - Abstracts with Programs - Geological Society of America AU - Brandon, William AU - Hon, Rudolph AU - McTigue, David AU - Stein, Carol AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 521 EP - 522 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - sorption KW - pumping KW - thin sections KW - iron KW - ground water KW - transport KW - Massachusetts KW - sediments KW - horizons KW - geochemistry KW - bedrock KW - water supply KW - overburden KW - arsenic KW - pollution KW - hydrochemistry KW - weathering KW - aquifers KW - detection KW - dissolved materials KW - metals KW - pesticides KW - water wells KW - pore water KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51881049?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Vertical+geochemical+profiling+for+arsenic+in+groundwater&rft.au=Brandon%2C+William%3BHon%2C+Rudolph%3BMcTigue%2C+David%3BStein%2C+Carol%3BAnonymous&rft.aulast=Brandon&rft.aufirst=William&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=521&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; arsenic; bedrock; detection; dissolved materials; geochemistry; ground water; horizons; hydrochemistry; iron; Massachusetts; metals; overburden; pesticides; pollution; pore water; pumping; sediments; sorption; thin sections; transport; United States; water supply; water wells; weathering ER - TY - JOUR T1 - Using imaging spectroscopy to map acidic mine waste AN - 51840477; 2004-044899 JF - Environmental Science & Technology, ES & T AU - Swayze, Gregg A AU - Smith, Kathleen S AU - Clark, Roger N AU - Sutley, Stephen J AU - Pearson, Ronald M AU - Vance, J Sam AU - Hageman, Philip L AU - Briggs, Paul H AU - Meier, Allen L AU - Singleton, Michael J AU - Roth, Shelly Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 47 EP - 54 PB - American Chemical Society, Washington, DC VL - 34 IS - 1 SN - 0013-936X, 0013-936X KW - United States KW - imagery KW - goethite KW - Mosquito Range KW - drinking water KW - iron KW - ground water KW - infrared methods KW - AVIRIS KW - California Gulch Site KW - oxides KW - leachate KW - pH KW - Superfund sites KW - Leadville Colorado KW - mines KW - concentration KW - acid mine drainage KW - waste rock KW - oxidation KW - drainage KW - surface water KW - geophysical methods KW - acid rock drainage KW - pollution KW - ferrous iron KW - Lake County Colorado KW - metals KW - acidification KW - pyrite KW - waste disposal KW - Colorado KW - tailings KW - sulfides KW - spectroscopy KW - remote sensing KW - airborne methods KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51840477?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Using+imaging+spectroscopy+to+map+acidic+mine+waste&rft.au=Swayze%2C+Gregg+A%3BSmith%2C+Kathleen+S%3BClark%2C+Roger+N%3BSutley%2C+Stephen+J%3BPearson%2C+Ronald+M%3BVance%2C+J+Sam%3BHageman%2C+Philip+L%3BBriggs%2C+Paul+H%3BMeier%2C+Allen+L%3BSingleton%2C+Michael+J%3BRoth%2C+Shelly&rft.aulast=Swayze&rft.aufirst=Gregg&rft.date=2000-01-01&rft.volume=34&rft.issue=1&rft.spage=47&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 32 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - acid mine drainage; acid rock drainage; acidification; airborne methods; AVIRIS; California Gulch Site; Colorado; concentration; drainage; drinking water; ferrous iron; geophysical methods; goethite; ground water; imagery; infrared methods; iron; Lake County Colorado; leachate; Leadville Colorado; metals; mines; Mosquito Range; oxidation; oxides; pH; pollution; pyrite; remote sensing; spectroscopy; sulfides; Superfund sites; surface water; tailings; United States; waste disposal; waste rock ER - TY - JOUR T1 - Metals-fixation demonstrations on the Coeur d'Alene River, Idaho; final results AN - 51433099; 2007-055767 JF - Proceedings of the ... International Conference on Tailings and Mine Waste AU - Williams, B C AU - McGeehan, S L AU - Ceto, N AU - Nelson, John D Y1 - 2000 PY - 2000 DA - 2000 SP - 297 EP - 306 PB - A.A. Balkema, Rotterdam VL - 7 KW - United States KW - apatite KW - zinc KW - mines KW - Idaho KW - fixation KW - pollutants KW - pollution KW - lead KW - Coeur d'Alene River KW - phosphates KW - ground water KW - metals KW - industrial waste KW - cadmium KW - waste disposal KW - leaching KW - discharge KW - tailings KW - heavy metals KW - abandoned mines KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51433099?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+...+International+Conference+on+Tailings+and+Mine+Waste&rft.atitle=Metals-fixation+demonstrations+on+the+Coeur+d%27Alene+River%2C+Idaho%3B+final+results&rft.au=Williams%2C+B+C%3BMcGeehan%2C+S+L%3BCeto%2C+N%3BNelson%2C+John+D&rft.aulast=Williams&rft.aufirst=B&rft.date=2000-01-01&rft.volume=7&rft.issue=&rft.spage=297&rft.isbn=9058091260&rft.btitle=&rft.title=Proceedings+of+the+...+International+Conference+on+Tailings+and+Mine+Waste&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventh international conference on Tailings and mine waste '00 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 8 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #04690 N1 - SubjectsTermNotLitGenreText - abandoned mines; apatite; cadmium; Coeur d'Alene River; discharge; fixation; ground water; heavy metals; Idaho; industrial waste; leaching; lead; metals; mines; phosphates; pollutants; pollution; tailings; United States; waste disposal; zinc ER - TY - JOUR T1 - Hyperspectral mapping of abandoned mine lands, drainage, and watershed impacts in Utah AN - 51432980; 2007-055779 JF - Proceedings of the ... International Conference on Tailings and Mine Waste AU - Henderson, F B, III AU - Selle, A AU - Wangerud, K AU - Farrand, William H AU - Hauff, P L AU - Peters, D C AU - Stewart, R AU - Nelson, John D Y1 - 2000 PY - 2000 DA - 2000 SP - 441 EP - 442 PB - A.A. Balkema, Rotterdam VL - 7 KW - United States KW - hydrology KW - mines KW - cartography KW - geophysical methods KW - watersheds KW - hyperspectral methods KW - environmental analysis KW - mine drainage KW - Utah KW - abandoned mines KW - remote sensing KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51432980?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+...+International+Conference+on+Tailings+and+Mine+Waste&rft.atitle=Hyperspectral+mapping+of+abandoned+mine+lands%2C+drainage%2C+and+watershed+impacts+in+Utah&rft.au=Henderson%2C+F+B%2C+III%3BSelle%2C+A%3BWangerud%2C+K%3BFarrand%2C+William+H%3BHauff%2C+P+L%3BPeters%2C+D+C%3BStewart%2C+R%3BNelson%2C+John+D&rft.aulast=Henderson&rft.aufirst=F&rft.date=2000-01-01&rft.volume=7&rft.issue=&rft.spage=441&rft.isbn=9058091260&rft.btitle=&rft.title=Proceedings+of+the+...+International+Conference+on+Tailings+and+Mine+Waste&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventh international conference on Tailings and mine waste '00 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 2 N1 - Last updated - 2012-06-07 N1 - CODEN - #04690 N1 - SubjectsTermNotLitGenreText - abandoned mines; cartography; environmental analysis; geophysical methods; hydrology; hyperspectral methods; mine drainage; mines; remote sensing; United States; Utah; watersheds ER - TY - JOUR T1 - Weathering of light nonaqueous-phase liquid hydrocarbons at some JP-4 fuel release sites AN - 51388922; 2007-087246 AB - A fuel weathering study was conducted for database entries to estimate natural LNAPL weathering and source-term reduction rates for use in natural attenuation models. A range of BTEX weathering rates from mobile LNAPL plumes at eight field sites with known release dates was documented. Free-phase fuel BTEX weathering rates varied among sites and were influenced by many factors. First-order weathering rate for five JP-4 fuel sites was 16%/year. Benzene and toluene exhibited higher weathering rates than ethylbenzene and xylene, as expected, because of higher water solubility. The primary weathering mechanism of mobile LNAPL was dissolution. Meaningful determination of mobile LNAPL weathering rates for BTEX in gasoline was difficult because of the large ranges of initial BTEX values. JF - Annual International Petroleum Environmental Conference AU - Kampbell, Donald H AU - Snyder, C B AU - Downey, D C AU - Hansen, J E A2 - Sublette, Kerry L. Y1 - 2000 PY - 2000 DA - 2000 SP - 845 EP - 851 PB - Integrated Petroleum Environmental Consortium VL - 7 KW - soils KW - biodegradation KW - pollutants KW - gas chromatograms KW - pollution KW - mass spectra KW - light nonaqueous phase liquids KW - petroleum products KW - BTEX KW - benzene KW - weathering KW - ground water KW - nonaqueous phase liquids KW - models KW - ethylbenzene KW - organic compounds KW - soil pollution KW - natural attenuation KW - hydrocarbons KW - xylene KW - spectra KW - water pollution KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51388922?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annual+International+Petroleum+Environmental+Conference&rft.atitle=Weathering+of+light+nonaqueous-phase+liquid+hydrocarbons+at+some+JP-4+fuel+release+sites&rft.au=Kampbell%2C+Donald+H%3BSnyder%2C+C+B%3BDowney%2C+D+C%3BHansen%2C+J+E&rft.aulast=Kampbell&rft.aufirst=Donald&rft.date=2000-01-01&rft.volume=7&rft.issue=&rft.spage=845&rft.isbn=&rft.btitle=&rft.title=Annual+International+Petroleum+Environmental+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 7th international petroleum environmental conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 4 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #06796 N1 - SubjectsTermNotLitGenreText - aromatic hydrocarbons; benzene; biodegradation; BTEX; ethylbenzene; gas chromatograms; ground water; hydrocarbons; light nonaqueous phase liquids; mass spectra; models; natural attenuation; nonaqueous phase liquids; organic compounds; petroleum products; pollutants; pollution; soil pollution; soils; spectra; water pollution; weathering; xylene ER - TY - JOUR T1 - Ground water supplied water systems; by the numbers AN - 51190403; 2001-050322 JF - Ground Water Monitoring & Remediation AU - Job, Charles Y1 - 2000 PY - 2000 DA - 2000 SP - 48 EP - 48, 50 PB - Ground Water Publishing Co., Dublin, OH VL - 20 IS - 4 SN - 1069-3629, 1069-3629 KW - United States KW - water quality KW - concentration KW - water supply KW - monitoring KW - isotopes KW - pollutants KW - regulations KW - pollution KW - suspended materials KW - standardization KW - drinking water KW - ground water KW - controls KW - volatiles KW - organic compounds KW - radioactive isotopes KW - bacteria KW - volatile organic compounds KW - turbidity KW - water resources KW - nitrite ion KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51190403?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water+Monitoring+%26+Remediation&rft.atitle=Ground+water+supplied+water+systems%3B+by+the+numbers&rft.au=Job%2C+Charles&rft.aulast=Job&rft.aufirst=Charles&rft.date=2000-01-01&rft.volume=20&rft.issue=4&rft.spage=48&rft.isbn=&rft.btitle=&rft.title=Ground+Water+Monitoring+%26+Remediation&rft.issn=10693629&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6592 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - OH N1 - Document feature - 2 tables N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - bacteria; concentration; controls; drinking water; ground water; isotopes; monitoring; nitrite ion; organic compounds; pollutants; pollution; radioactive isotopes; regulations; standardization; suspended materials; turbidity; United States; volatile organic compounds; volatiles; water quality; water resources; water supply ER - TY - JOUR T1 - Location and characterization of subsurface anomalies using a soil conductivity probe AN - 51172635; 2002-047092 JF - Ground Water Monitoring & Remediation AU - Beck, Frank P, Jr AU - Clark, Patrick J AU - Puls, Robert W Y1 - 2000 PY - 2000 DA - 2000 SP - 55 EP - 59 PB - Ground Water Publishing Co., Dublin, OH VL - 20 IS - 2 SN - 1069-3629, 1069-3629 KW - soils KW - concentration KW - electrical conductivity KW - monitoring KW - contaminant plumes KW - matrix KW - geophysical methods KW - electrical methods KW - pollution KW - techniques KW - measurement KW - physical properties KW - detection KW - electrical anomalies KW - saturation KW - sediments KW - waste disposal KW - permeability KW - instruments KW - disposal barriers KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51172635?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water+Monitoring+%26+Remediation&rft.atitle=Location+and+characterization+of+subsurface+anomalies+using+a+soil+conductivity+probe&rft.au=Beck%2C+Frank+P%2C+Jr%3BClark%2C+Patrick+J%3BPuls%2C+Robert+W&rft.aulast=Beck&rft.aufirst=Frank&rft.date=2000-01-01&rft.volume=20&rft.issue=2&rft.spage=55&rft.isbn=&rft.btitle=&rft.title=Ground+Water+Monitoring+%26+Remediation&rft.issn=10693629&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6592 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 7 N1 - PubXState - OH N1 - Document feature - illus. N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - concentration; contaminant plumes; detection; disposal barriers; electrical anomalies; electrical conductivity; electrical methods; geophysical methods; instruments; matrix; measurement; monitoring; permeability; physical properties; pollution; saturation; sediments; soils; techniques; waste disposal ER - TY - JOUR T1 - EPA's ground water report to Congress under SDWA Section 1429; a summary AN - 51169917; 2002-047098 JF - Ground Water Monitoring & Remediation AU - Coutlakis, Denise Y1 - 2000 PY - 2000 DA - 2000 SP - 37 EP - 40 PB - Ground Water Publishing Co., Dublin, OH VL - 20 IS - 2 SN - 1069-3629, 1069-3629 KW - United States KW - protection KW - water quality KW - programs KW - monitoring KW - regulations KW - legislation KW - government agencies KW - water management KW - U. S. Environmental Protection Agency KW - decision-making KW - Safe Drinking Water Act KW - drinking water KW - ground water KW - aquifers KW - Clean Water Act KW - water resources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51169917?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water+Monitoring+%26+Remediation&rft.atitle=EPA%27s+ground+water+report+to+Congress+under+SDWA+Section+1429%3B+a+summary&rft.au=Coutlakis%2C+Denise&rft.aulast=Coutlakis&rft.aufirst=Denise&rft.date=2000-01-01&rft.volume=20&rft.issue=2&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Ground+Water+Monitoring+%26+Remediation&rft.issn=10693629&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6592 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - OH N1 - Last updated - 2016-09-16 N1 - SubjectsTermNotLitGenreText - aquifers; Clean Water Act; decision-making; drinking water; government agencies; ground water; legislation; monitoring; programs; protection; regulations; Safe Drinking Water Act; U. S. Environmental Protection Agency; United States; water management; water quality; water resources ER - TY - JOUR T1 - Hydrogeology of the Galena-Platteville aquifer in north-central Illinois AN - 51168435; 2003-066031 AB - Geophysical logging was essential for accurate hydrogeologic characterization of the dolomitic Galena-Platteville aquifer at four Superfund sites in north-central Illinois. Logging primarily included natural-gamma, acoustic-televiewer, three-arm caliper, and heat-pulse flowmeter logs. Lithologic and natural-gamma data indicate the altitude of the base of the Platteville Group in north-central Illinois decreases to the northeast, resulting in an increased thickness of the aquifer. Acoustic-televiewer data combined with fracture surveys indicate that the predominate orientation of the inclined fractures in the aquifer is about N 60 degrees W. Lithologic and geophysical data indicate that subhorizontal fractures often are associated with certain stratigraphic horizons and with a weathering horizon in the uppermost 10 to 20 feet of the aquifer. Aquifer-test data, in combination with lithologic and geophysical data, indicate horizontal hydraulic conductivities are higher in bedrock valleys than at bedrock ridges and tend to be higher in the Grand Detour Formation of the Platteville Group than in the other formations that compose the aquifer. Conductivity values also are high in the uppermost 10 to 20 feet of the Galena-Platteville aquifer wherever the aquifer is overlain by saturated, unconsolidated deposits. The degree of continuity of the permeable features is scale dependent, but some of these features can be continuous over thousands of feet in parts of north-central Illinois. JF - International Symposium on Borehole Geophysics for Minerals, Geotechnical, and Groundwater Applications AU - Kay, Robert T AU - Mills, Patrick C AU - Ursic, James R AU - Yeskis, Douglas J AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 293 EP - 302 PB - Minerals and Geotechnical Logging Society VL - 7 SN - 1046-0217, 1046-0217 KW - United States KW - caliper logging KW - Middle Ordovician KW - well-logging KW - dolostone KW - radioactivity methods KW - ground water KW - Ordovician KW - sedimentary rocks KW - Galena-Platteville Aquifer KW - gamma-gamma methods KW - temperature logging KW - gamma-ray methods KW - Illinois KW - Paleozoic KW - Winnebago County Illinois KW - geophysical methods KW - Grand Detour Formation KW - Boone County Illinois KW - borehole televiewers KW - aquifers KW - Platteville Formation KW - acoustical logging KW - Ogle County Illinois KW - north-central Illinois KW - hydraulic conductivity KW - carbonate rocks KW - Galena Dolomite KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51168435?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Symposium+on+Borehole+Geophysics+for+Minerals%2C+Geotechnical%2C+and+Groundwater+Applications&rft.atitle=Hydrogeology+of+the+Galena-Platteville+aquifer+in+north-central+Illinois&rft.au=Kay%2C+Robert+T%3BMills%2C+Patrick+C%3BUrsic%2C+James+R%3BYeskis%2C+Douglas+J%3BAnonymous&rft.aulast=Kay&rft.aufirst=Robert&rft.date=2000-01-01&rft.volume=7&rft.issue=&rft.spage=293&rft.isbn=&rft.btitle=&rft.title=International+Symposium+on+Borehole+Geophysics+for+Minerals%2C+Geotechnical%2C+and+Groundwater+Applications&rft.issn=10460217&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventh international symposium on Borehole geophysics for minerals, geotechnical, and groundwater applications N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 11 N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - acoustical logging; aquifers; Boone County Illinois; borehole televiewers; caliper logging; carbonate rocks; dolostone; Galena Dolomite; Galena-Platteville Aquifer; gamma-gamma methods; gamma-ray methods; geophysical methods; Grand Detour Formation; ground water; hydraulic conductivity; Illinois; Middle Ordovician; north-central Illinois; Ogle County Illinois; Ordovician; Paleozoic; Platteville Formation; radioactivity methods; sedimentary rocks; temperature logging; United States; well-logging; Winnebago County Illinois ER - TY - JOUR T1 - Borehole logging at Superfund hazardous waste sites current applications and future directions AN - 51167714; 2003-066028 JF - International Symposium on Borehole Geophysics for Minerals, Geotechnical, and Groundwater Applications AU - Ursic, Jim AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 245 EP - 264 PB - Minerals and Geotechnical Logging Society VL - 7 SN - 1046-0217, 1046-0217 KW - United States KW - soils KW - hazardous waste KW - Marion County Illinois KW - Illinois KW - well-logging KW - pollution KW - Keyesport Illinois KW - ground water KW - mitigation KW - boreholes KW - transport KW - planning KW - applications KW - waste disposal KW - Superfund sites KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51167714?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Symposium+on+Borehole+Geophysics+for+Minerals%2C+Geotechnical%2C+and+Groundwater+Applications&rft.atitle=Borehole+logging+at+Superfund+hazardous+waste+sites+current+applications+and+future+directions&rft.au=Ursic%2C+Jim%3BAnonymous&rft.aulast=Ursic&rft.aufirst=Jim&rft.date=2000-01-01&rft.volume=7&rft.issue=&rft.spage=245&rft.isbn=&rft.btitle=&rft.title=International+Symposium+on+Borehole+Geophysics+for+Minerals%2C+Geotechnical%2C+and+Groundwater+Applications&rft.issn=10460217&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventh international symposium on Borehole geophysics for minerals, geotechnical, and groundwater applications N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 6 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - applications; boreholes; ground water; hazardous waste; Illinois; Keyesport Illinois; Marion County Illinois; mitigation; planning; pollution; soils; Superfund sites; transport; United States; waste disposal; well-logging ER - TY - JOUR T1 - Mapping of a hydrocarbon plume and the geometry of an abandoned petroleum storage reservoir AN - 50917094; 2000-046864 AB - Geophysical data were collected over an abandoned petroleum storage reservoir in Norwalk, California. The storage tank is a bowl-shaped structure that is approximately 600 feet in diameter. The walls of the structure are approximately 2 to 8 feet below the surface and achieve a maximum depth of 25 feet. The reservoir was used as a storage facility in the 1920s and has since been back filled. The location of the reservoir, the continuity of its walls, and the locations of possible concentrations of hydrocarbons within and outside the reservoir were the objectives of the geophysical survey. Geophysical methods used included electromagnetic terrain conductivity, and magnetics. Positioning was obtained using differential GPS. Terrain conductivity highs not associated with in-phase and magnetic anomalies were interpreted as possible concentrations of hydrocarbons. Magnetics and electromagnetics were used to map the perimeter of the reservoir and locate any possible breaches in the wall of the structure. Magnetic data were collected remotely with GPS positioning. A test in which magnetic field data were collected continuously (5Hz) and transmitted to a remote data acquisition system, compared favorably to data collected in a more traditional discrete mode. Magnetic data were modeled at locations along the perimeter of the reservoir to estimate the depth to the top of the structure's wall, using electromagnetic in-phase data for tank edge control. JF - Proceedings of SAGEEP AU - Rogers, Noel T AU - Sandberg, Stewart K AU - Corso, William AU - Newhart, Gary AU - Powell, Greg A2 - Powers, Michael H. A2 - Ibrahim, Abou-Bakr A2 - Cramer, Lynn Y1 - 2000 PY - 2000 DA - 2000 SP - 877 EP - 886 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 2000 KW - United States KW - Los Angeles County California KW - Global Positioning System KW - reservoirs KW - contaminant plumes KW - cartography KW - data acquisition KW - geophysical methods KW - data processing KW - pollution KW - magnetic methods KW - magnetic anomalies KW - magnetometers KW - Norwalk California KW - models KW - California KW - organic compounds KW - conductivity KW - hydrocarbons KW - oil storage KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50917094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+SAGEEP&rft.atitle=Mapping+of+a+hydrocarbon+plume+and+the+geometry+of+an+abandoned+petroleum+storage+reservoir&rft.au=Rogers%2C+Noel+T%3BSandberg%2C+Stewart+K%3BCorso%2C+William%3BNewhart%2C+Gary%3BPowell%2C+Greg&rft.aulast=Rogers&rft.aufirst=Noel&rft.date=2000-01-01&rft.volume=2000&rft.issue=&rft.spage=877&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+SAGEEP&rft.issn=1554-8015&rft_id=info:doi/ L2 - http://scitation.aip.org/sageep/ LA - English DB - GeoRef N1 - Conference title - Symposium on the Application of geophysics to engineering and environmental problems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 2 N1 - PubXState - CO N1 - Document feature - illus. incl. sects., 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - California; cartography; conductivity; contaminant plumes; data acquisition; data processing; geophysical methods; Global Positioning System; hydrocarbons; Los Angeles County California; magnetic anomalies; magnetic methods; magnetometers; models; Norwalk California; oil storage; organic compounds; pollution; reservoirs; United States ER - TY - JOUR T1 - Significance of crossed-dipole antennas for high noise environments AN - 50909434; 2000-046811 AB - Crossed-dipole antennas can be used to reduce clutter and improve the signal-to-noise ratio of ground penetrating radar (GPR) surveys, depending upon field conditions and the targets of interest. The crossed-dipole antenna consists of transmit and receive antennas oriented orthogonal to each other, and is sensitive to field components oriented parallel to the long axis of the receive antenna. These cross-polarized components can be introduced by scattering from subsurface targets or may be composed of scattered cross-polarized components present in the field incident on the target. The physical shape and composition of targets will influence the polarization of the scattered field, and this enables cross-pole and co-pole antenna configurations to discriminate between different classes of targets for clutter removal. The crossed-dipole antenna configuration also improves isolation of the receive antenna from the direct arrival of the transmit antenna. The improved isolation and ability to discriminate between different targets can therefore result in an improved signal-to-noise ratio. JF - Proceedings of SAGEEP AU - Radzevicius, Stanley J AU - Daniels, Jeffrey J AU - Guy, Erich D AU - Vendl, Mark A A2 - Powers, Michael H. A2 - Ibrahim, Abou-Bakr A2 - Cramer, Lynn Y1 - 2000 PY - 2000 DA - 2000 SP - 407 EP - 413 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 2000 KW - soils KW - clay KW - geophysical surveys KW - clastic sediments KW - ground-penetrating radar KW - geophysical methods KW - radar methods KW - crossed-dipole antennas KW - ground water KW - sediments KW - electromagnetic methods KW - surveys KW - signal-to-noise ratio KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50909434?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+SAGEEP&rft.atitle=Significance+of+crossed-dipole+antennas+for+high+noise+environments&rft.au=Radzevicius%2C+Stanley+J%3BDaniels%2C+Jeffrey+J%3BGuy%2C+Erich+D%3BVendl%2C+Mark+A&rft.aulast=Radzevicius&rft.aufirst=Stanley&rft.date=2000-01-01&rft.volume=2000&rft.issue=&rft.spage=407&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+SAGEEP&rft.issn=1554-8015&rft_id=info:doi/ L2 - http://scitation.aip.org/sageep/ LA - English DB - GeoRef N1 - Conference title - Symposium on the Application of geophysics to engineering and environmental problems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 11 N1 - PubXState - CO N1 - Document feature - illus. incl. sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - clastic sediments; clay; crossed-dipole antennas; electromagnetic methods; geophysical methods; geophysical surveys; ground water; ground-penetrating radar; radar methods; sediments; signal-to-noise ratio; soils; surveys ER - TY - JOUR T1 - Environmental geophysics at the U. S. Environmental Protection Agency AN - 50908438; 2000-046776 JF - Proceedings of SAGEEP AU - Vendl, Mark A A2 - Powers, Michael H. A2 - Ibrahim, Abou-Bakr A2 - Cramer, Lynn Y1 - 2000 PY - 2000 DA - 2000 SP - 111 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 2000 KW - United States KW - geophysical surveys KW - cartography KW - Superfund KW - ground-penetrating radar KW - data acquisition KW - creosote KW - government agencies KW - data processing KW - U. S. Environmental Protection Agency KW - radar methods KW - education KW - research KW - environmental analysis KW - case studies KW - New York KW - Love Canal New York KW - boreholes KW - surveys KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50908438?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+SAGEEP&rft.atitle=Environmental+geophysics+at+the+U.+S.+Environmental+Protection+Agency&rft.au=Vendl%2C+Mark+A&rft.aulast=Vendl&rft.aufirst=Mark&rft.date=2000-01-01&rft.volume=2000&rft.issue=&rft.spage=111&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+SAGEEP&rft.issn=1554-8015&rft_id=info:doi/ L2 - http://scitation.aip.org/sageep/ LA - English DB - GeoRef N1 - Conference title - Symposium on the Application of geophysics to engineering and environmental problems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - boreholes; cartography; case studies; creosote; data acquisition; data processing; education; environmental analysis; geophysical surveys; government agencies; ground-penetrating radar; Love Canal New York; New York; radar methods; research; Superfund; surveys; U. S. Environmental Protection Agency; United States ER - TY - JOUR T1 - Effects of channel morphology of evaporative heat loss from arid-land streams AN - 50898328; 2003-066033 AB - Stream evaporation was studied along the Middle Fork of the John Day River in northeastern Oregon during the summer of 1998. Over a 3-4 day period, evaporation rates and meteorological data were acquired at a given site; a total of nine sites were sequentially instrumented in this manner. Stream channel characteristics were analyzed to evaluate potential effects on stream evaporation rates. The alignment of the stream channel with respect to wind direction, the degree of stream channel incision, and the steepness of streambanks on the windward side of the channel were found to influence the movement of wind at the stream surface, thereby affecting evaporative heat loss. JF - Technical Publication Series - American Water Resources Association AU - Benner, David A AU - Beschta, Robert L A2 - Wigington, Parker J., Jr. A2 - Beschta, Robert L. Y1 - 2000 PY - 2000 DA - 2000 SP - 47 EP - 52 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 00-2 SN - 0731-9789, 0731-9789 KW - United States KW - Chordata KW - channels KW - ecosystems KW - energy balance KW - northeastern Oregon KW - Pisces KW - Oregon KW - evaporation KW - riparian environment KW - geomorphologic effects KW - streams KW - ecology KW - Vertebrata KW - Middle Fork River KW - John Day River KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50898328?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=Effects+of+channel+morphology+of+evaporative+heat+loss+from+arid-land+streams&rft.au=Benner%2C+David+A%3BBeschta%2C+Robert+L&rft.aulast=Benner&rft.aufirst=David&rft.date=2000-01-01&rft.volume=00-2&rft.issue=&rft.spage=47&rft.isbn=1882132513&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 2000 summer speciality conference; Riparian geology and management in multi-land use watersheds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 10 N1 - PubXState - MD N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - channels; Chordata; ecology; ecosystems; energy balance; evaporation; geomorphologic effects; John Day River; Middle Fork River; northeastern Oregon; Oregon; Pisces; riparian environment; streams; United States; Vertebrata ER - TY - JOUR T1 - Land-use effects on suspended sediment in Puget Lowland salmonid streams AN - 50897506; 2003-066041 JF - Technical Publication Series - American Water Resources Association AU - Packman, James J AU - Bolton, Susan M A2 - Wigington, Parker J., Jr. A2 - Beschta, Robert L. Y1 - 2000 PY - 2000 DA - 2000 SP - 589 EP - 591 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 00-2 SN - 0731-9789, 0731-9789 KW - United States KW - soils KW - Chordata KW - Washington KW - degradation KW - stream sediments KW - agriculture KW - suspended materials KW - ecosystems KW - urbanization KW - Pisces KW - Puget Lowland KW - sampling KW - sediments KW - streams KW - ecology KW - Vertebrata KW - fluvial environment KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50897506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=Land-use+effects+on+suspended+sediment+in+Puget+Lowland+salmonid+streams&rft.au=Packman%2C+James+J%3BBolton%2C+Susan+M&rft.aulast=Packman&rft.aufirst=James&rft.date=2000-01-01&rft.volume=00-2&rft.issue=&rft.spage=589&rft.isbn=1882132513&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 2000 summer speciality conference; Riparian geology and management in multi-land use watersheds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 22 N1 - PubXState - MD N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - agriculture; Chordata; degradation; ecology; ecosystems; fluvial environment; land use; Pisces; Puget Lowland; sampling; sediments; soils; stream sediments; streams; suspended materials; United States; urbanization; Vertebrata; Washington ER - TY - JOUR T1 - Channel maintenance flows in the upper Klamath Basin, Oregon AN - 50896347; 2003-066034 AB - The U.S. Department of Agriculture, Forest Service has filed channel maintenance instream flow water right claims for streams on National Forest lands within the Upper Klamath Basin, Oregon. Claims were filed at 31 sites under the 1897 Organic Act and represent an estimate of the minimum flows necessary to maintain stream channels over time. Data on stream hydrology, the composition of bed material, bedload transport over a range of flows, and channel characteristics were collected. These data were used to formulate an instream flow claim based on the ability of the stream to transport the larger framework particles, which, in part, compose the streambed, and thereby maintain the channel. Channel maintenance flows begin when a relatively small but measurable portion of the bedload, as determined by a bedload transport model, consists of the framework component of the bed material. Channel maintenance instream flows are initiated during relatively high flow events, and include the range of high but not extreme discharges that are most effective at transporting bedload sediment and thereby maintaining channel capacity. This bedload-based method for quantification of channel maintenance flow claims can be easily adapted for use with a wide variety of alluvial streams and conditions. JF - Technical Publication Series - American Water Resources Association AU - McNamara, Michael L AU - Klingeman, Peter C AU - Bakke, Paul D AU - Sullivan, Robert J A2 - Wigington, Parker J., Jr. A2 - Beschta, Robert L. Y1 - 2000 PY - 2000 DA - 2000 SP - 53 EP - 58 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 00-2 SN - 0731-9789, 0731-9789 KW - United States KW - processes KW - hydrology KW - bedload KW - sediment transport KW - sedimentation KW - water management KW - channels KW - Oregon KW - streamflow KW - runoff KW - Klamath Basin KW - fluvial features KW - geomorphology KW - water resources KW - 23:Geomorphology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50896347?