TY - CPAPER T1 - Remote and proximate sensing in support of sustainable watershed management AN - 39555683; 3675109 AU - Rochon, G Y1 - 2002/06/03/ PY - 2002 DA - 2002 Jun 03 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39555683?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Remote+and+proximate+sensing+in+support+of+sustainable+watershed+management&rft.au=Rochon%2C+G&rft.aulast=Rochon&rft.aufirst=G&rft.date=2002-06-03&rft.volume=&rft.issue=&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 Photogammetry and Remote Sensing, URL: www.isprs.org. Poster Paper No. PS.7.4 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Management principles for onsite wastewater treatment systems AN - 39541858; 3671294 AU - Hogye, S AU - Hudson, J AU - Rubin, R AU - Tonning, B Y1 - 2002/06/03/ PY - 2002 DA - 2002 Jun 03 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/39541858?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Management+principles+for+onsite+wastewater+treatment+systems&rft.au=Hogye%2C+S%3BHudson%2C+J%3BRubin%2C+R%3BTonning%2C+B&rft.aulast=Hogye&rft.aufirst=S&rft.date=2002-06-03&rft.volume=&rft.issue=&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, 601 Wythe Street, Alexandria, VA 22314-1994, USA; URL: www.wef.org. Paper No. 04d N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Compliance and enforcement actions for emissions violations AN - 39525612; 3682163 AU - Kosim, Z Y1 - 2002/06/03/ PY - 2002 DA - 2002 Jun 03 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39525612?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Compliance+and+enforcement+actions+for+emissions+violations&rft.au=Kosim%2C+Z&rft.aulast=Kosim&rft.aufirst=Z&rft.date=2002-06-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Eletric Utilities Environmental Conference, 5860 N. Calle Grandeza, Tucson, AZ 85718, USA; phone: 520-615-3535; fax: 602-296-0199; email: pdayal@euec.com; URL: www.euec.com N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Watershed approach to understanding anthropogenic influences on streams and their receiving salt marshes AN - 39503498; 3677186 AU - Lussier, S M AU - Wigand, C AU - DaSilva, S AU - Charpentier, M AU - Cormier, S C AU - Klemm, D J Y1 - 2002/06/03/ PY - 2002 DA - 2002 Jun 03 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39503498?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+approach+to+understanding+anthropogenic+influences+on+streams+and+their+receiving+salt+marshes&rft.au=Lussier%2C+S+M%3BWigand%2C+C%3BDaSilva%2C+S%3BCharpentier%2C+M%3BCormier%2C+S+C%3BKlemm%2C+D+J&rft.aulast=Lussier&rft.aufirst=S&rft.date=2002-06-03&rft.volume=&rft.issue=&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, 400 Waterfront Drive, Pittsburgh, PA 15222, USA; fax: 412 442-4328; URL: www.benthos.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Assessing a hydrogeologic classification system in mid-Atlantic Coastal Plain streams using benthic macroinvertebrates AN - 39502910; 3677190 AU - Hutchens, J J AU - Blocksom, KA AU - Klemm, D J AU - Ator, S W AU - Denver, J M AU - Pitchford, A M AU - Mehaffey, M H Y1 - 2002/06/03/ PY - 2002 DA - 2002 Jun 03 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39502910?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+a+hydrogeologic+classification+system+in+mid-Atlantic+Coastal+Plain+streams+using+benthic+macroinvertebrates&rft.au=Hutchens%2C+J+J%3BBlocksom%2C+KA%3BKlemm%2C+D+J%3BAtor%2C+S+W%3BDenver%2C+J+M%3BPitchford%2C+A+M%3BMehaffey%2C+M+H&rft.aulast=Hutchens&rft.aufirst=J&rft.date=2002-06-03&rft.volume=&rft.issue=&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, 400 Waterfront Drive, Pittsburgh, PA 15222, USA; fax: 412 442-4328; URL: www.benthos.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Short history of Chesapeake Bay modeling and the next generation of watershed and estuarine models AN - 39501279; 3671305 AU - Linker, L C AU - Shenk, G W AU - Wang, P AU - Hopkins, K J AU - Pokharel, S Y1 - 2002/06/03/ PY - 2002 DA - 2002 Jun 03 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/39501279?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Short+history+of+Chesapeake+Bay+modeling+and+the+next+generation+of+watershed+and+estuarine+models&rft.au=Linker%2C+L+C%3BShenk%2C+G+W%3BWang%2C+P%3BHopkins%2C+K+J%3BPokharel%2C+S&rft.aulast=Linker&rft.aufirst=L&rft.date=2002-06-03&rft.volume=&rft.issue=&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, 601 Wythe Street, Alexandria, VA 22314-1994, USA; URL: www.wef.org. Paper No. 06a N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Persistence of pulmonary injury following instillation of residual oil fly ash (ROFA) in spontaneously hypertensive (SH) rats AN - 39460879; 3678612 AU - Watkinson, W AU - Wichers, L AU - Winslett, D AU - Kodavanati, U AU - Costa, D Y1 - 2002/06/03/ PY - 2002 DA - 2002 Jun 03 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39460879?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Persistence+of+pulmonary+injury+following+instillation+of+residual+oil+fly+ash+%28ROFA%29+in+spontaneously+hypertensive+%28SH%29+rats&rft.au=Watkinson%2C+W%3BWichers%2C+L%3BWinslett%2C+D%3BKodavanati%2C+U%3BCosta%2C+D&rft.aulast=Watkinson&rft.aufirst=W&rft.date=2002-06-03&rft.volume=&rft.issue=&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, Resont, VA 20190-5332, USA; URL: www.toxicology.org. Paper No. LB99 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Possible role of vasopressin in the thermoregulatory response to chlorpyrifos in the rat. AN - 72622316; 12403052 AB - Arginine vasopressin is a naturally occurring antipyretic which is released into the CNS to prevent excessive elevations in body temperature during fever. Circulating levels of arginine vasopressin may also have a role in the tonic control of body temperature. We have found that the organophosphate insecticide chlorpyrifos will raise blood pressure and lower body temperature in the rat. Because arginine vasopressin is a potent hypertensive agent and is capable of lowering core temperature, we suspected that arginine vasopressin may be involved in the thermoregulatory response to chlorpyrifos. To this end, core temperature and motor activity of male and female Sprague-Dawely rats were monitored before and after treatment with the corn oil vehicle or chlorpyrifos (15 mg/kg in females; 30 mg/kg in males; oral) concomitant with injection of a saline vehicle or a type 1 arginine vasopressin antagonist (20 microg/kg in females; 30 microg/kg in males; intraperitoneally). Rats dosed with chlorpyrifos and saline underwent a 2-3 degrees reduction in core temperature >50% decrease in motor activity. The V1 antagonist attenuated the hypothermic effect of chlorpyrifos in both sexes. Chlorpyrifos-induced inhibition in motor activity was unaffected by the V1 antagonist. In another experiment, the V1 antagonist (30 microg/kg) was co-administered with saline or 0.2 mg/kg oxotremorine, a muscarinic agonist that stimulates a heat loss response and partially mimics the effects of chlorpyrifos. The V1 antagonist attenuated the hypothermic effect of oxotremorine in both sexes. Plasma arginine vasopressin levels were determined in male rats 3 hr after corn oil or 30 mg/kg chlorpyrifos. There was no significant effect of chlorpyrifos on plasma levels of arginine vasopressin. That the V1 antagonist blocked the hypothermic effect of chlorpyrifos suggests that the thermoregulatory response to chlorpyrifos is mediated by central and/or systemic vasopressin release. The lack of a significant increase in plasma vasopressin after chlorpyrifos suggests that localized release of vasopressin may be involved in the thermoregulatory response to chlorpyrifos. JF - Pharmacology & toxicology AU - Yang, Yong-La AU - Gordon, Christopher J AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, U.S.A. Y1 - 2002/06// PY - 2002 DA - June 2002 SP - 311 EP - 316 VL - 90 IS - 6 SN - 0901-9928, 0901-9928 KW - Insecticides KW - 0 KW - Arginine Vasopressin KW - 113-79-1 KW - 1-(beta-mercapto-beta,beta-cyclopentamethylenepropionic acid)-2-(O-ethyl-Tyr)-4-Val-arginine vasopressin KW - 77453-01-1 KW - Chlorpyrifos KW - JCS58I644W KW - Index Medicus KW - Rats KW - Animals KW - Rats, Sprague-Dawley KW - Hypothermia -- chemically induced KW - Motor Activity -- drug effects KW - Male KW - Female KW - Insecticides -- toxicity KW - Body Temperature Regulation -- drug effects KW - Arginine Vasopressin -- pharmacology KW - Arginine Vasopressin -- antagonists & inhibitors KW - Arginine Vasopressin -- analogs & derivatives KW - Arginine Vasopressin -- blood KW - Chlorpyrifos -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72622316?accountid=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=Possible+role+of+vasopressin+in+the+thermoregulatory+response+to+chlorpyrifos+in+the+rat.&rft.au=Yang%2C+Yong-La%3BGordon%2C+Christopher+J&rft.aulast=Yang&rft.aufirst=Yong-La&rft.date=2002-06-01&rft.volume=90&rft.issue=6&rft.spage=311&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 - 2003-03-04 N1 - Date created - 2002-10-29 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - An investigation of the chemical stability of arsenosugars in simulated gastric juice and acidic environments using IC-ICP-MS and IC-ESI-MS/MS. AN - 71944052; 12146911 AB - A more quantitative extraction of arsenic-containing compounds from seafood matrices is essential in developing better dietary exposure estimates. More quantitative extraction often implies a more chemically aggressive set of extraction conditions. However, these conditions may result in undesirable chemical changes in the native arsenicals which may further complicate the toxicological risk assessment. This balance between quantitative extraction and species-specific integrity may be best addressed by using simulated gastric juice as an extraction solvent to mimic 'bioavailability'. This, conceptually, should extract the bioavailable fraction and induce any chemical changes that would occur because of ingestion. The most chemically labile species associated with seafood are thought to be the arsenosugars and for this reason their chemical stability is investigated in this study. Four arsenosugars (3-[5'-deoxy-5'-(dimethylarsinoyl)-beta-ribofuranosyloxy]-2-hydroxypropylene glycol, As(328); 3-[5'-deoxy-5'-(dimethylarsinoyl)-beta-ribofuranosyloxy]-2-hydroxypropanesulfonic acid, As(392); 3-[5'-deoxy-5'-(dimethylarsinoyl)-beta-ribofuranosyloxyl-2-hydroxypropyl hydrogen sulfate, As(408); and 3-[5'-deoxy-5'-(dimethylarsinoyl)-beta-ribofuranosyloxy]-2-hydroxypropyl-2,3-hydroxypropyl phosphate, As(482)) were isolated from seaweed extracts and subjected to simulated gastric juice and acidic conditions which mimic the stomach's pH of 1.1. Three acid solutions were used to test the chemical stability of the arsenosugars: simulated gastric juice, 78 mM nitric acid and 78 mM hydrochloric acid. The composition of the solutions was monitored over time (up to 48 h) using IC-ICP-MS for detection. The arsenosugars were found to degrade at the rate of 1.4% per h at 38 degrees C and 12.2% per h at 60 degrees C. The plots of percent conversion versus time were found to be independent of the starting arsenosugar and all had r2 values of greater than 0.97. A single common degradation product was observed in all the stability studies. A mass balance between the starting arsenosugar (As(392), As(408) and As(482)) and the degradation product was conducted with each set of experiments. This mass balance indicated that the degradation process did not produce any unchromatographable species. This degradation product was tentatively identified as As(254) as determined by ESI-MS/MS spectral data. An acid hydrolysis mechanism was proposed for the formation of As(254) from each of the native arsenosugars by hydrolysis at the C-1 carbon on the ribose ring. JF - The Analyst AU - Gamble, Bryan M AU - Gallagher, Patricia A AU - Shoemaker, Jody A AU - Wei, Xinyi AU - Schwegel, Carol A AU - Creed, John T AD - United States Environmental Protection Agency, National Exposure Research Laboratory, Microbiological and Chemical Exposure Assessment Research Division, Cincinnati, OH 45268, USA. Y1 - 2002/06// PY - 2002 DA - June 2002 SP - 781 EP - 785 VL - 127 IS - 6 SN - 0003-2654, 0003-2654 KW - Arsenicals KW - 0 KW - Index Medicus KW - Animals KW - Humans KW - Gastric Juice KW - Mass Spectrometry -- methods KW - Spectrometry, Mass, Electrospray Ionization -- methods KW - Arsenicals -- analysis KW - Arsenic Poisoning -- prevention & control KW - Food Contamination KW - Seafood -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71944052?accountid=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+Analyst&rft.atitle=An+investigation+of+the+chemical+stability+of+arsenosugars+in+simulated+gastric+juice+and+acidic+environments+using+IC-ICP-MS+and+IC-ESI-MS%2FMS.&rft.au=Gamble%2C+Bryan+M%3BGallagher%2C+Patricia+A%3BShoemaker%2C+Jody+A%3BWei%2C+Xinyi%3BSchwegel%2C+Carol+A%3BCreed%2C+John+T&rft.aulast=Gamble&rft.aufirst=Bryan&rft.date=2002-06-01&rft.volume=127&rft.issue=6&rft.spage=781&rft.isbn=&rft.btitle=&rft.title=The+Analyst&rft.issn=00032654&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-10-08 N1 - Date created - 2002-07-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The phototoxicity of polycyclic aromatic hydrocarbons: a theoretical study of excited states and correlation to experiment. AN - 71942518; 12139420 AB - Investigators using models to determine the phototoxic effects of sunlight on polycyclic aromatic hydrocarbons (PAHs) have invoked the excited states of the molecule as important in elucidating the mechanism of these reactions. Energies of actual excited states were calculated for ten PAHs by several ab initio methods. The main method used for these calculations was the Configuration Interaction approach, modeling excited states as combinations of single substitutions out of the Hartree-Fock ground state. These calculations correlate well with both experimentally measured singlet and triplet state energies and also previous HOMO-LUMO gap energies that approximate the singlet state energies. The excited state calculations then correlate well with general models of photo-induced toxicity based for the PAHs. JF - Computers & chemistry AU - Betowski, Leon D AU - Enlow, Mark AU - Riddick, Lee AD - National Exposure Research Laboratory--Environmental Sciences Division, US Environmental Protection Agency, Las Vegas, NV 89193-3478, USA. betowski.don@epa.gov Y1 - 2002/06// PY - 2002 DA - June 2002 SP - 371 EP - 377 VL - 26 IS - 4 SN - 0097-8485, 0097-8485 KW - Polycyclic Aromatic Hydrocarbons KW - 0 KW - Index Medicus KW - Quantum Theory KW - Sunlight -- adverse effects KW - Models, Chemical KW - Polycyclic Aromatic Hydrocarbons -- toxicity KW - Dermatitis, Phototoxic KW - Polycyclic Aromatic Hydrocarbons -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71942518?accountid=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=Computers+%26+chemistry&rft.atitle=The+phototoxicity+of+polycyclic+aromatic+hydrocarbons%3A+a+theoretical+study+of+excited+states+and+correlation+to+experiment.&rft.au=Betowski%2C+Leon+D%3BEnlow%2C+Mark%3BRiddick%2C+Lee&rft.aulast=Betowski&rft.aufirst=Leon&rft.date=2002-06-01&rft.volume=26&rft.issue=4&rft.spage=371&rft.isbn=&rft.btitle=&rft.title=Computers+%26+chemistry&rft.issn=00978485&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-08-13 N1 - Date created - 2002-07-25 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Rates of hydrous ferric oxide crystallization and the influence on coprecipitated arsenate. AN - 71846674; 12075804 AB - Arsenate coprecipitated with hydrous ferric oxide (HFO) was stabilized against dissolution during transformation of HFO to more crystalline iron (hydr)oxides. The rate of arsenate stabilization approximately coincided with the rate of HFO transformation at pH 6 and 40 degrees C. Comparison of extraction data and X-ray diffraction results confirmed that hematite and goethite were the primary transformation products. HFO transformation was significantly retarded at or above an arsenate solid loading of 29 455 mg As/kg HFO. However, HFO transformation proceeded at a significant rate for arsenate solid loadings of 4208 and 8416 mg As/kg HFO. At a solid loading of 8416 mg As/kg HFO, XRD results suggested arsenate primarily partitioned to hematite. Comparison of HFO transformation rates observed in this research to rates obtained from the literature at pH 6 and temperatures ranging from 24 to 70 degrees C suggests that arsenate stabilization could be realized in oxic environments with a significantfraction of iron (hydr)oxides. While this process has not been documented in natural systems, the predicted half-life for transformation of an arsenic-bearing HFO is approximately 300 days at 25 degrees C at solid loading < 8415 mg As/kg HFO. The projected time frame for arsenate stabilization indicates this process should be considered during development of conceptual and analytical models describing arsenic fate and transport in oxic systems containing reactive iron (hydr)oxides. The likelihood of this process would depend on the chemical dynamics of the soil or sediment system relative to iron (hydr)oxide precipitation-dissolution reactions and the potential retarding/competing influence of ions such as silicate and organic matter. JF - Environmental science & technology AU - Ford, Robert G AD - U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Ada, Oklahoma 74820, USA. ford.robert@epa.gov Y1 - 2002/06/01/ PY - 2002 DA - 2002 Jun 01 SP - 2459 EP - 2463 VL - 36 IS - 11 SN - 0013-936X, 0013-936X KW - Arsenates KW - 0 KW - Ferric Compounds KW - Teratogens KW - Water Pollutants KW - ferric oxide KW - 1K09F3G675 KW - arsenic acid KW - N7CIZ75ZPN KW - Index Medicus KW - Crystallization KW - Water Pollutants -- analysis KW - Solubility KW - Hydrogen-Ion Concentration KW - Chemical Precipitation KW - Arsenates -- chemistry KW - Ferric Compounds -- chemistry KW - Teratogens -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71846674?accountid=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+science+%26+technology&rft.atitle=Rates+of+hydrous+ferric+oxide+crystallization+and+the+influence+on+coprecipitated+arsenate.&rft.au=Ford%2C+Robert+G&rft.aulast=Ford&rft.aufirst=Robert&rft.date=2002-06-01&rft.volume=36&rft.issue=11&rft.spage=2459&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 completed - 2002-12-11 N1 - Date created - 2002-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Sediment-associated reactions of aromatic amines. 2. QSAR development. AN - 71843189; 12075802 AB - The fate of aromatic amines in soils and sediments is dominated by irreversible binding through nucleophilic addition and oxidative radical coupling. Despite the common occurrence of the aromatic amine functional group in organic chemicals, the molecular properties useful for predicting reaction kinetics in natural systems have not been thoroughly investigated. Toward this goal, the sorption kinetics for a series of anilines with substituents in the ortho, meta, or para positions were measured in sediment slurries. The sorption kinetics of the substituted anilines were characterized by an initial, rapid sorption process followed by a much slower sorption process. The initial rates of sorption varied with the type and position of the substituent group. Rate constants for the initial sorption process were correlated with molecular descriptors, including dissociation constants (pKa's), Hammett sigma constants, polarographic half-wave potentials (E1/2), one-electron oxidation potentials (E1), highest occupied molecular orbital (HOMO) energies (E(HOMO)), and ionization energies (E(IE)). On the basis of the strength of linear correlations and the availability of data, dissociation constants and Hammett sigma constants appear to be the most useful molecular descriptors for predicting reaction rates of substituted anilines in the sediment slurries. The slow rates of sorption were much less sensitive to substituents effects than the rate constants for the faster sorption process, suggesting that the slower process was not controlled by the rate of electron transfer (i.e., nucleophilic addition or radical formation) but was limited by the availability of covalent binding sites. JF - Environmental science & technology AU - Colón, Dalizza AU - Weber, Eric J AU - Baughman, George L AD - National Exposure Research Laboratory, U.S. Environmental Protection Agency, Athens, Georgia 30605, USA. Y1 - 2002/06/01/ PY - 2002 DA - 2002 Jun 01 SP - 2443 EP - 2450 VL - 36 IS - 11 SN - 0013-936X, 0013-936X KW - Amines KW - 0 KW - Soil Pollutants KW - Index Medicus KW - Oxidation-Reduction KW - Kinetics KW - Adsorption KW - Forecasting KW - Structure-Activity Relationship KW - Geologic Sediments -- chemistry KW - Amines -- analysis KW - Amines -- chemistry KW - Soil Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71843189?accountid=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+science+%26+technology&rft.atitle=Sediment-associated+reactions+of+aromatic+amines.+2.+QSAR+development.&rft.au=Col%C3%B3n%2C+Dalizza%3BWeber%2C+Eric+J%3BBaughman%2C+George+L&rft.aulast=Col%C3%B3n&rft.aufirst=Dalizza&rft.date=2002-06-01&rft.volume=36&rft.issue=11&rft.spage=2443&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 completed - 2002-12-11 N1 - Date created - 2002-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Speciation of gas-phase and fine particle emissions from burning of foliar fuels. AN - 71843089; 12075778 AB - Fine particle matter with aerodynamic diameter 70% by mass) PM2.5 are chemically speciated by gas chromatography/mass spectrometry. Expressed as a percent of PM2.5 mass, emission ranges by organic compound class are as follows: n-alkane (0.1-2%), polycyclic aromatic hydrocarbon (PAH) (0.02-0.2%), n-alkanoic acid (1-3%), n-alkanedioic acid (0.06-0.3%), n-alkenoic acid (0.3-3%), resin acid (0.5-6%), triterpenoid (0.2-0.5%), methoxyphenol (0.5-3%), and phytosterol (0.2-0.6%). A molecular tracer of biomass combustion, the sugar levoglucosan is abundant and constitutes a remarkably narrow PM2.5 mass range (2.8-3.6%). Organic chemical signatures in PM2.5 from open combustion of fine fuels differ with those of residential wood combustion and other related sources, making them functional for source-receptor modeling of PM. Inorganic matter [PM2.5 - (organic compounds + elemental carbon)] on average is estimated to make up 8% of the PM2.5. Wavelength dispersive X-ray fluorescence spectroscopy and ion chromatography identify 3% of PM2.5 as elements and water-soluble ions, respectively. Compared with residential wood burning, the PM2.5 of fine fuel combustion is nitrate enriched but shows lower potassium levels. Gas-phase C2-C13 hydrocarbon and C2-C9 carbonyl emissions are speciated by respective EPA Methods T0-15 and T0-11A. They comprise mainly low molecular weight C2-C3 compounds and hazardous air pollutants (48 wt % of total quantified volatile organic carbon). JF - Environmental science & technology AU - Hays, Michael D AU - Geron, Christopher D AU - Linna, Kara J AU - Smith, N Dean AU - Schauer, James J AD - National Risk Management Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. Y1 - 2002/06/01/ PY - 2002 DA - 2002 Jun 01 SP - 2281 EP - 2295 VL - 36 IS - 11 SN - 0013-936X, 0013-936X KW - Air Pollutants KW - 0 KW - Fossil Fuels KW - Gases KW - Hydrocarbons KW - Index Medicus KW - Environmental Monitoring KW - Incineration KW - Plant Leaves KW - Particle Size KW - Gas Chromatography-Mass Spectrometry KW - Volatilization KW - Hydrocarbons -- analysis KW - Air Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71843089?accountid=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+science+%26+technology&rft.atitle=Speciation+of+gas-phase+and+fine+particle+emissions+from+burning+of+foliar+fuels.&rft.au=Hays%2C+Michael+D%3BGeron%2C+Christopher+D%3BLinna%2C+Kara+J%3BSmith%2C+N+Dean%3BSchauer%2C+James+J&rft.aulast=Hays&rft.aufirst=Michael&rft.date=2002-06-01&rft.volume=36&rft.issue=11&rft.spage=2281&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 completed - 2002-12-11 N1 - Date created - 2002-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Determining the causes of impairments in the Little Scioto River, Ohio, USA: part 2. Characterization of causes. AN - 71830621; 12069295 AB - Two stream reaches in the Little Scioto River (OH, USA) were characterized for the causes of impairments measured at two locations. By inductive inference, six candidate causes were winnowed down to three and five candidate causes for each of the two stream reaches. Using a formal strength-of-evidence process, a single cause was determined. At the most upstream location, habitat alterations, including fine-textured substrates and low DO, were characterized as the probable causes for an increased percentage of anomalies of fish, a decreased percentage of mayflies, and an increased percentage of tolerant macroinvertebrates. An increase in the relative weight of fish was attributed to an artificially narrow, deepened channel. Approximately 2 km downstream, polycyclic aromatic hydrocarbon (PAH)-contaminated sediments were identified as the cause for both fish and macroinvertebrate impairments. Causal characterization using first elimination and then a strength-of-evidence approach narrowed and defined the causes of ecological impairment even in this situation, where many complex and interacting candidate causes existed. Applying a formal method highlighted types of data and associations that can strengthen and present a more convincing determination of the causes of impairment. JF - Environmental toxicology and chemistry AU - Cormier, Susan M AU - Norton, Susan B AU - Suter, Glenn W AU - Altfater, David AU - Counts, Bernie AD - US Environmental Protection Agency, National Exposure Research Laboratory, Cincinnati, Ohio 45268, USA. cormier.susan@epa.gov Y1 - 2002/06// PY - 2002 DA - June 2002 SP - 1125 EP - 1137 VL - 21 IS - 6 SN - 0730-7268, 0730-7268 KW - Polycyclic Aromatic Hydrocarbons KW - 0 KW - Water Pollutants, Chemical KW - Index Medicus KW - Body Weight KW - Animals KW - Population Dynamics KW - Fishes KW - Invertebrates KW - Research Design KW - Geologic Sediments KW - Insects KW - Risk Assessment KW - Ohio KW - Ecosystem KW - Water Pollutants, Chemical -- adverse effects KW - Polycyclic Aromatic Hydrocarbons -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71830621?accountid=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+toxicology+and+chemistry&rft.atitle=Determining+the+causes+of+impairments+in+the+Little+Scioto+River%2C+Ohio%2C+USA%3A+part+2.+Characterization+of+causes.&rft.au=Cormier%2C+Susan+M%3BNorton%2C+Susan+B%3BSuter%2C+Glenn+W%3BAltfater%2C+David%3BCounts%2C+Bernie&rft.aulast=Cormier&rft.aufirst=Susan&rft.date=2002-06-01&rft.volume=21&rft.issue=6&rft.spage=1125&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 completed - 2002-11-19 N1 - Date created - 2002-06-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Use of physical, chemical, and biological indices to assess impacts of contaminants and physical habitat alteration in urban streams. AN - 71830012; 12069298 AB - Human activities in urban areas can lead to both chemical pollution and physical alteration of stream habitats. The evaluation of ecological impacts on urban streams can be problematic where both types of degradation occur. Effects of contaminants, for example, may be masked if stream channelization, loss of riparian vegetation, or other physical stressors exert comparable or larger influences. In the Aberjona watershed (near Boston, MA, USA), we used physical, chemical, and biological indices to discern the relative impacts of physical and chemical stressors. We used standard protocols for assessing the biological condition of low-gradient streams, sampling macroinvertebrate communities from several different habitat types (e.g., overhanging bank vegetation, undercut bank roots, and vegetation on rocks). We strengthened the linkage between chemical exposure and macroinvertebrate response by measuring metal concentrations not only in sediments from the stream bottom but also in the vegetative habitats where the macroinvertebrates were sampled. Linear regression analysis indicated that biological condition was significantly dependent (95% confidence level) on contaminants in vegetative habitats, but not on contaminants in sediments from the stream bottom. Biological condition was also significantly dependent on physical habitat quality; regression analysis on both contaminants and physical quality yielded the best regression model (r2 = 0.49). Similar biological impairment was observed at sites with severe contamination or physical impairment or with moderate chemical and physical impairment. These results have implications for the management of urban streams. JF - Environmental toxicology and chemistry AU - Rogers, Catriona E AU - Brabander, Daniel J AU - Barbour, Michael T AU - Hemond, Harold F AD - Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge 02139, USA. rogers.catriona@epa.gov Y1 - 2002/06// PY - 2002 DA - June 2002 SP - 1156 EP - 1167 VL - 21 IS - 6 SN - 0730-7268, 0730-7268 KW - Water Pollutants KW - 0 KW - Index Medicus KW - Regression Analysis KW - Cities KW - Animals KW - Population Dynamics KW - Plants KW - Boston KW - Risk Assessment KW - Ecosystem KW - Water Pollutants -- adverse effects KW - Invertebrates KW - Environmental Monitoring -- methods KW - Conservation of Natural Resources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71830012?accountid=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+toxicology+and+chemistry&rft.atitle=Use+of+physical%2C+chemical%2C+and+biological+indices+to+assess+impacts+of+contaminants+and+physical+habitat+alteration+in+urban+streams.&rft.au=Rogers%2C+Catriona+E%3BBrabander%2C+Daniel+J%3BBarbour%2C+Michael+T%3BHemond%2C+Harold+F&rft.aulast=Rogers&rft.aufirst=Catriona&rft.date=2002-06-01&rft.volume=21&rft.issue=6&rft.spage=1156&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 completed - 2002-11-19 N1 - Date created - 2002-06-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Determining probable causes of ecological impairment in the Little Scioto River, Ohio, USA: part 1. Listing candidate causes and analyzing evidence. AN - 71829948; 12069294 AB - The Little Scioto River in north-central Ohio, USA, is considered to be biologically impaired based on the results of fish and invertebrate surveys. The causes for these impairments were evaluated by means of a formal method. Two of the impairments identified on the stream reach were characterized in detail to support the causal assessment. A list of six candidate causes was developed that included habitat alteration, polycyclic aromatic hydrocarbon contamination, metals contamination, low dissolved oxygen, ammonia toxicity, and nutrient enrichment. Evidence for the causal evaluation was developed with data from the site that associated each candidate cause with the biological responses. Evidence was also developed that drew on data from other locations and laboratory studies, including comparisons of site exposures with screening values and criteria. The formal method increased the transparency of the assessment; candidate causes were clearly listed and the pathways by which they may have produced effects were shown. Analysis of the evidence maximized the utility of available data, which were collected as part of monitoring and research programs rather than to specifically support a causal assessment. This case study illustrates how the stressor identification method can be used to draw conclusions from available data about the most likely causes of impairment and to show what additional studies would be useful. JF - Environmental toxicology and chemistry AU - Norton, Susan B AU - Cormier, Susan M AU - Suter, Glenn W AU - Subramanian, Bhagya AU - Lin, Edith AU - Altfater, David AU - Counts, Bernie AD - U.S. Environmental Protection Agency, National Center for Environmental Assessment, Washington, DC 20460, USA. norton.susan@epa.gov Y1 - 2002/06// PY - 2002 DA - June 2002 SP - 1112 EP - 1124 VL - 21 IS - 6 SN - 0730-7268, 0730-7268 KW - Polycyclic Aromatic Hydrocarbons KW - 0 KW - Water Pollutants, Chemical KW - Index Medicus KW - Animals KW - Reproducibility of Results KW - Population Dynamics KW - Fishes KW - Invertebrates KW - Research Design KW - Risk Assessment KW - Ohio KW - Ecosystem KW - Water Pollutants, Chemical -- adverse effects KW - Polycyclic Aromatic Hydrocarbons -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71829948?accountid=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+toxicology+and+chemistry&rft.atitle=Determining+probable+causes+of+ecological+impairment+in+the+Little+Scioto+River%2C+Ohio%2C+USA%3A+part+1.+Listing+candidate+causes+and+analyzing+evidence.&rft.au=Norton%2C+Susan+B%3BCormier%2C+Susan+M%3BSuter%2C+Glenn+W%3BSubramanian%2C+Bhagya%3BLin%2C+Edith%3BAltfater%2C+David%3BCounts%2C+Bernie&rft.aulast=Norton&rft.aufirst=Susan&rft.date=2002-06-01&rft.volume=21&rft.issue=6&rft.spage=1112&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 completed - 2002-11-19 N1 - Date created - 2002-06-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Cancer risk assessment, indicators, and guidelines for polycyclic aromatic hydrocarbons in the ambient air. AN - 71814442; 12060843 AB - Polycyclic aromatic hydrocarbons (PAHs) are formed during incomplete combustion. Domestic wood burning and road traffic are the major sources of PAHs in Sweden. In Stockholm, the sum of 14 different PAHs is 100-200 ng/m(3) at the street-level site, the most abundant being phenanthrene. Benzo[a]pyrene (B[a]P) varies between 1 and 2 ng/m(3). Exposure to PAH-containing substances increases the risk of cancer in humans. The carcinogenicity of PAHs is associated with the complexity of the molecule, i.e., increasing number of benzenoid rings, and with metabolic activation to reactive diol epoxide intermediates and their subsequent covalent binding to critical targets in DNA. B[a]P is the main indicator of carcinogenic PAHs. Fluoranthene is an important volatile PAH because it occurs at high concentrations in ambient air and because it is an experimental carcinogen in certain test systems. Thus, fluoranthene is suggested as a complementary indicator to B[a]P. The most carcinogenic PAH identified, dibenzo[a,l]pyrene, is also suggested as an indicator, although it occurs at very low concentrations. Quantitative cancer risk estimates of PAHs as air pollutants are very uncertain because of the lack of useful, good-quality data. According to the World Health Organization Air Quality Guidelines for Europe, the unit risk is 9 X 10(-5) per ng/m(3) of B[a]P as indicator of the total PAH content, namely, lifetime exposure to 0.1 ng/m(3) would theoretically lead to one extra cancer case in 100,000 exposed individuals. This concentration of 0.1 ng/m(3) of B[a]P is suggested as a health-based guideline. Because the carcinogenic potency of fluoranthene has been estimated to be approximately 20 times less than that of B[a]P, a tentative guideline value of 2 ng/m(3) is suggested for fluoranthene. Other significant PAHs are phenanthrene, methylated phenanthrenes/anthracenes and pyrene (high air concentrations), and large-molecule PAHs such as dibenz[a,h]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, and indeno[1,2,3-cd]pyrene (high carcinogenicity). Additional source-specific indicators are benzo[ghi]perylene for gasoline vehicles, retene for wood combustion, and dibenzothiophene and benzonaphthothiophene for sulfur-containing fuels. JF - Environmental health perspectives AU - Boström, Carl-Elis AU - Gerde, Per AU - Hanberg, Annika AU - Jernström, Bengt AU - Johansson, Christer AU - Kyrklund, Titus AU - Rannug, Agneta AU - Törnqvist, Margareta AU - Victorin, Katarina AU - Westerholm, Roger AD - Swedish Environmental Protection Agency, Stockholm, Sweden. Y1 - 2002/06// PY - 2002 DA - June 2002 SP - 451 EP - 488 VL - 110 Suppl 3 SN - 0091-6765, 0091-6765 KW - Air Pollutants KW - 0 KW - Biomarkers, Tumor KW - Polycyclic Aromatic Hydrocarbons KW - Index Medicus KW - Environmental Monitoring KW - Public Health KW - Humans KW - Cell Transformation, Neoplastic KW - Risk Assessment KW - Environmental Exposure KW - Biomarkers, Tumor -- analysis KW - Polycyclic Aromatic Hydrocarbons -- adverse effects KW - Guidelines as Topic KW - Air Pollutants -- adverse effects KW - Neoplasms -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71814442?accountid=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=Cancer+risk+assessment%2C+indicators%2C+and+guidelines+for+polycyclic+aromatic+hydrocarbons+in+the+ambient+air.&rft.au=Bostr%C3%B6m%2C+Carl-Elis%3BGerde%2C+Per%3BHanberg%2C+Annika%3BJernstr%C3%B6m%2C+Bengt%3BJohansson%2C+Christer%3BKyrklund%2C+Titus%3BRannug%2C+Agneta%3BT%C3%B6rnqvist%2C+Margareta%3BVictorin%2C+Katarina%3BWesterholm%2C+Roger&rft.aulast=Bostr%C3%B6m&rft.aufirst=Carl-Elis&rft.date=2002-06-01&rft.volume=110+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 - 2002-07-12 N1 - Date created - 2002-06-12 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Cancer Res. 2000 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[10647931] Cancer Epidemiol Biomarkers Prev. 2000 Feb;9(2):207-12 [10698483] Cancer Epidemiol Biomarkers Prev. 1999 Aug;8(8):675-82 [10744127] Risk Anal. 1999 Apr;19(2):309-20 [10765407] J Natl Cancer Inst. 2000 May 17;92(10):803-11 [10814675] Cancer Epidemiol Biomarkers Prev. 2000 Jul;9(7):733-9 [10919745] Rapid Commun Mass Spectrom. 2000;14(18):1644-53 [10962485] J Cancer Res Clin Oncol. 1989;115(1):67-72 [2921274] Q Rev Biophys. 1989 Feb;22(1):1-37 [2501820] Toxicol Ind Health. 1989 Oct;5(5):851-67 [2683227] Food Chem Toxicol. 1990 Apr;28(4):263-8 [2358252] Drug Metab Rev. 1990;22(1):1-85 [2199176] Br J Ind Med. 1990 Jul;47(7):448-53 [2383513] Scand J Work Environ Health. 1990 Oct;16(5):348-54 [1701566] Cancer Res. 1991 Mar 15;51(6):1659-67 [1900215] Int J Cancer. 1991 Mar 12;47(5):681-5 [1848536] Carcinogenesis. 1991 May;12(5):783-6 [2029742] Science. 1991 Jul 5;253(5015):49-53 [1905840] Adv Exp Med Biol. 1991;283:533-53 [2069024] Regul Toxicol Pharmacol. 1991 Apr;13(2):170-84 [1852928] Fundam Appl Toxicol. 1991 Apr;16(3):517-24 [1855623] Chem Res Toxicol. 1990 Mar-Apr;3(2):111-7 [2130937] Carcinogenesis. 1991 Oct;12(10):1939-44 [1934274] Carcinogenesis. 1991 Nov;12(11):2007-15 [1657432] Mol Pharmacol. 1991 Nov;40(5):674-8 [1658604] Nutr Cancer. 1991;16(3-4):209-18 [1663613] Chem Res Toxicol. 1989 Sep-Oct;2(5):280-1 [2519818] Carcinogenesis. 1992 Feb;13(2):303-5 [1740022] Carcinogenesis. 1992 Jul;13(7):1075-81 [1322250] Trends Pharmacol Sci. 1992 Sep;13(9):346-52 [1529480] Jpn J Cancer Res. 1992 Aug;83(8):866-70 [1399823] Nature. 1992 Nov 19;360(6401):256-8 [1436106] J Environ Sci Health B. 1992 Dec;27(6):729-49 [1460244] Arch Toxicol. 1992;66(8):538-45 [1463388] Chem Res Toxicol. 1992 Nov-Dec;5(6):779-86 [1489928] Drug Metab Dispos. 1993 Jan-Feb;21(1):1-6 [8095200] Regul Toxicol Pharmacol. 1992 Dec;16(3):290-300 [1293646] Carcinogenesis. 1993 May;14(5):875-8 [8504480] Br J Ind Med. 1993 May;50(5):450-9 [8507598] Epidemiology. 1993 May;4(3):237-44 [7685637] Cancer Res. 1993 Jul 15;53(14):3294-301 [8324741] Toxicol Appl Pharmacol. 1993 Aug;121(2):313-8 [8346548] Ann N Y Acad Sci. 1993 Jun 23;685:624-40 [8395783] Carcinogenesis. 1993 Sep;14(9):1871-4 [8403212] Arch Toxicol. 1993;67(7):468-72 [8239995] Am J Epidemiol. 1994 Feb 1;139(3):250-62 [8116600] Carcinogenesis. 1994 Mar;15(3):557-60 [8118943] Chem Biol Interact. 1994 Apr;91(1):15-27 [8194122] Toxicol Lett. 1994 Jun;72(1-3):155-61 [8202928] J Biol Chem. 1987 Nov 15;262(32):15422-7 [2824460] J Chromatogr B Biomed Appl. 1994 Oct 3;660(1):67-73 [7858725] Int Arch Occup Environ Health. 1994;66(5):343-8 [7896420] Sci Total Environ. 1995 Feb 24;163(1-3):164-8 [7716494] Teratology. 1994 Nov;50(5):361-6 [7716743] Carcinogenesis. 1995 Apr;16(4):855-60 [7728967] Carcinogenesis. 1995 Jun;16(6):1433-5 [7788865] J Occup Environ Med. 1995 May;37(5):597-604 [7640988] Food Addit Contam. 1995 Sep-Oct;12(5):703-13 [8522036] Cancer Res. 1996 Jan 1;56(1):72-6 [8548778] Pharmacogenetics. 1996 Feb;6(1):1-42 [8845856] Carcinogenesis. 1996 Aug;17(8):1701-4 [8761429] Chem Res Toxicol. 1996 Jan-Feb;9(1):197-207 [8924591] Science. 1996 Oct 18;274(5286):430-2 [8832894] Chemosphere. 1996 Feb;32(4):639-48 [8867146] Mutat Res. 1996 Oct 28;358(1):97-112 [8921980] Biochem Pharmacol. 1996 Nov 22;52(10):1599-612 [8937476] Fundam Appl Toxicol. 1996 Dec;34(2):260-4 [8954755] Environ Health Perspect. 1996 Nov;104(11):1166-70 [8959405] Carcinogenesis. 1996 Nov;17(11):2389-94 [8968053] Chem Res Toxicol. 1997 Feb;10(2):111-46 [9049424] Am J Respir Cell Mol Biol. 1997 Mar;16(3):242-9 [9070608] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Infant exposure to dioxin-like compounds in breast milk. AN - 71797090; 12055063 AB - We used a one-compartment, first-order pharmacokinetic model to predict the infant body burden of dioxin-like compounds that results from breast-feeding. Validation testing of the model showed a good match between predictions and measurements of dioxin toxic equivalents (TEQs) in breast-fed infants, and the exercise highlighted the importance of the assumption of the rate of dissipation of TEQs in the infant. We evaluated five nursing scenarios: no nursing (i.e., formula only), and nursing for 6 weeks, 6 months, 1 year, and 2 years. We assumed that an infant weighs 3.3 kg at birth and is exposed to a total of 800 pg TEQ/day by consumption of breast milk, leading to an estimated body weight-based dose of 242 pg TEQ/kg-day, which drops to 18 pg TEQ/kg-day after 1 year. This decline is due to declines in dioxin concentration in mother's milk and infant body weight increases. This range is significantly higher, on a body-weight basis, than adult TEQ exposure, which has been estimated to average about 1 pg TEQ/kg-day. For the nursing scenarios of >or= 6 months, we predict that body burdens (expressed as a body lipid concentration) peak at around 9 weeks at 44 ppt TEQ lipid. We predict that the body burden of the formula-fed infants will remain below 10 ppt TEQ lipid during the first year. These results compare to the current adult average body burden of 25 ppt TEQ lipid. We also found that an infant who had been breast-fed for 1 year had an accumulated dose 6 times higher than a 1-year-old infant who had not been breast-fed. For a 70-year lifetime, individuals who had been breast-fed had an accumulated dose 3-18% higher than individuals who had not been breast-fed. JF - Environmental health perspectives AU - Lorber, Matthew AU - Phillips, Linda AD - National Center for Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, Washington, DC 20460, USA. lorber.matthew@epa.gov Y1 - 2002/06// PY - 2002 DA - June 2002 SP - A325 EP - A332 VL - 110 IS - 6 SN - 0091-6765, 0091-6765 KW - Dioxins KW - 0 KW - Environmental Pollutants KW - Index Medicus KW - Infant KW - Body Weight KW - Humans KW - Body Burden KW - Adult KW - Infant, Newborn KW - Models, Chemical KW - Forecasting KW - Time Factors KW - Male KW - Female KW - Dioxins -- pharmacokinetics KW - Milk, Human -- chemistry KW - Dioxins -- analysis KW - Breast Feeding KW - Environmental Exposure KW - Infant Welfare KW - Environmental Pollutants -- analysis KW - Environmental Pollutants -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71797090?accountid=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=Infant+exposure+to+dioxin-like+compounds+in+breast+milk.&rft.au=Lorber%2C+Matthew%3BPhillips%2C+Linda&rft.aulast=Lorber&rft.aufirst=Matthew&rft.date=2002-06-01&rft.volume=110&rft.issue=6&rft.spage=A325&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 - 2002-07-23 N1 - Date created - 2002-06-10 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: J Toxicol Environ Health A. 2000 Apr 28;59(8):605-39 [10839496] Environ Res. 1999 Feb;80(2 Pt 2):S19-S25 [10092416] Risk Anal. 1987 Sep;7(3):347-53 [3685542] Toxicol Appl Pharmacol. 1988 Mar 30;93(1):22-30 [3353999] Toxicol Appl Pharmacol. 1995 Apr;131(2):253-66 [7716767] Toxicol Appl Pharmacol. 1995 Apr;131(2):267-76 [7716768] J Toxicol Environ Health. 1996 Mar;47(4):363-78 [8600289] J Toxicol Environ Health. 1996 Feb 23;47(3):209-20 [8604146] Chemosphere. 1996 Dec;33(12):2373-81 [8976054] Arch Toxicol. 1997;71(6):383-400 [9195020] Am J Public Health. 1997 Oct;87(10):1711-4 [9357362] J Expo Anal Environ Epidemiol. 1998 Apr-Jun;8(2):187-206 [9577750] Environ Health Perspect. 1998 May;106(5):279-89 [9560354] Chemosphere. 1998 Oct-Nov;37(9-12):1657-70 [9828295] Chemosphere. 1998 Oct-Nov;37(9-12):1731-41 [9828301] Environ Health Perspect. 1998 Dec;106(12):775-92 [9831538] Environ Health Perspect. 1999 Jan;107(1):45-51 [9872716] J Expo Anal Environ Epidemiol. 2000 Nov-Dec;10(6 Pt 1):579-85 [11140441] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effects of benzo[a]pyrene exposure on a fish population resistant to the toxic effects of dioxin-like compounds. AN - 71613528; 11932001 AB - Effects of a model polycyclic aromatic hydrocarbon (PAH) were compared in populations of the estuarine fish Fundulus heteroclitus indigenous to a reference site and one highly contaminated with polychlorinated biphenyls (PCBs) and other compounds. The fish population resident to the PCB-contaminated site is genetically resistant to those PCB congeners categorized as dioxin-like compounds (DLCs) that act through the aryl hydrocarbon receptor (AHR). In response to DLC exposures, these DLC-resistant fish showed poor inducibility for enzymes known to be regulated by the AHR pathway and important for the metabolism of xenobiotics including some PAHs that also act as AHR agonists. Therefore, a laboratory study using the model PAH, benzo[a]pyrene (BaP), was conducted to evaluate how PAHs might affect these wild fish populations that differed in their inherent sensitivities to DLCs and in their tissue concentrations of contaminants. Following BaP treatment, the activities of two xenobiotic metabolizing enzymes and the concentrations of BaP-DNA adducts, as measured using the 32P-postlabeling method, were lower in the livers of DLC-resistant than reference fish. These results suggest that DLC-resistance could provide protection following chronic exposures to PAHs from the long-term consequences of DNA adduct formation, such as cancer. Alternatively, reduced metabolism and elimination of toxic or photo-activated PAHs could have acute consequences to the health and reproduction of these DLC-resistant fish and their progeny. These fish populations provide useful models to evaluate the potential costs and benefits of genetic adaptation in wildlife populations subject to anthropogenic stress. JF - Aquatic toxicology (Amsterdam, Netherlands) AU - Nacci, Diane E AU - Kohan, Michael AU - Pelletier, Marguerite AU - George, Elizabeth AD - US Environmental Protection Agency, Office of Research and Development, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA. nacci.diane@epa.gov Y1 - 2002/06// PY - 2002 DA - June 2002 SP - 203 EP - 215 VL - 57 IS - 4 SN - 0166-445X, 0166-445X KW - DNA Adducts KW - 0 KW - Dioxins KW - Environmental Pollutants KW - Receptors, Aryl Hydrocarbon KW - Xenobiotics KW - Benzo(a)pyrene KW - 3417WMA06D KW - Polychlorinated Biphenyls KW - DFC2HB4I0K KW - Cytochrome P-450 CYP1A1 KW - EC 1.14.14.1 KW - Index Medicus KW - Animals KW - Sex Factors KW - Xenobiotics -- metabolism KW - Polychlorinated Biphenyls -- toxicity KW - Cytochrome P-450 CYP1A1 -- metabolism KW - Tissue Distribution KW - Dioxins -- toxicity KW - DNA Adducts -- metabolism KW - Adaptation, Physiological KW - Receptors, Aryl Hydrocarbon -- metabolism KW - Female KW - Male KW - Cytochrome P-450 CYP1A1 -- drug effects KW - Liver -- enzymology KW - Fundulidae -- metabolism KW - Environmental Pollutants -- toxicity KW - Fundulidae -- genetics KW - Benzo(a)pyrene -- toxicity KW - Fundulidae -- physiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71613528?accountid=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=&rft.atitle=Estimated+Chesapeake+Bay+water+quality+and+living+resource+response+to+different+nutrient+and+sediment+loads&rft.au=Linker%2C+L&rft.aulast=Linker&rft.aufirst=L&rft.date=2002-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-08-06 N1 - Date created - 2002-04-04 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A digital elevation model for the Nogoa River catchment, Queensland; challenges and solutions AN - 52036473; 2003-002406 AB - The Nogoa River catchment in the Fitzroy Basin is a very significant contributor to the Queensland economy. The topographical complexity of this catchment requires efficient and effective management of the environment to sustain both economic and ecological benefits. Information on terrain shape and drainage structure is important in developing sustainable management practices. This paper outlines the methods used and the challenges faced during the development of a Digital Elevation Model (DEM) for the Nogoa River catchment. It is also intended to assist those involved in DEM creation to understand potential problems and to plan ahead to maximise-efficiency. JF - Cartography AU - Adsett, K AU - Leslie, M AU - Hewavisenthi, S AU - Hewavisenthi, C AU - Anonymous Y1 - 2002/06// PY - 2002 DA - June 2002 SP - 109 EP - 114 PB - Australian Institute of Cartographers, Canberra, A.C.T. VL - 31 IS - 1 SN - 0069-0805, 0069-0805 KW - hydrology KW - Nogoa River basin KW - land cover KW - Fitzroy Basin KW - Australasia KW - elevation KW - rivers and streams KW - mapping KW - digital terrain models KW - topography KW - geographic information systems KW - Queensland Australia KW - fluvial features KW - drainage basins KW - streams KW - information systems KW - Australia KW - braided streams KW - land use KW - 23:Geomorphology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52036473?accountid=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=Cartography&rft.atitle=A+digital+elevation+model+for+the+Nogoa+River+catchment%2C+Queensland%3B+challenges+and+solutions&rft.au=Adsett%2C+K%3BLeslie%2C+M%3BHewavisenthi%2C+S%3BHewavisenthi%2C+C%3BAnonymous&rft.aulast=Adsett&rft.aufirst=K&rft.date=2002-06-01&rft.volume=31&rft.issue=1&rft.spage=109&rft.isbn=&rft.btitle=&rft.title=Cartography&rft.issn=00690805&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Mapping Sciences 2002 conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 7 N1 - PubXState - A.C.T. N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - CRTGAI N1 - SubjectsTermNotLitGenreText - Australasia; Australia; braided streams; digital terrain models; drainage basins; elevation; Fitzroy Basin; fluvial features; geographic information systems; hydrology; information systems; land cover; land use; mapping; Nogoa River basin; Queensland Australia; rivers and streams; streams; topography ER - TY - JOUR T1 - Characterization and FATE of PAH-contaminated sediments at the Wyckoff/Eagle Harbor Superfund Site AN - 51840632; 2004-044985 JF - Environmental Science & Technology, ES & T AU - Brenner, Richard C AU - Magar, Victor S AU - Ickes, Jennifer A AU - Abbott, James E AU - Stout, Scott A AU - Crecelius, Eric A AU - Bingler, Linda S Y1 - 2002/06// PY - 2002 DA - June 2002 SP - 2605 EP - 2613 PB - American Chemical Society, Washington, DC VL - 36 IS - 12 SN - 0013-936X, 0013-936X KW - United States KW - sorption KW - shallow-water environment KW - degradation KW - creosote KW - chemical waste KW - urbanization KW - environmental analysis KW - seepage KW - urban environment KW - remediation KW - human ecology KW - waste management KW - Puget Sound KW - toxicity KW - sedimentation rates KW - sediments KW - natural attenuation KW - discharge KW - Superfund sites KW - hydrology KW - concentration KW - Wyckoff/Eagle Harbor Site KW - Washington KW - pollutants KW - sedimentation KW - harbors KW - pollution KW - King County Washington KW - nearshore environment KW - bioremediation KW - weathering KW - biota KW - habitat KW - organic compounds KW - Seattle Washington KW - runoff KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - coastal environment KW - risk assessment KW - Bainbridge Island KW - aquatic environment KW - land use KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51840632?accountid=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=Characterization+and+FATE+of+PAH-contaminated+sediments+at+the+Wyckoff%2FEagle+Harbor+Superfund+Site&rft.au=Brenner%2C+Richard+C%3BMagar%2C+Victor+S%3BIckes%2C+Jennifer+A%3BAbbott%2C+James+E%3BStout%2C+Scott+A%3BCrecelius%2C+Eric+A%3BBingler%2C+Linda+S&rft.aulast=Brenner&rft.aufirst=Richard&rft.date=2002-06-01&rft.volume=36&rft.issue=12&rft.spage=2605&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 - 31 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aquatic environment; aromatic hydrocarbons; Bainbridge Island; bioremediation; biota; chemical waste; coastal environment; concentration; creosote; degradation; discharge; environmental analysis; habitat; harbors; human ecology; hydrocarbons; hydrology; King County Washington; land use; natural attenuation; nearshore environment; organic compounds; pollutants; pollution; polycyclic aromatic hydrocarbons; Puget Sound; remediation; risk assessment; runoff; Seattle Washington; sedimentation; sedimentation rates; sediments; seepage; shallow-water environment; sorption; Superfund sites; toxicity; United States; urban environment; urbanization; Washington; waste management; weathering; Wyckoff/Eagle Harbor Site ER - TY - JOUR T1 - Scientific considerations related to regulation development for CO (sub 2) sequestration in brine formations AN - 51169617; 2002-054610 JF - Environmental Geology (Berlin) AU - Tsang, Chin-Fu AU - Benson, Sally M AU - Kobelski, Bruce AU - Smith, Robert E AU - Shestakov, Vsevolod M Y1 - 2002/06// PY - 2002 DA - June 2002 SP - 275 EP - 281 PB - Springer International, Berlin VL - 42 IS - 2-3 SN - 0943-0105, 0943-0105 KW - United States KW - experimental studies KW - monitoring KW - contaminant plumes KW - regulations KW - injection KW - pollution KW - research KW - ground water KW - carbon dioxide KW - aquifers KW - physical properties KW - safety KW - viscosity KW - liquid waste KW - brines KW - chemical properties KW - policy KW - waste disposal KW - leaching KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51169617?accountid=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+Geology+%28Berlin%29&rft.atitle=Scientific+considerations+related+to+regulation+development+for+CO+%28sub+2%29+sequestration+in+brine+formations&rft.au=Tsang%2C+Chin-Fu%3BBenson%2C+Sally+M%3BKobelski%2C+Bruce%3BSmith%2C+Robert+E%3BShestakov%2C+Vsevolod+M&rft.aulast=Tsang&rft.aufirst=Chin-Fu&rft.date=2002-06-01&rft.volume=42&rft.issue=2-3&rft.spage=275&rft.isbn=&rft.btitle=&rft.title=Environmental+Geology+%28Berlin%29&rft.issn=09430105&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1432-0495/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 35 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; brines; carbon dioxide; chemical properties; contaminant plumes; experimental studies; ground water; injection; leaching; liquid waste; monitoring; physical properties; policy; pollution; regulations; research; safety; United States; viscosity; waste disposal ER - TY - JOUR T1 - Phytoremediation: An ecological solution to organic chemical contamination AN - 20970931; 5449039 AB - Phytoremediation is a promising new technology that uses plants to degrade, assimilate, metabolize, or detoxify metals, hydrocarbons, pesticides, and chlorinated solvents. In this review, in situ, in vivo and in vitro methods of application are described for remediation of these compounds. Phytoaccumulation, phytoextraction, phytostabilization, phytotransformation, phytovolatilization and rhizodegradation are discussed and the role of enzymes in transforming organic chemicals in plants is presented. The advantages and constraints of phytoremediation are provided. Our conclusions is that phytoremediation prescriptions must be site-specific; however, these applications have the potential for providing the most cost-effective and resource-conservative approach for remediating sites contaminated with a variety of hazardous chemicals. JF - Ecological Engineering AU - Susarla, S AU - Medina, V F AU - McCutcheon, S C AD - GeoSyntec Consultants, 1100 Lake Hearn Dr., N.E., Suite 200, Atlanta, GA 30342, USA, Mccutcheon.Steven@epamail.epa.gov Y1 - 2002/06// PY - 2002 DA - Jun 2002 SP - 647 EP - 658 VL - 18 IS - 5 SN - 0925-8574, 0925-8574 KW - Phytoremediation KW - Biotechnology and Bioengineering Abstracts; Pollution Abstracts; Ecology Abstracts KW - Detoxification KW - Organochlorine compounds KW - Bioremediation KW - Contamination KW - Economics KW - Wetlands KW - Chemical pollution KW - phytoremediation KW - Rivers KW - Pollutant removal KW - Metals KW - Hydrocarbons KW - Solvents KW - Enzymes KW - Reviews KW - Pesticides KW - Plants KW - Environmental restoration KW - Environment management KW - W 30950:Waste Treatment & Pollution Clean-up KW - P 5000:LAND POLLUTION KW - D 04804:Pollution control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20970931?accountid=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=Ecological+Engineering&rft.atitle=Phytoremediation%3A+An+ecological+solution+to+organic+chemical+contamination&rft.au=Susarla%2C+S%3BMedina%2C+V+F%3BMcCutcheon%2C+S+C&rft.aulast=Susarla&rft.aufirst=S&rft.date=2002-06-01&rft.volume=18&rft.issue=5&rft.spage=647&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 - 2002-10-01 N1 - SuppNotes - Special Issue: Ecology engineering applied to river and wetland restoration. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Rivers; Metals; Bioremediation; Organochlorine compounds; Contamination; Hydrocarbons; Solvents; Enzymes; Reviews; Pesticides; Economics; Plants; Environmental restoration; Wetlands; phytoremediation; Environment management; Detoxification; Pollutant removal; Phytoremediation; Chemical pollution ER - TY - JOUR T1 - Cosolvent effects on sorption isotherm linearity AN - 19389518; 5403827 AB - Sorption-desorption hysteresis, slow desorption kinetics, and other nonideal phenomena have been attributed to the differing sorptive characteristics of the natural organic polymers associated with soils and sediments. In this study, aqueous and mixed solvent systems were used to investigate the effects of a cosolvent, methanol, on sorption isotherm linearity with natural organic matter (NOM), and to evaluate whether these results support, or weaken, the rubbery/glassy polymer conceptualization of NOM. All of the sorption isotherms displayed some nonlinear character. Our data indicates that all of the phenanthrene and atrazine isotherms were nonlinear up to the highest equilibrium solution concentration to solute solubility in water or cosolvent ratios (C sub(e)/S sub(w,c)) used, approximately 0.018 and 0.070, respectively. Isotherm linearity was also observed to increase with volumetric methanol content (f sub(c)). This observation is consistent with the NOM rubbery/glassy polymer conceptualization: the presence of methanol in NOM increased isotherm linearity as do solvents in synthetic polymers, and suggests that methanol is interacting with the NOM, enhancing its homogeneity as a sorptive phase so that sorption is less bimodal as f sub(c) increases. When the equilibrium solution concentration was normalized for solute solubility in water or methanol-water solutions, greater relative sorption magnitude was observed for the methanol-water treatments. This observation, in conjunction with the faster sorption kinetics observed in the methanol-water sediment column systems, indicates that the increase in relative sorption magnitude with f sub(c) may be attributed to the faster sorption kinetics in the methanol-water systems, and hence, greater relative sorptive uptake for the rubbery polymer fraction of NOM at similar time scales. JF - Journal of Contaminant Hydrology AU - Bouchard, D C AD - US Environmental Protection Agency, Ecosystems Research Division, 960 College Station Road, Athens, GA 30605, USA, bouchard.dermont@epa.gov Y1 - 2002/06// PY - 2002 DA - June 2002 SP - 159 EP - 174 VL - 56 IS - 3-4 SN - 0169-7722, 0169-7722 KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Theoretical Analysis KW - Path of Pollutants KW - Methanol KW - Pollution dispersion KW - Groundwater Pollution KW - Polymers (see also Polyelectrolytes) KW - Solutes KW - Organic Matter KW - Hydrology KW - Isotherms KW - Experimental Data KW - Sorption KW - Sediment chemistry KW - Organic matter KW - Solvents KW - Herbicides KW - Pollution (Groundwater) KW - Kinetics KW - Groundwater pollution KW - Sorption (see also Absorption, Adsorption) KW - Polymers 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/19389518?accountid=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+Contaminant+Hydrology&rft.atitle=Cosolvent+effects+on+sorption+isotherm+linearity&rft.au=Bouchard%2C+D+C&rft.aulast=Bouchard&rft.aufirst=D&rft.date=2002-06-01&rft.volume=56&rft.issue=3-4&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Sediment chemistry; Solutes; Sorption; Organic matter; Solvents; Hydrology; Herbicides; Isotherms; Kinetics; Pollution dispersion; Groundwater pollution; Pollution (Groundwater); Methanol; Sorption (see also Absorption, Adsorption); Polymers (see also Polyelectrolytes); Theoretical Analysis; Experimental Data; Organic Matter; Path of Pollutants; Groundwater Pollution; Polymers ER - TY - JOUR T1 - Interim definition of stressed basins in Massachusetts AN - 18475908; 5443756 AB - A definition of a stressed river basin for Massachusetts has been proposed to help regulators and project proponents anticipate areas of the State in which water supply withdrawal or sewer projects may result in a significant environmental impact. Stressed areas were determined by comparing low flow statistics for 67 rivers in 23 of the 27 major river basins. A second method based on a simplified water use budget was outlined which could be easily applied on a case by case basis to smaller sub-basins or areas with no data. Net sub-basin water losses can be compared to estimated-streamflows to determine stress. JF - Journal of New England Water Works Association AU - Gartland, V J AD - Massachusetts Water Resources Commission, Office of Water Resources, Department of Environmental Management, Boston, MA, USA Y1 - 2002/06// PY - 2002 DA - Jun 2002 SP - 93 EP - 114 VL - 116 IS - 2 SN - 0028-4939, 0028-4939 KW - USA, Massachusetts KW - Water Resources Abstracts KW - SW 4020:Evaluation process UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18475908?accountid=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+New+England+Water+Works+Association&rft.atitle=Interim+definition+of+stressed+basins+in+Massachusetts&rft.au=Gartland%2C+V+J&rft.aulast=Gartland&rft.aufirst=V&rft.date=2002-06-01&rft.volume=116&rft.issue=2&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Journal+of+New+England+Water+Works+Association&rft.issn=00284939&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 - The Effects of Atrazine Metabolites on Puberty and Thyroid Function in the Male Wistar Rat AN - 18446589; 5419962 AB - Recently we reported that atrazine (ATR), a chlorotriazine herbicide, alters the onset of puberty in male Wistar rats. In this study, we examined the same reproductive parameters in the developing male rat following a similar exposure to the primary, chlorinated metabolites of atrazine. Intact male Wistar rats were gavaged from postnatal day (PND) 23 through PND 53 and several reproductive endpoints were examined. The doses selected were the molar equivalents to atrazine in our previous work. Deethylatrazine (DEA), deisopropyl-atrazine (DIA), and diaminochlorotriazine (DACT) were administered by gavage at doses equivalent to the atrazine equimolar doses (AED) of 6.25, 12.5, 25, 50, 100, or 200 mg/kg. Preputial separation (PPS) was significantly delayed by DEA at 25, 100, and 200 AED, by DIA at 25, 100, and 200 AED, and by DACT at 12.5 through 200 AED. When the males were killed on PND 53, DEA (100 and 200 AED), DIA (50 through 200 AED), and DACT (200 AED) treatments caused a significant reduction in ventral prostate weight, while only the highest doses of DIA and DEA resulted in a significant decrease in lateral prostate weight. Seminal vesicle weight was reduced by DEA (25, 100, and 200 AED), DIA (100 and 200 AED), and 100 and 200 AED of DACT. Epididymal weights were reduced in the DEA (200 AED), DIA (200 AED), and DACT (100 and 200 AED) treatment groups. Serum testosterone was reduced only in the males receiving the 2 highest doses of DIA. Serum estrone was increased in the 2 highest doses of the DACT group, while serum estradiol was not different in any group. No differences were observed in any of the thyroid measures. In summary, the metabolites of ATR delay puberty in a manner similar to that observed in the previous study testing atrazine. These data also suggest that the 3 chlorinated metabolites are similar to ATR, by affecting the CNS control of the pituitary/gonadal axis and subsequent development of the reproductive tract. JF - Toxicological Sciences AU - Stoker, TE AU - Guidici, D L AU - Laws, S C AU - Cooper, R L AD - Gamete and Early Embryo Biology Branch and Endocrinology Branch, Reproductive Toxicology Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA Y1 - 2002/06// PY - 2002 DA - Jun 2002 SP - 198 EP - 206 VL - 67 IS - 2 SN - 1096-6080, 1096-6080 KW - pituitary-gonadal system KW - rats KW - Toxicology Abstracts KW - X 24135:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18446589?accountid=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+Metabolites+on+Puberty+and+Thyroid+Function+in+the+Male+Wistar+Rat&rft.au=Stoker%2C+TE%3BGuidici%2C+D+L%3BLaws%2C+S+C%3BCooper%2C+R+L&rft.aulast=Stoker&rft.aufirst=TE&rft.date=2002-06-01&rft.volume=67&rft.issue=2&rft.spage=198&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 ER - TY - JOUR T1 - Differential particulate air pollution induced oxidant stress in human granulocytes, monocytes and alveolar macrophages AN - 18432868; 5417440 AB - It has been proposed that oxidant stress of cells in the lung is one of the underlying mechanisms of particulate pollution-induced exacerbation of lung disease. Individuals who are considered most sensitive to particulate pollution are those with pre-existing airways inflammation, such as chronic obstructive pulmonary disease (COPD), lung infection or asthma. These diseases are characterized by a presence of inflammatory cells in the airways including neutrophils (PMN), eosinophils and monocytes (Mo), and increased numbers of alveolar macrophages (AM). These cells have a high capacity for production of oxygen radicals, as compared to other cell types of the lung. To assess the oxidative response of these various cell types to pollution particles of various sources, luminol-dependent chemiluminescence was employed. Particles including transition metal-rich residual oil fly ashes (ROFAs), coal fly ashes, diesel, SiO sub(2), TiO sub(2) and fugitive dusts were co-cultured with AM, Mo and PMN in a dose range of 10-100 mu g/2x10 super(5) cells and chemiluminescence determined following a 20-min interaction. A strong oxidant response of AM was restricted to oil fly ashes, while the PMN were most reactive to the dusts containing aluminium silicate. In general, the Mo response was less vigorous, but overlapped both AM- and PMN-stimulating dusts. However, in response to SiO sub(2) and volcanic ash the Mo chemiluminescence exceeded that of the other cell types. Oxygen radicals generated in response to ROFA by the AM were likely to be dependent on mitochondrial processes, while the response in PMN involved the membrane NADPH oxidase complex, as determined by targeting inhibitors. The response of AM to SiO sub(2) of various sizes and TiO sub(2) in the fine size range obtained from different commercial sources, was highly variable, implying that composition rather than size was responsible for the oxidant response. A strong chemiluminescence response was not consistently associated with cytotoxicity in the responsive cell. Taken together, these results suggest that oxidant activation by various sources of particulate matter is cell specific. Therefore, the inflamed lung is likely to be more susceptible to harm of ambient air particulates because of the oxidant stress posed by a broader range of particles. JF - Toxicology In Vitro AU - Becker, S AU - Soukup, J M AU - Gallagher, JE AD - US EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Research Triangle Park, NC 27711, USA, becker.susanne@epamail.epa.gov Y1 - 2002/06// PY - 2002 DA - Jun 2002 SP - 209 EP - 218 VL - 16 IS - 3 SN - 0887-2333, 0887-2333 KW - Toxicology Abstracts KW - X 24240:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18432868?accountid=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+In+Vitro&rft.atitle=Differential+particulate+air+pollution+induced+oxidant+stress+in+human+granulocytes%2C+monocytes+and+alveolar+macrophages&rft.au=Becker%2C+S%3BSoukup%2C+J+M%3BGallagher%2C+JE&rft.aulast=Becker&rft.aufirst=S&rft.date=2002-06-01&rft.volume=16&rft.issue=3&rft.spage=209&rft.isbn=&rft.btitle=&rft.title=Toxicology+In+Vitro&rft.issn=08872333&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 - A methodology for inferring the causes of observed impairments in aquatic ecosystems AN - 18421729; 5403016 AB - Biological surveys have become a common technique for determining whether aquatic communities have been injured. However, their results are not useful for identifying management options until the causes of apparent injuries have been identified. Techniques for determining causation have been largely informal and ad hoc. This paper presents a logical system for causal inference. It begins by analyzing the available information to generate causal evidence; available information may include spatial or temporal associations of potential cause and effect, field or laboratory experimental results, and diagnostic evidence from the affected organisms. It then uses a series of three alternative methods to infer the cause: Elimination of causes, diagnostic protocols, and analysis of the strength of evidence. If the cause cannot be identified with sufficient confidence, the reality of the effects is examined, and if the effects are determined to be real, more information is obtained to reiterate the process. JF - Environmental Toxicology and Chemistry AU - Suter, GW II AU - Norton, S B AU - Cormier, S M AD - U.S. Environmental Protection Agency, National Center for Environmental Assessment, 26 W. Martin Luther King Dr., MS 117, Cincinnati, OH 45268, USA, suter.glenn@epa.gov Y1 - 2002/06// PY - 2002 DA - Jun 2002 SP - 1101 EP - 1111 VL - 21 IS - 6 SN - 0730-7268, 0730-7268 KW - Water Resources Abstracts; Aqualine Abstracts; Ecology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - D 04001:Methodology - general KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - Q5 01502:Methods and instruments KW - Q1 01382:Ecological techniques and apparatus KW - D 04300:Aquatic ecosystems - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18421729?accountid=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=A+methodology+for+inferring+the+causes+of+observed+impairments+in+aquatic+ecosystems&rft.au=Suter%2C+GW+II%3BNorton%2C+S+B%3BCormier%2C+S+M&rft.aulast=Suter&rft.aufirst=GW&rft.date=2002-06-01&rft.volume=21&rft.issue=6&rft.spage=1101&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 ER - TY - JOUR T1 - Predicting levels of stress from biological assessment data: Empirical models from the Eastern Corn Belt Plains, Ohio, USA AN - 18418792; 5403022 AB - Interest is increasing in using biological community data to provide information on the specific types of anthropogenic influences impacting streams. We built empirical models that predict the level of six different types of stress with fish and benthic macroinvertebrate data as explanatory variables. Significant models were found for six stressor factors: stream corridor structure; siltation; total suspended solids (TSS), biochemical oxygen demand (BOD), and iron (Fe); chemical oxygen demand (COD) and BOD; zinc (Zn) and lead (Pb); and nitrate and nitrite (NO sub(x)) and phosphorus (P). Model R super(2) values were lowest for the siltation factor and highest for TSS, BOD, and Fe. Model R super(2) values increased when spatial relationships were incorporated into the model. The models generally performed well when applied to a random subset of the data. Performance was more mixed when models were applied to data collected from a previous time period, perhaps because of a change in the spatial structure of these systems. These models may provide a useful indication of the levels of different stresses impacting stream reaches in the Eastern Corn Belt Plains ecoregion of Ohio, USA. More generally, the models provide additional evidence that biological communities can serve as useful indicators of the types of anthropogenic stress impacting aquatic systems. JF - Environmental Toxicology and Chemistry AU - Norton, S B AU - Cormier, S M AU - Smith, M AU - Jones, R C AU - Schubauer-Berigan, M AD - U.S. Environmental Protection Agency, National Center for Environmental Assessment, Washington, DC 20460, USA, norton.susan@epa.gov Y1 - 2002/06// PY - 2002 DA - Jun 2002 SP - 1168 EP - 1175 VL - 21 IS - 6 SN - 0730-7268, 0730-7268 KW - Pollution Abstracts; Ecology Abstracts; Entomology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Aqualine Abstracts KW - D 04803:Pollution effects KW - Q1 01422:Environmental effects KW - P 2000:FRESHWATER POLLUTION KW - Z 05210:Aquatic entomology KW - AQ 00008:Effects of Pollution KW - Q5 01504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18418792?accountid=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=Predicting+levels+of+stress+from+biological+assessment+data%3A+Empirical+models+from+the+Eastern+Corn+Belt+Plains%2C+Ohio%2C+USA&rft.au=Norton%2C+S+B%3BCormier%2C+S+M%3BSmith%2C+M%3BJones%2C+R+C%3BSchubauer-Berigan%2C+M&rft.aulast=Norton&rft.aufirst=S&rft.date=2002-06-01&rft.volume=21&rft.issue=6&rft.spage=1168&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 ER - TY - JOUR T1 - Response of a rare herb (Trioncinia retroflexa ) from semi-arid tropical grassland to occasional fire and grazing AN - 18409830; 5399991 AB - Trioncinia retroflexa (Asteraceae) is a rare perennial herb endemic to Dichanthium -dominated grasslands on basaltic soils in central Queensland. Trioncinia lives for approximately 5 years and some seed remains viable in the soil for at least 18 months. Population densities increased sixfold over 4 years, coinciding with recovery during a period of above-average rainfall after a 4-year drought preceding this study. The species' lifespan, which can exceed 5 years, coupled with its extended seed-bank viability ensures that populations can endure drought despite low levels of seedling recruitment. The restricted occurrence of the species to spasmodically grazed stock routes provides evidence that Trioncinia is sensitive to the continuous grazing that typically occurs in paddocks. The hypothesis that the species requires occasional disturbance for survival was experimentally tested. Recruitment was depressed with burning and inflorescence production enhanced with both burning and simulated intense spasmodic grazing after the first application of treatments. However, these effects were not evident after a second application of the treatments and there were no significant effects of treatment on population densities at the completion of the 4-year experiment. Although not requisite, sporadic dry-season grazing and burning of these areas would appear to be compatible with the survival of Trioncinia. This project highlights the value of stock routes for rare plant conservation. JF - Austral Ecology AU - Fensham, R J AU - Fairfax, R J AU - Holman, JE AD - Queensland Herbarium, Environmental Protection Agency, Mount Coot-tha Road, Toowong, Queensland 4066, Australia, rod.fensham@env.qld.gov.au Y1 - 2002/06// PY - 2002 DA - Jun 2002 SP - 284 EP - 290 PB - Blackwell Science Ltd VL - 27 IS - 3 SN - 1442-9985, 1442-9985 KW - Ecology Abstracts KW - D 04640:Other angiosperms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18409830?accountid=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=Austral+Ecology&rft.atitle=Response+of+a+rare+herb+%28Trioncinia+retroflexa+%29+from+semi-arid+tropical+grassland+to+occasional+fire+and+grazing&rft.au=Fensham%2C+R+J%3BFairfax%2C+R+J%3BHolman%2C+JE&rft.aulast=Fensham&rft.aufirst=R&rft.date=2002-06-01&rft.volume=27&rft.issue=3&rft.spage=284&rft.isbn=&rft.btitle=&rft.title=Austral+Ecology&rft.issn=14429985&rft_id=info:doi/10.1046%2Fj.1442-9993.2002.01180.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1046/j.1442-9993.2002.01180.x ER - TY - JOUR T1 - Landscape and Watershed Processes: Landscape Metrics and Estuarine Sediment Contamination in the Mid-Atlantic and Southern New England Regions AN - 16151973; 5411167 AB - In a previously published study, quantitative relationships were developed between landscape metrics and sediment contamination for 25 small estuarine systems within Chesapeake Bay. These analyses have been extended to include 75 small estuarine systems across the mid-Atlantic and southern New England regions of the USA. Because of the different characteristics and dynamics of the estuaries across these regions, adjustment for differing hydrology, sediment characteristics, and sediment origins were included in the analysis. Multiple linear regression with stepwise selection was used to develop statistical models for sediment metals, organics, and total polycyclic aromatic hydrocarbons (PAHs). The landscape metrics important for explaining the variation in sediment metals levels (R super(2) = 0.72) were the percent area of nonforested wetlands (negative contribution), percent area of urban land, and point source effluent volume and metals input (positive contributions). The metrics important for sediment organics levels (R super(2) = 0.5) and total PAHs (R super(2) = 0.46) were percent area of urban land (positive contribution) and percent area of nonforested wetlands (negative contribution). These models included silt-clay content (metals) or total organic C (organics, total PAHs) of sediments and grouping by estuarine hydrology, suggesting the importance of sediment characteristics and hydrology in mitigating the influence of the landscape metrics on sediment contamination levels. The overall results from this study are indicative of how statistical models can be developed relating landscape metrics to estuarine sediment contamination for distributions of land cover and point source discharges. JF - Journal of Environmental Quality AU - Paul, J F AU - Comeleo, R L AU - Copeland, J AD - USEPA, 27 Tarzwell Drive, Narragansett, RI 02882, USA, paul.john@epa.gov Y1 - 2002/06// PY - 2002 DA - Jun 2002 SP - 836 EP - 845 VL - 31 IS - 3 SN - 0047-2425, 0047-2425 KW - Polycyclic aromatic hydrocarbons KW - USA, New England KW - USA, mid-Atlantic KW - landscape KW - landscape metrics KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Land Use KW - Regression Analysis KW - Urbanization KW - Water Pollution Sources KW - Pollution dispersion KW - Statistical analysis KW - Forests KW - Freshwater KW - ANW, USA, New England KW - Watersheds KW - Regression analysis KW - Sediment Contamination KW - Aromatic hydrocarbons KW - Wetlands KW - Urban areas KW - Metals KW - Sediment pollution KW - Mathematical models KW - Hydrocarbons KW - Fate of Pollutants KW - USA, Chesapeake Bay KW - Estuaries KW - Brackish KW - Effluents KW - ANW, USA, Chesapeake Bay KW - Contaminated sediments KW - Land use KW - Statistical Models KW - Effluent KW - Organic Compounds KW - Hydrocarbon KW - Organic compounds KW - Pollution (Water) KW - Q5 08503:Characteristics, behavior and fate KW - SW 3020:Sources and fate of pollution KW - P 1000:MARINE POLLUTION KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16151973?accountid=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=Landscape+and+Watershed+Processes%3A+Landscape+Metrics+and+Estuarine+Sediment+Contamination+in+the+Mid-Atlantic+and+Southern+New+England+Regions&rft.au=Paul%2C+J+F%3BComeleo%2C+R+L%3BCopeland%2C+J&rft.aulast=Paul&rft.aufirst=J&rft.date=2002-06-01&rft.volume=31&rft.issue=3&rft.spage=836&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 - 2004-02-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Metals; Urbanization; Estuaries; Pollution dispersion; Statistical analysis; Forests; Watersheds; Land use; Regression analysis; Aromatic hydrocarbons; Wetlands; Organic compounds; Polycyclic aromatic hydrocarbons; Mathematical models; Urban areas; Effluent; Hydrocarbon; Contaminated sediments; Pollution (Water); Land Use; Regression Analysis; Hydrocarbons; Water Pollution Sources; Fate of Pollutants; Statistical Models; Sediment Contamination; Organic Compounds; Effluents; USA, Chesapeake Bay; ANW, USA, New England; ANW, USA, Chesapeake Bay; Freshwater; Brackish ER - TY - JOUR T1 - Guidelines and Resources for Conducting an Environmental Crime Investigation in the United States AN - 16150330; 5491139 AB - Common environmental crimes in the United States include the illegal disposal of hazardous waste, unpermitted discharges to sewer systems or surface water, discharge of oil by vessels to waters within United States jurisdiction, the misapplication of pesticides, the illegal importation of ozone-depleting substances, data falsification, and laboratory fraud. Federal, state, and sometimes local statutes and regulations are in place to protect the water, air, land, and human health. From a federal perspective, these include the Resource Conservation and Recovery Act (RCRA) for hazardous wastes, the Toxic Substances Control Act (TSCA) for toxic substances, the Clean Air Act (CAA), the Clean Water Act (CWA), the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) for abandoned waste sites, and the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) for pesticides. Each of these laws contains some standard methods for sampling and analyses to prove environmental crimes. The Code of Federal Regulations (CFR) contains the specific requirements of the laws. Within the United States Environmental Protection Agency (USEPA), the Criminal Investigation Division (CID) of the Office of Criminal Enforcement, Forensics and Training (OCEFT) has the responsibility to investigate criminal offenses. Criminal offenses are more serious in nature than civil violations in the United States. To successfully prosecute an environmental criminal case, the government has to prove, beyond a reasonable doubt, that a corporation or person knowingly violated an environmental statute containing criminal sanctions. The same environmental forensic techniques used to provide scientifically defensible data prevail in both civil and criminal cases; the only distinction between the two types of cases is legal. JF - Environmental Forensics AU - Suggs, JA AU - Beam, E W AU - Biggs, DE AU - Collins, W Jr AU - Dusenbury, M R AU - MacLeish, P P AU - Nottingham, KE AU - Smith, D J AD - US Environmental Protection Agency, National Enforcement Investigations Center, Denver Federal Center, Building 53, P.O. Box 25227, Denver, CO 80225-0227, USA, suggs.jennifer@epa.gov Y1 - 2002/06// PY - 2002 DA - Jun 2002 SP - 91 EP - 113 VL - 3 IS - 2 SN - 1527-5922, 1527-5922 KW - forensics KW - Pollution Abstracts KW - Federal regulations KW - Legal aspects KW - Pollution violations KW - environmental law KW - Legislation KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16150330?accountid=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+Forensics&rft.atitle=Guidelines+and+Resources+for+Conducting+an+Environmental+Crime+Investigation+in+the+United+States&rft.au=Suggs%2C+JA%3BBeam%2C+E+W%3BBiggs%2C+DE%3BCollins%2C+W+Jr%3BDusenbury%2C+M+R%3BMacLeish%2C+P+P%3BNottingham%2C+KE%3BSmith%2C+D+J&rft.aulast=Suggs&rft.aufirst=JA&rft.date=2002-06-01&rft.volume=3&rft.issue=2&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=Environmental+Forensics&rft.issn=15275922&rft_id=info:doi/10.1006%2Fenfo.2002.0084 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-12-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Federal regulations; Legal aspects; Pollution violations; environmental law; Legislation DO - http://dx.doi.org/10.1006/enfo.2002.0084 ER - TY - JOUR T1 - Lack of antiandrogenic effects in adult male rats following acute exposure to 2,2-bis(4-chlorophenyl)-1,1-dichloroethylene (p,p'-DDE) AN - 18432786; 5417411 AB - Although the insecticide dichlorodiphenyltrichloroethane (DDT) was banned in the US in 1972, DDT and its major metabolite 2,2-bis(4-chlorophenyl)-1,1-dichloroethylene (DDE) are still persistent in the environment. DDE at high doses is antiandrogenic in fetal and adult rats and, therefore, is of concern in humans exposed environmentally. The objective of this work was to determine the dose-response relationship between DDE and its antiandrogenic effect in adult, male rats and to quantitate the concentration of DDE in tissues following oral exposures. Adult, male, Long-Evans rats (11-13 weeks) were castrated, implanted with testosterone capsules, and dosed by oral gavage with 0, 5, 12.5, 25, 50, or 100 mg DDE per kg body weight (BW) per day in corn oil for 4 days. On day 5 the rats were euthanized and liver, adrenals, ventral prostate, and seminal vesicles were weighed as a measure of response to DDE exposure. Blood, adrenals, brain, fat, kidney, lung, liver, muscle, ventral prostate, seminal vesicles, and skin were analyzed for DDE concentrations. Testosterone and dihydrotestosterone were measured in serum. There was a decrease in prostate weight that was not dose dependent; only the prostate weights in rats treated with 12.5 mg DDE per kg BW per day were reduced significantly compared to controls. The liver displayed a dose-dependent increase in weight that was significantly greater than control at DDE doses of 25, 50, and 100 mg/kg BW per day. Blood concentrations of DDE ranged from 0.32 to 11.3 ppm, while tissue concentrations ranged from 0.72 to 2620 ppm with the highest concentration in fat. Although DDE concentrations in the androgen-responsive tissues were higher than concentrations previously shown in vitro to inhibit androgen-receptor transcriptional activity, these concentrations did not appear to be antiandrogenic in vivo. The doses administered to the rats in this study are at least 10 super(5)-fold greater than the daily, average of human dietary intake of DDE. JF - Toxicology AU - Leavens, T L AU - Sparrow, B R AU - Devito, MJ AD - Curriculum in Toxicology, University of North Carolina, Chapel Hill, NC, USA, leavens.teresa@epa.gov Y1 - 2002/05/24/ PY - 2002 DA - 2002 May 24 SP - 69 EP - 78 VL - 174 IS - 2 SN - 0300-483X, 0300-483X KW - adults KW - endocrine disruptors KW - males KW - rats KW - Toxicology Abstracts KW - X 24131:Acute exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18432786?accountid=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=Lack+of+antiandrogenic+effects+in+adult+male+rats+following+acute+exposure+to+2%2C2-bis%284-chlorophenyl%29-1%2C1-dichloroethylene+%28p%2Cp%27-DDE%29&rft.au=Leavens%2C+T+L%3BSparrow%2C+B+R%3BDevito%2C+MJ&rft.aulast=Leavens&rft.aufirst=T&rft.date=2002-05-24&rft.volume=174&rft.issue=2&rft.spage=69&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 ER - TY - JOUR T1 - Quantitative evaluation of bromodichloromethane metabolism by recombinant rat and human cytochrome P450s. AN - 71842712; 12076521 AB - We report quantitative estimates of the parameters for metabolism of bromodichloromethane (BDCM) by recombinant preparations of hepatic cytochrome P450s (CYPs) from rat and human. Earlier work identified CYP2E1, CYP2B1/2 and CYP1A2 as activating enzymes necessary for hepatotoxicity in rat. In order to extend an existing PBPK model for rat to include a capability for extrapolation to humans, it is necessary to evaluate quantitatively the principal metabolic pathways in both species. We have conducted in vitro experiments using recombinant preparations of the three rat CYP isoenzymes mentioned above and for CYP2C11 and CYP3A1 as well. Similar experiments have been performed with human recombinant isoenzymes for CYP2E1, CYP1A2, CYP2A6, CYP2B6, CYP2D6 and CYP3A4. Results indicate that the principal metabolizing enzymes in rat are those identified previously, CYP2E1, CYP2B1/2 and CYP1A2. CYP3A1 may also have some activity. In human, CYP2E1, CYP1A2 and CYP3A4 show substantial activity, and CYP2A6 also measurably metabolizes BDCM. In both species, CYP2E1 is the low K(m) isoenzyme, with K(m) approximately 27-fold lower than those for the isoenzymes with the next lowest K(m). In addition, the metabolic parameters, K(m) and k(cat), for rat and human CYP2E1 were nearly identical. The metabolic parameters for CYP1A2, the only other isoenzyme active in both species, were not similar across species. In addition, calculations based on the kinetic constants obtained are compared to results from two in vivo experiments to show that the in vitro kinetic data is relevant to in vivo exposures. We conclude that although several CYPs metabolize BDCM, at low concentration/exposure, BDCM metabolism is dominated by CYP2E1 in both rat and human, but that other isoenzymes can be important at higher concentrations. We further conclude that the kinetic data are consistent with existing in vivo results. JF - Chemico-biological interactions AU - Allis, John W AU - Zhao, Guangyu AD - National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA. jwallis@telocity.com Y1 - 2002/05/20/ PY - 2002 DA - 2002 May 20 SP - 137 EP - 153 VL - 140 IS - 2 SN - 0009-2797, 0009-2797 KW - Carcinogens KW - 0 KW - Isoenzymes KW - Recombinant Proteins KW - Trihalomethanes KW - bromodichloromethane KW - 7LN464CH2O KW - Cytochrome P-450 Enzyme System KW - 9035-51-2 KW - Cytochrome P-450 CYP2E1 KW - EC 1.14.13.- KW - Aryl Hydrocarbon Hydroxylases KW - EC 1.14.14.1 KW - Cyp3a1 protein, rat KW - Cytochrome P-450 CYP1A2 KW - Cytochrome P-450 CYP2B1 KW - Cytochrome P-450 CYP3A KW - Index Medicus KW - Rats KW - Animals KW - Recombinant Proteins -- metabolism KW - Kinetics KW - Humans KW - Carcinogens -- pharmacokinetics KW - Cytochrome P-450 CYP2B1 -- metabolism KW - Cytochrome P-450 CYP1A2 -- metabolism KW - Cytochrome P-450 CYP2E1 -- metabolism KW - Isoenzymes -- metabolism KW - Trihalomethanes -- pharmacokinetics KW - Cytochrome P-450 Enzyme System -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71842712?accountid=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=Chemico-biological+interactions&rft.atitle=Quantitative+evaluation+of+bromodichloromethane+metabolism+by+recombinant+rat+and+human+cytochrome+P450s.&rft.au=Allis%2C+John+W%3BZhao%2C+Guangyu&rft.aulast=Allis&rft.aufirst=John&rft.date=2002-05-20&rft.volume=140&rft.issue=2&rft.spage=137&rft.isbn=&rft.btitle=&rft.title=Chemico-biological+interactions&rft.issn=00092797&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-08-21 N1 - Date created - 2002-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Investigation into the rejuvenation of spent electroless nickel baths by electrodialysis. AN - 71746264; 12038841 AB - Electroless nickel plating generates substantially more waste than other metal-finishing processes due to the inherent limited bath life and the need for regular bath disposal. Electrodialysis can be used to regenerate electroless nickel baths, but poor membrane permselectivity, leading to high losses of valuable bath components, continues to be a weakness of the technology. This research has investigated improving electrodialysis permselectivity for removing contaminants (sodium, orthophosphite, and sulfate) in a spent electroless nickel bath while minimizing the losses of valuable bath ions (nickel, hypophosphite, and organic acids). Ion permselectivity was explored with respect to electrodialysis operating conditions, membrane type, and cell configuration. Excellent permselectivity for sodium over nickel was attained irrespective of operating condition, membrane, or cell configuration. Studies on the effects of four different operating conditions (current density, pH, flow rate, and temperature) on anion permselectivity revealed bath pH and current density to be critical operating parameters. The type of anion exchange membrane used had a crucial effect on selectivity; one membrane (Ionac MA-3475) was identified as having superior selectivity for bath contaminants particularly for sulfate. The improvements in electrodialysis permselectivity established by this research will decrease waste generation within the electroless nickel process and increase resource productivity by minimizing the loss of valuable plating chemicals. JF - Environmental science & technology AU - Bolger, Paul T AU - Szlag, David C AD - Clean Processes Branch, National Risk Management Research Laboratory, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268, USA. paul.bolger@bnm.ie Y1 - 2002/05/15/ PY - 2002 DA - 2002 May 15 SP - 2273 EP - 2278 VL - 36 IS - 10 SN - 0013-936X, 0013-936X KW - Industrial Waste KW - 0 KW - Nickel KW - 7OV03QG267 KW - Index Medicus KW - Environmental Pollution -- prevention & control KW - Hydrogen-Ion Concentration KW - Ion Exchange KW - Electroplating -- methods KW - Nickel -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71746264?accountid=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+science+%26+technology&rft.atitle=Investigation+into+the+rejuvenation+of+spent+electroless+nickel+baths+by+electrodialysis.&rft.au=Bolger%2C+Paul+T%3BSzlag%2C+David+C&rft.aulast=Bolger&rft.aufirst=Paul&rft.date=2002-05-15&rft.volume=36&rft.issue=10&rft.spage=2273&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 completed - 2002-12-30 N1 - Date created - 2002-05-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effects of aging and pH on dissolution kinetics and stability of chloropyromorphite. AN - 71726627; 12038830 AB - The objectives of this research were to understand the effect of aging time on chloropyromorphite stability by dissolution, to examine physical and chemical alterations of the pyromorphite samples, and to model the kinetic data collected from the dissolution experiments. The results of this investigation indicate that chloropyromorphite formation is kinetically rapid and that its dissolution in acid is thermodynamically stable, ideal conditions for Pb immobilization that has emerged as a potential remediation strategy. In terms of aging prior to dissolution, X-ray absorption fine structure (XAFS) and X-ray diffraction (XRD) spectroscopies were unable to distinguish fundamental differences in progressively aged samples; however, high-resolution thermogravimetric analysis (HRTGA) did demonstrate thatthe thermostability of the chloropyromorphite material increased with increasing residence time. The stirred-flow and batch dissolution studies suggest that the aging process ceased within 24 h and that the dissolution rate of the 1-day aged sample was not significantly different than the 1-year aged specimen. The amount of Pb released peaked at 21% (1-h sample, stirred-flow, pH 2.0) and was as low as 0.17% (1-year sample, batch method, pH 6.0). Postdissolution analyses of chloropyromorphite with XAFS, XRD, and HRTGA revealed no detectable chemical alterations of the pyromorphite samples signifying only release of dissolved Pb to solution and no formation of secondary products during dissolution. JF - Environmental science & technology AU - Scheckel, Kirk G AU - Ryan, James A AD - US EPA, ORD, NRMRL, LRPCD, RCB, Cincinnati, Ohio 45224, USA. Scheckel.Kirk@epa.gov Y1 - 2002/05/15/ PY - 2002 DA - 2002 May 15 SP - 2198 EP - 2204 VL - 36 IS - 10 SN - 0013-936X, 0013-936X KW - Minerals KW - 0 KW - Phosphates KW - Soil Pollutants KW - chloropyromorphite KW - Lead KW - 2P299V784P KW - Index Medicus KW - Solubility KW - Kinetics KW - Hydrogen-Ion Concentration KW - Temperature KW - Time Factors KW - Biological Availability KW - Minerals -- chemistry KW - Phosphates -- chemistry KW - Lead -- chemistry KW - Soil Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71726627?accountid=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+science+%26+technology&rft.atitle=Effects+of+aging+and+pH+on+dissolution+kinetics+and+stability+of+chloropyromorphite.&rft.au=Scheckel%2C+Kirk+G%3BRyan%2C+James+A&rft.aulast=Scheckel&rft.aufirst=Kirk&rft.date=2002-05-15&rft.volume=36&rft.issue=10&rft.spage=2198&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 completed - 2002-12-30 N1 - Date created - 2002-05-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Investigation of the potential release of polychlorinated dioxins and furans from PCP-treated utility poles AN - 16137001; 5419103 AB - The United States (US) Environmental Protection Agency (EPA) estimated that the use of technical grade pentachlorophenol (PCP) between 1970 and 1995 to treat wood was approximately 400 000 metric tons in the US, and that between 4800 and 36 000 g of 2,3,7,8-tetrachlorodibenzo-p-dioxin toxic equivalents (TEQs) were incorporated annually in treated wood. The EPA has been unable, however, to estimate the rate of release of polychlorinated dibenzo-p-dioxins and dibenzofurans (CDD/Fs) from treated utility poles into the environment. There is some evidence that CDD/Fs leach from treated poles into the surrounding soils, but these studies do not allow for the calculation of a rate of release from this mechanism. Another possible release mechanism is the volatilization of dioxins into the atmosphere, but there are no data to demonstrate, much less quantify, this release. While not directly measuring the release of dioxins from treated utility poles into the environment, this study was designed to examine the potential for such release. The general approach taken was to collect PCP-treated poles of varying ages, to remove and analyze multiple samples from each pole cross-section, and to compare the spatial distribution of CDD/F congeners among poles of different ages. Evidence of concentration-depth profile changes over time may provide insight into the potential for dioxins to migrate through and then out of PCP-treated utility poles. It was found that the CDD/F concentrations were consistently higher in the outer portions of the poles than the center. This trend tends to be most marked in older poles and for the lower chlorinated congeners. The trend for dioxins to concentrate in the outer portions of the pole over time suggest migration within the poles, and this migration may result in some environmental release. Other possible explanations were also offered. JF - Science of the Total Environment AU - Lorber, M N AU - Barton, R G AU - Winters, D L AU - Bauer, K M AU - Davis, M AU - Palausky, J AD - US Environmental Protection Agency, 1200 Pennsylvania Ave., Washington DC 20460, USA, lorber.matthew@epa.gov Y1 - 2002/05/06/ PY - 2002 DA - 2002 May 06 SP - 15 EP - 39 VL - 290 IS - 1-3 SN - 0048-9697, 0048-9697 KW - pentachlorophenol KW - release KW - Toxicology Abstracts; Pollution Abstracts KW - Polychlorinated dibenzo(p)dioxins KW - Environmental impact KW - Polychlorinated dibenzofurans KW - Wood KW - Soil contamination KW - Furans KW - Dioxins KW - Utilities KW - Air pollution KW - EPA KW - PCDF KW - Pentachlorophenol KW - PCDD KW - P 9000:ENVIRONMENTAL ACTION KW - P 0000:AIR POLLUTION KW - X 24156:Environmental impact UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16137001?accountid=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=Science+of+the+Total+Environment&rft.atitle=Investigation+of+the+potential+release+of+polychlorinated+dioxins+and+furans+from+PCP-treated+utility+poles&rft.au=Lorber%2C+M+N%3BBarton%2C+R+G%3BWinters%2C+D+L%3BBauer%2C+K+M%3BDavis%2C+M%3BPalausky%2C+J&rft.aulast=Lorber&rft.aufirst=M&rft.date=2002-05-06&rft.volume=290&rft.issue=1-3&rft.spage=15&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 - Date revised - 2002-10-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Air pollution; Polychlorinated dibenzo(p)dioxins; Environmental impact; Wood; Polychlorinated dibenzofurans; Furans; Pentachlorophenol; EPA; PCDF; Soil contamination; Utilities; Dioxins; PCDD ER - TY - JOUR T1 - A review of the USEPA's single breath canister (SBC) method for exhaled volatile organic biomarkers. AN - 71946139; 12141064 AB - Exhaled alveolar breath can provide a great deal of information about an individual's health and previous exposure to potentially harmful xenobiotic materials. Because breath can be obtained non-invasively and its constituents directly reflect concentrations in the blood, its use has many potential applications in the field of biomarker research. This paper reviews the utility and application of the single breath canister (SBC) method of alveolar breath collection and analysis first developed by the US Environmental Protection Agency (USEPA) in the 1990s. This review covers the development of the SBC technique in the laboratory and its application in a range of field studies. Together these studies specifically show how the SBC method (and exhaled breath analysis in general) can be used to clearly demonstrate recent exposure to volatile organic compounds, to link particular activities to specific exposures, to determine compound-specific uptake and elimination kinetics, and to assess the relative importance of various routes of exposure (i.e. dermal, ingestion, inhalation) in multi-pathway scenarios. Specific investigations covered in this overview include an assessment of exposures related to the residential use of contaminated groundwater, exposures to gasoline and fuel additives at self-service gas stations, swimmers' exposures to trihalomethanes, and occupational exposures to jet fuel. JF - Biomarkers : biochemical indicators of exposure, response, and susceptibility to chemicals AU - Lindstrom, Andrew B AU - Pleil, Joachim D AD - National Exposure Research Laboratory, US Environmental Protection Agency, MD-44, Research Triangle Park, NC 27711, USA. lindstrom.andrew@epa.gov PY - 2002 SP - 189 EP - 208 VL - 7 IS - 3 SN - 1354-750X, 1354-750X KW - Biomarkers KW - 0 KW - Hydrocarbons KW - Water Pollutants, Chemical KW - Index Medicus KW - United States KW - United States Environmental Protection Agency KW - Water Pollutants, Chemical -- analysis KW - Humans KW - Biomarkers -- analysis KW - Gas Chromatography-Mass Spectrometry KW - Environmental Exposure KW - Volatilization KW - Occupational Exposure -- analysis KW - Male KW - Female KW - Environmental Monitoring -- methods KW - Hydrocarbons -- analysis KW - Breath Tests -- methods KW - Breath Tests -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71946139?accountid=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=Biomarkers+%3A+biochemical+indicators+of+exposure%2C+response%2C+and+susceptibility+to+chemicals&rft.atitle=A+review+of+the+USEPA%27s+single+breath+canister+%28SBC%29+method+for+exhaled+volatile+organic+biomarkers.&rft.au=Lindstrom%2C+Andrew+B%3BPleil%2C+Joachim+D&rft.aulast=Lindstrom&rft.aufirst=Andrew&rft.date=2002-05-01&rft.volume=7&rft.issue=3&rft.spage=189&rft.isbn=&rft.btitle=&rft.title=Biomarkers+%3A+biochemical+indicators+of+exposure%2C+response%2C+and+susceptibility+to+chemicals&rft.issn=1354750X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-01-08 N1 - Date created - 2002-07-26 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Three methods for calculation of the hyper-Wiener index of molecular graphs. AN - 71857098; 12086516 AB - The hyper-Wiener index WW of a graph G is defined as WW(G) = (summation operator d (u, v)(2) + summation operator d (u, v))/2, where d (u, v) denotes the distance between the vertices u and v in the graph G and the summations run over all (unordered) pairs of vertices of G. We consider three different methods for calculating the hyper-Wiener index of molecular graphs: the cut method, the method of Hosoya polynomials, and the interpolation method. Along the way we obtain new closed-form expressions for the WW of linear phenylenes, cyclic phenylenes, poly(azulenes), and several families of periodic hexagonal chains. We also verify some previously known (but not mathematically proved) formulas. JF - Journal of chemical information and computer sciences AU - Cash, Gordon AU - Klavzar, Sandi AU - Petkovsek, Marko AD - Risk Assessment Division (7403), Office of Pollution Prevention and Toxics, US Environmental Protection Agency, Washington, DC 20460, USA. PY - 2002 SP - 571 EP - 576 VL - 42 IS - 3 SN - 0095-2338, 0095-2338 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71857098?accountid=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=Three+methods+for+calculation+of+the+hyper-Wiener+index+of+molecular+graphs.&rft.au=Cash%2C+Gordon%3BKlavzar%2C+Sandi%3BPetkovsek%2C+Marko&rft.aulast=Cash&rft.aufirst=Gordon&rft.date=2002-05-01&rft.volume=42&rft.issue=3&rft.spage=571&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 - 2002-07-18 N1 - Date created - 2002-06-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Toxicity of selenomethionine- and seleno-contaminated sediment to the amphipod Corophium sp. AN - 71792078; 12051805 AB - The acute toxicity of four chemical species of selenium to juvenile amphipods (Corophium sp.) was assessed in water-only tests. The seleno-amino acid compounds seleno-L-methionine and seleno-DL-cystine were found to be more toxic (96-h LC(50) values of 1.5 and 12.7 microg Se/L) than the inorganic selenite and selenate (96-h NOEC values of 58 and 116 microg Se/L). New marine sediment testing procedures were developed using juvenile and adult Corophium sp. Both life stages were highly sensitive to seleno-L-methionine-spiked sediment. The juveniles were approximately five times more sensitive, with a 10-day LC(50) of 1.6 microg Se/g (dry weight) compared to 7.6 microg Se/g (dry weight) for the adults. Sediment collected from three sites in Lake Macquarie, a marine barrier lagoon with elevated concentrations of total selenium, had no effect on the survival of adult Corophium over 10 days. The toxicity of seleno-L-methionine to other amphipod species occurring in Lake Macquarie was assessed in water-only tests, with Paracalliope australis being highly sensitive (96-h LC(50) 2.58 microg Se/L). JF - Ecotoxicology and environmental safety AU - Hyne, Ross V AU - Hogan, Alicia C AU - Pablo, Fleur AU - Roach, Anthony C AD - Ecotoxicology Section, Environment Protection Authority, New South Wales, Centre for Ecotoxicology, University of Technology-Sydney, Westbourne Street, Gore Hill, New South Wales 2065, Australia. hyner@epa.nsw.goc.au Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 30 EP - 37 VL - 52 IS - 1 SN - 0147-6513, 0147-6513 KW - Water Pollutants KW - 0 KW - Selenomethionine KW - 964MRK2PEL KW - Selenium KW - H6241UJ22B KW - Index Medicus KW - Geologic Sediments -- chemistry KW - Animals KW - Lethal Dose 50 KW - Water Pollutants -- toxicity KW - Selenium -- chemistry KW - Selenomethionine -- toxicity KW - Selenium -- toxicity KW - Crustacea KW - Environmental Exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71792078?accountid=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=Toxicity+of+selenomethionine-+and+seleno-contaminated+sediment+to+the+amphipod+Corophium+sp.&rft.au=Hyne%2C+Ross+V%3BHogan%2C+Alicia+C%3BPablo%2C+Fleur%3BRoach%2C+Anthony+C&rft.aulast=Vesper&rft.aufirst=Stephen&rft.date=2002-04-01&rft.volume=70&rft.issue=4&rft.spage=2065&rft.isbn=&rft.btitle=&rft.title=Infection+and+immunity&rft.issn=00199567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-10-08 N1 - Date created - 2002-06-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Analyzing drinking water for disinfection byproducts. AN - 71723835; 12033338 JF - Analytical chemistry AU - Urbansky, Edward T AU - Magnuson, Matthew L AD - U.S. 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 - 2002/05/01/ PY - 2002 DA - 2002 May 01 SP - 260A EP - 267A VL - 74 IS - 9 SN - 0003-2700, 0003-2700 KW - Disinfectants KW - 0 KW - Pesticide Residues KW - Index Medicus KW - Water Pollution -- analysis KW - Environmental Monitoring KW - Disinfection KW - Pesticide Residues -- analysis KW - Fresh Water -- analysis KW - Disinfectants -- metabolism KW - Disinfectants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71723835?accountid=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+American+Water+Resources+Association&rft.atitle=An+interdisciplinary+approach+to+valuing+water+from+brush+control&rft.au=Lemberg%2C+B%3BMjelde%2C+J+W%3BConner%2C+J+R%3BGriffin%2C+R+C%3BRosenthal%2C+W+D%3BStuth%2C+J+W&rft.aulast=Lemberg&rft.aufirst=B&rft.date=2002-04-01&rft.volume=38&rft.issue=2&rft.spage=409&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 completed - 2003-04-04 N1 - Date created - 2002-05-29 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Disinfection byproducts: the next generation. AN - 71715424; 12026983 JF - Environmental science & technology AU - Richardson, Susan D AU - Simmons, Jane Ellen AU - Rice, Glenn AD - U.S. EPA, National Exposure Research Laboratory, Athens, GA, USA. Y1 - 2002/05/01/ PY - 2002 DA - 2002 May 01 SP - 198A EP - 205A VL - 36 IS - 9 SN - 0013-936X, 0013-936X KW - Chlorine Compounds KW - 0 KW - Disinfectants KW - Index Medicus KW - Environmental Monitoring KW - Animals KW - Epidemiologic Studies KW - Humans KW - Toxicity Tests KW - Disinfectants -- adverse effects KW - Water Supply KW - Environmental Exposure KW - Water Purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71715424?accountid=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+science+%26+technology&rft.atitle=Disinfection+byproducts%3A+the+next+generation.&rft.au=Richardson%2C+Susan+D%3BSimmons%2C+Jane+Ellen%3BRice%2C+Glenn&rft.aulast=Richardson&rft.aufirst=Susan&rft.date=2002-05-01&rft.volume=36&rft.issue=9&rft.spage=198A&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 completed - 2002-11-19 N1 - Date created - 2002-05-24 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Landscape metrics and estuarine sediment contamination in the mid-Atlantic and southern New England regions. AN - 71706710; 12026087 AB - In a previously published study, quantitative relationships were developed between landscape metrics and sediment contamination for 25 small estuarine systems within Chesapeake Bay. These analyses have been extended to include 75 small estuarine systems across the mid-Atlantic and southern New England regions of the USA. Because of the different characteristics and dynamics of the estuaries across these regions, adjustment for differing hydrology, sediment characteristics, and sediment origins were included in the analysis. Multiple linear regression with stepwise selection was used to develop statistical models for sediment metals, organics, and total polycyclic aromatic hydrocarbons (PAHs). The landscape metrics important for explaining the variation in sediment metals levels (R2 = 0.72) were the percent area of nonforested wetlands (negative contribution), percent area of urban land, and point source effluent volume and metals input (positive contributions). The metrics important for sediment organics levels (R2 = 0.5) and total PAHs (R2 = 0.46) were percent area of urban land (positive contribution) and percent area of nonforested wetlands (negative contribution). These models included silt-clay content (metals) or total organic C (organics, total PAHs) of sediments and grouping by estuarine hydrology, suggesting the importance of sediment characteristics and hydrology in mitigating the influence of the landscape metrics on sediment contamination levels. The overall results from this study are indicative of how statistical models can be developed relating landscape metrics to estuarine sediment contamination for distributions of land cover and point source discharges. JF - Journal of environmental quality AU - Paul, John F AU - Comeleo, Randy L AU - Copeland, Jane AD - USEPA, Narragansett, RI 02882, USA. paul.john@epa.gov PY - 2002 SP - 836 EP - 845 VL - 31 IS - 3 SN - 0047-2425, 0047-2425 KW - Metals, Heavy KW - 0 KW - Organic Chemicals KW - Polycyclic Aromatic Hydrocarbons KW - Soil Pollutants KW - Index Medicus KW - Organic Chemicals -- chemistry KW - Fresh Water KW - Seawater KW - Humans KW - New England KW - Mid-Atlantic Region KW - Geography KW - Models, Theoretical KW - Geologic Sediments -- chemistry KW - Metals, Heavy -- chemistry KW - Polycyclic Aromatic Hydrocarbons -- chemistry KW - Soil Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71706710?accountid=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+quality&rft.atitle=Landscape+metrics+and+estuarine+sediment+contamination+in+the+mid-Atlantic+and+southern+New+England+regions.&rft.au=Paul%2C+John+F%3BComeleo%2C+Randy+L%3BCopeland%2C+Jane&rft.aulast=Paul&rft.aufirst=John&rft.date=2002-05-01&rft.volume=31&rft.issue=3&rft.spage=836&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 completed - 2002-11-07 N1 - Date created - 2002-05-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Design of a cost-effective weighing facility for PM2.5 quality assurance. AN - 71702945; 12022690 AB - The U.S. Environmental Protection Agency (EPA) Quality Assurance (QA) Guidance Document 2.12: Monitoring PM2.5 in Ambient Air Using Designated Reference or Class I Equivalent Methods (Document 2.12) requires conditioning of PM2.5 filters at 20-23 degrees C and 30-40% relative humidity (RH) for 24 hr prior to gravimetric analysis. Variability of temperature and humidity may not exceed +/-2 degrees C and +/-5% RH during the conditioning period. The quality assurance team at EPA Region 2's regional laboratory designed a PM2.5 weighing facility that operates well within these strict performance requirements. The traditional approach to meeting the performance requirements of Document 2.12 for PM2.5 filter analysis is to build a walk-in room, with costs typically exceeding $100,000. The initial one-time capital cost for the laboratory at EPA's Edison, NJ, facility was approximately $24,000. Annual costs [e.g., National Institute of Standards and Technology (NIST) recertifications and nitrogen replacement cylinders used for humidity control] are approximately $500. The average 24-hr variabilities in temperature and RH in the Region 2 weighing chamber are small, +/-0.2 degrees C and +/-0.8% RH, respectively. The mass detection limit for the PM2.5 weighing system of 47-mm stretched Teflon (lab blank) filters is 6.3 microg. This facility demonstrates an effective and economical example for states and other organizations planning PM2.5 weighing facilities. JF - Journal of the Air & Waste Management Association (1995) AU - Carlton, Annmarie G AU - Teitz, Avraham AD - Division of Environmental Science and Assessment, Monitoring and Assessment Branch, US Environmental Protection Agency, Edison, New Jersey, USA. carlton.annmarie@epa.gov Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 506 EP - 510 VL - 52 IS - 5 SN - 1096-2247, 1096-2247 KW - Air Pollutants KW - 0 KW - Index Medicus KW - Equipment Design KW - Particle Size KW - Cost-Benefit Analysis KW - Quality Control KW - Environmental Monitoring -- standards KW - Air Pollutants -- analysis KW - Environmental Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71702945?accountid=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=Design+of+a+cost-effective+weighing+facility+for+PM2.5+quality+assurance.&rft.au=Carlton%2C+Annmarie+G%3BTeitz%2C+Avraham&rft.aulast=Carlton&rft.aufirst=Annmarie&rft.date=2002-05-01&rft.volume=52&rft.issue=5&rft.spage=506&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 - 2002-06-11 N1 - Date created - 2002-05-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The ecological condition of south Florida estuaries. AN - 71673457; 12004979 AB - An assessment of the ecological condition of south Florida estuaries based on regional probabilistic monitoring was conducted during the summer of 1995. Samples and data were collected on water and sediment quality, benthos, and fish tissue contaminants. Elevated concentrations of metals and pesticides were measured in both sediments and fish tissue with some exceedances of guidance values. Bottom dissolved oxygen levels over 23-37% of the area were below state criteria. Eighty-eight percent of surface waters had greater than 10% penetration of ambient light to a depth of 1.0 m. Nine percent of the area studied in South Florida exhibited degraded biology and impaired use based on a calculated index of ecological condition. Using the probability-based monitoring design, useful information of this type can be provided to resource managers regarding estuarine condition on a regional scale. JF - Environmental monitoring and assessment AU - Macauley, J M AU - Summers, J K AU - Engle, V D AU - Harwell, L C AD - US Environmental Protection Agency, Gulf Ecology Division, Gulf Breeze, Florida, USA. macauley.john@epa.gov Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 253 EP - 269 VL - 75 IS - 3 SN - 0167-6369, 0167-6369 KW - Water Pollutants KW - 0 KW - Oxygen KW - S88TT14065 KW - Index Medicus KW - Probability KW - Animals KW - Fishes KW - Oxygen -- analysis KW - Light KW - Invertebrates KW - Florida KW - Ecosystem KW - Geologic Sediments -- chemistry KW - Water Pollutants -- analysis KW - Environmental Monitoring -- statistics & numerical data UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71673457?accountid=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+monitoring+and+assessment&rft.atitle=The+ecological+condition+of+south+Florida+estuaries.&rft.au=Macauley%2C+J+M%3BSummers%2C+J+K%3BEngle%2C+V+D%3BHarwell%2C+L+C&rft.aulast=Macauley&rft.aufirst=J&rft.date=2002-05-01&rft.volume=75&rft.issue=3&rft.spage=253&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 completed - 2002-11-05 N1 - Date created - 2002-05-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Getting Out the Cut: Politics and National Forest Timber Harvests, 1960-1995 AN - 60631294; 200302654 AB - To what extent do national forest policy decisions reflect a balance between the interests of environmentalists & the timber industries? National forest policy making from 1960 through 1995 was analyzed using the advocacy coalition framework developed by Sabatier & Jenkins-Smith. The authors found that forest policy shifted in a more ecologically sensitive direction beginning in the late 1980s. Changes were largely attributable to the ability of the environmental coalition to manipulate new information to influence key decision makers within Congress & to take advantage of more favorable decisional venues to overcome structural biases built into existing forest policy-making arrangements. 2 Tables, 36 References. [Copyright 2002 Sage Publications, Inc.] JF - Administration & Society AU - Burnett, Miles AU - Davis, Charles AD - Dept Toxic Substances Control, California Environmental Protection Agency Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 202 EP - 228 VL - 34 IS - 2 SN - 0095-3997, 0095-3997 KW - Policy Making KW - Environmentalism KW - Environmental Policy KW - Forestry KW - article KW - 9261: public policy/administration; public policy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/60631294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awpsa&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Administration+%26+Society&rft.atitle=Getting+Out+the+Cut%3A+Politics+and+National+Forest+Timber+Harvests%2C+1960-1995&rft.au=Burnett%2C+Miles%3BDavis%2C+Charles&rft.aulast=Burnett&rft.aufirst=Miles&rft.date=2002-05-01&rft.volume=34&rft.issue=2&rft.spage=202&rft.isbn=&rft.btitle=&rft.title=Administration+%26+Society&rft.issn=00953997&rft_id=info:doi/ LA - English DB - Worldwide Political Science Abstracts N1 - Date revised - 2007-04-01 N1 - Last updated - 2016-09-28 N1 - CODEN - ADSODM N1 - SubjectsTermNotLitGenreText - Forestry; Environmentalism; Policy Making; Environmental Policy ER - TY - JOUR T1 - KARSTIC; a sensitivity method for carbonate aquifers in karst terrain AN - 52098013; 2002-047675 JF - Environmental Geology (Berlin) AU - Davis, A D AU - Long, A J AU - Wireman, M Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 65 EP - 72 PB - Springer International, Berlin VL - 42 IS - 1 SN - 0943-0105, 0943-0105 KW - United States KW - water quality KW - karst hydrology KW - Lawrence County South Dakota KW - Black Hills KW - ground water KW - sedimentary rocks KW - transport KW - Western U.S. KW - sensitivity analysis KW - Madison Aquifer KW - protection KW - bedrock KW - pollutants KW - underground streams KW - KARSTIC KW - pollution KW - water balance KW - Pennington County South Dakota KW - aquifers KW - case studies KW - recharge KW - Rapid City South Dakota KW - DRASTIC KW - carbonate rocks KW - water resources KW - South Dakota KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52098013?accountid=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+Geology+%28Berlin%29&rft.atitle=KARSTIC%3B+a+sensitivity+method+for+carbonate+aquifers+in+karst+terrain&rft.au=Davis%2C+A+D%3BLong%2C+A+J%3BWireman%2C+M&rft.aulast=Davis&rft.aufirst=A&rft.date=2002-05-01&rft.volume=42&rft.issue=1&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Environmental+Geology+%28Berlin%29&rft.issn=09430105&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1432-0495/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 18 N1 - Document feature - illus. incl. sect., geol. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; bedrock; Black Hills; carbonate rocks; case studies; DRASTIC; ground water; karst hydrology; KARSTIC; Lawrence County South Dakota; Madison Aquifer; Pennington County South Dakota; pollutants; pollution; protection; Rapid City South Dakota; recharge; sedimentary rocks; sensitivity analysis; South Dakota; transport; underground streams; United States; water balance; water quality; water resources; Western U.S. ER - TY - JOUR T1 - Elemental mercury in copper, silver and gold ores; an unexpected contribution to Lake Superior sediments with global implications AN - 52010775; 2003-022501 AB - Mercury and copper inventories are low in central Lake Superior and increase markedly towards the Keweenaw Peninsula. Total copper flux to Lake Superior sediments averages 5.0+ or -2.5 mu g cm (super -2) year (super -1) (mean + or -95% confidence limits), whereas mercury flux averages 7.5+ or -4.2 ng cm (super -2) year (super -1) . In the Keweenaw Peninsula region, copper, mercury and silver inventories are elevated and highly correlated. High copper, silver and mercury inventories can be traced back to shoreline stamp sand piles, the parent ores and to smelters. Mercury occurs in elemental form, probably as a natural amalgam, in native metal (copper, silver, gold) deposits and was liberated as volatile Hg (super 0) during on-site copper smelting. Stamp mills discharged at least 364 Mt of "stamp sand" tailings, whereas smelters refined 5 Mt of native copper, liberating together at least 42 t of mercury. The Keweenaw situation is not unique, as mineral-bound mercury is commonplace in US and Canadian Greenstone Belts and is of worldwide occurrence in massive base metal ores. JF - Geochemistry - Exploration, Environment, Analysis AU - Kerfoot, W Charles AU - Harting, S L AU - Rossmann, Ronald AU - Robbins, John A A2 - Allan, Rod J. A2 - Horowitz, Arthur J. A2 - Miller, Jerry R. Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 185 EP - 202 PB - Geological Society Publishing House, London VL - 2, Part 2 SN - 1467-7873, 1467-7873 KW - United States KW - water quality KW - North America KW - Keweenaw Peninsula KW - copper KW - pollutants KW - silver KW - Michigan Upper Peninsula KW - pollution KW - environmental effects KW - metals KW - sediments KW - metal ores KW - lacustrine environment KW - Great Lakes KW - Michigan KW - Lake Superior KW - mercury KW - lake sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52010775?accountid=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=Geochemistry+-+Exploration%2C+Environment%2C+Analysis&rft.atitle=Elemental+mercury+in+copper%2C+silver+and+gold+ores%3B+an+unexpected+contribution+to+Lake+Superior+sediments+with+global+implications&rft.au=Kerfoot%2C+W+Charles%3BHarting%2C+S+L%3BRossmann%2C+Ronald%3BRobbins%2C+John+A&rft.aulast=Kerfoot&rft.aufirst=W&rft.date=2002-05-01&rft.volume=2%2C+Part+2&rft.issue=&rft.spage=185&rft.isbn=&rft.btitle=&rft.title=Geochemistry+-+Exploration%2C+Environment%2C+Analysis&rft.issn=14677873&rft_id=info:doi/10.1144%2F1467-787302-022 L2 - http://geea.lyellcollection.org/ LA - English DB - GeoRef N1 - Conference title - International conference on Heavy metals in the environment N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from The Geological Society, London, London, United Kingdom N1 - Date revised - 2003-01-01 N1 - Number of references - 64 N1 - Document feature - illus. incl. 8 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - copper; environmental effects; Great Lakes; Keweenaw Peninsula; lacustrine environment; lake sediments; Lake Superior; mercury; metal ores; metals; Michigan; Michigan Upper Peninsula; North America; pollutants; pollution; sediments; silver; United States; water quality DO - http://dx.doi.org/10.1144/1467-787302-022 ER - TY - JOUR T1 - Defining the Photochemical Contribution to Particulate Matter in Urban Areas Using Time-Series Analysis AN - 20626412; 5388290 AB - The objective of this project is to demonstrate how the ambient air measurement record can be used to define the relationship between O sub(3) (as a surrogate for photochemistry) and secondary particulate matter (PM) in urban air. The approach used is to develop a time-series transfer-function model describing the daily PM sub(10) (PM with less than 10 mu m aerodynamic diameter) concentration as a function of lagged PM and current and lagged O sub(3), NO or NO sub(2), CO, and SO sub(2). Approximately 3 years of daily average PM sub(10), daily maximum 8-hr average O sub(3) and CO, daily 24-hr average SO sub(2) and NO sub(2), and daily 6:00 a.m.-9:00 a.m. average NO from the Aerometric Information Retrieval System (AIRS) air quality subsystem are used for this analysis. Urban areas modeled are Chicago, IL; Los Angeles, CA; Phoenix, AZ; Philadelphia, PA; Sacramento, CA; and Detroit, MI. Time-series analysis identified significant autocorrelation in the O sub(3), PM sub(10), NO, NO sub(2), CO, and SO sub(2) series. Cross correlations between PM sub(10) (dependent variable) and gaseous pollutants (independent variables) show that all of the gases are significantly correlated with PM sub(10) and that O sub(3) is also significantly correlated lagged up to two previous days. Once a transfer-function model of current PM sub(10) is defined for an urban location, the effect of an O sub(3)-control strategy on PM concentrations is estimated by calculating daily PM sub(10) concentrations with reduced O sub(3) concentrations. Forecasted summertime PM sub(10) reductions resulting from a 5 percent decrease in ambient O sub(3) range from 1.2 mu g/m super(3) (3.03%) in Chicago to 3.9 mu g/m super(3) (7.65%) in Phoenix. JF - Journal of the Air & Waste Management Association AU - Rizzo, M AU - Scheff, P AU - Ramakrishnan, V AD - Air Monitoring Section, Air and Radiation Division, U.S. Environmental Protection Agency, Region 5, Chicago, Illinois, USA Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 593 EP - 605 VL - 52 IS - 5 SN - 1096-2247, 1096-2247 KW - Pollution Abstracts KW - Carbon monoxide KW - Nitrogen dioxide KW - Photochemicals KW - Sulfur dioxide KW - Nitric oxide KW - Particulates KW - Urban areas KW - Ozone KW - Information systems KW - Air pollution measurements KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20626412?accountid=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=Defining+the+Photochemical+Contribution+to+Particulate+Matter+in+Urban+Areas+Using+Time-Series+Analysis&rft.au=Rizzo%2C+M%3BScheff%2C+P%3BRamakrishnan%2C+V&rft.aulast=Rizzo&rft.aufirst=M&rft.date=2002-05-01&rft.volume=52&rft.issue=5&rft.spage=593&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association&rft.issn=10962247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-07-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Nitrogen dioxide; Carbon monoxide; Sulfur dioxide; Photochemicals; Nitric oxide; Particulates; Air pollution measurements; Information systems; Ozone; Urban areas ER - TY - JOUR T1 - Preparing to Measure the Effects of the NO sub(x) SIP Call--Methods for Ambient Air Monitoring of NO, NO sub(2), NO sub(y), and Individual NO sub(z) Species AN - 20622921; 5388286 AB - The capping of stationary source emissions of NO sub(x) in 22 states and the District of Columbia is federally mandated by the NO sub(x) SIP Call legislation with the intended purpose of reducing downwind O sub(3) concentrations. Monitors for NO, NO sub(2), and the reactive oxides of nitrogen into which these two compounds are converted will record data to evaluate air quality model (AQM) predictions. Guidelines for testing these models indicate the need for semicontinuous measurements as close to real time as possible but no less frequently than once per hour. The measurement uncertainty required for AQM testing must be less than plus or minus 20% ( plus or minus 10% for NO sub(2)) at mixing ratios of 1 ppbv and higher for NO, individual NO sub(z) component compounds, and NO sub(y). This article is a review and discussion of different monitoring methods, some currently used in research and others used for routine monitoring. The performance of these methods is compared with the monitoring guidelines. Recommendations for advancing speciated and total NO sub(y) monitoring technology and a listing of demonstrated monitoring approaches are also presented. JF - Journal of the Air & Waste Management Association AU - McClenny, WA AU - Williams, E J AU - Cohen, R C AU - Stutz, J AD - National Exposure Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 542 EP - 562 VL - 52 IS - 5 SN - 1096-2247, 1096-2247 KW - Pollution Abstracts KW - Nitrogen dioxide KW - Air quality measurements KW - Monitoring methods KW - Nitric oxide KW - Nitrogen oxides KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20622921?accountid=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=Preparing+to+Measure+the+Effects+of+the+NO+sub%28x%29+SIP+Call--Methods+for+Ambient+Air+Monitoring+of+NO%2C+NO+sub%282%29%2C+NO+sub%28y%29%2C+and+Individual+NO+sub%28z%29+Species&rft.au=McClenny%2C+WA%3BWilliams%2C+E+J%3BCohen%2C+R+C%3BStutz%2C+J&rft.aulast=McClenny&rft.aufirst=WA&rft.date=2002-05-01&rft.volume=52&rft.issue=5&rft.spage=542&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association&rft.issn=10962247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-07-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Nitrogen dioxide; Monitoring methods; Air quality measurements; Nitric oxide; Nitrogen oxides ER - TY - JOUR T1 - How the assessment of relative efficiency has benefited the customers of water companies in England and Wales AN - 20597481; 8044311 AB - The England and Wales water and sewerage industry was privatised in 1989. Prior to privatisation there were ten public water authorities supplying water and sewerage services, and 29 statutory companies supplying water only. The companies ranged in size from 35 thousand connected properties to 3.3 million connected properties. Since privatisation, the number of regulated companies has decreased through mergers and acquisitions. There are now 22 separate companies. Companies operate under Licences granted by the Secretaries of State for the Environment, Transport and the Regions and for Wales to provide water and sewerage services in England and Wales. JF - Water Intelligence Online AU - Hann, M AU - Twelves, H AD - Office of Water Services Y1 - 2002/05// PY - 2002 DA - May 2002 VL - 1 KW - Aqualine Abstracts; Water Resources Abstracts KW - British Isles, England KW - Assessments KW - Public Waters KW - British Isles, Wales 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/20597481?accountid=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+Intelligence+Online&rft.atitle=How+the+assessment+of+relative+efficiency+has+benefited+the+customers+of+water+companies+in+England+and+Wales&rft.au=Lipscomb%2C+J+C%3BKedderis%2C+G+L&rft.aulast=Lipscomb&rft.aufirst=J&rft.date=2002-04-08&rft.volume=288&rft.issue=1-2&rft.spage=13&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 - Date revised - 2008-03-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Assessments; Public Waters; British Isles, Wales; British Isles, England ER - TY - JOUR T1 - Demand management and the new European Union Water Framework Directive AN - 20088549; 8044308 AB - The new water policy ambitiously combines protection of ecological status with long-term water use and sustainable development. It is an instrument for spatial planning and integration of policies, a legal framework with common principles and environmental and sustainability objectives. Main objectives are for 2015 with strong obligations also in early years: Protect high ecological status and good surface water status; good groundwater status; respect protected nature and drinking water areas. "No-deterioration" of status from entry into force. Controls and reviews of abstraction and impoundment permits, ban on discharges to groundwater, analysis of long-term water demand and supply, pricing of water use and measures to promote efficient and sustainable water use. Good water status combines social and ecological needs, allowing human impact. Good surface water status is a rich, balanced, ecosystem. Good groundwater status is abstraction without loss of ecological quality in surface water, wetlands and terrestrial ecosystems and conformity e.g. with nitrate and pesticides standards. One river Basin District - One Management Plan, co-operation is required of all parties sharing the basin with measures for the entire basin, including the Urban Waste Water, Nitrates, Industry Emission and Nature Protection Directives. Supplementary measures necessary for good and high status must be included. Development of cross-sector strategies and co-ordination in particular with agriculture and regional policy is foreseen. Extensive public consultation is required. Growing demand and deterioration of waters threatens wise use of resources. Economic development, urbanisation, tourism, agriculture, industrial and urban discharges, land fills, mismanagement of reservoirs, and water transfers contribute to this. Obligations in early and final stages of implementation are relevant to the operation of the Canal de Isabel II and the Madrid water supply systems. JF - Water Intelligence Online AU - Olsen, A M AD - Danish Environmental Protection Agency, Strandgade 29 - DK-1401 Copenhagen K, Denmark, asgermeulengracht@olsen.mail.dk Y1 - 2002/05// PY - 2002 DA - May 2002 VL - 1 KW - Sustainability Science Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - River Basins KW - Ecosystems KW - Sustainable development KW - Basins KW - Water supplies KW - Wetlands KW - water demand KW - Reservoirs KW - water policy KW - management plans KW - agriculture KW - River basins KW - Protection KW - European Union KW - Surface-groundwater Relations KW - terrestrial ecosystems KW - Groundwater KW - Agriculture KW - Spain, Castilla, Madrid KW - Water Management KW - Urbanization KW - Surface water KW - Water Use KW - spatial distribution KW - water use KW - Nitrates KW - Reviews KW - Drinking water KW - AQ 00001:Water Resources and Supplies KW - M3 1010:Issues in Sustainable Development KW - SW 4050:Water law and institutions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20088549?accountid=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+Intelligence+Online&rft.atitle=Demand+management+and+the+new+European+Union+Water+Framework+Directive&rft.au=Olsen%2C+A+M&rft.aulast=Olsen&rft.aufirst=A&rft.date=2002-05-01&rft.volume=1&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Intelligence+Online&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-03-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Groundwater; River Basins; Water Use; Water Management; Surface-groundwater Relations; Reservoirs; Ecosystems; Agriculture; Protection; European Union; Spain, Castilla, Madrid; Surface water; water use; agriculture; Basins; Nitrates; Sustainable development; water policy; Water supplies; terrestrial ecosystems; Urbanization; River basins; management plans; Drinking water; Wetlands; water demand; spatial distribution; Reviews ER - TY - JOUR T1 - The development and testing of a dermal exposure system for pharmacokinetic studies of administered and ambient water contaminants AN - 18890018; 5749632 AB - In order to investigate the pharmacokinetics of water-borne chemicals while eliminating exposures by other routes, a dermal exposure system was developed to expose the hand and forearm of human subjects. The goal was, primarily, to study the dermal pharmacokinetics of methyl tertiary butyl ether (MTBE), a water contaminant, and, secondarily, the ambient disinfection byproducts (DBPs). MTBE is used as a fuel oxygenate and DBPs result from chlorination of drinking water. The DBPs measured in the water and blood of the subjects were chloroform, bromodichloromethane, and dibromochloromethane. The dermal exposure system was