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=Channel+maintenance+flows+in+the+upper+Klamath+Basin%2C+Oregon&rft.au=McNamara%2C+Michael+L%3BKlingeman%2C+Peter+C%3BBakke%2C+Paul+D%3BSullivan%2C+Robert+J&rft.aulast=McNamara&rft.aufirst=Michael&rft.date=2000-01-01&rft.volume=00-2&rft.issue=&rft.spage=53&rft.isbn=1882132513&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 2000 summer speciality conference; Riparian geology and management in multi-land use watersheds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 16 N1 - PubXState - MD N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bedload; channels; fluvial features; geomorphology; hydrology; Klamath Basin; Oregon; processes; runoff; sediment transport; sedimentation; streamflow; United States; water management; water resources ER - TY - JOUR T1 - Channel stability of the Neosho River downstream from John Redmond Dam, Kansas AN - 50896312; 2003-065622 JF - Technical Publication Series - American Water Resources Association AU - Juracek, Kyle E A2 - Wigington, Parker J., Jr. A2 - Beschta, Robert L. Y1 - 2000 PY - 2000 DA - 2000 SP - 593 EP - 595 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 00-2 SN - 0731-9789, 0731-9789 KW - United States KW - protection KW - hydrology KW - gauging KW - stabilization KW - John Redmond Dam KW - channels KW - effects KW - ecosystems KW - Neosho River KW - riparian environment KW - Kansas KW - streamflow KW - dams KW - aerial photography KW - ecology KW - construction KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50896312?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=Channel+stability+of+the+Neosho+River+downstream+from+John+Redmond+Dam%2C+Kansas&rft.au=Juracek%2C+Kyle+E&rft.aulast=Juracek&rft.aufirst=Kyle&rft.date=2000-01-01&rft.volume=00-2&rft.issue=&rft.spage=593&rft.isbn=1882132513&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 2000 summer speciality conference; Riparian geology and management in multi-land use watersheds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 6 N1 - PubXState - MD N1 - Document feature - sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aerial photography; channels; construction; dams; ecology; ecosystems; effects; gauging; hydrology; John Redmond Dam; Kansas; Neosho River; protection; remote sensing; riparian environment; stabilization; streamflow; United States ER - TY - JOUR T1 - Restoration of forest watersheds impacted by the powerful 1999 earthquake in Taiwan AN - 50896277; 2003-066039 AB - A powerful 7.3 magnitude earthquake struck Taiwan on September 21, 1999. The earthquake created permanent physiographic changes to over 11,297 ha of forest watersheds (nearly 0.31% of the island's land area) in central Taiwan. Much of this landscape was contorted and displaced by soil subsidence caused by soil liquefaction and massive landslides. Torrential rains have further aggravated the disturbance by causing mud and debris flows that are still actively reshaping the geomorphology of many riverine systems. These major disturbances have affected both the habitability of many cities and certainly the ecology of the landscape. The Taiwan Forestry Bureau (TFB) is the lead agency responsible not just for managing the forest watersheds, but also mitigating and minimizing the potential for further damages to human life, property, and water resources within the watersheds. From an ecological perspective, the TFB is assessing the impacts of the earthquake on forest plant communities, fauna and water/riverine/riparian systems. Watershed restoration efforts have already started in some areas that are critical to human use (e.g. dams and reservoirs). Developing a restoration plan in an evolving landscape that is both economically viable and ecologically credible is a major challenge that the TFB has undertaken. JF - Technical Publication Series - American Water Resources Association AU - Huang, Y Star AU - Chen, Shu-Huei AU - Samuel, S AU - Chan, S N Y1 - 2000 PY - 2000 DA - 2000 SP - 393 EP - 398 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 00-2 SN - 0731-9789, 0731-9789 KW - processes KW - hydrology KW - forests KW - Taiwan KW - revegetation KW - Far East KW - spatial data KW - magnitude KW - damage KW - watersheds KW - ecosystems KW - remediation KW - landslides KW - mass movements KW - ecology KW - Asia KW - earthquakes KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50896277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=Restoration+of+forest+watersheds+impacted+by+the+powerful+1999+earthquake+in+Taiwan&rft.au=Huang%2C+Y+Star%3BChen%2C+Shu-Huei%3BSamuel%2C+S%3BChan%2C+S+N&rft.aulast=Huang&rft.aufirst=Y&rft.date=2000-01-01&rft.volume=00-2&rft.issue=&rft.spage=393&rft.isbn=1882132513&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 2000 summer speciality conference; Riparian geology and management in multi-land use watersheds N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 5 N1 - PubXState - MD N1 - Document feature - illus. incl. 3 tables, geol. sketch maps N1 - Last updated - 2015-04-16 N1 - SubjectsTermNotLitGenreText - Asia; damage; earthquakes; ecology; ecosystems; Far East; forests; hydrology; landslides; magnitude; mass movements; processes; remediation; revegetation; spatial data; Taiwan; watersheds ER - TY - JOUR T1 - Effectiveness of riparian buffers in reducing nitrate-nitrogen concentrations in ground water AN - 50896211; 2003-065623 JF - Technical Publication Series - American Water Resources Association AU - Spruill, Timothy B AU - Galeone, David R A2 - Wigington, Parker J., Jr. A2 - Beschta, Robert L. Y1 - 2000 PY - 2000 DA - 2000 SP - 119 EP - 124 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 00-2 SN - 0731-9789, 0731-9789 KW - United States KW - water quality KW - Neuse Basin KW - surface water KW - statistical analysis KW - water management KW - pollution KW - nitrates KW - phosphorus KW - nonpoint sources KW - ground water KW - riparian environment KW - wetlands KW - sampling KW - denitrification KW - North Carolina KW - water resources KW - Contentnea Creek basin KW - Atlantic Coastal Plain KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50896211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=Effectiveness+of+riparian+buffers+in+reducing+nitrate-nitrogen+concentrations+in+ground+water&rft.au=Spruill%2C+Timothy+B%3BGaleone%2C+David+R&rft.aulast=Spruill&rft.aufirst=Timothy&rft.date=2000-01-01&rft.volume=00-2&rft.issue=&rft.spage=119&rft.isbn=1882132513&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 2000 summer speciality conference; Riparian geology and management in multi-land use watersheds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 10 N1 - PubXState - MD N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Atlantic Coastal Plain; Contentnea Creek basin; denitrification; ground water; Neuse Basin; nitrates; nonpoint sources; North Carolina; phosphorus; pollution; riparian environment; sampling; statistical analysis; surface water; United States; water management; water quality; water resources; wetlands ER - TY - JOUR T1 - Spawning gravel fine sediment levels between seasons and land type associations AN - 50895451; 2003-066038 AB - Eighty-two stream reaches were sampled throughout the Monongahela National Forest during the summer 1996 and winter of 1996-1997 to quantify fine sediment levels (<4 mm diameter material) in trout spawning gravels, examine seasonal differences in fine sediment, and determine if fine sediment levels differ among land type association (LTA), streambed slope classes and soil erosion potentials. Six shovel samples per stream reach were collected. Summer fine sediment levels (x = 15.8%) were significantly greater than winter levels (x = 13.3%), meaning summer values cannot be used directly as measures of winter conditions. However, the lower winter values indicate conditions during spawning and egg development were actually better than summer data would have suggested. Fine sediment did not vary significantly among slope or erosion potential classes, but it did vary significantly among LTAs. Groupings of LTAs were identified which had low-, mid- and high-range fine sediment levels. Two of the three LTAs with highest sediment levels are high elevation areas with red spruce (Picea rubens) that have recovered poorly since 1890-1920 logging and/or subsequent heavy fires. Many streams in these two LTAs are acidic and have low nutrients, which also limit spawning and general fisheries success. Geology, specifically resistant sandstone, is believed to be a dominant factor in limiting sediment availability in LTAs with the lowest fine sediment levels. JF - Technical Publication Series - American Water Resources Association AU - Edwards, Pamela AU - Williard, Karl AU - Duffield, Daniel AU - Edgerton, Barry A2 - Wigington, Parker J., Jr. A2 - Beschta, Robert L. Y1 - 2000 PY - 2000 DA - 2000 SP - 203 EP - 208 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 00-2 SN - 0731-9789, 0731-9789 KW - United States KW - erosion KW - stream sediments KW - Appalachians KW - ecosystems KW - reproduction KW - Pisces KW - sampling KW - sediments KW - ecology KW - Allegheny Mountains KW - soil erosion KW - West Virginia KW - soils KW - North America KW - Monongahela National Forest KW - Chordata KW - sediment transport KW - grain size KW - sedimentation KW - riparian environment KW - seasonal variations KW - Vertebrata KW - fluvial environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50895451?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=Spawning+gravel+fine+sediment+levels+between+seasons+and+land+type+associations&rft.au=Edwards%2C+Pamela%3BWilliard%2C+Karl%3BDuffield%2C+Daniel%3BEdgerton%2C+Barry&rft.aulast=Edwards&rft.aufirst=Pamela&rft.date=2000-01-01&rft.volume=00-2&rft.issue=&rft.spage=203&rft.isbn=1882132513&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 2000 summer speciality conference; Riparian geology and management in multi-land use watersheds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 8 N1 - PubXState - MD N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Allegheny Mountains; Appalachians; Chordata; ecology; ecosystems; erosion; fluvial environment; grain size; Monongahela National Forest; North America; Pisces; reproduction; riparian environment; sampling; seasonal variations; sediment transport; sedimentation; sediments; soil erosion; soils; stream sediments; United States; Vertebrata; West Virginia ER - TY - JOUR T1 - The role of landscape setting in riparian groundwater nitrate removal AN - 50895423; 2003-066035 AB - Our research evaluates riparian groundwater nitrate removal as a function of landscape setting, specifically geomorphology, hydrology, and soil wetness. These attributes can influence hydrologic linkages between uplands and riparian zones as well as groundwater flowpath, retention time, and nitrate transformation rates within riparian ecosystems. We have examined riparian groundwater nitrate removal in hydric and nonhydric riparian soils found in common landscape settings of the glaciated Northeast--till and outwash. Our previous in situ and mesocosm studies have shown high rates of nitrate removal from the shallow groundwater of hydric soils and minimal groundwater nitrate removal within nonhydric soils. Our current work focuses on identifying the depth of the biologically active zone in hydric riparian soils and determining the extent of groundwater flowpaths (i.e., upwelling and seeps) that bypass interactions with zones of rapid nitrate removal in riparian soils. By studying groundwater flowpaths, we can explore landscape characteristics that create sufficient groundwater retention in biologically active portions of riparian soils to remove substantial nitrate loads. As we gain information on factors affecting the role of riparian areas as sinks for groundwater nitrate, we improve our ability to focus riparian zone protection and restoration efforts on those areas with high removal capacities. JF - Technical Publication Series - American Water Resources Association AU - Gold, Arthur J AU - Groffman, Peter M AU - Addy, Kelly AU - Kellogg, D Q AU - Rosenblatt, Adam E A2 - Wigington, Parker J., Jr. A2 - Beschta, Robert L. Y1 - 2000 PY - 2000 DA - 2000 SP - 113 EP - 117 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 00-2 SN - 0731-9789, 0731-9789 KW - soils KW - protection KW - water quality KW - clastic sediments KW - outwash KW - water management KW - pollution KW - nitrates KW - till KW - seepage KW - remediation KW - ground water KW - riparian environment KW - denitrification KW - sediments KW - water resources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50895423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=The+role+of+landscape+setting+in+riparian+groundwater+nitrate+removal&rft.au=Gold%2C+Arthur+J%3BGroffman%2C+Peter+M%3BAddy%2C+Kelly%3BKellogg%2C+D+Q%3BRosenblatt%2C+Adam+E&rft.aulast=Gold&rft.aufirst=Arthur&rft.date=2000-01-01&rft.volume=00-2&rft.issue=&rft.spage=113&rft.isbn=1882132513&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 2000 summer speciality conference; Riparian geology and management in multi-land use watersheds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 23 N1 - PubXState - MD N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - clastic sediments; denitrification; ground water; nitrates; outwash; pollution; protection; remediation; riparian environment; sediments; seepage; soils; till; water management; water quality; water resources ER - TY - JOUR T1 - AWRA's 2000 summer speciality conference; Riparian geology and management in multi-land use watersheds AN - 50894931; 2003-065621 JF - Technical Publication Series - American Water Resources Association A2 - Wigington, Parker J., Jr. A2 - Beschta, Robert L. Y1 - 2000 PY - 2000 DA - 2000 SP - 616 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 00-2 SN - 0731-9789, 0731-9789 KW - hydrology KW - riparian environment KW - symposia KW - watersheds KW - ecology KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50894931?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=AWRA%27s+2000+summer+speciality+conference%3B+Riparian+geology+and+management+in+multi-land+use+watersheds&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2000-01-01&rft.volume=00-2&rft.issue=&rft.spage=&rft.isbn=1882132513&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 2000 summer speciality conference; Riparian geology and management in multi-land use watersheds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - MD N1 - SuppNotes - Individual papers or abstracts within scope are cited separately N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - ecology; hydrology; land use; riparian environment; symposia; watersheds ER - TY - JOUR T1 - Meander shape and the design of stable meanders AN - 50892670; 2003-066040 AB - When natural stream channels are relocated or restored, meander designs are frequently calculated from empirical relationships between channel size or discharge, degree of sinuosity, and meander plan-form descriptors. Because these parameters are interdependent, certain parameters must be chosen arbitrarily as independent variables, and trial and error is necessary to produce a final design. Theoretical models of meander plan form provide insights into the nature of stable meanders, but the use of these models for design has been limited. A methodology that makes the interdependency of parameters explicit would simplify and improve the design process for rehabilitation projects. The sine-generated curve model proposed by Langbein and Leopold (1966) provides a complete description of stable meander plan form, in which meander shape can be considered a function of sinuosity and a scale factor. We applied this model to propose a design procedure that reduces the number of independent design variables and the need for iterative solutions. JF - Technical Publication Series - American Water Resources Association AU - Hagerman, James R AU - Williams, John D A2 - Wigington, Parker J., Jr. A2 - Beschta, Robert L. Y1 - 2000 PY - 2000 DA - 2000 SP - 563 EP - 568 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 00-2 SN - 0731-9789, 0731-9789 KW - hydrology KW - stabilization KW - patterns KW - meanders KW - floodplains KW - landform evolution KW - channels KW - vegetation KW - riparian environment KW - fluvial features KW - slope stability KW - design KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50892670?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=Meander+shape+and+the+design+of+stable+meanders&rft.au=Hagerman%2C+James+R%3BWilliams%2C+John+D&rft.aulast=Hagerman&rft.aufirst=James&rft.date=2000-01-01&rft.volume=00-2&rft.issue=&rft.spage=563&rft.isbn=1882132513&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 2000 summer speciality conference; Riparian geology and management in multi-land use watersheds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 18 N1 - PubXState - MD N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - channels; design; floodplains; fluvial features; hydrology; landform evolution; meanders; patterns; riparian environment; slope stability; stabilization; vegetation ER - TY - JOUR T1 - Thermal definition of subsurface flow sources within a Cascadian riparian landscape AN - 50892631; 2003-066037 AB - Constant Channel, a floodplain tributary of Constant Creek, is used to study complex subsurface and surface water interactions for a riparian floodplain landscape in the North Cascade Mountains, Washington. A mixed coniferous and deciduous riparian forest covers the floodplain and terraces. Subsurface and surface water temperature data are used to examine the hypothesis: subsurface flows within riparian floodplains originate in three distinct source areas--hillslope, terrace, and river. Subsurface water thermal regimes provide an independent discriminator of source areas, even though heat transport within the systems is mainly by convection. Relationships between soil and subsurface water temperatures suggest: (1) soil temperatures can be used to identify recharge and discharge areas, (2) remnant fluvial geomorphic features, including buried substrate deposits and channels, are paths of focused recharge, and (3) dynamic local flow regimes form on lower terraces and floodplains. The hypothesized differences in source areas and changes in water thermal regimes provide insights into subsurface flow dynamics and practical methods for delineating source areas of other riparian landscapes. JF - Technical Publication Series - American Water Resources Association AU - Olson, Patricia L AU - Wissmar, Robert C A2 - Wigington, Parker J., Jr. A2 - Beschta, Robert L. Y1 - 2000 PY - 2000 DA - 2000 SP - 155 EP - 160 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 00-2 SN - 0731-9789, 0731-9789 KW - United States KW - hydrology KW - Washington KW - discriminant analysis KW - statistical analysis KW - channels KW - temperature KW - ground water KW - Cascade Range KW - recharge KW - riparian environment KW - streamflow KW - hydrodynamics KW - discharge KW - Constant Creek KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50892631?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=Thermal+definition+of+subsurface+flow+sources+within+a+Cascadian+riparian+landscape&rft.au=Olson%2C+Patricia+L%3BWissmar%2C+Robert+C&rft.aulast=Olson&rft.aufirst=Patricia&rft.date=2000-01-01&rft.volume=00-2&rft.issue=&rft.spage=155&rft.isbn=1882132513&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 2000 summer speciality conference; Riparian geology and management in multi-land use watersheds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 9 N1 - PubXState - MD N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Cascade Range; channels; Constant Creek; discharge; discriminant analysis; ground water; hydrodynamics; hydrology; recharge; riparian environment; statistical analysis; streamflow; temperature; United States; Washington ER - TY - JOUR T1 - Streamwater chemistry in the Chungliao Creek in southern Taiwan AN - 50892599; 2003-066036 AB - The objective of this research was to investigate the streamwater chemistry in Chungliao Creek, which is part of a study site for forest ecosystem management in southern Taiwan. Four hydrological stations along Chungliao Creek were established for monitoring water quality and quantity. We sampled streamwater monthly and measured discharge beginning in January 1999. Results showed that streamwater conductivity, pH, concentrations of Na (super +) , Ca (super 2+) , Mg (super 2+) , SO (sub 4) (super 2-) , and HCO (sub 3) (super -) decreased as discharge increased in Chungliao Creek. In contrast, suspended solids, concentrations of NH (super 4+) , and NO (sub 3) (super -) increased with increasing discharge. Other ionic parameters such as K (super +) , F (super -) , and Cl (super -) showed no obvious trend with discharge. The dominant cations in streamwater were Ca (super 2+) , Na (super +) , and Mg (super 2+) , while the dominant anions were HCO (sub 3) (super -) and SO (sub 4) (super 2-) . Among all the ionic parameters measured, the highest ion was HCO (sub 3) (super -) , which was followed by SO (sub 4) (super 2-) . With regard to the spatial variability, conductivity, pH, concentrations of Na (super +) , Ca (super 2+) , Mg (super 2+) , SO (sub 4) (super 2-) , and HCO (sub 3) (super -) decreased from downstream to upstream in Chungliao Creek for the same sampling date. However, the other ions didn't show this trend. JF - Technical Publication Series - American Water Resources Association AU - Liaw, Shyue-cherng AU - Huang, Chiung-piau AU - Liou, Chiung-pin Y1 - 2000 PY - 2000 DA - 2000 SP - 143 EP - 147 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 00-2 SN - 0731-9789, 0731-9789 KW - forests KW - concentration KW - Taiwan KW - Far East KW - solutes KW - suspended materials KW - ecosystems KW - vegetation KW - ions KW - hydrochemistry KW - southern Taiwan KW - streams KW - ecology KW - Chungliao Creek KW - discharge KW - Asia KW - geochemistry KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50892599?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=Streamwater+chemistry+in+the+Chungliao+Creek+in+southern+Taiwan&rft.au=Liaw%2C+Shyue-cherng%3BHuang%2C+Chiung-piau%3BLiou%2C+Chiung-pin&rft.aulast=Liaw&rft.aufirst=Shyue-cherng&rft.date=2000-01-01&rft.volume=00-2&rft.issue=&rft.spage=143&rft.isbn=1882132513&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 2000 summer speciality conference; Riparian geology and management in multi-land use watersheds N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 9 N1 - PubXState - MD N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2015-04-16 N1 - SubjectsTermNotLitGenreText - Asia; Chungliao Creek; concentration; discharge; ecology; ecosystems; Far East; forests; geochemistry; hydrochemistry; ions; solutes; southern Taiwan; streams; suspended materials; Taiwan; vegetation ER - TY - JOUR T1 - Column experimental design requirements for estimating model parameters from temporal moments under nonequilibrium conditions AN - 27234338; 0470451 (EN); 450465 (CI) AB - Data truncation is a practical necessity of laboratory column experiments because of both time and detection-limit constraints. In this paper, we study the extent to which data truncation can affect estimates of transport modeling parameters, as derived from temporal moment calculations and in the context of solute transport experiments that are influenced by sorption and nonequilibrium partitioning among mobile and immobile phases. Our results show that, for a given amount of solute used, step changes in input conditions can give more accurate moment-derived parameters than Dirac or square-wave pulses, whereas Dirac and square-wave pulses are essentially identical in terms of accuracy of parameter estimates. By simulating data truncation for a wide range of column input and transport conditions, we provide guidance toward the experimental designs that are needed to keep parameter estimation error within specified bounds, assuming nonequilibrium conditions of transport that result from either first-order or diffusion-based rate processes. More specifically, we investigate the relationships between mass of solute added to the system, minimum solute quantification limits, experiment duration times, and accuracy of parameter estimation, all as a function of experimental conditions. JF - Advances in Water Resources AU - Young, Dirk F AU - Ball, William P AD - U.S. EPA, Washington, DC, USA PY - 2000 SP - 449 EP - 460 PB - Elsevier Science BV, P.O. Box 211, Amsterdam, 1000 AE, Netherlands, [mailto:w.tukker@elsevier.nl], [URL:http://www.elsevier.com] VL - 23 IS - 5 SN - 0309-1708, 0309-1708 KW - Environmental Engineering (EN); Computer & Information Systems (CI) KW - Chemical reactors KW - Mass transfer KW - Method of moments KW - Solutions KW - Sorption KW - Phase equilibria KW - Phase composition KW - Computer simulation KW - Parameter estimation KW - Errors KW - Article KW - EE 723.2:Data Processing KW - EE 804.2:Inorganic Compounds KW - EE 641.3:Mass Transfer KW - EE 921.1:Algebra KW - EE 802.1:Chemical Plants and Equipment KW - EE 641.1:Thermodynamics (EN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/27234338?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Column+experimental+design+requirements+for+estimating+model+parameters+from+temporal+moments+under+nonequilibrium+conditions&rft.au=Young%2C+Dirk+F%3BBall%2C+William+P&rft.aulast=Young&rft.aufirst=Dirk&rft.date=2000-01-01&rft.volume=23&rft.issue=5&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-05-01 N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Treatment of acid mine drainage: I. Equilibrium biosorption of zinc and copper on non-viable activated sludge AN - 20839886; 4857191 AB - Biosorption is potentially attractive technology for treatment of acid mine drainage for separation/recovery of metal ions and mitigation of their toxicity to sulfate reducing bacteria. This study describes the equilibrium biosorption of Zn(II) and Cu(II) by nonviable activated sludge in a packed column adsorber. The Zn(II) uptake capacity of unconditioned sludge (not subjected to processing other than drying) was found to decrease in repeated adsorption-desorption cycles, declining by a factor greater than 20 from cycle 1 to cycle 6. Equilibrium uptake of metals by dried sludge conditioned by exposure to deionized water at a pH corresponding to that of the feed solution showed a strong pH dependence and was modeled using the Langmuir adsorption isotherm. Equilibrium metal uptakes from solutions containing single metal ion were 2.5 mg g(dry biomass) super(-1) and 3.4 mg g(dry biomass) super(-1) for Zn(II), and 1.9 mg g(dry biomass) super(-1) and 5.9 mg g(dry biomass) super(-1) for Cu(II) at pH 3.0 and 3.8, respectively. Equilibrium uptakes from binary mixtures were 30% lower than single component solution uptakes for both metals, indicating some competition between the two metals. No hysteresis was detected between adsorption and desorption equilibria. Anion concentration and pH measurements indicated that simultaneous sorption of metal cation and sulfate anion was probably occurring at pH 3.0, while proton exchange predominated at pH 3.8. Results of the study point to the usefulness of non-viable activated sludge as a biosorbent for recovery/separation of metal ions from acid mine drainages. JF - International Biodeterioration & Biodegradation AU - Utgikar, V AU - Chen, B-Y AU - Tabak, H H AU - Bishop, D F AU - Govind, R AD - National Risk Management Research Laboratory, US Environmental Protection Agency, Cincinnati, OH 45268, USA, tabak.henry@epamail.epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 19 EP - 28 VL - 46 IS - 1 SN - 0964-8305, 0964-8305 KW - sorption KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Sustainability Science Abstracts; Biotechnology and Bioengineering Abstracts; Pollution Abstracts; Water Resources Abstracts KW - Acid Mine Drainage KW - Water Pollution Treatment KW - Mine drainage KW - Mines KW - P 3000:SEWAGE & WASTEWATER TREATMENT KW - W 30950:Waste Treatment & Pollution Clean-up KW - SW 3040:Wastewater treatment processes KW - M3 1010:Issues in Sustainable Development KW - A 01056:Mineral microbiology KW - SW 3070:Water quality control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20839886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Biodeterioration+%26+Biodegradation&rft.atitle=Treatment+of+acid+mine+drainage%3A+I.+Equilibrium+biosorption+of+zinc+and+copper+on+non-viable+activated+sludge&rft.au=Utgikar%2C+V%3BChen%2C+B-Y%3BTabak%2C+H+H%3BBishop%2C+D+F%3BGovind%2C+R&rft.aulast=Utgikar&rft.aufirst=V&rft.date=2000-01-01&rft.volume=46&rft.issue=1&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=International+Biodeterioration+%26+Biodegradation&rft.issn=09648305&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-02-01 N1 - SuppNotes - Special Issue: Environmental Biotransformation of Wastes and Materials. N1 - Last updated - 2014-02-11 N1 - SubjectsTermNotLitGenreText - Mines; Mine drainage; Water Pollution Treatment ER - TY - JOUR T1 - Effects of Exposure - Water Chemistry on Acute Metal Toxicity to Fish AN - 20262946; 8803016 AB - The toxicities of cationic metals to fish vary widely as a function of various physicochemical characteristics of exposure water, including pH, temperature, suspended solids, dissolved organic matter, and various inorganic cations and anions. For example, acute copper toxicity to fathead minnows varies by more than two orders of magnitude over a range of chemistry typical of natural freshwaters. Effective regulation of metal pollution requires that such effects be understood and predicted. United States water quality standards for metals are often an empirical function of water hardness, but such adjustments are an incomplete description of the total effects of exposure water chemistry. JF - Environmental Science and Pollution Research International AU - Enckson, R J AD - Mid-Continent Ecology Division, National Health and Environmental Effects Laboratory, U.S. Environmental Protection Agency, 6201 Congdon Boulevard, Duluth, MN, USA, 55804, erickson.russell@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 16 VL - 7 IS - 1 SN - 0944-1344, 0944-1344 KW - Toxicology Abstracts; Pollution Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Environment Abstracts KW - Dissolved Solids KW - water quality KW - Anions KW - water hardness KW - Heavy metals KW - Copper KW - Freshwater KW - Water quality KW - Freshwater fish KW - Toxicity tests KW - Water Quality Standards KW - Exposure KW - pH effects KW - Pollution indicators KW - pH KW - Metals KW - Freshwater environments KW - Hardness KW - Water temperature KW - Cations KW - Water Pollution Effects KW - Dissolved organic matter KW - Fish KW - Pollution effects KW - Regulations KW - Suspended solids KW - dissolved organic matter KW - water chemistry KW - Environmental regulations KW - Physicochemical properties KW - Temperature KW - Pollution research KW - Suspended particulate matter KW - Toxicity KW - Water quality standards KW - USA KW - Bioaccumulation KW - Water hardness KW - Water chemistry KW - P 2000:FRESHWATER POLLUTION KW - Q5 08504:Effects on organisms KW - AQ 00008:Effects of Pollution KW - X 24360:Metals KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20262946?