constructed of inert and impervious materials. The interface between the glass and Teflon exposure tank and the subject was custom-made of clear Tedlar (polyvinylfluoride) so that the depth of the arm in the media could be monitored. Sampling of the water concentration of the test chemical, MTBE, demonstrated stability over the duration of the exposure. A temperature loss of about 1.5 degree C occurred over the course of the 1-h exposure. Blood concentrations taken from 14 human subjects before, during, and after the 1-h exposure demonstrated that measurable MTBE and DBPs were absorbed. This system has the advantages of maintaining contaminant concentration and exposing an anatomically distinct body region, and the convenience of blood sampling. JF - Journal of Pharmacological and Toxicological Methods AU - Prah, J D AU - Blount, B AU - Cardinali, F L AU - Ashley, D L AU - Leavens, T AU - Case, M W AD - National Health and Environmental Effects Research Laboratory, Office of Research and Development, US Environmental Protection Agency, MD 58B, Research Triangle Park, NC 27711, USA Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 189 EP - 195 VL - 47 IS - 3 SN - 1056-8719, 1056-8719 KW - exposure KW - man KW - pharmacokinetics KW - Toxicology Abstracts KW - X 24221:Toxicity testing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18890018?accountid=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+Pharmacological+and+Toxicological+Methods&rft.atitle=The+development+and+testing+of+a+dermal+exposure+system+for+pharmacokinetic+studies+of+administered+and+ambient+water+contaminants&rft.au=Prah%2C+J+D%3BBlount%2C+B%3BCardinali%2C+F+L%3BAshley%2C+D+L%3BLeavens%2C+T%3BCase%2C+M+W&rft.aulast=Prah&rft.aufirst=J&rft.date=2002-05-01&rft.volume=47&rft.issue=3&rft.spage=189&rft.isbn=&rft.btitle=&rft.title=Journal+of+Pharmacological+and+Toxicological+Methods&rft.issn=10568719&rft_id=info:doi/10.1016%2FS1056-8719%2803%2900004-2 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/S1056-8719(03)00004-2 ER - TY - JOUR T1 - Persistent Abnormalities in the Rat Mammary Gland following Gestational and Lactational Exposure to 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) AN - 18446083; 5419858 AB - 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) exposure during gestation has revealed reproductive anomalies in rat offspring, including inconclusive reports of stunted mammary development in females (Brown et al., 1998, Carcinogenesis 19, 1623-1629; Lewis et al., 2001, Toxicol. Sci. 62, 46-53). The current studies were designed to examine mammary-gland development in female offspring exposed in utero and lactationally to TCDD, and to determine a critical exposure period and cellular source of these effects. Long-Evans rats were exposed to 1 mu g TCDD/kg body weight (bw) or vehicle on gestation day (GD) 15. TCDD-exposed females sacrificed on postnatal days (PND) 4, 25, 33, 37, 45, and 68 weighed significantly less than control litter mates, and peripubertal animals exhibited delayed vaginal opening and persistent vaginal threads, yet did not display altered estrous cyclicity. Mammary glands taken from TCDD-exposed animals on PND 4 demonstrated reduced primary branches, decreased epithelial elongation, and significantly fewer alveolar buds and lateral branches. This phenomenon persisted through PND 68 when, unlike fully developed glands of controls, TCDD-exposed rats retained undifferentiated terminal structures. Glands of offspring exposed to TCDD or oil on gestation days 15 and 20 or lactation days 1, 3, 5, and 10 were examined on PND 4 or 25 to discern that GD 15 was a critical period for consistent inhibition of epithelial development. Experiments using mammary epithelial transplantation between control and TCDD-exposed females suggested that the stroma plays a major role in the retarded development of the mammary gland following TCDD exposure. Our data suggest that exposure to TCDD prior to migration of the mammary bud into the fat pad permanently alters mammary epithelial development in female rat offspring. JF - Toxicological Sciences AU - Fenton, SE AU - Hamm, J T AU - Birnbaum, L S AU - Youngblood, G L AD - Division of Reproductive Toxicology and Division of Experimental Toxicology, Office of Research and Development, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 63 EP - 74 VL - 67 IS - 1 SN - 1096-6080, 1096-6080 KW - rats KW - Toxicology Abstracts KW - X 24154:Pathology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18446083?accountid=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=Persistent+Abnormalities+in+the+Rat+Mammary+Gland+following+Gestational+and+Lactational+Exposure+to+2%2C3%2C7%2C8-Tetrachlorodibenzo-p-dioxin+%28TCDD%29&rft.au=Fenton%2C+SE%3BHamm%2C+J+T%3BBirnbaum%2C+L+S%3BYoungblood%2C+G+L&rft.aulast=Fenton&rft.aufirst=SE&rft.date=2002-05-01&rft.volume=67&rft.issue=1&rft.spage=63&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 ER - TY - JOUR T1 - Proinflammatory and Th1 Cytokine Alterations following Ultraviolet Radiation Enhancement of Disease Due to Influenza Infection in Mice AN - 18441448; 5419861 AB - Exposure of rodents to immunosuppressive agents such as ozone, dioxin, or ultraviolet radiation (UVR) leads to increased morbidity and mortality following influenza virus infection. However, these adverse effects are not related to the suppression of virus-specific immune responses. Our laboratory showed that UVR increased the morbidity, mortality, and pathogenesis of influenza virus without affecting protective immunity to the virus, as measured by resistance to reinfection, suggesting that UVR and other immunosuppressive pollutants such as dioxin and ozone may exacerbate early responses that contribute to the pathogenesis of a primary viral infection. In the present study, we examined the mechanism of UVR-enhanced mortality in the absence of effects on virus-specific immunity and tested the hypothesis that modulation of cytokine levels was associated with increased deaths and body weight loss. BALB/c mice were exposed to 8.2 kJ/m super(2) UVR and were infected 3 days later with a sublethal influenza virus infection (LD sub(40) of mouse-adapted Hong Kong influenza A/68, H sub(3)N sub(2)). Influx of inflammatory cells, proinflammatory cytokines, and cytokines produced by T-helper lymphocytes (Th1 and Th2) were measured in lung homogenates (LH) as well as in bronchoalveolar lavage fluid (BAL). UVR preexposure decreased the influenza-induced lymphocytic influx 5 days after infection, but did not alter macrophage and neutrophil influx into the lung, or increase virus titers significantly. Although interferon (IFN)- gamma , total interleukin (IL)-12, IL-6, and TNF- alpha were altered in mice that received UVR exposure prior to infection, no clear association was made that correlated with the UVR-induced increase in body weight loss and mortality due to influenza infection. JF - Toxicological Sciences AU - Ryan, L K AU - Copeland, L R AU - Daniels, MJ AU - Costa, E R AU - Selgrade, MJK AD - Immunotoxicology Branch, Experimental Toxicology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 88 EP - 97 VL - 67 IS - 1 SN - 1096-6080, 1096-6080 KW - mice KW - Toxicology Abstracts KW - X 24210:Radiation & radioactive materials UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18441448?accountid=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=Proinflammatory+and+Th1+Cytokine+Alterations+following+Ultraviolet+Radiation+Enhancement+of+Disease+Due+to+Influenza+Infection+in+Mice&rft.au=Ryan%2C+L+K%3BCopeland%2C+L+R%3BDaniels%2C+MJ%3BCosta%2C+E+R%3BSelgrade%2C+MJK&rft.aulast=Ryan&rft.aufirst=L&rft.date=2002-05-01&rft.volume=67&rft.issue=1&rft.spage=88&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 ER - TY - JOUR T1 - Evaluation of the Aromatase Inhibitor Fadrozole in a Short-Term Reproduction Assay with the Fathead Minnow (Pimephales promelas) AN - 18437755; 5419866 AB - Cytochrome P450 aromatase (CYP19) is a key enzyme in vertebrate steroidogenesis, catalyzing the conversion of C19 androgens to C18 estrogens such as beta -estradiol (E2). The objective of this study was to assess effects of the CYP19 inhibitor fadrozole on fathead minnow (Pimephales promelas) reproductive endocrinology and physiology in a short-term reproduction assay proposed for identifying specific classes of endocrine-disrupting chemicals. A concentration-dependent reduction in fecundity was observed in fish exposed for 21 days to water concentrations of fadrozole ranging from 2 to 50 mu g/l. Consistent with the expected mechanism of action, there was a significant inhibition of brain aromatase activity in both male and female fathead minnows exposed to fadrozole. In females, this inhibition was accompanied by a concentration-dependent decrease in plasma E2 and vitellogenin concentrations; the latter observation is consistent with the fact that activation of the estrogen receptor by E2 initiates hepatic vitellogenin production in oviparous vertebrates. Histological assessment of ovaries from females exposed to fadrozole indicated a decrease in mature oocytes and an increase in preovulatory atretic follicles. Exposure of male fathead minnows to fadrozole significantly increased plasma concentrations of the androgens testosterone (T) and 11-ketotestosterone (KT) and resulted in a marked accumulation of sperm in the testes. Results of this study indicate that the proposed fathead minnow assay should effectively identify test chemicals as potential aromatase inhibitors, both in the context of their reproductive toxicity and the specific mechanism of action. These results also should be of utility in assessing the potential ecological risk of CYP19 inhibitors, in particular in the context of relating alterations in subcellular indicators of endocrine function (changes in steroids, proteins) to adverse consequences in the whole organism. JF - Toxicological Sciences AU - Ankley, G T AU - Kahl, MD AU - Jensen, K M AU - Hornung, M W AU - Korte, J J AU - Makynen, E A AU - Leino, R L 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 - 2002/05// PY - 2002 DA - May 2002 SP - 121 EP - 130 VL - 67 IS - 1 SN - 1096-6080, 1096-6080 KW - Fathead minnow KW - aromatase KW - fadrozole KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Toxicology Abstracts KW - Q1 01344:Reproduction and development KW - Q5 01504:Effects on organisms KW - X 24221:Toxicity testing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18437755?accountid=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=Evaluation+of+the+Aromatase+Inhibitor+Fadrozole+in+a+Short-Term+Reproduction+Assay+with+the+Fathead+Minnow+%28Pimephales+promelas%29&rft.au=Ankley%2C+G+T%3BKahl%2C+MD%3BJensen%2C+K+M%3BHornung%2C+M+W%3BKorte%2C+J+J%3BMakynen%2C+E+A%3BLeino%2C+R+L&rft.aulast=Ankley&rft.aufirst=G&rft.date=2002-05-01&rft.volume=67&rft.issue=1&rft.spage=121&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 ER - TY - JOUR T1 - Effects of recreational clam harvesting on eelgrass (Zostera marina) and associated infaunal invertebrates: in situ manipulative experiments AN - 18400286; 5384951 AB - The effect of recreational clam harvesting on eelgrass (Zostera marina L.) was experimentally tested by raking or digging for clams in experimental 1 m super(2) plots located in a Yaquina Bay (Newport, OR) eelgrass meadow. After three monthly treatments, eelgrass measures of biomass, primary production (leaf elongation), and percent cover were compared between experimental and control (undisturbed) plots. Benthic macro (retained on 0.5 mm mesh sieve) and mega (retained on 3 mm sieve) infaunal samples were also taken to compare species number and abundances. Results indicated that clam raking did not appreciably impact any measured parameter. In contrast, clam digging reduce eelgrass cover, above-ground biomass and below-ground biomass in measurements made 1 month after the last of three monthly treatments. Although differences between control and treatment plots persisted 10 months after the last clam digging treatment, these differences were not statistically significant. Approximately 10% of the eelgrass of Yaquina Bay is subjected to recreational clamming and as this activity is generally less intense than that employed in this study, it is unlikely that recreational clamming has a major impact on eelgrass beds in the Yaquina estuary. This conclusion should be viewed with caution as multi-year disturbances were not investigated and there are differences in sediment characteristics and clam abundances between experimental sites and those sites that are intensively harvested by the public. JF - Aquatic Botany AU - Boese, B L AD - US Environmental Protection Agency, Coastal Ecology Branch, Hatfield Marine Science Center, 2111 SE Marine Science Drive, Newport, OR 973656-5260, USA, boese.bruce@epamail.epa.gov Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 63 EP - 74 VL - 73 IS - 1 SN - 0304-3770, 0304-3770 KW - Bivalves KW - USA, Oregon, Newport, Yaquina Bay KW - clam digging KW - clam raking KW - recreational clamming KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Oceanic Abstracts; Ecology Abstracts; Water Resources Abstracts KW - Brackish KW - D 04640:Other angiosperms KW - O 4090:Conservation and Environmental Protection KW - SW 0810:General KW - P 1000:MARINE POLLUTION KW - Q5 01521:Mechanical and natural changes KW - SW 0890:Estuaries UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18400286?accountid=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=Aquatic+Botany&rft.atitle=Effects+of+recreational+clam+harvesting+on+eelgrass+%28Zostera+marina%29+and+associated+infaunal+invertebrates%3A+in+situ+manipulative+experiments&rft.au=Boese%2C+B+L&rft.aulast=Boese&rft.aufirst=B&rft.date=2002-05-01&rft.volume=73&rft.issue=1&rft.spage=63&rft.isbn=&rft.btitle=&rft.title=Aquatic+Botany&rft.issn=03043770&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 - Brackish ER - TY - JOUR T1 - Atmospheric mercury simulation using the CMAQ model: formulation description and analysis of wet deposition results AN - 16146951; 5408204 JF - Atmospheric Environment AU - Bullock, OR Jr AU - Brehme, KA AD - US EPA, NERL/AMD, Mail Drop D243-03, Triangle Park, NC 27711, USA, bullock.russell@epa.gov Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 2135 EP - 2146 VL - 36 IS - 13 SN - 1352-2310, 1352-2310 KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Mercury in the atmosphere KW - Mathematical models KW - Atmospheric pollution KW - Atmospheric chemistry KW - Mercury KW - Wet deposition KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16146951?accountid=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=Atmospheric+mercury+simulation+using+the+CMAQ+model%3A+formulation+description+and+analysis+of+wet+deposition+results&rft.au=Bullock%2C+OR+Jr%3BBrehme%2C+KA&rft.aulast=Bullock&rft.aufirst=OR&rft.date=2002-05-01&rft.volume=36&rft.issue=13&rft.spage=2135&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 - 2002-09-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Mercury in the atmosphere; Atmospheric pollution; Wet deposition; Mathematical models; Atmospheric chemistry; Mercury ER - TY - JOUR T1 - Experiments with a Resin-in-Pulp Process for Treating Lead-Contaminated Soil AN - 16135569; 5384688 AB - This paper presents the results of experiments to evaluate the potential for using a resin-in-pulp process to remove lead contamination from soil. These experiments examined the kinetics and equilibrium partitioning of lead, lead carbonate, lead oxide, and lead sulfate in resin-soil-acetate buffer systems. The results show the trade-offs to be made among the amount of resin used, the number of contacting stages that may be needed to meet a target final soil concentration, the contact time, the solution pH, and the solution acetate concentration. JF - Journal of Environmental Engineering AU - Griffiths, R A AD - National Risk Management Research Laboratory, U.S. Environmental Protection Agency, Cincinnati, OH 45268, USA Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 416 EP - 422 VL - 128 IS - 5 SN - 0733-9372, 0733-9372 KW - resin-in-pulp process KW - Pollution Abstracts KW - Soil remediation KW - Heavy metals KW - Kinetics KW - Soil contamination KW - Lead KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16135569?accountid=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+Engineering&rft.atitle=Experiments+with+a+Resin-in-Pulp+Process+for+Treating+Lead-Contaminated+Soil&rft.au=Griffiths%2C+R+A&rft.aulast=Griffiths&rft.aufirst=R&rft.date=2002-05-01&rft.volume=128&rft.issue=5&rft.spage=416&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Engineering&rft.issn=07339372&rft_id=info:doi/10.1061%2F%28ASCE%290733-9372%282002%29128%3A5%28416%29 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-07-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Soil remediation; Heavy metals; Kinetics; Soil contamination; Lead DO - http://dx.doi.org/10.1061/(ASCE)0733-9372(2002)128:5(416) ER - TY - JOUR T1 - Mining environmental toxicology information: web resources AN - 18403416; 5391260 AB - Environmental toxicology is the study of the ecological effects of anthropogenic substances released into the environment. It is a relatively diverse field addressing impacts to aquatic and terrestrial organisms and communities. The determination of potential risk associated with toxic agents is of interest to government regulators, industry, researchers, private organizations and citizen groups. In assessing the ecological risk associated with a chemical stressor, it is important to establish linkages between likely exposure concentrations and adverse effects to ecological receptors. To do so requires access to reliable information resources. The proper application of such data requires familiarity with the scientific literature and keeping abreast of new and emerging issues as well as state-of-the-art research findings and methods. In addition, an understanding of government regulations as they relate to environmental issues is also of primary interest. The advent of the Web has made these tools accessible at computer desktops. This review focuses on currently available free Web resources related to environmental toxicology, specifically those which address available empirical data sources, predictive tools and publications of interest such as standard test methods, guidance documents and governmental regulations. JF - Toxicology AU - Russom, CL AD - US Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN 55804, USA, russom.chris@epa.gov Y1 - 2002/04/25/ PY - 2002 DA - 2002 Apr 25 SP - 75 EP - 88 VL - 173 IS - 1-2 SN - 0300-483X, 0300-483X KW - ecotoxicity KW - Toxicology Abstracts KW - X 24240:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18403416?accountid=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=Mining+environmental+toxicology+information%3A+web+resources&rft.au=Russom%2C+CL&rft.aulast=Russom&rft.aufirst=CL&rft.date=2002-04-25&rft.volume=173&rft.issue=1-2&rft.spage=75&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 ER - TY - JOUR T1 - The Application of Tris Buffer and Copper Sulfate for the Preservation of Phenylurea Pesticides Analyzed Using U.S. EPA Method 532 in the UCMR Survey AN - 19429122; 5475939 AB - A high performance liquid chromatographic method was developed to meet the U.S. Environmental Protection Agency's (EPA) Unregulated Contaminant Monitoring Rule (UCMR) Survey need for the analysis of phenylurea pesticides in drinking waters. Many of these phenylurea compounds were demonstrated to degrade rapidly in the presence of the residual chlorine disinfectant in drinking waters. This degradation was halted by the addition of a tris buffer, which was initially chosen to optimize the sample pH prior to extraction. Copper sulfate was found to prevent the regrowth of microorganisms in surface waters, which was observed upon dechlorination. Tris buffer provided the additional benefit of keeping the copper sulfate preservative in solution even in groundwater matrices that caused precipitation of copper in its absence. A C sub(18) solid phase, in cartridge or disk form, was used to efficiently extract target compounds from the preserved drinking water matrices. A 21-day storage stability study, together with precision and accuracy studies, demonstrated that this method had suitable sensitivity, selectivity, accuracy, precision, and ruggedness for use in the EPA's UCMR drinking water occurrence survey. JF - Environmental Science & Technology AU - Bassett, M V AU - Wendelken, S C AU - Dattilio, T A AU - Pepich, B V AU - Munch, D J AD - IT Corporation, Technology Applications Group, 26 West Martin Luther King Drive, Cincinnati, OH 45268, USA, bassett.margie@EPA.gov Y1 - 2002/04/15/ PY - 2002 DA - 2002 Apr 15 SP - 1809 EP - 1814 VL - 36 IS - 8 SN - 0013-936X, 0013-936X KW - copper sulfate KW - phenylurea KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Analytical Methods KW - Water supplies (Potable) KW - Water Pollution KW - Drinking water KW - A 01450:Environmental Pollution & Waste Treatment 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/19429122?accountid=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=The+Application+of+Tris+Buffer+and+Copper+Sulfate+for+the+Preservation+of+Phenylurea+Pesticides+Analyzed+Using+U.S.+EPA+Method+532+in+the+UCMR+Survey&rft.au=Bassett%2C+M+V%3BWendelken%2C+S+C%3BDattilio%2C+T+A%3BPepich%2C+B+V%3BMunch%2C+D+J&rft.aulast=Bassett&rft.aufirst=M&rft.date=2002-04-15&rft.volume=36&rft.issue=8&rft.spage=1809&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 - 2003-09-01 N1 - Last updated - 2014-02-11 N1 - SubjectsTermNotLitGenreText - Drinking water; Water supplies (Potable); Water Pollution ER - TY - JOUR T1 - US EPA's acute reference exposure methodology for acute inhalation exposures. AN - 71682891; 12013548 AB - The US Environmental Protection Agency (EPA) National Center for Environmental Assessment is engaged in the development of a methodology for Agency use to perform risk assessments for non-cancer effects due to acute inhalation exposures. The methodology will provide general guidance for deriving chemical-specific acute exposure benchmarks called acute reference exposures (AREs). Chemical-specific AREs are analogous to reference concentra tions (RfCs) for chronic non-cancer effects and will be incorporated in chemical-specific files in the US EPA's Integrated Risk Information System (IRIS) as they are developed and reviewed. AREs will have wide applicability in assessing the potential health risks of accidental and routine acute releases of chemicals to the environment. The proposed methodology for ARE development provides a framework for choosing an optimal derivation approach, depending on the type of data available, from the no-observed-adverse-effect level (NOAEL), benchmark concentration (BMC), or categorical regression approaches. Uncertainty factors are applied to the point of departure, determined by one of the recommended approaches, to derive the ARE. Due to the capability to use more exposure-response information than the NOAEL approach allows, exposure-response analyses such as BMC and categorical regression are favored as methods to develop the point of departure when the available database will support such analyses. The NOAEL approach is suitable when the data are insufficient to support exposure-response modeling. Applications of the proposed ARE methodology are illustrated by the derivation of example AREs for hydrogen sulfide and hexachlorocyclopentadiene, which showcase the categorical regression and NOAEL approaches, respectively. In addition, a recent review of the proposed ARE methodology by the US EPA Risk Assessment Forum is discussed. JF - The Science of the total environment AU - Strickland, Judy A AU - Foureman, Gary L AD - National Center for Environmental Assessment MD 52, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA. strick12@niehs.nih.gov Y1 - 2002/04/08/ PY - 2002 DA - 2002 Apr 08 SP - 51 EP - 63 VL - 288 IS - 1-2 SN - 0048-9697, 0048-9697 KW - Air Pollutants KW - 0 KW - Hydrocarbons, Chlorinated KW - Teratogens KW - Xenobiotics KW - hexachlorocyclopentadiene KW - IP6ATU242I KW - Hydrogen Sulfide KW - YY9FVM7NSN KW - Index Medicus KW - United States KW - Reference Values KW - No-Observed-Adverse-Effect Level KW - Hydrocarbons, Chlorinated -- toxicity KW - Humans KW - Teratogens -- toxicity KW - Hydrogen Sulfide -- adverse effects KW - Air Pollutants -- adverse effects KW - Risk Assessment KW - United States Environmental Protection Agency KW - Inhalation Exposure KW - Xenobiotics -- adverse effects KW - Neoplasms -- etiology KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71682891?accountid=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=US+EPA%27s+acute+reference+exposure+methodology+for+acute+inhalation+exposures.&rft.au=Strickland%2C+Judy+A%3BFoureman%2C+Gary+L&rft.aulast=Strickland&rft.aufirst=Judy&rft.date=2002-04-08&rft.volume=288&rft.issue=1-2&rft.spage=51&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 - 2002-10-23 N1 - Date created - 2002-05-15 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A pharmacokinetic model for estimating exposure of Americans to dioxin-like compounds in the past, present, and future AN - 18563683; 5378779 AB - Empirical evidence suggests that exposure of Americans to dioxin-like compounds was low during the early decades of the 20th century, then increased during the 1940s and 1950s, reaching a peak in the 1960s and 1970s, and progressively decreased to lower levels in the 1980s and 1990s. Such evidence includes dioxin analysis of carbon-dated sediment cores of lakes and rivers, preserved meat samples from different decades of the 20th century, and limited body burden measurements of dioxin-like compounds. Pinsky and Lorber (1998) summarized studies measuring 2,3,7,8-TCDD in blood and adipose tissue, and found a range of 10-20 pg/g (ppt) lipid during the 1970s, and 2-10 ppt lipid during the 1980s. This study reviews body burdens of dioxin toxic equivalents, TEQs, to find a range from approximately 50 to 80 ppt lipid during the 1970s, 30-50 ppt lipid during the 1980s, and 10-20 ppt lipid during the 1990s (TEQs comprised of the 17 dioxin and furan congeners only). Pinsky and Lorber (1998) investigated historical exposure trends for 2,3,7,8-TCDD by using a single-compartment, first-order pharmacokinetic model. The current study extends this prior effort by modeling dioxin TEQs instead of the single compound, 2,3,7,8-TCDD. TEQs are modeled as though they were a single compound, in contrast to an approach where the individual dioxin and furan congeners are modeled separately. It was found that body burdens of TEQs during the 1970s, 1980s and 1990s could be modeled by assuming a historical dose which began the century at low levels of approximately 0.5 pg TEQ/kg/day, rose during the middle decades of the 20th century to over 6 pg TEQ/kg/day, and declined to current levels of approximately 0.5 pg TEQ/kg/day. Trends in individual and population body burdens of TEQs are also investigated using this PK modeling framework. A key uncertainty of this effort -- assuming that TEQs behave as though they were a single compound -- is discussed and analyzed. JF - Science of the Total Environment AU - Lorber, M AD - National Center for Environmental Assessment, Office of Research and Development, US Environmental Protection Agency, 1200 Pennsylvania Ave, NW, Washington, DC, USA, lorber.matthew@epa.gov Y1 - 2002/04/08/ PY - 2002 DA - 2002 Apr 08 SP - 81 EP - 95 VL - 288 IS - 1-2 SN - 0048-9697, 0048-9697 KW - man KW - Health & Safety Science Abstracts; Risk Abstracts; Toxicology Abstracts; Pollution Abstracts KW - X 24222:Analytical procedures KW - R2 23060:Medical and environmental health 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/18563683?accountid=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=Science+of+the+Total+Environment&rft.atitle=A+pharmacokinetic+model+for+estimating+exposure+of+Americans+to+dioxin-like+compounds+in+the+past%2C+present%2C+and+future&rft.au=Lorber%2C+M&rft.aulast=Lorber&rft.aufirst=M&rft.date=2002-04-08&rft.volume=288&rft.issue=1-2&rft.spage=81&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 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Issues and applications in toxicology and risk assessment. N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Incorporating human interindividual biotransformation variance in health risk assessment AN - 18393407; 5378773 AB - The protection of sensitive individuals within a population dictates that measures other than central tendencies be employed to estimate risk. The refinement of human health risk assessments for chemicals metabolized by the liver to reflect data on human variability can be accomplished through (1) the characterization of enzyme expression in large banks of human liver samples, (2) the employment of appropriate techniques for the quantification and extrapolation of metabolic rates derived in vitro, and (3) the judicious application of physiologically based pharmacokinetic (PBPK) modeling. While in vitro measurements of specific biochemical reactions from multiple human samples can yield qualitatively valuable data on human variance, such measures must be put into the perspective of the intact human to yield the most valuable predictions of metabolic differences among humans. For quantitative metabolism data to be the most valuable in risk assessment, they must be tied to human anatomy and physiology, and the impact of their variance evaluated under real exposure scenarios. For chemicals metabolized in the liver, the concentration of parent chemical in the liver represents the substrate concentration in the Michaelis-Menten description of metabolism. Metabolic constants derived in vitro may be extrapolated to the intact liver, when appropriate conditions are met. Metabolic capacity V sub(max); the maximal rate of the reaction) can be scaled directly to the concentration of enzyme (or enzyme fraction) contained in the liver. Several environmental, genetic and lifestyle factors can influence the concentration of cytochrome P450 forms (CYP) in the liver by affecting either (1) the extent to which the CYP forms are expressed in the endoplasmic reticulum of the cell (isolated as the microsomal fraction from tissue homogenates), or (2) the expression of microsomal protein in intact liver tissue. Biochemically sound measures of the hepatic distribution of xenobiotic metabolizing enzymes among humans, based on expression of the enzymes within microsomal protein and the distribution of microsomal protein among intact livers, can be combined with metabolic constants derived in vitro to generate values consistent with those employed in PBPK models. When completed, the distribution (and bounds) of V sub(max) values can be estimated and included in PBPK models. Exercising such models under plausible exposure scenarios will demonstrate the extent to which human interindividual enzyme variance can influence parameters (i.e., the detoxication of a toxic chemical through metabolism) that may influence risk. In this article, we describe a methodology and conditions which must exist for such an approach to be successful. JF - Science of the Total Environment AU - Lipscomb, J C AU - Kedderis, G L AD - US Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment, 26 W. ML King Drive, MD-190, Cincinnati, Ohio 45268, USA, Lipscomb.John@epa.gov Y1 - 2002/04/08/ PY - 2002 DA - 2002 Apr 08 SP - 13 EP - 21 VL - 288 IS - 1-2 SN - 0048-9697, 0048-9697 KW - methodology KW - Risk Abstracts; Toxicology Abstracts KW - R2 23060:Medical and environmental health KW - X 24221:Toxicity testing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18393407?accountid=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=Science+of+the+Total+Environment&rft.atitle=Incorporating+human+interindividual+biotransformation+variance+in+health+risk+assessment&rft.au=Lipscomb%2C+J+C%3BKedderis%2C+G+L&rft.aulast=Lipscomb&rft.aufirst=J&rft.date=2002-04-08&rft.volume=288&rft.issue=1-2&rft.spage=13&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 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Issues and applications in toxicology and risk assessment. N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Synergy and other ineffective mixture risk definitions AN - 18387551; 5378775 AB - A substantial effort has been spent over the past few decades to label toxicologic interaction outcomes as synergistic, antagonistic, or additive. Although useful in influencing the emotions of the public and the press, these labels have contributed fairly little to our understanding of joint toxic action. Part of the difficulty is that their underlying toxicological concepts are only defined for two chemical mixtures, while most environmental and occupational exposures are to mixtures of many more chemicals. Furthermore, the mathematical characterizations of synergism and antagonism are inextricably linked to the prevailing definition of `no interaction,' instead of some intrinsic toxicological property. For example, the US EPA has selected dose addition as the no-interaction definition for mixture risk assessment, so that synergism would represent toxic effects that exceed those predicted from dose addition. For now, labels such as synergism are useful to regulatory agencies, both for qualitative indications of public health risk as well as numerical decision tools for mixture risk characterization. Efforts to quantify interaction designations for use in risk assessment formulas, however, are highly simplified and carry large uncertainties. Several research directions, such as pharmacokinetic measurements and models, and toxicogenomics, should promote significant improvements by providing multi-component data that will allow biologically based mathematical models of joint toxicity to replace these pairwise interaction labels in mixture risk assessment procedures. JF - Science of the Total Environment AU - Hertzberg, R C AU - MacDonell, M M AD - US Environmental Protection Agency, National Center for Environmental Assessment, 61 Forsyth St, Atlanta, GA, USA, hertzberg.rick@epamail.epa.gov Y1 - 2002/04/08/ PY - 2002 DA - 2002 Apr 08 SP - 31 EP - 42 VL - 288 IS - 1-2 SN - 0048-9697, 0048-9697 KW - synergism KW - Risk Abstracts; Toxicology Abstracts KW - X 24222:Analytical procedures KW - R2 23060:Medical and environmental health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18387551?accountid=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=Science+of+the+Total+Environment&rft.atitle=Synergy+and+other+ineffective+mixture+risk+definitions&rft.au=Hertzberg%2C+R+C%3BMacDonell%2C+M+M&rft.aulast=Hertzberg&rft.aufirst=R&rft.date=2002-04-08&rft.volume=288&rft.issue=1-2&rft.spage=31&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 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Issues and applications in toxicology and risk assessment. N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Health advisory values for drinking water contaminants and the methodology for determining acute exposure values AN - 1665491870; 5378776 AB - The Health Advisory (HA) Program of the Office of Water provides informal technical guidance to Federal, State and local officials responsible for protecting health when emergency spills or contamination situations occur. Under this program, first initiated in 1985, HA values are developed for 1-day, 10-day, longer-term (approx. 7 years) and lifetime exposures based on data describing non- cancer endpoints of toxicity. For substances that are known or probable human carcinogens, lifetime HAs are not recommended. In these situations, the HA document provides an estimate of the drinking water concentration that is equivalent to a 10 super(-4)-10 super(-6) cancer risk. US EPA has HA documents for over 175 chemicals dating from 1987 to 1998. A tabular summary of HA values can be accessed through the EPA Office of Science and Technology (OST) web page. The HA support documents provide a concise technical summary of and references for information on chemical, physical and toxicological properties, analytical methods, and treatment technologies. Some of the lifetime HA and cancer values in the HA documents may no longer agree with the most recent Agency assessment for Reference Dose (RfD) and cancer effects. However, the lifetime HA and cancer values presented in the HA tables have been updated to correspond with agency consensus values as presented in the Integrated Risk Information System (IRIS) database. JF - Science of the Total Environment AU - Donohue, J M AU - Lipscomb, J C AD - US Environmental Protection Agency, Mail Code 4304, 1200 Pennsylvania Avenue NW, Washington, DC 20460, USA Y1 - 2002/04/08/ PY - 2002 DA - 2002 Apr 08 SP - 43 EP - 49 VL - 288 IS - 1-2 SN - 0048-9697, 0048-9697 KW - Environmental Protection Agency KW - USA KW - acute exposure KW - Water Resources Abstracts; Aqualine Abstracts; Risk Abstracts; Toxicology Abstracts; Pollution Abstracts; Health & Safety Science Abstracts KW - Water supplies (Potable) KW - Chemicals KW - Risk assessment KW - Government policy KW - Public health KW - Drinking Water KW - Public Health KW - Toxicology KW - Government programs KW - Water Quality KW - Toxicity KW - Cancer KW - Water pollution KW - Diseases (Malignant) KW - Risk KW - EPA KW - Databases KW - Public-health KW - Toxicity (see also Lethal limits) KW - Contaminants KW - Drinking water KW - Water quality (Natural waters) KW - Information systems KW - R2 23090:Policy and planning KW - H 3000:Environment and Ecology KW - X 24230:Legislation & recommended standards KW - P 9000:ENVIRONMENTAL ACTION KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution 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/1665491870?accountid=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=Science+of+the+Total+Environment&rft.atitle=Health+advisory+values+for+drinking+water+contaminants+and+the+methodology+for+determining+acute+exposure+values&rft.au=Donohue%2C+J+M%3BLipscomb%2C+J+C&rft.aulast=Donohue&rft.aufirst=J&rft.date=2002-04-08&rft.volume=288&rft.issue=1-2&rft.spage=43&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 - SuppNotes - Special issue: Issues and applications in toxicology and risk assessment. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Databases; Government policy; Drinking water; Water pollution; Public health; Risk assessment; Chemicals; EPA; Government programs; Contaminants; Cancer; Toxicology; Information systems; Water supplies (Potable); Public-health; Toxicity (see also Lethal limits); Water quality (Natural waters); Diseases (Malignant); Risk; Public Health; Drinking Water; Water Quality; Toxicity ER - TY - JOUR T1 - Toxicity testing, risk assessment, and options for dredged material management. AN - 71941915; 12139319 AB - Programs for evaluating proposed discharges of dredged material into waters of the United States specify a tiered testing and evaluation protocol that includes performance of acute and chronic bioassays to assess toxicity of the dredged sediments. Although these evaluations reflect the toxicological risks associated with disposal activities to some degree, analysis activities are limited to the sediments of each dredging project separately. Cumulative risks to water column and benthic organisms at and near the designated disposal site are therefore difficult to assess. An alternate approach is to focus attention on the disposal site, with the goal of understanding more directly the risks of multiple disposal events to receiving ecosystems. Here we review current US toxicity testing and evaluation protocols, and describe an application of ecological risk assessment that allows consideration of the temporal and spatial components of risk to receiving aquatic ecosystems. When expanded to include other disposal options, this approach can provide the basis for holistic management of dredged material disposal. JF - Marine pollution bulletin AU - Munns, Wayne R AU - Berry, Walter J AU - Dewitt, Theodore H AD - NHEERL Atlantic Ecology Division, US Environmental Protection Agency, Narragansett, RI 02882, USA. munns.wayne@epa.gov Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 294 EP - 302 VL - 44 IS - 4 SN - 0025-326X, 0025-326X KW - Index Medicus KW - Animals KW - Toxicity Tests, Chronic KW - Toxicity Tests, Acute KW - Program Evaluation KW - Environmental Monitoring -- methods KW - Risk Assessment KW - Geologic Sediments -- chemistry KW - Geologic Sediments -- analysis KW - Toxicity Tests KW - Risk Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71941915?accountid=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=Marine+pollution+bulletin&rft.atitle=Toxicity+testing%2C+risk+assessment%2C+and+options+for+dredged+material+management.&rft.au=Munns%2C+Wayne+R%3BBerry%2C+Walter+J%3BDewitt%2C+Theodore+H&rft.aulast=Munns&rft.aufirst=Wayne&rft.date=2002-04-01&rft.volume=44&rft.issue=4&rft.spage=294&rft.isbn=&rft.btitle=&rft.title=Marine+pollution+bulletin&rft.issn=0025326X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-03-06 N1 - Date created - 2002-07-25 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - An overview of toxicant identification in sediments and dredged materials. AN - 71940892; 12139318 AB - The identification of toxicants affecting aquatic benthic systems is critical to sound assessment and management of our nation's waterways. Identification of toxicants can be useful in designing effective sediment remediation plans and reasonable options for sediment disposal. Knowledge of which contaminants affect benthic systems allows managers to link pollution to specific dischargers and prevent further release of toxicant(s). In addition, identification of major causes of toxicity in sediments may guide programs such as those developing environmental sediment guidelines and registering pesticides, while knowledge of the causes of toxicity which drive ecological changes such as shifts in benthic community structure would be useful in performing ecological risk assessments. To this end, the US Environmental Protection Agency has developed tools (toxicity identification and evaluation (TIE) methods) that allow investigators to characterize and identify chemicals causing acute toxicity in sediments and dredged materials. To date, most sediment TIEs have been performed on interstitial waters. Preliminary evidence from the use of interstitial water TIEs reveals certain patterns in causes of sediment toxicity. First, among all sediments tested, there is no one predominant cause of toxicity; metals, organics, and ammonia play approximately equal roles in causing toxicity. Second, within a single sediment there are multiple causes of toxicity detected; not just one chemical class is active. Third, the role of ammonia is very prominent in these interstitial waters. Finally, if sediments are divided into marine or freshwater, TIEs perforMed on interstitial waters from freshwater sediments indicate a variety of toxicants in fairly equal proportions, while TIEs performed on interstitial waters from marine sediments have identified only ammonia and organics as toxicants, with metals playing a minor role. Preliminary evidence from whole sediment TIEs indicates that organic compounds play a major role in the toxicity of marine sediments, with almost no evidence for either metal or ammonia toxicity. However, interpretation of these results may be skewed because only a small number of interstitial water (n = 13) and whole sediment (n = 5) TIEs have been completed. These trends may change as more data are collected. JF - Marine pollution bulletin AU - Ho, Kay T AU - Burgess, Robert M AU - Pelletier, Marguerite C AU - Serbst, Jonathan R AU - Ryba, Steve A AU - Cantwell, Mark G AU - Kuhn, Anne AU - Raczelowski, Pamela AD - Atlantic Ecology Division, US Environmental Protection Agency, Narragansett, RI 02882, USA. ho.kay@epa.gov Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 286 EP - 293 VL - 44 IS - 4 SN - 0025-326X, 0025-326X KW - Water Pollutants, Chemical KW - 0 KW - Index Medicus KW - Seawater -- chemistry KW - Fresh Water -- chemistry KW - Fresh Water -- analysis KW - Seawater -- analysis KW - Environmental Monitoring -- methods KW - Risk Assessment KW - Geologic Sediments -- chemistry KW - Water Pollutants, Chemical -- analysis KW - Geologic Sediments -- analysis KW - Toxicity Tests -- methods KW - Toxicity Tests -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71940892?accountid=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=Marine+pollution+bulletin&rft.atitle=An+overview+of+toxicant+identification+in+sediments+and+dredged+materials.&rft.au=Ho%2C+Kay+T%3BBurgess%2C+Robert+M%3BPelletier%2C+Marguerite+C%3BSerbst%2C+Jonathan+R%3BRyba%2C+Steve+A%3BCantwell%2C+Mark+G%3BKuhn%2C+Anne%3BRaczelowski%2C+Pamela&rft.aulast=Ho&rft.aufirst=Kay&rft.date=2002-04-01&rft.volume=44&rft.issue=4&rft.spage=286&rft.isbn=&rft.btitle=&rft.title=Marine+pollution+bulletin&rft.issn=0025326X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-03-06 N1 - Date created - 2002-07-25 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - 5-Aza-2'-deoxycytidine-induced cytotoxicity and limb reduction defects in the mouse. AN - 71598547; 11948564 AB - 5-Aza-2'-deoxycytidine (dAZA), causes hindlimb phocomelia in CD-1 mice. Studies in our laboratory have examined the hypothesis that compound- induced changes in gene expression may uniquely affect hindlimb pattern formation. The present study tests the hypothesis that dAZA causes limb dysplasia by inducing cytotoxicity among rapidly proliferating cells in the limb bud mesenchyme. Pregnant CD-1 mice were given a teratogenic dose of dAZA (i.p.) at different times on GD 10 and fetuses evaluated for skeletal development in both sets of limbs by standard methods. Using general histology and BrdU immunohistochemistry, limb mesenchymal cell death and cell proliferation were then assessed in embryos at various times post dosing, shortly after initial limb bud outgrowth. The effect of dAZA on early limb chondrogenesis was also studied using Northern analysis of scleraxis and Alcian blue staining of whole mount limb buds. Compound related hindlimb defects were not restricted to a specific set of skeletal elements but consisted of a range of temporally related limb anomalies. Modest defects of the radius were observed as well. These results are consistent with a general insult to the limb mesenchyme. Mesenchymal cell death and reduced cell proliferation were also observed in both sets of limbs. The timing and location of these effects indicate a role for cytotoxicity in the etiology of dAZA induced limb defects. These effects also agree with the greater teratogenicity of dAZA in the hindlimb because they were more pronounced in that limb. The expression of scleraxis, a marker of early chondrogenesis, was reduced 12 hr after dAZA exposure, a time coincident with maximal cell death, as was the subsequent emergence of Alcian blue stained long bone anlagen. These findings support the hypothesis that cytotoxic changes in the limb bud mesenchyme during early limb outgrowth can induce the proximal limb truncations characteristic of phocomelia after dAZA administration. Copyright 2002 Wiley-Liss, Inc. JF - Teratology AU - Rosen, Mitchell B AU - Chernoff, Neil AD - U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Reproductive Toxicology Division, Research Triangle Park, North Carolina 27711, USA. rosen.mitch@epa.gov Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 180 EP - 190 VL - 65 IS - 4 SN - 0040-3709, 0040-3709 KW - Basic Helix-Loop-Helix Transcription Factors KW - 0 KW - Scx protein, mouse KW - Teratogens KW - Transcription Factors KW - decitabine KW - 776B62CQ27 KW - Azacitidine KW - M801H13NRU KW - Index Medicus KW - Animals KW - Cell Death KW - Mice KW - Transcription Factors -- genetics KW - Immunohistochemistry KW - Cell Division KW - Azacitidine -- toxicity KW - Azacitidine -- analogs & derivatives KW - Extremities -- growth & development KW - Teratogens -- toxicity KW - Limb Deformities, Congenital -- chemically induced UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71598547?accountid=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=5-Aza-2%27-deoxycytidine-induced+cytotoxicity+and+limb+reduction+defects+in+the+mouse.&rft.au=Rosen%2C+Mitchell+B%3BChernoff%2C+Neil&rft.aulast=Rosen&rft.aufirst=Mitchell&rft.date=2002-04-01&rft.volume=65&rft.issue=4&rft.spage=180&rft.isbn=&rft.btitle=&rft.title=Teratology&rft.issn=00403709&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-06-21 N1 - Date created - 2002-04-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Evaluating the ecological significance of laboratory response data to predict population-level effects for the estruarine amphipod Ampelisca abdita. AN - 71595899; 11951963 AB - Ten-day acute mortality of the benthic amphipod Ampelisca abdita is used in a number of regulatory, research, and monitoring programs to evaluate chemical contamination of marine sediments. Although this endpoint has proven to be valuable for characterizing the relative toxicities of sediments, the significance of acute mortality with respect to population viability has not yet been established. In this study, population modeling along with empirical extrapolation were used to describe a relationship between acute mortality and population-level response of A. abdita. The research involved the performance of a standard 10-d sediment toxicity bioassay and a 70-d full life-cycle chronic population (including reproduction) bioassay exposing A. abdita to sediments spiked with concentrations of the divalent metal cadmium (normalized to acid volatile sulfide) expected to produce a range of biological effects. These data provided age-specific schedules of survival and fecundity that were used to parameterize an age-classified projection matrix model for A. abdita. Measured exposure data and population growth rate estimates, obtained using the demographic information collected during the 70-d assay, were used to develop exposure-response models. These data were also used to develop an empirical relationship between population growth rate (lambda) and acute mortality. This relationship describes how acute data may be used to predict concentrations that produce population-level effects. Model manipulations permit extrapolation of early life-stage mortality (the acute endpoint) to changes in population growth rate. These relationships were used to evaluate a range of ecologically acceptable acute mortality for A. abdita. JF - Environmental toxicology and chemistry AU - Kuhn, Anne AU - Munns, Wayne R AU - Serbst, Jonathan AU - Edwards, Phillip AU - Cantwell, Mark G AU - Gleason, Timothy AU - Pelletier, Marguerite C AU - Berry, Walter AD - U.S. Environmental Protection Agency, Atlantic Ecology Division, Narragansett, Rhode Island 02282, USA. kuhn.anne@epa.gov Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 865 EP - 874 VL - 21 IS - 4 SN - 0730-7268, 0730-7268 KW - Environmental Pollutants KW - 0 KW - Cadmium KW - 00BH33GNGH KW - Index Medicus KW - Mortality KW - Animals KW - Reference Values KW - Endpoint Determination KW - Population Dynamics KW - Environmental Exposure KW - Cadmium -- toxicity KW - Forecasting KW - Longevity KW - Risk Assessment KW - Models, Theoretical KW - Environmental Pollutants -- toxicity KW - Crustacea KW - Toxicity Tests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71595899?accountid=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+toxicology+and+chemistry&rft.atitle=Evaluating+the+ecological+significance+of+laboratory+response+data+to+predict+population-level+effects+for+the+estruarine+amphipod+Ampelisca+abdita.&rft.au=Kuhn%2C+Anne%3BMunns%2C+Wayne+R%3BSerbst%2C+Jonathan%3BEdwards%2C+Phillip%3BCantwell%2C+Mark+G%3BGleason%2C+Timothy%3BPelletier%2C+Marguerite+C%3BBerry%2C+Walter&rft.aulast=Kuhn&rft.aufirst=Anne&rft.date=2002-04-01&rft.volume=21&rft.issue=4&rft.spage=865&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 completed - 2002-10-01 N1 - Date created - 2002-04-15 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - CONF T1 - Environmental justice: building a unified vision of health and the environment. AN - 71568661; 11929721 AB - The assorted and multidimensional concerns that give rise to the issue of environmental justice have proved to be intellectually daunting and highly resistant to positive change. Low-income, people of color, and tribal communities confronting environmental stressors are beset by stressors in both the physical and social environments. For this reason, while the bifurcation of the public health and environmental fields taking place over the past several decades has yielded generally negative impacts in areas of public health, environment, and planning, the consequences for low-income and disadvantaged communities have been especially grievous. This commentary builds on the recent Institute of Medicine workshop titled "Rebuilding the Unity of Health and the Environment: A New Vision of Environmental Health for the 21st Century." The workshop organizers posited that only by thinking about environmental health on multiple levels will it be possible to merge various strategies to protect both the environment and health. In this commentary we examine how such a new vision of uniting public health and the environment can contribute to attaining environmental justice for all populations. JF - Environmental health perspectives AU - Lee, Charles Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 141 EP - 144 VL - 110 Suppl 2 KW - Environmental Pollutants KW - 0 KW - Index Medicus KW - Policy Making KW - Minority Groups KW - Social Class KW - Poverty KW - Humans KW - Liability, Legal KW - Environmental Health KW - Public Policy KW - Environmental Pollutants -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71568661?accountid=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=Environmental+justice%3A+building+a+unified+vision+of+health+and+the+environment.&rft.au=Lee%2C+Charles&rft.aulast=Lee&rft.aufirst=Charles&rft.date=2002-04-01&rft.volume=110+Suppl+2&rft.issue=&rft.spage=141&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 - 2002-05-07 N1 - Date created - 2002-04-03 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: AAOHN J. 1989 Mar;37(3):115-30 [2647086] N Engl J Med. 1975 Jan 16;292(3):123-9 [1196336] JAMA. 1990 Oct 3;264(13):1683-7 [2398607] Toxicol Ind Health. 1993 Sep-Oct;9(5):679-83 [8184440] Sociol Inq. 1983;53(2-3):273-88 [11635985] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Stachylysin may be a cause of hemorrhaging in humans exposed to Stachybotrys chartarum. AN - 71530925; 11895972 AB - Stachybotrys chartarum is a toxigenic fungus that has been associated with human health concerns such as nasal bleeding in adults and pulmonary hemosiderosis (PH) in infants. Seven of eight strains of S. chartarum isolated from homes of infants with PH in Cleveland, Ohio, and the strain from the lung of an infant with PH in Texas produced stachylysin in tryptic soy broth (TSB), whereas only one out of eight strains isolated from control homes produced stachylysin. However, all strains produced stachylysin when grown on TSB with 0.7% sheep's blood. When stachylysin was injected into Lumbricus terrestis, the erythrocruorin hemoglobin (absorbance peaks at 280 and 415 nm) was released, resulting in a lethal effect. These results support the hypothesis that stachylysin may be one agent responsible for hemorrhaging in humans. JF - Infection and immunity AU - Vesper, Stephen J AU - Vesper, Mary Jo AD - National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268, USA. Vesper.Stephen@EPA.gov Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 2065 EP - 2069 VL - 70 IS - 4 SN - 0019-9567, 0019-9567 KW - Hemolysin Proteins KW - 0 KW - Index Medicus KW - Animals KW - Oligochaeta -- drug effects KW - Electrophoresis, Polyacrylamide Gel KW - Humans KW - Species Specificity KW - Hemolysin Proteins -- isolation & purification KW - Stachybotrys -- pathogenicity KW - Hemolysin Proteins -- toxicity KW - Hemorrhage -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71530925?accountid=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=Infection+and+immunity&rft.atitle=Stachylysin+may+be+a+cause+of+hemorrhaging+in+humans+exposed+to+Stachybotrys+chartarum.&rft.au=Vesper%2C+Stephen+J%3BVesper%2C+Mary+Jo&rft.aulast=Vesper&rft.aufirst=Stephen&rft.date=2002-04-01&rft.volume=70&rft.issue=4&rft.spage=2065&rft.isbn=&rft.btitle=&rft.title=Infection+and+immunity&rft.issn=00199567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-04-11 N1 - Date created - 2002-03-15 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Environ Health Perspect. 1999 Nov;107(11):927-30 [10544162] Pediatrics. 1999 Oct;104(4 Pt 1):964-6 [10506242] Infect Immun. 2001 Feb;69(2):912-6 [11159985] Science. 1973 Aug 24;181(4101):758-60 [4737542] Nihon Saikingaku Zasshi. 1972 Sep;27(5):649-55 [4581174] J Biol Chem. 1973 Nov 25;248(22):7904-12 [4750432] J Med Microbiol. 1975 May;8(2):279-87 [1142415] Jpn J Med Sci Biol. 1975 Oct-Dec;28(5-6):328-31 [778450] Microbiol Immunol. 1977;21(1):11-22 [16196] Science. 1981 Mar 27;211(4489):1437-8 [6162199] Microbiol Rev. 1984 Dec;48(4):326-43 [6394977] Infect Immun. 1985 Sep;49(3):765-9 [4040889] Am J Vet Res. 1988 Oct;49(10):1657-60 [2973271] Am Rev Respir Dis. 1991 Apr;143(4 Pt 1):797-805 [1826193] Microbiol Rev. 1991 Dec;55(4):733-51 [1779933] Lab Invest. 1992 Mar;66(3):362-9 [1538589] Glycobiology. 1993 Apr;3(2):97-130 [8490246] Biochim Biophys Acta. 1994 Sep 13;1219(1):148-50 [8086452] Infect Immun. 1994 Nov;62(11):5154-6 [7927798] Arch Microbiol. 1996 Feb;165(2):73-9 [8593102] Infect Immun. 1996 Sep;64(9):3818-26 [8751934] Curr Opin Pediatr. 1997 Jun;9(3):219-24 [9229159] Adv Exp Med Biol. 1997;418:627-30 [9331730] Arch Pediatr Adolesc Med. 1998 Aug;152(8):757-62 [9701134] Appl Environ Microbiol. 1998 Oct;64(10):3620-5 [9758776] Microbiol Immunol. 1999;43(1):29-38 [10100744] Pediatr Res. 1999 May;45(5 Pt 1):626-34 [10231855] Appl Environ Microbiol. 1999 Jul;65(7):3175-81 [10388719] Environ Health Perspect. 1999 Jun;107 Suppl 3:495-9 [10346998] Appl Environ Microbiol. 2000 Jun;66(6):2678-81 [10831457] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Development of aquatic life criteria for selenium: a regulatory perspective on critical issues and research needs. AN - 71493858; 11879941 AB - The US is currently in the process of revising its freshwater, chronic aquatic life criterion for selenium. The fundamental issues being addressed include which environmental compartment(s) support the most reliable expression of the criterion, which form(s) of selenium should be measured in the medium (media) of choice, and which site-specific water quality (or other factors) should be linked to the expression of the criterion. Literature reviews and a recent workshop were conducted to assess the state of the science on various issues related to water-, tissue- and sediment-based criteria for selenium. Evaluation of many of these issues is ongoing. In terms of water column criteria issues, data limitations will likely restrict the expression of a criterion to operationally defined forms (e.g. total recoverable, dissolved). The specific identity of organoselenium in natural systems is lacking and may not be appropriately represented by free seleno-amino acids (e.g. selenomethionine). The available data do not appear to support quantitative relationships between chronic toxicity and water quality characteristics. In terms of a tissue-based criterion, reproductive tissue (ovary, egg) has been recommended as the tissue of choice, but practical concerns and data availability require consideration of other tissues (e.g. whole-body). Organoselenium (bound to peptides or proteins) is thought to be the form of greatest toxicological importance in fish, however, direct measurements of organoselenium compounds in tissues are very limited. Route of exposure (food vs. water uptake) may prove important for establishing diagnostic tissue residues for selenium based on laboratory data. Data on toxicological aspects of selenium in sediments appear sparse, particularly in relation to different sedimentary forms. Reliable assessments of bioaccumulation will likely be critical for making site-specific modifications to chronic selenium criteria, however, many technical issues for assessing bioaccumulation remain. The need for improved analytical methods for directly speciating organoselenium in various environmental media underpins many of the current data gaps. Improving analytical methodologies to enable affordable and reliable measurement of organoselenium compounds holds significant promise for advancing selenium ecotoxicological research. JF - Aquatic toxicology (Amsterdam, Netherlands) AU - Sappington, Keith G AD - US Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment (8623D), 1200 Pennsylvania Avenue, N.W., Washington, DC 20460, USA. sappington.keith@epa.gov Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 101 EP - 113 VL - 57 IS - 1-2 SN - 0166-445X, 0166-445X KW - Antioxidants KW - 0 KW - Water Pollutants, Chemical KW - Selenium KW - H6241UJ22B KW - Index Medicus KW - United States KW - Animals KW - Fresh Water KW - Food Chain KW - Environmental Exposure KW - Antioxidants -- analysis KW - Selenium -- metabolism KW - Selenium -- analysis KW - Antioxidants -- metabolism KW - Water Pollutants, Chemical -- analysis KW - Selenium -- toxicity KW - Water Pollutants, Chemical -- toxicity KW - Antioxidants -- toxicity KW - Water Pollutants, Chemical -- metabolism KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71493858?accountid=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=Development+of+aquatic+life+criteria+for+selenium%3A+a+regulatory+perspective+on+critical+issues+and+research+needs.&rft.au=Sappington%2C+Keith+G&rft.aulast=Sappington&rft.aufirst=Keith&rft.date=2002-04-01&rft.volume=57&rft.issue=1-2&rft.spage=101&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 - 2002-08-02 N1 - Date created - 2002-03-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Java classes for nonprocedural variogram modeling AN - 52084593; 2002-055409 AB - A set of Java (super TM) classes was written for variogram modeling to support research for US EPA's Regional Vulnerability Assessment Program (ReVA). The modeling objectives of this research program are to use conceptual programming tools for numerical analysis for regional risk assessment. The classes presented use of object-oriented design elements, and their use is described for the benefit of programmers. To help facilitate their use, class diagrams and standard JavaDoc commenting were employed. Java's support for polymorphism and inheritance is used and these are described as ways to promote extension of these classes for other geostatistical applications. Among the advantages is the ease of programming, code reuse, and conceptual, rather than procedural implementation. A graphical application for variogram modeling that uses the classes is also provided and described. It can also be used by non-programmers. This application uses a generalized least-squares fitting algorithm for robust parametric variogram model fitting through the variogram cloud. This feature makes this program unique from other freely available variogram modeling programs, though the classes are presented primarily so they may be extended for use in other Java programs. More traditional variogram plotting and fitting utilities are also provided. This application is graphical and platform-neutral. It uses classes of the recently proposed Java API for linear algebra, called the package. JF - Computers & Geosciences AU - Faulkner, Barton R Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 387 EP - 397 PB - Pergamon, New York-Oxford-Toronto VL - 28 IS - 3 SN - 0098-3004, 0098-3004 KW - Java language KW - computer languages KW - variance analysis KW - statistical analysis KW - data processing KW - simulation KW - models KW - computer programs KW - variograms KW - risk assessment KW - ecology KW - algorithms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52084593?accountid=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=Computers+%26+Geosciences&rft.atitle=Java+classes+for+nonprocedural+variogram+modeling&rft.au=Faulkner%2C+Barton+R&rft.aulast=Faulkner&rft.aufirst=Barton&rft.date=2002-04-01&rft.volume=28&rft.issue=3&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Geosciences&rft.issn=00983004&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science?_ob=JournalURL&_cdi=5840&_auth=y&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e5198452fad934c6346f38b57511c8e0 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 - 2002-01-01 N1 - Number of references - 15 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GGEOD5 N1 - SubjectsTermNotLitGenreText - algorithms; computer languages; computer programs; data processing; ecology; Java language; models; risk assessment; simulation; statistical analysis; variance analysis; variograms ER - TY - JOUR T1 - Technical considerations for a large network of ASR wells in the Comprehensive Everglades Restoration Program AN - 52016667; 2003-018929 JF - Open-File Report - U. S. Geological Survey AU - Renken, Robert A AU - Fies, Michael W AU - Komlos, Shawn B Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 87 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - water quality KW - toxic materials KW - salt-water intrusion KW - Everglades KW - surface water KW - pollution KW - ecosystems KW - water balance KW - organo-metallics KW - Florida KW - cost KW - recovery KW - feasibility studies KW - ground water KW - aquifers KW - methylmercury KW - transport KW - water treatment KW - Floridan Aquifer KW - water wells KW - USGS KW - storage KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52016667?accountid=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=Technical+considerations+for+a+large+network+of+ASR+wells+in+the+Comprehensive+Everglades+Restoration+Program&rft.au=Renken%2C+Robert+A%3BFies%2C+Michael+W%3BKomlos%2C+Shawn+B&rft.aulast=Renken&rft.aufirst=Robert&rft.date=2002-04-01&rft.volume=&rft.issue=&rft.spage=87&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/ogw/pubs/ofr0289/index.htm https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Conference title - U. S. Geological Survey artificial recharge workshop N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Last updated - 2016-10-25 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - aquifers; cost; ecosystems; Everglades; feasibility studies; Florida; Floridan Aquifer; ground water; methylmercury; organo-metallics; pollution; recovery; salt-water intrusion; storage; surface water; toxic materials; transport; United States; USGS; water balance; water quality; water treatment; water wells ER - TY - JOUR T1 - Residual mutagenicity of the Alaskan oil spill organics AN - 20100506; 5379865 AB - The Exxon Valdez, on March 24, 1989, spilled approximately eleven million gallons of Prudhoe Bay crude oil into the waters of Prince William Sound. Approximately 300 miles of contaminated beach were potentially treatable by bioremediation methods. To understand whether or not bioremediation is feasible in such rugged terrain and to examine for any potential deleterious effects, the U.S. EPA conducted one of the world's largest in situ bioremediation research projects. One of the methods used to assess any potential health effects associated with this and similar spills was the examination of mutagenicity associated with the oil spill, the weathered oil, and the products associated with bioremediation. Due to the characteristics of the samples, tests were done using the spiral Salmonella assay. Both the Prudhoe Bay crude oil and the weathered oils tested were weakly mutagenic using TA100. Organic samples collected from the treated beaches showed varying results depending upon the type and timing of the treatments. In the summer of 2001, soil samples containing residual oil from a number of beaches were again assessed for mutagenicity. No mutagenicity could be demonstrated in the organic samples from the EPA treated beaches. This is an abstract of a proposed publication and does not necessarily represent the views of the U.S. EPA or NOAA. JF - Environmental and Molecular Mutagenesis AU - Claxton, L D AU - Warren, S AU - Kremer, F AU - Short, J W AD - U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA Y1 - 2002/04// PY - 2002 DA - Apr 2002 SP - 19 PB - John Wiley & Sons, Inc., 605 Third Ave. New York NY 10158-0012 USA, [URL:http://www3.interscience.wiley.com/cgi-bin/jtoc?ID=10009058] VL - 39 SN - 0893-6692, 0893-6692 KW - USA, Alaska, Prince William Sound KW - Microbiology Abstracts B: Bacteriology; Pollution Abstracts; Water Resources Abstracts KW - Mutagens KW - Bioremediation KW - Mutagenesis KW - Oil KW - Soil KW - Crude oil KW - Sound KW - Oil Spills KW - Oil Pollution KW - Oil spills KW - Mutagenicity KW - Beaches KW - Toxicity KW - PNW, USA, Alaska, Prudhoe Bay KW - EPA KW - USA KW - Marine pollution KW - Water Pollution Effects KW - summer KW - Salmonella KW - INE, USA, Alaska, Alaska Gulf, Prince William Sound KW - P 1000:MARINE POLLUTION KW - SW 3030:Effects of pollution KW - J 02450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20100506?accountid=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=conference&rft.jtitle=Environmental+and+Molecular+Mutagenesis&rft.atitle=Residual+mutagenicity+of+the+Alaskan+oil+spill+organics&rft.au=Claxton%2C+L+D%3BWarren%2C+S%3BKremer%2C+F%3BShort%2C+J+W&rft.aulast=Claxton&rft.aufirst=L&rft.date=2002-04-01&rft.volume=39&rft.issue=&rft.spage=19&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 revised - 2003-05-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Soil; Mutagens; Beaches; Mutagenicity; Bioremediation; Sound; Oil spills; Mutagenesis; Oil; EPA; Crude oil; Marine pollution; summer; Water Pollution Effects; Oil Spills; Toxicity; Oil Pollution; Salmonella; PNW, USA, Alaska, Prudhoe Bay; USA; INE, USA, Alaska, Alaska Gulf, Prince William Sound ER - TY - JOUR T1 - Evaluation of metric precision for a riparian forest survey AN - 18393536; 5372900 AB - This article evaluates the performance of a protocol to monitor riparian forests in western Oregon, United States based on the quality of the data obtained from a field survey. Precision is the criteria used to determine the quality of 19 field and 6 derived metrics. The derived metrics were calculated from the field data. The survey consisted of 110 riparian sites on public and private lands that were sampled during the summers of 1996 and 1997. In order to calculate metric precision, some of the field plots were re-measured. Metric precision was defined in terms of the coefficient of variability (CV) and standard deviation and then compared with a pre-defined data quality objective (DQO). A metric was considered precise if the CV met or exceeded the DQO. The geomorphology metrics were not precise while the forest stand inventory metrics and forest cover metrics, with some exceptions, were precise. The precision for many of the field and derived metrics compared favorably with the level of precision for similar metrics reported in the literature. Recommendations are made to improve the precision for some metrics and they include changing the way precision is calculated, re-defining the field protocol, or improving field training. JF - Environmental Monitoring and Assessment AU - Barker, J R AU - Bollman, M AU - Ringold, P L AU - Sackinger, J AU - Cline, S P AD - Dynamac Corporation, Corvallis, USA, jbarker@heart.cor.epa.gov Y1 - 2002/04// PY - 2002 DA - Apr 2002 SP - 51 EP - 72 PB - Kluwer Academic Publishers, [mailto:sales@wkap.nl], [URL:http://www.kluweronline.com/] VL - 75 IS - 1 SN - 0167-6369, 0167-6369 KW - Ecology Abstracts KW - D 04001:Methodology - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18393536?accountid=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=Geochemistry+-+Exploration%2C+Environment%2C+Analysis&rft.atitle=Elemental+mercury+in+copper%2C+silver+and+gold+ores%3B+an+unexpected+contribution+to+Lake+Superior+sediments+with+global+implications&rft.au=Kerfoot%2C+W+Charles%3BHarting%2C+S+L%3BRossmann%2C+Ronald%3BRobbins%2C+John+A&rft.aulast=Kerfoot&rft.aufirst=W&rft.date=2002-05-01&rft.volume=2%2C+Part+2&rft.issue=&rft.spage=185&rft.isbn=&rft.btitle=&rft.title=Geochemistry+-+Exploration%2C+Environment%2C+Analysis&rft.issn=14677873&rft_id=info:doi/10.1144%2F1467-787302-022 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Carbon and Nitrogen Isotopes in Suspended Particles and Colloids, Chesapeake and San Francisco Estuaries, U.S.A. AN - 1665489945; 5407850 AB - Chesapeake and San Francisco Bays, U.S.A., are both river dominated, temperate estuaries. The organic carbon and nitrogen isotopic compositions of the suspended particles ( greater than or equal to 0.4 mu m), however, show major differences for nitrogen and minor differences for carbon. In northern San Francisco Bay, the carbon isotope values averaged -26.2 plus or minus 0.2ppt delta super(13)C for suspended particles, and for Chesapeake Bay and the Potomac River, the average was -24.3 plus or minus 3.2ppt. The nitrogen isotope ratios ( delta super(15)N) of suspended particles in northern San Francisco Bay in late summer were +0.9 plus or minus 0.4ppt, probably reflecting a nitrogen component from agricultural runoff. The values for Chesapeake Bay, and its subestuary, the Potomac River averaged +7.7 plus or minus 3.1ppt, with the highest values occurring during summer when the primary source of nitrogen originated from remineralized organic material. Carbon and nitrogen isotope values for colloids ( less than or equal to 0.4 mu m) were 8.2 plus or minus 1.7 for nitrogen and -26.0 plus or minus 1.6 for carbon (n=17) throughout both estuaries and the Potomac river. Ultrafiltrates, collected after filtration and ultrafiltration, had delta super(15)N values of +7.3 plus or minus 0.3 and delta super(13)C values of -24.5 plus or minus 1.7. The similarity of isotopic values between suspended particles and colloids in winter samples suggested that these colloids were formed by desorption or dissociation from resuspended sediments and soils. Summer colloids in San Francisco Bay were uniformly heavier by 7ppt than suspended particles suggesting that the lighter isotope was selectively utilized by heterotrophs, leaving an isotopically heavy colloid residual. Copyright 2002 Elsevier Science Ltd. All rights reserved. JF - Estuarine, Coastal and Shelf Science AU - Sigleo, A C AU - Macko, SA AD - College of Oceanic and Atmospheric Sciences, Oregon State University, Hatfield Marine Science Center, Newport, Oregon, 97365, U.S.A., sigleo.anne@epa.gov Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 701 EP - 711 PB - Academic Press VL - 54 IS - 4 SN - 0272-7714, 0272-7714 KW - USA, California, San Francisco Estuary KW - USA, Chesapeake Estuary KW - Water Resources Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Sediment Transport KW - Rivers KW - Sediment chemistry KW - Suspended Sediments KW - Desorption KW - Colloids KW - Biogeochemical cycle KW - Estuaries KW - Brackish KW - Isotope Studies KW - Suspended particulate matter KW - Mineralization KW - ANW, USA, Chesapeake Bay KW - Oxygen isotopes KW - Filtration KW - Organic Matter KW - INE, USA, California, San Francisco Bay KW - Nitrogen isotopes KW - Nitrogen KW - Bays KW - Q2 09187:Geochemistry of sediments KW - O 1080:Multi-disciplinary Studies KW - SW 0890:Estuaries UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1665489945?accountid=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=Estuarine%2C+Coastal+and+Shelf+Science&rft.atitle=Carbon+and+Nitrogen+Isotopes+in+Suspended+Particles+and+Colloids%2C+Chesapeake+and+San+Francisco+Estuaries%2C+U.S.A.&rft.au=Sigleo%2C+A+C%3BMacko%2C+SA&rft.aulast=Sigleo&rft.aufirst=A&rft.date=2002-04-01&rft.volume=54&rft.issue=4&rft.spage=701&rft.isbn=&rft.btitle=&rft.title=Estuarine%2C+Coastal+and+Shelf+Science&rft.issn=02727714&rft_id=info:doi/10.1006%2Fecss.2001.0853 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Rivers; Oxygen isotopes; Sediment chemistry; Desorption; Colloids; Biogeochemical cycle; Estuaries; Nitrogen isotopes; Suspended particulate matter; Mineralization; Bays; Sediment Transport; Filtration; Suspended Sediments; Organic Matter; Isotope Studies; Nitrogen; INE, USA, California, San Francisco Bay; ANW, USA, Chesapeake Bay; Brackish DO - http://dx.doi.org/10.1006/ecss.2001.0853 ER - TY - JOUR T1 - Modeling How a Hurricane Barrier in New Bedford Harbor, Massachusetts, Affects the Hydrodynamics and Residence Times AN - 1665489491; 5409225 AB - Two-dimensional hydrodynamic and transport models were used to simulate tidal and subtidal circulation, residence times, and the longitudinal distributions of conservative constituents in New Bedford Harbor, Massachusetts, before and after a hurricane barrier was constructed. The results indicated that the barrier altered circulation patterns in its immediate vicinity and enhanced mixing up to 1.5 km to its north and south. Although the barrier did not significantly affect the longitudinal distributions of conservative constituents, it increased their average residence times in the harbor by up to 30% and their local residence times by 5% to 180%. JF - Estuaries AU - Abdelrhman, MA AD - U.S. Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA, abdelrhman.mohamed@epa.gov Y1 - 2002/04// PY - 2002 DA - Apr 2002 SP - 177 EP - 196 VL - 25 IS - 2 SN - 0160-8347, 0160-8347 KW - Modelling KW - USA, Massachusetts, New Bedford Harbor KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Oceanic Abstracts KW - Coastal engineering KW - Barriers KW - Hydrodynamics KW - Residence time KW - Tidal mixing KW - Storms KW - Mixing KW - Longitudinal dispersion KW - Coastal circulation models KW - Distribution (Mathematical) KW - Distribution KW - Harbour models KW - Coastal structures KW - Circulation KW - USA, Massachusetts, New Bedford KW - ANW, USA, Massachusetts, New Bedford, New Bedford Harbor KW - Harbours KW - Model Studies KW - Coastal zone management KW - Tidal barrier effects KW - Hurricanes KW - Shore protection KW - Water Circulation KW - Coastal oceanography KW - Harbors KW - Tidal constituents KW - AQ 00001:Water Resources and Supplies KW - O 6090:Instruments/Methods KW - Q2 09321:General KW - SW 0810:General KW - M2 551.468.6:Estuaries. Problems of estuarine circulation and mixing of fresh and salt water. Formation of brackish water. (551.468.6) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1665489491?accountid=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=Modeling+How+a+Hurricane+Barrier+in+New+Bedford+Harbor%2C+Massachusetts%2C+Affects+the+Hydrodynamics+and+Residence+Times&rft.au=Abdelrhman%2C+MA&rft.aulast=Abdelrhman&rft.aufirst=MA&rft.date=2002-04-01&rft.volume=25&rft.issue=2&rft.spage=177&rft.isbn=&rft.btitle=&rft.title=Estuaries&rft.issn=01608347&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Hurricanes; Coastal engineering; Shore protection; Barriers; Coastal structures; Harbour models; Residence time; Coastal oceanography; Tidal mixing; Tidal constituents; Coastal zone management; Longitudinal dispersion; Coastal circulation models; Tidal barrier effects; Hydrodynamics; Distribution (Mathematical); Circulation; Harbours; Mixing; Storms; Distribution; Water Circulation; Harbors; Model Studies; USA, Massachusetts, New Bedford; ANW, USA, Massachusetts, New Bedford, New Bedford Harbor ER - TY - JOUR T1 - An interdisciplinary approach to valuing water from brush control AN - 1665485560; 5388062 AB - An analytic methodology utilizing models from three disciplines is developed to assess the viability of brush control for water yield in the Frio River basin, Texas. Ecological, hydrologic, and economic models are used to portray changes in forage production and water supply resulting from brush control, and to value supplemental water produced through brush control. Site-specific biophysical characteristics are used to simulate water yields from brush control across the watershed. Economic benefits from increased animal production for ranchers undertaking brush control are assessed. Benefits to Corpus Christi residential water consumers from ranchers' brush control activities are evaluated using the change in consumer surplus resulting from supplemental water produced through brush control. Results indicate an increase in water yield with brush control on 35 percent of the land area in the basin. However, the cost of brush control is more than the increase in returns it fosters on most range sites. Consumer surplus change for Corpus Christi residents over 25 years is zero under baseline conditions, implying subsidies for brush control in the Frio basin are not worthwhile at this time. JF - Journal of the American Water Resources Association AU - Lemberg, B AU - Mjelde, J W AU - Conner, J R AU - Griffin, R C AU - Rosenthal, W D AU - Stuth, J W AD - U.S. Environmental Protection Agency, 26 West Martin Luther King Drive, MS 498, Cincinnati, Ohio 45268, USA, Lemberg.Beth@epa.gov Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 409 VL - 38 IS - 2 SN - 1093-474X, 1093-474X KW - USA, Texas, Corpus Christi, Frio R. KW - Aqualine Abstracts; Water Resources Abstracts KW - Water yields KW - Case study KW - Value KW - Water Yield KW - Case Studies KW - Watershed Management KW - Cost-benefit Analysis KW - Range Management KW - Model Studies KW - Livestock KW - Livestock (see also Individual animals) KW - USA, Texas, Corpus Christi KW - Economic Evaluation KW - Water management KW - Cost effectiveness KW - Brush Control KW - AQ 00001:Water Resources and Supplies KW - SW 4020:Evaluation process UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1665485560?accountid=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=An+interdisciplinary+approach+to+valuing+water+from+brush+control&rft.au=Lemberg%2C+B%3BMjelde%2C+J+W%3BConner%2C+J+R%3BGriffin%2C+R+C%3BRosenthal%2C+W+D%3BStuth%2C+J+W&rft.aulast=Lemberg&rft.aufirst=B&rft.date=2002-04-01&rft.volume=38&rft.issue=2&rft.spage=409&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 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Water yields; Case study; Water management; Cost effectiveness; Livestock (see also Individual animals); Economic Evaluation; Value; Water Yield; Case Studies; Watershed Management; Brush Control; Cost-benefit Analysis; Livestock; Model Studies; Range Management; USA, Texas, Corpus Christi ER - TY - JOUR T1 - New federal support for priority watershed management needs AN - 16134398; 5388075 AB - In the past five years, USDA and EPA programs became major players in implementing watershed programs. The 1996 Farm Bill for the first time required that USDA assistance for farmers address priority environmental needs on a site-specific, or watershed, basis. USDA involves farmers and other players in locally run watershed programs and focuses cost share and incentive payments on nutrient planning, riparian protection, and other practices prioritized to most efficiently achieve watershed goals. As a result, USDA has become a funding source for environmental initiatives targeted to watersheds, as well as a technical resource that attempts to support more efficient use of federal and state environmental expenditures. Analysis identifies institutional and technical barriers to targeting the very limited, new assistance and suggests how those barriers are being addressed by some innovative programs. Since Total Maximum Daily Load (TMDL) and other state run programs face many of the same challenges of ranking watersheds, setting goals, and finding cost effective remedies, this paper identifies a very close fit between the new federal programs and other watershed programs. JF - Journal of the American Water Resources Association AU - Ogg, C W AU - Keith, G A AD - U.S. Environmental Protection Agency, U.S. EPA Office of Policy, 401 M St. SW, Washington, D.C. 20460, USA, ogg.clay@epa.gov Y1 - 2002/04// PY - 2002 DA - Apr 2002 SP - 577 VL - 38 IS - 2 SN - 1093-474X, 1093-474X KW - USA KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Low cost) KW - Barriers KW - Financing KW - Water resources KW - Watershed Management KW - Economic Aspects KW - Costs (see also Economics KW - Freshwater KW - Watersheds KW - Environmental protection agencies KW - Expenditures KW - Administrative Agencies KW - Law (see also Legislation) KW - Water management KW - Catchment areas KW - Institutional Constraints KW - Economics KW - Government Supports KW - Priorities KW - Environmental Policy KW - Regional planning KW - River basin management KW - National planning KW - AQ 00001:Water Resources and Supplies KW - SW 4030:Cost allocation, cost sharing, pricing KW - Q2 09184:Composition of water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16134398?accountid=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=New+federal+support+for+priority+watershed+management+needs&rft.au=Ogg%2C+C+W%3BKeith%2C+G+A&rft.aulast=Ogg&rft.aufirst=C&rft.date=2002-04-01&rft.volume=38&rft.issue=2&rft.spage=577&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 - 2002-10-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Barriers; Financing; Water resources; Regional planning; Watersheds; River basin management; National planning; Low cost); Law (see also Legislation); Catchment areas; Water management; Economics; Costs (see also Economics; Environmental protection agencies; Administrative Agencies; Expenditures; Institutional Constraints; Government Supports; Environmental Policy; Priorities; Watershed Management; Economic Aspects; Freshwater ER - TY - JOUR T1 - A Novel S-Adenosyl-L-methionine:Arsenic(III) Methyltransferase from Rat Liver Cytosol AN - 18366902; 5342786 AB - S-Adenosyl-L-methionine (AdoMet):arsenic(III) methyltransferase, purified from liver cytosol of adult male Fischer 344 rats, catalyzes transfer of a methyl group from AdoMet to trivalent arsenicals producing methylated and dimethylated arsenicals. The kinetics of production of methylated arsenicals in reaction mixtures containing enzyme, AdoMet, dithiothreitol, glutathione (GSH), and arsenite are consistent with a scheme in which monomethylated arsenical produced from arsenite is the substrate for a second methylation reaction that yields dimethylated arsenical. The mRNA for this protein predicts a 369-amino acid residue protein (molecular mass 41056) that contains common methyltransferase sequence motifs. Its sequence is similar to Cyt19, a putative methyltransferase, expressed in human and mouse tissues. Reverse transcription-polymerase chain reaction detects S-adenosyl-L-methionine:arsenic(III) methyltransferase mRNA in rat tissues and in HepG2 cells, a human cell line that methylates arsenite and methylarsonous acid. S-Adenosyl-L-methionine:arsenic(III) methyltransferase mRNA is not detected in UROtsa cells, an immortalized human urothelial cell line that does not methylate arsenite. Because methylation of arsenic is a critical feature of its metabolism, characterization of this enzyme will improve our understanding of this metalloid's metabolism and its actions as a toxin and a carcinogen. JF - Journal of Biological Chemistry AU - Lin, S AU - Shi, Q AU - Nix, F B AU - Styblo, M AU - Beck, MA AU - Herbin-Davis, K M AU - Hall, L L AU - Simeonsson, J B AU - Thomas, D J AD - Curriculum in Toxicology, the Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA, thomas.david@epa.gov Y1 - 2002/03/29/ PY - 2002 DA - 2002 Mar 29 SP - 10795 EP - 10803 VL - 277 IS - 13 SN - 0021-9258, 0021-9258 KW - rats KW - Toxicology Abstracts KW - X 24240:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18366902?accountid=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+Biological+Chemistry&rft.atitle=A+Novel+S-Adenosyl-L-methionine%3AArsenic%28III%29+Methyltransferase+from+Rat+Liver+Cytosol&rft.au=Lin%2C+S%3BShi%2C+Q%3BNix%2C+F+B%3BStyblo%2C+M%3BBeck%2C+MA%3BHerbin-Davis%2C+K+M%3BHall%2C+L+L%3BSimeonsson%2C+J+B%3BThomas%2C+D+J&rft.aulast=Lin&rft.aufirst=S&rft.date=2002-03-29&rft.volume=277&rft.issue=13&rft.spage=10795&rft.isbn=&rft.btitle=&rft.title=Journal+of+Biological+Chemistry&rft.issn=00219258&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 - The genotoxicity of priority polycyclic aromatic hydrocarbons in complex mixtures. AN - 71535006; 11909757 AB - Risk assessment of complex environmental samples suffers from difficulty in identifying toxic components, inadequacy of available toxicity data, and a paucity of knowledge about the behavior of geno(toxic) substances in complex mixtures. Lack of information about the behavior of toxic substances in complex mixtures is often avoided by assuming that the toxicity of a mixture is simply the sum of the expected effects from each mixture component, i.e. no synergistic or antagonistic interactions. Although this assumption is supported by research investigating non-genotoxic end-points, the literature describing the behavior of genotoxic substances in complex mixtures is sparse and, occasionally, contradictory. In this study, the results of polycyclic aromatic hydrocarbon (PAH) analyses on freshwater bivalves were used to prepare realistic mixtures containing up to 16 PAHs. The SOS genotoxicity of the mixtures and each component were then assessed in an effort to evaluate the additivity of PAH genotoxicity. At nominal PAH concentrations above 1 microg/ml, observed genotoxic responses were far lower than those predicted under the assumption of additivity. At nominal concentrations below 0.75 microg/ml, differences are smaller and occasionally negligible, indicating that the genotoxicity of unsubstituted homocyclic PAHs is additive or slightly less than additive. Other researchers who have investigated the mutagenicity, carcinogenicity, and DNA binding activity of mixtures containing unsubstituted homocyclic PAHs have also reported additive effects. Therefore, the mutagenic risk posed by simple, well-characterized mixtures of priority PAHs can reasonably be estimated as the sum of the risks posed by the mixture components. Current data indicate that less-than-additive effects likely result from saturation of metabolic pathways needed to activate mutagenic PAHs. JF - Mutation research AU - White, Paul A AD - NRC Research Associate, Atlantic Ecology Division, United States Environmental Protection Agency, 27 Tarzwell Drive, Narragansett, RI 02882, USA. paul_white@hc-sc.gc.ca Y1 - 2002/03/25/ PY - 2002 DA - 2002 Mar 25 SP - 85 EP - 98 VL - 515 IS - 1-2 SN - 0027-5107, 0027-5107 KW - Carcinogens KW - 0 KW - Environmental Pollutants KW - Polycyclic Aromatic Hydrocarbons KW - Index Medicus KW - Environmental Monitoring KW - Animals KW - Mutagenicity Tests KW - Environmental Pollutants -- classification KW - Risk Factors KW - Humans KW - Environmental Exposure KW - Biodegradation, Environmental KW - Polycyclic Aromatic Hydrocarbons -- toxicity KW - Carcinogens -- toxicity KW - SOS Response (Genetics) -- drug effects KW - DNA Damage -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71535006?accountid=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=The+genotoxicity+of+priority+polycyclic+aromatic+hydrocarbons+in+complex+mixtures.&rft.au=White%2C+Paul+A&rft.aulast=White&rft.aufirst=Paul&rft.date=2002-03-25&rft.volume=515&rft.issue=1-2&rft.spage=85&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 - 2002-05-09 N1 - Date created - 2002-03-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - CPAPER T1 - Nutrient delivery and bioaugmentation processes using membranes and Gel Beads for in-situ bioremediation of contaminated sediments AN - 39606937; 3667222 AU - Tabak, H AU - Govind, R Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39606937?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Nutrient+delivery+and+bioaugmentation+processes+using+membranes+and+Gel+Beads+for+in-situ+bioremediation+of+contaminated+sediments&rft.au=Tabak%2C+H%3BGovind%2C+R&rft.aulast=Tabak&rft.aufirst=H&rft.date=2002-03-15&rft.volume=&rft.issue=&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 Environmental Health Sciences, 150 Fearing Street, Amherst, MA 01002, USA; phone: 413-549-5170; fax: 413-549-0579; email: info@aehs.com; URL: www.aehs.com N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Reducing uncertainties to agricultural greenhouse gas inventories through improved inventory methodologies AN - 39606129; 3663419 AU - Mangino, J AU - Wirth, T Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39606129?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Reducing+uncertainties+to+agricultural+greenhouse+gas+inventories+through+improved+inventory+methodologies&rft.au=Mangino%2C+J%3BWirth%2C+T&rft.aulast=Mangino&rft.aufirst=J&rft.date=2002-03-15&rft.volume=47&rft.issue=3&rft.spage=189&rft.isbn=&rft.btitle=&rft.title=Journal+of+Pharmacological+and+Toxicological+Methods&rft.issn=10568719&rft_id=info:doi/10.1016%2FS1056-8719%2803%2900004-2 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Netherlands Association of Environmental Professionals, P.O. Box 2195, NL-5202 CD DEN BOSCH, The Netherlands; fax: 31-73-621 6985; URL: www.vvm.to/ncgg-3.htm. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Marginal abatement costs for high GWP gases AN - 39605908; 3663373 AU - Upson Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39605908?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Marginal+abatement+costs+for+high+GWP+gases&rft.au=Upson&rft.aulast=Upson&rft.aufirst=&rft.date=2002-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Netherlands Association of Environmental Professionals, P.O. Box 2195, NL-5202 CD DEN BOSCH, The Netherlands; fax: 31-73-621 6985; URL: www.vvm.to/ncgg-3.htm N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - U.S. EPA perspective on source water protection AN - 39574834; 3665430 AU - McCormack, K B Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39574834?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+perspective+on+source+water+protection&rft.au=McCormack%2C+K+B&rft.aulast=McCormack&rft.aufirst=K&rft.date=2002-03-15&rft.volume=&rft.issue=&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 Ground Water Assoc., 601 Dempsey Road, Westerville, OH 43081-8978, USA; URL: www.ngwa.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Assessment of global methane emission estimates AN - 39545592; 3663357 AU - Irving, W N AU - Scheehle, E AU - Kruger, D Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39545592?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+global+methane+emission+estimates&rft.au=Irving%2C+W+N%3BScheehle%2C+E%3BKruger%2C+D&rft.aulast=Irving&rft.aufirst=W&rft.date=2002-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Netherlands Association of Environmental Professionals, P.O. Box 2195, NL-5202 CD DEN BOSCH, The Netherlands; fax: 31-73-621 6985; URL: www.vvm.to/ncgg-3.htm N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Global industry initiative for reducing semiconductor PFC emissions AN - 39525613; 3663384 AU - Bartos, S AU - Fraust, C AU - Hayakawa, Y AU - Klerks, L AU - Rand, S Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39525613?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Global+industry+initiative+for+reducing+semiconductor+PFC+emissions&rft.au=Bartos%2C+S%3BFraust%2C+C%3BHayakawa%2C+Y%3BKlerks%2C+L%3BRand%2C+S&rft.aulast=Bartos&rft.aufirst=S&rft.date=2002-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Netherlands Association of Environmental Professionals, P.O. Box 2195, NL-5202 CD DEN BOSCH, The Netherlands; fax: 31-73-621 6985; URL: www.vvm.to/ncgg-3.htm N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Progress towards climate friendly magnesium production and casting AN - 39524415; 3668938 AU - Bartos, S C Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39524415?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+towards+climate+friendly+magnesium+production+and+casting&rft.au=Bartos%2C+S+C&rft.aulast=Bartos&rft.aufirst=S&rft.date=2002-03-15&rft.volume=&rft.issue=&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 Minerals, Metals & Materials Society, 184 Thorn Hill Road, Warrendale, Pennsylvania 15086, USA; phone: 724-776-9000; fax: 724-776-3770; URL: www.tms.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Indirect emissions from CH sub(4), CO and NMVOCs: The forgotten carbon in national greenhouse gas inventories AN - 39511004; 3663414 AU - Gillenwater, M Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39511004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Indirect+emissions+from+CH+sub%284%29%2C+CO+and+NMVOCs%3A+The+forgotten+carbon+in+national+greenhouse+gas+inventories&rft.au=Gillenwater%2C+M&rft.aulast=Gillenwater&rft.aufirst=M&rft.date=2002-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Netherlands Association of Environmental Professionals, P.O. Box 2195, NL-5202 CD DEN BOSCH, The Netherlands; fax: 31-73-621 6985; URL: www.vvm.to/ncgg-3.htm. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Estimating SF sub(6) emissions from electrical equipment and magnesium production and processing in the U.S. AN - 39510821; 3663378 AU - Schaefer, DO AU - Bartos, S AU - Kreider, A Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39510821?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+SF+sub%286%29+emissions+from+electrical+equipment+and+magnesium+production+and+processing+in+the+U.S.&rft.au=Schaefer%2C+DO%3BBartos%2C+S%3BKreider%2C+A&rft.aulast=Schaefer&rft.aufirst=DO&rft.date=2002-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Netherlands Association of Environmental Professionals, P.O. Box 2195, NL-5202 CD DEN BOSCH, The Netherlands; fax: 31-73-621 6985; URL: www.vvm.to/ncgg-3.htm N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Estimating technological change in methane mitigation in the US and internationally to 2050 AN - 39497048; 3663372 AU - Delhotal, K C AU - De La Chesnaye, F Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39497048?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+technological+change+in+methane+mitigation+in+the+US+and+internationally+to+2050&rft.au=Delhotal%2C+K+C%3BDe+La+Chesnaye%2C+F&rft.aulast=Delhotal&rft.aufirst=K&rft.date=2002-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Netherlands Association of Environmental Professionals, P.O. Box 2195, NL-5202 CD DEN BOSCH, The Netherlands; fax: 31-73-621 6985; URL: www.vvm.to/ncgg-3.htm N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Perspectives on decreases in nitrogen emissions - Current efforts and future directions AN - 39491105; 3660637 AU - Brenner, R Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39491105?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Perspectives+on+decreases+in+nitrogen+emissions+-+Current+efforts+and+future+directions&rft.au=Brenner%2C+R&rft.aulast=Brenner&rft.aufirst=R&rft.date=2002-03-15&rft.volume=&rft.issue=&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 Ecological Society of America, 1707 H Street, NW, Suite 400, Washington, DC 20006, USA; phone: 202-833-8773; fax: 202-833-8775; email: N2001@esa.org; URL: education.esa.org/n2001 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Potential error associated with using chemical and equipment sales data to estimate greenhouse gas emissions from long-lived, pressurized equipment AN - 39483329; 3663423 AU - Schaefer, DO Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39483329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Potential+error+associated+with+using+chemical+and+equipment+sales+data+to+estimate+greenhouse+gas+emissions+from+long-lived%2C+pressurized+equipment&rft.au=Schaefer%2C+DO&rft.aulast=Schaefer&rft.aufirst=DO&rft.date=2002-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Netherlands Association of Environmental Professionals, P.O. Box 2195, NL-5202 CD DEN BOSCH, The Netherlands; fax: 31-73-621 6985; URL: www.vvm.to/ncgg-3.htm. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hyde park landfill: A case history of DNAPL migration, delineation, and containment in fractured dolomite AN - 39482664; 3665482 AU - Sosa, G M AU - Derby, M P Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39482664?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hyde+park+landfill%3A+A+case+history+of+DNAPL+migration%2C+delineation%2C+and+containment+in+fractured+dolomite&rft.au=Sosa%2C+G+M%3BDerby%2C+M+P&rft.aulast=Sosa&rft.aufirst=G&rft.date=2002-03-15&rft.volume=&rft.issue=&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 Ground Water Assoc., 601 Dempsey Road, Westerville, OH 43081-8978, USA; URL: www.ngwa.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Development of the Neuse River Estuary nutrient TMDL AN - 39468655; 3660393 AU - Wool, T Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 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/39468655?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+Neuse+River+Estuary+nutrient+TMDL&rft.au=Wool%2C+T&rft.aulast=Wool&rft.aufirst=T&rft.date=2002-03-15&rft.volume=&rft.issue=&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 Rhode Island, Graduate School of Oceanography, Narragansett Bay Campus, Narragansett, RI 02882, USA; phone: 727-367-2771; fax: 727-367-8082; URL: www.oce.uri.edu/ecm7 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Stabilizing global methane emissions: Assessing the feasibility of Dr James Hansen's "alternative scenario" AN - 39461050; 3663366 AU - Kruger, D AU - DelaChesnaye, F AU - Scheehle, E Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39461050?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&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+the+Air+%26+Waste+Management+Association&rft.atitle=Defining+the+Photochemical+Contribution+to+Particulate+Matter+in+Urban+Areas+Using+Time-Series+Analysis&rft.au=Rizzo%2C+M%3BScheff%2C+P%3BRamakrishnan%2C+V&rft.aulast=Rizzo&rft.aufirst=M&rft.date=2002-05-01&rft.volume=52&rft.issue=5&rft.spage=593&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association&rft.issn=10962247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Netherlands Association of Environmental Professionals, P.O. Box 2195, NL-5202 CD DEN BOSCH, The Netherlands; fax: 31-73-621 6985; URL: www.vvm.to/ncgg-3.htm N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - International cooperation to reduce magnesium industry SF sub(6) emissions AN - 39461010; 3663438 AU - Bartos, S AU - Hillis, J AU - Clow, B Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39461010?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+cooperation+to+reduce+magnesium+industry+SF+sub%286%29+emissions&rft.au=Bartos%2C+S%3BHillis%2C+J%3BClow%2C+B&rft.aulast=Bartos&rft.aufirst=S&rft.date=2002-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Netherlands Association of Environmental Professionals, P.O. Box 2195, NL-5202 CD DEN BOSCH, The Netherlands; fax: 31-73-621 6985; URL: www.vvm.to/ncgg-3.htm. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Estimated Chesapeake Bay water quality and living resource response to different nutrient and sediment loads AN - 39453781; 3660457 AU - Linker, L Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 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/39453781?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Estimated+Chesapeake+Bay+water+quality+and+living+resource+response+to+different+nutrient+and+sediment+loads&rft.au=Linker%2C+L&rft.aulast=Linker&rft.aufirst=L&rft.date=2002-03-15&rft.volume=&rft.issue=&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 Rhode Island, Graduate School of Oceanography, Narragansett Bay Campus, Narragansett, RI 02882, USA; phone: 727-367-2771; fax: 727-367-8082; URL: www.oce.uri.edu/ecm7 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Characterizing and managing ground-water resources in fractured-rock hydrogeologic settings AN - 39439854; 3665428 AU - Wireman, M Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39439854?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Characterizing+and+managing+ground-water+resources+in+fractured-rock+hydrogeologic+settings&rft.au=Wireman%2C+M&rft.aulast=Wireman&rft.aufirst=M&rft.date=2002-03-15&rft.volume=&rft.issue=&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 Ground Water Assoc., 601 Dempsey Road, Westerville, OH 43081-8978, USA; URL: www.ngwa.org N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Cytokine Profiling for Chemical Sensitizers: Application of the Ribonuclease Protection Assay and Effect of Dose AN - 18312393; 5352926 AB - Exposure to chemicals in domestic and occupational settings may contribute to increases in asthma and allergy. Airway hypersensitivity (AHS) is T helper-2 (Th2) cell associated, whereas contact hypersensitivity (CHS) is T helper-1 (Th1) cell associated. The distinct cytokine profiles produced by these cells may provide a means of distinguishing respiratory sensitizers from contact sensitizers. In this study, female BALB/c mice were exposed twice on the flanks and three times on the ears using the airway sensitizer trimellitic anhydride (TMA) or the contact sensitizer dinitrochlorobenzene (DNCB). At various times following exposure, total mRNA was extracted from draining lymph node cells and cytokine mRNA profiles analyzed using a multiprobe ribonuclease protection assay (RPA). The Th2 cytokines IL4, IL10, and IL13 were significantly increased in response to TMA compared to DNCB, with optimal detection occurring 14 days following initial exposure. To determine its effect, dose was varied in flank exposures, ear exposures, or both simultaneously. When dose was varied during flank exposures only, TMA induced higher levels of Th2 cytokines than DNCB at all doses tested. DNCB did not induce Th1 cytokines at any dose tested. Variation of TMA dose during both exposures similarly induced Th2 cytokines. Dose only appeared to be a factor when TMA concentration was varied during the ear exposures alone. Thus, these studies suggest that quantitative differences in Th2 responses between TMA and DNCB may be demonstrated over a wide range of doses and these differences may be detected by RPA following dermal exposure to these sensitizers. [copy ]2002 Elsevier Science (USA). JF - Toxicology and Applied Pharmacology AU - Plitnick, L M AU - Loveless, SE AU - Ladics, G S AU - Holsapple, M P AU - Selgrade, MJ AU - Sailstad, D M AU - Smialowicz, R J AD - University of North Carolina, Curriculum in Toxicology, Chapel Hill, North Carolina, plitnick.lisa@epa.gov Y1 - 2002/03/15/ PY - 2002 DA - 2002 Mar 15 SP - 145 EP - 154 PB - Academic Press VL - 179 IS - 3 SN - 0041-008X, 0041-008X KW - mice KW - dinitrochlorobenzene KW - ribonuclease KW - trimellitic anhydride KW - Toxicology Abstracts KW - Contact dermatitis KW - Skin KW - Sensitization KW - Interleukins KW - Cytokines KW - Respiratory tract KW - X 24155:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18312393?accountid=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=Cytokine+Profiling+for+Chemical+Sensitizers%3A+Application+of+the+Ribonuclease+Protection+Assay+and+Effect+of+Dose&rft.au=Plitnick%2C+L+M%3BLoveless%2C+SE%3BLadics%2C+G+S%3BHolsapple%2C+M+P%3BSelgrade%2C+MJ%3BSailstad%2C+D+M%3BSmialowicz%2C+R+J&rft.aulast=Plitnick&rft.aufirst=L&rft.date=2002-03-15&rft.volume=179&rft.issue=3&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+Applied+Pharmacology&rft.issn=0041008X&rft_id=info:doi/10.1006%2Ftaap.2002.9370 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Skin; Sensitization; Cytokines; Contact dermatitis; Respiratory tract; Interleukins DO - http://dx.doi.org/10.1006/taap.2002.9370 ER - TY - JOUR T1 - Rat tail skin temperature monitored noninvasively by radiotelemetry: characterization by examination of vasomotor responses to thermomodulatory agents. AN - 72725680; 12459150 AB - Measurement of tail skin temperature (T(sk)) of the rat can provide important information on mechanisms pertaining to physiology, pharmacology, and toxicology. T(sk) is largely under control of peripheral vascular tone, which is also sensitive to most experimental manipulations such as handling and restraint. Hence, it is extremely difficult to acquire long-term measurements of T(sk) that are free of artifacts from experimental manipulation. The purpose of this study is to demonstrate the utility of a radiotelemetric probe to provide continuous, long-term measurements of T(sk) in undisturbed rats. A telemetry probe is placed on the base of the tail and secured with a protective guard to prevent the rat from chewing on the probe. T(sk) is continuously monitored with standard radiotelemetric software and computer technology. Core temperature (T(c)) is monitored in duplicate sets of rats at the same time but the current system does not allow for simultaneous measurement of T(sk) and T(c) from the same animal. Rats were subjected to a variety of experimental manipulations to demonstrate the utility of the probe. A marked increase in T(sk) was seen during the transition from light to dark phase, reflecting an increase in heat loss to lower T(c); a decrease in T(sk) during the development of endotoxin-induced fever, reflecting a reduction in heat loss to facilitate an elevation in T(c); an increase in T(sk) following exposure to the organophosphate insecticide chlorpyrifos, reflecting an increase in heat loss to facilitate a hypothermia response; and a direct effect of increasing ambient temperature on T(sk). The probe is relatively inexpensive and is used with no surgery and provides long-term measurement (e.g., >24 h) of T(sk) in unrestrained rats. JF - Journal of pharmacological and toxicological methods AU - Gordon, Christopher J AU - Puckett, Earl AU - Padnos, Beth AD - National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA. gordon.christopher@epa.gov PY - 2002 SP - 107 EP - 114 VL - 47 IS - 2 SN - 1056-8719, 1056-8719 KW - Insecticides KW - 0 KW - Lipopolysaccharides KW - Chlorpyrifos KW - JCS58I644W KW - Index Medicus KW - Rats KW - Environment KW - Animals KW - Skin -- drug effects KW - Lipopolysaccharides -- pharmacology KW - Chlorpyrifos -- pharmacology KW - Time Factors KW - Skin -- blood supply KW - Insecticides -- pharmacology KW - Tail -- physiology KW - Tail -- drug effects KW - Skin Physiological Phenomena KW - Body Temperature -- drug effects KW - Telemetry -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72725680?accountid=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+pharmacological+and+toxicological+methods&rft.atitle=Rat+tail+skin+temperature+monitored+noninvasively+by+radiotelemetry%3A+characterization+by+examination+of+vasomotor+responses+to+thermomodulatory+agents.&rft.au=Gordon%2C+Christopher+J%3BPuckett%2C+Earl%3BPadnos%2C+Beth&rft.aulast=Gordon&rft.aufirst=Christopher&rft.date=2002-03-01&rft.volume=47&rft.issue=2&rft.spage=107&rft.isbn=&rft.btitle=&rft.title=Journal+of+pharmacological+and+toxicological+methods&rft.issn=10568719&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-06-19 N1 - Date created - 2002-12-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - AI and SAR approaches for predicting chemical carcinogenicity: survey and status report. AN - 71838595; 12074379 AB - A wide variety of artificial intelligence (AI) and structure-activity relationship (SAR) approaches have been applied to tackling the general problem of predicting rodent chemical carcinogenicity. Given the diversity of chemical structures and mechanisms relative to this endpoint, the shared challenge of these approaches is to accurately delineate classes of active chemicals representing distinct biological and chemical mechanism domains, and within those classes determine the structural features and properties responsible for modulating activity. In the following discussion, we present a survey of AI and SAR approaches that have been applied to the prediction of rodent carcinogenicity, and discuss these in general terms and in the context of the results of two organized prediction exercises (PTE-1 and PTE-2) sponsored by the US National Cancer Institute/National Toxicology Program. Most models participating in these exercises were successful in identifying major structural-alerting classes of active carcinogens, but failed in modeling the more subtle modifiers to activity within those classes. In addition, methods that incorporated mechanism-based reasoning or biological data along with structural information outperformed models limited to structural information exclusively. Finally, a few recent carcinogenicity-modeling efforts are presented illustrating progress in tackling some aspects of the carcinogenicity prediction problem. The first example, a QSAR model for predicting carcinogenic potency of aromatic amines, illustrates that success is possible within well-represented classes of carcinogens. From the second example, a newly developed FDA/OTR MultiCASE model for predicting the carcinogenicity of pharmaceuticals, we conclude that the definitions of biological activity and nature of chemicals in the training set are important determinants of the predictive success and specificity/sensitivity characteristics of a derived model. JF - SAR and QSAR in environmental research AU - Richardt, A M AU - Benigni, R AD - U.S. Environmental Protection Agency, Environmental Carcinogenesis Division, National Health and Environmental Effects Research Laboratories, Research Triangle Park, NC 27711, USA. richard.ann@epa.gov Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 1 EP - 19 VL - 13 IS - 1 SN - 1062-936X, 1062-936X KW - Xenobiotics KW - 0 KW - Index Medicus KW - Rats KW - Animals KW - Endpoint Determination KW - Mice KW - Forecasting KW - Structure-Activity Relationship KW - Neoplasms -- chemically induced KW - Xenobiotics -- adverse effects KW - Models, Chemical KW - Cell Transformation, Neoplastic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71838595?accountid=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=SAR+and+QSAR+in+environmental+research&rft.atitle=AI+and+SAR+approaches+for+predicting+chemical+carcinogenicity%3A+survey+and+status+report.&rft.au=Richardt%2C+A+M%3BBenigni%2C+R&rft.aulast=Richardt&rft.aufirst=A&rft.date=2002-03-01&rft.volume=13&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=SAR+and+QSAR+in+environmental+research&rft.issn=1062936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-10-16 N1 - Date created - 2002-06-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Reactivity profiles of ligands of mammalian retinoic acid receptors: a preliminary COREPA analysis. AN - 71837321; 12071662 AB - Retinoic acid and associated derivatives comprise a class of endogenous hormones that bind to and activate different families of retinoic acid receptors (RARs, RXRs), and control many aspects of vertebrate development. Identification of potential RAR and RXR ligands is of interest both from a pharmaceutical and toxicological perspective. The recently developed COREPA (COmmon REactivity PAttern) algorithm was used to establish reactivity profiles for a limited data set of retinoid receptor ligands in terms of activation of three RARs (alpha, beta, gamma) and an RXR (alpha). Conformational analysis of a training set of retinoids and related analogues in terms of thermodynamic stability of conformers and rotational barriers showed that these chemicals tend to be quite flexible. This flexibility, and the observation that relatively small energy differences between conformers can result in significant variations in electronic structure, highlighted the necessity of considering all energetically reasonable conformers in defining common reactivity profiles. The derived reactivity patterns for three different subclasses of the RAR (alpha, beta, gamma) were similar in terms of their global electrophilicity (nucleophilicity) and steric parameters. However, the profile of active chemicals with respect to interaction with the RXR-alpha differed qualitatively from that of the RARs. Variations in reactivity profiles for the RAR versus RXR families would be consistent with established differences in their affinity for endogenous retinoids, likely reflecting functional differences in the receptors. JF - SAR and QSAR in environmental research AU - Ankley, G T AU - Mekenyan, O G AU - Kamenska, V B AU - Schmieder, P K AU - Bradbury, S P AD - US Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, Duluth, MN 55804, USA. ankley.gerald@epa.gov Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 365 EP - 377 VL - 13 IS - 2 SN - 1062-936X, 1062-936X KW - Ligands KW - 0 KW - Receptors, Retinoic Acid KW - Tretinoin KW - 5688UTC01R KW - Index Medicus KW - Tretinoin -- pharmacology KW - Animals KW - Mammals KW - Forecasting KW - Structure-Activity Relationship KW - Receptors, Retinoic Acid -- physiology KW - Algorithms KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71837321?accountid=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=SAR+and+QSAR+in+environmental+research&rft.atitle=Reactivity+profiles+of+ligands+of+mammalian+retinoic+acid+receptors%3A+a+preliminary+COREPA+analysis.&rft.au=Ankley%2C+G+T%3BMekenyan%2C+O+G%3BKamenska%2C+V+B%3BSchmieder%2C+P+K%3BBradbury%2C+S+P&rft.aulast=Ankley&rft.aufirst=G&rft.date=2002-03-01&rft.volume=13&rft.issue=2&rft.spage=365&rft.isbn=&rft.btitle=&rft.title=SAR+and+QSAR+in+environmental+research&rft.issn=1062936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-09-10 N1 - Date created - 2002-06-19 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Attenuation of methyl tert-butyl ether in water using sunlight and a photocatalyst. AN - 71777266; 12043968 AB - The use of methyl tert-butyl ether (MTBE) as a gasoline additive has resulted in increasing pollution of groundwater. Most of the conventional treatment technologies are inefficient or costly when the initial concentration of MTBE is low (< 200 microg/L). To find an ecology friendly and inexpensive method for MTBE remediation, we used solar radiation with titanium dioxide (TiO2) as a photocatalyst. For synthetic samples, almost complete degradation (99+%) of MTBE was observed at the end of 5-hour test run with 0.05 g/L of slurry TiO2. Intermediate products detected were tertiary butyl formate, tertiary butyl alcohol, and trace amounts of acetone. Studies conducted using contaminated groundwater samples with TiO2 and sunlight showed that aromatic organic species benzene, toluene, ethylbenzene, and xylenes (BTEX) were degraded up to a factor of 10 times faster than MTBE. However, dissolved metals (Fe2+) and chloride ions in contaminated waters decreased the photo-activity of TiO2 for the degradation of MTBE. Reducing the pH of the groundwater samples increased the MTBE degradation rate threefold. Photocatalysis accelerates the solar degradation of MTBE and reduces its half-life by more than 3 orders of magnitude. The study indicated that solar degradation is a low-cost and effective alternative to attenuate MTBE in drinking water supplies. JF - Water environment research : a research publication of the Water Environment Federation AU - Sahle-Demessie, E AU - Enriquez, J AU - Gupta, G AD - U.S. Environmental Protection Agency, National Risk Management Research Laboratory, Cincinnati, Ohio 45269, USA. Sahle-Demessie.Endalkachew@epa.gov PY - 2002 SP - 122 EP - 130 VL - 74 IS - 2 SN - 1061-4303, 1061-4303 KW - Carcinogens KW - 0 KW - Coloring Agents KW - Methyl Ethers KW - titanium dioxide KW - 15FIX9V2JP KW - methyl tert-butyl ether KW - 29I4YB3S89 KW - Titanium KW - D1JT611TNE KW - Index Medicus KW - Photochemistry KW - Titanium -- chemistry KW - Half-Life KW - Sunlight KW - Coloring Agents -- chemistry KW - Water Pollution -- prevention & control KW - Catalysis KW - Carcinogens -- chemistry KW - Water Purification -- methods KW - Methyl Ethers -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71777266?accountid=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=Water+environment+research+%3A+a+research+publication+of+the+Water+Environment+Federation&rft.atitle=Attenuation+of+methyl+tert-butyl+ether+in+water+using+sunlight+and+a+photocatalyst.&rft.au=Sahle-Demessie%2C+E%3BEnriquez%2C+J%3BGupta%2C+G&rft.aulast=Sahle-Demessie&rft.aufirst=E&rft.date=2002-03-01&rft.volume=74&rft.issue=2&rft.spage=122&rft.isbn=&rft.btitle=&rft.title=Water+environment+research+%3A+a+research+publication+of+the+Water+Environment+Federation&rft.issn=10614303&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-11-19 N1 - Date created - 2002-06-04 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Overview of the use of the U.S. EPA exposure factors handbook. AN - 71699319; 12018010 AB - Risk assessments are important components of the decision making process. At hazardous waste sites, they are used as tools to determine appropriate cleanup levels. Therefore, it is critical that the best up-to-date methods, models, and exposure data are available to the exposure and risk assessor to realistically estimate the potential for human and ecological exposures to environmental contaminants. The EPA Exposure Factors Handbook published in 1997 is a tool available to exposure assessors which summarizes statistical data on exposure factors necessary to conduct human health exposure assessments. Since it was first published by EPA in 1989, the handbook has been the primary source of data for human exposure assessments. The purpose of this paper is to provide an overview of the handbook, its impact, applications, discussion about data gaps, and future directions. JF - International journal of hygiene and environmental health AU - Moya, Jacqueline AU - Phillips, Linda AD - U.S. Environmental Protection Agency (8623D), 1200 Pennsylvania Ave., Washington, DC 20460, USA. moya.jacqueline@epamail.epa.gov Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 155 EP - 159 VL - 205 IS - 1-2 SN - 1438-4639, 1438-4639 KW - Hazardous Waste KW - 0 KW - Index Medicus KW - United States KW - Humans KW - Food Contamination KW - Diet KW - Decision Making KW - Risk Assessment KW - United States Environmental Protection Agency KW - Environmental Health KW - Environmental Exposure KW - Guidelines as Topic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71699319?accountid=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=International+journal+of+hygiene+and+environmental+health&rft.atitle=Overview+of+the+use+of+the+U.S.+EPA+exposure+factors+handbook.&rft.au=Moya%2C+Jacqueline%3BPhillips%2C+Linda&rft.aulast=Moya&rft.aufirst=Jacqueline&rft.date=2002-03-01&rft.volume=205&rft.issue=1-2&rft.spage=155&rft.isbn=&rft.btitle=&rft.title=International+journal+of+hygiene+and+environmental+health&rft.issn=14384639&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-11-05 N1 - Date created - 2002-05-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Chemical mixtures and health effects at Superfund sites. AN - 71698921; 12018009 AB - Between 1991 and 1993, EPA's Office of Research and Development conducted a small health effects research program dedicated to the problem of chemical mixtures at Superfund sites. This paper summarizes key findings from the program. The studies covered a wide range of endpoints, several chemical classes, and mixture complexities ranging from two to five chemicals. Additivity and antagonism were far more common than synergy. Departures from additivity seemed to be on the order of a factor of two or less, an observation that may provide some bounds for concern. JF - International journal of hygiene and environmental health AU - Dyer, Robert S AD - U.S. Environmental Protection Agency, NHEERL, MD-87, NC 27711, USA. dyer.robert@epa.gov Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 149 EP - 153 VL - 205 IS - 1-2 SN - 1438-4639, 1438-4639 KW - Hazardous Substances KW - 0 KW - Hazardous Waste KW - Index Medicus KW - United States KW - Drug Interactions KW - Environmental Health KW - Humans KW - Risk Assessment KW - Research Support as Topic KW - United States Environmental Protection Agency KW - Hazardous Substances -- adverse effects KW - Environmental Exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71698921?accountid=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=International+journal+of+hygiene+and+environmental+health&rft.atitle=Chemical+mixtures+and+health+effects+at+Superfund+sites.&rft.au=Dyer%2C+Robert+S&rft.aulast=Dyer&rft.aufirst=Robert&rft.date=2002-03-01&rft.volume=205&rft.issue=1-2&rft.spage=149&rft.isbn=&rft.btitle=&rft.title=International+journal+of+hygiene+and+environmental+health&rft.issn=14384639&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-11-05 N1 - Date created - 2002-05-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Future directions for EPA Superfund research. AN - 71691908; 12018011 AB - The EPA Office of Research and Development (ORD) identifies and prioritizes future research areas through a Waste Research Coordination Team. The team works together to plan the ORD Superfund research program, and it has members from each of the ORD laboratories as well as representatives from the Superfund office. Superfund scientists have identified several research topics in applied research areas to improve risk assessment methods and reduce uncertainty in site-specific risk assessments. Research areas include: dermal exposure models and toxicity values, improved methods for exposure factors, pharmaco-kinetic dose-response models, bioavailability and statistical methods. This paper presents ORD future research plans in response to these identified research areas. JF - International journal of hygiene and environmental health AU - Wentsel, Randall S AU - Blaney, Ben AU - Kowalski, Lorelei AU - Bennett, David A AU - Grevatt, Peter AU - Frey, Sharon AD - Office of Research and Development, U.S. Environmental Protection Agency, MC8104R, Washington, DC 20460, USA. wentsel.randy@epa.gov Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 161 EP - 163 VL - 205 IS - 1-2 SN - 1438-4639, 1438-4639 KW - Hazardous Substances KW - 0 KW - Index Medicus KW - United States KW - Dose-Response Relationship, Drug KW - Humans KW - Forecasting KW - Research -- trends KW - Risk Assessment KW - Biological Availability KW - United States Environmental Protection Agency KW - Hazardous Substances -- adverse effects KW - Environmental Health KW - Hazardous Substances -- pharmacokinetics KW - Environmental Exposure KW - Models, Statistical KW - Research Support as Topic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71691908?accountid=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=International+journal+of+hygiene+and+environmental+health&rft.atitle=Future+directions+for+EPA+Superfund+research.&rft.au=Wentsel%2C+Randall+S%3BBlaney%2C+Ben%3BKowalski%2C+Lorelei%3BBennett%2C+David+A%3BGrevatt%2C+Peter%3BFrey%2C+Sharon&rft.aulast=Wentsel&rft.aufirst=Randall&rft.date=2002-03-01&rft.volume=205&rft.issue=1-2&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=International+journal+of+hygiene+and+environmental+health&rft.issn=14384639&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-11-05 N1 - Date created - 2002-05-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Overview of EPA Superfund human health research program. AN - 71688902; 12018008 AB - This paper presents major research needs for the Superfund program, and provides an overview of the EPA Office of Research and Development's (ORDs) current human health research program designed to fill some of those data gaps. Research is presented in terms of the risk paradigm and covers exposure, effects, and assessment activities directly funded by Superfund, as well as research not funded by Superfund but directly applicable to Superfund research needs. Research on risk management is not covered. Current research activities conducted by the Superfund program office are also included to provide a full picture of Superfund human health research activities being conducted by EPA. JF - International journal of hygiene and environmental health AU - Kowalski, Lorelei AU - Denne, Jane AU - Dyer, Robert AU - Garrahan, Kevin AU - Wentsel, Randall S AD - US EPA, Office of Research and Development, MC8104R, Washington, DC 20460, USA. kowalski.lorelei@epa.gov Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 143 EP - 148 VL - 205 IS - 1-2 SN - 1438-4639, 1438-4639 KW - Environmental Pollutants KW - 0 KW - Index Medicus KW - United States KW - Humans KW - Risk Assessment KW - Research Support as Topic KW - United States Environmental Protection Agency KW - Environmental Health KW - Environmental Exposure KW - Research -- trends KW - Environmental Pollutants -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71688902?accountid=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=International+journal+of+hygiene+and+environmental+health&rft.atitle=Overview+of+EPA+Superfund+human+health+research+program.&rft.au=Kowalski%2C+Lorelei%3BDenne%2C+Jane%3BDyer%2C+Robert%3BGarrahan%2C+Kevin%3BWentsel%2C+Randall+S&rft.aulast=Kowalski&rft.aufirst=Lorelei&rft.date=2002-03-01&rft.volume=205&rft.issue=1-2&rft.spage=143&rft.isbn=&rft.btitle=&rft.title=International+journal+of+hygiene+and+environmental+health&rft.issn=14384639&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-11-05 N1 - Date created - 2002-05-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Dibenzo-p-dioxins in the environment from ceramics and pottery produced from ball clay mined in the United States. AN - 71669930; 12002454 AB - Processed ball clay samples used in the production of ceramics and samples of the ceramic products were collected and analyzed for the presence and concentration of the 2,3,7,8-Cl substituted polychlorinated dibenzo-p-dioxins and -furans (PCDDs/PCDFs). The processed ball clay had average PCDD concentrations of 3.2 ng/g toxic equivalents, a congener profile, and isomer distribution consistent with those found previously in raw ball clay. The PCDF concentrations were below the average limit of detection (LOD) of 0.5 pg/g. The final fired ceramic products were found to be free of PCDDs/PCDFs at the LODs. A consideration of the conditions involved in the firing process suggests that the PCDDs, if not destroyed, may be released to the atmosphere and could represent an as yet unidentified source of dioxins to the environment. In addition, the PCDDs in clay dust generated during manufacturing operations may represent a potential occupational exposure. JF - Chemosphere AU - Ferrario, Joseph AU - Byrne, Christian AD - United States Environmental Protection Agency, Office of Prevention, Pesticides, and Toxic Substances, Environmental Chemistry Laboratory, Stennis Space Center, Mississippi 39529, USA. ferrario.joseph@epa.gov Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 1297 EP - 1301 VL - 46 IS - 9-10 SN - 0045-6535, 0045-6535 KW - Aluminum Silicates KW - 0 KW - Benzofurans KW - Dibenzofurans, Polychlorinated KW - Polychlorinated Dibenzodioxins KW - Soil Pollutants KW - clay KW - 1302-87-0 KW - Index Medicus KW - United States KW - Incineration KW - Mining KW - Polychlorinated Dibenzodioxins -- analogs & derivatives KW - Ceramics KW - Polychlorinated Dibenzodioxins -- analysis KW - Aluminum Silicates -- chemistry KW - Benzofurans -- analysis KW - Soil Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71669930?accountid=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=Dibenzo-p-dioxins+in+the+environment+from+ceramics+and+pottery+produced+from+ball+clay+mined+in+the+United+States.&rft.au=Ferrario%2C+Joseph%3BByrne%2C+Christian&rft.aulast=Ferrario&rft.aufirst=Joseph&rft.date=2002-03-01&rft.volume=46&rft.issue=9-10&rft.spage=1297&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=00456535&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-11-04 N1 - Date created - 2002-05-10 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - In situ stabilization of soil lead using phosphorus and manganese oxide: influence of plant growth. AN - 71571021; 11931448 AB - In situ stabilization of Pb contaminated soils can be accomplished by adding P and Mn(IV) oxide. However, the long-term efficacy of in situ stabilization under continual P removal through plant growth is unknown. Moreover, the effects these treatments have on phytoavailability of other metals (Cd and Zn) commonly associated with Pb in soil are not well understood. Greenhouse experiments using sudax [Sorghum vulgare (L.) Moench] and Swiss chard [Beta vulgaris (L.) Koch] were carried out to evaluate the effects of plant growth on soil Pb bioavailability to humans after addition of P and other amendments, and the effects of these treatments on Pb, Cd, and Zn phytoavailability in three metal-contaminated soils. Eight treatments were used: zero P; 2500 mg of P as triple superphosphate (TSP); 5000 mg of P as TSP or phosphate rock (PR); 5000 mg of Mn oxide/kg; and combinations of Mn oxide and P as TSP or PR. The addition of P and/or Mn oxide significantly reduced bioavailable Pb, as measured by the physiologically based extraction test (PBET), in soils compared with the control even after extensive cropping. The PBET data also suggested that removal of P from soluble P sources by plants could negate the beneficial effects of P on bioavailable Pb, unless sufficient soluble P was added or soluble P was combined with Mn oxide. In general, Ph, Cd, and Zn concentrations in shoot tissues of sudax and Swiss chard were reduced significantly by TSP and did not change with the addition of PR. The combination of PR and Mn oxide significantly reduced Pb concentrations in plants compared with the control. JF - Journal of environmental quality AU - Hettiarachchi, Ganga M AU - Pierzynski, Gary M AD - Department of Agronomy, Throckmorton Plant Sciences Center, Kansas State Univ., Manhattan 66506-5501, USA. hettiarachchi.ganga@epa.gov PY - 2002 SP - 564 EP - 572 VL - 31 IS - 2 SN - 0047-2425, 0047-2425 KW - Manganese Compounds KW - 0 KW - Oxides KW - Soil Pollutants KW - Phosphorus KW - 27YLU75U4W KW - Lead KW - 2P299V784P KW - manganese oxide KW - 64J2OA7MH3 KW - Index Medicus KW - Beta vulgaris -- growth & development KW - Poaceae -- growth & development KW - Biodegradation, Environmental KW - Biological Availability KW - Phosphorus -- chemistry KW - Manganese Compounds -- chemistry KW - Lead -- chemistry KW - Soil Pollutants -- pharmacokinetics KW - Lead -- pharmacokinetics KW - Oxides -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71571021?accountid=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+quality&rft.atitle=In+situ+stabilization+of+soil+lead+using+phosphorus+and+manganese+oxide%3A+influence+of+plant+growth.&rft.au=Hettiarachchi%2C+Ganga+M%3BPierzynski%2C+Gary+M&rft.aulast=Hettiarachchi&rft.aufirst=Ganga&rft.date=2002-03-01&rft.volume=31&rft.issue=2&rft.spage=564&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 completed - 2002-09-10 N1 - Date created - 2002-04-04 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Pulmonary gene expression profiles of spontaneously hypertensive rats exposed to environmental tobacco smoke. AN - 71512943; 11893708 JF - Chest AU - Nadadur, Srikanth S AU - Pinkerton, Kent E AU - Kodavanti, Urmila P AD - Pulmonary Toxicology Branch, National Health and Environmental Effects Research Laboratory, Office of Research and Development, United States Environmental Protection Agency, Research Triangle Park, NC 27711, USA. nadadur.srikanth@epa.gov Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 83S EP - 84S VL - 121 IS - 3 Suppl SN - 0012-3692, 0012-3692 KW - Tobacco Smoke Pollution KW - 0 KW - Abridged Index Medicus KW - Index Medicus KW - Rats KW - Lung Diseases -- etiology KW - Animals KW - Lung Diseases -- genetics KW - Rats, Inbred SHR KW - Oligonucleotide Array Sequence Analysis KW - Genetic Predisposition to Disease KW - Male KW - Hypertension -- complications KW - Gene Expression Profiling KW - Hypertension -- pathology KW - Hypertension -- genetics KW - Lung -- pathology KW - Lung -- metabolism KW - Hypertension -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71512943?accountid=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=Pulmonary+gene+expression+profiles+of+spontaneously+hypertensive+rats+exposed+to+environmental+tobacco+smoke.