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+and+Pollution+Research+International&rft.atitle=Effects+of+Exposure+-+Water+Chemistry+on+Acute+Metal+Toxicity+to+Fish&rft.au=Enckson%2C+R+J&rft.aulast=Enckson&rft.aufirst=R&rft.date=2000-01-01&rft.volume=7&rft.issue=1&rft.spage=16&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+and+Pollution+Research+International&rft.issn=09441344&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Bioaccumulation; Water hardness; Heavy metals; Dissolved organic matter; Pollution effects; Toxicity; Freshwater fish; Pollution indicators; Toxicity tests; Anions; Freshwater environments; dissolved organic matter; Pollution research; Water temperature; Copper; Water quality; Cations; Water chemistry; pH effects; Suspended solids; Metals; water quality; water hardness; Environmental regulations; water chemistry; Physicochemical properties; Temperature; Suspended particulate matter; Water quality standards; Fish; pH; Dissolved Solids; Water Quality Standards; Exposure; Water Pollution Effects; Regulations; Hardness; USA; Freshwater ER - TY - JOUR T1 - The waste reduction (WAR) algorithm: environmental impacts, energy consumption, and engineering economics AN - 19921451; 4792486 AB - A general theory known as the waste reduction (WAR) algorithm has been developed to describe the flow and the generation of potential environmental impact through a chemical process. The theory defines indexes that characterize the generation and the output of potential environmental impact from a process. The existing theory has been extended to include the potential environmental impact of the energy consumed in a chemical process. Energy will have both an environmental impact as well as an economic impact on process design and analysis. Including energy into the analysis of environmental impact is done by re-writing the system boundaries to include the power plant which supplies the energy being consumed by the process and incorporating the environmental effects of the power plant into the analysis. The effect of this addition on the original potential impact indexes will be discussed. An extensive engineering economic evaluation has been included in the process analysis which inherently contains the cost of the consumed energy as an operating cost. A case study is presented which includes a base process design and two modifications to the base design. Each design is analyzed from an economic perspective and an environmental impact perspective. The environmental impact analysis is partitioned into the impacts of the non-product streams and the impacts of the energy generation/consumption process. The comparisons of these analysis procedures illustrate the consequences for decision making in the design of environmentally friendly processes. JF - Waste Management AU - Young, D AU - Scharp, R AU - Cabezas, H AD - United States Environmental Protection Agency, National Risk Management Research Laboratory, Sustainable Technology Division, Systems Analysis Branch, Cincinnati, OH 45268, USA, young.douglas@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 605 EP - 615 VL - 20 IS - 8 SN - 0956-053X, 0956-053X KW - waste management KW - waste reduction algorithm KW - Sustainability Science Abstracts; Pollution Abstracts; Human Population KW - Flow KW - Energy output KW - Chemical process industry KW - Economics KW - Environmental impact KW - Environmental effects KW - Algorithms KW - Power plants KW - Energy consumption KW - Waste management KW - M1 310:Waste Disposal and Management KW - M3 1010:Issues in Sustainable Development KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19921451?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Waste+Management&rft.atitle=The+waste+reduction+%28WAR%29+algorithm%3A+environmental+impacts%2C+energy+consumption%2C+and+engineering+economics&rft.au=Young%2C+D%3BScharp%2C+R%3BCabezas%2C+H&rft.aulast=Young&rft.aufirst=D&rft.date=2000-01-01&rft.volume=20&rft.issue=8&rft.spage=605&rft.isbn=&rft.btitle=&rft.title=Waste+Management&rft.issn=0956053X&rft_id=info:doi/10.1016%2FS0956-053X%2800%2900047-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-12-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Flow; Energy output; Economics; Power plants; Algorithms; Environmental effects; Chemical process industry; Environmental impact; Energy consumption; Waste management DO - http://dx.doi.org/10.1016/S0956-053X(00)00047-7 ER - TY - JOUR T1 - The variation of amount of microbes and its relations with the degradation of PAHs in the bioslurry reactor AN - 18165188; 4880686 AB - Taking concentration, temperature, inoculation amount, aeration and surfactant as regulation factors and by plate account (CFU) method to account the microbes, the study on the variation of microbes amount and its relations with the degradation of PAHs in the bio - slurry reactor is conducted. Results indicated that the bacteria amount in soil was positive related with the concentration of phenanthrene and pyrene spiked. The higher the initial content of phenanthrene and pyrene in soil, the higher the bacteria in amount. In addition, temperature in reactor played an important role on the rapid growing of microbes. Temperature in 30 degree C benefited the fast growing of bacteria and in 20 degree C benefited the rapid growth of fungi. Inoculation amount in 5% can increase the degradation rate of phenanthrene and pyrene. This study also showed that aeration amount was negative related with the bacteria amount and positive related with fungi's as well as the degradation rates of phenanthrene and pyrene, which illustrated that aerated condition benefited the growing of fungi. Fungi and aeration's control played an important role for the rapid degradation of phenanthrene and pyrene. Surfactant spiked in the concentration of w = 50 similar to 200 mg kg super(-1) can promote both the degradation of phenanthrene and pyrene, especially for pyrene. JF - Chinese Journal of Applied & Environmental Biology AU - Xu, H AU - Song, Y AU - Jing, X AU - Ren, L AD - General Monitoring Station of China EPA, Beijing 100029, P.R. China Y1 - 2000 PY - 2000 DA - 2000 VL - 6 IS - 5 SN - 1006-687X, 1006-687X KW - phenanthrene KW - pyrene KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; Water Resources Abstracts KW - Soil remediation KW - Biodegradation KW - Bioreactors KW - Slurries KW - Temperature effects KW - Bacteria KW - Polycyclic aromatic hydrocarbons KW - Soil Contamination KW - Hydrocarbons KW - Fungi KW - Temperature KW - Aeration KW - Aromatic Compounds KW - Soil pollution KW - Remediation KW - Surfactants KW - A 01063:Utilization KW - P 5000:LAND POLLUTION KW - SW 3070:Water quality control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18165188?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chinese+Journal+of+Applied+%26+Environmental+Biology&rft.atitle=The+variation+of+amount+of+microbes+and+its+relations+with+the+degradation+of+PAHs+in+the+bioslurry+reactor&rft.au=Xu%2C+H%3BSong%2C+Y%3BJing%2C+X%3BRen%2C+L&rft.aulast=Xu&rft.aufirst=H&rft.date=2000-01-01&rft.volume=6&rft.issue=5&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Chinese+Journal+of+Applied+%26+Environmental+Biology&rft.issn=1006687X&rft_id=info:doi/ LA - Chinese DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Temperature effects; Soil pollution; Bacteria; Polycyclic aromatic hydrocarbons; Biodegradation; Fungi; Slurries; Bioreactors; Surfactants; Aeration; Soil remediation; Temperature; Aromatic Compounds; Soil Contamination; Hydrocarbons; Remediation ER - TY - JOUR T1 - Effects and mechanisms of PCB ecotoxicity in food chains: algae arrow right fish arrow right seal arrow right polar bear AN - 18164150; 4848333 AB - This report, then, examines the process of PCB bioaccumulation within the marine food chain from fish to seals, whales, other marine mammals and to polar bears. Environmental toxic pollutants affect animals within the food chain in different ways but ultimately they affect humans as well. JF - Journal of Environmental Science and Health, Part C: Environmental Carcinogenesis and Ecotoxicology Reviews AU - Chiu, A AU - Chiu, N AU - Beaubier, N T AU - Beaubier, J AU - Nalesnik, R AU - Singh, D AU - Hill, W R AU - Lau, C AU - Riebow, J AD - National Center for Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, Washington, DC, USA Y1 - 2000///0, PY - 2000 DA - 0, 2000 SP - 127 EP - 152 VL - C18 IS - 2 SN - 1059-0501, 1059-0501 KW - Mammals KW - Pollution Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Microbiology Abstracts C: Algology, Mycology & Protozoology; Toxicology Abstracts KW - Food chains KW - Polychlorinated Biphenyls KW - Pollution effects KW - Phytoplankton KW - Biological Magnification KW - Pisces KW - Marine fish KW - Food Chains KW - PCB compounds KW - Wildlife Management KW - PCB KW - Algae KW - Marine KW - Wildlife KW - Mammalia KW - Seals KW - Polar Regions KW - Bioaccumulation KW - Water Pollution Effects KW - Reviews KW - Marine mammals KW - Marine organisms KW - Fish KW - Organic Compounds KW - Polluted environments KW - K 03099:Pollution KW - P 1000:MARINE POLLUTION KW - X 24156:Environmental impact KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18164150?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Science+and+Health%2C+Part+C%3A+Environmental+Carcinogenesis+and+Ecotoxicology+Reviews&rft.atitle=Effects+and+mechanisms+of+PCB+ecotoxicity+in+food+chains%3A+algae+arrow+right+fish+arrow+right+seal+arrow+right+polar+bear&rft.au=Chiu%2C+A%3BChiu%2C+N%3BBeaubier%2C+N+T%3BBeaubier%2C+J%3BNalesnik%2C+R%3BSingh%2C+D%3BHill%2C+W+R%3BLau%2C+C%3BRiebow%2C+J&rft.aulast=Chiu&rft.aufirst=A&rft.date=2000-01-01&rft.volume=C18&rft.issue=2&rft.spage=127&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Science+and+Health%2C+Part+C%3A+Environmental+Carcinogenesis+and+Ecotoxicology+Reviews&rft.issn=10590501&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Marine fish; Bioaccumulation; Food chains; Marine mammals; Phytoplankton; Pollution effects; PCB; Reviews; Wildlife; Marine organisms; Polluted environments; Algae; PCB compounds; Food Chains; Water Pollution Effects; Polychlorinated Biphenyls; Fish; Biological Magnification; Seals; Organic Compounds; Wildlife Management; Polar Regions; Pisces; Mammalia; Marine ER - TY - JOUR T1 - Sediment toxicity testing using the amphipod Corophium sp: Standardisation of test conditions for an acute survival test and a sub-chronic growth test in freshwater AN - 18106851; 5168778 AB - A series of laboratory freshwater sediment tests was carried out using the amphipod, Corophium sp, to establish standard test conditions for a 10-day survival toxicity test using adult amphipods and a 14-day sub-chronic test using juvenile amphipods, with survival and growth as endpoints. A high survival (90-92%) of adult amphipods was obtained with a sediment to overlying water ratio of I to 4 and a minimum sediment depth of 2 cm. Varying the sediment fines content (particle size <63 mu m) in the reference sediment from 0 to 75% and the total organic carbon (TOC) content from 0.13 to 5.8% concurrently did not significantly affect amphipod growth or survival. Feeding the juvenile amphipods three times a week in the sub-chronic sediment test with the diatom, Phaeodactylum tricornutum, supported a high survival rate (90%) and a growth rate of the juveniles of approximately 1 mm over 14 days. The findings suggest that both adults and juveniles of Corophium sp are suitable for use in assessing contaminated sediments over a wide range of grain sizes and TOC content. JF - Australasian Journal of Ecotoxicology AU - Surtikanti, H K AU - Hyne, R V AD - Ecotoxicology Section, Environment Protection Authority of NSW, c/- Centre for Ecotoxicology, Westbourne St, Gore Hill, NSW, 2065, Australia, hyner@epa.nsw.gov.au Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 11 EP - 20 VL - 6 IS - 1 SN - 1323-3475, 1323-3475 KW - ASFA 3: Aquatic Pollution & Environmental Quality; Toxicology Abstracts KW - Growth rate KW - Sediment pollution KW - Organic carbon KW - Corophium KW - Survival KW - Toxicity tests KW - Standardization KW - Fresh water KW - Growth KW - Bioassays KW - Phaeodactylum tricornutum KW - Amphipoda KW - Sublethal effects KW - Grain size KW - Toxicity testing KW - Q5 08502:Methods and instruments KW - X 24221:Toxicity testing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18106851?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Australasian+Journal+of+Ecotoxicology&rft.atitle=Sediment+toxicity+testing+using+the+amphipod+Corophium+sp%3A+Standardisation+of+test+conditions+for+an+acute+survival+test+and+a+sub-chronic+growth+test+in+freshwater&rft.au=Surtikanti%2C+H+K%3BHyne%2C+R+V&rft.aulast=Surtikanti&rft.aufirst=H&rft.date=2000-01-01&rft.volume=6&rft.issue=1&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Australasian+Journal+of+Ecotoxicology&rft.issn=13233475&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Standardization; Sediment pollution; Growth; Bioassays; Sublethal effects; Grain size; Organic carbon; Survival; Toxicity tests; Growth rate; Fresh water; Toxicity testing; Phaeodactylum tricornutum; Amphipoda; Corophium ER - TY - JOUR T1 - Studies on biosorption of zinc(II) and copper(II) on Desulfovibrio desulfuricans AN - 18019915; 4857190 AB - The objectives of these studies are to determine the equilibrium concentration and kinetics of metal sorption on sulfate-reducing bacteria (SRB) isolates. Adsorption establishes the net reversible cellular metal uptake and is related to SRB metal toxicity and the effects of environmental factors. Results from biosorption equilibria and kinetics of copper(II) and zinc(II) ions on Desulfovibrio desulfuricans and the effects of adsorption of these metals on SRB are discussed. Adsorption studies were conducted using stationary phase cells with equilibrium uptake at 24 h and pHs in the range of 4-7. Equilibrium adsorption in milligram of metal/g dry cell for copper(II) of 2.03 (pH 4.0) and 16.7 (pH 5.0) and zinc(II) of 6.40 (pH 5.5), 13.8 (pH 6.0), 39.2 (pH 6.2) and 49.6 (pH 6.6) was measured experimentally. Negligible biosorption of copper and zinc was found below pH 4.0, with metal sorption increasing within a limited range of pH mainly due to the neutral and/or deprotonated state of binding ligands on cell walls. Competition of metal ions during biosorption was investigated by conducting sorption experiments with Zn(II) using potassium phosphate buffer (KP) and deionized/distilled water. Zn(II) sorption capacity was lower in KP buffer than deionized water due to competition from potassium ions. Scanning Electron Microscope micrographs indicated that metal biosorption on SRB may be related to the production of extracellular polymeric substance (e.g., polysaccharide). JF - International Biodeterioration & Biodegradation AU - Chen, B-Y AU - Utgikar, V P AU - Harmon, S M AU - Tabak, H H AU - Bishop, D F AU - Govind, R AD - National Risk Management Research Laboratory, US Environmental Protection Agency, Cincinnati, OH 45268, USA, tabak.henry@epamail.epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 11 EP - 18 VL - 46 IS - 1 SN - 0964-8305, 0964-8305 KW - sorption KW - Pollution Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Sorption KW - Sulfate-reducing bacteria KW - Heavy metals KW - Desulfovibrio desulfuricans KW - Copper KW - Kinetics KW - Zinc KW - P 9000:ENVIRONMENTAL ACTION KW - A 01056:Mineral microbiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18019915?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Biodeterioration+%26+Biodegradation&rft.atitle=Studies+on+biosorption+of+zinc%28II%29+and+copper%28II%29+on+Desulfovibrio+desulfuricans&rft.au=Chen%2C+B-Y%3BUtgikar%2C+V+P%3BHarmon%2C+S+M%3BTabak%2C+H+H%3BBishop%2C+D+F%3BGovind%2C+R&rft.aulast=Chen&rft.aufirst=B-Y&rft.date=2000-01-01&rft.volume=46&rft.issue=1&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=International+Biodeterioration+%26+Biodegradation&rft.issn=09648305&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special Issue: Environmental Biotransformation of Wastes and Materials. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Desulfovibrio desulfuricans; Zinc; Copper; Sorption; Sulfate-reducing bacteria; Kinetics; Heavy metals ER - TY - JOUR T1 - Importance of organic carbon quantity on the variation of K sub(oc) in marine sediments AN - 18018843; 4827315 AB - The current study was conducted to investigate the importance of organic carbon quantity on the detection of statistical differences in the partitioning of three nonpolar organic chemicals (Lindane, fluoranthene, and a tetrachlorobiphenyl) to five marine sediments. The experimental design allowed for testing the statistical significance of differences between site K sub(oc)s. Geochemical information, including elemental composition, stable carbon isotopes and grain size, show Narragansett Bay sediments are heterogeneous receiving organic carbon from at least two inputs: terrestrial/anthropogenic and aquatic (planktonic) sources. Statistical comparisons of K sub(oc)s by site demonstrated basic differences in the geochemical behaviors of the contaminants. K sub(oc)s between sites for the pesticide Lindane and the PCB were not statistically different ( alpha = 0.05). Fluoranthene K sub(oc)s were more variable with logarithmic values ranging from 4.71 to 5.02 although no significant differences were detected in site comparisons. Incomplete acidification of sediments prior to organic carbon measurement resulted in several erroneous statistical differences detected in K sub(oc)s between sites. This study indicates that organic carbon quantity is the major geochemical factor controlling the statistical variability of partitioning of Lindane and the PCB to these marine sediments; organic carbon quality may have some influence but the magnitude of this effect is relatively minor. Conversely, the partitioning of fluoranthene, and possibly other PAHs (as also shown by others), appears also to be affected by other sediment characteristics. JF - Toxicological and Environmental Chemistry AU - Burgess, R M AU - Ryba, SA AU - Cantwell, M G AD - United States Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA, burgess.robert@epa.gov Y1 - 2000///0, PY - 2000 DA - 0, 2000 SP - 9 EP - 29 VL - 77 IS - 1-2 SN - 0277-2248, 0277-2248 KW - Fluoranthene KW - Tetrachlorobiphenyl KW - USA, Rhode Island, Narragansett Bay KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Sites KW - Path of Pollutants KW - Organic Carbon KW - Geochemistry KW - Organic carbon KW - Sediment analysis KW - Marine Sediments KW - Pollutants KW - Marine pollution KW - Comparison Studies KW - Statistical Analysis KW - ANW, USA, Rhode Island, Narragansett Bay KW - Organic Compounds KW - Organic compounds KW - Chemical pollutants KW - PCB KW - SW 3020:Sources and fate of pollution KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18018843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+and+Environmental+Chemistry&rft.atitle=Importance+of+organic+carbon+quantity+on+the+variation+of+K+sub%28oc%29+in+marine+sediments&rft.au=Burgess%2C+R+M%3BRyba%2C+SA%3BCantwell%2C+M+G&rft.aulast=Burgess&rft.aufirst=R&rft.date=2000-01-01&rft.volume=77&rft.issue=1-2&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=Toxicological+and+Environmental+Chemistry&rft.issn=02772248&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Marine pollution; Organic carbon; Organic compounds; Chemical pollutants; PCB; Sediment analysis; Marine Sediments; Sites; Pollutants; Comparison Studies; Path of Pollutants; Organic Carbon; Geochemistry; Statistical Analysis; Organic Compounds; ANW, USA, Rhode Island, Narragansett Bay ER - TY - JOUR T1 - Characterizing and identifying toxicants in marine waters: a review of marine toxicity identification evaluations (TIEs) AN - 18005746; 4756045 AB - One impact of human activity is contamination of the world's oceans with toxic pollutants. Marine toxicity identification evaluation (TIE) technology provides an approach for characterizing and identifying the causes of toxicity in aqueous and sediment samples. This review describes the evolution and use of marine TIEs since their initial development approximately fifteen years ago. Currently, 30 marine species are used in TIEs around the world on samples ranging from industrial and municipal effluents to sediment interstitial waters. Primary applications of TIEs have been for environmental regulatory purposes, specifically effluent permitting, but other potential uses include the assessment of contaminated sites and performance of risk assessments. When used with toxicity reduction evaluations (TRE) or other remedial techniques. TIEs can be a cost-effective tool for protecting oceanic resources. JF - International Journal of Environment and Pollution AU - Burgess, R M AD - US Environmental Protection Agency, NHEERL, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, Rhode Island 02882, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 2 EP - 33 VL - 13 IS - 1-6 SN - 0957-4352, 0957-4352 KW - Historical account KW - historical account KW - Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Pollution Abstracts; Toxicology Abstracts KW - Risk assessment KW - Ocean dumping KW - Pollution monitoring KW - Marine Environment KW - Toxicants KW - Government policy KW - Water pollution measurements KW - Risks KW - Marine Sediments KW - Waste disposal sites KW - Sampling KW - Pollution indicators KW - Toxicology KW - Pollutant Identification KW - Marine KW - World Oceans KW - Toxicity KW - Effluents KW - Pollutant identification KW - Outfalls KW - Marine pollution KW - Reviews KW - Oceans KW - Analytical techniques KW - Marine organisms KW - Indicator species KW - Pollution control KW - O 4095:Instruments/Methods KW - X 24230:Legislation & recommended standards KW - SW 3020:Sources and fate of pollution KW - P 1000:MARINE POLLUTION KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18005746?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Environment+and+Pollution&rft.atitle=Characterizing+and+identifying+toxicants+in+marine+waters%3A+a+review+of+marine+toxicity+identification+evaluations+%28TIEs%29&rft.au=Burgess%2C+R+M&rft.aulast=Burgess&rft.aufirst=R&rft.date=2000-01-01&rft.volume=13&rft.issue=1-6&rft.spage=2&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Environment+and+Pollution&rft.issn=09574352&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special issue: The control of marine pollution. Current status and future trends. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Ocean dumping; Pollution monitoring; Toxicants; Pollutant identification; Risks; Outfalls; Marine pollution; Analytical techniques; Waste disposal sites; Marine organisms; Pollution indicators; Toxicology; Pollution control; Indicator species; Risk assessment; Oceans; Reviews; Government policy; Historical account; Water pollution measurements; Pollutant Identification; Marine Environment; Marine Sediments; Sampling; Toxicity; Effluents; World Oceans; Marine ER - TY - JOUR T1 - Project evaluation AN - 17903466; 5140155 AB - Since 1972, the Clean Water Act (CWA) has provided the framework for addressing water quality problems in the United States. Despite over 25 years of effort, a substantial portion (40 percent) of assessed waters are still unsafe for fishing and swimming. Historically, the primary focus of our national efforts has been on implementation of the National Pollution Discharge Elimination System (NPDES) program. Numerous national evaluations indicate this has been very effective in addressing point sources of pollution. However, this progress has made the impact of nonpoint source pollution all that more obvious. Since 1987, States and approved tribes have been expanding the focus of water quality efforts to address nonpoint source pollution. The approaches adopted have been largely voluntary and watershed project specific. Will this be as effective as the NPDES approach? Most of the information we collect today on nonpoint source project is worthless when trying to assess the effectiveness of the overall program. JF - Water Resources Impact AU - Davenport, TE AD - USEPA Region V. Water Division, 77 West Jackson St., Chicago, IL 60604, USA, davenport.thomas@epamail.epa.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 4 EP - 7 VL - 2 IS - 1 SN - 1522-3175, 1522-3175 KW - Aqualine Abstracts KW - Point sources KW - Swimming KW - Law (see also Legislation) KW - Recreation and amenity KW - Pollution (see also contamination) KW - Water management KW - Water quality (Natural waters) KW - Fishing and fisheries KW - AQ 00001:Water Resources and Supplies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17903466?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Impact&rft.atitle=Project+evaluation&rft.au=Davenport%2C+TE&rft.aulast=Davenport&rft.aufirst=TE&rft.date=2000-01-01&rft.volume=2&rft.issue=1&rft.spage=4&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Impact&rft.issn=15223175&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Point sources; Swimming; Pollution (see also contamination); Recreation and amenity; Law (see also Legislation); Water management; Water quality (Natural waters); Fishing and fisheries ER - TY - JOUR T1 - A non-native perennial invades a native forest AN - 17844196; 4879810 AB - Disturbance is frequently a requirement for non-indigenous plant invasions, but plants that invade in the absence of significant disturbance pose special problems for conservationists and land stewards, as the invasion rates and effects are difficult to predict. Knowledge of the invader's population ecology is essential for the preservation of native plant communities. A sub-shrub native to South America, Tibouchina herbacea (Melastomataceae) is invading intact, wet forests and open, disturbed sites on the islands of Hawaii and Maui. Experimental tests of the importance of disturbance for reproductive rates showed that absence of canopy cover produced the highest rates of germination, survival and seed dispersal distance. Ground cover was less important, but had a positive effect on germination and a negative effect on survival. Results of these experiments suggest that T. herbacea will probably spread more quickly in open, disturbed areas, but is very capable of establishment in natural forests. If spread is arrested in the early stages, manual control may be effective, otherwise landscape-level control efforts, such as biological control, will be needed. Prevention of dispersal and control of T. herbacea in forested areas should be a priority for land managers in Hawaii. JF - Biological Invasions AU - Almasi, K N AD - Coastal Ecology Branch, Environmental Protection Agency, 2111 S.E. Marine Science Drive, Newport, OR 97365, USA, almasi.kama@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 219 EP - 230 VL - 2 IS - 3 SN - 1387-3547, 1387-3547 KW - USA, Hawaii KW - Ecology Abstracts KW - Tibouchina herbacea KW - Invasiveness KW - Forests KW - Introduced species KW - D 04640:Other angiosperms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17844196?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biological+Invasions&rft.atitle=A+non-native+perennial+invades+a+native+forest&rft.au=Almasi%2C+K+N&rft.aulast=Almasi&rft.aufirst=K&rft.date=2000-01-01&rft.volume=2&rft.issue=3&rft.spage=219&rft.isbn=&rft.btitle=&rft.title=Biological+Invasions&rft.issn=13873547&rft_id=info:doi/10.1023%2FA%3A1010009123469 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Tibouchina herbacea; Forests; Introduced species; Invasiveness DO - http://dx.doi.org/10.1023/A:1010009123469 ER - TY - JOUR T1 - Can fluoridation affect lead(II) in potable water? Hexafluorosilicate and fluoride equilibria in aqueous solution AN - 17814044; 4847441 AB - Recent reports have attempted to show that fluoridating potable water is linked to increased levels of lead(II) in the blood. We examine these claims in light of the established science and critically evaluate their significance. The completeness of hexafluorosilicate hydrolysis is of paramount importance in ensuring that total water quality is maintained. The possible impacts of such complexes as Pb super(II)-F-SiF sub(5) or PbF sub(x) super((2-x)) are discussed as are the contributions of fluoridation byproducts to total acid content. We calculate the fractional distribution of aqueous species based on known chemical equilibria and show the species concentrations for several different model tap waters. We discuss and quantitatively show the effects of other complexing anions, such as carbonate or hydroxide. Overall, we conclude that no credible evidence exists to show that water fluoridation has any quantitatable effects on the solubility, bioavailability, bioaccumulation, or reactivity of lead(0) or lead(II) compounds. The governing factors are the concentrations of a number of other species, such as (bi)carbonate, hydroxide, or chloride, whose effects far exceed those of fluoride or fluorosilicates under drinking water conditions. Lastly, we consider some previous epidemiological studies of lead(II) exposure and how recent papers fare methodologically. JF - International Journal of Environmental Studies AU - Urbansky, E T AU - Schock, M R AD - United States Environmental Protection Agency (EPA), Office of Research and Development, National Risk Management Research Laboratory, Water Supply and Water Resources Division, Treatment Technology Evaluation Branch, Cincinnati, OH 45268, USA, urbansky.edward@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 597 EP - 637 VL - 57 IS - 5 SN - 0020-7233, 0020-7233 KW - Risk Abstracts; Water Resources Abstracts; Health & Safety Science Abstracts; Toxicology Abstracts; Pollution Abstracts KW - Water treatment KW - Heavy metals KW - Fluoridation KW - Fluoride KW - Drinking water KW - Lead KW - Blood levels KW - X 24120:Food, additives & contaminants KW - H 3000:Environment and Ecology KW - P 2000:FRESHWATER POLLUTION KW - R2 23060:Medical and environmental health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17814044?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Environmental+Studies&rft.atitle=Can+fluoridation+affect+lead%28II%29+in+potable+water%3F+Hexafluorosilicate+and+fluoride+equilibria+in+aqueous+solution&rft.au=Urbansky%2C+E+T%3BSchock%2C+M+R&rft.aulast=Urbansky&rft.aufirst=E&rft.date=2000-01-01&rft.volume=57&rft.issue=5&rft.spage=597&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Environmental+Studies&rft.issn=00207233&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Water treatment; Fluoride; Fluoridation; Drinking water; Lead; Heavy metals; Blood levels ER - TY - JOUR T1 - Observational Batteries in Neurotoxicity Testing AN - 17812306; 4847606 AB - Behavioral evaluations are emerging as a key component in neurotoxicity testing. A neurobehavioral screening battery that is most often used for hazard identification consists of a functional observational battery (FOB) and motor activity. The FOB was developed as an improvement over routine cageside observations: major differences include the specification of observations, operational definitions of the behaviors to be observed, grading the severity of effect, and location of observations (open arena vs. home cage). A typical FOB protocol consists of approximately 20 to 30 end points, allowing for the detection and description of a range of neurobehavioral changes. We have focused on assessing critical characteristics (i.e., sensitivity, specificity, validity, and reproducibility) of these tests. Concerns have been raised as to the validity and reliability of observational methods for neurotoxicity screening. These tests were therefore the focus of an international collaborative study, sponsored by the International Programme on Chemical Safety (IPCS). The purpose of the IPCS study was to assess the general utility and reliability of neurobehavioral screening procedures in a diversity of testing situations. The test protocol was essentially that described in current United States Environmental Protection Agency (US EPA) guidelines. The resultant data indicated that all participants could detect and characterize the effects of known neurotoxicants, and the divergent profiles of effect obtained for different chemicals demonstrated the specificity of the methods. One conclusion, therefore, was that behavior can be a useful tool for assessing neurotoxicity. In addition, the study also provided a wealth of control data, examination of which provides evidence for the consistency and baseline values of behavioral measures. Reliability estimates were statistically established, providing a measure of the usefulness of individual end points for detecting chemical-induced toxicity. Another conclusion of the IPCS collaborative study was that the application of these methods requires careful attention to details of experimental design, observer training, and experience; these capabilities should be adequately documented by the use of proficiency studies. Recently, modifications of the standard FOB have been introduced, including expanded clinical observations (ECO) for standard toxicity studies. Although there are end points common between the FOB and ECO, it is not known if the latter is sufficient for neurotoxicity screening. Appropriate validation studies have not been conducted on these expanded observations. With the increasing dependency on these methods for neurotoxicity testing, and the number of studies that will be incorporating these methods, issues of test validity as well as data interpretation are becoming more critical. JF - International Journal of Toxicology AU - Moser, V C AD - Neurotoxicology Division (MD-74B), US EPA, Research Triangle Park, NC 27711, USA, moser.ginger@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 407 EP - 411 VL - 19 IS - 6 SN - 1091-5818, 1091-5818 KW - CSA Neurosciences Abstracts; Toxicology Abstracts KW - Standardization KW - Neurotoxicity KW - Government policy KW - Toxicity testing KW - X 24230:Legislation & recommended standards KW - N3 11020:Neuroprotocols and apparatus KW - X 24221:Toxicity testing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17812306?