&rft.au=Nadadur%2C+Srikanth+S%3BPinkerton%2C+Kent+E%3BKodavanti%2C+Urmila+P&rft.aulast=Nadadur&rft.aufirst=Srikanth&rft.date=2002-03-01&rft.volume=121&rft.issue=3+Suppl&rft.spage=83S&rft.isbn=&rft.btitle=&rft.title=Chest&rft.issn=00123692&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-04-17 N1 - Date created - 2002-03-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Evaluation of the AgDISP aerial spray algorithms in the AgDRIFT model. AN - 71489991; 11878481 AB - A systematic evaluation of the AgDISP algorithms, which simulate off-site drift and deposition of aerially applied pesticides, contained in the AgDRIFT model was performed by comparing model simulations to field-trial data collected by the Spray Drift Task Force. Field-trial data used for model evaluation included 161 separate trials of typical agriculture aerial applications under a wide range of application and meteorological conditions. Input for model simulations included information on the aircraft and spray equipment, spray material, meteorology, and site geometry. The model input datasets were generated independently of the field deposition results, i.e., model inputs were in no way altered or selected to improve the fit of model output to field results. AgDRIFT shows a response similar to that of the field observations for many application variables (e.g., droplet size, application height, wind speed). However, AgDRIFT is sensitive to evaporative effects, and modeled deposition in the far-field responds to wet bulb depression whereas the field observations did not. The model tended to overpredict deposition rates relative to the field data for far-field distances, particularly under evaporative conditions. AgDRIFT was in good agreement with field results for estimating near-field buffer zones needed to manage human, crop, livestock, and ecological exposure. JF - Environmental toxicology and chemistry AU - Bird, Sandra L AU - Perry, Stèven G AU - Ray, Scott L AU - Teske, Milton E AD - Ecosystems Research Division, National Exposure Research Laboratory, US Environmental Protection Agency, Athens, Georgia 30605, USA. bird.sandra@epa.gov Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 672 EP - 681 VL - 21 IS - 3 SN - 0730-7268, 0730-7268 KW - Pesticides KW - 0 KW - Index Medicus KW - Animals, Domestic KW - Animals KW - Public Health KW - Meteorological Concepts KW - Humans KW - Databases, Factual KW - Forecasting KW - Air Movements KW - Pesticides -- analysis KW - Algorithms KW - Agriculture -- statistics & numerical data KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71489991?accountid=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+toxicology+and+chemistry&rft.atitle=Evaluation+of+the+AgDISP+aerial+spray+algorithms+in+the+AgDRIFT+model.&rft.au=Bird%2C+Sandra+L%3BPerry%2C+St%C3%A8ven+G%3BRay%2C+Scott+L%3BTeske%2C+Milton+E&rft.aulast=Bird&rft.aufirst=Sandra&rft.date=2002-03-01&rft.volume=21&rft.issue=3&rft.spage=672&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 completed - 2002-08-20 N1 - Date created - 2002-03-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The influence of redox potential on the degradation of halogenated methanes. AN - 71489947; 11878461 AB - To determine the influence of redox potential on the reaction mechanism and to quantify kinetics of the dechlorination by digester sludge, the test compounds trichlorofluoromethane (CFCl3), carbon tetrachloride (CCl4), and chloroform (CHCl3) were incubated in the presence of sludge and variable concentrations of reducing agent. Different sources of dehalogenation were examined, including live sludge and heat-killed sludge, and abiotic mechanisms were quantified in the absence of sludge. Batch incubations were done under redox conditions ranging from +/-534 to -348 mV. The highest rates for the dehalogenation of the three compounds were observed at -348 mV. The dechlorination rate of all the compounds by the heat-resistant catalysts was approximately twofold higher than the live treatments. It was proposed that the higher degradation rates by heat-killed sludge were due to the absence of physical barriers such as cell wall and cell membranes. There was no abiotic dechlorination of CFCl3, whereas CCl4 and CHCl3 were both reduced in the absence of sludge catalyst by Ti (III) citrate at > or =2.5 mM. The degradation pathways of CFCl3 and CHCl3 appeared to be only partially reductive since the production of reduced metabolites was low in comparison with the total amount of original halogenated compounds degraded. For CFCl3, the partial reductive degradation implied that different intra- and extracellular pathways were concurrent. The Gibbs free energy and the redox potential for the dehalogenation reactions utilizing Ti (III) citrate and acetate as electron donors are reported here for the first time. JF - Environmental toxicology and chemistry AU - Olivas, Yolanda AU - Dolfing, Jan AU - Smith, Geoffrey B AD - Biology Department, New Mexico State University, Las Cruces 88003, USA. olivas.yolanda@epamail.epa.gov Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 493 EP - 499 VL - 21 IS - 3 SN - 0730-7268, 0730-7268 KW - Chlorofluorocarbons, Methane KW - 0 KW - Halogens KW - Solvents KW - Chloroform KW - 7V31YC746X KW - trichlorofluoromethane KW - 990TYB331R KW - Carbon Tetrachloride KW - CL2T97X0V0 KW - Index Medicus KW - Oxidation-Reduction KW - Environmental Pollution -- prevention & control KW - Kinetics KW - Temperature KW - Halogens -- chemistry KW - Chlorofluorocarbons, Methane -- chemistry KW - Carbon Tetrachloride -- chemistry KW - Solvents -- chemistry KW - Chloroform -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71489947?accountid=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+toxicology+and+chemistry&rft.atitle=The+influence+of+redox+potential+on+the+degradation+of+halogenated+methanes.&rft.au=Olivas%2C+Yolanda%3BDolfing%2C+Jan%3BSmith%2C+Geoffrey+B&rft.aulast=Olivas&rft.aufirst=Yolanda&rft.date=2002-03-01&rft.volume=21&rft.issue=3&rft.spage=493&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 completed - 2002-08-20 N1 - Date created - 2002-03-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Using mussel isotope ratios to assess anthropogenic nitrogen inputs to freshwater ecosystems. AN - 71489372; 11878641 AB - Stable nitrogen isotope ratios (delta15N) of freshwater mussels from a series of lakes and ponds were related to watershed land use characteristics to assess their utility in determining the source of nitrogen inputs to inland water bodies. Nitrogen isotope ratios measured in freshwater mussels from 19 lakes and ponds in Rhode Island, U.S.A., ranged from 4.9-12.6 per thousand and were found to significantly correlate with the fraction of residential development in 100 and 200 m buffer zones around the ponds. Mussel delta15N values in 12 of the 19 ponds also showed significant correlation with average dissolved nitrate concentrations, which ranged from 23-327 microg L(-1). These observations, in light of previous studies which link elevated delta15N values of nitrogen derived from septic wastewater with those seen in biota, suggest that mussel isotope ratios may reflect nitrogen source in freshwater ecosystems. We followed an iterative approach using multiple regression analysis to assess the relationship between mussel delta15N and the land use categories fraction residential development, fraction feedlot agriculture, fraction row-crop agriculture, and fraction natural vegetation in 100 and 200 m buffer zones and pond watersheds. From this we developed a simple regression model to predict mussel delta15N from the fraction of residential development in the 200 m buffer zone around the pond. Subsequent testing with data from 16 additional sites in the same ecoregion led us to refine the model by incorporating the fraction of natural vegetation. The overall average absolute difference between measured and predicted delta15N values using the two-parameter model was 1.6 per thousand. Potential sources of error in the model include differences in the scale and categorization of land-use data used to generate and test the model, differences in physical characteristics, such as retention time and range of residential development, and exclusion of sources of enriched nitrogen such as runoff from feedlot operations or increased nitrogen loading from inefficient or failed septic systems. JF - Environmental monitoring and assessment AU - McKinney, R A AU - Lake, J L AU - Charpentier, M A AU - Ryba, S AD - US Environmental Protection Agency, Atlantic Ecology Division, Narragansett, Rhode Island, USA. mckinney.rick@epamail.epa.gov Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 167 EP - 192 VL - 74 IS - 2 SN - 0167-6369, 0167-6369 KW - Fertilizers KW - 0 KW - Nitrogen Isotopes KW - Water Pollutants KW - Nitrogen KW - N762921K75 KW - Index Medicus KW - Sensitivity and Specificity KW - Agriculture KW - Animals KW - Nitrogen Isotopes -- analysis KW - Water Pollutants -- analysis KW - Bivalvia -- physiology KW - Eutrophication KW - Nitrogen -- analysis KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71489372?accountid=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+monitoring+and+assessment&rft.atitle=Using+mussel+isotope+ratios+to+assess+anthropogenic+nitrogen+inputs+to+freshwater+ecosystems.&rft.au=McKinney%2C+R+A%3BLake%2C+J+L%3BCharpentier%2C+M+A%3BRyba%2C+S&rft.aulast=McKinney&rft.aufirst=R&rft.date=2002-03-01&rft.volume=74&rft.issue=2&rft.spage=167&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 completed - 2002-08-20 N1 - Date created - 2002-03-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Development of a molecular method to identify hepatitis E virus in water. AN - 71455613; 11849696 AB - Hepatitis E virus (HEV) causes an infectious form of hepatitis associated with contaminated water. By analyzing the sequence of several HEV isolates, a reverse transcription-polymerase chain reaction method was developed and optimized that should be able to identify all of the known HEV strains. When tested under laboratory conditions, this method was able to detect low levels of five diverse HEV variants. In addition, internal controls were constructed so that any PCR inhibition could be detected. Finally, virus-spiked environmental water samples were analyzed successfully with these assays. JF - Journal of virological methods AU - Grimm, Ann C AU - Fout, G S AD - Biohazard Assessment Research Branch, National Exposure Research Laboratory, US Environmental Protection Agency, 26 W. Martin Luther King Jr. Drive, Cincinnati, OH 45268, USA. grimm.ann@epa.gov Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 175 EP - 188 VL - 101 IS - 1-2 SN - 0166-0934, 0166-0934 KW - RNA, Viral KW - 0 KW - Index Medicus KW - United States KW - Sensitivity and Specificity KW - Phylogeny KW - Environmental Monitoring KW - Genetic Variation KW - Mexico KW - Humans KW - Feces -- virology KW - Africa KW - Asia KW - Cluster Analysis KW - Hepatitis E virus -- isolation & purification KW - Hepatitis E virus -- genetics KW - Reverse Transcriptase Polymerase Chain Reaction KW - Water Microbiology KW - RNA, Viral -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71455613?accountid=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+virological+methods&rft.atitle=Development+of+a+molecular+method+to+identify+hepatitis+E+virus+in+water.&rft.au=Grimm%2C+Ann+C%3BFout%2C+G+S&rft.aulast=Grimm&rft.aufirst=Ann&rft.date=2002-03-01&rft.volume=101&rft.issue=1-2&rft.spage=175&rft.isbn=&rft.btitle=&rft.title=Journal+of+virological+methods&rft.issn=01660934&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-05-17 N1 - Date created - 2002-02-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Rhizolith evidence in support of a late Holocene sea-level highstand at least 0.5 m higher than present at Key Biscayne, Florida AN - 52136956; 2002-020873 AB - R. Fairbridge and F. Shepard proposed different sea-level curves for the late Holocene. South Florida, as a tectonically stable platform, provides a key locale from which late Quaternary sea-level measurements have been attempted. Previous studies supporting Holocene sea-level curves have focused on mangrove peat deposits, barrier ridges, and archaeological sites. However, in situ biological indicators provide the best evidence in support of varying sea-level positions during the late Holocene. The northeastern side of Key Biscayne, Florida, has two areas of rock reef where rhizoliths (i.e., fossilized root casts) are exposed within the intertidal zone. They have previously been interpreted as the fossilized roots of a former black mangrove (Avicennia germinans) forest. However, the morphology, size, orientation, and areal extent of the rhizoliths is best understood if they are interpreted as the former root casts of turtle grass (Thalassia testudinum). This interpretation would constitute in situ biological evidence of a late Holocene sea-level position at least 0.5 m higher than at present. Previously published (super 14) C dating of the calcareous paste inside the rhizoliths suggests that they formed 1-2 k.y. before present. This corresponds to a higher than present sea-level highstand supported by independent evidence from other areas in south Florida. JF - Geology (Boulder) AU - Froede, Carl R, Jr Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 203 EP - 206 PB - Geological Society of America (GSA), Boulder, CO VL - 30 IS - 3 SN - 0091-7613, 0091-7613 KW - United States KW - shore features KW - Plantae KW - Quaternary KW - mangrove swamps KW - Dade County Florida KW - rhizoliths KW - Holocene KW - Florida KW - Cenozoic KW - sea-level changes KW - mires KW - Miami-Dade County Florida KW - Key Biscayne KW - Thalassia KW - swamps KW - Thalassia testudinum KW - upper Holocene KW - sedimentary structures KW - Atlantic Coastal Plain KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52136956?accountid=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=Geology+%28Boulder%29&rft.atitle=Rhizolith+evidence+in+support+of+a+late+Holocene+sea-level+highstand+at+least+0.5+m+higher+than+present+at+Key+Biscayne%2C+Florida&rft.au=Froede%2C+Carl+R%2C+Jr&rft.aulast=Froede&rft.aufirst=Carl&rft.date=2002-03-01&rft.volume=30&rft.issue=3&rft.spage=203&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/ L2 - http://www.gsajournals.org/gsaonline/?request=get-abstract&issn=0091-7613&volume=030&issue=03&page=0203 http://www.gsajournals.org/ LA - English DB - GeoRef 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 - Number of references - 42 N1 - PubXState - CO N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - Atlantic Coastal Plain; Cenozoic; Dade County Florida; Florida; Holocene; Key Biscayne; mangrove swamps; Miami-Dade County Florida; mires; Plantae; Quaternary; rhizoliths; sea-level changes; sedimentary structures; shore features; swamps; Thalassia; Thalassia testudinum; United States; upper Holocene ER - TY - JOUR T1 - Screening model for volatile pollutants in dual porosity soils AN - 52126135; 2002-020805 AB - This paper develops mass fraction models for transport and fate of agricultural pollutants in structured two-region soils. Mass fraction index models, based on a semi-infinite domain solution, are derived that describe leaching at depth, vapor losses through soil surface, absorption, and degradation in the dynamic- and stagnant-water soil regions. The models predict that leaching is the result of the combined effect of the upward vapor-phase transport relative to downward advection, residence time relative to half-life, dispersion, and lateral diffusive mass transfer. Simulations show that leached fraction of volatile compounds does not always decrease monotonically with increased residence time relative to the pollutant half-life, as a result of complex interactions among the different physical and biochemical processes. The results show that leaching, volatilization, and degradation losses can be affected significantly by lateral diffusive mass transfer into immobile-water regions and advection relative to dispersion (i.e. Peclet number) in the mobile-water regions. It is shown that solute diffusion into the immobile phase and subsequent biochemical decay reduces leaching and vapor losses through soil surface. Potential use of the modified leaching index for the screening of selected pesticides is illustrated for different soil textures and infiltration rates. The analysis may be useful to the management of pesticides and the design of landfills. JF - Journal of Hydrology AU - Hantush, Mohamed M AU - Govindaraju, Rao S AU - Marino, Miguel A AU - Zhang, Zhonglong Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 58 EP - 74 PB - Elsevier, Amsterdam VL - 260 IS - 1-4 SN - 0022-1694, 0022-1694 KW - solute transport KW - landfills KW - unsaturated zone KW - theoretical studies KW - mass transfer KW - soils KW - hydrology KW - diffusion KW - chemical dispersion KW - textures KW - steady flow KW - pollutants KW - physicochemical properties KW - pollution KW - mathematical models KW - adsorption KW - advection KW - porosity KW - volatiles KW - loam KW - infiltration KW - waste disposal KW - pesticides KW - leaching KW - 25:Soils KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52126135?accountid=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=Screening+model+for+volatile+pollutants+in+dual+porosity+soils&rft.au=Tsang%2C+Chin-Fu%3BBenson%2C+Sally+M%3BKobelski%2C+Bruce%3BSmith%2C+Robert+E%3BShestakov%2C+Vsevolod+M&rft.aulast=Tsang&rft.aufirst=Chin-Fu&rft.date=2002-06-01&rft.volume=42&rft.issue=2-3&rft.spage=275&rft.isbn=&rft.btitle=&rft.title=Environmental+Geology+%28Berlin%29&rft.issn=09430105&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 - 2002-01-01 N1 - Number of references - 39 N1 - Document feature - illus. incl. 6 tables N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - adsorption; advection; chemical dispersion; diffusion; hydrology; infiltration; landfills; leaching; loam; mass transfer; mathematical models; pesticides; physicochemical properties; pollutants; pollution; porosity; soils; solute transport; steady flow; textures; theoretical studies; unsaturated zone; volatiles; waste disposal ER - TY - JOUR T1 - The occurrence of septarian and non-septarian concretions in the Upper Cretaceous Blufftown Formation, southwestern Georgia, U.S.A., and their relationship to synsedimentary seismicity AN - 51991060; 2003-037298 AB - Septarian and non-septarian concretions have been found in the upper portion of the Blufftown Formation at several locations along a section of Hannahatchee Creek, in Stewart County, Georgia. These diagenetic features likely originated under shallow burial conditions before the surrounding sediment was compacted. Their general north-south outcrop orientation within the east to west flowing creek suggests they formed due to channelized diagenetic fluid flow. The origin of the forces necessary to create the cracks and brecciation inside the septarian concretions remains unresolved. However, the septaria in this study exhibit features consistent with seismically-induced crack development in keeping with a recently proposed mechanism. The Chattahoochee River Valley has experienced seismic events throughout its history. This area has likely experienced one or more seismic events during the late Cretaceous which has resulted in the formation and development of septarian concretions. JF - Southeastern Geology AU - Froede, Carl R, Jr AU - Howard, Ralph O, Jr Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 63 EP - 73 PB - Duke University, Department of Geology, Durham, NC VL - 41 IS - 1 SN - 0038-3678, 0038-3678 KW - United States KW - secondary structures KW - paleoseismicity KW - southwestern Georgia KW - Cretaceous KW - septaria KW - synsedimentary processes KW - Upper Cretaceous KW - Mesozoic KW - Blufftown Formation KW - concretions KW - sedimentary rocks KW - cracks KW - Chattahoochee River valley KW - Stewart County Georgia KW - occurrence KW - Georgia KW - sedimentary structures KW - clastic rocks KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51991060?accountid=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=Southeastern+Geology&rft.atitle=The+occurrence+of+septarian+and+non-septarian+concretions+in+the+Upper+Cretaceous+Blufftown+Formation%2C+southwestern+Georgia%2C+U.S.A.%2C+and+their+relationship+to+synsedimentary+seismicity&rft.au=Froede%2C+Carl+R%2C+Jr%3BHoward%2C+Ralph+O%2C+Jr&rft.aulast=Froede&rft.aufirst=Carl&rft.date=2002-03-01&rft.volume=41&rft.issue=1&rft.spage=63&rft.isbn=&rft.btitle=&rft.title=Southeastern+Geology&rft.issn=00383678&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 - 69 N1 - PubXState - NC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - SOGEAY N1 - SubjectsTermNotLitGenreText - Blufftown Formation; Chattahoochee River valley; clastic rocks; concretions; cracks; Cretaceous; Georgia; Mesozoic; occurrence; paleoseismicity; secondary structures; sedimentary rocks; sedimentary structures; septaria; southwestern Georgia; Stewart County Georgia; synsedimentary processes; United States; Upper Cretaceous ER - TY - JOUR T1 - Determination of total mercury in fish tissues using combustion atomic absorption spectrometry with gold amalgamation AN - 51942627; 2003-068212 JF - Water, Air and Soil Pollution AU - Cizdziel, James V AU - Hinners, Thomas A AU - Heithmar, Edward M Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 355 EP - 370 PB - Kluwer Academic Publishers, Dordrecht VL - 135 IS - 1-4 SN - 0049-6979, 0049-6979 KW - detection limit KW - mass spectra KW - techniques KW - calibration KW - bioaccumulation KW - Pisces KW - laboratory studies KW - sampling KW - ecology KW - spectra KW - chemical composition KW - mercury KW - concentration KW - toxic materials KW - experimental studies KW - Chordata KW - monitoring KW - pollution KW - atomic absorption spectra KW - biota KW - metals KW - quality control KW - risk assessment KW - Vertebrata KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51942627?accountid=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=Determination+of+total+mercury+in+fish+tissues+using+combustion+atomic+absorption+spectrometry+with+gold+amalgamation&rft.au=Cizdziel%2C+James+V%3BHinners%2C+Thomas+A%3BHeithmar%2C+Edward+M&rft.aulast=Cizdziel&rft.aufirst=James&rft.date=2002-03-01&rft.volume=135&rft.issue=1-4&rft.spage=355&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 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - WAPLAC N1 - SubjectsTermNotLitGenreText - atomic absorption spectra; bioaccumulation; biota; calibration; chemical composition; Chordata; concentration; detection limit; ecology; experimental studies; laboratory studies; mass spectra; mercury; metals; monitoring; Pisces; pollution; quality control; risk assessment; sampling; spectra; techniques; toxic materials; Vertebrata ER - TY - JOUR T1 - Pollution monitoring in two North American estuaries; historical reconstructions using benthic Foraminifera AN - 51805872; 2004-070010 AB - Results of both surface and core studies from two highly impacted estuaries (New Bedford Harbor, Massachusetts, USA, and Halifax Harbour, Nova Scotia, Canada) are presented. New Bedford Harbor is in a highly industrialized area that has undergone severe degradation from a variety of sources for almost 400 years and has been declared an EPA Superfund site. Halifax Harbour has been subjected mostly to domestic, rather than industrial, pollution since the founding of the city in 1749. Although many geochemical studies have been done in both estuaries, there are little baseline data on the biota. In this paper we use benthic foraminiferal assemblages retrieved from sediment cores to reconstruct the biotic changes of the recent past. It is then possible to correlate faunal changes with already known geochemical changes. There are differences between these two sites both because New Bedford Harbor is shallower than Halifax Harbour and because of the different types of pollution. The character of the pollution has changed in New Bedford Harbor as remediation efforts are taking hold. This change can also be detected with the foraminifera. One interesting outcome is that deformities among one species of foraminifera, Haynesina orbiculare, appear to occur simultaneously with high PCBs in the sediments. In Halifax Harbour, where the largest impact is due to high organic input from domestic sources, species tolerant of low oxygen conditions are most prominent at present. Core studies show that prior to the rapid growth of Halifax (in the 1960s) the organic input was much lower than at present. JF - Abstracts with Programs - Geological Society of America AU - Scott, David B AU - Tobin, Richard AU - Latimer, James AU - Asioli, Alessandra AU - Haury, Verena AU - Williamson, Michelle AU - Medioli, Franco S AU - Anonymous Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 79 PB - Geological Society of America (GSA), Boulder, CO VL - 34 IS - 1 SN - 0016-7592, 0016-7592 KW - United States KW - methods KW - chlorinated hydrocarbons KW - Halifax County Nova Scotia KW - benthic taxa KW - PCBs KW - Halifax Nova Scotia KW - environmental analysis KW - remediation KW - Foraminifera KW - estuaries KW - Bristol County Massachusetts KW - Massachusetts KW - sediments KW - Invertebrata KW - halogenated hydrocarbons KW - Maritime Provinces KW - Superfund sites KW - Protista KW - monitoring KW - human activity KW - pollution KW - organic compounds KW - New Bedford Harbor KW - Canada KW - Nova Scotia KW - industrial waste KW - waste disposal KW - Halifax Harbor KW - Eastern Canada KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51805872?accountid=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=Pollution+monitoring+in+two+North+American+estuaries%3B+historical+reconstructions+using+benthic+Foraminifera&rft.au=Scott%2C+David+B%3BTobin%2C+Richard%3BLatimer%2C+James%3BAsioli%2C+Alessandra%3BHaury%2C+Verena%3BWilliamson%2C+Michelle%3BMedioli%2C+Franco+S%3BAnonymous&rft.aulast=Scott&rft.aufirst=David&rft.date=2002-03-01&rft.volume=34&rft.issue=1&rft.spage=79&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, 37th 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 - benthic taxa; Bristol County Massachusetts; Canada; chlorinated hydrocarbons; Eastern Canada; environmental analysis; estuaries; Foraminifera; Halifax County Nova Scotia; Halifax Harbor; Halifax Nova Scotia; halogenated hydrocarbons; human activity; industrial waste; Invertebrata; Maritime Provinces; Massachusetts; methods; monitoring; New Bedford Harbor; Nova Scotia; organic compounds; PCBs; pollution; Protista; remediation; sediments; Superfund sites; United States; waste disposal ER - TY - JOUR T1 - Terrestrial vegetation greenness of the Lower Galveston Bay watershed from satellite remote sensing and its relation to water use and the salinity regime of the Galveston Bay Estuary (USA) AN - 51758535; 2005-013139 JF - International Journal of Remote Sensing AU - Keith, D J AU - Walker, H A AU - Paul, J F Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 905 EP - 916 PB - Taylor & Francis, London VL - 23 IS - 5 SN - 0143-1161, 0143-1161 KW - United States KW - terrestrial environment KW - optical spectra KW - data processing KW - fresh water KW - normalized difference vegetation index KW - vegetation KW - salinity KW - ground water KW - estuaries KW - AVHRR KW - infrared methods KW - drainage basins KW - spectra KW - water use KW - water KW - high-resolution methods KW - monitoring KW - time series analysis KW - statistical analysis KW - geophysical methods KW - shorelines KW - Texas KW - Gulf Coastal Plain KW - satellite methods KW - aquifers KW - Galveston Bay KW - Gulf Coast Aquifer KW - color KW - remote sensing KW - airborne methods KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51758535?accountid=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+Journal+of+Remote+Sensing&rft.atitle=Terrestrial+vegetation+greenness+of+the+Lower+Galveston+Bay+watershed+from+satellite+remote+sensing+and+its+relation+to+water+use+and+the+salinity+regime+of+the+Galveston+Bay+Estuary+%28USA%29&rft.au=Keith%2C+D+J%3BWalker%2C+H+A%3BPaul%2C+J+F&rft.aulast=Keith&rft.aufirst=D&rft.date=2002-03-01&rft.volume=23&rft.issue=5&rft.spage=905&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&rft_id=info:doi/10.1080%2F01431160110040486 L2 - http://www.tandf.co.uk/journals/titles/01431161.asp LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 28 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - airborne methods; aquifers; AVHRR; color; data processing; drainage basins; estuaries; fresh water; Galveston Bay; geophysical methods; ground water; Gulf Coast Aquifer; Gulf Coastal Plain; high-resolution methods; infrared methods; monitoring; normalized difference vegetation index; optical spectra; remote sensing; salinity; satellite methods; shorelines; spectra; statistical analysis; terrestrial environment; Texas; time series analysis; United States; vegetation; water; water use DO - http://dx.doi.org/10.1080/01431160110040486 ER - TY - JOUR T1 - People, fish or bunnies? Screening for potential environmental concerns at contaminated sites AN - 51716580; 2005-043598 JF - Annual West Coast Conference on Contaminated Soils, Sediments, and Water - Abstracts and Supplemental Information AU - Brewer, Roger D AU - Kostecki, Paul T AU - Calabrese, Edward J AU - Bartell, Brenna Y1 - 2002/03// PY - 2002 DA - March 2002 PB - Association for Environmental Health and Sciences, Naval Facilities Engineering Command, San Diego, CA VL - 12 KW - soils KW - protection KW - water quality KW - toxic materials KW - pollution KW - chemical waste KW - drinking water KW - remediation KW - ground water KW - aquifers KW - habitat KW - detection KW - toxicity KW - shallow aquifers KW - risk assessment KW - ecology KW - water resources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51716580?accountid=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+West+Coast+Conference+on+Contaminated+Soils%2C+Sediments%2C+and+Water+-+Abstracts+and+Supplemental+Information&rft.atitle=People%2C+fish+or+bunnies%3F+Screening+for+potential+environmental+concerns+at+contaminated+sites&rft.au=Brewer%2C+Roger+D%3BKostecki%2C+Paul+T%3BCalabrese%2C+Edward+J%3BBartell%2C+Brenna&rft.aulast=Brewer&rft.aufirst=Roger&rft.date=2002-03-01&rft.volume=12&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Annual+West+Coast+Conference+on+Contaminated+Soils%2C+Sediments%2C+and+Water+-+Abstracts+and+Supplemental+Information&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twelfth annual west coast conference on Contaminated soils, sediments, and water N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - CODEN - #06120 N1 - SubjectsTermNotLitGenreText - aquifers; chemical waste; detection; drinking water; ecology; ground water; habitat; pollution; protection; remediation; risk assessment; shallow aquifers; soils; toxic materials; toxicity; water quality; water resources ER - TY - JOUR T1 - Advective flux potential for PAHs from the sediments of the Anacostia River, Washington, DC AN - 51715096; 2005-043624 JF - Annual West Coast Conference on Contaminated Soils, Sediments, and Water - Abstracts and Supplemental Information AU - Chadwick, D B AU - Katz, C AU - Groves, J AU - Smith, C AU - Paulson, R AU - O'Rourke, D AU - Rundell, Bruce AU - Kostecki, Paul T AU - Calabrese, Edward J AU - Bartell, Brenna Y1 - 2002/03// PY - 2002 DA - March 2002 PB - Association for Environmental Health and Sciences, Naval Facilities Engineering Command, San Diego, CA VL - 12 KW - United States KW - sediment-water interface KW - surface water KW - pollution KW - seepage KW - ground water KW - aquifers KW - Anacostia River basin KW - District of Columbia KW - recharge KW - organic compounds KW - intertidal environment KW - infiltration KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - coastal environment KW - chemical composition KW - fluvial environment KW - pore water KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51715096?accountid=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+West+Coast+Conference+on+Contaminated+Soils%2C+Sediments%2C+and+Water+-+Abstracts+and+Supplemental+Information&rft.atitle=Advective+flux+potential+for+PAHs+from+the+sediments+of+the+Anacostia+River%2C+Washington%2C+DC&rft.au=Chadwick%2C+D+B%3BKatz%2C+C%3BGroves%2C+J%3BSmith%2C+C%3BPaulson%2C+R%3BO%27Rourke%2C+D%3BRundell%2C+Bruce%3BKostecki%2C+Paul+T%3BCalabrese%2C+Edward+J%3BBartell%2C+Brenna&rft.aulast=Chadwick&rft.aufirst=D&rft.date=2002-03-01&rft.volume=12&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Annual+West+Coast+Conference+on+Contaminated+Soils%2C+Sediments%2C+and+Water+-+Abstracts+and+Supplemental+Information&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twelfth annual west coast conference on Contaminated soils, sediments, and water N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - CODEN - #06120 N1 - SubjectsTermNotLitGenreText - Anacostia River basin; aquifers; aromatic hydrocarbons; chemical composition; coastal environment; District of Columbia; fluvial environment; ground water; hydrocarbons; infiltration; intertidal environment; organic compounds; pollution; polycyclic aromatic hydrocarbons; pore water; recharge; sediment-water interface; seepage; surface water; United States ER - TY - JOUR T1 - Use of stable isotopic analyses to evaluate the natural biodegradation of MTBE in ground water AN - 51713782; 2005-043585 JF - Annual West Coast Conference on Contaminated Soils, Sediments, and Water - Abstracts and Supplemental Information AU - Kolhatkar, Ravi AU - Wilson, John AU - Kuder, Tomasz AU - Philp, Paul AU - Kostecki, Paul T AU - Calabrese, Edward J AU - Bartell, Brenna Y1 - 2002/03// PY - 2002 DA - March 2002 PB - Association for Environmental Health and Sciences, Naval Facilities Engineering Command, San Diego, CA VL - 12 KW - United States KW - biodegradation KW - contaminant plumes KW - isotopes KW - isotope ratios KW - C-13/C-12 KW - solutes KW - pollution KW - petroleum products KW - stable isotopes KW - ground water KW - aquifers KW - ethers KW - organic compounds KW - methyl tert-butyl ether KW - carbon KW - New Jersey KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51713782?accountid=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+West+Coast+Conference+on+Contaminated+Soils%2C+Sediments%2C+and+Water+-+Abstracts+and+Supplemental+Information&rft.atitle=Use+of+stable+isotopic+analyses+to+evaluate+the+natural+biodegradation+of+MTBE+in+ground+water&rft.au=Kolhatkar%2C+Ravi%3BWilson%2C+John%3BKuder%2C+Tomasz%3BPhilp%2C+Paul%3BKostecki%2C+Paul+T%3BCalabrese%2C+Edward+J%3BBartell%2C+Brenna&rft.aulast=Kolhatkar&rft.aufirst=Ravi&rft.date=2002-03-01&rft.volume=12&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Annual+West+Coast+Conference+on+Contaminated+Soils%2C+Sediments%2C+and+Water+-+Abstracts+and+Supplemental+Information&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twelfth annual west coast conference on Contaminated soils, sediments, and water N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - CA N1 - Last updated - 2014-03-14 N1 - CODEN - #06120 N1 - SubjectsTermNotLitGenreText - aquifers; biodegradation; C-13/C-12; carbon; contaminant plumes; ethers; ground water; isotope ratios; isotopes; methyl tert-butyl ether; microorganisms; New Jersey; organic compounds; petroleum products; pollution; solutes; stable isotopes; United States ER - TY - JOUR T1 - Nutrient delivery and bioaugmentation processes using membranes and gel beads for in-situ bioremediation of contaminated sediments AN - 51713685; 2005-043606 JF - Annual West Coast Conference on Contaminated Soils, Sediments, and Water - Abstracts and Supplemental Information AU - Tabak, Henry H AU - Govind, Rakesh AU - Kostecki, Paul T AU - Calabrese, Edward J AU - Bartell, Brenna Y1 - 2002/03// PY - 2002 DA - March 2002 PB - Association for Environmental Health and Sciences, Naval Facilities Engineering Command, San Diego, CA VL - 12 KW - soils KW - biodegradation KW - experimental studies KW - in situ KW - waste water KW - bioaugmentation KW - pollution KW - bioremediation KW - remediation KW - nutrients KW - organic compounds KW - sediments KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - depositional environment KW - chemical oxygen demand KW - Eh KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51713685?accountid=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+West+Coast+Conference+on+Contaminated+Soils%2C+Sediments%2C+and+Water+-+Abstracts+and+Supplemental+Information&rft.atitle=Nutrient+delivery+and+bioaugmentation+processes+using+membranes+and+gel+beads+for+in-situ+bioremediation+of+contaminated+sediments&rft.au=Tabak%2C+Henry+H%3BGovind%2C+Rakesh%3BKostecki%2C+Paul+T%3BCalabrese%2C+Edward+J%3BBartell%2C+Brenna&rft.aulast=Tabak&rft.aufirst=Henry&rft.date=2002-03-01&rft.volume=12&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Annual+West+Coast+Conference+on+Contaminated+Soils%2C+Sediments%2C+and+Water+-+Abstracts+and+Supplemental+Information&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twelfth annual west coast conference on Contaminated soils, sediments, and water N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - CODEN - #06120 N1 - SubjectsTermNotLitGenreText - aromatic hydrocarbons; bioaugmentation; biodegradation; bioremediation; chemical oxygen demand; depositional environment; Eh; experimental studies; hydrocarbons; in situ; nutrients; organic compounds; pollution; polycyclic aromatic hydrocarbons; remediation; sediments; soils; waste water ER - TY - JOUR T1 - Terminal Electron Acceptor Mass Balance: Light Nonaqueous Phase Liquids and Natural Attenuation AN - 27773682; A2004-34-04636 (CE); 05351403 (EN) AB - Light nonaqueous phase liquids (LNAPLs) in subsurface systems may contain a relatively large amount of biodegradable organic material. During the biochemical oxidation of the organic compounds in the LNAPL, electrons are transferred to terminal electron acceptors (TEA) [i.e., O sub(2), NO super(-) sub(3), Mn(IV), Fe(III), SO super(-) sub(4) super(2), CO sub(2)] via coupled redox reactions. A mass balance between the TEA required for mineralization of benzene, toluene, ethyl benzene, and xylene (BTEX) compounds contained in the subsurface (ground water, soil, LNAPL) and the total TEA available from the ground water and aquifer sediments is proposed and evaluated. The total TEA available is predominantly attributed to the solid phase material; the aqueous phase TEA constitutes a minor amount; and the TEA required for BTEX mineralization is predominantly from the LNAPL. Consequently, a TEA deficit exists in the LNAPL source area. Under these conditions, it may be invalid to assume an infinite supply of TEA and sustained bioattenuation rates. LNAPL removal is one remedial option to reduce the TEA deficit in the source area. JF - Journal of Environmental Engineering AU - Huling, S G AU - Pivetz, B AU - Stransky, R AD - United States Environmental Protection Agency, Office of Research and Development, National Risk Management and Research Laboratory, P.O. Box 1198, Ada, OK, 74820, USA PY - 2002 SP - 246 EP - 252 PB - American Society of Civil Engineers, 1801 Alexander Bell Drive, Reston, VA, 20191-4400, USA, [mailto:journal-services@asce.org], [URL:http://www.asce.org] VL - 128 IS - 3 SN - 0733-9372, 0733-9372 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Nonaqueous phase liquids KW - Ground water KW - Attenuation KW - Abatement and removal KW - Article KW - EE 40:Water Pollution: Monitoring, Control & Remediation (EN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/27773682?accountid=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=Journal+of+Environmental+Engineering&rft.atitle=Terminal+Electron+Acceptor+Mass+Balance%3A+Light+Nonaqueous+Phase+Liquids+and+Natural+Attenuation&rft.au=Huling%2C+S+G%3BPivetz%2C+B%3BStransky%2C+R&rft.aulast=Huling&rft.aufirst=S&rft.date=2002-03-01&rft.volume=128&rft.issue=3&rft.spage=246&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Engineering&rft.issn=07339372&rft_id=info:doi/10.1061%2F%28ASCE%290733-9372%282002%29128%3A3%28246%29 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 DO - http://dx.doi.org/10.1061/(ASCE)0733-9372(2002)128:3(246) ER - TY - JOUR T1 - Total gaseous mercury exchange between air and water river and sea surface in Swedish coastal regions [discussion] AN - 21045855; 5365973 JF - Atmospheric Environment AU - Loux, N T AD - National Exposure Research Lab., US Environmental Protection Agency, Ecosystems Research Division, 960 College Station Road, Athens, GA 30605-2700, USA, loux.nick@epa.gov Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 1403 VL - 36 IS - 8 SN - 1352-2310, 1352-2310 KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts; Oceanic Abstracts; Meteorological & Geoastrophysical Abstracts KW - ANE, Sweden KW - Gas exchange KW - Water Pollution KW - Pollution monitoring KW - Heavy metals KW - Interfaces KW - Pollution dispersion KW - Ocean-atmosphere system KW - Atmospheric boundary layer KW - Freshwater pollution KW - Air-water exchanges KW - Mercury in the atmosphere KW - Rivers KW - Marine KW - Estuaries KW - Brackish KW - Dissolved gases KW - Air-water interface KW - Fate KW - Air pollution KW - Coastal zone KW - Marine pollution KW - Mercury KW - Mercury in river water KW - Mercury exchange, ocean-atmosphere KW - Sweden KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality KW - Q5 08501:General KW - Q2 09244:Air-sea coupling KW - O 4060:Pollution - Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21045855?accountid=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=Atmospheric+Environment&rft.atitle=Total+gaseous+mercury+exchange+between+air+and+water+river+and+sea+surface+in+Swedish+coastal+regions+%5Bdiscussion%5D&rft.au=Loux%2C+N+T&rft.aulast=Loux&rft.aufirst=N&rft.date=2002-03-01&rft.volume=36&rft.issue=8&rft.spage=1403&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 - 2003-01-01 N1 - Last updated - 2016-12-21 N1 - SubjectsTermNotLitGenreText - Gas exchange; Rivers; Pollution monitoring; Heavy metals; Pollution dispersion; Estuaries; Dissolved gases; Air-water interface; Fate; Air pollution; Coastal zone; Marine pollution; Ocean-atmosphere system; Mercury; Atmospheric boundary layer; Air-water exchanges; Freshwater pollution; Mercury in the atmosphere; Mercury in river water; Mercury exchange, ocean-atmosphere; Water Pollution; Interfaces; ANE, Sweden; Sweden; Marine; Brackish ER - TY - JOUR T1 - Temporal persistence of benthic invertebrate communities in south-eastern Australian streams: taxonomic resolution and implications for the use of predictive models AN - 20742387; 5661587 AB - Benthic macroinvertebrates are commonly used to monitor the condition of rivers and streams. Predictive models and biological objectives used in environmental policies, two tools for assessing stream condition, rely on the assumption that the communities from which the invertebrates are derived are sufficiently stable or persistent over time for valid comparisons to be made with test sites sampled years afterwards. There has only been limited testing of this in Australia and there has been no formal programme established to assess long-term changes in aquatic ecosystems. In this paper, data sets collected from the Latrobe and Yarra river systems in south-eastern Australia, sampled over periods of up to 20 years between initial and final samplings, were examined. Using multivariate analyses, it was found that stream communities were persistent at the taxonomic level of family, but significant temporal changes were apparent using species-level data. Tests of rank abundance (Friedman's and Spearman rank correlation) gave mixed results but generally lead to the same conclusions. The implications of these results are discussed with regard to changes in faunal composition, stability of rank abundances, impacts on the use of predictive models and biological objectives, and possible links to major environmental features. JF - Marine & Freshwater Research AU - Metzeling, L AU - Robinson, D AU - Perriss, S AU - Marchant, R AD - CRC for Freshwater Ecology, EPA Victoria, Ernst Jones Drive, Macleod, Vic. 3085, Australia, leon.metzeling@epa.vic.gov.au Y1 - 2002/03// PY - 2002 DA - Mar 2002 SP - 1223 EP - 1234 VL - 53 IS - 8 SN - 1323-1650, 1323-1650 KW - long-term studies KW - ASFA 1: Biological Sciences & Living Resources; Entomology Abstracts; Ecology Abstracts KW - Prediction KW - Marine KW - Temporal variations KW - Climatic changes KW - Environmental impact KW - Freshwater KW - Streams KW - Environmental factors KW - Models KW - Community composition KW - Multivariate analysis KW - Long-term changes KW - Invertebrata KW - Australia KW - Zoobenthos KW - Indicator species KW - Modelling KW - Q1 08462:Benthos KW - D 04310:Freshwater KW - Z 05210:Aquatic entomology KW - D 04002:Surveying and remote sensing KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20742387?accountid=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+%26+Freshwater+Research&rft.atitle=Temporal+persistence+of+benthic+invertebrate+communities+in+south-eastern+Australian+streams%3A+taxonomic+resolution+and+implications+for+the+use+of+predictive+models&rft.au=Metzeling%2C+L%3BRobinson%2C+D%3BPerriss%2C+S%3BMarchant%2C+R&rft.aulast=Metzeling&rft.aufirst=L&rft.date=2002-03-01&rft.volume=53&rft.issue=8&rft.spage=1223&rft.isbn=&rft.btitle=&rft.title=Marine+%26+Freshwater+Research&rft.issn=13231650&rft_id=info:doi/10.1071%2FMF02071 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-06-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Prediction; Temporal variations; Long-term changes; Climatic changes; Environmental impact; Zoobenthos; Environmental factors; Modelling; Community composition; Multivariate analysis; Streams; Indicator species; Models; Invertebrata; Australia; Marine; Freshwater DO - http://dx.doi.org/10.1071/MF02071 ER - TY - JOUR T1 - Synoptic assessment of wetland function: a planning tool for protection of wetland species biodiversity AN - 19808657; 5384745 AB - We present a synoptic assessment intended to maximize the benefits to wetland species biodiversity gained through Clean Water Act regulatory efforts within 225 sub-basins in Missouri, Iowa, Nebraska and Kansas (US Environmental Protection Agency, Region 7), USA. Our assessment provides a method for prioritizing sub-basins potentially critical for supporting wetland species biodiversity and may assist environmental managers and conservationists constrained by limited resources. We prioritize sub-basins based on the projected increase in the risk of wetland species extirpation across Region 7 that would be avoided by applying a unit of regulatory protection effort within a sub-basin. Because the projected increase in risk avoided per unit effort has not been directly measured, we represent this quantity with an index of indicators drawn from readily available data. A conceptual model incorporating landscape and anthropogenic factors guides index development via a series of simple benefit-cost equations. We rank and map the final index scores to show the relative priority among sub-basins for protection effort. High priority sub-basins appear to be concentrated along the major river systems within the region, where sensitive wetland species and intensive agriculture tend to coincide. Protection of wetland species biodiversity is an important, but not exclusive, attribute around which priorities should be set. Nevertheless, incorporation of our results into management strategies should allow managers to cast their local decisions in the context of regional scale maintenance of wetland species biodiversity, increasing ecological benefits for a given protection effort. JF - Biodiversity and Conservation AU - Schweiger, E W AU - Leibowitz, S G AU - Hyman, J B AU - Foster, W E AU - Downing, M C AD - US EPA Region 7, 901 N. Fifth Street, Kansas City, KS 66101, USA, schweiger.billy@epa.gov Y1 - 2002/03// PY - 2002 DA - Mar 2002 SP - 379 EP - 406 VL - 11 IS - 3 SN - 0960-3115, 0960-3115 KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Ecology Abstracts; Sustainability Science Abstracts KW - Environmental monitoring KW - Resource management KW - Biological diversity KW - Biodiversity KW - USA, Kansas KW - Environmental protection KW - USA KW - USA, Iowa KW - USA, Nebraska KW - USA, Missouri KW - Conservation KW - Regional planning KW - Clean Water Act KW - Wetlands KW - National planning KW - Q5 08523:Conservation, wildlife management and recreation KW - P 9000:ENVIRONMENTAL ACTION KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19808657?accountid=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=Biodiversity+and+Conservation&rft.atitle=Synoptic+assessment+of+wetland+function%3A+a+planning+tool+for+protection+of+wetland+species+biodiversity&rft.au=Schweiger%2C+E+W%3BLeibowitz%2C+S+G%3BHyman%2C+J+B%3BFoster%2C+W+E%3BDowning%2C+M+C&rft.aulast=Schweiger&rft.aufirst=E&rft.date=2002-03-01&rft.volume=11&rft.issue=3&rft.spage=379&rft.isbn=&rft.btitle=&rft.title=Biodiversity+and+Conservation&rft.issn=09603115&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-09-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Resource management; Regional planning; Biodiversity; Wetlands; Environmental protection; National planning; Biological diversity; Conservation; Clean Water Act; USA; USA, Iowa; USA, Nebraska; USA, Missouri; USA, Kansas ER - TY - JOUR T1 - Spatial and temporal variability in zooplankton community dynamics in three urbanized bayous of the Pensacola Bay system, Florida, USA AN - 18584270; 5366024 AB - Spatial and temporal patterns in zooplankton community composition and abundance in coastal areas of the Gulf of Mexico are not well understood. Spatial and temporal differences in zooplankton community composition and abundance from 10 stations located in four sites are presented (Pensacola Bay and Bayou Texar, Bayou Chico, and Bayou Grande, three adjacent mesohaline-tidal bayous affected by urban and industrial development). Statistically significant differences (P < 0.05) were found in log-biovolume among sites. The mean biovolume of zooplankton was highest in Pensacola Bay (0.38 ml m super(-3)) followed by Bayou Grande (0.21 ml m super(-3)), Bayou Chico (0.14 ml m super(-3)), and Bayou Texar (0.06 ml m super(-3)). Mean zooplankton abundances (organisms m super(-3)) in Pensacola Bay (3,100 m super(-3)) and Bayou Grande (3,000 m super(-3)) were more than double the abundances in Bayou Texar (1,400 m super(-3)) and Bayou Chico (1,100 m super(-3)). The calanoid copepod Acartia tonsa Dana was the dominant species in the study area. The observed differences in the zooplankton community may be attributable to either one or a combination of factors such as water quality (toxicity), predation, and nutrient availability. Zooplankton abundance increased following two hurricanes that impacted the study area. JF - Gulf and Caribbean Research AU - Lores, E M AU - Lewis, MA AU - Malaeb, Z A AD - US Environmental Protection Agency, 1 Sabine Island Drive, Gulf Breeze, FL 32561, USA, lores.emile@epa.gov Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 1 EP - 11 VL - 14 SN - 1528-0470, 1528-0470 KW - USA, Florida, Pensacola Bay KW - community composition KW - Water Resources Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - ASW, USA, Florida KW - Population characteristics KW - Zooplankton KW - Phytoplankton KW - Food availability KW - Spatial Distribution KW - Water quality KW - ASW, USA, Mexico Gulf KW - Dominant species KW - Urban Areas KW - Bays KW - Temporal Distribution KW - O 1070:Ecology/Community Studies KW - Q1 08461:Plankton KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18584270?accountid=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=Gulf+and+Caribbean+Research&rft.atitle=Spatial+and+temporal+variability+in+zooplankton+community+dynamics+in+three+urbanized+bayous+of+the+Pensacola+Bay+system%2C+Florida%2C+USA&rft.au=Lores%2C+E+M%3BLewis%2C+MA%3BMalaeb%2C+Z+A&rft.aulast=Lores&rft.aufirst=E&rft.date=2002-03-01&rft.volume=14&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Gulf+and+Caribbean+Research&rft.issn=15280470&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Dominant species; Population characteristics; Zooplankton; Food availability; Water quality; Urban Areas; Phytoplankton; Spatial Distribution; Temporal Distribution; Bays; ASW, USA, Mexico Gulf; ASW, USA, Florida ER - TY - JOUR T1 - Macroinvertebrate regionalisation for use in the management of aquatic ecosystems in Victoria, Australia AN - 18569055; 5372895 AB - The development of a broader, more holistic approach to aquatic ecosystem management has been called for in recent years. Physical and chemical objectives alone are no longer considered sufficient for the protection of aquatic ecosystems and should be supplemented with biological objectives. The ubiquitous and sedentary nature of macroinvertebrates, combined with their measurable response to environmental conditions, favour their use as important indicators in environmental policies. To establish biological objectives, there is a need for a regional framework to limit the variability between ecosystems. Past studies have demonstrated that an a posteriori regionalisation approach may be more useful than an a priori approach in explaining single component (e.g. macroinvertebrates) patterns across ecosystems. This is particularly important as aquatic resource management agencies often focus on one or two components of the ecosystem to assess environmental health. This study uses an a posteriori method to delineate and describe biological regions based on edge and riffle macroinvertebrate data. The regionalisation will provide a framework for setting biological objectives, based on the range of reference conditions measured within each separate region. The objectives will include regional checklists for taxa and biotic indices. Predictive modelling in the style of RIVPACS or AUSRIVAS will also be used within each region to develop objectives, incorporating local, regional and systematic features as predictor variables. JF - Environmental Monitoring and Assessment AU - Wells, F AU - Metzeling, L AU - Newall, P AD - Co-operative Research Centre for Freshwater Ecology, Environment Protection Authority, Melbourne, Victoria, Australia, peter.newall@epa.vic.gov.au Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 271 EP - 294 PB - Kluwer Academic Publishers, [mailto:sales@wkap.nl] VL - 74 IS - 3 SN - 0167-6369, 0167-6369 KW - AUSRIVAS KW - Australia, Victoria KW - RIVPACS KW - Entomology Abstracts; Ecology Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts; Pollution Abstracts KW - Animals (Invertebrates) (see also Individual groups) KW - Management KW - Ecosystems KW - Water resources KW - Government policy KW - Check lists KW - Invertebrates KW - Freshwater KW - environmental policy KW - Ecology KW - Biota KW - Aquatic environments KW - Ecosystem management KW - Invertebrata KW - Environmental Policy KW - Bioindicators KW - Environmental monitoring KW - Policies KW - Macrofauna KW - Aquatic ecosystems KW - Aquatic environment KW - Environmental protection KW - Community composition KW - Aquatic Environment KW - Environmental management KW - Environment management KW - Regional variations KW - Water Resources KW - Indicator species KW - D 04700:Management KW - P 9000:ENVIRONMENTAL ACTION KW - Q1 08463:Habitat community studies KW - SW 4020:Evaluation process KW - AQ 00002:Water Quality KW - Q5 08521:Mechanical and natural changes KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18569055?accountid=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=Macroinvertebrate+regionalisation+for+use+in+the+management+of+aquatic+ecosystems+in+Victoria%2C+Australia&rft.au=Wells%2C+F%3BMetzeling%2C+L%3BNewall%2C+P&rft.aulast=Wells&rft.aufirst=F&rft.date=2002-03-01&rft.volume=74&rft.issue=3&rft.spage=271&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 - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Policies; Community composition; Biota; Ecosystem management; Check lists; Regional variations; Environment management; Environmental protection; Indicator species; Management; Government policy; Macrofauna; Aquatic ecosystems; Aquatic environment; Bioindicators; environmental policy; Ecology; Animals (Invertebrates) (see also Individual groups); Aquatic environments; Water resources; Environmental management; Ecosystems; Aquatic Environment; Environmental Policy; Invertebrates; Water Resources; Invertebrata; Freshwater ER - TY - JOUR T1 - A Novel Cell Line, MDA-kb2, That Stably Expresses an Androgen- and GlucocorticoidResponsive Reporter for the Detection of Hormone Receptor Agonists and Antagonists AN - 18441095; 5413310 AB - The U.S. Environmental Protection Agency has proposed that in vitro assays for estrogen receptor (ER)- and androgen receptor (AR)-mediated actions be included in a Tier-I screening battery to detect hormonally active chemicals. Herein we describe the development of a novel stable cell line, MDA-kb2, for screening of androgen agonist and antagonists and to characterize its specificity and sensitivity to endocrine-disrupting chemicals. The breast cancer cell line, MDA-MB-453, was stably transformed with the MMTV-luciferase-neo reporter gene construct. Since both GR and AR are present in the MDA-MB-453 cells, and both receptors can act through the MMTV promoter, compounds that act through either AR or GR activate the MMTV luciferase reporter. As expected, AR agonists such as dihydrotestosterone (DHT), and GR agonists such as dexamethasone (DEX), corticosterone, and aldosterone induce luciferase expression at appropriate concentrations. DHT consistently produced 3--9-fold induction at concentrations from 0.1 to 10 nM. At 1 to 1000 nM, DEX induced luciferase activity 1.3--19.5-fold. To distinguish AR- from GR-mediated ligands, chemicals were assayed concurrently with the antiandrogen, hydroxyflutamide (OHF), which blocks AR- but not GR-mediated responses. In addition, known AR antagonists, including hydroxyflutamide, vinclozolin, vinclozolin metabolites M1 and M2, p,p'-DDE, and linuron inhibited DHT-induced luciferase gene expression at appropriate concentrations in this system. We have found that these cells are relatively easy to culture and maintain. Responsiveness was monitored over time and was stable for more than 80 passages. Some advantages of this assay are that it is relatively rapid (2 days), eliminates the need for transfection, can be conducted in a 96-well plate format, and produces consistent reproducible results. In summary, we have developed a cell line that can be used to screen chemicals, not just for AR- but for GR-mediated activities as well. JF - Toxicological Sciences AU - Wilson, V S AU - Bobseine, K AU - Lambright, C R AU - Gray, LE Jr AD - U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Reproductive Toxicology Division, MD-72, Research Triangle Park, North Carolina 27711, USA Y1 - 2002/03// PY - 2002 DA - Mar 2002 SP - 69 EP - 81 PB - Academic Press, Inc. VL - 66 IS - 1 SN - 1096-6080, 1096-6080 KW - drug screening KW - man KW - tumor cell lines KW - Toxicology Abstracts KW - X 24221:Toxicity testing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18441095?accountid=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+Novel+Cell+Line%2C+MDA-kb2%2C+That+Stably+Expresses+an+Androgen-+and+GlucocorticoidResponsive+Reporter+for+the+Detection+of+Hormone+Receptor+Agonists+and+Antagonists&rft.au=Wilson%2C+V+S%3BBobseine%2C+K%3BLambright%2C+C+R%3BGray%2C+LE+Jr&rft.aulast=Wilson&rft.aufirst=V&rft.date=2002-03-01&rft.volume=66&rft.issue=1&rft.spage=69&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 ER - TY - JOUR T1 - Development of Two Androgen Receptor Assays Using Adenoviral Transduction of MMTV-Luc Reporter and/or hAR for Endocrine Screening AN - 18437569; 5413311 AB - The discovery of xenobiotics that interfere with androgen activity has highlighted the need to assess chemicals for their ability to modulate dihydrotestosterone (DHT)-receptor binding. Previous test systems have used cells transfected with plasmid containing a reporter gene. Here we report the use of transduction for gene delivery and assessment of the modulation of DHT-induced gene activation. Transduction, the ability of replication-defective viruses to deliver biologically competent genes, is a well understood biological process, which has been utilized to repair defective genes in humans as well as to express exogenous genes in rodent models. Human breast carcinoma cells (MDA-MB-453) containing endogenous copies of the androgen (hAR) and glucocorticoid (GR) receptors were transduced with replication-defective human adenovirus type 5 containing the luciferase (Luc) reporter gene driven by the AR- and GR-responsive glucocorticoid-inducible hormone response element found with the mammary tumor virus LTR (Ad/MLUC7). In a second set of experiments, CV-1 cells were transduced as above with MMTV-luc and also hAR. Cells were subcultured in 96-well plates, transduced with virus, exposed to chemicals, incubated for 48 h, lysed, and assayed for luciferase. Luc gene expression was induced in a dose-dependent manner by DHT, estradiol, and dexamethasone (NMA only) and inhibited by AR antagonist hydroxyflutamide (OHF), hydroxy-DDE, HPTE (2,2-bis (p-hydroxyphenyl)-1,1, 1-trichloroethane), a methoxychlor metabolite, and M1 and M2 (vinclozolin metabolites). The transduced cells responded to AR agonists and antagonists as predicted from our other studies, with a very robust and reproducible response. Over all replicates, 0.1 nM DHT induced luc expression by about 45-fold in CV-1 cells (intra-assay CV = 20%) and 1 micromolar OHF inhibited DHT by about 80%. In the transduced MDA cells, 0.1 nM DHT induced luc by about 24-fold (intra-assay CV = 33%), which was inhibited by OHF by about 85%. DHT-induced luciferase activity peaked in both cell lines between 1 and 100 nM, displaying about 64- and 115-fold maximal induction in the CV-1 and MDA 453 cells, respectively. For agonists, a two-fold induction of luc over media control was statistically significant. For AR antagonists, a 25--30% inhibition of DHT-induced luc expression was typically statistically significant. Comparing the two assays, the transduced CV-1 cells were slightly more sensitive to AR-mediated responses, but the transduced MDA 453 cells were more responsive to GR agonists. In summary, these assays correctly identified the endocrine activity of all chemicals examined and displayed sensitivity with a relatively low variability and a high-fold induction over background. Adenovirus transduction for EDC screening has the potential to be employed in a high-throughput mode, and could easily be applied to other cell lines and utilized to deliver other receptors and reporter genes. JF - Toxicological Sciences AU - Hartig, P C AU - Bobseine, K L AU - Britt, B H AU - Cardon, M C AU - Lambright, C R AU - Wilson, V S AU - Gray, LE Jr AD - Reproductive Toxicology Division, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA Y1 - 2002/03// PY - 2002 DA - Mar 2002 SP - 82 EP - 90 PB - Academic Press, Inc. VL - 66 IS - 1 SN - 1096-6080, 1096-6080 KW - drug screening KW - man KW - tumor cell lines KW - Toxicology Abstracts KW - X 24221:Toxicity testing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18437569?accountid=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=Development+of+Two+Androgen+Receptor+Assays+Using+Adenoviral+Transduction+of+MMTV-Luc+Reporter+and%2For+hAR+for+Endocrine+Screening&rft.au=Hartig%2C+P+C%3BBobseine%2C+K+L%3BBritt%2C+B+H%3BCardon%2C+M+C%3BLambright%2C+C+R%3BWilson%2C+V+S%3BGray%2C+LE+Jr&rft.aulast=Hartig&rft.aufirst=P&rft.date=2002-03-01&rft.volume=66&rft.issue=1&rft.spage=82&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 ER - TY - JOUR T1 - Partitioning of Benzene in Blood: Influence of Hemoglobin Type in Humans and Animals AN - 18410963; 5397505 AB - Earlier studies have shown that air/blood partition coefficients (PCs) for many volatile organic chemicals (VOCs) are much higher in rat blood than in human blood. It has been suggested that the discrepancy could be attributed to the fact that hemoglobin (Hb) in rat blood exists in a quasi-crystalline form of hydrophobicity greater than that of normal human Hb (HbA) and thus has a higher carrying capacity for VOCs. In the present study, we used benzene as a prototypic VOC to examine its relative partitioning into human and animal blood. Additionally, we sought to ascertain whether the water-insoluble form of hemoglobin (HbS) found in subjects with homozygous sickle cell (SC) disease has a greater VOC-carrying capacity than does HbA blood. At a low-O sub(2) tension, HbS switches to water-insoluble polymers, which physically deforms the red blood cells (RBCs) to the sickle shape. We equilibrated HbA, HbS, Hartley guinea pig, CD1 mouse, and rat (F-344, Wistar, and Sprague-Dawley) blood and their respective fractions with benzene vapor (80 or 400 ppm) for 3 hr at 37 degree C in air-tight vials. We introduced benzene vapor into the vial head space that contained air or respiratory mixtures of venous-type (low-O sub(2)) or arterial-type (high-O sub(2)) gases. The blood measurements included the PC, Hb, partial pressures of O sub(2) (pO sub(2)) and CO sub(2) (pCO sub(2)), pH, and percentage of SCs. The benzene concentration had no effect on these parameters, and the high- and low-O sub(2) gas mixtures produced the expected changes in pO sub(2), pCO sub(2), and pH. At equilibrium, the low-O sub(2) HbS blood had approximately 85% SCs compared with roughly 15% with air or high-O sub(2) gas. PCs for rat and mouse blood were about 100% higher than those for human and guinea pig blood, but the PC for deoxygenated HbS blood was only slightly higher than that for HbA or oxygenated HbS blood. Benzene showed higher affinities for RBCs in the deoxygenated HbS, rat, and mouse blood and higher affinity for plasma in the guinea pig blood. There was no evidence of disproportionate partitioning of benzene into oxygenated HbS or into HbA blood forms. These data suggest that the water solubility of Hb alone appears to have little effect on the VOC-carrying capacity of blood and that the influence of species is large in comparison. These latter differences in partitioning may depend on the number of hydrophobic sites on the surface of the plasma/heme proteins and thus be unique to the species. JF - Environmental Health Perspectives AU - Wiester, MJ AU - Winsett, D W AU - Richards, J H AU - Doerfler, D L AU - Costa, D L AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Laboratory, ETD, PTB, MD-82, Research Triangle Park, NC 27711, USA, wiester.mildred@epa.gov Y1 - 2002/03// PY - 2002 DA - Mar 2002 SP - 255 EP - 261 VL - 110 IS - 3 SN - 0091-6765, 0091-6765 KW - man KW - partitioning KW - Toxicology Abstracts KW - X 24153:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18410963?accountid=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=Partitioning+of+Benzene+in+Blood%3A+Influence+of+Hemoglobin+Type+in+Humans+and+Animals&rft.au=Wiester%2C+MJ%3BWinsett%2C+D+W%3BRichards%2C+J+H%3BDoerfler%2C+D+L%3BCosta%2C+D+L&rft.aulast=Wiester&rft.aufirst=MJ&rft.date=2002-03-01&rft.volume=110&rft.issue=3&rft.spage=255&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 ER - TY - JOUR T1 - Effectiveness of Chromosomal and Plasmid-linked Genes for Enumerating Biotechnology Agents In Vivo AN - 18394872; 5384394 AB - Following the release of biotechnology agents, detection methods for monitoring human exposure to these microorganisms should be available. Enzymatic markers from chromosomal (lacZY) and plasmid (xylE) DNA were evaluated in an in vivo mouse model. Mice were treated orally or intranasally with Pseudomonas aureofaciens 3732RN-L11 (lacZY), 3732RN-L11::pRO1940 (lacZY xylE), or ATCC 13985. All strains were cleared within 5 days from the cecum or lungs. Direct plating, without intermediate antibiotic resistance selection, was used to detect the genetic markers. Chromosomal-linked lacZ was stable in vivo and in vitro but plasmid-linked xylE was not. Of the isolates recovered, 75% (in vivo, oral), 98% (in vivo, intranasal), and 16% (in vitro) remained XyIE +. Though more tedious to enumerate, both lacZY and xylE are plausible alternatives to antibiotic resistance markers for in vivo biotechnology risk assessment studies. JF - Microbial Ecology in Health and Disease AU - George, SE AU - Nelson, G M AD - Environmental Carcinogenesis Division (MD-68), US Environmental Protection Agency, Research Triangle Park, NC 27711, USA, george.elizabeth@epa.gov Y1 - 2002/03// PY - 2002 DA - Mar 2002 SP - 19 EP - 23 VL - 14 IS - 1 SN - 0891-060X, 0891-060X KW - lacZ gene KW - mice KW - xylE gene KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts; Microbiology Abstracts B: Bacteriology KW - W4 130:General Biomedical Engineering: Tools & Techniques KW - J 02910:Miscellaneous topics KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18394872?accountid=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=Effectiveness+of+Chromosomal+and+Plasmid-linked+Genes+for+Enumerating+Biotechnology+Agents+In+Vivo&rft.au=George%2C+SE%3BNelson%2C+G+M&rft.aulast=George&rft.aufirst=SE&rft.date=2002-03-01&rft.volume=14&rft.issue=1&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=Microbial+Ecology+in+Health+and+Disease&rft.issn=0891060X&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 - Seasonal Survival, Movement, and Habitat Use of Age-0 Rainbow Trout in the Henrys Fork of the Snake River, Idaho AN - 18394110; 5383941 AB - We quantified seasonal abundances, apparent survival rates, movements, and habitat use of age-0 rainbow trout Oncorhynchus mykiss in a 25-km reach of the Henrys Fork of the Snake River, Idaho, to determine what factors limit recruitment to the population. Natural production of rainbow trout occurred in each year of the study (1995-1997) and ranged from 158,000 to 306,000 age-0 fish each summer. No significant loss of age-0 rainbow trout occurred between summer and autumn; suitable habitat was present throughout the channel in all reaches and supported large abundances of age-0 rainbow trout through this period. The greatest losses (77-100%) occurred during winter and primarily involved fish from center-channel macrophyte beds. Most river sections, which had only simple bank habitat, did not support any age-0 rainbow trout through the entire winter. Overwinter survival was greatest (18-23%) in Box Canyon, a river section characterized by complex bank habitat, high gradient, and large substrate. Fish that were marked in river sections with simple bank habitat in autumn had moved to sections with complex bank habitat by the following spring. Winter habitat limits rainbow trout recruitment in the Henrys Fork. JF - Transactions of the American Fisheries Society AU - Mitro, M G AU - Zale, A V AD - U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, Rhode Island 02882, USA, mitro.matt@epa.gov Y1 - 2002/03// PY - 2002 DA - Mar 2002 SP - 271 EP - 286 VL - 131 IS - 2 SN - 0002-8487, 0002-8487 KW - Juveniles KW - Rainbow trout KW - Animal Behavior Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Freshwater KW - Q1 01341:General KW - Y 25655:Fish KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18394110?accountid=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=Transactions+of+the+American+Fisheries+Society&rft.atitle=Seasonal+Survival%2C+Movement%2C+and+Habitat+Use+of+Age-0+Rainbow+Trout+in+the+Henrys+Fork+of+the+Snake+River%2C+Idaho&rft.au=Mitro%2C+M+G%3BZale%2C+A+V&rft.aulast=Mitro&rft.aufirst=M&rft.date=2002-03-01&rft.volume=131&rft.issue=2&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&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 - Indicators of Ecological Stress and Their Extent in the Population of Northeastern Lakes: A Regional-Scale Assessment AN - 18382905; 5358615 AB - Although stressors such as nonnative fish introductions, mercury contamination, and shoreline alteration are not generally considered subjects for environmental management, they are as widespread as eutrophication, and more extensive than acidification, in the lakes of the northeastern states. JF - Bioscience AU - Whittier, T R AU - Paulsen, S G AU - Larsen, D P AU - Peterson, SA AU - Herlihy, A T AU - Kaufmann, PR AD - Aquatic Monitoring and Bioassessment Branch, Western Ecology Division, US Environmental Protection Agency National Health and Ecological Effects Research Laboratory, Corvallis, OR 97333, USA, whittier.thom@epamail.epa.gov Y1 - 2002/03// PY - 2002 DA - Mar 2002 SP - 235 EP - 247 PB - American Institute of Biological Sciences VL - 52 IS - 3 SN - 0006-3568, 0006-3568 KW - shoreline alteration KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; Pollution Abstracts KW - D 04700:Management KW - Q1 01381:General KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18382905?accountid=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=Bioscience&rft.atitle=Indicators+of+Ecological+Stress+and+Their+Extent+in+the+Population+of+Northeastern+Lakes%3A+A+Regional-Scale+Assessment&rft.au=Whittier%2C+T+R%3BPaulsen%2C+S+G%3BLarsen%2C+D+P%3BPeterson%2C+SA%3BHerlihy%2C+A+T%3BKaufmann%2C+PR&rft.aulast=Whittier&rft.aufirst=T&rft.date=2002-03-01&rft.volume=52&rft.issue=3&rft.spage=235&rft.isbn=&rft.btitle=&rft.title=Bioscience&rft.issn=00063568&rft_id=info:doi/10.1043%2F0006-3568%282002%29052%280235%3AIOESAT%292.