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Toxicology&rft.atitle=Observational+Batteries+in+Neurotoxicity+Testing&rft.au=Moser%2C+V+C&rft.aulast=Moser&rft.aufirst=V&rft.date=2000-01-01&rft.volume=19&rft.issue=6&rft.spage=407&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Toxicology&rft.issn=10915818&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Toxicity testing; Neurotoxicity; Government policy; Standardization ER - TY - JOUR T1 - Dose-response and time-course of neurobehavioral changes following oral chlorpyrifos in rats of different ages AN - 17799556; 4845786 AB - Young rats have been shown in several laboratories to be more sensitive to the neurotoxic effects of acute exposure to chlorpyrifos. To examine the neurobehavioral effects of chlorpyrifos as a function of age and dose, we conducted dose-response and time-course assessments in rats of three different ages (postnatal day, or PND, 17, 27, and adults). Doses were selected to span the effective dose range in each age group: PND17 - 4, 10, 20 mg/kg; PND27 - 10, 25, 50 mg/kg; adult - 10, 50, 100 mg/kg. Rats were tested at the time of peak effect on the day of dosing, and again at 1 and 3 days, and at 1 and 2 weeks after a single oral dose. There were age- and sex-related differences in the recovery of these behavioral effects; the adult males recovered from the behavioral effects more quickly than the other age groups, and the adult females showed the slowest recovery (up to at least 3 days). Although these doses had been shown previously to produce a similar degree of cholinesterase inhibition, the neurobehavioral alterations fell into the following three patterns of effect as a function of age. (1) Some endpoints (e.g., gait abnormalities, tremor) showed a dose-response curve that was shifted to the right in the older animals. Calculated ED50 values indicated that the PND17 rats were three- to five-fold more sensitive than the adults. (2) Some measures showed less effect in the youngest rats; for example, maximal motor activity decreases were half as great as with adults. (3) A few effects that were typically observed in adults, e.g., salivation, were not seen at all in the PND17 rats. Thus, differential responses on these neurobehavioral endpoints were observed as a function of age. These data suggest that, for some endpoints, young rats are more sensitive to a range of chlorpyrifos doses; however, the magnitude of age-related differences depends on the specific endpoint and time of assessment, as well as age and sex of the test subject. JF - Neurotoxicology and Teratology AU - Moser, V C AD - National Health and Environmental Effects Research Laboratory, Neurotoxicology Division (MD-74B), US Environmental Protection Agency, Research Triangle Park, NC 27711, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 713 EP - 723 VL - 22 IS - 5 SN - 0892-0362, 0892-0362 KW - rats KW - dose-response effects KW - CSA Neurosciences Abstracts; Toxicology Abstracts KW - Chlorpyrifos KW - Age KW - Behavior KW - Pesticides KW - Oral administration KW - X 24131:Acute exposure KW - N3 11139:Toxicological and psychoactive drug correlates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17799556?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Neurotoxicology+and+Teratology&rft.atitle=Dose-response+and+time-course+of+neurobehavioral+changes+following+oral+chlorpyrifos+in+rats+of+different+ages&rft.au=Moser%2C+V+C&rft.aulast=Moser&rft.aufirst=V&rft.date=2000-01-01&rft.volume=22&rft.issue=5&rft.spage=713&rft.isbn=&rft.btitle=&rft.title=Neurotoxicology+and+Teratology&rft.issn=08920362&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pesticides; Chlorpyrifos; Age; Oral administration; Behavior ER - TY - JOUR T1 - Influence of the drinking water disinfection by-product dibromoacetic acid on rat estrous cyclicity and ovarian follicular steroid release in vitro AN - 17742952; 4807989 AB - The drinking water disinfection by-product, dibromoacetic acid (DBA) has been reported to affect gonadal functions in the male rat. However, there is little information regarding the influence of DBA on female reproductive activity. Consequently, the present study investigated the effects of DBA on estrous cyclicity and the impact in vitro of DBA on ovarian follicular steroid secretion. Regularly cycling animals were dosed with DBA (0 to 270 mg/kg/day) for 14 days and estrous cyclicity was monitored during treatment and for an additional 2-week posttreatment interval. A dose-related alteration in cyclicity was observed at 90 and 270 mg/kg/day, which persisted through the posttreatment monitoring in the high dose group. An in vitro exposure of preovulatory follicles to DBA was then used to assess the influence of DBA on steroid release. To select a concentration for use, a single oral exposure to 270 mg/kg was administered, and the mean blood levels were determined over a 5-h interval. For this in vitro work, pairs of preovulatory follicles from PMSG-primed immature rats were exposed to 0 or 50 mu g/mL DBA over a 24-h period and evaluated for estradiol and progesterone release under baseline and hCG-stimulated conditions. The influence of tumor necrosis factor (TNF alpha ) exposures under these conditions was also determined. In the nonstimulated condition, DBA was found to increase the release of estradiol, but had no detectable effect in response to hCG. Progesterone, however, showed marked suppression under hCG stimulation following exposure to DBA, while nonstimulated secretion was unaffected. TNF alpha by itself also suppressed stimulated progesterone release, but had no additional effect in combination with DBA. The data suggest that one factor in the disruption in estrous cyclicity could be an alteration in steroid production, which was characterized by separate effects on both estradiol and progesterone secretion. JF - Reproductive Toxicology AU - Balchak, S K AU - Hedge, J M AU - Murr, A S AU - Mole, M L AU - Goldman, J M AD - Endocrinology Branch, Reproductive Toxicology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA, goldman.jerome@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 533 EP - 539 VL - 14 IS - 6 SN - 0890-6238, 0890-6238 KW - rats KW - dibromoacetic acid KW - steroids KW - Toxicology Abstracts KW - Ovaries KW - Drinking water KW - Estrus cycle KW - X 24120:Food, additives & contaminants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17742952?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reproductive+Toxicology&rft.atitle=Influence+of+the+drinking+water+disinfection+by-product+dibromoacetic+acid+on+rat+estrous+cyclicity+and+ovarian+follicular+steroid+release+in+vitro&rft.au=Balchak%2C+S+K%3BHedge%2C+J+M%3BMurr%2C+A+S%3BMole%2C+M+L%3BGoldman%2C+J+M&rft.aulast=Balchak&rft.aufirst=S&rft.date=2000-01-01&rft.volume=14&rft.issue=6&rft.spage=533&rft.isbn=&rft.btitle=&rft.title=Reproductive+Toxicology&rft.issn=08906238&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Drinking water; Estrus cycle; Ovaries ER - TY - JOUR T1 - Determination of Perchlorate at Trace Levels in Drinking Water by Ion-Pair Extraction with Electrospray Ionization Mass Spectrometry AN - 17731358; 4803591 AB - Perchlorate has been added to the U.S. Environmental Protection Agency's Drinking Water Contaminant Candidate List (CCL). The present work describes the analysis of perchlorate in water by liquid-liquid extraction followed by flow injection electrospray mass spectrometry (ESI/MS). Cationic surfactants, mostly alkyltrimethyl-ammonium salts, are used to ion-pair aqueous perchlorate, forming extractable ion pairs. The cationic surfactant associates with the perchlorate ion to form a complex detectable by ESI/MS. The selectivity of the extraction and the mass spectrometric detection increases confidence in the identification of perchlorate. The method detection limit for perchlorate based on 3.14 sigma sub(n-1) of seven replicate injections was 100 ng L super(-1) (parts per trillion). Standard addition was used to quantitate perchlorate in a drinking water sample from a contaminated source, and the concentration determined agreed within experimental error with the concentration determined by ion chromatography. JF - Analytical Chemistry (Washington) AU - Magnuson, M L AU - Urbansky, E T AU - Kelty, CA AD - National Risk Management Research Laboratory, Water Supply and Water Resources Division, Treatment Technology Evaluation Branch, United States Environmental Protection Agency, 26 West Martin Luther King Drive, Cincinnati, Ohio 45268, USA, Magnuson.Matthew@epamail.epa.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 25 EP - 29 VL - 72 IS - 1 SN - 0003-2700, 0003-2700 KW - Perchlorate KW - ion chromatography KW - mass spectrometry KW - perchlorate KW - Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Pollutant Identification KW - Water supplies (Potable) KW - Mass Spectrometry KW - Pollution detection KW - Water Analysis KW - Chromatography KW - Pollutant identification KW - Trace Levels KW - Water analysis KW - Perchlorates KW - Drinking Water KW - Organic Compounds KW - Spectrometry (Mass) KW - Organic compounds KW - Trace amounts KW - Drinking water KW - Surfactants KW - SW 3010:Identification of pollutants KW - P 2000:FRESHWATER POLLUTION KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17731358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+Chemistry+%28Washington%29&rft.atitle=Determination+of+Perchlorate+at+Trace+Levels+in+Drinking+Water+by+Ion-Pair+Extraction+with+Electrospray+Ionization+Mass+Spectrometry&rft.au=Magnuson%2C+M+L%3BUrbansky%2C+E+T%3BKelty%2C+CA&rft.aulast=Magnuson&rft.aufirst=M&rft.date=2000-01-01&rft.volume=72&rft.issue=1&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Analytical+Chemistry+%28Washington%29&rft.issn=00032700&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Pollution detection; Pollutant identification; Drinking water; Surfactants; Water supplies (Potable); Perchlorates; Chromatography; Trace amounts; Organic compounds; Spectrometry (Mass); Water analysis; Pollutant Identification; Mass Spectrometry; Drinking Water; Water Analysis; Organic Compounds; Trace Levels ER - TY - JOUR T1 - Testing the USA EPA's ISCST-Version 3 model on dioxins: a comparison of predicted and observed air and soil concentrations AN - 17731229; 4793742 AB - The central purpose of our study was to examine the performance of the United States Environmental Protection Agency's (EPA) nonreactive Gaussian air quality dispersion model, the Industrial Source Complex Short-Term Model (ISCST3) Version 98226, in predicting polychlorinated dibenzodioxins and polychlorinated dibenzofurans concentrations (subsequently referred to as dioxins and furans, or CDD/Fs) in both air and soil near the Columbus Municipal Solid Waste-to-Energy Facility (CMSWTE) in Columbus, OH. During its 11 yr operation, the CMSWTE was estimated to be emitting nearly 1 kg of CDD/F Toxic Equivalents (TEQs) per year, making it one of the highest single emitters of dioxin in the United States during its operation. An ambient air-monitoring study conducted in 1994, prior to its shutdown in December of 1994, clearly identified high dioxin air concentration in the downwind direction during two sampling events. In one of the events, the CMSWTE stack was concurrently monitored for dioxins. A soil sampling study conducted in 1995/1996 was similarly able to identify an area of impacted soil extending mainly in the predominant downwind direction up to 3 km from the CMSWTE. Site-specific information, including meteorological data, stack parameters and emission rates, and terrain descriptions, were input into ISCST3 to predict ground-level 48-h concentrations which could be compared with the 48-h measured air concentrations. Predicted annual average dry and wet deposition of particle-bound dioxins were input into a simple soil reservoir model to predict soil concentrations that would be present after 11.5 yr of emissions, which were compared to measured concentrations. Both soil- and air-predicted concentrations were generally within a factor of 10 of observations, and judged to be reasonable given the small number of observations and the uncertainties of the exercise. Principal uncertainties identified and discussed include: source characterization (stack emission rates of dioxins), meteorological data, and atmospheric and soil fate and transformation processes of the dioxins. JF - Atmospheric Environment AU - Lorber, M AU - Eschenroeder, A AU - Robinson, R AD - National Center for Environmental Assessment (8623D), US Environmental Protection Agency, 401 M Street, SW, Washington, DC 20460, USA, lorber.matthew@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 3995 EP - 4010 VL - 34 IS - 23 SN - 1352-2310, 1352-2310 KW - Pollution Abstracts KW - Air quality KW - Wet deposition KW - Soil contamination KW - Stack emissions KW - Dioxins KW - Dry deposition KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17731229?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Testing+the+USA+EPA%27s+ISCST-Version+3+model+on+dioxins%3A+a+comparison+of+predicted+and+observed+air+and+soil+concentrations&rft.au=Lorber%2C+M%3BEschenroeder%2C+A%3BRobinson%2C+R&rft.aulast=Lorber&rft.aufirst=M&rft.date=2000-01-01&rft.volume=34&rft.issue=23&rft.spage=3995&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Air quality; Stack emissions; Dioxins; Soil contamination; Dry deposition; Wet deposition ER - TY - JOUR T1 - Treated wastewater as a source of sediment contamination in Gulf of Mexico near-coastal areas a survey AN - 17725325; 4818631 AB - The chemical quality and toxicities of whole sediment and pore waters collected from 3 coastal rivers and 4 coastal bays receiving wastewaters discharged into the Mexico gulf near-coastal areas was evaluated for 2 years. Rooted plants, invertebrates and fish were assessed for acute and chronic toxicities associated with 10 industrial, municipal, steam-electric-power generation and forest product wastewater outfalls. Bioassays ranged from 30 minutes to 28 d duration. Sediment contamination was localized and decreased as distance from the discharge point increased. Major sediment contaminants were divalent trace metals. Few concentrations exceeded proposed threshold sediment quality assessment guidelines. Toxicity to either plants or animals was observed in 7 out of 10 outfalls but detection was dependent on the type of bioassay. Consequently, a suite of bioassays was required for toxicity assessments of sediment collected below wastewater discharges to ensure relevancy of the results. There are 35 references. JF - Environmental Toxicology and Chemistry AU - Lewis, M AU - Weber, D AU - Stanley, R AU - Albrecht, B AD - U.S. EPA, Gulf Breeze, Fla. Y1 - 2000 PY - 2000 DA - 2000 SP - 192 EP - 203 VL - 19 IS - 1 SN - 0730-7268, 0730-7268 KW - Animals (invertebrates) (see also individ groups) KW - Animals (see also individual groups below) KW - Aurelia KW - Fish (see also individual groups listed below) KW - Near-coastal KW - Reduction KW - Aqualine Abstracts KW - Chemicals KW - Discharge KW - Determination KW - Sediment KW - Roots KW - Forests KW - Threshold levels KW - Treatment KW - Gulfs KW - Pollutants KW - Acute KW - Duration KW - Bays KW - Survey KW - Metals KW - Valency KW - Coastal areas KW - Interstitial waters KW - Streams (in natural channels) KW - Outfalls KW - USA KW - Mexico KW - Industries KW - Standards KW - Contamination (see also Pollution) KW - Toxicity (see also Lethal limits) KW - Wastewater KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17725325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Treated+wastewater+as+a+source+of+sediment+contamination+in+Gulf+of+Mexico+near-coastal+areas+a+survey&rft.au=Lewis%2C+M%3BWeber%2C+D%3BStanley%2C+R%3BAlbrecht%2C+B&rft.aulast=Lewis&rft.aufirst=M&rft.date=2000-01-01&rft.volume=19&rft.issue=1&rft.spage=192&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Publication focus: Case Study. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Discharge; Chemicals; Determination; Forests; Roots; Sediment; Threshold levels; Gulfs; Treatment; Acute; Pollutants; Duration; Bays; Metals; Survey; Valency; Coastal areas; Interstitial waters; Streams (in natural channels); Outfalls; Industries; Contamination (see also Pollution); Standards; Toxicity (see also Lethal limits); Wastewater; USA; Mexico ER - TY - JOUR T1 - Steady-State Field-Scale Gas Permeability Estimation and Pore-Gas Velocity Calculation in a Domain Open to the Atmosphere AN - 17718441; 4792344 AB - Field-scale estimation of gas permeability and subsequent computation of pore-gas velocity profiles are critical elements of sound soil venting design. It has been our experience, however, in U.S. Environmental Protection Agency's (EPA's) technical assistance program, provided by the Office of Research and Development in support EPA regional offices, that many venting practitioners are unaware of equations and data interpretation methods appropriate for gas permeability estimation and pore-gas velocity computation. To ameliorate this situation, we use data collected at a U.S. Coast Guard Station in Traverse City, Michigan, to demonstrate gas permeability estimation and pore-gas velocity calculation for steady-state, axisymmetric, two-dimensional gas flow in a domain open to the atmosphere. For gas permeability estimation, we use random guesses constrained with decreasing intervals of radial and vertical permeability and analysis of root mean square errors to ensure attainment of a global versus local minimum. We demonstrate confidence in permeability estimation by providing plots of observed versus simulated pressure response. Finally, we illustrate how plots of pore-gas velocity as a function of distance and flow rate can be helpful in venting design. JF - Remediation AU - DiGiulio, D C AU - Varadhan, R AD - U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory Y1 - 2000 PY - 2000 DA - 2000 SP - 13 EP - 26 VL - 10 IS - 4 SN - 1051-5658, 1051-5658 KW - USA, Michigan, Traverse City KW - Pollution Abstracts KW - Velocity KW - Environmental engineering KW - Fluid mechanics KW - Soil KW - Permeability KW - Gases KW - Remediation KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17718441?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remediation&rft.atitle=Steady-State+Field-Scale+Gas+Permeability+Estimation+and+Pore-Gas+Velocity+Calculation+in+a+Domain+Open+to+the+Atmosphere&rft.au=DiGiulio%2C+D+C%3BVaradhan%2C+R&rft.aulast=DiGiulio&rft.aufirst=D&rft.date=2000-01-01&rft.volume=10&rft.issue=4&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Remediation&rft.issn=10515658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Gases; Permeability; Velocity; Soil; Environmental engineering; Fluid mechanics; Remediation ER - TY - JOUR T1 - Attention as a target of intoxication: Insights and methods from studies of drug abuse AN - 17695894; 4785265 AB - A symposium was convened to discuss recent developments in the assessment of attention and the effects of drugs and toxic chemicals on attention at the 17th annual meeting of the Behavioral Toxicology Society on May 1, 1999, in Research Triangle Park, NC. Speakers addressed issues including the methodology of assessing cognitive function, the neurobiology of specific aspects of attention, the dual roles of attention as a target of intoxication and as a mediating variable in the development of addiction to psychoactive drugs, the changes in attention that accompany neuropsychological disorders of schizophrenia, senile dementia of the Alzheimer type and attention deficit hyperactivity disorder, and potential therapies for these disorders. This article provides an overview of the objectives of the symposium, followed by summaries of each of the talks given. JF - Neurotoxicology and Teratology AU - Bushnell, P J AU - Levin, ED AU - Marrocco, R T AU - Sarter, M F AU - Strupp, B J AU - Warburton, D M AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 487 EP - 502 VL - 22 IS - 4 SN - 0892-0362, 0892-0362 KW - man KW - CSA Neurosciences Abstracts; Toxicology Abstracts KW - Conferences KW - Alzheimer's disease KW - Drug abuse KW - Schizophrenia KW - Mental disorders KW - Psychotropic drugs KW - Reviews KW - Dementia disorders KW - N3 11106:Neurobiology of drug abuse KW - X 24180:Social poisons & drug abuse KW - N3 11430:Conference proceedings UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17695894?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Neurotoxicology+and+Teratology&rft.atitle=Attention+as+a+target+of+intoxication%3A+Insights+and+methods+from+studies+of+drug+abuse&rft.au=Bushnell%2C+P+J%3BLevin%2C+ED%3BMarrocco%2C+R+T%3BSarter%2C+M+F%3BStrupp%2C+B+J%3BWarburton%2C+D+M&rft.aulast=Bushnell&rft.aufirst=P&rft.date=2000-01-01&rft.volume=22&rft.issue=4&rft.spage=487&rft.isbn=&rft.btitle=&rft.title=Neurotoxicology+and+Teratology&rft.issn=08920362&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Dementia disorders; Drug abuse; Conferences; Mental disorders; Reviews; Schizophrenia; Alzheimer's disease; Psychotropic drugs ER - TY - JOUR T1 - Indoor, outdoor, and personal exposure monitoring of particulate air pollution: the Baltimore elderly epidemiology-exposure pilot study AN - 17688686; 4767700 AB - A 17-day pilot study investigating potential PM exposures of an elderly population was conducted near Baltimore, Maryland. Collection of residential indoor, residential outdoor, and ambient monitoring data associated with the subjects living at a common retirement facility was integrated with results from a paired epidemiological pilot study. This integration was used to investigate the potential pathophysiological health effects resulting from daily changes in estimated PM exposures with results reported elsewhere. Objectives of the exposure study were to determine the feasibility of performing PM exposure assessment upon an elderly population and establishing relationships between the various exposure measures including personal monitoring. PM sub(2.5) was determined to be the dominant outdoor size fraction (0.83 PM sub(2.5)/PM sub(10) mass ratio by dichot monitoring). Individual 24-h PM sub(1.5) personal exposures ranged from 12 to 58 mu g m super(-3). Comparison of data from matched sampling dates resulted in mean daily PM sub(1.5) personal, PM sub(2.5) outdoor, and PM sub(1.5) indoor concentrations of 34, 17, and 17 mu g m super(-3), respectively. Activity patterns of the study population indicated a generally sedentary population spending a mean of 96% of each day indoors. Future studies would benefit from the use of a consistent sampling methodology across a larger number of PM measurement sites relevant to the elderly subjects, as well as a larger personal PM exposure study population to more successfully collect data needed in matched epidemiological-exposure studies. JF - Atmospheric Environment AU - Williams, R AU - Creason, J AU - Zweidinger, R AU - Watts, R AU - Sheldon, L AU - Shy, C AD - US Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, MD-56, Research Triangle Park, NC 27711, USA, williams.ronald@epamail.epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 4193 EP - 4204 VL - 34 IS - 24 SN - 1352-2310, 1352-2310 KW - USA, Maryland, Baltimore KW - elderly KW - Pollution Abstracts; Health & Safety Science Abstracts KW - Pollution monitoring KW - Physiology KW - Environmental health KW - Pollution effects KW - Particulates KW - Urban areas KW - Air pollution KW - H 12000:Epidemiology and Public Health KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17688686?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Indoor%2C+outdoor%2C+and+personal+exposure+monitoring+of+particulate+air+pollution%3A+the+Baltimore+elderly+epidemiology-exposure+pilot+study&rft.au=Williams%2C+R%3BCreason%2C+J%3BZweidinger%2C+R%3BWatts%2C+R%3BSheldon%2C+L%3BShy%2C+C&rft.aulast=Williams&rft.aufirst=R&rft.date=2000-01-01&rft.volume=34&rft.issue=24&rft.spage=4193&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Air pollution; Pollution effects; Environmental health; Urban areas; Pollution monitoring; Physiology; Particulates ER - TY - JOUR T1 - Organochlorine pesticide concentrations and enantiomer fractions for chlordane in indoor air from the US cornbelt AN - 17682438; 4767696 AB - Thirty-seven indoor air samples were collected and analyzed to determine if enantioselective degradation of past-use organochlorine pesticides, occurs indoors and to increase the available information on concentrations in homes. Samples were collected from homes in the US cornbelt region and analyzed for the concentrations of 11 pesticides and the enantiomer signature of chlordanes. Residues were found for all pesticides analyzed in at least several of the samples, with chlordane dominating in most samples. Racemic residues were seen for the chlordane enantiomers in all samples. Since levels of organochlorine pesticides in urban areas are often an order of magnitude above ambient levels, emissions from house foundations may be a source of these compounds to ambient air. Past research has shown that selective enantiomeric degradation occurs in many environmental samples resulting in non-racemic residues. Knowledge of the enantiomer signatures of chlordane and other pesticides in different media may be useful for distinguishing sources of chlordane to ambient air. JF - Atmospheric Environment AU - Leone, AD AU - Ulrich, E M AU - Bodnar, CE AU - Falconer, R L AU - Hites, R A AD - US EPA, NERL, MD-44, Research Triangle Park, NC 27711, USA, falconer.renee@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 4131 EP - 4138 VL - 34 IS - 24 SN - 1352-2310, 1352-2310 KW - Pollution Abstracts KW - Organochlorine compounds KW - Indoor air pollution KW - Agricultural pollution KW - Pesticides KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17682438?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Organochlorine+pesticide+concentrations+and+enantiomer+fractions+for+chlordane+in+indoor+air+from+the+US+cornbelt&rft.au=Leone%2C+AD%3BUlrich%2C+E+M%3BBodnar%2C+CE%3BFalconer%2C+R+L%3BHites%2C+R+A&rft.aulast=Leone&rft.aufirst=AD&rft.date=2000-01-01&rft.volume=34&rft.issue=24&rft.spage=4131&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Agricultural pollution; Organochlorine compounds; Indoor air pollution; Pesticides ER - TY - JOUR T1 - Distributions of lake fishes in the northeast - II. The minnows (Cyprinidae) AN - 17680246; 4749499 AB - We discuss the distribution and native status of 24 minnow species (family: Cyprinidae) collected at 203 randomly selected lakes in the northeastern USA (New England, New York, New Jersey) by the Environmental Monitoring and Assessment Program (EMAP). Twenty-four species were collected during the summers of 1991-96. Only golden shiner was frequently collected, occurring in 71% of the sampled lakes. Fallfish, creek chub, and common shiner were also common. The remaining species were taken in <10% of the lakes. Physical (surface area, depth, elevation), chemical (pH, total phosphorus), and watershed disturbance characteristics of the lakes show distinct species-specific patterns. Evidence suggests that native minnow biodiversity has declined over the last 150 years as a result of changing biotic, physical, chemical, and watershed characteristics. JF - Northeastern Naturalist AU - Whittier, T R AU - Halliwell, D B AU - Daniels, R A AD - Dynamac International, Inc., U.S. Environmental Protection Agency, 200 SW 35th Street, Corvallis, OR 97333, USA, whittier@mail.cor.epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 131 EP - 156 PB - Allen Press, Inc. VL - 7 IS - 2 SN - 1092-6194, 1092-6194 KW - Carps KW - Minnows KW - Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Biological surveys KW - Freshwater lakes KW - Cyprinidae KW - Quantitative distribution KW - Ecological distribution KW - Check lists KW - Freshwater KW - Freshwater fish KW - USA, Northeast KW - Q1 08342:Geographical distribution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17680246?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Northeastern+Naturalist&rft.atitle=Distributions+of+lake+fishes+in+the+northeast+-+II.+The+minnows+%28Cyprinidae%29&rft.au=Whittier%2C+T+R%3BHalliwell%2C+D+B%3BDaniels%2C+R+A&rft.aulast=Whittier&rft.aufirst=T&rft.date=2000-01-01&rft.volume=7&rft.issue=2&rft.spage=131&rft.isbn=&rft.btitle=&rft.title=Northeastern+Naturalist&rft.issn=10926194&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Biological surveys; Freshwater lakes; Quantitative distribution; Ecological distribution; Check lists; Freshwater fish; Cyprinidae; USA, Northeast; Freshwater ER - TY - JOUR T1 - The role of chlorine in dioxin formation AN - 17678506; 4729578 AB - There is poor correlation between total chlorine in waste streams and formation of polychlorinated dibenzodioxin and polychlorinated dibenzofuran (PCDD/F) during waste combustion. This is because the active chlorine (Cl) species are strongly dependent upon combustion conditions. For homogeneous conditions, trace amounts of a hydrocarbon species (benzene) injected into the effluent from complete combustion of a mixed chlorocarbon fuel (ethylene and chloromethane) results in formation of stable, oxygenated and chlorinated compounds. This occurs over a broad range of temperatures (400-900 degree C), provided that a fraction of the system chlorine is in the Cl radical form. Cl is the only form in which chlorine can react, in gas-phase, with stable hydrocarbon species, and these reactions are very fast, even in the low temperature regime. Molecular chlorine (Cl sub(2)) may subsequently participate in reactions with carbon-based radicals, and these reactions are the primary source of chlorinated products. Hydrogen chloride (HCl) - the major chlorine species in the products - can react with oxidizing radicals (eg, OH) and promptly form significant amounts of Cl. Gas temperature has a great influence on the final distribution of products. At 800-900 degree C, practically all of the benzene which was attacked by Cl is converted to carbon monoxide and small unsaturated hydrocarbons by subsequent reactions with oxygen. At about 750 degree C, measurable concentrations of chlorobenzenes are formed. At lower temperatures (400-600 degree C), chlorophenols become a large fraction (up to 15%) of the total reacted benzene. Heterogeneous reactions result in the formation of Cl sub(2) through catalyzed reactions (most actively by copper salts) and promotion of carbon-Cl bond formation. The latter is dependent on the ash surface species and type, ash adsorptive characteristics, temperature, and presence of regenerative Cl in the waste combustion products. JF - Process Safety and Environmental Protection AU - Gullett, B K AU - Sarofim, A F AU - Smith, KA AU - Procaccini, C AD - US Environmental Protection Agency, National Risk Management Research Laboratory, NC, USA Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 47 EP - 52 VL - 78 IS - B1 SN - 0957-5820, 0957-5820 KW - Pollution Abstracts KW - Incineration KW - Combustion products KW - PCDF KW - Waste disposal KW - PCDD KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17678506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Process+Safety+and+Environmental+Protection&rft.atitle=The+role+of+chlorine+in+dioxin+formation&rft.au=Gullett%2C+B+K%3BSarofim%2C+A+F%3BSmith%2C+KA%3BProcaccini%2C+C&rft.aulast=Gullett&rft.aufirst=B&rft.date=2000-01-01&rft.volume=78&rft.issue=B1&rft.spage=47&rft.isbn=&rft.btitle=&rft.title=Process+Safety+and+Environmental+Protection&rft.issn=09575820&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Waste disposal; Incineration; Combustion products; PCDD; PCDF ER - TY - JOUR T1 - Analysis of volatiles and semivolatiles by direct aqueous injection AN - 17672452; 4740537 AB - Direct aqueous injection analysis (DAI) with gas chromatographic separation and ion trap mass spectral detection was used to analyze aqueous samples for mu g/L levels of 54 volatile and semivolatile compounds, and problematic non-purgeables and non-extractables. The method reduces sample handling, increases sample throughput, and avoids the use of solvents ordinarily required for solvent exchange and analyte pre-concentration which would otherwise require disposal as hazardous waste. Aqueous standards containing volatile and semivolatile organic compounds were directly injected in 0.1- mu L volumes into a 0.22-mm id capillary column interfaced to an ion trap mass spectrometer. Peak shape was adequate for quantification, and method detection limits for replicate injections (n=7) ranged from 3 to 20 000 mu g/L, averaging 100 mu g/L. Precision (%RSD) was calculated at each level for each compound and averaged 12% at the highest level. Analysis of domestic tap water readily revealed the presence of three trihalomethanes (chloroform, dichlorobromomethane, and chlorodibromomethane) at the low- mu g/L level. Analysis of an aqueous sample from a hazardous waste site monitored the presence of various volatile and semivolatile compounds at mg/L levels. JF - International Journal of Environmental Analytical Chemistry AU - Pyle, S M AU - Marcus, AB AD - United States Environmental Protection Agency, National Exposure Research Laboratory, Environmental Sciences Division, P.O. Box 93478, Las Vegas, NV 89193-3478, USA, Pyle.Steven@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 17 EP - 29 VL - 76 IS - 1 SN - 0306-7319, 0306-7319 KW - trihalomethanes KW - Pollution Abstracts KW - Water sampling KW - Mass spectrometry KW - Chloroform KW - Gas chromatography KW - Drinking water KW - Sampling methods KW - Volatile organic compounds KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17672452?