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0006-3568&volume=52&page=235 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1043/0006-3568(2002)052(0235:IOESAT)2.0.CO;2 ER - TY - JOUR T1 - Factors Affecting Brain Cholinesterase Activity in Bluegill (Lepomis macrochirus) AN - 18376134; 5350253 AB - Organophosphorus insecticides (OPs) are widely used to control crop pests, and can enter aquatic systems draining agricultural watersheds. Because OPs are highly toxic to aquatic organisms, monitoring is important, yet difficult due to the low persistence of many OPs. Cholinesterase (ChE) inhibition can be used to monitor organisms' exposure to OPs and carbamates; however, high variability in ChE activity may interfere with the ability of the assay to detect OP exposure. Several potential sources of variation in ChE activity, including water temperature, storage of samples, euthanasia method, and fish sex and size, were investigated in bluegill (Lepomis macrochirus). ChE activity did not vary significantly with water temperature in the range 20-31 degree C, or following short-term storage of euthanized bluegill up to 8 h at 4 and 19 degree C or long-term storage of brain homogenates up to 389 d at -198 degree C. There was no difference in ChE activity by euthanasia method (spinal cord severing or anesthesia with Finquel registered ), nor by sex of fish. Mean ChE activity varied inversely with fish total length. Of the variables investigated in this study, only size needs to be restricted in fish collected for monitoring of OPs. JF - Water, Air, & Soil Pollution AU - Beauvais, S L AU - Cole, K J AU - Atchison, G J AU - Coffey, M AD - Department of Animal Ecology, Iowa State University, Ames, IA 50011, U.S.A. Department of Pesticide Regulation, Worker Health and Safety Branch, California EPA, P.O. Box 4015, Sacramento, CA 95812, U.S.A., sbeauvais@cdpr.ca.gov Y1 - 2002/03// PY - 2002 DA - Mar 2002 SP - 249 EP - 264 PB - Kluwer Academic Publishers VL - 135 IS - 1-4 SN - 0049-6979, 0049-6979 KW - Bluegill KW - Cholinesterase KW - brain KW - cholinesterase KW - ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Toxicology Abstracts; Pollution Abstracts KW - Freshwater KW - X 24135:Biochemistry KW - SW 3030:Effects of pollution KW - Q5 01504:Effects on organisms KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18376134?accountid=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%2C+Air%2C+%26+Soil+Pollution&rft.atitle=Factors+Affecting+Brain+Cholinesterase+Activity+in+Bluegill+%28Lepomis+macrochirus%29&rft.au=Beauvais%2C+S+L%3BCole%2C+K+J%3BAtchison%2C+G+J%3BCoffey%2C+M&rft.aulast=Beauvais&rft.aufirst=S&rft.date=2002-03-01&rft.volume=135&rft.issue=1-4&rft.spage=249&rft.isbn=&rft.btitle=&rft.title=Water%2C+Air%2C+%26+Soil+Pollution&rft.issn=00496979&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 - Remarks by Linda Murphy of EPA to New England Water Works Association AN - 1665487206; 5387268 AB - Our newly appointed Regional Administrator, Bob Varney, spoke at your September conference. In the short time I have this morning, I won't repeat what you heard from Bob, but I will update you on EPA's counter-terrorism efforts nationally and in the region. Though counter-terrorism has emerged as one of our top priorities, there are still many other program challenges before us and I'll summarize some of them to give you a flavor of what EPA is working on. And last, I'll conclude with some observations about the importance of and difficulties associated with effective communications. JF - Journal of New England Water Works Association AU - Anonymous AD - Office of Ecosystem Protection, U.S. Environmental Protection Agency, New England Region, 1 Congress St., Boston, MA 02114-2023, USA Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 19 EP - 22 VL - 116 IS - 1 SN - 0028-4939, 0028-4939 KW - Water Resources Abstracts KW - Administrative Agencies KW - Water Management KW - Conferences KW - Organizations KW - Communication KW - Priorities KW - Political Aspects KW - SW 4050:Water law and institutions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1665487206?accountid=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+New+England+Water+Works+Association&rft.atitle=Remarks+by+Linda+Murphy+of+EPA+to+New+England+Water+Works+Association&rft.au=Anonymous&rft.aulast=Anonymous&rft.aufirst=&rft.date=2002-03-01&rft.volume=116&rft.issue=1&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=Journal+of+New+England+Water+Works+Association&rft.issn=00284939&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Administrative Agencies; Water Management; Organizations; Conferences; Communication; Priorities; Political Aspects ER - TY - JOUR T1 - Characterization and Reduction of Formaldehyde Emissions from a Low-VOC Latex Paint AN - 16145880; 5581276 AB - The patterns of formaldehyde emission from a low volatile organic compound (VOC) latex paint applied to gypsum board were measured and analyzed by small environmental chamber tests. It was found that the formaldehyde emissions resulted in a sharp increase of chamber air formaldehyde concentration to a peak followed by transition to a long-term slow decay. A semi-empirical first-order decay in-series model was developed to interpret the chamber data. The model characterized the formaldehyde emissions from the paint in three stages: an initial "puff" of instant release, a fast decay, and a final stage of slow decay controlled by a solid-phase diffusion process that can last for more than a month. The model was also used to estimate the peak concentration and the amount of formaldehyde emitted during each stage. The formaldehyde sources were investigated by comparing emission patterns and modeling outcomes of different paint formulations. The biocide used to preserve the paint was found to be a major source of the formaldehyde. Chamber test results demonstrated that replacing the preservative with a different biocide for the particular paint tested resulted in an approximate reduction of 55% of formaldehyde emissions. But the reduction affected only the third-stage long-term emissions. JF - Indoor Air AU - Chang, JCS AU - Guo, Z AU - Fortmann, R AU - Lao, H-C AD - Air Pollution Prevention and Control Division, National Risk Management Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA, chang.john@epa.gov Y1 - 2002/03// PY - 2002 DA - Mar 2002 SP - 10 EP - 16 VL - 12 IS - 1 SN - 0905-6947, 0905-6947 KW - Pollution Abstracts KW - Emission measurements KW - Formaldehyde KW - Volatile organic compounds KW - Paints KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16145880?accountid=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=Indoor+Air&rft.atitle=Characterization+and+Reduction+of+Formaldehyde+Emissions+from+a+Low-VOC+Latex+Paint&rft.au=Chang%2C+JCS%3BGuo%2C+Z%3BFortmann%2C+R%3BLao%2C+H-C&rft.aulast=Chang&rft.aufirst=JCS&rft.date=2002-03-01&rft.volume=12&rft.issue=1&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Indoor+Air&rft.issn=09056947&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2003-03-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Emission measurements; Formaldehyde; Volatile organic compounds; Paints ER - TY - JOUR T1 - Evaluating the economics and environmental friendliness of conceptual designs for new and retrofitted chemical processes AN - 16143142; 5584291 AB - This work describes a method for using spreadsheet analyses of process designs and retrofits to provide simple and quick economic and environmental evaluations simultaneously. The method focuses attention onto those streams and components that have the largest monetary values and potential environmental impacts. Through example processes, including the hydrodealkylation of toluene and the pyrolysis of dichloroethane, results show that alternative processes are easy to evaluate. The method reveals its power from the simple and quick results that are obtained. Thus, the method allows one to focus on more than just economics and meeting environmental regulations and to free time for considering aspects of pollution prevention. JF - Clean Technologies and Environmental Policy AU - Smith, R L AD - National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 26W. Martin Luther King Drive, Cincinnati, OH 45268, USA, smith.raymond@epa.gov Y1 - 2002/03// PY - 2002 DA - Mar 2002 SP - 383 EP - 391 VL - 3 IS - 4 SN - 1618-954X, 1618-954X KW - Pollution Abstracts KW - Pollution prevention KW - Economics KW - environmental regulations KW - Environmental engineering KW - Chemical industry KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16143142?accountid=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=Clean+Technologies+and+Environmental+Policy&rft.atitle=Evaluating+the+economics+and+environmental+friendliness+of+conceptual+designs+for+new+and+retrofitted+chemical+processes&rft.au=Smith%2C+R+L&rft.aulast=Smith&rft.aufirst=R&rft.date=2002-03-01&rft.volume=3&rft.issue=4&rft.spage=383&rft.isbn=&rft.btitle=&rft.title=Clean+Technologies+and+Environmental+Policy&rft.issn=1618954X&rft_id=info:doi/10.1007%2Fs10098-001-0136-5 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2003-04-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Pollution prevention; Economics; environmental regulations; Environmental engineering; Chemical industry DO - http://dx.doi.org/10.1007/s10098-001-0136-5 ER - TY - JOUR T1 - Wastewater collection system infrastructure research needs in the USA AN - 16135744; 5385372 AB - Many of the wastewater collection systems in the USA were developed in the early part of the last century. Maintenance, retrofits, and rehabilitations since then have resulted in patchwork systems consisting of technologies from different eras. More advanced and cost-effective methods to properly rehabilitate these systems must be considered to guarantee sustainability into the future. Achieving sustainable development presents a challenge to deliver new and innovative infrastructure and facilities needed to serve society while protecting the environment. In the context of this paper, sustainable development would provide new and improved solutions to existing and emerging problems associated with wastewater collection system infrastructure. Such solutions would, for example, include consideration of innovative approaches and practices for identifying and rehabilitating problems in existing systems and ways of preventing these problems in new construction. The paper focuses on technical issues and research needs in three major areas: (1) assessment of system integrity; (2) operation, maintenance, and rehabilitation; and (3) new construction. Many of the issues and needs discussed were identified at a USEPA sponsored experts workshop on infrastructure problems associated with wastewater collection systems. JF - Urban Water AU - Tafuri, AN AU - Selvakumar, A AD - US Environmental Protection Agency, National Risk Management Research Laboratory, Urban Watershed Management Branch, 2890 Woodbridge Avenue, Edison, NJ 08837, USA, tafuri.anthony@epa.gov Y1 - 2002/03// PY - 2002 DA - Mar 2002 SP - 21 EP - 29 VL - 4 IS - 1 SN - 1462-0758, 1462-0758 KW - USA KW - conferences KW - wastewater collection systems KW - Sustainability Science Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Urbanization KW - Sustainable development KW - Wastewater Collection KW - Freshwater KW - Wastewater treatment KW - Public health KW - Research Priorities KW - Economics KW - sustainability KW - Sewage treatment KW - Sanitary engineering KW - Wastewater Facilities KW - Rehabilitation KW - Conferences KW - Construction KW - Maintenance and repair KW - Water purification KW - Maintenance KW - Environmental protection KW - Performance Evaluation KW - Water management KW - Construction industry wastes KW - infrastructure KW - Technology KW - SW 3040:Wastewater treatment processes KW - Q2 09127:General papers on resources KW - M3 1010:Issues in Sustainable Development KW - Q5 08505:Prevention and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16135744?accountid=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=Urban+Water&rft.atitle=Wastewater+collection+system+infrastructure+research+needs+in+the+USA&rft.au=Tafuri%2C+AN%3BSelvakumar%2C+A&rft.aulast=Tafuri&rft.aufirst=AN&rft.date=2002-03-01&rft.volume=4&rft.issue=1&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=Urban+Water&rft.issn=14620758&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-07-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Urbanization; Water management; Maintenance and repair; Construction; Sewage treatment; Water purification; Wastewater treatment; Environmental protection; Sanitary engineering; Public health; Economics; Construction industry wastes; Sustainable development; sustainability; infrastructure; Maintenance; Technology; Research Priorities; Performance Evaluation; Wastewater Facilities; Conferences; Rehabilitation; Wastewater Collection; Freshwater ER - TY - JOUR T1 - Transformation and Transport of Vinclozolin from Soil to Air AN - 16132737; 5351405 AB - A laboratory chamber was designed and used to determine the headspace flux of the fungicide vinclozolin (3-(3,5-dichlorophenyl)-5-methyl-5-vinyl-oxzoli-dine-2,4-dione) and its three degradation products from chamber surfaces, 20-30 mesh Ottawa sand, and sterilized and nonsterile North Carolina Piedmont aquic hapludult soils following fungicide spray applications. Results indicate that vinclozolin and its degradation products are influenced by the presence of soil particles, fluid-filled pore space, soil organic matter and clay content, and microbes. The formation of 2-[(3,5-dichlorophenyl)-carbamoyl]oxy-2-methyl-3-butenoic acid ("M1"), was highest in pore water with elevated pH levels, and the degradation is enhanced by the presence of microbes. M1 was also released from lower pH soil pore water, especially when the fungicide was incorporated into the soil. Unlike prior studies of vinclozolin degradation in solutions, this study found that, in soil, both M1 and 3',5'-dichloro-2-hydroxy-2-methylbut-3-enanilide ("M2") can be produced in the same soil column. These results indicate that engineering controls and agricultural practices following application can affect the amount and pathway of vinclozolin's degradation. JF - Journal of Environmental Engineering AU - Vallero, DA AU - Peirce, J J AD - National Exposure Research Laboratory (MD-56), U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA, vallero.daniel@epa.gov Y1 - 2002/03// PY - 2002 DA - Mar 2002 SP - 261 EP - 268 VL - 128 IS - 3 SN - 0733-9372, 0733-9372 KW - vinclozolin KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Soil KW - Environmental pollution KW - USA, North Carolina KW - Clay KW - Fungicide spraying KW - Atmospheric pollution chemistry KW - Organic matter KW - Fungicides KW - Air quality KW - Agrochemicals KW - Dispersion KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16132737?accountid=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+Engineering&rft.atitle=Transformation+and+Transport+of+Vinclozolin+from+Soil+to+Air&rft.au=Vallero%2C+DA%3BPeirce%2C+J+J&rft.aulast=Vallero&rft.aufirst=DA&rft.date=2002-03-01&rft.volume=128&rft.issue=3&rft.spage=261&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Engineering&rft.issn=07339372&rft_id=info:doi/10.1061%2F%28ASCE%290733-9372%282002%29128%3A3%28261%29 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2003-01-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Environmental pollution; Fungicide spraying; Atmospheric pollution chemistry; Soil; Clay; Organic matter; Fungicides; Air quality; Agrochemicals; Dispersion; USA, North Carolina DO - http://dx.doi.org/10.1061/(ASCE)0733-9372(2002)128:3(261) ER - TY - JOUR T1 - Alterations in ovarian follicular progesterone secretion by elevated exposures to the drinking water disinfection by-product dibromoacetic acid: examination of the potential site(s) of impact along the steroidogenic pathway. AN - 71454020; 11836015 AB - Previous data from our laboratory indicated that the drinking water disinfection by-product, dibromoacetic acid (DBA), when applied in vitro to rat preovulatory follicles at a concentration consistent with blood levels found to disrupt estrous cyclicity, was able to block the stimulated secretion of progesterone. The present experiments focused on establishing a dose-response for such an effect and identifying the point(s)of impact of this compound along the steroidogenic pathway that underlie this suppression. Immature Sprague-Dawley rats were primed with PMSG on day 26 and killed 48 h later. Preovulatory follicles were removed and paired in culture with or without DBA (2-50 microg/ml) to reassess progesterone secretion under hCG-stimulated or baseline conditions. In addition, media supplemented with pregnenolone or 22(R)-hydroxycholesterol (22R-HC) were used to determine the effects of 50 microg/ml DBA on the initial steps leading to progesterone synthesis. Samples taken over the course of 24 h reaffirmed a significant DBA-associated suppression in baseline and stimulated progesterone release, while estradiol secretion was unaffected. This effect was mirrored by a reduction in follicular progesterone content in these DBA groups. The addition of pregnenolone eliminated this decrease, with the DBA-exposed follicles exhibiting a linear increase in progesterone release over the sampling period. The follicular progesterone content at 24 h showed that DBA treatment under pregnenolone supplementation caused marked elevations under both the hCG stimulated and non-stimulated conditions, something not reflected in the release data. Substitution of 22R-HC for pregnenolone eliminated the effect on baseline progesterone release, although the attenuation in stimulated secretion was still present. This suggests both an effect of DBA exposure on mitochondrial cholesterol transport by steroidogenic acute regulatory protein (StAR) and a possible impact on the receptor or postreceptor events triggered by hCG. JF - Toxicology AU - Goldman, Jerome M AU - Murr, Ashley S AD - Reproductive Toxicology Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA. goldman.jerome@epa.gov Y1 - 2002/02/28/ PY - 2002 DA - 2002 Feb 28 SP - 83 EP - 93 VL - 171 IS - 2-3 SN - 0300-483X, 0300-483X KW - Acetates KW - 0 KW - Chorionic Gonadotropin KW - Disinfectants KW - Gonadotropins, Equine KW - Hydroxycholesterols KW - 22-hydroxycholesterol KW - 17711-16-9 KW - Progesterone KW - 4G7DS2Q64Y KW - Estradiol KW - 4TI98Z838E KW - dibromoacetic acid KW - 631-64-1 KW - Pregnenolone KW - 73R90F7MQ8 KW - Index Medicus KW - Rats KW - Pregnenolone -- pharmacology KW - Animals KW - Rats, Sprague-Dawley KW - Fresh Water KW - Hydroxycholesterols -- pharmacology KW - Estradiol -- secretion KW - Time Factors KW - Organ Culture Techniques KW - Female KW - Disinfectants -- adverse effects KW - Acetates -- adverse effects KW - Ovarian Follicle -- secretion KW - Disinfectants -- toxicity KW - Acetates -- toxicity KW - Progesterone -- secretion UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71454020?accountid=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=Alterations+in+ovarian+follicular+progesterone+secretion+by+elevated+exposures+to+the+drinking+water+disinfection+by-product+dibromoacetic+acid%3A+examination+of+the+potential+site%28s%29+of+impact+along+the+steroidogenic+pathway.&rft.au=Goldman%2C+Jerome+M%3BMurr%2C+Ashley+S&rft.aulast=Goldman&rft.aufirst=Jerome&rft.date=2002-02-28&rft.volume=171&rft.issue=2-3&rft.spage=83&rft.isbn=&rft.btitle=&rft.title=Toxicology&rft.issn=0300483X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-03-11 N1 - Date created - 2002-02-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Normal gene expression in male F344 rat nasal transitional and respiratory epithelium. AN - 71764573; 12039058 AB - The nasal epithelium is an important target site for chemically-induced toxicity and carcinogenicity in rodents. Gene expression profiles were determined in order to provide normal baseline data for nasal transitional/respiratory epithelium from healthy rats. Cells lining the rat nasal passages were collected and gene expression analysis was performed using Clontech cDNA Rat Atlas 1.2 arrays (1185 genes). The percentages of genes within specific average expression ranges were 4.2% at 45,000-1000, 14.8% at 1000-200, 25.0% at 200-68, and 56.0% below 68. Nine out of a subset of ten genes were confirmed for relative signal intensity using quantitative real-time RT-PCR. The most highly expressed genes included those involved in phase I (e.g. cytochrome P450s) and phase II (e.g. glutathione S-transferases) xenobiotic metabolism, bioenergetics (e.g. cytochrome oxidase), osmotic balance (e.g. Na(+)/K(+) ATPase) and epithelial ionic homeostasis (e.g. ion channels). Such baseline data will contribute to further understanding the normal physiology of these cells and facilitate the interpretation of responses by the nasal epithelial cells to xenobiotic treatment or disease. JF - Gene AU - Hester, Susan D AU - Benavides, Gina B AU - Sartor, Maureen AU - Yoon, Lawrence AU - Wolf, Douglas C AU - Morgan, Kevin T AD - US EPA, Research Triangle Park, NC, USA. hester.susan@epamail.epa.gov Y1 - 2002/02/20/ PY - 2002 DA - 2002 Feb 20 SP - 301 EP - 310 VL - 285 IS - 1-2 SN - 0378-1119, 0378-1119 KW - DNA, Complementary KW - 0 KW - RNA KW - 63231-63-0 KW - Index Medicus KW - Rats KW - Animals KW - DNA, Complementary -- genetics KW - RNA -- metabolism KW - Oligonucleotide Array Sequence Analysis -- methods KW - Epithelium -- metabolism KW - Reverse Transcriptase Polymerase Chain Reaction KW - Male KW - RNA -- genetics KW - Gene Expression Profiling KW - Respiratory Mucosa -- metabolism KW - Rats, Inbred F344 -- genetics KW - Nasal Mucosa -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71764573?accountid=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=Gene&rft.atitle=Normal+gene+expression+in+male+F344+rat+nasal+transitional+and+respiratory+epithelium.&rft.au=Hester%2C+Susan+D%3BBenavides%2C+Gina+B%3BSartor%2C+Maureen%3BYoon%2C+Lawrence%3BWolf%2C+Douglas+C%3BMorgan%2C+Kevin+T&rft.aulast=Hester&rft.aufirst=Susan&rft.date=2002-02-20&rft.volume=285&rft.issue=1-2&rft.spage=301&rft.isbn=&rft.btitle=&rft.title=Gene&rft.issn=03781119&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-06-24 N1 - Date created - 2002-05-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Fish tissue quality in near-coastal areas of the Gulf of Mexico receiving point source discharges AN - 16131799; 5343554 AB - The objective of this study was to determine inorganic and organic contaminant concentrations in edible tissue of fish collected from eight coastal areas receiving wastewater discharges and from two reference locations. Trace metal residues were statistically similar regardless of the collection site. Zinc (100% detection in all samples), total mercury (100%), total arsenic (92%), copper (92%), and selenium (88%) were the more commonly detected trace metals. Mercury concentrations exceeded the Florida health-based standard of 0.5 mu g/g for limited fish consumption in 30% of the total samples and averaged 0.40 ( plus or minus 1 S.D. = 0.22, range less than or equal to 0.08 to 0.85) mu g/g wet weight. The average total PAH concentrations were 1.79 ( plus or minus 1.60) ng/g (reference areas) and 2.17 ( plus or minus 3.29) ng/g (wastewater-impacted areas). Pyrene was detected most frequently (63% of the total samples) and averaged 0.74 ( plus or minus 0.35) ng/g wet wt. The average total PCB concentrations were 4.8 ( plus or minus 7.1) ng/g (reference areas) and 31.6 ( plus or minus 31.3) ng/g (wastewater-impacted areas) Concentrations of dieldrin and cis-chlordane were approximately eight times greater, respectively, in fish collected from wastewater receiving waters, whereas total DDT and total pesticide concentrations were not elevated in the same areas. Concentrations of total PCBs and all chlorinated pesticides were below US health-based standards. The lack of a published reference data base for fish tissue quality in near-coastal areas of the Gulf of Mexico restricts an assessment of the environmental significance of results from this and similar studies investigating the fate of point source contaminants. JF - Science of the Total Environment AU - Lewis, MA AU - Scott, GI AU - Bearden, D W AU - Quarles, R L AU - Moore, J AU - Strozier, ED AU - Sivertsen, S K AU - Dias, A R AU - Sanders, M AD - United States Environmental Protection Agency, ORD, NHEERL, 1 Sabine Island Drive, Gulf Breeze, FL 32561, USA, lewis.michael@epa.gov Y1 - 2002/02/04/ PY - 2002 DA - 2002 Feb 04 SP - 249 EP - 261 VL - 284 IS - 1-3 SN - 0048-9697, 0048-9697 KW - polycyclic aromatic hydrocarbons KW - pyrene KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Toxicology Abstracts; Pollution Abstracts KW - Copper KW - Tissue Analysis KW - Public health KW - Mercury in fish KW - Aromatic hydrocarbons KW - Fish fillets KW - PCB KW - ASW, USA, Florida KW - Dieldrin KW - Metals in fish KW - Seawater pollution effects on marine life KW - Coastal waters KW - Trace Metals KW - Mexico Gulf KW - Water Pollution Effects KW - DDT KW - Mercury KW - Fish KW - Organic Compounds KW - Wastewater KW - Fishery products KW - Polychlorinated Biphenyls KW - Pollution effects KW - Pisces KW - Selenium KW - Zinc KW - Receiving Waters KW - Seafood KW - Polycyclic aromatic hydrocarbons KW - Arsenic KW - Chlordane KW - Fish contamination KW - Food contamination KW - ASW, Mexico Gulf KW - Bioaccumulation KW - Marine pollution KW - Pesticides KW - Wastewater discharges KW - Waste water KW - Trace metals KW - X 24120:Food, additives & contaminants KW - M2 551.46:General (551.46) KW - P 1000:MARINE POLLUTION KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution 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/16131799?accountid=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=Science+of+the+Total+Environment&rft.atitle=Fish+tissue+quality+in+near-coastal+areas+of+the+Gulf+of+Mexico+receiving+point+source+discharges&rft.au=Lewis%2C+MA%3BScott%2C+GI%3BBearden%2C+D+W%3BQuarles%2C+R+L%3BMoore%2C+J%3BStrozier%2C+ED%3BSivertsen%2C+S+K%3BDias%2C+A+R%3BSanders%2C+M&rft.aulast=Lewis&rft.aufirst=MA&rft.date=2002-02-04&rft.volume=284&rft.issue=1-3&rft.spage=249&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 - Date revised - 2002-07-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Arsenic; Pollution effects; Copper; Public health; Selenium; Bioaccumulation; Zinc; Pesticides; Mercury; Aromatic hydrocarbons; Seafood; Fish fillets; Trace metals; PCB; Fishery products; Marine pollution; Chlordane; Dieldrin; DDT; Food contamination; Coastal waters; Waste water; Mercury in fish; Fish contamination; Metals in fish; Seawater pollution effects on marine life; Wastewater discharges; Polycyclic aromatic hydrocarbons; Polychlorinated Biphenyls; Tissue Analysis; Trace Metals; Water Pollution Effects; Receiving Waters; Fish; Organic Compounds; Wastewater; Pisces; ASW, Mexico Gulf; ASW, USA, Florida; Mexico Gulf ER - TY - JOUR T1 - The effect of opening windows on air change rates in two homes. AN - 72917538; 15143789 AB - More than 300 air change rate experiments were completed in two occupied residences: a two-story detached house in Redwood City, CA, and a three-story townhouse in Reston, VA. A continuous monitor was used to measure the decay of SF6 tracer gas over periods of 1-18 hr. Each experiment first included a measurement of the air change rate with all exterior doors and windows closed (State 0), then a measurement with the single change from State 0 conditions of opening one or more windows. The overall average State 0 air change rate was 0.37 air changes per hour (hr(-1)) (SD = 0.10 hr(-1); n = 112) for the California house and 0.41 hr(-1) (SD = 0.19 hr(-1); n = 203) for the Virginia house. Indoor/outdoor temperature differences appeared to be responsible for the variation at the Virginia house of 0.15-0.85 hr(-1) when windows were closed. Opening a single window increased the State 0 air change rate by an amount roughly proportional to the width of the opening, reaching increments as high as 0.80 hr(-1) in the California house and 1.3 hr(-1) in the Virginia house. Multiple window openings increased the air change rate by amounts ranging from 0.10 to 2.8 hr(-1) in the California house and from 0.49 to 1.7 hr(-1) in the Virginia house. Compared with temperature differences and wind effects, opening windows produced the greatest increase in the air change rates measured in both homes. Results of this study indicate the importance of occupant window-opening behavior on a home's air change rate and the consequent need to incorporate this factor when estimating human exposure to indoor air pollutants. JF - Journal of the Air & Waste Management Association (1995) AU - Howard-Reed, Cynthia AU - Wallace, Lance A AU - Ott, Wayne R AD - National Exposure Research Laboratory, U.S. Environmental Protection Agency, Reston, Virginia, USA. chreed@nist.gov Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 147 EP - 159 VL - 52 IS - 2 SN - 1096-2247, 1096-2247 KW - Gases KW - 0 KW - Index Medicus KW - California KW - Gases -- analysis KW - Environmental Exposure KW - Algorithms KW - Air Pollution, Indoor -- analysis KW - Ventilation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72917538?accountid=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+effect+of+opening+windows+on+air+change+rates+in+two+homes.&rft.au=Howard-Reed%2C+Cynthia%3BWallace%2C+Lance+A%3BOtt%2C+Wayne+R&rft.aulast=Howard-Reed&rft.aufirst=Cynthia&rft.date=2002-02-01&rft.volume=52&rft.issue=2&rft.spage=147&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 - 2004-06-04 N1 - Date created - 2004-05-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Particulate matter inflammation and receptor sensitivity are target cell specific. AN - 71912043; 12122578 AB - The complexity of primary source particulate matter (PM) and the various cell types encountered by its inhalation raise the possibility that target cells are differentially activated. Since epithelial cells, which line the nasal-tracheal-bronchial airways, and sensory C fibers, which terminate throughout this epithelial layer, are initially targeted by inhaled PM, we compared their relative biological response in vitro to PM originating from volcanic (MSH), anthropogenic (diesel), residential (woodstove), urban ambient (St. Louis, Ottawa), and industrial emission (coal fly ash, CFA; residual oil fly ash, ROFA; oil fly ash, OFA) sources. Increases in intracellular calcium (i.e., [Ca(2+)](i)) are a second-messenger event that indicates cellular activation and signal transduction, in both nerve and epithelial cells. Single-cell calcium imaging recordings were taken of human bronchial epithelial cells (BEAS-2B) exposed to selected PM (50 microg/ml or 30 microg/cm(2)). These cells responded with variable increases in [Ca(2+)](i) ranging from abrupt increases, which returned to baseline upon washing of the cells, to oscillations of the [Ca(2+)](i) that did not wash out. Increases in [Ca(2+)](i) and inflammatory cytokine (i.e., interleukin 6, IL-6) release were measured in populations of BEAS-2B cells exposed to PM (50 microg/ml) and were shown to significantly correlate (r(2) =.80). BEAS-2B cells, stained histochemically with cobalt, displayed a concentration-dependent precipitation in response to acid pH and capsaicin, indicating the presence of acid-sensitive pathways (e.g., VR1 and acid-sensitive receptors). To demonstrate the relevance of these pathways to inflammatory cytokine (i.e., IL-6) release, BEAS-2B cells were pretreated (15 min) with antagonists to the vanilloid (VR1) receptor (i.e., capsazepine, CPZ) or acid-sensitive pathways (i.e., amiloride) before their exposure to the selected PM. A significant reduction of IL-6 release occurred in response to all PM, except for MSH and diesel exhaust. Dorsal root ganglia (DRG), which innervate the tracheal airways, were dissociated from fetal mice and pretreated with CPZ or amiloride before exposure (4 h) to the selected PM (50 microg/ml). Overall, significantly higher release occurred in PM-exposed sensory neurons relative to that of BEAS-2B epithelial cells. Although both CPZ and amiloride significantly reduced IL-6 release for all PM, the degree of inhibition was less for the PM-exposed DRG relative to BEAS-2B cells. These data show that differential increases in [Ca(2+)](i) and IL-6 release occur in BEAS-2B epithelial cells and DRG sensory neurons, when exposed to PM derived from different sources. The degree of this activation, however, depends not only on the source of the PM, but also on its cellular target. This differential sensitivity of target cells may contribute to the organism's overall inflammatory response to PM exposure. JF - Inhalation toxicology AU - Veronesi, Bellina AU - de Haar, Colin AU - Roy, Josee AU - Oortgiesen, Marga AD - U.S. Environmental Protection Agency, NHEERL, NTD MD 74B, Research Triangle Park, NC 27711, USA. veronesi.bellina@epamail.epa.gov Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 159 EP - 183 VL - 14 IS - 2 SN - 0895-8378, 0895-8378 KW - Air Pollutants KW - 0 KW - Interleukin-6 KW - Receptors, Drug KW - Capsaicin KW - S07O44R1ZM KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Calcium -- metabolism KW - Animals KW - Cell Survival -- drug effects KW - Humans KW - Mice KW - Interleukin-6 -- biosynthesis KW - Cell Line KW - Capsaicin -- pharmacology KW - Neurons -- metabolism KW - Neurons -- drug effects KW - Air Pollutants -- toxicity KW - Epithelial Cells -- metabolism KW - Epithelial Cells -- drug effects KW - Receptors, Drug -- drug effects KW - Ganglia, Spinal -- metabolism KW - Ganglia, Spinal -- pathology KW - Trachea -- pathology KW - Trachea -- metabolism KW - Ganglia, Spinal -- drug effects KW - Trachea -- drug effects KW - Air Pollutants -- chemistry KW - Receptors, Drug -- antagonists & inhibitors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71912043?accountid=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=Particulate+matter+inflammation+and+receptor+sensitivity+are+target+cell+specific.&rft.au=Veronesi%2C+Bellina%3Bde+Haar%2C+Colin%3BRoy%2C+Josee%3BOortgiesen%2C+Marga&rft.aulast=Veronesi&rft.aufirst=Bellina&rft.date=2002-02-01&rft.volume=14&rft.issue=2&rft.spage=159&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 - 2002-08-12 N1 - Date created - 2002-07-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Defining, explaining and understanding hormesis. AN - 71892997; 12102493 AB - A problem that hormesis has in being more scientifically accepted is (1) proving that only one mechanism accounts for both the 'beneficial' and 'toxic' parts of the biphasic dose-response curve and (2) giving substantial evidence against the interpretation that 'hormesis' is the sum of many different mechanisms which add up to either 'beneficial' or 'toxic' in two different parts of the dose-response curve. Hormesis may consist of a initial beneficial dose region where several mechanisms are operating (just for the sake of argument let us say 3 mechanisms) and the overall sum of these 3 mechanisms is 'beneficial' to the organism. At higher, toxic, doses, many more mechanisms are operating (just for the sake of argument let us say 8 mechanisms) and the sum of all these 8 mechanisms puts the organism in the 'toxic' part of the biphasic dose-response curve. JF - Human & experimental toxicology AU - Kitchin, K T AD - Environmental Carcinogenesis Division, US Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. kitchin.kirk@epa.gov Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 105 EP - 6; discussion 113-4 VL - 21 IS - 2 SN - 0960-3271, 0960-3271 KW - Receptors, Drug KW - 0 KW - Index Medicus KW - Chromosome Aberrations -- drug effects KW - No-Observed-Adverse-Effect Level KW - Receptors, Drug -- drug effects KW - Dose-Response Relationship, Drug KW - Chromosome Aberrations -- radiation effects KW - Receptors, Drug -- radiation effects KW - Humans KW - Risk Management KW - Dose-Response Relationship, Radiation KW - Models, Biological KW - Neoplasms -- etiology KW - Adaptation, Physiological -- drug effects KW - Adaptation, Physiological -- radiation effects KW - Adaptation, Physiological -- physiology KW - Homeostasis -- radiation effects KW - Homeostasis -- physiology KW - Homeostasis -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71892997?accountid=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=Defining%2C+explaining+and+understanding+hormesis.&rft.au=Kitchin%2C+K+T&rft.aulast=Kitchin&rft.aufirst=K&rft.date=2002-02-01&rft.volume=21&rft.issue=2&rft.spage=105&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 - 2003-02-07 N1 - Date created - 2002-07-09 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Comment On: Hum Exp Toxicol. 2002 Feb;21(2):91-7 [12102503] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effects of substrate salinity on early seedling survival and growth of Scirpus robustus Pursh and Spartina alterniflora Loisel. AN - 71522933; 11895013 AB - Rooted aquatic plants are being used increasingly to test the toxicity of sediments. However, effects of naturally occurring substrate constituents on most potential test species are not well understood even though their effects could affect the test results. The objective of this study was to determine the effect of substrate salinity (NaCl) on early seedling survival and growth of the emergent macrophytes, Scirpus robustus Pursh and Spartina alterniflora Loisel. Results of four 21- and 28-day toxicity tests, conducted in an artificial sediment, indicated interspecific differences in NaCl sensitivity when based on changes in shoot, root and whole plant dry-weight biomass. Concentrations of 7.8 g NaCl/l and 19.2 g NaCl/l first reduced early seedling biomass of S. robustus and S. alterniflora (P<0.05), respectively, when compared to plants grown in sediment containing no measurable salinity. Seedling survival was not affected at average concentrations of 17.5 g NaCl/l or less for S. robustus and 22.3 g NaCl/l or less for S. alterniflora. The results indicate that substrate salinity is an important consideration in the selection of test species for laboratory phytotoxicity tests conducted with estuarine sediments, particularly if determination of chronic toxicity attributable to anthropogenic contamination is the primary objective. JF - Ecotoxicology (London, England) AU - Lewis, Michael A AU - Weber, David E AD - U.S. Environmental Protection Agency, National Health and Environmental Effect, Gulf Ecology Division, Gulf Breeze, FL 32561-5299, USA. lewis.michael@epa.gov Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 19 EP - 26 VL - 11 IS - 1 SN - 0963-9292, 0963-9292 KW - Water Pollutants KW - 0 KW - Sodium Chloride KW - 451W47IQ8X KW - Index Medicus KW - Water Pollutants -- toxicity KW - Plant Roots -- growth & development KW - Toxicity Tests KW - Survival KW - Geologic Sediments -- chemistry KW - Poaceae -- growth & development KW - Cyperaceae -- growth & development KW - Sodium Chloride -- pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71522933?accountid=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+%28London%2C+England%29&rft.atitle=Effects+of+substrate+salinity+on+early+seedling+survival+and+growth+of+Scirpus+robustus+Pursh+and+Spartina+alterniflora+Loisel.&rft.au=Lewis%2C+Michael+A%3BWeber%2C+David+E&rft.aulast=Lewis&rft.aufirst=Michael&rft.date=2002-02-01&rft.volume=11&rft.issue=1&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=Ecotoxicology+%28London%2C+England%29&rft.issn=09639292&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-08-20 N1 - Date created - 2002-03-15 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Derivation of nutrient guidelines for streams in Victoria, Australia. AN - 71521488; 11893162 AB - Human induced increases to nutrient concentrations in streams have led to many agencies developing strategies and criteria for nutrient reduction. National or statewide guidelines are generally inappropriate, due to the natural variability in stream ecosystems within political boundaries. This study used an extant aquatic macroinvertebrate-based regionalisation for the state of Victoria, Australia, as the basis for defining regions of relatively homogeneous environmental character. This enabled the selection of ecologically-based regional reference sites and subsequent characterisation of the nutrient status of these sites. Using an extensive biological and nutrient data base for streams across the State, we calculated 50th and 75th percentile concentrations for reference sites within each region. Using these percentiles in conjunction with 'impact and recovery' studies, we defined nutrient guidelines for each region. Although the nutrient data largely supported the biological regionalisation, patterns in the nutrient data did require some minor modifications for the nutrient regions. Relatively unimpacted regions with reference sites in very good-to excellent-condition were assigned guidelines largely based on the 75th percentiles. The more impacted regions, where 'best available' reference sites were of poorer quality, were assigned guidelines based largely on the 50th percentiles. Professional judgement and known extents of impacts across each region provided important contributions to the decision-making process. The derived guideline concentrations are comparable to several cited in the literature and are proposed for use in monitoring, assessment and restoration targets. JF - Environmental monitoring and assessment AU - Newall, P AU - Tiller, D AD - Co-operative Research Centre for Freshwater Ecology, Environment Protection Authority, Melbourne, Victoria, Australia. peter.newall@epa.vic.gov.au Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 85 EP - 103 VL - 74 IS - 1 SN - 0167-6369, 0167-6369 KW - Water KW - 059QF0KO0R KW - Index Medicus KW - Environmental Monitoring KW - Animals KW - Victoria KW - Fresh Water -- chemistry KW - Fresh Water -- analysis KW - Population Dynamics KW - Guidelines as Topic KW - Quality Control KW - Water -- standards KW - Water Pollution -- analysis KW - Ecosystem KW - Water Pollution -- prevention & control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71521488?accountid=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+monitoring+and+assessment&rft.atitle=Derivation+of+nutrient+guidelines+for+streams+in+Victoria%2C+Australia.&rft.au=Newall%2C+P%3BTiller%2C+D&rft.aulast=Newall&rft.aufirst=P&rft.date=2002-02-01&rft.volume=74&rft.issue=1&rft.spage=85&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 completed - 2002-10-16 N1 - Date created - 2002-03-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Examples of the role of analytical chemistry in environmental risk management research. AN - 71492456; 11871689 AB - Analytical chemistry is an important tier of environmental protection and has been traditionally linked to compliance and/or exposure monitoring activities for environmental contaminants. The adoption of the risk management paradigm has led to special challenges for analytical chemistry applied to environmental risk analysis. Namely, methods developed for regulated contaminants may not be appropriate and/or applicable to risk management scenarios. This paper contains examples of analytical chemistry applied to risk management challenges broken down by the analytical approach and analyte for some selected work in our laboratory. Specific techniques discussed include stable association complex electrospray mass spectrometry (cESI-MS), gas chromatography-mass spectrometry (GC-MS), split-flow thin cell (SPLITT) fractionation and matrix-assisted laser desorption time of flight mass spectrometry (MALDI-ToF-MS). Specific analytes include haloacetic acids (HAA9), perchlorate, bromate, triazine degradation products, metal-contaminated colloids and Cryptosporidium parvum oocysts. JF - Journal of environmental monitoring : JEM AU - Magnuson, Matthew L AU - Kelty, Catherine A AU - Urbansky, Edward T AU - Owens, James H AU - Kelty, Keith C AU - Speth, Thomas F AD - US Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Cincinnati, OH 45268, USA. magnuson.matthew@epa.gov Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 102 EP - 108 VL - 4 IS - 1 SN - 1464-0325, 1464-0325 KW - Acetates KW - 0 KW - Colloids KW - Herbicides KW - Perchlorates KW - Sodium Compounds KW - Triazines KW - Water Pollutants KW - sodium perchlorate KW - 97F4MTY3VA KW - Index Medicus KW - Sodium Compounds -- analysis KW - Cryptosporidium parvum -- isolation & purification KW - Animals KW - Acetates -- analysis KW - Gas Chromatography-Mass Spectrometry -- methods KW - Herbicides -- analysis KW - Mass Spectrometry -- methods KW - Perchlorates -- analysis KW - Risk Assessment KW - Water Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71492456?accountid=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=Examples+of+the+role+of+analytical+chemistry+in+environmental+risk+management+research.&rft.au=Magnuson%2C+Matthew+L%3BKelty%2C+Catherine+A%3BUrbansky%2C+Edward+T%3BOwens%2C+James+H%3BKelty%2C+Keith+C%3BSpeth%2C+Thomas+F&rft.aulast=Magnuson&rft.aufirst=Matthew&rft.date=2002-02-01&rft.volume=4&rft.issue=1&rft.spage=102&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 - 2002-08-20 N1 - Date created - 2002-03-01 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The role of GC-MS and LC-MS in the discovery of drinking water disinfection by-products. AN - 71490761; 11871687 AB - Gas chromatography-mass spectrometry (GC-MS) has played a pivotal role in the discovery of disinfection by-products (DBPs) in drinking water. DBPs are formed when disinfectants, such as chlorine, ozone, chlorine dioxide or chloramine, react with natural organic matter in the water. The first DBP known--chloroform--was identified by Rook in 1974 using GC-MS. Soon thereafter, chloroform and other trihalomethanes were found to be ubiquitous in chlorinated drinking water. In 1976, the National Cancer Institute published results linking chloroform to cancer in laboratory animals, and an important public health issue was born. Mass spectrometry and, specifically, GC-MS became the key tool used for measuring these DBPs in water and for discovering other DBPs that were formed. Over the last 25 years, hundreds of DBPs have been identified, mostly through the use of GC-MS, which has spawned additional health effects studies and regulations. Early on, GC with low resolution electron ionization (EI)-MS was used, together with confirmation with chemical standards, for identification work. Later, researchers utilized chemical ionization (CI)-MS to provide molecular weight information and high resolution El-MS to aid in the determination of empirical formulae for the molecular ions and fragments. More recently, liquid chromatography-mass spectrometry (LC-MS) with either electrospray ionization (ESI) or atmospheric pressure chemical ionization (APCI) has been used to try to uncover highly polar DBPs that most experts believe have been missed by earlier GC-MS studies. Despite 25 years of research in the identification of new DBPs, new ones are being discovered every year, even for chlorine which has been the most extensively studied. JF - Journal of environmental monitoring : JEM AU - Richardson, Susan D AD - United States Environmental Protection Agency, National Exposure Research Laboratory, Athens, GA 30605, USA. richardson.susan@epa.gov Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 1 EP - 9 VL - 4 IS - 1 SN - 1464-0325, 1464-0325 KW - Disinfectants KW - 0 KW - Organic Chemicals KW - Index Medicus KW - Environmental Monitoring KW - Water Purification KW - Molecular Weight KW - Disinfectants -- chemistry KW - Water Supply KW - Disinfectants -- analysis KW - Chromatography, Gas -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71490761?accountid=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=The+role+of+GC-MS+and+LC-MS+in+the+discovery+of+drinking+water+disinfection+by-products.&rft.au=Richardson%2C+Susan+D&rft.aulast=Richardson&rft.aufirst=Susan&rft.date=2002-02-01&rft.volume=4&rft.issue=1&rft.spage=1&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 - 2002-08-20 N1 - Date created - 2002-03-01 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Appraisal of risks from nonoccupational exposure to chlorpyrifos. AN - 71449858; 11846640 AB - The toxicological database for chlorpyrifos indicates that humans are not more sensitive than laboratory animals to the toxic effects. Although an oral dose of 1 mg/kg-day resulted in measurable levels of chlorpyrifos in the blood, daily dosing at this level from 9 days to 2 years did not affect brain acetylcholinesterase activity (AChE) in laboratory animals. Developmental toxicity did not occur at doses below maternal toxicity. Most nonoccupational illnesses resulting from entry into areas treated with chlorpyrifos likely stem from odor, rather than the ability of the organophosphate to inhibit AChE. Based on biological monitoring studies, chronic aggregate nonoccupational exposures to chlorpyrifos ranged from 0.0002 mg/kg-day (adults) to 0.0005 mg/kg-day (infants and small children)-1 order of magnitude less than exposures estimated by standard procedures. Other biological monitoring data indicated that cumulative exposure to all organophosphate pesticides ranged from 0.0003 mg/kg-day (adults) to 0.003 mg/kg-day (children). Considering all these factors, the risks of aggregate, nonoccupational exposure to chlorpyrifos have been overstated by more than a 1000-fold. © 2002 Elsevier Science (USA). JF - Regulatory toxicology and pharmacology : RTP AU - Cochran, R C AD - Department of Pesticide Regulation, California Environmental Protection Agency, Sacramento, California 95812, USA. rcochran@cdpr.ca.gov Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 105 EP - 121 VL - 35 IS - 1 SN - 0273-2300, 0273-2300 KW - Cholinesterase Inhibitors KW - 0 KW - Insecticides KW - Acetylcholinesterase KW - EC 3.1.1.7 KW - Chlorpyrifos KW - JCS58I644W KW - Index Medicus KW - Acute Disease KW - Animals KW - Endpoint Determination KW - Humans KW - Child KW - Risk Assessment KW - Pregnancy KW - Child, Preschool KW - Infant KW - Animals, Newborn KW - Adult KW - Lethal Dose 50 KW - Female KW - Male KW - Insecticides -- toxicity KW - Brain -- enzymology KW - Cholinesterase Inhibitors -- toxicity KW - Chlorpyrifos -- toxicity KW - Brain -- drug effects KW - Acetylcholinesterase -- metabolism KW - Environmental Exposure KW - Insecticides -- pharmacokinetics KW - Chlorpyrifos -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71449858?accountid=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=Regulatory+toxicology+and+pharmacology+%3A+RTP&rft.atitle=Appraisal+of+risks+from+nonoccupational+exposure+to+chlorpyrifos.&rft.au=Cochran%2C+R+C&rft.aulast=Cochran&rft.aufirst=R&rft.date=2002-02-01&rft.volume=35&rft.issue=1&rft.spage=105&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 - 2002-04-02 N1 - Date created - 2002-02-15 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Use of mechanism-based structure-activity relationships analysis in carcinogenic potential ranking for drinking water disinfection by-products. AN - 71448502; 11834465 AB - Disinfection by-products (DBPs) are formed when disinfectants such as chlorine, chloramine, and ozone react with organic and inorganic matter in water. The observations that some DBPs such as trihalomethanes (THMs), di-/trichloroacetic acids, and 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (MX) are carcinogenic in animal studies have raised public concern over the possible adverse health effects of DBPs. To date, several hundred DBPs have been identified. To prioritize research efforts, an in-depth, mechanism-based structure-activity relationship analysis, supplemented by extensive literature search for genotoxicity and other data, was conducted for ranking the carcinogenic potential of DBPs that met the following criteria: a) detected in actual drinking water samples, b) have insufficient cancer bioassay data for risk assessment, and c) have structural features/alerts or short-term predictive assays indicative of carcinogenic potential. A semiquantitative concern rating scale of low, marginal, low-moderate, moderate, high-moderate, and high was used along with delineation of scientific rationale. Of the 209 DBPs analyzed, 20 were of priority concern with a moderate or high-moderate rating. Of these, four were structural analogs of MX and five were haloalkanes that presumably will be controlled by existing and future THM regulations. The other eleven DBPs, which included halonitriles (6), haloketones (2), haloaldehyde (1), halonitroalkane (1), and dialdehyde (1), are suitable priority candidates for future carcinogenicity testing and/or mechanistic studies. JF - Environmental health perspectives AU - Woo, Yin-Tak AU - Lai, David AU - McLain, Jennifer L AU - Manibusan, Mary Ko AU - Dellarco, Vicki AD - Office of Prevention, Pesticides, and Toxic Substances, Risk Assessment Division, U.S. Environmental Protection Agency, Washington, DC, USA. Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 75 EP - 87 VL - 110 Suppl 1 SN - 0091-6765, 0091-6765 KW - Carcinogens KW - 0 KW - Chlorine Compounds KW - Disinfectants KW - Trihalomethanes KW - Index Medicus KW - Animals KW - Mutagenicity Tests KW - DNA Damage KW - Humans KW - Chlorine Compounds -- adverse effects KW - Trihalomethanes -- adverse effects KW - Biological Assay KW - Water Purification KW - Animals, Laboratory KW - Structure-Activity Relationship KW - Risk Assessment KW - Disinfectants -- adverse effects KW - Disinfectants -- chemistry KW - Water Supply KW - Carcinogens -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71448502?accountid=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=Use+of+mechanism-based+structure-activity+relationships+analysis+in+carcinogenic+potential+ranking+for+drinking+water+disinfection+by-products.&rft.au=Woo%2C+Yin-Tak%3BLai%2C+David%3BMcLain%2C+Jennifer+L%3BManibusan%2C+Mary+Ko%3BDellarco%2C+Vicki&rft.aulast=Woo&rft.aufirst=Yin-Tak&rft.date=2002-02-01&rft.volume=110+Suppl+1&rft.issue=&rft.spage=75&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 - 2002-03-12 N1 - Date created - 2002-02-08 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Alcohol Clin Exp Res. 1999 Nov;23(11):1705-10 [10591585] Mutat Res. 1996 Sep;365(1-3):3-15 [8898986] Cancer Lett. 2000 Feb 28;149(1-2):69-76 [10737710] Chemosphere. 2000 Sep;41(6):843-8 [10864156] Toxicol In Vitro. 2000 Aug;14(4):387-99 [10906445] Environ Mol Mutagen. 2000;36(1):52-8 [10918360] Res Commun Chem Pathol Pharmacol. 1974 Aug;8(4):703-6 [4153624] Drug Alcohol Depend. 1979 Jan-Mar;4(1-2):91-4 [574448] Environ Mutagen. 1985;7(2):163-70 [3971956] Regul Toxicol Pharmacol. 1985 Sep;5(3):294-313 [3903881] Fundam Appl Toxicol. 1985 Dec;5(6 Pt 1):1065-74 [4092869] Fundam Appl Toxicol. 1986 Apr;6(3):447-53 [3699330] J Natl Cancer Inst. 1986 Oct;77(4):941-9 [3463822] Bull Environ Contam Toxicol. 1987 Sep;39(3):549-54 [3664010] Toxicol Appl Pharmacol. 1987 Oct;91(1):46-54 [3313810] Am J Public Health. 1997 Jul;87(7):1168-76 [9240108] Cancer Causes Control. 1997 Sep;8(5):738-44 [9328196] Carcinogenesis. 1997 Nov;18(11):2101-6 [9395208] Cancer Causes Control. 1996 Nov;7(6):596-604 [8932920] Toxicology. 1996 Dec 18;114(3):207-21 [8980710] Toxicol Appl Pharmacol. 1997 May;144(1):183-8 [9169083] J Natl Cancer Inst. 1997 Jun 18;89(12):848-56 [9196250] Epidemiology. 1998 Jan;9(1):21-8 [9430264] Epidemiology. 1998 Jan;9(1):29-35 [9430265] Environ Mol Mutagen. 1997;30(4):440-7 [9435885] Proc Soc Exp Biol Med. 1998 Mar;217(3):288-92 [9492337] Mutat Res. 1999 Feb 19;439(2):233-8 [10023070] Toxicology. 1999 May 3;134(1):1-8 [10413183] Environ Health Perspect. 1999 Feb;107 Suppl 1:207-17 [10229719] J Natl Cancer Inst. 1987 Dec;79(6):1269-79 [3480378] Mutat Res. 1988 Oct;206(2):177-82 [3050498] Toxicol Appl Pharmacol. 1989 Sep 1;100(2):271-9 [2781558] Cancer Lett. 1989 Dec;48(3):197-203 [2605568] Environ Mol Mutagen. 1991;17(1):40-8 [1991459] Chem Res Toxicol. 1991 Jan-Feb;4(1):35-40 [1912298] Mutagenesis. 1993 Mar;8(2):127-31 [8464381] Am J Epidemiol. 1993 Oct 1;138(7):492-501 [8213753] Mutagenesis. 1994 Jan;9(1):7-15 [8208133] Mutat Res. 1994 Nov;341(1):1-15 [7523939] Mutat Res. 1995 Feb;341(4):289-302 [7531288] Environ Mol Mutagen. 1994;24(4):317-24 [7851344] Environ Mol Mutagen. 1995;25(4):284-7 [7607182] Mol Carcinog. 1995 Feb;12(2):110-7 [7662116] Toxicol Lett. 1995 Sep;79(1-3):219-28 [7570659] Carcinogenesis. 1996 Jan;17(1):163-6 [8565128] Mutagenesis. 1996 Jan;11(1):95-100 [8671723] J Toxicol Environ Health A. 1999 Dec 24;58(8):485-507 [10632141] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effects of fractions from biodegraded Alaska North Slope crude oil on embryonic inland silversides, Menidia beryllina. AN - 71406713; 11815816 AB - Embryonic inland silversides, Meinida beryllina, were exposed to neutral, water-soluble fractions (WSFs) resulting from microbial degradation of artificially weathered Alaska North Slope (ANS) crude oil. Three individual microbes obtained from Prince William Sound, Alaska, and designated Phe#6 (enriched on phenanthrene), Hexaco#2 (enriched on the straight-chain alkane, hexacosane), and EI2V (grown by enrichment on Bushnell-Haas medium containing 0.2% pristane, a branched alkane) were used to individually biodegrade weathered ANS crude oil for 14 days in darkness in 20-L glass carboys containing nutrient enriched, sterilized 20% salinity sea water at 20 +/- 1 degrees C. Neutral WSFs resulting from biodegradation of ANS (lot 521) by each microbe were recovered and weighted. Neutral WSFs recovered were: 1.76 mg/L for Phe#6, 1.85 mg/L for Hexaco#2, and 13.02 mg/L for the EI2V microbe. Embryo toxicity and teratogenicity tests revealed that exposure of embryos to the WSFs from the EI2V incubation (with a total recovered neutral fraction approximately seven times greater than the Phe#6 and Hexaco#2 incubations) resulted in the most severe responses in craniofacial, cardiovascular, and skeletal organ systems. The total neutral WSFs recovered from the EI2V biodegradation of weathered ANS 521 were subfractionated into saturated (eluted with hexane), aromatic (eluted with CH2Cl2), polar (eluted with ethyl ether), and recombined (saturated + aromatic + polar) fractions. Developing fish embryos were then exposed to each subfraction and the recombined subfractions. The polar subfraction and recombined subfractions proved to be the most embryo toxic and teratogenic. They resulted in statistically significant (p < or = 0.05) responses (compared to controls) for craniofacial, cardiovascular, skeletal, and total severity effects in one or both tests with these subfractions. JF - Archives of environmental contamination and toxicology AU - Middaugh, D P AU - Chapman, P J AU - Shelton, M E AU - McKenney Jr, C L AU - Courtney, L A AD - U.S. Environmental Protection Agency, Gulf Ecology Division, 1 Sabine Island Drive, Gulf Breeze, Florida 32561, USA. dmidda@aol.com Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 236 EP - 243 VL - 42 IS - 2 SN - 0090-4341, 0090-4341 KW - Petroleum KW - 0 KW - Water Pollutants, Chemical KW - Index Medicus KW - Animals KW - Biodegradation, Environmental KW - Embryo, Nonmammalian -- drug effects KW - Embryonic and Fetal Development -- drug effects KW - Petroleum -- toxicity KW - Congenital Abnormalities -- veterinary KW - Water Pollutants, Chemical -- toxicity KW - Fishes KW - Congenital Abnormalities -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71406713?accountid=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+fractions+from+biodegraded+Alaska+North+Slope+crude+oil+on+embryonic+inland+silversides%2C+Menidia+beryllina.&rft.au=Middaugh%2C+D+P%3BChapman%2C+P+J%3BShelton%2C+M+E%3BMcKenney+Jr%2C+C+L%3BCourtney%2C+L+A&rft.aulast=Middaugh&rft.aufirst=D&rft.date=2002-02-01&rft.volume=42&rft.issue=2&rft.spage=236&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 - 2002-03-19 N1 - Date created - 2002-01-29 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Natural attenuation reactions at a uranium mill tailings site, Western U. S. A. AN - 52136209; 2002-016663 JF - Ground Water AU - Zhu, Chen AU - Anderson, Greg M AU - Burden, David S Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 5 EP - 13 PB - National Ground Water Association, Urbana, IL VL - 40 IS - 1 SN - 0017-467X, 0017-467X KW - United States KW - isotope fractionation KW - Bear Creek Uranium KW - isotopes KW - reclamation KW - seepage KW - remediation KW - ground water KW - attenuation KW - mitigation KW - radioactive isotopes KW - mass transfer KW - chemical composition KW - Powder River basin KW - pollutants KW - pollution KW - Natrona County Wyoming KW - aquifers KW - Wyoming KW - uranium ores KW - mathematical methods KW - metal ores KW - tailings KW - chemical fractionation KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52136209?accountid=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&rft.atitle=Natural+attenuation+reactions+at+a+uranium+mill+tailings+site%2C+Western+U.+S.+A.&rft.au=Zhu%2C+Chen%3BAnderson%2C+Greg+M%3BBurden%2C+David+S&rft.aulast=Zhu&rft.aufirst=Chen&rft.date=2002-02-01&rft.volume=40&rft.issue=1&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 33 N1 - PubXState - IL N1 - Document feature - illus. incl. 3 tables, sketch map N1 - SuppNotes - Includes appendix N1 - Last updated - 2016-11-17 N1 - CODEN - GRWAAP N1 - SubjectsTermNotLitGenreText - aquifers; attenuation; Bear Creek Uranium; chemical composition; chemical fractionation; ground water; isotope fractionation; isotopes; mass transfer; mathematical methods; metal ores; mitigation; Natrona County Wyoming; pollutants; pollution; Powder River basin; radioactive isotopes; reclamation; remediation; seepage; tailings; United States; uranium ores; Wyoming ER - TY - JOUR T1 - A combined GIS and HEC model for the analysis of the effect of urbanization on flooding; the Swan Creek watershed, Ohio AN - 52070589; 2002-064359 AB - This study investigates the effects of changes in land-use on the hydrology of the Swan Creek watershed in Lucas County, Ohio, over a thirty-year period. The study presents the GIS based runoff models and the HEC-RAS Flood analysis for the watershed. The runoff modeling was performed using a modification of the rational formula first proposed by Rossmiller in 1980. The C factor (land use) in the rational equation (Q = CIA) is modified to account for land use, soil type and slope factors. Four model runs for each of the land-use coverages were created based on the statistical precipitation recurrence intervals: P (sub 10) , P (sub 25) , P (sub 50) , P (sub 100) (a total of 12 model runs). The models differed only in the basic land-use classifications for each decade of interest. The runoff analysis predicts that increased runoff volumes in the watershed are directly related to increasing urbanization. The study showed that runoff volumes of a P (sub 100) storm in 1973 of certain sub-basins has the equivalent runoff of a P (sub 10) storm in 1995. The flood modeling was performed in the Army Corps of Engineer's Hydrologic Engineering Center's River Analysis System (HEC-RAS). Twelve model runs were also created in HEC-RAS to evaluate the effect of the land-use changes in each of the time periods for each of the storms. The study showed that flood extent of a P (sub 50) storm in 1973 across the watershed has the equivalent flood extent of a P (sub 10) storm in 1995. The flood modeling predicts that the Swan Creek hydrologic system responds more quickly and severely today to events that would have been smaller in the past. JF - Environmental & Engineering Geoscience AU - Wiles, Jason J AU - Levine, Norman S Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 47 EP - 61 PB - Association of Engineering Geologists and the Geological Society of America, College Station, TX VL - 8 IS - 1 SN - 1078-7275, 1078-7275 KW - United States KW - hydrology KW - geologic hazards KW - Hydrologic Engineering Center-River Analysis System model KW - surface water KW - statistical analysis KW - rivers and streams KW - watersheds KW - atmospheric precipitation KW - urbanization KW - HEC-RAS model KW - environmental effects KW - models KW - geographic information systems KW - runoff KW - Lucas County Ohio KW - floods KW - information systems KW - Swan Creek KW - Ohio KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52070589?accountid=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+%26+Engineering+Geoscience&rft.atitle=A+combined+GIS+and+HEC+model+for+the+analysis+of+the+effect+of+urbanization+on+flooding%3B+the+Swan+Creek+watershed%2C+Ohio&rft.au=Wiles%2C+Jason+J%3BLevine%2C+Norman+S&rft.aulast=Wiles&rft.aufirst=Jason&rft.date=2002-02-01&rft.volume=8&rft.issue=1&rft.spage=47&rft.isbn=&rft.btitle=&rft.title=Environmental+%26+Engineering+Geoscience&rft.issn=10787275&rft_id=info:doi/ L2 - http://eeg.