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Environmental+Analytical+Chemistry&rft.atitle=Analysis+of+volatiles+and+semivolatiles+by+direct+aqueous+injection&rft.au=Pyle%2C+S+M%3BMarcus%2C+AB&rft.aulast=Pyle&rft.aufirst=S&rft.date=2000-01-01&rft.volume=76&rft.issue=1&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Environmental+Analytical+Chemistry&rft.issn=03067319&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Water sampling; Gas chromatography; Volatile organic compounds; Mass spectrometry; Sampling methods; Drinking water; Chloroform ER - TY - JOUR T1 - Solid phase extraction and high performance liquid chromatography with photodiode array detection of chemical indicators of human fecal contamination in water AN - 17655251; 4741095 AB - Faster and more sensitive analysis of water that is contaminated by human fecal matter is very important for public health. The current microbiological methods to assess water quality do not meet this need. Alternate non-microbial human fecal indicators have been proposed by various researchers. The high performance liquid chromatography (HPLC) analysis with photodiode array detection (PDA) of three human fecal indicators, caffeine, urobilin, and coprostanol was developed. Both caffeine and urobilin were analyzed simultaneously using a linear gradient protocol and monitored at 270 nm and 480 nm. The analysis gave linearity and limit of detection down to hundredths of mu g/mL. A solid phase extraction (SPE) protocol was also developed for caffeine and urobilin. Coprostanol was analyzed using HPLC with PDA detection with post-column derivatization. The derivatization was achieved by acylation of coprostanol with p-nitrobenzoyl chloride. JF - Journal of Liquid Chromatography & Related Technologies AU - Piocos, E A AU - de la Cruz, AA AD - National Exposure Research Laboratory, The U. S. Environmental Protection Agency, Cincinnati, OH 45268, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 1281 EP - 1291 VL - 23 IS - 8 SN - 1082-6076, 1082-6076 KW - photodiode array detection KW - man KW - feces KW - photochemistry KW - Toxicology Abstracts; Pollution Abstracts KW - High-performance liquid chromatography KW - Pollution detection KW - Liquid chromatography KW - Water quality KW - Solid phase methods KW - Feces KW - Water pollution KW - P 2000:FRESHWATER POLLUTION KW - X 24222:Analytical procedures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17655251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Liquid+Chromatography+%26+Related+Technologies&rft.atitle=Solid+phase+extraction+and+high+performance+liquid+chromatography+with+photodiode+array+detection+of+chemical+indicators+of+human+fecal+contamination+in+water&rft.au=Piocos%2C+E+A%3Bde+la+Cruz%2C+AA&rft.aulast=Piocos&rft.aufirst=E&rft.date=2000-01-01&rft.volume=23&rft.issue=8&rft.spage=1281&rft.isbn=&rft.btitle=&rft.title=Journal+of+Liquid+Chromatography+%26+Related+Technologies&rft.issn=10826076&rft_id=info:doi/10.1081%2FJLC-100100414 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Water pollution; Pollution detection; Liquid chromatography; Feces; Solid phase methods; High-performance liquid chromatography; Water quality DO - http://dx.doi.org/10.1081/JLC-100100414 ER - TY - JOUR T1 - Vulnerability of ecosystems of the mid-Atlantic region, USA, to climate change AN - 17650101; 4711229 AB - Changes in the distribution of vegetation in the mid-Atlantic region of the United States were explored for two climate-change scenarios. The equilibrium vegetation ecology (EVE) model was used to project the distribution of life forms and to combine these into biomes for a doubled-CO sub(2) scenario generated by the GENESIS earth system model. The species model, a climate-envelope model, was used to project the distribution of 200 woody plant species for a climate-change scenario with mean 2 degree C warming, enhanced winter warming, and no net evapotranspiration. Results from EVE suggest a considerable northward shift of both northern and southern boundaries of the biomes that occur in the mid-Atlantic region. The species model, using the climate scenario with no net evapotranspiration, more closely examines the isolated effect of temperature. This model predicts that most species will persist in their present location, with considerable expansion northward and with a small fraction of the species throughout the region experiencing dieback. Present-day ranges of several vertebrate species including the frog considered with anticipated climatic changes, suggest that animal range changes will also occur. JF - Environmental Toxicology and Chemistry AU - Lassiter, R R AU - Box, E O AU - Wiegert, R G AU - Johnston, J M AU - Bergengren, J AU - Suarez, LA AD - Environmental Research Division, National Exposure Research Laboratory, U.S. Environmental Protection Agency, 960 College Station Road, Athens, Georgia 30605-2700, USA, lassiter.ray@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1153 EP - 1160 VL - 19 IS - 4 SN - 0730-7268, 0730-7268 KW - USA, Mid-Atlantic Region KW - mathematical models KW - ASFA 3: Aquatic Pollution & Environmental Quality; Risk Abstracts; Pollution Abstracts KW - Ecosystems KW - Climatic changes KW - Temperature KW - Environmental impact KW - Vegetation KW - Pollution effects KW - Evapotranspiration KW - Ecosystem disturbance KW - USA KW - Biota KW - Carbon dioxide KW - R2 23040:Biological KW - P 0000:AIR POLLUTION KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17650101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Vulnerability+of+ecosystems+of+the+mid-Atlantic+region%2C+USA%2C+to+climate+change&rft.au=Lassiter%2C+R+R%3BBox%2C+E+O%3BWiegert%2C+R+G%3BJohnston%2C+J+M%3BBergengren%2C+J%3BSuarez%2C+LA&rft.aulast=Lassiter&rft.aufirst=R&rft.date=2000-01-01&rft.volume=19&rft.issue=4&rft.spage=1153&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Assessing Ecosystem Vulnerability. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Climatic changes; Environmental impact; Pollution effects; Evapotranspiration; Ecosystem disturbance; Biota; Ecosystems; Temperature; Vegetation; Carbon dioxide; USA ER - TY - JOUR T1 - Sediment burial of PCBs in the offshore Baltic Sea AN - 17642496; 4802344 AB - In 1993, a large-scale investigation of polychlorinated biphenyls (PCBs) in Baltic Sea sediments was performed in cooperation between the Baltic states. sPCB (IUPAC No. 52, 101, 118, 105, 153, 138, 180) in surficial sediments increased from north (mean 213 ng g super(-1) C) to south (mean 382 ng g super(-1) C), indicating atmospheric influence. In contrast to decreasing PCB trends in pelagic biota, the sPCB in dated sediment cores from the Baltic proper showed increased or constant concentrations during recent decades. Down-core congener patterns showed no changes during the 20th century. After re-calculation of sPCB deposition, assuming interannually variable dry matter deposition, the sPCB sediment deposition trend matches the observed sPCB concentration trend in Baltic biota although the reductions in recent decades are less for the sediments. A calculation of sediment burial of sPCB indicated that laminated Baltic proper sediments are efficient traps, and a mass balance showed that the sPCB retention time in the water mass is less than one year. JF - Ambio AU - Jonsson, P AD - Swedish Environmental Protection Agency SE-106 48 Stockholm Sweden, per.jonsson@environ.se Y1 - 2000 PY - 2000 DA - 2000 SP - 260 EP - 267 VL - 29 IS - 4-5 SN - 0044-7447, 0044-7447 KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - ANE, Baltic Sea KW - ANE, North Sea, Kattegat KW - Fallout KW - Sediment chemistry KW - Marine pollution KW - Distribution KW - Brackish KW - PCB KW - Q5 08503:Characteristics, behavior and fate UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17642496?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ambio&rft.atitle=Sediment+burial+of+PCBs+in+the+offshore+Baltic+Sea&rft.au=Jonsson%2C+P&rft.aulast=Jonsson&rft.aufirst=P&rft.date=2000-01-01&rft.volume=29&rft.issue=4-5&rft.spage=260&rft.isbn=&rft.btitle=&rft.title=Ambio&rft.issn=00447447&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Fallout; Sediment chemistry; Marine pollution; Distribution; PCB; ANE, North Sea, Kattegat; ANE, Baltic Sea; Brackish ER - TY - JOUR T1 - Tropical Mexico's recent land-use change: A region's contribution to the global carbon cycle AN - 17637527; 4775667 AB - We applied modeled biomass density estimates to changes in land use/land cover (LU/LC) statistics for the intensively impacted and highly fragmented landscape of tropical Mexico to estimate the flux of carbon (C) between terrestrial ecosystems and the atmosphere between 1977 and 1992. Biomass densities were assigned to hybrid LU/LC classes on vegetation maps produced by Mexican governmental organizations and, by differencing areas and biomass C pools, net C flux was calculated in the eight-state tropical region of southeast Mexico. These states, representing tropical Mexico, experienced a mean annual deforestation rate of nearly 559,000 ha/yr, or 1.9%, between 1977 and 1992. The total area of closed forests decreased by 26%, open/fragmented forests decreased by 31%, and agroecosystem areas increased by 64%. Total mean biomass densities ranged from a high of 265 Mg/ha in the Veracruz state tall/medium tropical evergreen forest class to a low of 12 Mg/ha in the cultivated land class (several states). We estimate that a total of 280 Tg C were released from the terrestrial biosphere during the 15-yr period covered by our study, equal to nearly 20% of the region's 1977 biomass C pool. The study region, while comprising just 24% of Mexico's surface area, contributed 36% of the net national C emissions from LU/LC change. JF - Ecological Applications AU - Cairns, MA AU - Haggerty, P K AU - Alvarez, R AU - De Jong, BHJ AU - Olmsted, I AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Western Ecology Division, 200 SW 35th Street, Corvallis, Oregon, 97333, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 1426 EP - 1441 PB - Ecological Society of America VL - 10 IS - 5 SN - 1051-0761, 1051-0761 KW - Mexico KW - Ecology Abstracts KW - Tropical environment KW - Climatic changes KW - Carbon cycle KW - Nutrient cycles KW - Land use KW - Models KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17637527?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Applications&rft.atitle=Tropical+Mexico%27s+recent+land-use+change%3A+A+region%27s+contribution+to+the+global+carbon+cycle&rft.au=Cairns%2C+MA%3BHaggerty%2C+P+K%3BAlvarez%2C+R%3BDe+Jong%2C+BHJ%3BOlmsted%2C+I&rft.aulast=Cairns&rft.aufirst=MA&rft.date=2000-01-01&rft.volume=10&rft.issue=5&rft.spage=1426&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Models; Tropical environment; Land use; Climatic changes; Nutrient cycles; Carbon cycle ER - TY - JOUR T1 - Dermal Absorption of Pesticides in the Rat AN - 17623165; 4768137 AB - The Office of Pesticide Programs (OPP) of the Environmental Protection Agency has developed a standard protocol for evaluating the dermal penetration of pesticides in the rat. This protocol was formalized in 1994 as a guideline for Dermal Absorption Studies of Pesticides. To date, in excess of 263 studies on the dermal absorption of over 160 pesticide chemicals have been submitted to OPP as part of the pesticide registration and risk assessment processes. The majority of these studies has been performed according to the OPP standard protocol in the rat. These studies constitute the largest database in existence on the dermal absorption of a wide variety of chemicals using a standard protocol. From this standard protocol it is possible to describe, quantitatively with dose and time, the entrance of a chemical into and penetration through the mammalian epidermis into the systemic circulation, its concentration in blood and in the body, and its excretion in urine and feces. This article describes the experimental design of the standard protocol and presents examples of the types of pesticides studied: pesticides that are neither volatile nor damage the skin (the most common type), volatile pesticides, and pesticides that damage the skin. Examples are selected to illustrate differences in the pattern of dermal uptake and subsequent absorption into the systemic compartment among and within the three classes. JF - American Industrial Hygiene Association Journal AU - Zendzian, R P AD - Health Effects Division (7509C), Office of Pesticide Programs, U.S. Environmental Protection Agency, Washington, DC 20460, USA, zendzian.robert@epamail.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 473 EP - 483 VL - 61 IS - 4 SN - 0002-8894, 0002-8894 KW - USA, Environmental Protection Agency KW - rats KW - Toxicology Abstracts KW - Risk assessment KW - Standardization KW - Databases KW - Skin KW - Pesticides KW - Government policy KW - X 24230:Legislation & recommended standards KW - X 24133:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17623165?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Industrial+Hygiene+Association+Journal&rft.atitle=Dermal+Absorption+of+Pesticides+in+the+Rat&rft.au=Zendzian%2C+R+P&rft.aulast=Zendzian&rft.aufirst=R&rft.date=2000-01-01&rft.volume=61&rft.issue=4&rft.spage=473&rft.isbn=&rft.btitle=&rft.title=American+Industrial+Hygiene+Association+Journal&rft.issn=00028894&rft_id=info:doi/10.1202%2F0002-8894%282000%290612.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Risk assessment; Pesticides; Skin; Databases; Standardization; Government policy DO - http://dx.doi.org/10.1202/0002-8894(2000)061<0473:DAOPIT>2.0.CO;2 ER - TY - JOUR T1 - A caridean grass shrimp (Palaemonetes pugio Holthius) as an indicator of sediment quality in Florida coastal areas affected by point and nonpoint source contamination AN - 17615046; 4756451 AB - Grass shrimp are one of the more widely distributed estuarine benthic organisms along the Gulf of Mexico and Atlantic coasts, but they were used infrequently in contaminated sediment assessments. Early-life stages of caridean grass shrimp, Palaemonetes pugio (Holthius), were used in this baseline survey as indicators of sediment pore water quality for several Florida coastal areas affected by nonpoint and point sources of contamination. Static toxicity tests were conducted using 24 well culture plates assessing embryo and larval survival after 12 days exposure to pore water (interstitial water). Acute toxicity was observed in 28% of pore waters (15 of 53 samples) suggesting that sediment contamination was not widespread in the study area based on the response of this species. When toxicity was observed, grass shrimp pore water toxicity test was usually a more sensitive indicator of contamination than solid-phase tests conducted with the epibenthic invertebrate, Mysidopsis bahia. P. pugio embryos were more sensitive than larval form and response of different brood stocks usually were similar (P>0.05) when exposed to same pore waters. Based on all considerations, this early-life stage toxicity test shows promise being useful detecting pore water toxicity. This conclusion is based on availability of a test methodology which requires minimal space and effort, and the test species widespread geographical distribution. However, there are several remaining research needs, including the important issue of its sensitivity relative to that for other pore water test species as well as for species used in solid-phase toxicity tests. JF - Environmental Toxicology AU - Lewis, MA AU - Foss, S S AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Gulf Ecology Division, 1 Sabine Island Drive, Gulf Breeze, FL 32561-5299, USA, lewis.Michael@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 234 EP - 242 VL - 15 IS - 3 SN - 1520-4081, 1520-4081 KW - Daggerblade grass shrimp KW - Palaemonetes pugio KW - USA, Florida KW - Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Aqualine Abstracts; Pollution Abstracts KW - Water Pollution KW - Aquatic organisms KW - Shrimp KW - Contamination KW - Coastal Waters KW - Pollution (Nonpoint sources) KW - Embryonic Growth Stage KW - Larval development KW - Toxicity tests KW - Sediment Contamination KW - Embryos KW - Pollution indicators KW - Bioindicators KW - ASW, USA, Florida KW - Sediment pollution KW - Nonpoint Pollution Sources KW - Interstitial waters KW - Interstitial Water KW - Crustaceans (Decapod) (Shrimps and prawns) KW - Coastal waters KW - Contaminated sediments KW - Coastal zone KW - Bioassays KW - Pollution (Water) KW - Toxicity testing KW - Indicator species KW - P 1000:MARINE POLLUTION KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - X 24221:Toxicity testing KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17615046?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology&rft.atitle=A+caridean+grass+shrimp+%28Palaemonetes+pugio+Holthius%29+as+an+indicator+of+sediment+quality+in+Florida+coastal+areas+affected+by+point+and+nonpoint+source+contamination&rft.au=Lewis%2C+MA%3BFoss%2C+S+S&rft.aulast=Lewis&rft.aufirst=MA&rft.date=2000-01-01&rft.volume=15&rft.issue=3&rft.spage=234&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology&rft.issn=15204081&rft_id=info:doi/10.1002%2F1522-7278%282000%2915%3A33.0.CO%3B2-E LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Larval development; Toxicity tests; Indicator species; Bioassays; Embryos; Coastal waters; Toxicity testing; Pollution indicators; Bioindicators; Aquatic organisms; Coastal zone; Contamination; Pollution (Nonpoint sources); Interstitial waters; Crustaceans (Decapod) (Shrimps and prawns); Pollution (Water); Contaminated sediments; Water Pollution; Shrimp; Coastal Waters; Nonpoint Pollution Sources; Sediment Contamination; Interstitial Water; Embryonic Growth Stage; ASW, USA, Florida DO - http://dx.doi.org/10.1002/1522-7278(2000)15:3<234::AID-TOX8>3.0.CO;2-E ER - TY - JOUR T1 - Effect of Vallisneria americana (L.) on community structure and ecosystem function in lake mesocosms AN - 17604805; 4740405 AB - Submerged aquatic vegetation is known as a key structural component and regulator in ecosystems. In this mesocosm study, we examine community- and system-level responses to the presence of Vallisneria americana (L), a deep-rooted macrophyte. Phytoplankton, bacteria and filamentous algal biomasses were significantly lowered in the presence of V. americana. In addition, mesocosms with macrophytes had significantly reduced porewater phosphate and iron, water column dissolved organic carbon and total suspended solids, but elevated sediment redox. All mesocosms were net autotrophic (gross primary production/respiration >1). Compared to the macrophyte treatments, the control mesocosms had lower diel net primary production (NPP) midway through the experiment (d 16), but at the end of the experiment (d 36), the controls had the higher values, presumably due to increased filamentous algae. NPP and NPP /R were constant in the macrophyte treatments, whereas NPP/R increased significantly from middle to end of the experiment in the controls. We show that community and system-level responses to the presence of V. americana have significant consequences on system structure and function. JF - Hydrobiologia AU - Wigand, C AU - Wehr, J AU - Limburg, K AU - Gorham, B AU - Longergan, S AU - Findlay, S AD - EPA-NHEERL, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI 02882, U.S.A., wigand.cathleen@epamail.epa.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 137 EP - 146 PB - Kluwer Academic Publishers VL - 418 IS - 1 SN - 0018-8158, 0018-8158 KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Lakes KW - Community composition KW - Freshwater lakes KW - Ecosystems KW - Community structure KW - Vallisneria americana KW - Phytoplankton KW - Dissolved organic carbon KW - Mesocosms KW - D 04310:Freshwater KW - Q1 08463:Habitat community studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17604805?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrobiologia&rft.atitle=Effect+of+Vallisneria+americana+%28L.%29+on+community+structure+and+ecosystem+function+in+lake+mesocosms&rft.au=Wigand%2C+C%3BWehr%2C+J%3BLimburg%2C+K%3BGorham%2C+B%3BLongergan%2C+S%3BFindlay%2C+S&rft.aulast=Wigand&rft.aufirst=C&rft.date=2000-01-01&rft.volume=418&rft.issue=1&rft.spage=137&rft.isbn=&rft.btitle=&rft.title=Hydrobiologia&rft.issn=00188158&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Community composition; Ecosystems; Freshwater lakes; Mesocosms; Lakes; Community structure; Phytoplankton; Dissolved organic carbon; Vallisneria americana ER - TY - JOUR T1 - Comparison of scientific findings from major ozone field studies in North America and Europe AN - 17603307; 4714533 AB - During the past decade, nearly 600 million dollars were invested in more than 30 major field studies in North America and Europe examining tropospheric ozone chemistry, meteorology, precursor emissions, and modeling. Most of these studies were undertaken to provide new or refined knowledge about ozone accumulation and to assist in the development of economical and effective emissions management practices for ozone. In this paper, we describe a selection of field research programs conducted under a wide range of geographical and climatological conditions in North America and Europe. The designs of these studies were generally similar, employing a combination of ground-based observation networks, upper-air sampling, and meteorological observations. Key findings include: (1) reaffirmation that tropospheric ozone is a multi-scale phenomenon extending to continental boundaries; (2) aerometric conditions aloft are important to ground-level ozone; (3) biogenic sources make important contributions to VOC and NO sub(x) emissions in parts of eastern North America and southern Europe; (4) emissions estimates are among the more uncertain components of predictive models for ozone; (5) recirculating flow over complex terrain and large water bodies are universally important factors affecting accumulation of ozone at the ground; (6) nonlinearities in ozone response to precursor changes create important degrees of freedom in management strategies - VOC and NO sub(x) sensitivities vary extensively in urban and rural areas, making decisions about emissions management complicated; (7) measurement methods for many precursors, intermediates, and products of photochemical reactions have improved greatly; and (8) additional analysis and interpretation of existing data from many of these field studies should pay handsome dividends at relatively modest cost. JF - Atmospheric Environment AU - Solomon, P AU - Cowling, E AU - Hidy, G AU - Furiness, C AD - US Environmental Protection Agency, Research Triangle Park, NC, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 1885 EP - 1920 VL - 34 IS - 12-14 SN - 1352-2310, 1352-2310 KW - Europe KW - North America KW - Pollution Abstracts KW - Nitrogen oxides KW - Pollution surveys KW - Economics KW - Atmospheric chemistry KW - Meteorology KW - Volatile organic compounds KW - Ozone KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17603307?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Comparison+of+scientific+findings+from+major+ozone+field+studies+in+North+America+and+Europe&rft.au=Solomon%2C+P%3BCowling%2C+E%3BHidy%2C+G%3BFuriness%2C+C&rft.aulast=Solomon&rft.aufirst=P&rft.date=2000-01-01&rft.volume=34&rft.issue=12-14&rft.spage=1885&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2FS1352-2310%2899%2900453-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Atmospheric chemistry; Ozone; Economics; Pollution surveys; Volatile organic compounds; Nitrogen oxides; Meteorology DO - http://dx.doi.org/10.1016/S1352-2310(99)00453-7 ER - TY - JOUR T1 - A test of watershed classification systems for ecological risk assessment AN - 17599776; 4711232 AB - To facilitate extrapolation among watersheds, ecological risk assessments should be based on a model of underlying factors influencing watershed response, particularly vulnerability. We propose a conceptual model of landscape vulnerability to serve as a basis for watershed classification systems to predict resistance and resilience of aquatic ecosystems to hydrology-related stressors. Watershed area, storage capacity, channel slope, and soil permeability determine sensitivity of lotic systems to stressors associated with land-use activities that impact hydrologic regimes. Natural hydrologic disturbance regimes also influence the resilience of aquatic systems by selecting for life history strategies associated with rapid recolonization following disturbance. Variability in some of these physiographic driving factors can be partitioned by landscape classification schemes such as the U.S. Forest Service Ecological Unit Classification System, while others (watershed storage) may explain remaining variability within landscape units. We are conducting a comparative watershed study to examine simple and interactive effects of physiographic units, watershed storage (lakes + wetlands), and land-clearing activities in watersheds surrounding the western arm of Lake Superior. Initial results for second-order watersheds indicate significant watershed class effects on baseflow water quality, percent motile biraphid diatom species in periphyton communities, habitat quality, and fish community integrity. Future studies have been designed to examine cumulative effects downstream. JF - Environmental Toxicology and Chemistry AU - Detenbeck, N E AU - Batterman, S L AU - Brady, V J AU - Brazner, J C AU - Snarski, V M AU - Taylor, D L AU - Thompson, JA AU - Arthur, J W AD - U.S. Environmental Protection Agency, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, Minnesota 55804, USA, detenbeck.naomi@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1174 EP - 1181 VL - 19 IS - 4 SN - 0730-7268, 0730-7268 KW - North America, Superior L. KW - community composiiton KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Risk Abstracts KW - Land Use KW - Risk assessment KW - Classification systems KW - Environmental impact KW - Stress KW - Watershed Management KW - Freshwater KW - Ecological Effects KW - Habitat KW - Watersheds KW - Water quality KW - Land use KW - Ecosystem disturbance KW - Storage KW - Ecology KW - Classification KW - Community structure KW - Hydrology KW - Hazard assessment KW - P 9000:ENVIRONMENTAL ACTION KW - Q5 08502:Methods and instruments KW - SW 4020:Evaluation process KW - R2 23050:Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17599776?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=A+test+of+watershed+classification+systems+for+ecological+risk+assessment&rft.au=Detenbeck%2C+N+E%3BBatterman%2C+S+L%3BBrady%2C+V+J%3BBrazner%2C+J+C%3BSnarski%2C+V+M%3BTaylor%2C+D+L%3BThompson%2C+JA%3BArthur%2C+J+W&rft.aulast=Detenbeck&rft.aufirst=N&rft.date=2000-01-01&rft.volume=19&rft.issue=4&rft.spage=1174&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Assessing Ecosystem Vulnerability. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Classification systems; Environmental impact; Water quality; Watersheds; Ecosystem disturbance; Hazard assessment; Risk assessment; Ecology; Community structure; Stress; Hydrology; Habitat; Land use; Storage; Land Use; Classification; Watershed Management; Ecological Effects; Freshwater ER - TY - JOUR T1 - Can biological assessments discriminate among types of stress? A case study from the Eastern Corn Belt Plains ecoregion AN - 17599737; 4711223 AB - We investigated the feasibility of using the structure of fish and benthic macroinvertebrate communities to distinguish among major types of stressors (e.g., siltation, nutrient enrichment, and stream structural degradation) using spatially and temporally matched data on stressors and responses. The 19 stressor variables addressed stream chemistry and in-stream habitat and included biological oxygen demand (BOD), total suspended solids, nitrogen, phosphorus, and components of the Qualitative Habitat Evaluation Index. The 42 response variables addressed fish and invertebrate community structure and included many of the component metrics of the Index of Biological Integrity and the Invertebrate Community Index as well as variables specifically calculated for this project. All data were collected between 1988 and 1994 by the Ohio Environmental Protection Agency in the Eastern Corn Belt Plains ecoregion. Prior to analysis, variables were transformed to near normality, and variables significantly correlated with drainage area were fit to regression models and the resulting residuals used in the analyses. Multivariate analyses included factor and discriminant analysis. The first six stressor factors explained 69% of the variation. Discriminant functions formed using the response variables significantly separated site clusters classified into high, medium, and low categories along stressor gradients. Both fish and macroinvertebrate variables were important in distinguishing site categories. For example, percentage Tanytarsini midges and percentage Glyptotendipes were important in distinguishing sites having high and low BOD. Percentage darters was associated with sites having high scores for stream corridor structure and low concentrations of inorganic nutrients, and percentage roundbodied suckers was associated with sites having low BOD and low concentrations of zinc and lead. These results indicate that diagnostic models may be developed that will be useful for site-specific and regional assessments. JF - Environmental Toxicology and Chemistry AU - Norton, S B AU - Cormier, S M AU - Smith, M AU - Jones, R C AD - U.S. Environmental Protection Agency, National Center for Environmental Assessment, Washington, DC 20460, USA, norton.susan@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1113 EP - 1119 VL - 19 IS - 4 SN - 0730-7268, 0730-7268 KW - USA, Ohio KW - USA, Ohio, Eastern Corn Belt Plains KW - bichemical oxygen demand KW - maize KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Toxicology Abstracts; Entomology Abstracts; Ecology Abstracts KW - Risk assessment KW - Aquatic organisms KW - Regional Analysis KW - Pollution effects KW - Macroinvertebrates KW - Benthic Fauna KW - Freshwater fish KW - Streams KW - Multivariate Analysis KW - Midges KW - Models KW - Pisces KW - Ecology KW - Assessments KW - Zea mays KW - Multivariate analysis KW - Regional planning KW - Environmental stress KW - Pollution indicators KW - Bioindicators KW - Environmental monitoring KW - Agricultural ecosystems KW - Case Studies KW - Environmental impact KW - Stress KW - Biochemical Oxygen Demand KW - Ecosystem disturbance KW - Community structure KW - Biochemical oxygen demand KW - Zoobenthos KW - Nutrient concentrations KW - Benthos KW - X 24240:Miscellaneous KW - P 9000:ENVIRONMENTAL ACTION KW - D 04001:Methodology - general KW - SW 3030:Effects of pollution KW - Q5 08502:Methods and instruments KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17599737?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Can+biological+assessments+discriminate+among+types+of+stress%3F+A+case+study+from+the+Eastern+Corn+Belt+Plains+ecoregion&rft.au=Norton%2C+S+B%3BCormier%2C+S+M%3BSmith%2C+M%3BJones%2C+R+C&rft.aulast=Norton&rft.aufirst=S&rft.date=2000-01-01&rft.volume=19&rft.issue=4&rft.spage=1113&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Assessing Ecosystem Vulnerability. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Environmental impact; Freshwater fish; Pollution indicators; Ecosystem disturbance; Risk assessment; Agricultural ecosystems; Community structure; Multivariate analysis; Pollution effects; Environmental stress; Zoobenthos; Benthos; Models; Bioindicators; Ecology; Aquatic organisms; Stress; Regional planning; Biochemical oxygen demand; Nutrient concentrations; Streams; Regional Analysis; Assessments; Case Studies; Benthic Fauna; Macroinvertebrates; Biochemical Oxygen Demand; Midges; Multivariate Analysis; Pisces; Zea mays ER - TY - JOUR T1 - Using regional exposure criteria and upstream reference data to characterize spatial and temporal exposures to chemical contaminants AN - 17599254; 4711225 AB - Analyses of biomarkers in fish were used to evaluate exposures among locations and across time. Two types of references were used for comparison, an upstream reference sample remote from known point sources and regional exposure criteria derived from a baseline of fish from reference sites throughout Ohio, USA. Liver, bile, and blood were sampled from white suckers (Catostomus commersoni) and common carp (Cyprinus carpio) collected during 1993 and 1996 in the Ottawa River near Lima, Ohio. Levels of exposure were measured for petroleum by naphthalene-type metabolites, combustion by-products by benzo[a]pyrene type metabolites, coplanar organic compounds by ethoxyresorufin-O-deethylase (EROD) activity, and urea by blood urea nitrogen (BUN) levels. The four biomarkers analyzed proved effective in determining differences between reference and polluted sampling sites, between geographically close (<0.5 km) sites, and between sampling years at sites common in both years. Calculated exposure criteria levels of the polycyclic aromatic hydrocarbon bile metabolites were found to be a conservative approximation of levels from a designated reference site and could thereby permit comparison of biomarker levels of fish from the Ottawa River to a regional reference level. Polycyclic aromatic hydrocarbon bile metabolite and EROD activity levels were more reflective of spatial patterns of contamination than BUN, although all biomarkers indicated differences over time. Biomarkers from white suckers seemed to be more responsive in detecting changes in contaminant levels than the same biomarkers from common carp. Lower levels in 1996 of all biomarkers at many sites suggested lower exposures than in 1993 and could be indicative of some improvement over the period. JF - Environmental Toxicology and Chemistry AU - Cormier, S M AU - Lin, ELC AU - Millward, M R AU - Schubauer-Berigan, M K AU - Williams, DE AU - Subramanian, B AU - Sanders, R AU - Counts, B AU - Altfater, D AD - U.S. Environmental Protection Agency, 26 West Martin Luther King Drive, Cincinnati, Ohio 45268, USA, cormier.susan@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1127 EP - 1135 VL - 19 IS - 4 SN - 0730-7268, 0730-7268 KW - Catostomus commersoni KW - Common carp KW - Cyprinus carpio KW - EROD activity KW - USA, Ohio, Ottawa R. KW - White sucker KW - biomarkers KW - exposure levels KW - Pollution Abstracts; Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Historical account KW - Contamination KW - Pollution effects KW - Metabolites KW - Spatial Distribution KW - Freshwater fish KW - Petroleum KW - Upstream KW - Aromatic hydrocarbons KW - Chemical pollution KW - Population Exposure KW - Pollution indicators KW - Temporal Distribution KW - Freshwater pollution KW - Bioindicators KW - Environmental monitoring KW - Polycyclic aromatic hydrocarbons KW - Hydrocarbons KW - Biological Sampling KW - Water pollution KW - Bioassays KW - Water Pollution Effects KW - Liver KW - Fish KW - Blood analysis KW - Indicator species KW - X 24190:Polycyclic hydrocarbons KW - P 2000:FRESHWATER POLLUTION KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17599254?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Using+regional+exposure+criteria+and+upstream+reference+data+to+characterize+spatial+and+temporal+exposures+to+chemical+contaminants&rft.au=Cormier%2C+S+M%3BLin%2C+ELC%3BMillward%2C+M+R%3BSchubauer-Berigan%2C+M+K%3BWilliams%2C+DE%3BSubramanian%2C+B%3BSanders%2C+R%3BCounts%2C+B%3BAltfater%2C+D&rft.aulast=Cormier&rft.aufirst=S&rft.date=2000-01-01&rft.volume=19&rft.issue=4&rft.spage=1127&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Assessing Ecosystem Vulnerability. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Bioassays; Aromatic hydrocarbons; Pollution effects; Pollution indicators; Water pollution; Indicator species; Polycyclic aromatic hydrocarbons; Petroleum; Chemical pollution; Freshwater pollution; Environmental monitoring; Bioindicators; Historical account; Contamination; Liver; Freshwater fish; Blood analysis; Hydrocarbons; Biological Sampling; Water Pollution Effects; Upstream; Fish; Metabolites; Population Exposure; Spatial Distribution; Temporal Distribution ER - TY - JOUR T1 - Diel temperature effects on the exchange of elemental mercury between the atmosphere and underlying waters AN - 17598826; 4711234 AB - Because of the high biomagnification potential of the monomethyl species, mercury contamination has emerged as a significant ecological risk in numerous water bodies throughout the world. Of increasing interest during the past few decades is that atmospheric processes play a significant role in the environmental transport of this element. Ample scientific literature demonstrates that elemental mercury evasion from natural waters displays a diel cycle; evasion rates measured during the day are typically two to three times the values observed at night. The traditional explanation for this phenomenon is that water column elemental mercury concentrations display a diel cycle, with elemental mercury concentrations occurring at their highest values during the day. The present study tests the hypothesis that diel atmospheric temperature cycles also may play a significant role in diel mercury evasion rates. A chemical potential model is used to provide a thermodynamic framework for the development of nonisothermal Henry's law constants to describe atmospheric-aqueous partitioning of elemental mercury under temperature disequilibrium conditions. The effects of temperature disequilibrium on aqueous diffusive layer transport properties also are examined. Findings suggest that under one set of real-world temperature disequilibrium conditions, diel evasion rate variations of up to 44% can be anticipated. Given the inability to consider the effects of temperature disequilibrium on aqueous diffusive layer thicknesses, the actual effects of temperature disequilibrium on rates of mercury evasion may exceed this value. Finally, the temperature disequilibrium phenomenon may be most significant for atmospheric-aqueous exchange of trace toxicants that do not experience dynamic environmental speciation behavior. JF - Environmental Toxicology and Chemistry AU - Loux, N T AD - U.S. Environmental Protection Agency, Athens, Georgia 30605-2700, USA, loux.nick@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1191 EP - 1198 VL - 19 IS - 4 SN - 0730-7268, 0730-7268 KW - Oceanic Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Contamination KW - Air-water Interfaces KW - Diurnal Distribution KW - Marine environment KW - Ocean-atmosphere system KW - Brackishwater environment KW - Temperature Effects KW - Chemical pollution KW - Atmospheric boundary layer KW - Air-water exchanges KW - Temperature effects KW - Diurnal variations KW - Thermodynamics KW - Model Studies KW - Risk KW - Equilibrium KW - Air-water interactions KW - Mercury KW - Chemical pollutants KW - Q5 08503:Characteristics, behavior and fate KW - P 0000:AIR POLLUTION KW - SW 3020:Sources and fate of pollution KW - O 4060:Pollution - Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17598826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Diel+temperature+effects+on+the+exchange+of+elemental+mercury+between+the+atmosphere+and+underlying+waters&rft.au=Loux%2C+N+T&rft.aulast=Loux&rft.aufirst=N&rft.date=2000-01-01&rft.volume=19&rft.issue=4&rft.spage=1191&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Assessing Ecosystem Vulnerability. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Temperature effects; Diurnal variations; Marine environment; Ocean-atmosphere system; Brackishwater environment; Mercury; Atmospheric boundary layer; Chemical pollutants; Air-water exchanges; Thermodynamics; Contamination; Air-water interactions; Chemical pollution; Risk; Equilibrium; Air-water Interfaces; Temperature Effects; Diurnal Distribution; Model Studies ER - TY - JOUR T1 - Estimation of exposure criteria values for biliary polycyclic aromatic hydrocarbon metabolite concentrations in white suckers (Catostomus commersoni) AN - 17598802; 4711224 AB - A methodology was developed for deriving quantitative exposure criteria useful for comparing a site or a watershed to a reference condition and for defining the occurrence of extreme exposures. The prototype method used indicators of exposures to oil contamination and combustion by-products, naphthalene (NAPH)-type and benzo[a]pyrene (BaP)-type biliary metabolites from white suckers (Catostomus commersoni). The fish were collected from first- to third-order streams in the Regional Environmental Monitoring Assessment Program (REMAP) study of the Eastern Corn Belt Plains ecoregion at randomly selected sites and from third- or higher-order streams in conjunction with the Ohio Environmental Protection Agency (OEPA) Biomonitoring Program, which sampled sites of concern and reference sites selected by ecologists. The polycyclic aromatic hydrocarbon metabolites were measured using fixed-wavelength fluorescence with excitation/emission pairs at 290/335 nm for NAPH-type and 380/430 nm for BaP-type metabolites. Exposure criteria values were selected for each type of metabolite for both the REMAP study and the OEPA reference sites following the recommendations of the International Federation of Clinical Chemistry. Exposure criteria derived for each metabolite were not significantly different for REMAP and OEPA reference sites. More than one half of the OEPA nonreference sites were found to be contaminated, exceeding criteria values for both types of metabolites. This method for finding meaningful exposure criteria can be used to develop criteria of exposure to other contaminants for other wildlife and other ecosystems. JF - Environmental Toxicology and Chemistry AU - Cormier, S M AU - Lin, ELC AU - Fulk, F AU - Subramanian, B AD - U.S. Environmental Protection Agency, 26 West Martin Luther King Drive, Cincinnati, Ohio 45268, USA, cormier.susan@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1120 EP - 1126 VL - 19 IS - 4 SN - 0730-7268, 0730-7268 KW - Catostomus commersoni KW - USA, Ohio, Eastern Corn Belt Plains KW - White sucker KW - benzo(a)pyrene KW - Pollution Abstracts; Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Aquatic organisms KW - Pollution monitoring KW - Ecosystems KW - Contamination KW - Combustion products KW - Indicators KW - Pollution effects KW - Metabolites KW - Freshwater fish KW - Watersheds KW - Aromatic hydrocarbons KW - Quantitative Analysis KW - Oil pollution KW - Population Exposure KW - Pollution indicators KW - Bioindicators KW - Environmental monitoring KW - Polycyclic aromatic hydrocarbons KW - Fluorescence KW - Hydrocarbons KW - Estimating KW - Pollution levels KW - Naphthalene KW - Exposure tolerance KW - Aromatic Compounds KW - USA, Ohio KW - Sucker KW - X 24190:Polycyclic hydrocarbons KW - X 24222:Analytical procedures KW - P 2000:FRESHWATER POLLUTION KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17598802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Estimation+of+exposure+criteria+values+for+biliary+polycyclic+aromatic+hydrocarbon+metabolite+concentrations+in+white+suckers+%28Catostomus+commersoni%29&rft.au=Cormier%2C+S+M%3BLin%2C+ELC%3BFulk%2C+F%3BSubramanian%2C+B&rft.aulast=Cormier&rft.aufirst=S&rft.date=2000-01-01&rft.volume=19&rft.issue=4&rft.spage=1120&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Assessing Ecosystem Vulnerability. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Aromatic hydrocarbons; Pollution effects; Metabolites; Pollution indicators; Exposure tolerance; Pollution monitoring; Polycyclic aromatic hydrocarbons; Pollution levels; Oil pollution; Watersheds; Environmental monitoring; Bioindicators; Aquatic organisms; Contamination; Combustion products; Naphthalene; Freshwater fish; Aromatic Compounds; Fluorescence; Ecosystems; Hydrocarbons; Estimating; Indicators; Quantitative Analysis; Population Exposure; Sucker; USA, Ohio ER - TY - JOUR T1 - Using historical biological data to evaluate status and trends in the Big Darby Creek watershed (Ohio, USA) AN - 17598650; 4711221 AB - Assessment of watershed ecological status and trends is challenging for managers who lack randomly or consistently sampled data, or monitoring programs developed from a watershed perspective. This study investigated analytical approaches for assessment of status and trends using data collected by the Ohio Environmental Protection Agency as part of state requirements for reporting stream quality and managing discharge permits. Fish and benthic macroinvertebrate metrics collected during three time periods (1979-1981, 1986-1989, 1990-1993) were analyzed for the mainstem of Big Darby Creek, a high-quality warm-water stream in central Ohio, USA. Analysis of variance of transformed metrics showed significant differences among time periods for six fish metrics. In addition, significant positive linear trends were observed for four metrics plus the index of biotic integrity score, and negative linear trends for two fish metrics. An analysis of a subset of sites paired by location and sampled over the three periods reflected findings using all available data for the mainstem. In particular, mean estimates were very similar between the reduced and full data sets, whereas standard error estimates were much greater in the reduced subset. Analysis of serial autocorrelation patterns among the fish metrics over the three time periods suggests changes in the nature of stressors over time. A comparison within the most recent time period showed significantly better condition for Big Darby Creek mainstem than for Hellbranch Run (the easternmost subwatershed), after adjusting for watershed size. The consistency of paired and nonrandomized results suggested that either type of data might be judiciously used for this watershed assessment. Results indicated that overall biological condition of the mainstem of the Big Darby Creek watershed has significantly improved since the early 1980s. JF - Environmental Toxicology and Chemistry AU - Schubauer-Berigan, M K AU - Smith, M AU - Hopkins, J AU - Cormier, S M AD - U.S. Environmental Protection Agency, 26 West Martin Luther King Drive, Cincinnati, Ohio 45268, USA, cormier.susan@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1097 EP - 1105 VL - 19 IS - 4 SN - 0730-7268, 0730-7268 KW - USA, Ohio, Big Darby Creek KW - Pollution Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Environmental monitoring KW - Historical account KW - Analysis of Variance KW - Estimating KW - Environmental impact KW - Pollution effects KW - Macrofauna KW - Errors KW - Watersheds KW - Water quality KW - Freshwater fish KW - Ecosystem disturbance KW - Ecology KW - Pisces KW - Assessments KW - Data Acquisition KW - State Jurisdiction KW - Biological Properties KW - Regional planning KW - Fish KW - Temporal Distribution KW - Q5 08503:Characteristics, behavior and fate KW - P 9000:ENVIRONMENTAL ACTION KW - Q1 08463:Habitat community studies KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17598650?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Using+historical+biological+data+to+evaluate+status+and+trends+in+the+Big+Darby+Creek+watershed+%28Ohio%2C+USA%29&rft.au=Schubauer-Berigan%2C+M+K%3BSmith%2C+M%3BHopkins%2C+J%3BCormier%2C+S+M&rft.aulast=Schubauer-Berigan&rft.aufirst=M&rft.date=2000-01-01&rft.volume=19&rft.issue=4&rft.spage=1097&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Assessing Ecosystem Vulnerability. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Environmental impact; Pollution effects; Freshwater fish; Water quality; Watersheds; Ecosystem disturbance; Environmental monitoring; Pisces; Ecology; Historical account; Regional planning; Macrofauna; Analysis of Variance; Assessments; State Jurisdiction; Data Acquisition; Estimating; Biological Properties; Fish; Errors; Temporal Distribution ER - TY - JOUR T1 - Methodology for the evaluation of cumulative episodic exposure to chemical stressors in aquatic risk assessment AN - 17598149; 4711236 AB - An ecological risk assessment method was developed to evaluate the magnitude, duration, and episodic nature of chemical stressors on aquatic communities. The percent of an ecosystem's species at risk from a designated chemical exposure scenario is generated. In effects assessment, probabilistic extrapolation methods are used to generate estimated safe concentrations (ESCs) for an ecosystem using laboratory toxicity test results. Fate and transport modeling is employed to generate temporal stressor concentration profiles. In risk characterization, area under the curve integration is performed on predicted exposure concentration profiles to calculate a cumulative exposure concentration (CEC) for the exposure event. A correction is made to account for the allowable exposure duration to the stressor ESC. Finally, the CEC is applied to the extrapolation model (curve) of the stressor to predict percent species at risk to the episodic exposure. The method may be used for either prospective or retrospective risk assessments. The results of a retrospective risk assessment performed on the Leadenwah Creek, South Carolina, USA, estuarine community are presented as a case study. The creek experienced periodic episodes of pesticide-contaminated agricultural runoff from 1986 through 1989. Although limited biological data were available for method validation, the risk estimates compared well with the Leadenwah Creek in situ bioassay results. JF - Environmental Toxicology and Chemistry AU - Morton, M G AU - Dickson, K L AU - Waller, W T AU - Acevedo, M F AU - Mayer, FL Jr AU - Ablan, M AD - U.S. Environmental Protection Agency Region 6, 1445 Ross Avenue, Dallas, Texas 75202, USA, morton.michael@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1213 EP - 1221 VL - 19 IS - 4 SN - 0730-7268, 0730-7268 KW - Methodology KW - Periodic episodes KW - USA, South Carolina, Leadenwah Creek KW - exposure levels KW - Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Risk Abstracts; Pollution Abstracts; Toxicology Abstracts KW - Risk assessment KW - Aquatic organisms KW - Agricultural Runoff KW - Agricultural pollution KW - Pollution effects KW - Freshwater KW - Toxicity tests KW - Risks KW - Bioassay KW - Assessments KW - Pollutants KW - Chemical pollution KW - Agricultural runoff KW - Testing Procedures KW - Marine KW - ANW, USA, South Carolina, Leadenwah Creek KW - Brackishwater pollution KW - Estuaries KW - Brackish KW - Stress KW - Toxicity KW - Aquatic ecosystems KW - Ecosystem disturbance KW - Risk KW - Bioassays KW - Water Pollution Effects KW - Pesticides KW - Analytical techniques KW - Chemical pollutants KW - R2 23040:Biological KW - X 24222:Analytical procedures KW - P 2000:FRESHWATER POLLUTION KW - O 4080:Pollution - Control and Prevention KW - SW 3030:Effects of pollution KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17598149?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Methodology+for+the+evaluation+of+cumulative+episodic+exposure+to+chemical+stressors+in+aquatic+risk+assessment&rft.au=Morton%2C+M+G%3BDickson%2C+K+L%3BWaller%2C+W+T%3BAcevedo%2C+M+F%3BMayer%2C+FL+Jr%3BAblan%2C+M&rft.aulast=Morton&rft.aufirst=M&rft.date=2000-01-01&rft.volume=19&rft.issue=4&rft.spage=1213&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Assessing Ecosystem Vulnerability. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Brackishwater pollution; Agricultural pollution; Analytical techniques; Estuaries; Pesticides; Pollution effects; Chemical pollutants; Agricultural runoff; Toxicity tests; Risks; Ecosystem disturbance; Risk assessment; Bioassays; Chemical pollution; Aquatic ecosystems; Aquatic organisms; Stress; Testing Procedures; Risk; Agricultural Runoff; Pollutants; Assessments; Water Pollution Effects; Toxicity; Bioassay; ANW, USA, South Carolina, Leadenwah Creek; Marine; Brackish; Freshwater ER - TY - JOUR T1 - Ecological research in the Office of Research and Development at the U.S. Environmental Protection Agency: An overview of new directions AN - 17597702; 4711237 AB - In virtually every major environmental act, Congress has required that the U.S. Environmental Protection Agency (U.S. EPA) ensure not only that the air be safe to breathe, the water safe to drink, and the food supply free of contamination, but also that the environment be protected. In response, the U.S. EPA's Office of Research and Development (ORD) has established research to improve ecosystem risk assessment and management, identifying it as one of the highest priority research areas for investment over the next 10 years. The research is intended to provide environmental managers with new tools and flexible guidance that reflect a holistic environmental management perspective of science and that can be applied both to common and unique problems. In keeping with its responsibility to provide the U.S. EPA with science that supports a dynamic changing regulatory agenda, the ORD has set the goal of its Ecological Research Program to "provide the scientific understanding required to measure, model, maintain and/or restore, at multiple scales, the integrity and sustainability of ecosystems now, and in the future." In the context of this program, ecological integrity is defined in relative terms as the maintenance of ecosystem structure and function characteristic of a reference condition deemed appropriate for its use by society, and sustainability is defined as the ability of an ecosystem to maintain relative ecological integrity into the future. Therefore, the research program will emphasize relative risk and consider the impact of multiple stressors, at multiple scales and at multiple levels of biological organization. The program will also shift from chemical to biological and physical stressors to a far greater extent than in the past. The purpose of this paper is to provide an introduction to the U.S. EPA's changing ecological research program. JF - Environmental Toxicology and Chemistry AU - Linthurst, R A AU - Mulkey, LA AU - Slimak, M W AU - Veith, G D AU - Levinson, B M AD - National Exposure Research Laboratory, MD-75, Research Triangle Park, North Carolina 27711, USA, linthurst.rick@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1222 EP - 1229 VL - 19 IS - 4 SN - 0730-7268, 0730-7268 KW - EPA KW - US EPA KW - USA, Environmental Protection Agency KW - Water Resources Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Toxicology Abstracts KW - Risk assessment KW - Ecosystems KW - Government policy KW - Pollution effects KW - Ecological Effects KW - Risks KW - Federal Jurisdiction KW - Ecology KW - Research Priorities KW - Ecosystem management KW - Environmental Policy KW - Freshwater pollution KW - Brackishwater pollution KW - Environmental impact KW - Stress KW - Environmental Protection KW - Pollution research KW - Environmental legislation KW - Environmental protection KW - USA KW - Marine pollution KW - Reviews KW - Environment management KW - Research programs KW - X 24230:Legislation & recommended standards KW - P 9000:ENVIRONMENTAL ACTION KW - O 4090:Conservation and Environmental Protection KW - SW 4050:Water law and institutions KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17597702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Ecological+research+in+the+Office+of+Research+and+Development+at+the+U.S.+Environmental+Protection+Agency%3A+An+overview+of+new+directions&rft.au=Linthurst%2C+R+A%3BMulkey%2C+LA%3BSlimak%2C+M+W%3BVeith%2C+G+D%3BLevinson%2C+B+M&rft.aulast=Linthurst&rft.aufirst=R&rft.date=2000-01-01&rft.volume=19&rft.issue=4&rft.spage=1222&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Assessing Ecosystem Vulnerability. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Marine pollution; Brackishwater pollution; Ecosystem management; Environmental impact; Pollution effects; Environmental legislation; Risks; Environmental protection; Freshwater pollution; Risk assessment; Ecosystems; Government policy; Pollution research; Ecology; EPA; Environment management; Research programs; Research Priorities; Reviews; Environmental Policy; Stress; Environmental Protection; Ecological Effects; Federal Jurisdiction; USA ER - TY - JOUR T1 - Assessing ecological risk in watersheds: A case study of problem formulation in the Big Darby Creek watershed, Ohio, USA AN - 17597355; 4711220 AB - The Big Darby Creek watershed, a highly valued ecosystem in central Ohio, USA, threatened by intensive agriculture and suburban encroachment, served as an example of how case specifics can be applied to refine and direct the planning and problem formulation stage of the U.S. Environmental Protection Agency's ecological risk assessment framework. Big Darby Creek was selected as one of five national pilot risk assessments designed to provide specific examples of how to perform an ecological risk assessment and, at the same time, to refine and improve the assessment process. The case study demonstrates how characteristics of the watershed were used to give direction to the components of establishing goals, identifying and characterizing the resource and threats to it, selecting appropriate assessment endpoints, and developing conceptual models. The hypotheses generated in the conceptual model describe expected relationships and interactions between the ecosystem at risk, identified potential stressors, and ecological effects and set the groundwork for the analysis phase that follows problem formulation. JF - Environmental Toxicology and Chemistry AU - Cormier, S M AU - Smith, M AU - Norton, S AU - Neiheisel, T AD - U.S. Environmental Protection Agency, 26 West Martin Luther King Drive, Cincinnati, Ohio 45268, USA, cormier.susan@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1082 EP - 1096 VL - 19 IS - 4 SN - 0730-7268, 0730-7268 KW - USA, Ohio, Big Darby Creek KW - Risk Abstracts; Water Resources Abstracts; Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Risk assessment KW - Agricultural pollution KW - Environmental impact KW - Freshwater KW - Ecological Effects KW - Aquatic ecosystems KW - Watersheds KW - Models KW - Ecology KW - Hazards KW - Urban runoff KW - Risk KW - EPA KW - Planning KW - Environmental Policy KW - Regional planning KW - Environment management KW - Hazard assessment KW - Q5 08503:Characteristics, behavior and fate KW - X 24230:Legislation & recommended standards KW - P 9000:ENVIRONMENTAL ACTION KW - SW 4010:Techniques of planning KW - R2 23050:Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17597355?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Assessing+ecological+risk+in+watersheds%3A+A+case+study+of+problem+formulation+in+the+Big+Darby+Creek+watershed%2C+Ohio%2C+USA&rft.au=Cormier%2C+S+M%3BSmith%2C+M%3BNorton%2C+S%3BNeiheisel%2C+T&rft.aulast=Cormier&rft.aufirst=S&rft.date=2000-01-01&rft.volume=19&rft.issue=4&rft.spage=1082&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Assessing Ecosystem Vulnerability. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Urban runoff; Agricultural pollution; Environmental impact; Watersheds; Hazard assessment; Risk assessment; Aquatic ecosystems; Models; Hazards; Ecology; EPA; Regional planning; Environment management; Risk; Planning; Environmental Policy; Ecological Effects; Freshwater ER - TY - JOUR T1 - Hydroxyl Radical/Ozone Ratios During Ozonation Processes. II. The Effect of Temperature, pH, Alkalinity, and DOM Properties AN - 17597083; 4718558 AB - The influence of temperature, pH, alkalinity, and type and concentration of the dissolved organic matter (DOM) on the rate of ozone (O sub(3)) decomposition, O sub(3)-exposure, (radical)OH-exposure and the ratio R sub(ct) of the concentrations of (radical)OH and O sub(3) has been studied. For a standardized single ozone dose of 1 mg/L in all experiments, considerable variations in O sub(3)-exposure and (radical)OH-exposure were found. This has important implications for water treatment plants regarding the efficiency of oxidation and disinfection by O sub(3). In oligotrophic surface waters and groundwaters, minimal calibration experiments are needed to model and control the ozonation process, whereas in eutrophic surface waters more frequent measurements of O sub(3) kinetics and R sub(ct) values are required to evaluate seasonal variations. JF - Ozone: Science & Engineering AU - Elovitz AU - von Gunten, U AU - Kaiser, H-P AD - Treatment Technology Evaluation Branch, Water Supply & Water Resources Division, NRMRL, U.S. EPA, 26 West M.L. King Drive, Cincinnati, OH 45268, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 123 EP - 150 VL - 22 IS - 2 SN - 0191-9512, 0191-9512 KW - Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts KW - Disinfection KW - Surface Water KW - Hydrogen ion concentrations KW - Water treatment KW - Organic Matter KW - Alkalinity KW - Water Treatment KW - Hydroxyl KW - pH KW - Ozonation KW - Hydroxyl Radical KW - Organic matter KW - Temperature KW - Hydrogen Ion Concentration KW - Hydroxyl radicals KW - Surface water (see also Lakes, Ponds, Streams) KW - Drinking water KW - P 2000:FRESHWATER POLLUTION KW - SW 3060:Water treatment and distribution KW - AQ 00004:Water Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17597083?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ozone%3A+Science+%26+Engineering&rft.atitle=Hydroxyl+Radical%2FOzone+Ratios+During+Ozonation+Processes.+II.+The+Effect+of+Temperature%2C+pH%2C+Alkalinity%2C+and+DOM+Properties&rft.au=Elovitz%3Bvon+Gunten%2C+U%3BKaiser%2C+H-P&rft.aulast=Elovitz&rft.aufirst=&rft.date=2000-01-01&rft.volume=22&rft.issue=2&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Ozone%3A+Science+%26+Engineering&rft.issn=01919512&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ozonation; Surface Water; Water Treatment; Temperature; Hydrogen Ion Concentration; Alkalinity; Organic Matter; Disinfection; Hydroxyl Radical; Surface water (see also Lakes, Ponds, Streams); Water treatment; Hydrogen ion concentrations; Organic matter; Hydroxyl; Drinking water; pH; Hydroxyl radicals ER - TY - JOUR T1 - A review and synthesis of monoterpene speciation from forests in the United States AN - 17594628; 4714842 AB - The monoterpene composition (emission and tissue internal concentration) of major forest tree species in the United States is discussed. Of the 14 most commonly occurring compounds ( alpha -pinene, beta -pinene, Delta super(3)-carene, d-limonene, camphene, myrcene, alpha -terpinene, beta -phellandrene, sabinene, rho -cymene, ocimene, alpha -thujene, terpinolene, and gamma -terpinene), the first six are usually found to be most abundant. Expected regional variability based on the monoterpene composition fingerprints and corresponding tree species distribution and abundance is examined. In the southeast, alpha -pinene and beta -pinene seem to dominate monoterpene emissions, while in the northern forests emissions are distributed more evenly among the six major compounds. In some parts of western forests, beta -pinene and Delta super(3)-carene can be more abundant than alpha -pinene. Among the other eight compounds, beta -phellandrene and sabinene occasionally are significant percentages of expected local monoterpene emissions. Ocimene and rho -cymene are estimated to be more common in regions dominated by deciduous broadleaf forests, although total emission rates are generally lower for these forests relative to those dominated by conifers. These percentages are compared with monoterpene composition measured in ambient air at various sites. Estimated monoterpene emission composition based on local forest species composition agrees fairly well with ambient measurements for the six major compounds. The past assumption that alpha -pinene composes approximately 50% of total monoterpene emissions appears reasonable for many areas, except for possibly the northern coniferous forests and some areas in the west dominated by true firs, spruce, and western pines (lodgepole and ponderosa pines). The oxygenated monoterpenes such as camphor, bornyl acetate, and cineole often compose high percentages of the monoterpenes within plant tissues, but are much less abundant in emission samples. Even after adjusting for lower vapor pressures of these compounds, emission rates relative to the hydrocarbon monoterpenes are often lower than would be expected from their internal concentrations. More study is warranted on monoterpene emission rates and composition, especially from the spruces, true firs, hemlocks, cedars, and some deciduous species such as the maples. Non-invasive canopy level and whole ecosystem flux studies are also needed to establish uncertainty estimates for monoterpene emission models. JF - Atmospheric Environment AU - Geron, C AU - Rasmussen, R AU - Arnts, R R AU - Guenther, A AD - US Environmental Protection Agency, National Risk Management Research Laboratory, Research Triangle Park, NC 27711, USA, geron.chris@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1761 EP - 1781 VL - 34 IS - 11 SN - 1352-2310, 1352-2310 KW - monoterpenes KW - Pollution Abstracts KW - Hydrocarbons KW - Chemical speciation KW - Emissions KW - Forests KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17594628?