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 40 N1 - PubXState - TX N1 - Document feature - illus. incl. 5 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - ENGEA9 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; environmental effects; floods; geographic information systems; geologic hazards; HEC-RAS model; Hydrologic Engineering Center-River Analysis System model; hydrology; information systems; Lucas County Ohio; models; Ohio; rivers and streams; runoff; statistical analysis; surface water; Swan Creek; United States; urbanization; watersheds ER - TY - JOUR T1 - Walnut Creek nonpoint source monitoring project; background and land use changes AN - 50893230; 2003-054477 JF - Technical Information Series - Iowa Geological Survey AU - Schilling, Keith E AU - Boekhoff, Janice L AU - Hubbard, T AU - Luzier, J Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 3 EP - 14 PB - Iowa Department of Natural Resources. Geological Survey Bureau, Des Moines, IA SN - 0270-9066, 0270-9066 KW - Walnut Creek KW - United States KW - soils KW - hydrology KW - best management practices KW - programs KW - fertilizers KW - land cover KW - monitoring KW - stream sediments KW - herbicides KW - drainage KW - watersheds KW - pollution KW - nonpoint sources KW - Iowa KW - sediments KW - pesticides KW - Jasper County Iowa KW - fluvial environment KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50893230?accountid=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+Information+Series+-+Iowa+Geological+Survey&rft.atitle=Walnut+Creek+nonpoint+source+monitoring+project%3B+background+and+land+use+changes&rft.au=Schilling%2C+Keith+E%3BBoekhoff%2C+Janice+L%3BHubbard%2C+T%3BLuzier%2C+J&rft.aulast=Schilling&rft.aufirst=Keith&rft.date=2002-02-01&rft.volume=&rft.issue=&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Technical+Information+Series+-+Iowa+Geological+Survey&rft.issn=02709066&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 - 10 N1 - PubXState - IA N1 - Document feature - 5 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - best management practices; drainage; fertilizers; fluvial environment; herbicides; hydrology; Iowa; Jasper County Iowa; land cover; land use; monitoring; nonpoint sources; pesticides; pollution; programs; sediments; soils; stream sediments; United States; Walnut Creek; watersheds ER - TY - JOUR T1 - NO (sub 3) -N, Cl and SO (sub 4) concentrations, loads and trends in surface water in Walnut and Squaw Creek watersheds AN - 50892600; 2003-054478 JF - Technical Information Series - Iowa Geological Survey AU - Schilling, Keith E AU - Boekhoff, Janice L AU - Hubbard, T AU - Luzier, J Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 15 EP - 30 PB - Iowa Department of Natural Resources. Geological Survey Bureau, Des Moines, IA SN - 0270-9066, 0270-9066 KW - Walnut Creek KW - United States KW - hydrology KW - chlorine KW - water quality KW - concentration KW - sulfate ion KW - patterns KW - surface water KW - statistical analysis KW - halogens KW - watersheds KW - Marion County Iowa KW - Iowa KW - hydrochemistry KW - variations KW - nitrogen KW - Squaw Creek KW - chloride ion KW - nitrate ion KW - Jasper County Iowa KW - geochemistry KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50892600?accountid=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+Information+Series+-+Iowa+Geological+Survey&rft.atitle=NO+%28sub+3%29+-N%2C+Cl+and+SO+%28sub+4%29+concentrations%2C+loads+and+trends+in+surface+water+in+Walnut+and+Squaw+Creek+watersheds&rft.au=Schilling%2C+Keith+E%3BBoekhoff%2C+Janice+L%3BHubbard%2C+T%3BLuzier%2C+J&rft.aulast=Schilling&rft.aufirst=Keith&rft.date=2002-02-01&rft.volume=&rft.issue=&rft.spage=15&rft.isbn=&rft.btitle=&rft.title=Technical+Information+Series+-+Iowa+Geological+Survey&rft.issn=02709066&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 - 13 N1 - PubXState - IA N1 - Document feature - illus. incl. 6 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chloride ion; chlorine; concentration; geochemistry; halogens; hydrochemistry; hydrology; Iowa; Jasper County Iowa; Marion County Iowa; nitrate ion; nitrogen; patterns; Squaw Creek; statistical analysis; sulfate ion; surface water; United States; variations; Walnut Creek; water quality; watersheds ER - TY - JOUR T1 - Herbicide concentrations, loads and trends in surface water in Walnut and Squaw Creek watersheds AN - 50890482; 2003-054479 JF - Technical Information Series - Iowa Geological Survey AU - Schilling, Keith E AU - Boekhoff, Janice L AU - Hubbard, T AU - Luzier, J Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 31 EP - 43 PB - Iowa Department of Natural Resources. Geological Survey Bureau, Des Moines, IA SN - 0270-9066, 0270-9066 KW - United States KW - watersheds KW - Iowa KW - environmental analysis KW - variations KW - triazines KW - geochemistry KW - Walnut Creek KW - hydrology KW - concentration KW - patterns KW - pollutants KW - herbicides KW - surface water KW - statistical analysis KW - pollution KW - Marion County Iowa KW - hydrochemistry KW - organic compounds KW - Squaw Creek KW - atrazine KW - runoff KW - pesticides KW - Jasper County Iowa KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50890482?accountid=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+Information+Series+-+Iowa+Geological+Survey&rft.atitle=Herbicide+concentrations%2C+loads+and+trends+in+surface+water+in+Walnut+and+Squaw+Creek+watersheds&rft.au=Schilling%2C+Keith+E%3BBoekhoff%2C+Janice+L%3BHubbard%2C+T%3BLuzier%2C+J&rft.aulast=Schilling&rft.aufirst=Keith&rft.date=2002-02-01&rft.volume=&rft.issue=&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Technical+Information+Series+-+Iowa+Geological+Survey&rft.issn=02709066&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 - 9 N1 - PubXState - IA N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atrazine; concentration; environmental analysis; geochemistry; herbicides; hydrochemistry; hydrology; Iowa; Jasper County Iowa; Marion County Iowa; organic compounds; patterns; pesticides; pollutants; pollution; runoff; Squaw Creek; statistical analysis; surface water; triazines; United States; variations; Walnut Creek; watersheds ER - TY - JOUR T1 - Reports on the Walnut Creek watershed monitoring project, Jasper County, Iowa; water years 1995-2000 AN - 50889626; 2003-054476 JF - Technical Information Series - Iowa Geological Survey AU - Schilling, Keith E AU - Boekhoff, Janice L AU - Hubbard, T AU - Luzier, J Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 75 PB - Iowa Department of Natural Resources. Geological Survey Bureau, Des Moines, IA SN - 0270-9066, 0270-9066 KW - United States KW - fertilizers KW - rivers and streams KW - watersheds KW - nonpoint sources KW - Iowa KW - ground water KW - agrochemicals KW - sediments KW - coliform bacteria KW - ecology KW - Walnut Creek KW - hydrology KW - programs KW - monitoring KW - pollutants KW - surface water KW - agriculture KW - pollution KW - biota KW - nutrients KW - bacteria KW - pesticides KW - Jasper County Iowa KW - aquatic environment KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50889626?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=Schilling%2C+Keith+E%3BBoekhoff%2C+Janice+L%3BHubbard%2C+T%3BLuzier%2C+J&rft.aulast=Schilling&rft.aufirst=Keith&rft.date=2002-02-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Reports+on+the+Walnut+Creek+watershed+monitoring+project%2C+Jasper+County%2C+Iowa%3B+water+years+1995-2000&rft.title=Reports+on+the+Walnut+Creek+watershed+monitoring+project%2C+Jasper+County%2C+Iowa%3B+water+years+1995-2000&rft.issn=02709066&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - IA N1 - Document feature - illus. incl. sketch maps N1 - SuppNotes - Individual reports within scope are cited separately N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - agriculture; agrochemicals; aquatic environment; bacteria; biota; coliform bacteria; ecology; fertilizers; ground water; hydrology; Iowa; Jasper County Iowa; land use; monitoring; nonpoint sources; nutrients; pesticides; pollutants; pollution; programs; rivers and streams; sediments; surface water; United States; Walnut Creek; watersheds ER - TY - JOUR T1 - Summary of field measurements in surface water in Walnut and Squaw Creek watersheds AN - 50887912; 2003-054481 JF - Technical Information Series - Iowa Geological Survey AU - Boekhoff, Janice L AU - Schilling, Keith E AU - Hubbard, T AU - Luzier, J Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 53 EP - 58 PB - Iowa Department of Natural Resources. Geological Survey Bureau, Des Moines, IA SN - 0270-9066, 0270-9066 KW - Walnut Creek KW - United States KW - hydrology KW - water quality KW - pollutants KW - surface water KW - watersheds KW - pollution KW - nonpoint sources KW - Marion County Iowa KW - Iowa KW - hydrochemistry KW - environmental analysis KW - measurement KW - Squaw Creek KW - transport KW - sampling KW - seasonal variations KW - Jasper County Iowa KW - geochemistry KW - field studies KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50887912?accountid=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+Information+Series+-+Iowa+Geological+Survey&rft.atitle=Summary+of+field+measurements+in+surface+water+in+Walnut+and+Squaw+Creek+watersheds&rft.au=Boekhoff%2C+Janice+L%3BSchilling%2C+Keith+E%3BHubbard%2C+T%3BLuzier%2C+J&rft.aulast=Boekhoff&rft.aufirst=Janice&rft.date=2002-02-01&rft.volume=&rft.issue=&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Technical+Information+Series+-+Iowa+Geological+Survey&rft.issn=02709066&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 - IA N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - environmental analysis; field studies; geochemistry; hydrochemistry; hydrology; Iowa; Jasper County Iowa; Marion County Iowa; measurement; nonpoint sources; pollutants; pollution; sampling; seasonal variations; Squaw Creek; surface water; transport; United States; Walnut Creek; water quality; watersheds ER - TY - JOUR T1 - Fecal coliform concentrations and trends in surface water in Walnut and Squaw Creek watersheds AN - 50887409; 2003-054480 JF - Technical Information Series - Iowa Geological Survey AU - Schilling, Keith E AU - Boekhoff, Janice L AU - Hubbard, T AU - Luzier, J Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 45 EP - 51 PB - Iowa Department of Natural Resources. Geological Survey Bureau, Des Moines, IA SN - 0270-9066, 0270-9066 KW - Walnut Creek KW - United States KW - hydrology KW - water quality KW - concentration KW - patterns KW - pollutants KW - surface water KW - statistical analysis KW - agriculture KW - watersheds KW - pollution KW - nonpoint sources KW - Marion County Iowa KW - Iowa KW - variations KW - Squaw Creek KW - bacteria KW - coliform bacteria KW - Jasper County Iowa KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50887409?accountid=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+Information+Series+-+Iowa+Geological+Survey&rft.atitle=Fecal+coliform+concentrations+and+trends+in+surface+water+in+Walnut+and+Squaw+Creek+watersheds&rft.au=Schilling%2C+Keith+E%3BBoekhoff%2C+Janice+L%3BHubbard%2C+T%3BLuzier%2C+J&rft.aulast=Schilling&rft.aufirst=Keith&rft.date=2002-02-01&rft.volume=&rft.issue=&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Technical+Information+Series+-+Iowa+Geological+Survey&rft.issn=02709066&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 - 5 N1 - PubXState - IA N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - agriculture; bacteria; coliform bacteria; concentration; hydrology; Iowa; Jasper County Iowa; land use; Marion County Iowa; nonpoint sources; patterns; pollutants; pollution; Squaw Creek; statistical analysis; surface water; United States; variations; Walnut Creek; water quality; watersheds ER - TY - JOUR T1 - Locating abandoned oil wells using geophysical methods near Glasgow, Kentucky AN - 50885598; 2005-046564 JF - Proceedings of SAGEEP AU - Sandberg, Stewart K AU - Newhart, Gary AU - Phillips, Robert AU - Powell, Greg AU - Anonymous Y1 - 2002/02// PY - 2002 DA - February 2002 EP - P9 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 2002 KW - United States KW - geophysical surveys KW - Boyds Creek Field KW - pollutants KW - drainage KW - surface water KW - geophysical methods KW - pollution KW - magnetic anomalies KW - abandoned oil wells KW - Barren County Kentucky KW - petroleum products KW - Glasgow Kentucky KW - ground water KW - oil wells KW - detection KW - transport KW - identification KW - electromagnetic methods KW - surveys KW - Kentucky KW - geophysical profiles KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50885598?accountid=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=Locating+abandoned+oil+wells+using+geophysical+methods+near+Glasgow%2C+Kentucky&rft.au=Sandberg%2C+Stewart+K%3BNewhart%2C+Gary%3BPhillips%2C+Robert%3BPowell%2C+Greg%3BAnonymous&rft.aulast=Sandberg&rft.aufirst=Stewart&rft.date=2002-02-01&rft.volume=2002&rft.issue=&rft.spage=&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 environmental and engineering problems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 1 N1 - PubXState - CO N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - abandoned oil wells; Barren County Kentucky; Boyds Creek Field; detection; drainage; electromagnetic methods; geophysical methods; geophysical profiles; geophysical surveys; Glasgow Kentucky; ground water; identification; Kentucky; magnetic anomalies; oil wells; petroleum products; pollutants; pollution; surface water; surveys; transport; United States ER - TY - JOUR T1 - Biologic effects of oil fly ash. AN - 21257701; 11702272 AB - Epidemiologic studies have demonstrated increased human morbidity and mortality with elevations in the concentration of ambient air particulate matter (PM). Fugitive fly ash from the combustion of oil and residual fuel oil significantly contributes to the ambient air particle burden. Residual oil fly ash (ROFA) is remarkable in the capacity to provoke injury in experimental systems. The unique composition of this emission source particle makes it particularly useful as a surrogate for ambient air PM in studies of biologic effects testing the hypothesis that metals mediate the biologic effects of air pollution particles. A majority of the in vitro and animal model investigations support the postulate that transition metals present in ROFA (especially vanadium) participate in Fenton-like chemical reactions to produce reactive oxygen species. This is associated with tyrosine phosphorylation, nuclear factor kappa B and other transcription factor activation, induction of inflammatory mediator expression, and inflammatory lung injury. It is also evident that vanadium accounts for a significant portion of the biologic activity of ROFA. The extrapolation of this body of investigation on ROFA to the field of ambient air PM is difficult, as particles in numerous environments have such small amounts of vanadium. JF - Environmental Health Perspectives AU - Ghio, Andrew J AU - Silbajoris, Robert AU - Carson, Johnny L AU - Samet, James M AD - National Health and Environmental Effects Research Laboratory, Office for Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA., ghio.andy@epa.gov Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 89 EP - 94 PB - US Government Printing Office, Superintendent of Documents, P.O. Box 371954 Pittsburgh PA 15250-7954 USA VL - 110 IS - Suppl 1 SN - 0091-6765, 0091-6765 KW - Pollution Abstracts; Environment Abstracts KW - Vanadium KW - Mortality KW - Metals KW - Injuries KW - Fuels KW - Animal models KW - Fly ash KW - Pollution effects KW - Particulates KW - Morbidity KW - Combustion KW - Air pollution KW - Oil KW - Oxygen KW - Lung KW - Chemical reactions KW - Nuclear fuels KW - Emissions KW - P 0000:AIR POLLUTION KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21257701?accountid=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+Health+Perspectives&rft.atitle=Biologic+effects+of+oil+fly+ash.&rft.au=Ghio%2C+Andrew+J%3BSilbajoris%2C+Robert%3BCarson%2C+Johnny+L%3BSamet%2C+James+M&rft.aulast=Ghio&rft.aufirst=Andrew&rft.date=2002-02-01&rft.volume=110&rft.issue=Suppl+1&rft.spage=89&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 - Vanadium; Metals; Mortality; Injuries; Fuels; Animal models; Pollution effects; Fly ash; Particulates; Morbidity; Combustion; Oil; Air pollution; Oxygen; Chemical reactions; Lung; Nuclear fuels; Emissions ER - TY - JOUR T1 - Geographic targeting of increases in nutrient export due to future urbanization AN - 19930568; 5350645 AB - Urbanization replaces the extant natural resource base (e.g., forests, wetlands) with an infrastructure that is capable of supporting humans. One ecological consequence of urbanization is higher concentrations of nitrogen (N) and phosphorous (P) in streams, lakes, and estuaries. When received in excess, N and P are considered pollutants. Continuing urbanization will change the relative distribution of extant natural resources. Characteristics of the landscape can shape its response to disturbances such as urbanization. Changes in landscape characteristics across a region create a geographic pattern of vulnerability to increased N and P as a result of urbanization. We linked nutrient-export risk and urbanization models in order to identify areas most vulnerable to increases in nutrient-export risk due to projected urbanization. A risk-based model of N and P export exceeding specified thresholds was developed based on the extant distribution of forest, agriculture, and urban land cover. An empirical model of urbanization was used to increase urban land cover at the expense of forest and agriculture. The modeled (future) land cover was input into the N and P export risk model, and the "before" and "after" estimates of N and P export were compared to identify the areas most vulnerable to change. Increase in N and P export had to be equal to or greater than the accumulated uncertainties in the nutrient-export risk and urbanization models for an area to be considered vulnerable. The areas most vulnerable to increased N and P export were not spatially coincident with the areas of greatest urbanization. Vulnerability also depended on the geographic distribution of forest and agriculture. In general, the areas most vulnerable to increased N exports were where the modeled urbanization rate was at least 20% and the amount of forest was about 6 times greater than the amount of agriculture. For P, the most vulnerable areas were where the modeled urbanization rate was at least 20% and the amount of forest was about 2 times greater than the amount of agriculture. Vulnerability to increased N and P export was the result of two interacting spatial patterns, urbanization and the extant distribution of land cover. It could not be predicted from either alone. JF - Ecological Applications AU - Wickham, J D AU - O'Neill, R V AU - Riitters, KH AU - Smith, E R AU - Wade, T G AU - Jones, K B AD - U.S. Environmental Protection Agency (MD-56), National Exposure Research Laboratory, Research Triangle Park, North Carolina 27711, USA Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 93 EP - 106 PB - Ecological Society of America VL - 12 IS - 1 SN - 1051-0761, 1051-0761 KW - Sustainability Science Abstracts; Pollution Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Human Population; Ecology Abstracts KW - Agriculture KW - Agricultural Runoff KW - Nutrient enrichment KW - Urbanization KW - Water Pollution Sources KW - Phosphorus KW - Forests KW - Nutrients KW - Nutrient cycles KW - Risks KW - Models KW - Human impact KW - Pollutants KW - Distribution KW - Wetlands KW - Geographical variations KW - Population-environment relations KW - Agricultural runoff KW - Urban environments KW - Estuaries KW - Water pollution KW - Natural resources KW - Nutrients (mineral) KW - Nitrogen KW - D 04695:Urban environments KW - M3 1010:Issues in Sustainable Development KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - D 04003:Modeling, mathematics, computer applications KW - Q5 08522:Protective measures and control KW - M1 350:Monitoring and Quantitating Anthropogenic Processes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19930568?accountid=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+Applications&rft.atitle=Geographic+targeting+of+increases+in+nutrient+export+due+to+future+urbanization&rft.au=Wickham%2C+J+D%3BO%27Neill%2C+R+V%3BRiitters%2C+KH%3BSmith%2C+E+R%3BWade%2C+T+G%3BJones%2C+K+B&rft.aulast=Wickham&rft.aufirst=J&rft.date=2002-02-01&rft.volume=12&rft.issue=1&rft.spage=93&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 - 2002-07-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Pollutants; Urbanization; Natural resources; Wetlands; Nutrients (mineral); Nutrient cycles; Risks; Agriculture; Nutrient enrichment; Phosphorus; Forests; Nutrients; Human impact; Models; Population-environment relations; Geographical variations; Nitrogen; Urban environments; Agricultural runoff; Water pollution; Agricultural Runoff; Water Pollution Sources; Estuaries; Distribution ER - TY - JOUR T1 - Regional characteristics of nutrient concentrations in streams and their application to nutrient criteria development AN - 19924371; 5358186 AB - In order to establish meaningful nutrient criteria, consideration must be given to the spatial variations in geographic phenomena that cause or reflect differences in nutrient concentrations in streams. Regional differences in stream nutrient concentrations were illustrated using stream data collected from 928 nonpoint-source watersheds distributed throughout the country and sampled as part of the U.S. EPA National Eutrophication Survey (NES). Spatial patterns in the differences were compared and found to correspond with an a priori regional classification system based on regional patterns in landscape attributes associated with variation in nutrient concentrations. The classification consists of 14 regions composed of aggregations of the 84 U.S. EPA Level III Ecoregions. The primary distinguishing characteristics of each region and the factors associated with variability in water quality characteristics are presented. The use of the NES and many other extant monitoring data sets to develop regional reference conditions for nutrient concentrations in streams is discouraged on the basis of sample representation. The necessity that all sites used in such an effort be regionally representative and consistently screened for least possible impact is emphasized. These sampling issues are rigorously addressed by the U.S. EPA Environmental Monitoring and Assessment Program (EMAP). A case-study, using EMAP data collected from the Central and Eastern Forested Uplands, demonstrates how regional reference conditions and draft nutrient criteria could be developed. JF - Journal of the American Water Resources Association AU - Rohm, C M AU - Omernik, JM AU - Woods, A J AU - Stoddard, J L AD - Dynamac Corporation, 200 SW 35th Street, Corvallis, OR 97333, USA, omernik@mail.cor.epa.gov Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 213 EP - 240 VL - 38 IS - 1 SN - 1093-474X, 1093-474X KW - USA KW - Pollution Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Classification systems KW - water quality KW - Regional Analysis KW - Eutrophication KW - Pollution (Nonpoint sources) KW - nutrient concentrations KW - Nutrients KW - Freshwater KW - Water quality KW - Watersheds KW - Streams KW - spatial distribution KW - Catchment areas KW - Environmental monitoring KW - Geochemistry KW - Landscape KW - Nonpoint Pollution Sources KW - Streams (in natural channels) KW - EPA KW - classification KW - Nutrients (mineral) KW - SW 0880:Chemical processes KW - Q1 08463:Habitat community studies KW - P 2000:FRESHWATER POLLUTION KW - Q2 09181:General KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19924371?accountid=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=Regional+characteristics+of+nutrient+concentrations+in+streams+and+their+application+to+nutrient+criteria+development&rft.au=Rohm%2C+C+M%3BOmernik%2C+JM%3BWoods%2C+A+J%3BStoddard%2C+J+L&rft.aulast=Rohm&rft.aufirst=C&rft.date=2002-02-01&rft.volume=38&rft.issue=1&rft.spage=213&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 - 2002-08-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Classification systems; Eutrophication; Nutrients (mineral); Watersheds; Water quality; water quality; spatial distribution; EPA; Landscape; classification; nutrient concentrations; Streams; Catchment areas; Pollution (Nonpoint sources); Geochemistry; Nutrients; Streams (in natural channels); Regional Analysis; Nonpoint Pollution Sources; Freshwater ER - TY - JOUR T1 - A mail survey approach to watershed condition assessment AN - 19911800; 5366132 AB - Aquatic resource monitoring attempts to assess the condition of aquatic habitat and organisms. Assessments require that disturbances from human activities be identified, quantified and ordered along a gradient for interpreting biological response. An index of relative risk to aquatic systems was developed based on identifying and prioritizing stream-reach and watershed stressors. Mail surveys were sent to natural resource experts (county extension agents, NRCS employees) familiar with the targeted watersheds, to collect data for assessment of 25 watersheds in the Mid-Appalachian region of the United States. A 56% correspondence was found between this method and another approach when scoring identical sites. Scoring differences resulted from discrepancies in available data between the two methods. Scores were consistent with water chemistry and benthic macroinvertebrate measures of stream condition and required less time to develop for ranking watersheds than the second method. The mail survey approach is readily transferable to other regions. JF - Journal of Soil and Water Conservation AU - Lomnicky, G A AU - Barker, J R AU - Bryce, SA AD - Environmental Protection Agency (EPA), National Health and Environmental Effects Research Laboratory, Western Ecology Division Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 1 EP - 6 VL - 57 IS - 1 SN - 0022-4561, 0022-4561 KW - USA, Appalachian Mts. KW - Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts KW - Environmental Effects KW - Ecosystems KW - Environmental Quality KW - Water conservation KW - Man-induced effects KW - Freshwater KW - Watersheds KW - Water quality KW - Streams KW - Soil KW - Personnel KW - Surface water pollution KW - Data Collections KW - water chemistry KW - Water Quality KW - Surveys KW - River basins KW - Habitat KW - Aquatic environment KW - USA KW - Aquatic Habitats KW - Natural resources KW - Human factors KW - Monitoring KW - Zoobenthos KW - Water chemistry KW - M2 556.53:Rivers, Streams, Canals (556.53) KW - P 2000:FRESHWATER POLLUTION KW - SW 3010:Identification of pollutants KW - Q2 09105:Research programmes and expeditions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19911800?accountid=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+Soil+and+Water+Conservation&rft.atitle=A+mail+survey+approach+to+watershed+condition+assessment&rft.au=Lomnicky%2C+G+A%3BBarker%2C+J+R%3BBryce%2C+SA&rft.aulast=Lomnicky&rft.aufirst=G&rft.date=2002-02-01&rft.volume=57&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Journal+of+Soil+and+Water+Conservation&rft.issn=00224561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-07-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Personnel; Natural resources; Water conservation; Man-induced effects; River basins; Habitat; Water quality; Zoobenthos; Watersheds; Water chemistry; Surface water pollution; Soil; water chemistry; Human factors; Streams; Aquatic environment; Environmental Effects; Ecosystems; Aquatic Habitats; Environmental Quality; Water Quality; Surveys; Monitoring; Data Collections; USA; Freshwater ER - TY - JOUR T1 - A modified digestion procedure for analysing silver in environmental water samples AN - 18911502; 5399077 AB - The low recovery of silver in the analysis of environmental water samples has been experienced for a long time. The major cause was postulated to be due to chloride in the sample that causes precipitation of silver chloride. A modified procedure in which the sample was taken to dryness during acid digestion was proposed to remove chloride. Analysing a surface water sample and a photographic wastewater sample validated this modified procedure. JF - Analyst (Cambridge UK) AU - Yang, X J AU - Foley, R AU - Low, GK-C AD - Environmental Chemistry Section, New South Wales Environment Protection Authority, PO Box 29, Lidcombe, New South Wales 1825, Australia, yangj@epa.nsw.gov.au Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 315 EP - 318 VL - 127 IS - 2 SN - 0003-2654, 0003-2654 KW - Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - Chemical analysis (see also Individual techniques) KW - Heavy metals KW - Chlorides KW - Pollution effects KW - Freshwater KW - Water analysis KW - Chemical precipitation KW - Chemical reactions KW - Precipitation (Chemical) KW - Analytical techniques KW - Silver KW - Q2 09184:Composition of water KW - Q5 08502:Methods and instruments KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18911502?accountid=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=Analyst+%28Cambridge+UK%29&rft.atitle=A+modified+digestion+procedure+for+analysing+silver+in+environmental+water+samples&rft.au=Yang%2C+X+J%3BFoley%2C+R%3BLow%2C+GK-C&rft.aulast=Yang&rft.aufirst=X&rft.date=2002-02-01&rft.volume=127&rft.issue=2&rft.spage=315&rft.isbn=&rft.btitle=&rft.title=Analyst+%28Cambridge+UK%29&rft.issn=00032654&rft_id=info:doi/10.1039%2Fb109959k LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-12-21 N1 - SubjectsTermNotLitGenreText - Chemical precipitation; Chemical reactions; Heavy metals; Analytical techniques; Chlorides; Pollution effects; Silver; Water analysis; Chemical analysis (see also Individual techniques); Precipitation (Chemical); Freshwater DO - http://dx.doi.org/10.1039/b109959k ER - TY - JOUR T1 - Multivariate analysis of periphyton assemblages in relation to environmental gradients in Colorado Rocky Mountain streams AN - 18772892; 5645664 AB - We assessed relationships between chemical and physical characteristics and periphyton assemblages in stream reaches of the mineral belt in the Southern Rockies ecoregion of Colorado, United States. Using canonical ordination analyses, we contrasted results wherein assemblage structure was assessed using community metrics or species abundances. Our objectives were to identify community metrics or individual species diagnostic of the primary environmental stressors in these streams, to compare the sensitivity of these two approaches to determining the primary stressors, and to determine how these approaches may be used to differentiate the effects of these environmental stressors from other gradients. For periphyton metrics, the first axis extracted by redundancy analysis correlated with total phosphorus, substrate coarseness and embeddedness, and riparian vegetation condition, whereas the second axis correlated with dissolved metals. For species abundances, the three axes extracted by canonical correspondence analysis (CCA) were correlated with (1) stream size and types of in-stream habitats; (2) total phosphorus, dissolved ions, and riparian disturbance by agriculture; and (3) sediment coarseness and embeddedness and riparian vegetation condition. Concentrations of dissolved metals were not correlated with the CCA axes. Analyses of species abundances were sensitive to effects associated with nutrients, substrates, and riparian vegetation, whereas analyses of periphyton metrics were sensitive not only to these nutrient and physical habitat effects but also to toxicological effects associated with metals. As a result, the analyses of periphyton metrics may be used to identify which metrics would be useful for a periphyton index of biotic integrity and would also be individually diagnostic of the larger scale stressors in these streams, nutrient, substrate, and riparian vegetation effects of livestock grazing and increased metal concentrations associated with metal mining. JF - Journal of Phycology AU - Griffith, M B AU - Hill, B H AU - Herlihy, A T AU - Kaufmann, PR AD - Oak Ridge Institute for Science and Education, c/o U.S. Environmental Protection Agency, National Exposure Research Laboratory, Cincinnati, Ohio 45268, USA Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 83 EP - 95 PB - Blackwell Publishers VL - 38 IS - 1 SN - 0022-3646, 0022-3646 KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Heavy metals KW - Ecological distribution KW - Phosphorus KW - Pollution effects KW - Streams KW - Environmental factors KW - Multivariate analysis KW - Algae KW - Rivers KW - USA, Colorado, Rocky Mts. KW - Gradients KW - Toxicity KW - Identification KW - USA, Colorado KW - Community composition KW - Community structure KW - Sediment texture KW - Riparian vegetation KW - Mining KW - Periphyton KW - K 03009:Algae KW - Q1 08462:Benthos KW - Q1 08422:Environmental effects KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18772892?accountid=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+Phycology&rft.atitle=Multivariate+analysis+of+periphyton+assemblages+in+relation+to+environmental+gradients+in+Colorado+Rocky+Mountain+streams&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=2002-02-01&rft.volume=38&rft.issue=1&rft.spage=83&rft.isbn=&rft.btitle=&rft.title=Journal+of+Phycology&rft.issn=00223646&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Rivers; Heavy metals; Ecological distribution; Phosphorus; Pollution effects; Toxicity; Environmental factors; Community composition; Multivariate analysis; Sediment texture; Riparian vegetation; Periphyton; Mining; Community structure; Gradients; Identification; Streams; Algae; USA, Colorado; USA, Colorado, Rocky Mts. ER - TY - JOUR T1 - Linkage Between Microzooplankton Grazing and Phytoplankton Growth in a Gulf of Mexico Estuary AN - 18587724; 5382459 AB - Microzooplankton dilution grazing experiments were conducted with water collected from Pensacola Bay, Florida (USA) on 12 dates at 2 sites. Statistically significant grazing rates were observed in 22 of 24 experiments. Grazing rates in Upper Bay and Lower Bay were similar averaging 0.54 and 0.51 d super(-1), respectively. Phytoplankton growth rates were also similar at the two sites, averaging 1.02 and 1.00 d super(-1) at Upper Bay and Lower Bay, respectively. Phytoplankton growth rates usually exceeded grazing rates by about a factor of two, though microzooplankton grazing represented a significant mortality for phytoplankton. The literature suggests a linkage between phytoplankton growth and microzooplankton grazing that spans a wide variety of aquatic environments. While individual growth and grazing rates were variable, growth frequently exceeded grazing by about two-fold. This implies that the role of microzooplankton is similar across a wide variety of aquatic systems. JF - Estuaries AU - Murrell, M C AU - Stanley, R S AU - Lores, E M AU - DiDonato, G T AU - Flemer, DA AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Gulf Ecology Division, 1 Sabine Island Drive, Gulf Breeze, FL 32561, USA, murrell.michael@epa.gov Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 19 EP - 29 VL - 25 IS - 1 SN - 0160-8347, 0160-8347 KW - USA, Florida, Pensacola Bay KW - USA, Mexico Gulf KW - ASFA 1: Biological Sciences & Living Resources; Microbiology Abstracts C: Algology, Mycology & Protozoology; Ecology Abstracts; Water Resources Abstracts; Oceanic Abstracts KW - USA, Florida KW - Ecosystems KW - Phytoplankton KW - Trophic relationships KW - Literature Review KW - Biotic factors KW - Bays KW - Growth rate KW - Experimental Data KW - Grazing KW - Zooplankton KW - Estuaries KW - Growth Rates KW - Biomass KW - ASW, USA, Florida, Pensacola Bay KW - Nannoplankton KW - ASW, USA, Mexico Gulf KW - Literature reviews KW - Mexico Gulf KW - Feeding experiments KW - K 03009:Algae KW - Q1 08483:Species interactions: general KW - O 1070:Ecology/Community Studies KW - K 03012:Protozoa KW - SW 0890:Estuaries KW - D 04320:Brackishwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18587724?accountid=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=Estuaries&rft.atitle=Linkage+Between+Microzooplankton+Grazing+and+Phytoplankton+Growth+in+a+Gulf+of+Mexico+Estuary&rft.au=Murrell%2C+M+C%3BStanley%2C+R+S%3BLores%2C+E+M%3BDiDonato%2C+G+T%3BFlemer%2C+DA&rft.aulast=Murrell&rft.aufirst=M&rft.date=2002-02-01&rft.volume=25&rft.issue=1&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=Estuaries&rft.issn=01608347&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Growth rate; Literature reviews; Grazing; Estuaries; Zooplankton; Feeding experiments; Phytoplankton; Biomass; Biotic factors; Trophic relationships; Bays; Nannoplankton; Experimental Data; Ecosystems; Growth Rates; Literature Review; ASW, USA, Mexico Gulf; USA, Florida; Mexico Gulf; ASW, USA, Florida, Pensacola Bay ER - TY - JOUR T1 - PBDEs in the San Francisco Bay Area: Measurements in harbor seal blubber and human breast adipose tissue AN - 18585625; 5361953 AB - To explore the levels of polybrominated diphenyl ethers (PBDEs) in California, samples from 11 archived harbor seals (Phoca vitulina Richardsi) from the San Francisco Bay and breast adipose tissue samples from 23 women were analyzed. The levels of PBDEs in human tissue samples were in the low ng/g fat range, with PBDEs 47, 153, 154, 99, and 100 as the major congeners. Average capital sigma PBDEs (86 ng/g fat) in these California women are the highest human levels reported to date. An inverse relationship between concentration of PBDEs and age of these women was apparent. The levels of PBDEs measured in harbor seal blubber were in the low ng/g to low mu g/g fat range, with the same major congeners as those measured in the human tissues. PBDE 47 was the highest among all congeners measured in both human tissue and seal blubber samples. The concentrations of PBDEs in harbor seals in the San Francisco Bay have increased dramatically over the past decade, with current levels among the highest reported for this species. JF - Chemosphere AU - She, J AU - Petreas, M AU - Winkler, J AU - Visita, P AU - McKinney, M AU - Kopec, D AD - Hazardous Materials Laboratory, California Department of Toxic Substances Control, Cal-EPA, 2151 Berkeley Way, Berkeley, CA 94704, USA, jshe@dtsc.ca.gov A2 - Alaee, M A2 - Wenning, RJ (eds) Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 697 EP - 707 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 46 IS - 5 SN - 0045-6535, 0045-6535 KW - Common seal KW - Fire retardants KW - Harbor seal KW - Harbour seal KW - Spotted seal KW - USA, California, San Francisco Bay KW - blubber KW - polybrominated diphenyl ethers KW - women KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts; Aqualine Abstracts; Oceanic Abstracts; Water Resources Abstracts; Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Environmental pollution and health KW - Tissues KW - Pollution monitoring KW - Blubber KW - Fire retardant chemicals KW - Polybrominated diphenyl ethers KW - Phoca vitulina KW - Human beings KW - Environmental monitoring KW - Fat KW - Pollution detection KW - Flame retardants KW - Environmental impact KW - Seawater pollution effects on marine life KW - Human Population KW - Seals KW - Brominated hydrocarbons KW - Bioaccumulation KW - Water Pollution Effects KW - Marine mammals KW - INE, USA, California, San Francisco Bay KW - Marine organisms KW - Fats KW - Females KW - Toxic pollutants KW - USA, California, San Francisco KW - Chemical pollutants KW - Pollution (Water) KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - P 1000:MARINE POLLUTION KW - M2:551.460.09:504.42.054 KW - Q5 08504:Effects on organisms KW - X 24153:Metabolism 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/18585625?accountid=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=Chemosphere&rft.atitle=PBDEs+in+the+San+Francisco+Bay+Area%3A+Measurements+in+harbor+seal+blubber+and+human+breast+adipose+tissue&rft.au=She%2C+J%3BPetreas%2C+M%3BWinkler%2C+J%3BVisita%2C+P%3BMcKinney%2C+M%3BKopec%2C+D&rft.aulast=She&rft.aufirst=J&rft.date=2002-02-01&rft.volume=46&rft.issue=5&rft.spage=697&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=00456535&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Pollution monitoring; Pollution detection; Bioaccumulation; Marine mammals; Fats; Chemical pollutants; Brominated hydrocarbons; Environmental impact; Fire retardant chemicals; Environmental pollution and health; Seawater pollution effects on marine life; Toxic pollutants; Environmental monitoring; Tissues; Marine organisms; Females; Fire retardants; Polybrominated diphenyl ethers; Blubber; Fat; Flame retardants; Human beings; Seals; Pollution (Water); Water Pollution Effects; Human Population; Phoca vitulina; INE, USA, California, San Francisco Bay; USA, California, San Francisco ER - TY - JOUR T1 - A comparison of impoundments and natural drainage lakes in the Northeast USA AN - 18404085; 5392306 AB - We classified 235 randomly selected lentic waterbodies (>1 ha) in the Northeast USA as human created, or natural. We compared geographic extent and distribution, morphology and hydrology, trophic state, and fish assemblage metrics of impoundments and natural drainage lakes. We estimated that 46% of the 10 608 ( plus or minus 1695; 95% CI) lentic waterbodies in the region were impoundments or quarries; 68% of Uplands lakes and 26% of Lowlands lakes were natural. Impoundments were smaller, shallower, had shorter water residence times, and were in watersheds with greater human activity than were natural drainage lakes. More than half (55%) of Lowlands impoundments were eutrophic, accounting for 67% of eutrophic or hypereutrophic lentic waterbodies in the Northeast. An estimated 90% of eutrophic lakes and impoundments were <23 ha. Impoundments had greater proportions of fish species and individuals tolerant of human disturbance, and greater proportions of non-native species and individuals than did natural drainage lakes. We discuss some management implications of the differences between impoundments and natural drainage lakes. JF - Hydrobiologia AU - Whittier, T R AU - Larsen, D P AU - Peterson, SA AU - Kincaid, T M AD - Dynamac International, Inc., U.S. EPA National Health and Ecological Effects Research Laboratory, Western Ecology Division, 200 SW 35th Street, Corvallis, OR 97333, U.S.A., whittier.thom@epamail.epa.gov Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 157 EP - 171 PB - Kluwer Academic Publishers VL - 470 IS - 1-3 SN - 0018-8158, 0018-8158 KW - USA KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Freshwater KW - D 04310:Freshwater KW - SW 4070:Ecological impact of water development KW - SW 0850:Lakes KW - Q2 02144:Regional studies, expeditions and data reports KW - Q1 01463:Habitat community studies KW - Q5 01521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18404085?accountid=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=A+comparison+of+impoundments+and+natural+drainage+lakes+in+the+Northeast+USA&rft.au=Whittier%2C+T+R%3BLarsen%2C+D+P%3BPeterson%2C+SA%3BKincaid%2C+T+M&rft.aulast=Whittier&rft.aufirst=T&rft.date=2002-02-01&rft.volume=470&rft.issue=1-3&rft.spage=157&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 - Comparison of ecological communities: The problem of sample representativeness AN - 18402435; 5391418 AB - Obtaining an adequate, representative sample of ecological communities to make taxon richness (TR) or compositional comparisons among sites is a continuing challenge. Although randomization in the collection of sample units is often used to assure that sampling is representative, randomization does not convey the concept of how well samples represent the community or site from which they are drawn. In ecological surveys, how well a sample represents a community or site literally means the similarity in taxon composition and relative abundance between a sample and the community from which it is drawn. Using both field and simulated data, we show that the proportion of the total taxon richness at a site (%TTR) achieved with a fixed sample size varies across sites, which in turn causes changes in site-to-site differences in observed TR with sample size. This means that equal-sized samples may differentially represent the communities from which they are drawn. However, the similarity of a sample to the community from which it is drawn cannot be measured directly because the taxon composition and relative abundance of the community is usually unknown. We propose to estimate it by measuring the average similarity among replicate samples randomly drawn from a community, i.e., autosimilarity, which is measured with Jaccard Coefficient in this study. Using the same data sets, we found that: (1) samples of equal size from different sites or communities achieved different levels of autosimilarity, with lower levels achieved in taxon richer sites, indicating variation in how well samples of equal size represent their respective communities; (2) %TTR was positively and almost linearly correlated with autosimilarity, indicating that autosimilarity might be a good predictor of TTR; and (3) when samples were compared at the same level of autosimilarity, similar %TTRs across different sites were achieved (i.e., the relative differences in taxon richness among sites became independent of sample size). We conclude that standardization on autosimilarity, rather than on sample size, can improve the accuracy of taxon richness comparisons. JF - Ecological Monographs AU - Cao, Yong AU - Larsen, D P AU - Williams, D D AD - Western Ecology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, 200 S.W. 35th Street, Corvallis, OR 97333, USA Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 41 EP - 56 VL - 72 IS - 1 SN - 0012-9615, 0012-9615 KW - Ecology Abstracts KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18402435?accountid=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+Monographs&rft.atitle=Comparison+of+ecological+communities%3A+The+problem+of+sample+representativeness&rft.au=Cao%2C+Yong%3BLarsen%2C+D+P%3BWilliams%2C+D+D&rft.aulast=Cao&rft.aufirst=Yong&rft.date=2002-02-01&rft.volume=72&rft.issue=1&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Ecological+Monographs&rft.issn=00129615&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 - A temperate reef fish, Tautogolabrus adspersus, (Walbaum) as a potential model species for laboratory studies evaluating reproductive effects of chemical exposure AN - 18378756; 5349548 AB - In ecotoxicological testing, there are few studies that report on reproductive output (egg production) of marine or estuarine fish. Cunner (Tautogolabrus adspersus) were studied as a potential model species to evaluate the impact of pollutants with estrogenic activity on reproduction in estuarine fish populations. Cunner inhabit marine and estuarine areas where contaminant discharges are likely. Baseline values for cunner gonadosomatic index (GSI), hepatosomatic index (HSI), and plasma vitellogenin (VTG) were determined in a field reference site (April 1999-December 1999). Male and female GSI indicated that cunner spawning is synchronized. Female HSI and VTG increased prior to GSI. From our laboratory observations, cunner are suitable for conducting experiments with reproductive endpoints indicative of both exposure (vitellogenin levels) and effects (egg production). However, cunner are not sexually dimorphic and stripping ripe fish is the only method to distinguish sex. In preparation for laboratory exposure studies with cunner, we designed a laboratory experimental holding system to accommodate cunner's reproductive behavior, a vertical spawning run to the water surface. Cunner were successfully acclimated from overwintering torpor to spawning condition in the laboratory by gradually changing the environmental conditions of fish held at winter conditions (4 degree C and 9:15-h light:dark photoperiod) to spawning condition (18 degree C and 15:9-h light:dark photoperiod). Our results show that cunner successfully spawned daily in the laboratory. They produced fertile eggs in our experimental system designed to accommodate cunner's vertical spawning runs, demonstrating that male and female reproductive behavior was synchronized in the laboratory. Our observations indicate that cunner would be a useful model species for evaluating reproductive effects of environmental contaminants in laboratory studies. JF - Environmental Toxicology and Chemistry AU - Gutjahr-Gobell, R E AU - Huber, M AU - Horowitz, DJB AU - Zaroogian, GE AU - Mills, L J AD - U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA, gobell.ruth@epa.gov Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 380 EP - 389 VL - 21 IS - 2 SN - 0730-7268, 0730-7268 KW - Cunner KW - endocrine disrupters KW - endocrine disruptors KW - xenoestrogens KW - ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Pollution Abstracts; Aqualine Abstracts; Toxicology Abstracts KW - Brackish KW - AQ 00008:Effects of Pollution KW - Q5 01504:Effects on organisms KW - X 24221:Toxicity testing KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18378756?accountid=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=A+temperate+reef+fish%2C+Tautogolabrus+adspersus%2C+%28Walbaum%29+as+a+potential+model+species+for+laboratory+studies+evaluating+reproductive+effects+of+chemical+exposure&rft.au=Gutjahr-Gobell%2C+R+E%3BHuber%2C+M%3BHorowitz%2C+DJB%3BZaroogian%2C+GE%3BMills%2C+L+J&rft.aulast=Gutjahr-Gobell&rft.aufirst=R&rft.date=2002-02-01&rft.volume=21&rft.issue=2&rft.spage=380&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 - Brackish ER - TY - JOUR T1 - Applying Ecological Risk Principles to Watershed Assessment and Management AN - 18278095; 5332656 AB - Considerable progress in addressing point source (end of pipe) pollution problems has been made, but it is now recognized that further substantial environmental improvements depend on controlling nonpoint source pollution. A watershed approach is being used more frequently to address these problems because traditional regulatory approaches do not focus on nonpoint sources. The watershed approach is organized around the guiding principles of partnerships, geographic focus, and management based on sound science and data. This helps to focus efforts on the highest priority problems within hydrologically-defined geographic areas. Ecological risk assessment is a process to collect, organize, analyze, and present scientific information to improve decision making. The U.S. Environmental Protection Agency (EPA) sponsored three watershed assessments and found that integrating the watershed approach with ecological risk assessment increases the use of environmental monitoring and assessment data in decision making. This paper describes the basics of the watershed approach, the ecological risk assessment process, and how these two frameworks can be integrated. The three major principles of watershed ecological risk assessment found to be most useful for increasing the use of science in decision making are (1) using assessment endpoints and conceptual models, (2) holding regular interactions between scientists and managers, and (3) developing a focus for multiple stressor analysis. Examples are provided illustrating how these principles were implemented in these assessments. JF - Environmental Management AU - Serveiss, V B AD - U.S. Environmental Protection Agency (8623-D), 1200 Pennsylvania Ave., NW, Washington, DC 20460 Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 145 EP - 154 PB - Springer-Verlag, [URL:http://link.springer.de/link/service/journals/00267/bibs/2029 002/20290145.htm] VL - 29 IS - 2 SN - 0364-152X, 0364-152X KW - ecotoxicology KW - risk assessment KW - Ecology Abstracts; Water Resources Abstracts; Pollution Abstracts; Toxicology Abstracts KW - Risk assessment KW - Management KW - Management Planning KW - Catchment Areas KW - Nonpoint Pollution Sources KW - Watershed Management KW - Environmental Protection KW - decision making KW - Decision Making KW - Ecological Effects KW - Nonpoint pollution KW - Watersheds KW - Water pollution KW - Water Pollution Control KW - Water Pollution Effects KW - Environment management KW - Pollution control KW - D 04700:Management KW - X 24230:Legislation & recommended standards KW - P 9000:ENVIRONMENTAL ACTION KW - SW 3070:Water quality control KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18278095?accountid=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=Applying+Ecological+Risk+Principles+to+Watershed+Assessment+and+Management&rft.au=Serveiss%2C+V+B&rft.aulast=Serveiss&rft.aufirst=V&rft.date=2002-02-01&rft.volume=29&rft.issue=2&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Environmental+Management&rft.issn=0364152X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Risk assessment; Management; Watersheds; Environment management; Water pollution; Pollution control; decision making; Nonpoint pollution; Water Pollution Control; Management Planning; Water Pollution Effects; Catchment Areas; Nonpoint Pollution Sources; Environmental Protection; Watershed Management; Ecological Effects; Decision Making ER - TY - JOUR T1 - Hydraulics of Stream Flow Routing with Bank Storage AN - 18273023; 5327856 AB - Bank storage is a process in which volumes of water are temporarily retained by alluvial stream banks during storm events and gradually released to partially sustain baseflow. This process has important hydrologic and ecological implications. In this paper, analytical solutions are developed for routing stream flow, lateral stream-aquifer interactions, and aquifer storage. In effect, the streamflow routing Muskingum method is modified for bank storage. The analysis is based on one-dimensional lateral groundwater flow in semiinfinite homogeneous unconfined aquifers, which are in contact with streams through semipervious bed sediments. Impulse response and unit step response functions are derived for the stream-aquifer system, using Laplace transformations. These response functions relate stream outflow, stream-aquifer flow, bank storage, and cumulative reach discharge volume to discrete-time inflow hydrographs through convolution integrals. The impulse response function decreases with increasing aquifer hydraulic conductivity at earlier times, but increases with the conductivity and persists at later times. The unit step response function decreases with aquifer conductivity uniformly in time. The dependence of stream flow and bank storage on aquifer hydraulic conductivity, streambed leakance, stream width, and aquifer diffusivity is investigated. The analysis is extended to discrete input data, and modification of the methodology to route discrete-time inflow hydrographs of general form is achieved, using discrete-time kernels. The presented analysis establishes the time domain for validity of the analytical solutions in terms of the Muskingum parameters and an aquifer-related parameter. JF - Journal of Hydrologic Engineering AU - Hantush, M M AU - Harada, Morihiro AU - Marino, MA AD - Land Remediation and Pollution Control Division, National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 26 West Martin Luther King Dr., Cincinnati, OH 45268, USA, hantush.mohamed@epa.gov Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 76 EP - 89 VL - 7 IS - 1 SN - 1084-0699, 1084-0699 KW - Bank storage KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts KW - Aquifers KW - Hydraulic conductivity KW - Hydraulics KW - Muskingum method KW - Bank Storage KW - Surface-groundwater Relations KW - Stream Banks KW - Streamflow KW - Aquifer storage KW - Groundwater-streamflow relationships KW - SW 0835:Streamflow and runoff KW - M2 556.536:Hydraulics, hydrodynamics of rivers, and streams KW - M2 556.332.2:Storage capacity: inflow and outflow (556.332.2) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18273023?accountid=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+Hydrologic+Engineering&rft.atitle=Hydraulics+of+Stream+Flow+Routing+with+Bank+Storage&rft.au=Hantush%2C+M+M%3BHarada%2C+Morihiro%3BMarino%2C+MA&rft.aulast=Hantush&rft.aufirst=M&rft.date=2002-02-01&rft.volume=7&rft.issue=1&rft.spage=76&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrologic+Engineering&rft.issn=10840699&rft_id=info:doi/10.1061%2F%28ASCE%291084-0699%282002%297%3A1%2876%29 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Hydraulic conductivity; Muskingum method; Groundwater-streamflow relationships; Aquifer storage; Aquifers; Hydraulics; Bank Storage; Surface-groundwater Relations; Stream Banks; Streamflow DO - http://dx.doi.org/10.1061/(ASCE)1084-0699(2002)7:1(76) ER - TY - JOUR T1 - In Vitro Effects of Polychlorinated Biphenyls and Hydroxy Metabolites on Nitric Oxide Synthases in Rat Brain AN - 18272218; 5331748 AB - Nitric oxide synthases (NOS) play a key role in motor activity in the cerebellum, hormonal regulation in the hypothalamus, and long-term potentiation (LTP), learning, and memory processes in the hippocampus. Developmental exposure to polychlorinated biphenyls (PCBs) has been shown to affect psychomotor functions, learning and memory processes, and to inhibit LTP. We hypothesized that PCBs may disrupt the regulation of such neurological functions by altering NOSs. We have studied the in vitro effects of several PCB congeners and some hydroxy PCBs on NOS activity in cytosolic (presumably neuronal NOS [nNOS]) and membrane (presumably endothelial NOS [eNOS]) fractions in different brain regions of young and adult rats. Among the two selected dichloro PCBs, the ortho-PCB, 2,2'-dichlorobiphenyl (DCB), inhibited both cytosolic and membrane NOS activity at low micromolar concentrations (3-10 mu M) in the selected brain regions of all age groups while the non-ortho-PCB, 4,4'-DCB, did not. 2,2'-DCB inhibited cytosolic NOS to a greater extent than membrane NOS. Pentachloro-PCBs (PeCBs) and hexachloro-PCBs (HCBs) did not have a significant effect on adult cerebellar cytosolic or membrane NOS. However, mono- and dihydroxy derivatives of HCBs significantly decreased cytosolic NOS (IC50s: 16.33 plus or minus 0.47 and 33.65 plus or minus 4.33 mu M, respectively) but resulted in a marginal effect on membrane NOS in the cerebellum. Among three adult rat brain regions, the hypothalamic cytosolic NOS was the most sensitive to 2,2'-DCB. Also, cytosolic NOS in the cerebellum and hypothalamus of young rats was less sensitive than in the older rats. In summary, these results indicate that only di-ortho-PCB inhibited both NOS and hydroxy substitution of one or more chlorine molecules significantly increased the potency of both ortho- and non-ortho-HCBs. The selective sensitivity of NOS to dichloro- ortho-PCB and hydroxy metabolites suggests that the inhibition of NOS could play a role in the neuroendocrine effects as well as learning and memory deficits caused by exposure to PCBs. JF - Toxicology and Applied Pharmacology AU - Sharma, R AU - Kodavanti, P S AD - Cellular and Molecular Toxicology Branch, Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, United U.S. EPA, Research Triangle Park, North Carolina, 27711 Y1 - 2002/02/01/ PY - 2002 DA - 2002 Feb 01 SP - 127 EP - 136 PB - Academic Press VL - 178 IS - 3 SN - 0041-008X, 0041-008X KW - rats KW - CSA Neurosciences Abstracts; Toxicology Abstracts KW - Hypothalamus KW - Cerebellum KW - Brain KW - Learning behavior KW - Nitric-oxide synthase KW - Memory KW - PCB KW - N3 11104:Mammals (except primates) KW - X 24155:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18272218?accountid=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=In+Vitro+Effects+of+Polychlorinated+Biphenyls+and+Hydroxy+Metabolites+on+Nitric+Oxide+Synthases+in+Rat+Brain&rft.au=Sharma%2C+R%3BKodavanti%2C+P+S&rft.aulast=Sharma&rft.aufirst=R&rft.date=2002-02-01&rft.volume=178&rft.issue=3&rft.spage=127&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+Applied+Pharmacology&rft.issn=0041008X&rft_id=info:doi/10.1006%2Ftaap.2001.9328 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Brain; PCB; Nitric-oxide synthase; Learning behavior; Memory; Cerebellum; Hypothalamus DO - http://dx.doi.org/10.1006/taap.2001.9328 ER - TY - JOUR T1 - The Surface Charge of Visible Particulate Matter Predicts Biological Activation in Human Bronchial Epithelial Cells AN - 18272123; 5331750 AB - The physicochemical complexity of airborne particulate matter (PM) has hampered identifying a specific mechanism(s) for its toxicity. In this study, selected physicochemical characteristics (i.e., size, particle number, acidity, and surface charge) were measured on various field PM, derived from urban ambient (St. Louis, Ottawa, Canada), residential (Woodstove), volcanic dust from Mt. St. Helen (MSH), and industrial [oil fly ash (OFA) coal fly ash (CFA)] sources. Morphometric analysis of visible ( less than or equal to 2.0 to >10 mu m) field particles indicated that the industrial PM (OFA, CFA) had the smallest diameter and lowest total number of particles per weight while Woodstove and Ottawa had the largest diameter and highest number of particles. All PM lowered the pH of an unbuffered 10 mM NaCl solution from pH 7.4 to pH 4.7-6.8 but did not change the neutral pH of the cell culture medium, keratinocyte growth media (KGM). The surface charge (i.e., zeta potential) of microscopically visible ( greater than or equal to 2.0 mu m) field particles, suspended in either a Hepes-buffered KCl solution or in KGM, was measured by microelectrophoresis. In KCl solution, the mean zeta potential of all tested PM ranged from -36 plus or minus 2 (Woodstove) to -27 plus or minus 4.3 mV (MSH). When measured in KGM medium, the mean zeta potential value of each PM was significantly less (p > 0.001) than those measured in KCl solution, with values ranging from -17 plus or minus 0.3 mV (St. Louis) to -9 plus or minus 0.6 mV (MSH). Suspensions of field PM, its soluble and washed particulate fractions, were next prepared from each PM. The biological effects (i.e., increases in intracellular calcium ([Ca super(2+)] sub(i)), cytokine release) of their exposure were measured in human, immortalized, tracheal-bronchial epithelial cells (BEAS-2B). Exposure of BEAS-2B cells to each fraction produced an immediate, but differential increase in [Ca super(2+)] sub(i) and the subsequent release of the inflammatory cytokine IL-6, 4 and 16 h later. Increases in [Ca super(2+)] sub(i) by field PM significantly correlated with the IL-6 released by each fraction (r super(2) greater than or equal to 0.76) after both 4 and 16 h exposures. The biological effects of each PM were compared with their physicochemical characteristics. No correlation was found between increases in [Ca super(2+)] sub(i) or cytokine release and a PM's acidity or the number or size of its visible ( greater than or equal to 2.0 mu m) particles. However, the surface charge of PM field particles, when measured in the KGM exposure medium, showed a high correlation (r super(2) greater than or equal to 0.94) with the IL-6 release by field PM after both 4 and 16 h exposure. Increases in [Ca super(2+)] sub(i) also correlated (r super(2) = 0.85) with the surface charge of PM field particles when measured in KGM. These data indicate that the surface charge (i.e., zeta potential) carried on PM's visible field particles predicts their differential release of the inflammatory cytokine IL-6 in cultures of human respiratory epithelial cells. [copy ]2002 Elsevier Science (USA). JF - Toxicology and Applied Pharmacology AU - Veronesi, B AU - de Haar, C AU - Lee, L AU - Oortgiesen, M AD - National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, 27711 Y1 - 2002/02/01/ PY - 2002 DA - 2002 Feb 01 SP - 144 EP - 154 PB - Academic Press VL - 178 IS - 3 SN - 0041-008X, 0041-008X KW - man KW - Toxicology Abstracts KW - Interleukin 6 KW - Air pollution KW - Bronchus KW - Zeta potential KW - Particulate matter KW - Particulate pollution KW - Epithelium KW - Surface charge KW - X 24240:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18272123?accountid=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=The+Surface+Charge+of+Visible+Particulate+Matter+Predicts+Biological+Activation+in+Human+Bronchial+Epithelial+Cells&rft.au=Veronesi%2C+B%3Bde+Haar%2C+C%3BLee%2C+L%3BOortgiesen%2C+M&rft.aulast=Veronesi&rft.aufirst=B&rft.date=2002-02-01&rft.volume=178&rft.issue=3&rft.spage=144&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+Applied+Pharmacology&rft.issn=0041008X&rft_id=info:doi/10.1006%2Ftaap.2001.9341 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Air pollution; Bronchus; Epithelium; Particulate matter; Interleukin 6; Particulate pollution; Surface charge; Zeta potential DO - http://dx.doi.org/10.1006/taap.2001.9341 ER - TY - JOUR T1 - A perspective on the potential health risks of PBDEs AN - 1665493337; 5361957 AB - The polybrominated diphenylethers (PBDEs) are a class of chemicals widely used as flame retardants. Concentrations of PBDEs in some human and marine mammal populations are increasing. The toxicological endpoints of concern for environmental levels of PBDEs are likely to be thyroid hormone disruption, neurodevelopmental deficits and cancer. Unfortunately, the available toxicological evidence for these endpoints is surprisingly limited, given their widespread use, bioaccumulative potential, and structural similarity to thyroid hormones and polychlorinated biphenyls (PCBs). Available evidence suggests that the PBDE congeners likely to bioaccumulate (i.e., those observed in human tissues and other biota) have the propensity to disrupt thyroid hormones, cause neurobehavioral deficits and possibly cause cancer in laboratory animals. It is unclear whether current concentrations of PBDEs in human tissues would be expected to adversely impact human health. Since nearly all individuals are exposed to low levels of PBDEs, the potential health impacts also should include assessment at the population level. This paper summarizes the available toxicological evidence for PBDE-induced thyroid hormone disruption, neurodevelopmental deficits, and, for some congeners, cancer, and provides a perspective on the potential risks of the PBDEs for human health. JF - Chemosphere AU - McDonald, T A AD - Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, 1515 Clay Street, 16th Floor, Oakland, CA 94612, USA, tmcdonal@oehha.ca.gov A2 - Alaee, M A2 - Wenning, RJ (eds) Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 745 EP - 755 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 46 IS - 5 SN - 0045-6535, 0045-6535 KW - polybrominated diphenyl ethers KW - Toxicology Abstracts; Aqualine Abstracts; Water Resources Abstracts; Risk Abstracts; Health & Safety Science Abstracts; Pollution Abstracts KW - Chemicals KW - Marine KW - endocrine disruptors KW - Flame retardants KW - Environmental impact KW - Environmental health KW - Neurological complications KW - Carcinogens KW - Toxicity KW - Fire retardant chemicals KW - Carcinogenic substances KW - Cancer KW - Polybrominated diphenyl ethers KW - Thyroid hormones KW - Bioaccumulation KW - Ethers KW - Fire retardants KW - Toxicology KW - X 24156:Environmental impact KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution KW - R2 23060:Medical and environmental health 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/1665493337?accountid=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=Chemosphere&rft.atitle=A+perspective+on+the+potential+health+risks+of+PBDEs&rft.au=McDonald%2C+T+A&rft.aulast=McDonald&rft.aufirst=T&rft.date=2002-02-01&rft.volume=46&rft.issue=5&rft.spage=745&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=00456535&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Thyroid hormones; Bioaccumulation; Environmental impact; Neurological complications; Fire retardant chemicals; Cancer; Chemicals; endocrine disruptors; Environmental health; Toxicity; Fire retardants; Polybrominated diphenyl ethers; Flame retardants; Carcinogenic substances; Toxicology; Carcinogens; Ethers; Marine ER - TY - JOUR T1 - The influence of increased line-fishing mortality on the sex ratio and age of sex reversal of the venus tusk fish AN - 1665491354; 5352865 AB - The age of sex reversal of the venus tusk fish Choerodon venustus, caught by line fishing at various locations on the southern Great Barrier Reef, indicated that C. venustus is capable of modifying its life cycle in response to increased mortality. The evidence suggests Masthead Reef fish, which experience the highest mortality, underwent sex reversal at a smaller size and younger age than at the other sites. The largest female fish, sexually transitional fish and males were smaller at Masthead Reef than at the Swains Reefs or One Tree Reef at Masthead Reef. There was also considerable overlap in the size of males and females within the exploited populations indicating that sex reversal is not initiated at a particular length but may have a social cause. The sex ratio of fish was essentially the same for fish fully susceptible to line fishing in the Swains and Masthead samples. Circumstantial evidence suggested that the absence of large males in a population may initiate sex reversal, indicating the maintenance of a constant sex ratio may have a social basis.Copyright 2002 The Fisheries Society of the British Isles JF - Journal of Fish Biology AU - Platten, J R AU - Tibbetts, IR AU - Sheaves, MJ AD - Environmental Protection Agency, Gladstone, Queensland, Australia, 4701, john.platten@env.qld.gov.au Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 301 EP - 318 PB - Academic Press VL - 60 IS - 2 SN - 0022-1112, 0022-1112 KW - Pinksided tuskfish KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Marine fisheries KW - Marine KW - Mortality KW - Sex ratio KW - Sex reversal KW - Man-induced effects KW - Human impact KW - ISEW, Australia, Queensland, Great Barrier Reef KW - Choerodon venustus KW - Australia, Queensland, Great Barrier Reef KW - Fisheries KW - Fishing mortality KW - Population structure KW - D 04700:Management KW - Q1 08441:Population structure KW - O 5020:Fisheries and Fishery Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1665491354?accountid=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+Fish+Biology&rft.atitle=The+influence+of+increased+line-fishing+mortality+on+the+sex+ratio+and+age+of+sex+reversal+of+the+venus+tusk+fish&rft.au=Platten%2C+J+R%3BTibbetts%2C+IR%3BSheaves%2C+MJ&rft.aulast=Platten&rft.aufirst=J&rft.date=2002-02-01&rft.volume=60&rft.issue=2&rft.spage=301&rft.isbn=&rft.btitle=&rft.title=Journal+of+Fish+Biology&rft.issn=00221112&rft_id=info:doi/10.1006%2Fjfbi.2001.1826 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Marine fisheries; Sex reversal; Sex ratio; Man-induced effects; Population structure; Fishing mortality; Mortality; Fisheries; Human impact; Choerodon venustus; ISEW, Australia, Queensland, Great Barrier Reef; Australia, Queensland, Great Barrier Reef; Marine DO - http://dx.doi.org/10.1006/jfbi.2001.1826 ER - TY - JOUR T1 - Life cycle inventory for Municipal Solid Waste management. Part 2: MSW management scenarios and modeling AN - 16145770; 5409935 AB - Evaluating the environmental performance of municipal solid waste management options is a complex task. Part 1 of this study presents the municipal solid waste management program of the Pamplona Region in Spain and explores the operational, economic, and environmental factors of the program. In Part 2, alternative waste management scenarios that include the selective collection of organic material and composting are illustrated. The use of a Life Cycle Inventory model for waste management allows for the comparison of the environmental burdens of the different scenarios. This use of a Life Cycle Inventory model for solid waste management lets program managers and decision makers include energy use, final solid waste, and Greenhouse gas emissions in the decision making process. Additionally, the different management scenarios are evaluated on their ability to fulfil Pamplona regional objectives and meet European Packaging and Landfill Directive targets. JF - Waste Management & Research AU - Wilson, E J AD - US EPA/Office Of Research & Development, MD-63, Atmospheric Protection Branch, Air Pollution Prevention & Control Division, National Risk Management Research Laboratory, Research Triangle Park, NC 27711, USA Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 23 EP - 36 VL - 20 IS - 1 SN - 0734-242X, 0734-242X KW - Economics KW - Greenhouse gases KW - Life cycle analysis KW - Municipal solid wastes KW - Solid wastes KW - Waste management KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts; Pollution Abstracts KW - Spain KW - W4 220:Environmental Modeling KW - W 30965:Miscellaneous, Reviews KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16145770?accountid=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=Waste+Management+%26+Research&rft.atitle=Life+cycle+inventory+for+Municipal+Solid+Waste+management.