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=A+review+and+synthesis+of+monoterpene+speciation+from+forests+in+the+United+States&rft.au=Geron%2C+C%3BRasmussen%2C+R%3BArnts%2C+R+R%3BGuenther%2C+A&rft.aulast=Geron&rft.aufirst=C&rft.date=2000-01-01&rft.volume=34&rft.issue=11&rft.spage=1761&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2FS1352-2310%2899%2900364-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: National Atmospheric Deposition Program (NADP). N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Hydrocarbons; Forests; Chemical speciation; Emissions DO - http://dx.doi.org/10.1016/S1352-2310(99)00364-7 ER - TY - JOUR T1 - Current knowledge on groundwater microbial pathogens and their control AN - 17593618; 4693414 AB - Those who drink groundwater that has not been disinfected are at increased risk of infection and disease from pathogenic microorganisms. Recent studies have shown that up to half of all US drinking-water wells tested had evidence of fecal contamination. A significant fraction of all waterborne disease outbreaks is associated with groundwater. An estimated 750,000 to 5.9 million illnesses per year result from contaminated groundwaters in the US. Mortality from these illnesses may be 1400-9400 deaths per year. Control of these pathogens starts with source-water protection activities to prevent fecal contamination of aquifers and wells. These include assessment of wellhead vulnerability to fecal contamination and correction of identified deficiencies. Correction may include control of sources or rehabilitation of the well itself. Disinfection can serve as a useful barrier and is recommended as a prudent public-health policy for all groundwater systems. JF - Hydrogeology Journal AU - Macler, BA AU - Merkle, J C AD - US Environmental Protection Agency, Region 9, 75 Hawthorne Street, WTR6 San Francisco, California 94105, USA, macler.bruce@epamail.epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 29 EP - 40 PB - Springer-Verlag (New York) VL - 8 IS - 1 SN - 1431-2174, 1431-2174 KW - Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts; Health & Safety Science Abstracts; Risk Abstracts KW - Water supplies (Potable) KW - Disinfection KW - Microbial contamination KW - Public health KW - Wells (see also Boreholes) KW - Diseases KW - Groundwater (see also Aquifers) KW - Pathogenic organism KW - Groundwater KW - Aquifers KW - Drinking Water KW - Water Pollution Prevention KW - Pathogens KW - Wells KW - Water wells KW - Diseases (see also Individual groups) KW - Drinking water KW - AQ 00001:Water Resources and Supplies KW - H 3000:Environment and Ecology KW - P 2000:FRESHWATER POLLUTION KW - SW 0840:Groundwater KW - R2 23060:Medical and environmental health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17593618?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrogeology+Journal&rft.atitle=Current+knowledge+on+groundwater+microbial+pathogens+and+their+control&rft.au=Macler%2C+BA%3BMerkle%2C+J+C&rft.aulast=Macler&rft.aufirst=BA&rft.date=2000-01-01&rft.volume=8&rft.issue=1&rft.spage=29&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Groundwater; Pathogens; Drinking Water; Disinfection; Diseases; Aquifers; Wells; Water Pollution Prevention; Groundwater (see also Aquifers); Pathogenic organism; Water supplies (Potable); Diseases (see also Individual groups); Wells (see also Boreholes); Microbial contamination; Water wells; Public health; Drinking water ER - TY - JOUR T1 - Development of a Windows-based indoor air quality simulation software package AN - 17558388; 4739600 AB - A Microsoft Windows-based indoor air quality (IAQ) simulation software package has been developed and has completed a small-scale beta test and quality assurance review. Tentatively named Simulation Tool Kit for Indoor Air Quality and Inhalation Exposure, or STKi for short, this package complements and supplements existing IAQ simulation packages and is designed mainly for advanced users. STKi Version 1 consists of a general-purpose simulation program and four stand-alone, special-purpose programs. The general-purpose program performs multi-zone, multi-pollutant simulations and allows gas-phase chemical reactions. With a large collection of models for sources, sinks, and air filters/cleaners, it can perform simulations for a wide range of indoor air pollution scenarios. The special-purpose programs implement fundamentally based models, which are often excluded from existing IAQ simulation programs despite their improved performance over statistical models. In addition to performing conventional IAQ simulation, which generates time-concentration profiles, STKi can estimate the adequate ventilation rate when certain air quality criteria are given, a unique feature useful for product stewardship and risk management. STKi will be developed in a cumulative manner. More special-purpose simulation programs will be added to the package. Key numerical methods used in STKi are discussed. Ways to convert the STKi programs into language-independent simulation modules that can be used by multi-pathway exposure models are also being explored. JF - Environmental Modelling & Software with Environment Data News AU - Guo, Z AD - US Environmental Protection Agency, National Risk Management Research Laboratory, Indoor Environment Management Branch, MD-54, Research Triangle Park, NC 27711, USA, guo.zhishi@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 403 EP - 410 VL - 15 IS - 4 SN - 1364-8152, 1364-8152 KW - Health & Safety Science Abstracts; Pollution Abstracts KW - Risk assessment KW - Inhalation KW - Ventilation KW - Indoor air pollution KW - Simulation KW - Computer applications KW - H 3000:Environment and Ecology KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17558388?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Modelling+%26+Software+with+Environment+Data+News&rft.atitle=Development+of+a+Windows-based+indoor+air+quality+simulation+software+package&rft.au=Guo%2C+Z&rft.aulast=Guo&rft.aufirst=Z&rft.date=2000-01-01&rft.volume=15&rft.issue=4&rft.spage=403&rft.isbn=&rft.btitle=&rft.title=Environmental+Modelling+%26+Software+with+Environment+Data+News&rft.issn=13648152&rft_id=info:doi/10.1016%2FS1364-8152%2800%2900020-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Indoor air pollution; Simulation; Computer applications; Ventilation; Inhalation; Risk assessment DO - http://dx.doi.org/10.1016/S1364-8152(00)00020-7 ER - TY - JOUR T1 - Nest site selection and productivity of suburban red-shouldered hawks in southern Ohio AN - 17554597; 4746227 AB - We measured nest site selection and productivity of suburban-nesting Red-shouldered Hawks (Buteo lineatus) in southwestern Ohio and rural-nesting Red-shouldered Hawks in south-central Ohio. At both the suburban and the rural locations, nest sites had greater canopy height and overall tree basal area than paired random plots, and were located closer to water than were paired random plots. Nest trees also had greater diameter and height than random plot-center trees. Reproductive rates at suburban and rural sites were similar, averaging 2.6-3.1 nestlings per successful nest. Results indicated that suburban-nesting Red-shouldered Hawks were very similar to rural-nesting hawks in both nest site selection and productivity, suggesting that Red-shouldered Hawks were habituated to their suburban environs. JF - Condor AU - Dykstra, C R AU - Hays, J L AU - Daniel, F B AU - Simon, M M AD - U.S. Environmental Protection Agency, National Exposure Research Laboratory, Cincinnati, OH 45268, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 401 EP - 408 VL - 102 IS - 2 SN - 0010-5422, 0010-5422 KW - Red-shouldered hawk KW - USA, Ohio KW - Ecology Abstracts KW - Site selection KW - Suburban environments KW - Rural environments KW - Buteo lineatus KW - Nests KW - Breeding success KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17554597?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Condor&rft.atitle=Nest+site+selection+and+productivity+of+suburban+red-shouldered+hawks+in+southern+Ohio&rft.au=Dykstra%2C+C+R%3BHays%2C+J+L%3BDaniel%2C+F+B%3BSimon%2C+M+M&rft.aulast=Dykstra&rft.aufirst=C&rft.date=2000-01-01&rft.volume=102&rft.issue=2&rft.spage=401&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Buteo lineatus; Nests; Site selection; Breeding success; Suburban environments; Rural environments ER - TY - JOUR T1 - Characterization of organic emissions from hazardous waste incineration processes under the new EPA draft Risk Burn Guidance: measurement issues AN - 17550473; 4730975 AB - EPA's recently published draft Risk Burn Guidance recommends that hazardous waste combustion facilities complete a mass balance of the total organics (TOs) that may be emitted from the combustor. TOs, consisting of three distinct fractions (volatile, semivolatile, and nonvolatile organic compounds) are determined using measurement techniques specific to the boiling point (bp) range of each component. Preliminary proof-of-concept tests have been performed to gain further knowledge of the total chromatographable organics (TCO) and gravimetric analysis (GRAV) procedures used to determine the semivolatile and nonvolatile organic fractions. A commercially prepared Method 8270 semivolatile organic standard solution, made up of 112 compounds containing a variety of halogenated, oxygenated, nitrogenated, and sulfonated hydrocarbons, in addition to those hydrocarbons containing only carbon and hydrogen, was used to examine measurement biases of the TCO and GRAV methods. The results indicate that, at least for this particular standard, both methods are accurate, exhibiting biases < plus or minus 10%. However, these TCO results may be deceiving. TCO measurement biases observed for select individual semivolatile organic compounds are well in excess of the composite bias observed. The composite bias observed may be more a result of a relatively equal number of negative and positive biases that negate each rather than a true indication of TCO measurement bias. Further methods evaluation work is required to support this tenet. Additional tests were performed to verify that the semivolatile organic mass was not redundantly measured by the GRAV procedure. Experiments were also performed to expand the mass of nonvolatile organic material that could be quantified using the TCO procedure. Expanding the TCO working bp range may be a viable alternative to the GRAV technique. It must be cautioned that these results are not fully comprehensive in nature and, as a result, applications of these results are limited. JF - Waste Management AU - Ryan, J V AU - Lemieux, P M AU - Pollard, K AU - Workman, R AU - Antley, B AU - Yurk, J AD - US EPA, Office of Research and Development, National Risk Management Research Laboratory, Air Pollution Prevention and Control Division, Research Triangle Park, NC 27711, USA, ryan.jeff@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 347 EP - 353 VL - 20 IS - 5-6 SN - 0956-053X, 0956-053X KW - Pollution Abstracts KW - Hydrocarbons KW - Combustion products KW - Waste treatment KW - EPA KW - Emission measurements KW - Incinerators KW - Organic compounds KW - Hazardous wastes KW - P 0000:AIR POLLUTION KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17550473?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Waste+Management&rft.atitle=Characterization+of+organic+emissions+from+hazardous+waste+incineration+processes+under+the+new+EPA+draft+Risk+Burn+Guidance%3A+measurement+issues&rft.au=Ryan%2C+J+V%3BLemieux%2C+P+M%3BPollard%2C+K%3BWorkman%2C+R%3BAntley%2C+B%3BYurk%2C+J&rft.aulast=Ryan&rft.aufirst=J&rft.date=2000-01-01&rft.volume=20&rft.issue=5-6&rft.spage=347&rft.isbn=&rft.btitle=&rft.title=Waste+Management&rft.issn=0956053X&rft_id=info:doi/10.1016%2FS0956-053X%2899%2900336-0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Incinerators; Hazardous wastes; Combustion products; Emission measurements; Hydrocarbons; EPA; Organic compounds; Waste treatment DO - http://dx.doi.org/10.1016/S0956-053X(99)00336-0 ER - TY - CONF T1 - The epidemiology of chemical contaminants of drinking water AN - 17546274; 4726770 AB - A number of chemical contaminants have been identified in drinking water. These contaminants reach drinking water supplies from various sources, including municipal and industrial discharges, urban and rural run-off, natural geological formations, drinking water distribution materials and the drinking water treatment process. Chemical contaminants for which epidemiologic studies have reported associations include the following: aluminium, arsenic, disinfection by-products, fluoride, lead, pesticides and radon. Health effects reported have included various cancers, adverse reproductive outcomes, cardiovascular disease and neurological disease. In evaluating epidemiologic studies for risk assessment, considering whether the study design was qualitative (hypothesis generating) or quantitative (hypothesis testing) is important and whether sufficient epidemiologic data of a quantitative nature exists to determine the dose-response curve. Each of the chemical contaminants mentioned are summarized by study designs (qualitative and quantitative) and whether a dose-response curve based on epidemiologic data has been proposed. Environmental epidemiology studies are driven by environmental exposures of interest. For drinking water contaminants, the design of epidemiologic studies and their interpretation should consider the following exposure issues: the source of the contaminant; other sources of the contaminant; the route of exposure; the frequency, duration and magnitude of exposure; the ability to document an actual internal dose; and the ability to document the dose to the target organ. Health effects of concern have other risk factors that must be measured in the conduct of these studies. In evaluating epidemiologic studies, potential errors and biases that may occur must be considered given the very low magnitude of associations (less than 2.0 for either odds ratio or risk ratio). Given the issues, the next generation of drinking water epidemiologic studies should include a multidisciplinary team beyond traditional epidemiologists and statisticians. Study teams will require toxicologists, chemists, engineers and exposure assessors. Arsenic is briefly discussed as an example of the importance of susceptible populations. Disinfection by-products are discussed as an example of epidemiologic studies of mixtures. JF - Food and Chemical Toxicology AU - Calderon, R L Y1 - 2000 PY - 2000 DA - 2000 SP - S13 EP - S20 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 38 KW - byproducts KW - epidemiology KW - Toxicology Abstracts KW - Disinfection KW - Arsenic KW - Water treatment KW - Fluoride KW - Pesticides KW - Chemical pollution KW - Drinking water KW - Radon KW - X 24120:Food, additives & contaminants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17546274?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+Chemical+Toxicology&rft.atitle=The+epidemiology+of+chemical+contaminants+of+drinking+water&rft.au=Calderon%2C+R+L&rft.aulast=Calderon&rft.aufirst=R&rft.date=2000-01-01&rft.volume=38&rft.issue=&rft.spage=S13&rft.isbn=&rft.btitle=&rft.title=Food+and+Chemical+Toxicology&rft.issn=02786915&rft_id=info:doi/10.1016%2FS0278-6915%2899%2900133-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1016/S0278-6915(99)00133-7 ER - TY - CONF T1 - Measuring risks in humans: The promise and practice of epidemiology AN - 17543736; 4726807 AB - Epidemiology has been considered the fundamental science of public health policy. The use of epidemiologic data in environmental health policy has been limited particularly in the environmental regulatory arena. Epidemiologic risk assessment (ERA) is different from risk assessment and the interplay between the two has led to some misconceptions over the promise and practice of epidemiologic data. The current risk assessment process was designed in a time when the need for regulation was great and the epidemiologic information was sparse. There was little time for the consideration of conducting specific studies to improve the information base for environmental health policy. Animal bioassays could be conducted under standardized protocols within defined time periods. The limitations and uncertainties of animal studies also became standardized and risk assessors became comfortable with their models of extrapolation. As the cost of regulations have grown, the economic realities of regulating with little or no data to support actual public health benefit have become a political and legal liability. Major among epidemiology's advantages is that the information is of direct relevance. The majority of epidemiology data are observation and whether the number of studies is broad enough, the data can be generalized to major segments of the population. The uncertainties in animal-based risk assessments are likely to be greater than the uncertainties associated with epidemiologic studies. Another advantage is the range of extrapolation is often smaller. Another advantage is that epidemiologic data include the genetic diversity and variability in other endogenous factors inherent in human populations. The homogeneity of animal studies has often been cited as an advantage but is unrepresentative of the heterogeneity of the human race. Epidemiology does have its limitations. A major limitation is the time needed to obtain a database sufficient for policy-making purposes and the resources needed to conduct the research to develop the database. This has often prompted the conduct of poorly designed studies, forced the use of data collected for other purposes or improper use of existing data. Four situations where epidemiology should be pursued are discussed. Once an environmental health decision has been made, epidemiologic studies should be considered for documenting the reduction of exposure and therefore disease in the population. This traditional use of epidemiology has rarely been applied in the environmental health arena. A final consideration on the use of epidemiologic data is the need to provide a sense of perspective to set priorities in the larger context of public health priorities. The role of environmental pollutants in causing disease may in some cases be minor in comparison to other risk factors and needs to be considered in setting environmental regulations. JF - Food and Chemical Toxicology AU - Calderon, R L Y1 - 2000 PY - 2000 DA - 2000 SP - S59 EP - S63 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 38 KW - Toxicology Abstracts KW - Risk assessment KW - Epidemiology KW - Government policy KW - Polluted environments KW - Public health KW - X 24230:Legislation & recommended standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17543736?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+Chemical+Toxicology&rft.atitle=Measuring+risks+in+humans%3A+The+promise+and+practice+of+epidemiology&rft.au=Calderon%2C+R+L&rft.aulast=Calderon&rft.aufirst=R&rft.date=2000-01-01&rft.volume=38&rft.issue=&rft.spage=S59&rft.isbn=&rft.btitle=&rft.title=Food+and+Chemical+Toxicology&rft.issn=02786915&rft_id=info:doi/10.1016%2FS0278-6915%2899%2900134-9 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1016/S0278-6915(99)00134-9 ER - TY - JOUR T1 - Assessment of estrogenicity by using the delayed implanting rat model and examples AN - 17542470; 4729333 AB - Endocrine disrupting chemicals have recently drawn increased interest. The delayed implanting rat model is a method that can identify and quantify the estrogenic activity of a chemical. In rats hypophysectomized after breeding, the administration of progesterone delays embryo implantation, and exposure to one dose of an estrogenic substance initiates implantation. Although methoxychlor was ineffective at dosages below 400 mg/kg when given by injection, the administration of the chemical by gavage resulted in an increase in the percent of fertilized rats exhibiting implantation sites. These results were statistically significant at dosages of 50, 100, 200, and 300 mg methoxychlor/kg. When bisphenol A was administered, by subcutaneous injection, dosages of 50, 100, and 200 mg/kg induced implantation. Only the 400 mg/kg dose of 4-tert-octylphenol was effective. Doses of beta -sitosterol up to 30 mg/kg failed to initiate implantation. These data confirm previous evidence of the availability of this model for evaluating estrogenic activity and provide estimates of the estrogenic potencies of several environmentally important chemicals. JF - Reproductive Toxicology AU - Cummings, A M AU - Laws, S C AD - Reproductive Toxicology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA, cummings.audrey@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 111 EP - 117 VL - 14 IS - 2 SN - 0890-6238, 0890-6238 KW - rats KW - endocrine disruptors KW - Toxicology Abstracts KW - Bisphenol A KW - Estrogens KW - Progesterone KW - Implantation KW - Methoxychlor KW - Embryos KW - X 24155:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17542470?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reproductive+Toxicology&rft.atitle=Assessment+of+estrogenicity+by+using+the+delayed+implanting+rat+model+and+examples&rft.au=Cummings%2C+A+M%3BLaws%2C+S+C&rft.aulast=Cummings&rft.aufirst=A&rft.date=2000-01-01&rft.volume=14&rft.issue=2&rft.spage=111&rft.isbn=&rft.btitle=&rft.title=Reproductive+Toxicology&rft.issn=08906238&rft_id=info:doi/10.1016%2FS0890-6238%2800%2900062-9 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Estrogens; Embryos; Implantation; Progesterone; Methoxychlor; Bisphenol A DO - http://dx.doi.org/10.1016/S0890-6238(00)00062-9 ER - TY - CONF T1 - Uncertainty analysis of the estimated ingestion rates used to derive the methylmercury reference dose AN - 17529382; 4708009 AB - The U.S. EPA's Reference Dose (RfD) for methylmercury (MeHg) uses a simple one-compartment toxicokinetic model to estimate ingestion doses in mg/kg-day from measured concentrations of mercury in hair. The model includes a number of input variables for which point estimates are made. Uncertainty in the inputs is addressed by the use of a 3-fold uncertainty factor. There are, however, published ranges for each variable which are used to develop distributions for each of the inputs. Monte Carlo output of the model is generated. The 90% confidence interval spans a 3-fold to 5-fold range of ingestion doses for any given concentration of mercury in hair. The hair:blood mercury concentration ratio contributes most to the variance of the output. The results indicate that the uncertainty factor of three is appropriate. JF - Drug and Chemical Toxicology AU - Swartout, J AU - Rice, G Y1 - 2000 PY - 2000 DA - 2000 SP - 293 EP - 306 PB - Marcel Dekker Journals, 270 Madison Ave. New York NY 10016-0602 USA VL - 23 IS - 1 KW - estimated ingestion rates KW - reference dose KW - Toxicology Abstracts KW - Mathematical models KW - Heavy metals KW - Dosimetry KW - Dimethylmercury KW - Mercury KW - X 24163:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17529382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Drug+and+Chemical+Toxicology&rft.atitle=Uncertainty+analysis+of+the+estimated+ingestion+rates+used+to+derive+the+methylmercury+reference+dose&rft.au=Swartout%2C+J%3BRice%2C+G&rft.aulast=Swartout&rft.aufirst=J&rft.date=2000-01-01&rft.volume=23&rft.issue=1&rft.spage=293&rft.isbn=&rft.btitle=&rft.title=Drug+and+Chemical+Toxicology&rft.issn=01480545&rft_id=info:doi/10.1081%2FDCT-100100116 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1081/DCT-100100116 ER - TY - CONF T1 - Derivation of U.S. EPA's oral reference dose (RFD) for methylmercury AN - 17528547; 4707994 AB - Mercury (Hg) cycles in the environment through a series of complex chemical and physical transformations that occur in air, soils, and water bodies. One component of the environmental mercury cycle is the formation of methylmercury (MHg) primarily by aquatic and marine microorganisms and the accumulation of MHg in foodwebs, particularly in piscivorous species. Human consumption of piscivorous fish and other piscivorus animals is the most common pathway of exposure to MHg. For non-carcinogenic toxic endpoints, the U.S. EPA typically develops a Reference Dose (RfD). This is generally interpreted to be a concentration of a chemical which can be consumed on a daily basis over a lifetime without expectation of adverse effect. There is substantial evidence in both animal and humans that MHg is a neurotoxicant in the adult and the child as well as a developmental neurotoxicant for the fetus. Epidemics of MHg poisoning in Japan and Iraq have resulted from high-dose exposures to MHg. In these epidemics adults, children, nursing infants and fetuses were affected by MHg. The epidemics demonstrate that neurotoxicity is the health effect of greatest concern and that effects on the developing human nervous system apparently occur at lower exposures than those affecting the adult nervous system. We describe how the data from the Iraqi MHg epidemic were used to derive the current RfD of 0.1 mu g/Kg sub(bw)/day. JF - Drug and Chemical Toxicology AU - Rice, G AU - Swartout, J AU - Mahaffey, K AU - Schoeny, R Y1 - 2000 PY - 2000 DA - 2000 SP - 41 EP - 54 PB - Marcel Dekker Journals, 270 Madison Ave. New York NY 10016-0602 USA VL - 23 IS - 1 KW - reference dose KW - epidemics KW - Dimethylmercury KW - Iraq KW - USA, Environmental Protection Agency KW - Health & Safety Science Abstracts; Pollution Abstracts; Toxicology Abstracts KW - Dosimetry KW - Poisoning KW - Neurotoxicity KW - Standards KW - X 24230:Legislation & recommended standards KW - H 14000:Toxicology KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17528547?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Drug+and+Chemical+Toxicology&rft.atitle=Derivation+of+U.S.+EPA%27s+oral+reference+dose+%28RFD%29+for+methylmercury&rft.au=Rice%2C+G%3BSwartout%2C+J%3BMahaffey%2C+K%3BSchoeny%2C+R&rft.aulast=Rice&rft.aufirst=G&rft.date=2000-01-01&rft.volume=23&rft.issue=1&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Drug+and+Chemical+Toxicology&rft.issn=01480545&rft_id=info:doi/10.1081%2FDCT-100100101 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1081/DCT-100100101 ER - TY - JOUR T1 - Endocrine-Disrupting Chemicals: Prepubertal Exposures and Effects on Sexual Maturation and Thyroid Activity in the Female Rat. A Focus on the EDSTAC Recommendations AN - 17517793; 4703232 AB - Exposures to a variety of xenobiotics during the prepubertal period can influence the occurrence of those interrelated processes that underlie the transition to sexual maturity. The proposed protocol, which employs an period of exposure from postnatal day 22 to 42, should be able to identify the vast majority of environmental compounds that have an impact on the endocrine events underlying sexual maturation, if due consideration is given to a number of experimental design issues. Existing data indicate that pubertal development can be readily altered by substances that affect estrogen activity (i.e., synthesis, receptor binding, and clearance). It is also clear that agents that influence central nervous system function will also modify the onset of puberty. Finally, those compounds able to cause alterations in thyroid activity are also identifiable, if the limitations for endocrine assessments are understood (see part V). While statistically significant effects on sexual maturation can be determined, the biological significance of an alteration in any of the recommended pubertal endpoints to subsequent adult reproductive activity is equivocal. A larger magnitude of an effect at an environmentally relevant level of exposure would, of course, be of increased concern. However, the weight of evidence from a comprehensive assessment of data from the various T1S protocols should provide sufficient information to address an alteration in hormonal signaling. Given that an endocrine-disrupting chemical is defined according to a broadly based alteration in hormonal function, the data argue for inclusion of an assessment incorporating pubertal endpoints that can be combined with other protocols to form a comprehensive battery that will identify potentially adverse endocrine-mediated effects induced by a diverse assortment of compounds. JF - Critical Reviews in Toxicology AU - Goldman, J M AU - Laws, S C AU - Balchak, S K AU - Cooper, R L AU - Kavlock, R J AD - Endocrinology Branch, RTD, NHEERL, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 135 EP - 196 VL - 30 IS - 2 SN - 1040-8444, 1040-8444 KW - rats KW - endocrine system KW - sexual maturity KW - Toxicology Abstracts KW - Reviews KW - Thyroid KW - Xenobiotics KW - Puberty KW - X 24250:Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17517793?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Critical+Reviews+in+Toxicology&rft.atitle=Endocrine-Disrupting+Chemicals%3A+Prepubertal+Exposures+and+Effects+on+Sexual+Maturation+and+Thyroid+Activity+in+the+Female+Rat.+A+Focus+on+the+EDSTAC+Recommendations&rft.au=Goldman%2C+J+M%3BLaws%2C+S+C%3BBalchak%2C+S+K%3BCooper%2C+R+L%3BKavlock%2C+R+J&rft.aulast=Goldman&rft.aufirst=J&rft.date=2000-01-01&rft.volume=30&rft.issue=2&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Critical+Reviews+in+Toxicology&rft.issn=10408444&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Puberty; Xenobiotics; Thyroid; Reviews ER - TY - JOUR T1 - Endocrine-Disrupting Chemicals: Prepubertal Exposures and Effects on Sexual Maturation and Thyroid Function in the Male Rat. A Focus on the EDSTAC Recommendations AN - 17517666; 4703233 AB - The existing data indicate that this assessment of pubertal development and thryoid function in the male rat is a simple and effective method to detect the endocrine activity of pesticides and toxic substances. As indicated above, such a simple and sensitive assay for EDCs may provide some advantages over other methods under consideration that utilize castrate-hormone-treated males (Endocrine Disrupters Screening and Testing Advisory Committee [EDSTAC], 1998). As reviewed here, toxicants administered from 23 to 53 days of age in the "male pubertal assay" successfully identify the endocrine activity of several antiandrogenic and estrogenic pesticides. The scientific basis for the longer duration of the study, when compared with the shortened versions proposed by Ashby and Lefevre (1997) and in the proposed EDSTAC protocols (Final Report, 1998) is also provided. JF - Critical Reviews in Toxicology AU - Stoker, TE AU - Parks, L G AU - Gray, LE AU - Cooper, R L AD - GEEBB, RTD, NHEERL, U.S. EPA, Research Triangle Park, North Carolina 27711, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 197 EP - 252 VL - 30 IS - 2 SN - 1040-8444, 1040-8444 KW - rats KW - endocrine system KW - sexual maturity KW - Toxicology Abstracts KW - Reviews KW - Thyroid KW - Xenobiotics KW - Puberty KW - X 24250:Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17517666?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Critical+Reviews+in+Toxicology&rft.atitle=Endocrine-Disrupting+Chemicals%3A+Prepubertal+Exposures+and+Effects+on+Sexual+Maturation+and+Thyroid+Function+in+the+Male+Rat.+A+Focus+on+the+EDSTAC+Recommendations&rft.au=Stoker%2C+TE%3BParks%2C+L+G%3BGray%2C+LE%3BCooper%2C+R+L&rft.aulast=Stoker&rft.aufirst=TE&rft.date=2000-01-01&rft.volume=30&rft.issue=2&rft.spage=197&rft.isbn=&rft.btitle=&rft.title=Critical+Reviews+in+Toxicology&rft.issn=10408444&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Puberty; Xenobiotics; Thyroid; Reviews ER - TY - JOUR T1 - Mutation Spectra of the Drinking Water Mutagen 3-Chloro-4-methyl-5-hydroxy-2(5H)-furanone (MCF)in Salmonella TA100 and TA104: Comparison to MX AN - 17511977; 4699861 AB - The chlorinated drinking water mutagen 3-chloro-4-methyl-5-hydroxy-2(5H)-furanone (MCF) occurs at concentrations similar to or greater than that of the related furanone 3-chloro-4-(dichoromethyl)-5-hydroxy-2(5H)-furanone (MX). MCF and MX differ structurally only by replacement of a 3-methyl in MCF with a 3-dichloromethyl in MX; yet, MCF is significantly less mutagenic than MX and produces different adducts when reacted with nucleosides or DNA. To explore further the effects that these structural differences might have on the biological activity of MCF and MX, we determined the mutation spectra of MCF in Salmonella strains TA100 and TA104 and of MX in strain TA104; the spectrum of MX in TA100 had been determined previously. In TA100, which presents only GC targets for mutagenesis, MCF induced primarily (75%) GC arrow right TA transversions, with most of the remaining revertants (20%) being GC arrow right AT transitions. This spectrum was not significantly different from that of MX in TA100 (P = 0.07). In TA104, which presents both GC and AT targets, MCF induced a lower percentage (57%) of GC arrow right TA transversions, with most of the remaining revertants (33%) being AT arrow right TA transversions. In contrast, MX induced almost only (98%) GC arrow right TA transversions in TA104, with the remaining revertants (2%) being AT arrow right TA transversions. Thus, almost all (98%) of the MX mutations were targeted at GC sites in TA104, whereas only 63% of the MCF mutations were so targeted. These results are consistent with the published findings that MX: (1) forms an adduct on guanosine when reacted with guanosine, (2) induces apurinic sites in DNA, and (3) forms a minor adduct on adenosine when reacted with adenosine or DNA. The results are also consistent with evidence that MCF forms adenosine adducts when reacted with adenosine. Our results show that the replacement of the 4-methyl in MCF with a 4-dichloromethyl to form MX not only increases dramatically the mutagenic potency but also shifts significantly the mutagenic specificity from almost equal targeting of GC and AT sites by MCF to almost exclusive targeting of GC sites by MX. JF - Environmental and Molecular Mutagenesis AU - Shaughnessy, D T AU - Ohe, Takeshi AU - Landi, S AU - Warren, SH AU - Richard, A M AU - Munter, T AU - Franzen, R AU - Kronberg, L AU - DeMarini, D M AD - Environmental Carcinogenesis Division (MD-68), U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA, demarini.david@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 106 EP - 113 VL - 35 IS - 2 SN - 0893-6692, 0893-6692 KW - mutagens KW - 3-Chloro-4-methyl-5-hydroxy-2(5H)-furanone KW - 3-chloro-4-dichloromethyl-5-hydroxy-2(5H)-furanone KW - 3-chloro-4-methyl-5-hydroxy-2(5H)-furanone KW - furanone 3-chloro-4-(dichoromethyl)-5-hydroxy-2(5H)-furanone KW - Toxicology Abstracts; Genetics Abstracts; Water Resources Abstracts KW - Testing Procedures KW - Mutagenicity KW - Ames test KW - Water KW - Drinking Water KW - Water Treatment KW - Chlorination KW - Drinking water KW - Adenosine KW - Salmonella KW - X 24120:Food, additives & contaminants KW - SW 3060:Water treatment and distribution KW - G 07221:Specific chemicals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17511977?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+and+Molecular+Mutagenesis&rft.atitle=Mutation+Spectra+of+the+Drinking+Water+Mutagen+3-Chloro-4-methyl-5-hydroxy-2%285H%29-furanone+%28MCF%29in+Salmonella+TA100+and+TA104%3A+Comparison+to+MX&rft.au=Shaughnessy%2C+D+T%3BOhe%2C+Takeshi%3BLandi%2C+S%3BWarren%2C+SH%3BRichard%2C+A+M%3BMunter%2C+T%3BFranzen%2C+R%3BKronberg%2C+L%3BDeMarini%2C+D+M&rft.aulast=Shaughnessy&rft.aufirst=D&rft.date=2000-01-01&rft.volume=35&rft.issue=2&rft.spage=106&rft.isbn=&rft.btitle=&rft.title=Environmental+and+Molecular+Mutagenesis&rft.issn=08936692&rft_id=info:doi/10.1002%2F%28SICI%291098-2280%282000%2935%3A23.3.CO%3B2-L LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella; Drinking Water; Water Treatment; Testing Procedures; Mutagenicity; Water; Adenosine; Chlorination; Drinking water; Ames test DO - http://dx.doi.org/10.1002/(SICI)1098-2280(2000)35:2<106::AID-EM5>3.3.CO;2-L ER - TY - JOUR T1 - The effect of ozone on below-ground carbon allocation in wheat AN - 17508520; 4696106 AB - Short-term super(14)CO sub(2) pulse and chase experiments were conducted in order to investigate the effect of ozone on below-ground carbon allocation in spring wheat seedlings (Triticum aestivum L. `ANZA'). Wheat seedlings were grown in a sand-hydroponic system and exposed to either high ozone (38-40 ppm-h) or low ozone (23-31 ppm-h) for 21 days in a series of replicated experiments. Following the ozone exposures, the plants were pulsed with super(14)CO sub(2) and allocation of super(14)C-labeled photosynthate was measured in the plant and growth media. Soluble root exudates were measured, without disturbing the plant roots, 24 h after the super(14)CO sub(2) pulse. Shoot biomass was reduced by 17% for the high ozone and 9% for the low ozone exposures, relative to control treatments. Root biomass was reduced by 9% for the high ozone exposures, but was not significantly different than the controls for the low ozone. The amount of super(14)C activity in the shoot and root tissue 24 h after the super(14)CO sub(2) pulse, normalized to tissue weight, total super(14)CO sub(2) uptake, or the total super(14)C retention in each plant, was not affected by either high or low ozone exposures. The amount of super(14)C activity measured in the growth media solution surrounding the roots increased 9% for the high ozone exposures, and after normalizing to root size or root super(14)C activity, the growth media solution super(14)C activity increased 29 and 40%, respectively. Total respiration of super(14)CO sub(2) from the ozone-treated plants decreased, but the decrease was not statistically significant. Our results suggest that soluble root exudation of super(14)C activity to the surrounding rhizosphere increases in response to ozone. Increased root exudation to the rhizosphere in response to ozone is contrary to reports of decreased carbon allocation below ground and suggests that rhizosphere microbial activity may be initially stimulated by plant exposure to ozone. JF - Environmental Pollution AU - McCrady, J K AU - Andersen, C P AD - US EPA Environmental Research Laboratory, 200 SW 35th Street, Corvallis, OR 97333, USA, mccrady@mail.cor.epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 465 EP - 472 VL - 107 IS - 3 SN - 0269-7491, 0269-7491 KW - Triticum aestivum KW - Pollution Abstracts KW - Microbial activity KW - Biomass KW - Crops KW - Carbon KW - Plants KW - Seedlings KW - Carbon dioxide KW - Ozone KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17508520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Pollution&rft.atitle=The+effect+of+ozone+on+below-ground+carbon+allocation+in+wheat&rft.au=McCrady%2C+J+K%3BAndersen%2C+C+P&rft.aulast=McCrady&rft.aufirst=J&rft.date=2000-01-01&rft.volume=107&rft.issue=3&rft.spage=465&rft.isbn=&rft.btitle=&rft.title=Environmental+Pollution&rft.issn=02697491&rft_id=info:doi/10.1016%2FS0269-7491%2899%2900122-0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ozone; Crops; Carbon dioxide; Seedlings; Plants; Biomass; Microbial activity; Carbon DO - http://dx.doi.org/10.1016/S0269-7491(99)00122-0 ER - TY - JOUR T1 - Ground Water Sampling Bias Observed in Shallow, Conventional Wells AN - 17503546; 4695446 AB - A previous field demonstration project on nitrate-based bioremediation of a fuel-contaminated aquifer used short-screened clustered well points in addition to shallow (10 foot), conventional monitoring wells to monitor the progress of remediation during surface application of recharge. These well systems were placed in the center and at one edge of each of two treatment cells. One cell received recharge amended with nitrate (nitrate cell), and the other received unamended recharge (control cell). Data from the clustered well points were averaged to provide a mean estimate for comparison with the associated conventional monitoring well. Conservative tracer profiles were similar for each of the four systems, with better fits obtained for well systems located at the edge of the treatment cells. However, aromatic hydrocarbon and electron acceptor profiles varied greatly for the two center well systems, with the conventional monitoring well data suggesting that remediation was proceeding at a much more rapid rate than indicated by the cluster well points. Later tests with an electromagnetic borehole flowmeter demonstrated a significant vertical flow through the well-bore of the conventional monitoring well under simulated operating conditions. This created an artifact during sampling, thought to arise from preferential flow of recharge water from the water table to deeper portions of the contaminated zone resulting in several effects, including an actual decreased residence time of water sampled by the conventional well. These data provide additional evidence that conventional monitoring wells may be inadequate for monitoring remediation in the presence of significant vertical hydraulic gradients, even for fairly shallow homogeneous aquifers. JF - Ground Water Monitoring and Remediation AU - Hutchins AU - Acree, S D AD - EPA's National Risk Management Research Laboratory (Subsurface Protection and Remediation Division, Robert S. Kerr Environmental Research Center, P.O. Box 1198, Ada, OK 74820, USA, hutchins.steve@epa.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 86 EP - 93 VL - 20 IS - 1 SN - 1069-3629, 1069-3629 KW - Aqualine Abstracts; Water Resources Abstracts KW - Hydrocarbons KW - Fuels KW - Water Sampling KW - Groundwater Pollution KW - Wells (see also Boreholes) KW - Pollution (Groundwater) KW - Groundwater recharge KW - Wells KW - Remediation KW - Groundwater (see also Aquifers) KW - Flowmeters KW - Hydrocarbon KW - Sampling KW - Groundwater KW - Groundwater Recharge KW - Fuel KW - SW 5040:Data acquisition KW - SW 3070:Water quality control KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17503546?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water+Monitoring+and+Remediation&rft.atitle=Ground+Water+Sampling+Bias+Observed+in+Shallow%2C+Conventional+Wells&rft.au=Hutchins%3BAcree%2C+S+D&rft.aulast=Hutchins&rft.aufirst=&rft.date=2000-01-01&rft.volume=20&rft.issue=1&rft.spage=86&rft.isbn=&rft.btitle=&rft.title=Ground+Water+Monitoring+and+Remediation&rft.issn=10693629&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Groundwater; Water Sampling; Wells; Remediation; Groundwater Pollution; Groundwater Recharge; Flowmeters; Fuel; Hydrocarbons; Groundwater (see also Aquifers); Sampling; Wells (see also Boreholes); Pollution (Groundwater); Groundwater recharge; Fuels; Hydrocarbon ER - TY - JOUR T1 - Zebra Mussel [Dreissena polymorpha (Pallas)] Colonization of Rusty Crayfish [Orconectes rusticus (Girard)] in Green Bay, Lake Michigan AN - 17495014; 4679881 AB - In August 1995 six rusty crayfish (Orconectes rusticus) colonized with zebra mussels (Dreissena polymorpha) were captured in small-meshed fyke-nets set as part of a fish sampling effort at Peter's Marsh and Long-Tail Point Wetland in lower Green Bay. The number of mussels per crayfish ranged from 16 to 431 and the length of the zebra mussels ranged from 1.2 to 12.0 mm with a mean of 3.6 mm. Mussels colonized virtually all areas of the crayfish bodies but the chelae, telson and uropods and thorax were most heavily colonized. Although it is possible that zebra mussels may have positive effects on crayfish populations through associated effects on water clarity, autotroph and invertebrate production, we are concerned that energetic costs or physical constraints caused by attached zebra mussels may be detrimental to crayfish in the Great Lakes. JF - American Midland Naturalist AU - Brazner, J C AU - Jensen, DA AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Blvd., Duluth, MN 55804, USA, brazner.john@epa.gov Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 250 EP - 256 VL - 143 IS - 1 SN - 0003-0031, 0003-0031 KW - North America, Great Lakes KW - Rusty crayfish KW - USA, Wisconsin KW - USA, Wisconsin, Green Bay KW - Zebra mussel KW - Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - Bioenergetics KW - Abundance KW - Freshwater KW - Ecological Effects KW - Epizoites KW - Orconectes rusticus KW - Carapace KW - Colonization KW - Lakes KW - Interspecific relationships KW - Exotic Species KW - Freshwater crustaceans KW - Wetlands KW - Habitat utilization KW - Dreissena polymorpha KW - Zebra Mussels KW - Marshes KW - Crayfish KW - Freshwater molluscs KW - Epibionts KW - Aquatic Habitats KW - Energetics KW - Introduced species KW - USA, Michigan L., Green Bay KW - Q1 08483:Species interactions: general KW - Q1 08281:General KW - SW 0850:Lakes KW - D 04665:Crustaceans KW - Q5 08521:Mechanical and natural changes KW - Q1 08261:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17495014?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Midland+Naturalist&rft.atitle=Zebra+Mussel+%5BDreissena+polymorpha+%28Pallas%29%5D+Colonization+of+Rusty+Crayfish+%5BOrconectes+rusticus+%28Girard%29%5D+in+Green+Bay%2C+Lake+Michigan&rft.au=Brazner%2C+J+C%3BJensen%2C+DA&rft.aulast=Brazner&rft.aufirst=J&rft.date=2000-01-01&rft.volume=143&rft.issue=1&rft.spage=250&rft.isbn=&rft.btitle=&rft.title=American+Midland+Naturalist&rft.issn=00030031&rft_id=info:doi/10.1043%2F0003-0031%282000%29143%280250%3AZMDPPC%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Colonization; Freshwater molluscs; Epibionts; Interspecific relationships; Bioenergetics; Freshwater crustaceans; Introduced species; Epizoites; Carapace; Lakes; Abundance; Energetics; Habitat utilization; Aquatic Habitats; Exotic Species; Wetlands; Marshes; Zebra Mussels; Ecological Effects; Crayfish; Orconectes rusticus; Dreissena polymorpha; USA, Michigan L., Green Bay; Freshwater DO - http://dx.doi.org/10.1043/0003-0031(2000)143(0250:ZMDPPC)2.0.CO;2 ER - TY - JOUR T1 - The Contribution of Microarthropods to Aboveground Food Webs: A Review and Model of Belowground Transfer in a Coniferous Forest AN - 17493766; 4679878 AB - Although belowground food webs have received much attention, studies concerning microarthropods in nondetrital food webs are scarce. Because adult oribatid mites often number between 250,000-500,000/m super(2) in coniferous forests, microarthropods are a potential food resource for macroarthropod and vertebrate predators of the forest floor. Although the contribution of microarthropods to aboveground food webs has received little attention, sufficient data concerning macroarthropods and vertebrate predators were available at the Savannah River Site (SRS, Aiken, South Carolina) to construct a food web model of the various trophic interactions. To supplement this analysis, literature of microarthropod predation by arthropods and vertebrates was reviewed. This information was incorporated with the existing data to produce a model for taxa occurring in coniferous forests at the SRS. Because of the diversity, and natural history of microarthropod predators, both vertebrate and invertebrate, the resulting web is quite connected and includes transfers to many trophic levels. The diets of arthropods and vertebrates are variable; yet feeding patterns reflect the relative abundance of prey at a place and time. Also, many predators feed on members of their own group. These factors suggest that belowground transfers are deserved of more attention in these and other forest food webs where substantial numbers of detritus feeding invertebrates inhabit the soil/litter interface and are available as prey items. Moreover, this model can be generalized to describe the dynamics of arthropod and vertebrate communities in other coniferous forests. The functioning of terrestrial ecosystems is dependent upon the interrelationships between aboveground and belowground food webs, and transfers of biotic components of the decomposer subsystem to aboveground consumers connect the two subsystems. It is hoped that those consumers traditionally associated with foliage-based food webs be reconsidered, as they may be gaining a proportion of their nutrition from organisms in the detrital pathway. JF - American Midland Naturalist AU - Johnston, J M AD - U.S. EPA, Office of Research and Development, Ecosystems Research Division, 960 College Station Rd., Athens, GA 30605, USA, johnston.johnm@epa.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 226 EP - 238 PB - [URL:http://journals.allenpress.com/jrnlserv/?request=get-abstract &issn=0003-0031&volume=143&page=226] VL - 143 IS - 1 SN - 0003-0031, 0003-0031 KW - arthropods KW - USA, South Carolina KW - Entomology Abstracts; Ecology Abstracts KW - Litter KW - Forests KW - Trophic relationships KW - Models KW - Soil KW - Arthropoda KW - Food webs KW - D 04003:Modeling, mathematics, computer applications KW - D 04125:Temperate forests KW - Z 05209:Soil entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17493766?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Midland+Naturalist&rft.atitle=The+Contribution+of+Microarthropods+to+Aboveground+Food+Webs%3A+A+Review+and+Model+of+Belowground+Transfer+in+a+Coniferous+Forest&rft.au=Johnston%2C+J+M&rft.aulast=Johnston&rft.aufirst=J&rft.date=2000-01-01&rft.volume=143&rft.issue=1&rft.spage=226&rft.isbn=&rft.btitle=&rft.title=American+Midland+Naturalist&rft.issn=00030031&rft_id=info:doi/10.1043%2F0003-0031%282000%29143%280226%3ATCOMTA%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Arthropoda; Food webs; Trophic relationships; Soil; Litter; Forests; Models DO - http://dx.doi.org/10.1043/0003-0031(2000)143(0226:TCOMTA)2.0.CO;2 ER - TY - JOUR T1 - Comparative pathogenesis of haloacetic acid and protein kinase inhibitor embryotoxicity in mouse whole embryo culture AN - 17477539; 4678187 AB - Haloacetic acids (HAs) are embryotoxic contaminants commonly found in drinking water. The mechanism of HA embryotoxicity has not been defined, but may be mediated in part by protein kinase C (PKC) inhibition. This study was conducted to evaluate the pathogenesis of HA embryotoxicity, and to compare these data with those from specific (Bis I) and non-specific (staurosporine) inhibitors of PKC. Embryos were incubated for varying times with several HAs, Bis I, staurosporine, or Bis V (a negative control). Cell cycle analysis was performed by flow cytometry following nuclear staining with propidium iodide; apoptosis was evaluated by fluorescence microscopy following Lyso Tracker staining. At concentrations producing 100% embryotoxicity with no embryolethality, only staurosporine perturbed the cell cycle. However, flow cytometry revealed accumulation of sub-G1 events (an apoptotic indicator) across time with bromochloroacetic acid, dicloroacetic acid, and staurosporine, but not dibromoacetic acid, Bis I, or Bis V. Sub-G1 events were particularly prominent in the head region, and remained at control levels in the heart. Lyso Tracker staining confirmed a similar pattern of apoptosis in the intact embryo; BCA and DCA produced intense staining in the prosencephalon, with virtually no staining in the heart. These data indicate that while cell-cycle perturbation may not mediate the pathogenesis of HA embryotoxicity, these agents do induce embryonic apoptosis. In addition, the lack of Bis I-induced apoptosis indicates that PKC inhibition is unlikely to be the sole mediator of HA embryotoxicity. JF - Toxicological Sciences AU - Ward, K W AU - Rogers, E H AU - Hunter, ES III AD - Curriculum in Toxicology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7270, USA, hunter.sid@epamail.epa.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 118 EP - 126 VL - 53 IS - 1 SN - 1096-6080, 1096-6080 KW - mice KW - protein kinase C KW - staurosporine KW - Toxicology Abstracts KW - Flow cytometry KW - Embryogenesis KW - Apoptosis KW - Neurotoxicity KW - Cell cycle KW - Organ culture KW - X 24155:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17477539?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Comparative+pathogenesis+of+haloacetic+acid+and+protein+kinase+inhibitor+embryotoxicity+in+mouse+whole+embryo+culture&rft.au=Ward%2C+K+W%3BRogers%2C+E+H%3BHunter%2C+ES+III&rft.aulast=Ward&rft.aufirst=K&rft.date=2000-01-01&rft.volume=53&rft.issue=1&rft.spage=118&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Embryogenesis; Cell cycle; Apoptosis; Flow cytometry; Neurotoxicity; Organ culture ER - TY - JOUR T1 - Pilot-Scale Ozone Inactivation of Cryptosporidium and Other Microorganisms in Natural Water AN - 17042025; 4820590 AB - A pilot-scale study was conducted to evaluate the inactivation by ozone against Cryptosporidium oocysts, Giardia cysts, poliovirus, and B. subtilis endospores spiked into Ohio River water. The indigenous Ohio River populations of total coliform bacteria, heterotrophic plate count bacteria and endospores of aerobic spore forming bacteria were also evaluated. Endospores were the only organisms found to be more resistant to ozone than Cryptosporidium oocysts. Endospores may serve as an indicator of microbial treatment efficiency. Cryptosporidium oocysts were more resistant than Giardia cysts or poliovirus. Although HPC bacteria were less resistant than Cryptosporidium oocysts, variability limits their usefulness as an indicator of treatment efficiency. Ozone inactivation data generated in a pilot-scale study employing natural surface waters were comparable to inactivation data derived from previously published bench-scale studies using laboratory waters. The ozone requirements for inactivation of Cryptosporidium oocysts may produce elevated levels of bromate and ozone byproducts. JF - Ozone: Science & Engineering AU - Owens, J H AU - Miltner, R J AU - Rice, E W AU - Johnson, CH AU - Dahling AU - Schaefer, FW III AU - Shukairy, H M AD - National Risk Management Research Laboratory, Office of Ground Water and Drinking Water, U.S. Environmental Protection Agency, Cincinnati, OH 45268, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 501 EP - 517 VL - 22 IS - 5 SN - 0191-9512, 0191-9512 KW - Cryptosporidium KW - Giardia KW - USA, Ohio R. KW - bromates KW - Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Byproducts KW - Surface Water KW - Water treatment KW - Bromides KW - Water Treatment KW - Oocytes KW - Pilot Plants KW - Ozone KW - Rivers KW - Micro-organisms KW - Bacteria KW - Coliforms KW - Oocysts KW - Pilot plants KW - Natural Waters KW - Flagellates (Intestinal) KW - Surface water (see also Lakes, Ponds, Streams) KW - Microorganisms KW - Intestinal protozoa KW - Heterotrophic bacteria KW - K 03099:Pollution KW - P 2000:FRESHWATER POLLUTION KW - SW 3060:Water treatment and distribution KW - AQ 00004:Water Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17042025?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ozone%3A+Science+%26+Engineering&rft.atitle=Pilot-Scale+Ozone+Inactivation+of+Cryptosporidium+and+Other+Microorganisms+in+Natural+Water&rft.au=Owens%2C+J+H%3BMiltner%2C+R+J%3BRice%2C+E+W%3BJohnson%2C+CH%3BDahling%3BSchaefer%2C+FW+III%3BShukairy%2C+H+M&rft.aulast=Owens&rft.aufirst=J&rft.date=2000-01-01&rft.volume=22&rft.issue=5&rft.spage=501&rft.isbn=&rft.btitle=&rft.title=Ozone%3A+Science+%26+Engineering&rft.issn=01919512&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Rivers; Coliforms; Water treatment; Heterotrophic bacteria; Ozone; Microorganisms; Bacteria; Micro-organisms; Flagellates (Intestinal); Bromides; Pilot plants; Byproducts; Surface water (see also Lakes, Ponds, Streams); Oocytes; Intestinal protozoa; Natural Waters; Giardia; Oocysts; Cryptosporidium; Water Treatment; Surface Water; Pilot Plants ER - TY - JOUR T1 - Phytoextraction of metals from contaminated soil: A review of plant/soil/metal interaction and assessment of pertinent agronomic issues AN - 16200566; 6400279 AB - Phytoremediation is an emerging technology that employs the use of higher plants for the cleanup of contaminated environments. Fundamental and applied research have unequivocally demonstrated that selected plant species possess the genetic potential to remove, degrade, metabolize, or immobilize a wide range of contaminants. Despite this tremendous potential, phytoremediation is yet to become a commercial technology. Progress in the field is precluded by limited knowledge of basic plant remedial mechanisms. In addition, the effect of agronomic practices on these mechanisms is poorly understood. Another limitation lies within the very biological nature of this novel approach. For example, potential for phytoremediation depends upon the interaction among soil, contaminants, microbes, and plants. This complex interaction, affected by a variety of factors, such as climatic conditions, soil properties, and site hydro-geology, argues against generalization, and in favor of site-specific phytoremediating practices. Thus, an understanding of the basic plant mechanisms and the effect of agronomic practices on plant/soil/contaminant interaction would allow practitioners to optimize phytoremediation by customizing the process to site-specific conditions. Remediation of metal-contaminated soil faces a particular challenge. Unlike organic contaminants, metals cannot be degraded. Commonly, decontamination of metal-contaminated soils requires the removal of toxic metals. Recently, phytoextraction, the use of plants to extract toxic metals from contaminated soils, has emerged as a cost-effective, environment-friendly cleanup alternative. In this paper, we review the processes and mechanisms that allow plants to remove metals from contaminated soils and discuss the effects of agronomic practices on these processes. JF - Journal of Hazardous Substance Research AU - Lasat, M M AD - Technology Innovation Office, US-EPA (5102G), 1200 Pennsylvania Ave., N.W., Washington, D.C. 20460, USA Y1 - 2000 PY - 2000 DA - 2000 VL - 2 SN - 1090-7025, 1090-7025 KW - Pollution Abstracts KW - Soil remediation KW - Metals KW - Bioremediation KW - Phytoremediation KW - Pollution clean-up KW - Remediation KW - Economics KW - Plants KW - Decontamination KW - Soil contamination KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16200566?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hazardous+Substance+Research&rft.atitle=Phytoextraction+of+metals+from+contaminated+soil%3A+A+review+of+plant%2Fsoil%2Fmetal+interaction+and+assessment+of+pertinent+agronomic+issues&rft.au=Lasat%2C+M+M&rft.aulast=Lasat&rft.aufirst=M&rft.date=2000-01-01&rft.volume=2&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hazardous+Substance+Research&rft.issn=10907025&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-10-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Soil remediation; Metals; Bioremediation; Pollution clean-up; Phytoremediation; Economics; Remediation; Plants; Decontamination; Soil contamination ER - TY - JOUR T1 - Electromagnetic Induction and GPR Measurements for Creosote Contaminant Investigation AN - 16167164; 5781533 AB - Multifrequency EM induction and GPR parallel dipole (co-pole) and orthogonal dipole (cross-pole) surveys were conducted to assist in the characterization of a former industrial site prior to it being remediated by the Ohio EPA and the U.S. EPA. The site has been a major concern to both agencies for the past decade due to high concentrations of creosote present in clay-rich surficial soils, resulting from many years of wood treating at the site. Information provided on the approximate extent of contamination at the site and the locations of several contaminant-filled structures determined through the use of quadrature phase EM data and cross-pole GPR data served as the basis for an efficient, comprehensive and cost-effective site remediation plan. Geophysical data interpretations were confirmed through exploratory trenching and soil sampling subsequent to the completion of this study. This study demonstrates the potential for mapping the extent and variation with depth of resistive compounds under circumstances where high levels of contamination are present with relatively conductive background materials. The approximate extent and depth of creosote compounds within the near-surface materials at the site was mapped using 4 kHz and 9 kHz out of phase (quadrature) EM data, as contaminated areas exhibited anomalously low conductivity values relative to non-contaminated areas. Anomalies in the EM data that were attributed to high levels of contamination correlated with analytical soil sample test results that were obtained prior to the geophysical surveys, and were also consistent with the actual extent of contamination determined through exploratory sampling subsequent to data interpretations. Multi-component GPR measurements at the site complemented the EM data. Cross-pole GPR data were more useful than co-pole data at the site for imaging several structures containing creosote that would have remained undiscovered and acted as future sources of contamination. A general overview of the GPR surveys at the site is presented in this paper. JF - Journal of Environmental & Engineering Geophysics AU - Guy, ED AU - Daniels, J J AU - Holt, J AU - Radzevicius, S J AU - Vendl, MA AD - U.S. EPA, Region V, Chicago, Ill. Y1 - 2000 PY - 2000 DA - 2000 SP - 11 EP - 19 PB - Environmental and Engineering Geophysical Society, 10200 W. 44th Avenue Suite 304 Wheat Ridge CO 80033-2480 USA VL - 5 IS - 2 SN - 1083-1363, 1083-1363 KW - creosote KW - Pollution Abstracts KW - Environmental monitoring KW - Remediation KW - Radar KW - Soil contamination KW - Geophysics KW - Mapping KW - Electromagnetic fields KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16167164?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+%26+Engineering+Geophysics&rft.atitle=Electromagnetic+Induction+and+GPR+Measurements+for+Creosote+Contaminant+Investigation&rft.au=Guy%2C+ED%3BDaniels%2C+J+J%3BHolt%2C+J%3BRadzevicius%2C+S+J%3BVendl%2C+MA&rft.aulast=Guy&rft.aufirst=ED&rft.date=2000-01-01&rft.volume=5&rft.issue=2&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+%26+Engineering+Geophysics&rft.issn=10831363&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-03-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Radar; Remediation; Mapping; Geophysics; Soil contamination; Electromagnetic fields ER - TY - JOUR T1 - The link between protecting natural resources and the issue of Environmental Justice AN - 16126039; 5169148 AB - Communities frequently raise environmental justice issues when decisions are made without taking into consideration how people, including people living in low-income and minority communities, are linked to their surrounding environment. Different communities use and relate to their environment in different ways and face different levels of environmental harms and risks. Thus, to avoid disproportionate impacts, it is critical that each community's environmental needs and vulnerabilities be understood and considered before decisions are made. Existing statutory authority provides ample opportunity for decisionmakers to involve communities in the decisionmaking process and to consider how they use and relate to their environment and the natural resources services that their environment provides. This article analyzes the integration of environmental justice concerns into the U.S. Environmental Protection Agency's decisionmaking process with special attention given to permits issued under the Resource Conservation and Recovery Act. In addition, through case study analysis, the article examines how environmental justice issues have been addressed by: EPA in the establishment of water quality criteria under the Clean Water Act; the Nuclear Regulatory Commission's and the Department of the Interior's application of the National Environmental Policy Act; and the Army Corps of Engineers' decisionmaking process under Section 404 of the Clean Water Act. JF - Boston College Environmental Affairs Law Review AU - Hill, B E AU - Targ, N AD - Office of Environmental Justice of the U.S. Environmental Protection Agency Y1 - 2000 PY - 2000 DA - 2000 SP - 1 EP - 38 VL - 28 IS - 1 SN - 0190-7034, 0190-7034 KW - Pollution Abstracts; Sustainability Science Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Resource management KW - Policies KW - Resource conservation KW - Socioeconomics KW - Water quality KW - Environmental protection KW - USA KW - Environmental equity KW - Natural resources KW - Legal aspects KW - Nature conservation KW - Conservation KW - Governments KW - Vulnerability KW - Q5 08523:Conservation, wildlife management and recreation KW - P 9000:ENVIRONMENTAL ACTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16126039?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Boston+College+Environmental+Affairs+Law+Review&rft.atitle=The+link+between+protecting+natural+resources+and+the+issue+of+Environmental+Justice&rft.au=Hill%2C+B+E%3BTarg%2C+N&rft.aulast=Hill&rft.aufirst=B&rft.date=2000-01-01&rft.volume=28&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Boston+College+Environmental+Affairs+Law+Review&rft.issn=01907034&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-06-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Policies; Resource conservation; Legal aspects; Natural resources; Nature conservation; Governments; Vulnerability; Water quality; Environmental protection; Environmental equity; Resource management; Socioeconomics; Conservation; USA ER -