+Part+2%3A+MSW+management+scenarios+and+modeling&rft.au=Wilson%2C+E+J&rft.aulast=Wilson&rft.aufirst=E&rft.date=2002-02-01&rft.volume=20&rft.issue=1&rft.spage=23&rft.isbn=&rft.btitle=&rft.title=Waste+Management+%26+Research&rft.issn=0734242X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-09-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Life cycle analysis; Economics; Greenhouse gases; Municipal solid wastes; Solid wastes; Waste management; Spain ER - TY - JOUR T1 - Life cycle inventory for municipal solid waste management AN - 16145399; 5409934 AB - Evaluating the environmental performance of municipal solid waste management options is a complex task. Part 1 of this study presents the municipal solid waste management program of the Pamplona Region in Spain, exploring the institutional, operational and economic factors of the program. In Part 2, alternative waste management scenarios that include the selective collection of organic material and composting are illustrated. The use of a Life Cycle Inventory model for waste management allows for the comparison of the environmental burdens of the different scenarios. This use of a Life Cycle Inventory model for solid waste management lets program managers and decision makers include energy use, final solid waste, and Greenhouse gas emissions in the decision making process. Additionally, the different management scenarios are evaluated on their ability to fulfil Pamplona regional objectives and meet European Packaging and Landfill Directive targets. JF - Waste Management & Research AU - Wilson, E J AD - US EPA/Office Of Research & Development, MD-63, Atmospheric Protection Branch, Air Pollution Prevention & Control Division, National Risk Management Research Laboratory, Research Triangle Park, NC 27711, USA Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 16 EP - 22 VL - 20 IS - 1 SN - 0734-242X, 0734-242X KW - Pollution Abstracts KW - Life cycle analysis KW - Spain KW - decision making KW - Energy consumption KW - Greenhouse gases KW - Municipal solid wastes KW - Waste management KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16145399?accountid=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+%26+Research&rft.atitle=Life+cycle+inventory+for+municipal+solid+waste+management&rft.au=Wilson%2C+E+J&rft.aulast=Wilson&rft.aufirst=E&rft.date=2002-02-01&rft.volume=20&rft.issue=1&rft.spage=16&rft.isbn=&rft.btitle=&rft.title=Waste+Management+%26+Research&rft.issn=0734242X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-09-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Life cycle analysis; Energy consumption; decision making; Greenhouse gases; Municipal solid wastes; Waste management; Spain ER - TY - JOUR T1 - Derivation of nutrient guidelines for streams in Victoria, Australia AN - 16139940; 5357291 AB - Human induced increases to nutrient concentrations in streams have led to many agencies developing strategies and criteria for nutrient reduction. National or statewide guidelines are generally inappropriate, due to the natural variability in stream ecosystems within political boundaries. This study used an extant aquatic macroinvertebrate-based regionalisation for the state of Victoria, Australia, as the basis for defining regions of relatively homogeneous environmental character. This enabled the selection of ecologically-based regional reference sites and subsequent characterisation of the nutrient status of these sites. Using an extensive biological and nutrient data base for streams across the State, we calculated 50th and 75th percentile concentrations for reference sites within each region. Using these percentiles in conjunction with 'impact and recovery' studies, we defined nutrient guidelines for each region. Although the nutrient data largely supported the biological regionalisation, patterns in the nutrient data did require some minor modifications for the nutrient regions. Relatively unimpacted regions with reference sites in very good-to excellent-condition were assigned guidelines largely based on the 75th percentiles. The more impacted regions, where 'best available' reference sites were of poorer quality, were assigned guidelines based largely on the 50th percentiles. Professional judgement and known extents of impacts across each region provided important contributions to the decision-making process. The derived guideline concentrations are comparable to several cited in the literature and are proposed for use in monitoring, assessment and restoration targets. JF - Environmental Monitoring and Assessment AU - Newall, P AU - Tiller, D AD - Co-operative Research Centre for Freshwater Ecology, Environment Protection Authority, Melbourne, Victoria, Australia, peter.newall@epa.vic.gov.au Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 85 EP - 103 PB - Kluwer Academic Publishers, [mailto:sales@wkap.nl] VL - 73 IS - 3 SN - 0167-6369, 0167-6369 KW - Australia, Victoria KW - Ecology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Entomology Abstracts; Aqualine Abstracts; Water Resources Abstracts; Pollution Abstracts KW - Pollution monitoring KW - Water Pollution Sources KW - Anthropogenic factors KW - Man-induced effects KW - Nutrients KW - Water quality KW - Streams KW - Restoration KW - Baseline studies KW - Pollution indicators KW - Aquatic insects KW - Freshwater pollution KW - Bioindicators KW - Rivers KW - Freshwater environments KW - Water Quality KW - Macrofauna KW - Human Population KW - Streams (in natural channels) KW - Community composition KW - Nutrients (mineral) KW - Zoobenthos KW - Pollution (Water) KW - Nutrient concentrations KW - Water quality (Natural waters) KW - Benthos KW - Indicator species KW - D 04310:Freshwater KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - Z 05210:Aquatic entomology KW - Q5 08502:Methods and instruments KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16139940?accountid=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=Derivation+of+nutrient+guidelines+for+streams+in+Victoria%2C+Australia&rft.au=Newall%2C+P%3BTiller%2C+D&rft.aulast=Newall&rft.aufirst=P&rft.date=2002-02-01&rft.volume=73&rft.issue=3&rft.spage=85&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 - 2002-12-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Rivers; Pollution monitoring; Baseline studies; Community composition; Anthropogenic factors; Man-induced effects; Nutrients (mineral); Water quality; Aquatic insects; Restoration; Indicator species; Freshwater pollution; Freshwater environments; Macrofauna; Zoobenthos; Nutrient concentrations; Streams; Nutrients; Pollution indicators; Streams (in natural channels); Pollution (Water); Water quality (Natural waters); Benthos; Bioindicators; Water Pollution Sources; Water Quality; Human Population ER - TY - JOUR T1 - The role of Raman spectroscopy in the analytical chemistry of potable water AN - 16136409; 5396914 AB - Advances in instrumentation are making Raman spectroscopy the tool of choice for an increasing number of chemical applications. For example, many recalcitrant industrial process monitoring problems have been solved in recent years with in-line Raman spectrometers. Raman is attractive for these applications for many reasons, including remote non-invasive sampling, minimal sample preparation and tolerance of water. To a lesser extent, Raman spectroscopy is beginning to play a significant role in environmental analysis for the same reasons. At present, the environmental applications typically apply only to the most contaminated situations due to the still relatively high limits of detection. However, some emerging sampling technologies hold out the promise that Raman may soon be more widely applicable to the analytical chemistry of potable water. Herein we discuss these recent advances, summarize some examples of environmental applications to aqueous systems and suggest avenues of future developments that we expect to be most useful for potable water analysis. Also, a simplified, but detailed, theory of normal Raman scattering is presented. While resonance-enhanced Raman spectroscopy, surface-enhanced Raman spectroscopy and non-linear Raman techniques are briefly discussed, their theories and instrumental configurations are not addressed. Also, this article deals primarily with the modern dispersive Raman experiment (as opposed to the Fourier transform Raman experiment), because it seems most suited for potable water analysis. The goal of this article is to give the environmental scientist with no specialized knowledge of the topic just enough theory and background to evaluate the utility of this rapidly developing analytical tool. JF - Journal of Environmental Monitoring AU - Collette, T W AU - Williams, T L AD - US Environmental Protection Agency, National Exposure Research Laboratory, 960 College Station Rd., Athens, GA 30605, USA, collette.tim@epa.gov Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 27 EP - 34 VL - 4 IS - 1 SN - 1464-0325, 1464-0325 KW - Water Resources Abstracts KW - Drinking Water KW - Water Analysis KW - Potable Water KW - Chemical Analysis KW - Spectroscopy KW - SW 3010:Identification of pollutants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16136409?accountid=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+Environmental+Monitoring&rft.atitle=The+role+of+Raman+spectroscopy+in+the+analytical+chemistry+of+potable+water&rft.au=Collette%2C+T+W%3BWilliams%2C+T+L&rft.aulast=Collette&rft.aufirst=T&rft.date=2002-02-01&rft.volume=4&rft.issue=1&rft.spage=27&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Monitoring&rft.issn=14640325&rft_id=info:doi/10.1039%2Fb107274a LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2003-07-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Drinking Water; Water Analysis; Potable Water; Chemical Analysis; Spectroscopy DO - http://dx.doi.org/10.1039/b107274a ER - TY - JOUR T1 - Hydrologic Regionalization of Watersheds. I: Methodology Development AN - 16134208; 5315947 AB - A hydrologic regionalization scheme is proposed for classification of watersheds at gauged sites. This scheme used 16 streamflow parameters estimated by a time series model to classify 94 watersheds into 6 regions by cluster analysis. The classified regions seem to be separated by physiographical boundaries, especially the two main clusters. Discriminant analysis tests the significance of the cluster difference; thus, each cluster represents one hydrologic region. Principal component analysis interprets the regional differences and similarities. The regional membership is mainly identified by the watershed variables of elevation, forest area, channel slope, and precipitation based on the calculation of the scores of canonical discriminant variates. This emphasizes the importance of the hydrologic regionalization and the identification of the specific characteristics in each region. JF - Journal of Water Resources Planning and Management AU - Chiang, S-M AU - Tsay, T-K AU - Nix, S J AD - Office of Deputy Administrator, Environmental Protection Administration, 41, Sec. 1, Chung-Hwa Rd., Taipei, Taiwan, smchiang@sun.epa.gov.tw Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 3 EP - 11 VL - 128 IS - 1 SN - 0733-9496, 0733-9496 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Catchment area KW - Principal component analysis KW - Regional Analysis KW - Data handling KW - Principal Component Analysis KW - Statistical analysis KW - Watershed hydrology KW - Watersheds KW - Stream flow KW - Classification KW - Catchment areas KW - Statistical Analysis KW - Hydrology KW - Hydrologic Data KW - Data Interpretation KW - AQ 00001:Water Resources and Supplies KW - M2 556:General (556) KW - Q2 09127:General papers on resources KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16134208?accountid=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+Water+Resources+Planning+and+Management&rft.atitle=Hydrologic+Regionalization+of+Watersheds.+I%3A+Methodology+Development&rft.au=Chiang%2C+S-M%3BTsay%2C+T-K%3BNix%2C+S+J&rft.aulast=Chiang&rft.aufirst=S-M&rft.date=2002-02-01&rft.volume=128&rft.issue=1&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Journal+of+Water+Resources+Planning+and+Management&rft.issn=07339496&rft_id=info:doi/10.1061%2F%28ASCE%290733-9496%282002%29128%3A1%283%29 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-07-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Catchment area; Statistical analysis; Hydrology; Watersheds; Stream flow; Principal component analysis; Watershed hydrology; Data handling; Catchment areas; Regional Analysis; Classification; Principal Component Analysis; Statistical Analysis; Data Interpretation; Hydrologic Data DO - http://dx.doi.org/10.1061/(ASCE)0733-9496(2002)128:1(3) ER - TY - JOUR T1 - Hydrologic Regionalization of Watersheds. II: Applications AN - 16132970; 5315948 AB - Multiple regression analysis (MRA) and a time series model (TSM) are developed and validated for using watershed characteristics to synthesize streamflow hydrographs. Relationships between the streamflow parameters and watershed variables are evaluated by canonical correlation analysis at 94 candidate watersheds. These relationships are constructed using MRA to predict streamflow parameters at six validation stations in two main hydrologic regions. The predicted streamflow parameters are applied to synthesizing specific monthly streamflows by using the developed TSM. The synthetic hydrographs are found to be mostly improved over those found from traditional simple regression equations. Statistical properties and reliability curves of the synthetic Qs are compared with those of the historical records. The statistical properties seem to be well preserved, and the reliability curves are reasonable in one hydrologic region but somewhat biased in the other. The proposed regionalization scheme is validated and therefore considered feasible and reliable for estimating monthly streamflows at ungauged sites. JF - Journal of Water Resources Planning and Management AU - Chiang, S-M AU - Tsay, T-K AU - Nix, S J AD - Office of Secretary General, Environmental Protection Administration, 41, Sec. 1, Chung-Hwa Rd., Taipei, Taiwan, smchiang@sun.epa.gov.tw Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 12 EP - 20 VL - 128 IS - 1 SN - 0733-9496, 0733-9496 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Catchment area KW - Regression Analysis KW - Time-series analysis KW - Statistical analysis KW - Watersheds KW - Time Series Analysis KW - Catchment areas KW - Streamflow analysis KW - Statistical Analysis KW - Regression analysis KW - Hydrology KW - Hydrographs KW - Hydrologic Data KW - Estimating KW - Streamflow KW - Modelling (-general-) KW - Watershed hydrology KW - Model Studies KW - Stream flow KW - AQ 00001:Water Resources and Supplies KW - M2 556:General (556) KW - Q2 09127:General papers on resources KW - SW 0835:Streamflow and runoff UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16132970?accountid=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+Water+Resources+Planning+and+Management&rft.atitle=Hydrologic+Regionalization+of+Watersheds.+II%3A+Applications&rft.au=Chiang%2C+S-M%3BTsay%2C+T-K%3BNix%2C+S+J&rft.aulast=Chiang&rft.aufirst=S-M&rft.date=2002-02-01&rft.volume=128&rft.issue=1&rft.spage=12&rft.isbn=&rft.btitle=&rft.title=Journal+of+Water+Resources+Planning+and+Management&rft.issn=07339496&rft_id=info:doi/10.1061%2F%28ASCE%290733-9496%282002%29128%3A1%2812%29 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-07-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Catchment area; Statistical analysis; Hydrology; Watersheds; Stream flow; Streamflow analysis; Regression analysis; Watershed hydrology; Catchment areas; Time-series analysis; Hydrographs; Modelling (-general-); Regression Analysis; Time Series Analysis; Estimating; Statistical Analysis; Streamflow; Hydrologic Data; Model Studies DO - http://dx.doi.org/10.1061/(ASCE)0733-9496(2002)128:1(12) ER - TY - JOUR T1 - Distributed structure-searchable toxicity (DSSTox) public database network: a proposal. AN - 71408307; 11804603 AB - The ability to assess the potential genotoxicity, carcinogenicity, or other toxicity of pharmaceutical or industrial chemicals based on chemical structure information is a highly coveted and shared goal of varied academic, commercial, and government regulatory groups. These diverse interests often employ different approaches and have different criteria and use for toxicity assessments, but they share a need for unrestricted access to existing public toxicity data linked with chemical structure information. Currently, there exists no central repository of toxicity information, commercial or public, that adequately meets the data requirements for flexible analogue searching, Structure-Activity Relationship (SAR) model development, or building of chemical relational databases (CRD). The distributed structure-searchable toxicity (DSSTox) public database network is being proposed as a community-supported, web-based effort to address these shared needs of the SAR and toxicology communities. The DSSTox project has the following major elements: (1) to adopt and encourage the use of a common standard file format (structure data file (SDF)) for public toxicity databases that includes chemical structure, text and property information, and that can easily be imported into available CRD applications; (2) to implement a distributed source approach, managed by a DSSTox Central Website, that will enable decentralized, free public access to structure-toxicity data files, and that will effectively link knowledgeable toxicity data sources with potential users of these data from other disciplines (such as chemistry, modeling, and computer science); and (3) to engage public/commercial/academic/industry groups in contributing to and expanding this community-wide, public data sharing and distribution effort. The DSSTox project's overall aims are to effect the closer association of chemical structure information with existing toxicity data, and to promote and facilitate structure-based exploration of these data within a common chemistry-based framework that spans toxicological disciplines. JF - Mutation research AU - Richard, Ann M AU - Williams, ClarLynda R AD - US Environmental Protection Agency, Mail Drop 68, National Health and Environmental Effects Research Laboratories, Research Triangle Park, NC 27711, USA. richard.ann@epa.gov Y1 - 2002/01/29/ PY - 2002 DA - 2002 Jan 29 SP - 27 EP - 52 VL - 499 IS - 1 SN - 0027-5107, 0027-5107 KW - Carcinogens KW - 0 KW - Index Medicus KW - Databases, Factual KW - Toxicology KW - Internet KW - Structure-Activity Relationship UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71408307?accountid=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=Distributed+structure-searchable+toxicity+%28DSSTox%29+public+database+network%3A+a+proposal.&rft.au=Richard%2C+Ann+M%3BWilliams%2C+ClarLynda+R&rft.aulast=Richard&rft.aufirst=Ann&rft.date=2002-01-29&rft.volume=499&rft.issue=1&rft.spage=27&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 - 2002-03-19 N1 - Date created - 2002-01-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - CPAPER T1 - Survey of contaminated sediment resuspension during capping AN - 39466804; 3643986 AU - Lyons, T AU - Cumming, L AU - Ickes, J AU - Magar, V S AU - Trulli, W AU - Albro, C AU - Myers, T Y1 - 2002/01/08/ PY - 2002 DA - 2002 Jan 08 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science KW - U 5500:Geoscience KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39466804?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+contaminated+sediment+resuspension+during+capping&rft.au=Lyons%2C+T%3BCumming%2C+L%3BIckes%2C+J%3BMagar%2C+V+S%3BTrulli%2C+W%3BAlbro%2C+C%3BMyers%2C+T&rft.aulast=Lyons&rft.aufirst=T&rft.date=2002-01-08&rft.volume=&rft.issue=&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 Erosion Control Association, P.O. Box 774904, 1355 S Lincoln Ave, Steamboat Springs, CO 80477-4904, USA; phone: 970-879-3010; fax: 970-879-8563; email: ecinfo@ieca.org; URL: www.ieca.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - NY/NJ Harbor dredged material decontamination and beneficial use demonstration AN - 39449992; 3643940 AU - Stern, E A AU - Jones, K W AU - Douglas, W S AU - Feng, H AU - Clesceri, N L AU - Lodge, J Y1 - 2002/01/08/ PY - 2002 DA - 2002 Jan 08 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science KW - U 5500:Geoscience KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39449992?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=NY%2FNJ+Harbor+dredged+material+decontamination+and+beneficial+use+demonstration&rft.au=Stern%2C+E+A%3BJones%2C+K+W%3BDouglas%2C+W+S%3BFeng%2C+H%3BClesceri%2C+N+L%3BLodge%2C+J&rft.aulast=Stern&rft.aufirst=E&rft.date=2002-01-08&rft.volume=&rft.issue=&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 Erosion Control Association, P.O. Box 774904, 1355 S Lincoln Ave, Steamboat Springs, CO 80477-4904, USA; phone: 970-879-3010; fax: 970-879-8563; email: ecinfo@ieca.org; URL: www.ieca.org N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Characterization and pH/Eh-based leaching tests of mining wastes containing mercury AN - 855197149; 2011-025286 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Chattopadhyay, Sandip AU - Ickes, Jennifer AU - Randall, Paul AU - Lipps, Jody A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2H EP - 06 PB - Battelle Press, Columbus, OH VL - 3 KW - United States KW - aquifer vulnerability KW - desorption KW - halogens KW - bromide ion KW - trinitrotoluene KW - RDX KW - remediation KW - ground water KW - waste management KW - laboratory studies KW - triazines KW - explosives KW - water treatment KW - tracers KW - pH KW - Eh KW - liquid phase KW - Amarillo Texas KW - mines KW - concentration KW - experimental studies KW - in situ KW - pollutants KW - oxidation KW - pollution KW - Texas KW - potassium permanganate KW - Pantex Plant Site KW - bromine KW - aquifers KW - Potter County Texas KW - organic compounds KW - HMX KW - detection KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855197149?accountid=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+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Characterization+and+pH%2FEh-based+leaching+tests+of+mining+wastes+containing+mercury&rft.au=Chattopadhyay%2C+Sandip%3BIckes%2C+Jennifer%3BRandall%2C+Paul%3BLipps%2C+Jody&rft.aulast=Chattopadhyay&rft.aufirst=Sandip&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 13 N1 - PubXState - OH N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - Amarillo Texas; aquifer vulnerability; aquifers; bromide ion; bromine; concentration; desorption; detection; Eh; experimental studies; explosives; ground water; halogens; HMX; in situ; laboratory studies; liquid phase; mines; organic compounds; oxidation; Pantex Plant Site; pH; pollutants; pollution; potassium permanganate; Potter County Texas; RDX; remediation; Texas; tracers; triazines; trinitrotoluene; United States; waste management; water treatment ER - TY - JOUR T1 - Solidification/stabilization; a low-cost treatment for wood preserving sites AN - 855197069; 2011-025330 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Bates, Edward R A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2H EP - 51 PB - Battelle Press, Columbus, OH VL - 3 KW - United States KW - soils KW - Jackson Tennessee KW - Jackson County Tennessee KW - pollutants KW - creosote KW - pollution KW - pentachlorophenol KW - dioxins KW - chlorophenols KW - remediation KW - waste management KW - organic compounds KW - toxicity KW - Tennessee KW - risk assessment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855197069?accountid=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+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Solidification%2Fstabilization%3B+a+low-cost+treatment+for+wood+preserving+sites&rft.au=Bates%2C+Edward+R&rft.aulast=Bates&rft.aufirst=Edward&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 17 N1 - PubXState - OH N1 - Document feature - illus. incl. 9 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - chlorophenols; creosote; dioxins; Jackson County Tennessee; Jackson Tennessee; organic compounds; pentachlorophenol; pollutants; pollution; remediation; risk assessment; soils; Tennessee; toxicity; United States; waste management ER - TY - JOUR T1 - Occurrence of mercury-resistant microorganisms in mercury-contaminated soils and sediments in Pavlodar, Kazakhstan AN - 855197029; 2011-025289 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Abdrashitova, Svetlana A AU - Kavanaugh, Rathi G AU - Ilyushchenko, M A AU - Kalmykv, A Yu AU - Aitkeldieva, S A AU - Morris, Brian J AU - Devereux, Richard AU - Davis-Hoover, Wendy J A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2H EP - 09 PB - Battelle Press, Columbus, OH VL - 3 KW - soils KW - contaminant plumes KW - pollutants KW - pollution KW - chemical waste KW - Central Asia KW - remediation KW - Commonwealth of Independent States KW - Pavlodar Kazakhstan KW - metals KW - bacteria KW - sediments KW - Kazakhstan KW - Irtysh River KW - Asia KW - Actinomyces KW - microorganisms KW - mercury KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855197029?accountid=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+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Occurrence+of+mercury-resistant+microorganisms+in+mercury-contaminated+soils+and+sediments+in+Pavlodar%2C+Kazakhstan&rft.au=Abdrashitova%2C+Svetlana+A%3BKavanaugh%2C+Rathi+G%3BIlyushchenko%2C+M+A%3BKalmykv%2C+A+Yu%3BAitkeldieva%2C+S+A%3BMorris%2C+Brian+J%3BDevereux%2C+Richard%3BDavis-Hoover%2C+Wendy+J&rft.aulast=Abdrashitova&rft.aufirst=Svetlana&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 9 N1 - PubXState - OH N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - Actinomyces; Asia; bacteria; Central Asia; chemical waste; Commonwealth of Independent States; contaminant plumes; Irtysh River; Kazakhstan; mercury; metals; microorganisms; Pavlodar Kazakhstan; pollutants; pollution; remediation; sediments; soils ER - TY - JOUR T1 - Lessons learned from optimization of pump and treat systems nationwide AN - 855197014; 2011-025236 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Sutton, Douglas J AU - Greenwald, Robert AU - Rich, Peter AU - Becker, David J AU - Yager, Kathleen A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2E EP - 04 PB - Battelle Press, Columbus, OH VL - 3 KW - technology KW - engineering properties KW - Superfund KW - water management KW - pollution KW - optimization KW - cost KW - remediation KW - ground water KW - aquifers KW - transport KW - water treatment KW - pump-and-treat KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855197014?accountid=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+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Lessons+learned+from+optimization+of+pump+and+treat+systems+nationwide&rft.au=Sutton%2C+Douglas+J%3BGreenwald%2C+Robert%3BRich%2C+Peter%3BBecker%2C+David+J%3BYager%2C+Kathleen&rft.aulast=Sutton&rft.aufirst=Douglas&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - PubXState - OH N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - aquifers; cost; engineering properties; ground water; optimization; pollution; pump-and-treat; remediation; Superfund; technology; transport; water management; water treatment ER - TY - JOUR T1 - Comparison of predicted and observed plume trends at contaminated sites AN - 855196982; 2011-025221 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Henry, Bruce M AU - Hicks, John R AU - Wiedemeier, Todd H AU - Hansen, Jerry E AU - Kampbell, Donald H A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2D EP - 04 PB - Battelle Press, Columbus, OH VL - 3 KW - concentration KW - monitoring KW - degradation KW - contaminant plumes KW - pollutants KW - prediction KW - pollution KW - rates KW - BTEX KW - remediation KW - models KW - organic compounds KW - solvents KW - dynamics KW - decontamination KW - natural attenuation KW - hydrocarbons KW - weathering rates KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855196982?accountid=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+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Comparison+of+predicted+and+observed+plume+trends+at+contaminated+sites&rft.au=Henry%2C+Bruce+M%3BHicks%2C+John+R%3BWiedemeier%2C+Todd+H%3BHansen%2C+Jerry+E%3BKampbell%2C+Donald+H&rft.aulast=Henry&rft.aufirst=Bruce&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 10 N1 - PubXState - OH N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - aromatic hydrocarbons; BTEX; concentration; contaminant plumes; decontamination; degradation; dynamics; hydrocarbons; models; monitoring; natural attenuation; organic compounds; pollutants; pollution; prediction; rates; remediation; solvents; weathering rates ER - TY - JOUR T1 - Complete natural attenuation of PCE and TCE without vinyl chloride and ethene accumulation AN - 855196977; 2011-025219 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Ferrey, Mark AU - Wilson, John A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2D EP - 02 PB - Battelle Press, Columbus, OH VL - 3 KW - vinyl chloride KW - United States KW - chlorinated hydrocarbons KW - contaminant plumes KW - pumping KW - aliphatic hydrocarbons KW - Twin Cities Army Ammunition Plant KW - tetrachloroethylene KW - ground water KW - ethylene KW - transport KW - alkenes KW - natural attenuation KW - halogenated hydrocarbons KW - Minnesota KW - pollutants KW - pollution KW - aquifers KW - organic compounds KW - Ramsey County Minnesota KW - hydrocarbons KW - shallow aquifers KW - trichloroethylene KW - military facilities KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855196977?accountid=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+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Complete+natural+attenuation+of+PCE+and+TCE+without+vinyl+chloride+and+ethene+accumulation&rft.au=Ferrey%2C+Mark%3BWilson%2C+John&rft.aulast=Ferrey&rft.aufirst=Mark&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 10 N1 - PubXState - OH N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkenes; aquifers; chlorinated hydrocarbons; contaminant plumes; ethylene; ground water; halogenated hydrocarbons; hydrocarbons; military facilities; Minnesota; natural attenuation; organic compounds; pollutants; pollution; pumping; Ramsey County Minnesota; shallow aquifers; tetrachloroethylene; transport; trichloroethylene; Twin Cities Army Ammunition Plant; United States; vinyl chloride ER - TY - JOUR T1 - Regulatory perspective; in situ chemical oxidation pilot test in fractured granite AN - 855196968; 2011-025213 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Brandon, Bill AU - Marajih-Whittemore, Patty AU - McTigue, Dave AU - Chaffin, David A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2C EP - 45 PB - Battelle Press, Columbus, OH VL - 3 KW - United States KW - chlorinated hydrocarbons KW - water quality KW - contaminant plumes KW - tetrachloroethylene KW - ground water KW - partitioning KW - South Weymouth Naval Air Station KW - Massachusetts KW - chemical properties KW - halogenated hydrocarbons KW - leaking underground storage tanks KW - concentration KW - in situ KW - oxidation KW - injection KW - pollution KW - aquifers KW - volatiles KW - organic compounds KW - Fenton's reagents KW - Plymouth County Massachusetts KW - volatile organic compounds KW - hydrogen peroxide KW - shallow aquifers KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855196968?accountid=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+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Regulatory+perspective%3B+in+situ+chemical+oxidation+pilot+test+in+fractured+granite&rft.au=Brandon%2C+Bill%3BMarajih-Whittemore%2C+Patty%3BMcTigue%2C+Dave%3BChaffin%2C+David&rft.aulast=Brandon&rft.aufirst=Bill&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 10 N1 - PubXState - OH N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - aquifers; chemical properties; chlorinated hydrocarbons; concentration; contaminant plumes; Fenton's reagents; ground water; halogenated hydrocarbons; hydrogen peroxide; in situ; injection; leaking underground storage tanks; Massachusetts; organic compounds; oxidation; partitioning; Plymouth County Massachusetts; pollution; shallow aquifers; South Weymouth Naval Air Station; tetrachloroethylene; United States; volatile organic compounds; volatiles; water quality ER - TY - JOUR T1 - Design and operation of land treatment units at wood-treating sites AN - 855196953; 2011-025332 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Harris, James C AU - Stordahl, Darrel A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2H EP - 53 PB - Battelle Press, Columbus, OH VL - 3 KW - United States KW - soils KW - fertilizers KW - Superfund KW - pollutants KW - moisture KW - reclamation KW - pollution KW - decision-making KW - chemical waste KW - bioremediation KW - remediation KW - irrigation KW - nutrients KW - pentach KW - leachate KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855196953?accountid=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+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Design+and+operation+of+land+treatment+units+at+wood-treating+sites&rft.au=Harris%2C+James+C%3BStordahl%2C+Darrel&rft.aulast=Harris&rft.aufirst=James&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 15 N1 - PubXState - OH N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - bioremediation; chemical waste; decision-making; fertilizers; irrigation; leachate; moisture; nutrients; pentach; pollutants; pollution; reclamation; remediation; soils; Superfund; United States ER - TY - JOUR T1 - Estimating percent removal for a soil venting project AN - 855196784; 2011-025345 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Simon, Michelle A AU - Lancaster, Vicki Ann AU - Hicks, James E A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 3A EP - 06 PB - Battelle Press, Columbus, OH VL - 3 KW - soils KW - concentration KW - spatial data KW - soil vapor extraction KW - data processing KW - unsaturated zone KW - pollution KW - remediation KW - models KW - computer programs KW - volatiles KW - organic compounds KW - sampling KW - volatile organic compounds KW - EarthVision KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855196784?accountid=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+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Estimating+percent+removal+for+a+soil+venting+project&rft.au=Simon%2C+Michelle+A%3BLancaster%2C+Vicki+Ann%3BHicks%2C+James+E&rft.aulast=Simon&rft.aufirst=Michelle&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 2 N1 - PubXState - OH N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - computer programs; concentration; data processing; EarthVision; models; organic compounds; pollution; remediation; sampling; soil vapor extraction; soils; spatial data; unsaturated zone; volatile organic compounds; volatiles ER - TY - JOUR T1 - Fate and transport potential for dissolved polycyclic aromatic hydrocarbons from a shallow to a deep aquifer at the Madisonville Creosote Works AN - 855196771; 2011-025329 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Lee, Roger W AU - Tzhone, Stephen A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2H EP - 50 PB - Battelle Press, Columbus, OH VL - 3 KW - United States KW - biodegradation KW - water supply KW - contaminant plumes KW - Superfund KW - Madisonville Creosote Works KW - pollution KW - observation wells KW - drinking water KW - aquifers KW - organic compounds KW - Saint Tammany Parish Louisiana KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - shallow aquifers KW - risk assessment KW - Louisiana KW - Upland Terrace Aquifer KW - permeability KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855196771?accountid=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+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Fate+and+transport+potential+for+dissolved+polycyclic+aromatic+hydrocarbons+from+a+shallow+to+a+deep+aquifer+at+the+Madisonville+Creosote+Works&rft.au=Lee%2C+Roger+W%3BTzhone%2C+Stephen&rft.aulast=Lee&rft.aufirst=Roger&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 4 N1 - PubXState - OH N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - aquifers; aromatic hydrocarbons; biodegradation; contaminant plumes; drinking water; hydrocarbons; Louisiana; Madisonville Creosote Works; observation wells; organic compounds; permeability; pollution; polycyclic aromatic hydrocarbons; risk assessment; Saint Tammany Parish Louisiana; shallow aquifers; Superfund; United States; Upland Terrace Aquifer; water supply ER - TY - JOUR T1 - Thermal-enhanced SVE of PCE under a dry cleaning establishment; a case study AN - 855196700; 2011-025270 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Jepsen, Jarl D AU - Jorgensen, Torben AU - Skov, Hans AU - Fuglsang, Inger A A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2G EP - 08 PB - Battelle Press, Columbus, OH VL - 3 KW - chlorinated hydrocarbons KW - contaminant plumes KW - soil vapor extraction KW - techniques KW - Europe KW - drinking water KW - temperature KW - remediation KW - ground water KW - decontamination KW - sediments KW - halogenated hydrocarbons KW - Denmark KW - pump-and-treat KW - soils KW - leaking underground storage tanks KW - concentration KW - Western Europe KW - pollutants KW - thermal properties KW - pollution KW - aquifers KW - Scandinavia KW - organic compounds KW - Odense Denmark KW - saturation KW - trichloroethylene KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855196700?accountid=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+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Thermal-enhanced+SVE+of+PCE+under+a+dry+cleaning+establishment%3B+a+case+study&rft.au=Jepsen%2C+Jarl+D%3BJorgensen%2C+Torben%3BSkov%2C+Hans%3BFuglsang%2C+Inger+A&rft.aulast=Jepsen&rft.aufirst=Jarl&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - PubXState - OH N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - aquifers; chlorinated hydrocarbons; concentration; contaminant plumes; decontamination; Denmark; drinking water; Europe; ground water; halogenated hydrocarbons; leaking underground storage tanks; Odense Denmark; organic compounds; pollutants; pollution; pump-and-treat; remediation; saturation; Scandinavia; sediments; soil vapor extraction; soils; techniques; temperature; thermal properties; trichloroethylene; Western Europe ER - TY - JOUR T1 - Concurrent injection of cosolvent and air for enhanced PCE removal AN - 855196699; 2011-025198 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Jeong, Seung-Woo AU - Wood, A Lynn AU - Lee, Tony R Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2C EP - 30 PB - Battelle Press, Columbus, OH VL - 3 KW - chlorinated hydrocarbons KW - experimental studies KW - solutes KW - pollution KW - porous materials KW - tetrachloroethylene KW - preferential flow KW - dense nonaqueous phase liquids KW - remediation KW - ground water KW - buoyancy KW - aquifers KW - nonaqueous phase liquids KW - laboratory studies KW - organic compounds KW - solvents KW - soil flushing KW - halogenated hydrocarbons KW - dynamic properties KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855196699?accountid=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+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Concurrent+injection+of+cosolvent+and+air+for+enhanced+PCE+removal&rft.au=Jeong%2C+Seung-Woo%3BWood%2C+A+Lynn%3BLee%2C+Tony+R&rft.aulast=Jeong&rft.aufirst=Seung-Woo&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 5 N1 - PubXState - OH N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-03-14 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - aquifers; buoyancy; chlorinated hydrocarbons; dense nonaqueous phase liquids; dynamic properties; experimental studies; ground water; halogenated hydrocarbons; laboratory studies; nonaqueous phase liquids; organic compounds; pollution; porous materials; preferential flow; remediation; soil flushing; solutes; solvents; tetrachloroethylene ER - TY - JOUR T1 - Soil vapor sampling and modeling for indoor air risk characterization AN - 855196535; 2011-025240 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Marley, Michael C AU - Walsh, Matthew AU - Polonsky, Jon AU - Cody, Raphael A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2E EP - 08 PB - Battelle Press, Columbus, OH VL - 3 KW - United States KW - concentration KW - moisture KW - soil vapor extraction KW - reclamation KW - characterization KW - pollution KW - decision-making KW - ground water KW - aquifers KW - air pollution KW - models KW - volatiles KW - organic compounds KW - sampling KW - volatile organic compounds KW - risk assessment KW - Colorado KW - permeability KW - Superfund sites KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855196535?accountid=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+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Soil+vapor+sampling+and+modeling+for+indoor+air+risk+characterization&rft.au=Marley%2C+Michael+C%3BWalsh%2C+Matthew%3BPolonsky%2C+Jon%3BCody%2C+Raphael&rft.aulast=Marley&rft.aufirst=Michael&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 15 N1 - PubXState - OH N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - air pollution; aquifers; characterization; Colorado; concentration; decision-making; ground water; models; moisture; organic compounds; permeability; pollution; public health; reclamation; risk assessment; sampling; soil vapor extraction; Superfund sites; United States; volatile organic compounds; volatiles ER - TY - JOUR T1 - Field evaluation of DNAPL extraction technologies; project overview AN - 855195856; 2011-025258 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Wood, A L AU - Lee, T R AU - Enfield, C G AU - Brooks, M C AU - McHale, T J A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2F EP - 11 PB - Battelle Press, Columbus, OH VL - 3 KW - United States KW - chlorinated hydrocarbons KW - Kent County Delaware KW - contaminant plumes KW - soil vapor extraction KW - techniques KW - tetrachloroethylene KW - dense nonaqueous phase liquids KW - air sparging KW - sugars KW - remediation KW - partitioning KW - Dover Air Force Base KW - tracers KW - halogenated hydrocarbons KW - carbohydrates KW - Delaware KW - pollutants KW - pollution KW - solubility KW - nonaqueous phase liquids KW - organic compounds KW - saturation KW - surfactants KW - testing KW - hydraulic conductivity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855195856?accountid=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+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Field+evaluation+of+DNAPL+extraction+technologies%3B+project+overview&rft.au=Wood%2C+A+L%3BLee%2C+T+R%3BEnfield%2C+C+G%3BBrooks%2C+M+C%3BMcHale%2C+T+J&rft.aulast=Wood&rft.aufirst=A&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 10 N1 - PubXState - OH N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - air sparging; carbohydrates; chlorinated hydrocarbons; contaminant plumes; Delaware; dense nonaqueous phase liquids; Dover Air Force Base; halogenated hydrocarbons; hydraulic conductivity; Kent County Delaware; nonaqueous phase liquids; organic compounds; partitioning; pollutants; pollution; remediation; saturation; soil vapor extraction; solubility; sugars; surfactants; techniques; testing; tetrachloroethylene; tracers; United States ER - TY - JOUR T1 - Mercury Accumulation in Foliage over Time in Two Northern Mixed-Hardwood Forests AN - 817604164; 13726770 AB - Concentrations of mercury (Hg) in live foliage increased ten-fold from spring bud break (mean c std. dev. from bothsites: 3.5c1.3 ng g super(-1)) to autumn litterfall(36c8 ng g super(-1)). Mercury in foliage did not behavesimilarly to eight other elements with known soil or aerosolsources (Aluminum (Al), Vanadium (V), Strontium (Sr), Rubidium(Rb), Copper (Cu), Zinc (Zn), Barium (Ba), and lead (Pb)),suggesting that Hg originated from a distinct pathway. Based onmeasured and modeled data, uptake of only 25% of the availableambient dry deposited Hg super(0) could explain all of the Hgmeasured in foliage throughout the growing season. Estimates ofgaseous elemental Hg (Hg super(0)) uptake from soil water accountedfor 3-14%% of the Hg in litterfall. Mercury deposition toforested sites in the Lake Champlain and Lake Huron basins washighest in litterfall (40%), followed by total throughfall(33%), and precipitation (27%). The Hg flux in litterfall was15.8c1.9~kg m super(-2) yr super(-1) to the Lake ChamplainWatershed in 1995 and was 11.4c2.8~kg m super(-2) yr super(-1) to the Lake Huron Watershed in 1996. In comparison, the Hg fluxes in precipitation and total throughfall were 9.0c0.6 and 11.6c0.7~kg m super(-2) yr super(-1)in the Lake Champlain Watershed (1995), and 8.7c0.5 and 10.5c1.0~kg m super(-2) yr super(-1) in the Lake Huron Watershed (1996). JF - Water, Air, & Soil Pollution AU - Rea, A W AU - Lindberg, SE AU - Scherbatskoy, T AU - Keeler, G J AD - University of Michigan Air Quality Laboratory, Ann Arbor, MI, 48109, U.S.A., Rea.Anne@epa.gov Y1 - 2002/01// PY - 2002 DA - Jan 2002 SP - 49 EP - 67 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 133 IS - 1-4 SN - 0049-6979, 0049-6979 KW - Toxicology Abstracts; Meteorological & Geoastrophysical Abstracts; Environment Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Heavy metals KW - Forests KW - Basins KW - Copper KW - Watersheds KW - North America, Huron L. KW - Lead KW - Soil KW - Lakes KW - foliage KW - North America, Champlain L. KW - Absorption KW - Mercury in the atmosphere KW - Vanadium KW - Atmospheric pollution KW - Growing season KW - throughfall KW - Soil contamination KW - Barium KW - Mercury KW - Soil moisture KW - Foliage KW - Zinc KW - Data processing KW - Precipitation KW - Water pollution KW - Soil pollution KW - Air pollution KW - Mercury deposition KW - Aluminum KW - Aluminium KW - Throughfall KW - Strontium KW - Accumulation KW - X 24390:Radioactive Materials KW - Q5 08503:Characteristics, behavior and fate KW - P 0000:AIR POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - M2 556.14:Infiltration/Soil Moisture (556.14) KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/817604164?accountid=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%2C+Air%2C+%26+Soil+Pollution&rft.atitle=Mercury+Accumulation+in+Foliage+over+Time+in+Two+Northern+Mixed-Hardwood+Forests&rft.au=Rea%2C+A+W%3BLindberg%2C+SE%3BScherbatskoy%2C+T%3BKeeler%2C+G+J&rft.aulast=Rea&rft.aufirst=A&rft.date=2002-01-01&rft.volume=133&rft.issue=1-4&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Water%2C+Air%2C+%26+Soil+Pollution&rft.issn=00496979&rft_id=info:doi/10.1023%2FA%3A1012919731598 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Vanadium; Air pollution; Heavy metals; Barium; Aluminium; Mercury; Strontium; Watersheds; Water pollution; Foliage; Data processing; Basins; Forests; Copper; Precipitation; Soil pollution; Lakes; Zinc; Aluminum; Throughfall; Mercury in the atmosphere; Growing season; Mercury deposition; Atmospheric pollution; Soil moisture; Soil; foliage; throughfall; Soil contamination; Lead; Absorption; Accumulation; North America, Champlain L.; North America, Huron L. DO - http://dx.doi.org/10.1023/A:1012919731598 ER - TY - JOUR T1 - Levoglucosan in PM2.5 at the Fresno supersite. AN - 72909297; 15152659 AB - Ambient air monitoring for PM2.5 has been conducted on a daily basis at the Fresno, CA, supersite since 1999. It has been found that PM2.5 concentrations routinely exceed the National Ambient Air Quality Standards during the winter months. In an effort to determine the effect of biomass burning on PM2.5 concentrations, samples during 2000 were analyzed for levoglucosan, palmitic acid, and stearic acid. The results of this study are presented. JF - Journal of the Air & Waste Management Association (1995) AU - Poore, M W AD - California Environmental Protection Agency, California Air Resources Board, Monitoring and Laboratory Division, Sacramento, California 95814, USA. Y1 - 2002/01// PY - 2002 DA - January 2002 SP - 3 EP - 4 VL - 52 IS - 1 SN - 1096-2247, 1096-2247 KW - Air Pollutants KW - 0 KW - Hazardous Waste KW - 1,6-anhydro-beta-glucopyranose KW - 498-07-7 KW - Glucose KW - IY9XDZ35W2 KW - Index Medicus KW - Environmental Monitoring KW - California KW - Particle Size KW - Glucose -- analogs & derivatives KW - Air Pollutants -- analysis KW - Glucose -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72909297?accountid=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=Levoglucosan+in+PM2.5+at+the+Fresno+supersite.&rft.au=Poore%2C+M+W&rft.aulast=Poore&rft.aufirst=M&rft.date=2002-01-01&rft.volume=52&rft.issue=1&rft.spage=3&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 - 2004-06-01 N1 - Date created - 2004-05-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Relation between elevated ambient temperature and mortality: a review of the epidemiologic evidence. AN - 72890902; 12762092 JF - Epidemiologic reviews AU - Basu, Rupa AU - Samet, Jonathan M AD - Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA. basu.rupa@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 190 EP - 202 VL - 24 IS - 2 SN - 0193-936X, 0193-936X KW - Air Pollutants KW - 0 KW - Index Medicus KW - Body Temperature KW - Risk Factors KW - Humans KW - United States -- epidemiology KW - Air Pollutants -- adverse effects KW - Heat Stress Disorders -- mortality KW - Hot Temperature -- adverse effects KW - Environmental Exposure KW - Mortality -- trends UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72890902?accountid=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=Epidemiologic+reviews&rft.atitle=Relation+between+elevated+ambient+temperature+and+mortality%3A+a+review+of+the+epidemiologic+evidence.&rft.au=Basu%2C+Rupa%3BSamet%2C+Jonathan+M&rft.aulast=Basu&rft.aufirst=Rupa&rft.date=2002-01-01&rft.volume=24&rft.issue=2&rft.spage=190&rft.isbn=&rft.btitle=&rft.title=Epidemiologic+reviews&rft.issn=0193936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-07-10 N1 - Date created - 2003-05-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effects of heat shock protein 70 (Hsp70) on arsenite-induced genotoxicity. AN - 72774119; 12489113 AB - Arsenic, a human carcinogen, is genotoxic, although its mechanism(s) of action for tumorigenesis is not well understood. Among the toxicity-related properties of this chemical are its clastogenic and aneugenic activities, as well as its capacity for inducing stress-response in the form of elevated heat shock protein (HSP) expression. In the present study, we evaluated the effects of Hsp70 expression on arsenite (As)-induced structural and numerical chromosome anomalies in human cells. Human MCF-7 Tet-off cells stably transfected with a pTRE/Hsp70-1 transgene construct were used to regulate Hsp70 levels prior to in vitro As exposures. Separate cultures of relatively high vs. low Hsp70-expressing cells were established. A cytokinesis block micronucleus assay with kinetochore immunostaining was used to detect micronuclei (MN) derived from chromosome breakage (K-MN) or loss (K+MN). These studies demonstrated significant increases in micronucleus frequencies in response to As following either a long exposure (5 or 10 microM for 46 hr), or short exposure (10 or 40 microM for 8 hr) protocol. Overall, the long protocol was more efficient in producing K+MN and cells with multiple MN. Overexpressing Hsp70 resulted in significant reductions in the percent of cells positive for MN for both the long and short As exposure protocols. Both K+ and K- types of As-induced MN were lower in cells with elevated Hsp70 as compared to cells without overexpression of Hsp70. We conclude that the dose and duration of As exposure influence the type as well as amount of chromosomal alteration produced and that inducible Hsp70 protects against both the clastogenic and aneugenic effects of this chemical. Published 2002 Wiley-Liss, Inc. JF - Environmental and molecular mutagenesis AU - Barnes, J A AU - Collins, B W AU - Dix, D J AU - Allen, J W AD - National Research Council, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA. Jill_Barnes@ncsu.edu Y1 - 2002 PY - 2002 DA - 2002 SP - 236 EP - 242 VL - 40 IS - 4 SN - 0893-6692, 0893-6692 KW - Arsenites KW - 0 KW - Carcinogens KW - HSP70 Heat-Shock Proteins KW - Sodium Compounds KW - sodium arsenite KW - 48OVY2OC72 KW - arsenite KW - N5509X556J KW - Index Medicus KW - Kinetochores -- drug effects KW - Micronucleus Tests KW - Tumor Cells, Cultured KW - Transfection KW - Dose-Response Relationship, Drug KW - DNA Damage KW - Humans KW - Cell Division -- drug effects KW - Chromosomes -- drug effects KW - Up-Regulation KW - Time Factors KW - HSP70 Heat-Shock Proteins -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72774119?accountid=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=Effects+of+heat+shock+protein+70+%28Hsp70%29+on+arsenite-induced+genotoxicity.&rft.au=Barnes%2C+J+A%3BCollins%2C+B+W%3BDix%2C+D+J%3BAllen%2C+J+W&rft.aulast=Barnes&rft.aufirst=J&rft.date=2002-01-01&rft.volume=40&rft.issue=4&rft.spage=236&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 - 2003-02-10 N1 - Date created - 2002-12-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Utility of three types of mass spectrometers for determining elemental compositions of ions formed from chromatographically separated compounds. AN - 72757456; 12478582 AB - Concentration factors of 1000 and more reveal dozens of compounds in extracts of water supplies. Library mass spectra for most of these compounds are not available, and alternative means of identification are needed. Determination of the elemental compositions of the ions in mass spectra makes feasible searches of commercial and chemical literature that often lead to compound identification. Instrumental capabilities that constrain the utility of a mass spectrometer for determining ion compositions for compounds that elute from a chromatographic column are scan speed, mass accuracy, linear dynamic range, and resolving power. Mass peak profiling from selected ion recording data (MPPSIRD) performed with a double-focusing mass spectrometer provides the best combination of these capabilities. This technique provides unique ion compositions for ions of higher mass from compounds eluting from a gas chromatograph than can be obtained by orthogonal acceleration time-of-flight (oa-TOF) or Fourier transform ion cyclotron resonance mass spectrometry. Multiple compositions are usually possible for an ion with a mass exceeding 150 Da within the error limits of the mass measurement. The correct composition is selected based on measured exact masses of the mass peak profiles resulting from isotopic ions higher in mass by 1 and 2 Da and accurate measurement of the summed abundances of these isotopic ions relative to the monoisotopic ion. A profile generation model (PGM) automatically determines which compositions are consistent with measured exact masses and relative abundances. The utility of oa-TOF and double-focusing mass spectrometry using ion composition elucidation (MPPSIRD plus the PGM) are considered for determining ion compositions of two compounds found in drinking water extracts and a third compound from a monitoring well at a landfill. Published in 2002 by John Wiley & Sons, Ltd. JF - Rapid communications in mass spectrometry : RCM AU - Grange, Andrew H AU - Genicola, Floyd A AU - Sovocool, G Wayne AD - Environmental Sciences Division, NERL, U.S. EPA, PO Box 93478, Las Vegas, NV 89193-3478, USA. grange.andrew@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 2356 EP - 2369 VL - 16 IS - 24 SN - 0951-4198, 0951-4198 KW - Ions KW - 0 KW - Water Pollutants KW - Water KW - 059QF0KO0R KW - Index Medicus KW - Sensitivity and Specificity KW - Water Pollutants -- analysis KW - Ions -- chemistry KW - Ions -- analysis KW - Fourier Analysis KW - Molecular Weight KW - Water Supply -- analysis KW - Water -- chemistry KW - Mass Spectrometry -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72757456?accountid=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=Rapid+communications+in+mass+spectrometry+%3A+RCM&rft.atitle=Utility+of+three+types+of+mass+spectrometers+for+determining+elemental+compositions+of+ions+formed+from+chromatographically+separated+compounds.&rft.au=Grange%2C+Andrew+H%3BGenicola%2C+Floyd+A%3BSovocool%2C+G+Wayne&rft.aulast=Grange&rft.aufirst=Andrew&rft.date=2002-01-01&rft.volume=16&rft.issue=24&rft.spage=2356&rft.isbn=&rft.btitle=&rft.title=Rapid+communications+in+mass+spectrometry+%3A+RCM&rft.issn=09514198&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-02-11 N1 - Date created - 2002-12-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Review of indoor emission source models. Part 2. Parameter estimation. AN - 72705489; 12442781 AB - This review consists of two parts. Part 1 provides an overview of 52 indoor emission source models. Part 2--this paper-focuses on parameter estimation, a topic that is critical to modelers but has never been systematically discussed. A perfectly valid model may not be a useful one if some of its parameters are difficult to estimate in the absence of experimental data. This is true for both statistical and mass transfer models. Forty-eight methods are compiled and reviewed in this paper. Overall, developing methods for parameter estimation has fallen behind the development of models. Such imbalance is the main reason that many models have been left on the shelf since they were published. JF - Environmental pollution (Barking, Essex : 1987) AU - Guo, Zhishi AD - US Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Research Triangle Park, NC 27711, USA. guo.zhishi@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 551 EP - 564 VL - 120 IS - 3 SN - 0269-7491, 0269-7491 KW - Index Medicus KW - Diffusion KW - Atmospheric Pressure KW - Risk Assessment KW - Air Pollution, Indoor KW - Environmental Monitoring -- methods KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72705489?accountid=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+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.atitle=Review+of+indoor+emission+source+models.+Part+2.+Parameter+estimation.&rft.au=Guo%2C+Zhishi&rft.aulast=Guo&rft.aufirst=Zhishi&rft.date=2002-01-01&rft.volume=120&rft.issue=3&rft.spage=551&rft.isbn=&rft.btitle=&rft.title=Environmental+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.issn=02697491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-03-19 N1 - Date created - 2002-11-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Escherichia coli and total coliforms in water and sediments at lake marinas. AN - 72697409; 12442800 AB - Escherichia coli, a fecal coliform, and total coliforms were monitored between September 1999 and October 2001 in five marinas at Lake Texoma, located on the Oklahoma and Texas border. The general trend was that densities of E. coli were lower in the summer season due to the lower loading of fecal material into Lake Texoma and the ecological conditions of the lake, such as more vigorous grazing by protozoa and less viability of E. coli at an elevated temperature. The densities of total coliforms greatly increased in the summer. E. coli levels increased with depth, and the bottom water samples had higher densities of E. coli mainly due to their association with particles. There was a direct relationship between amount of gasoline sold, which was related to recreational boating activity, and the resuspension of E. coli. This indicated that recreational boating activity in lake marinas may have resuspended bottom sediments with bound E. coli, and the presence of E. coli in marinas was not an indication of recent fecal contamination. E. coli were detected in the largest densities at the boat dock points, followed by the gasoline filling station, and marina entrance. In addition, enumeration of bacteria in bottom sediment showed that the densities of E. coli and total coliforms in sediment were much higher compared to those in lake water. JF - Environmental pollution (Barking, Essex : 1987) AU - An, Youn-Joo AU - Kampbell, Donald H AU - Breidenbach, G Peter AD - US Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Ada, OK 74820, USA. anyjoo@ewha.ac.kr Y1 - 2002 PY - 2002 DA - 2002 SP - 771 EP - 778 VL - 120 IS - 3 SN - 0269-7491, 0269-7491 KW - Index Medicus KW - Ships KW - Enterobacteriaceae -- isolation & purification KW - Geologic Sediments KW - Environmental Monitoring KW - Water Pollution KW - Escherichia coli -- isolation & purification KW - Fresh Water KW - Water Microbiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72697409?accountid=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+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.atitle=Escherichia+coli+and+total+coliforms+in+water+and+sediments+at+lake+marinas.&rft.au=An%2C+Youn-Joo%3BKampbell%2C+Donald+H%3BBreidenbach%2C+G+Peter&rft.aulast=An&rft.aufirst=Youn-Joo&rft.date=2002-01-01&rft.volume=120&rft.issue=3&rft.spage=771&rft.isbn=&rft.btitle=&rft.title=Environmental+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.issn=02697491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-03-19 N1 - Date created - 2002-11-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Review of indoor emission source models. Part 1. Overview. AN - 72697315; 12442780 AB - Indoor emission source models are mainly used as a component in indoor air quality (IAQ) modeling, which, in turn, is part of exposure and risk modeling. They are also widely used to interpret the experimental data obtained from environmental chambers and buildings. This paper compiles 52 indoor emission source models found in the literature. Together, they represent the achievements that IAQ modelers have made in recent years. While most models have a certain degree of usefulness, genuine predictive models are still few, and there is undoubtedly much room for improvement. This review consists of two parts. Part 1--this paper-provides an overview of the 52 models, briefly discussing their validity, usefulness, limitations, and flaws (if any). Part 2 focuses on parameter estimation, a topic that is critically important to modelers but has not been systematically discussed. JF - Environmental pollution (Barking, Essex : 1987) AU - Guo, Zhishi AD - US Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Research Triangle Park, NC 27711, USA. guo.zhishi@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 533 EP - 549 VL - 120 IS - 3 SN - 0269-7491, 0269-7491 KW - Index Medicus KW - Risk Assessment KW - Air Pollution, Indoor KW - Environmental Monitoring -- methods KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72697315?accountid=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+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.atitle=Review+of+indoor+emission+source+models.+Part+1.+Overview.&rft.au=Guo%2C+Zhishi&rft.aulast=Guo&rft.aufirst=Zhishi&rft.date=2002-01-01&rft.volume=120&rft.issue=3&rft.spage=533&rft.isbn=&rft.btitle=&rft.title=Environmental+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.issn=02697491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-03-19 N1 - Date created - 2002-11-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Spider webs as environmental indicators. AN - 72688938; 12442796 AB - Analysis of spider webs from limestone arches in New South Wales, Australia showed levels of lead and zinc to be several times higher at Jenolan Caves than reference sites at Abercrombie and Wombeyan Caves. The high concentrations at Jenolan were attributed to emissions from motor vehicles that travel through the arch. Analysis of water-soluble ions in webs from Jenolan and Abercrombie Caves showed large differences between the sites, which could be explained by differences in the geology and biology of the cave environments. Spider webs proved useful indicators of environmental chemistry and undoubtedly have applications beyond the cave environments studied here. JF - Environmental pollution (Barking, Essex : 1987) AU - Hose, G C AU - James, J M AU - Gray, M R AD - Department of Environmental Sciences, University of Technology, Sydney, NSW, Australia. hoseg@epa.nsw.gov.au Y1 - 2002 PY - 2002 DA - 2002 SP - 725 EP - 733 VL - 120 IS - 3 SN - 0269-7491, 0269-7491 KW - Environmental Pollutants KW - 0 KW - Metals, Heavy KW - Vehicle Emissions KW - Index Medicus KW - Animals KW - New South Wales KW - Environmental Monitoring KW - Spiders KW - Environmental Pollutants -- analysis KW - Metals, Heavy -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72688938?accountid=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+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.atitle=Spider+webs+as+environmental+indicators.&rft.au=Hose%2C+G+C%3BJames%2C+J+M%3BGray%2C+M+R&rft.aulast=Hose&rft.aufirst=G&rft.date=2002-01-01&rft.volume=120&rft.issue=3&rft.spage=725&rft.isbn=&rft.btitle=&rft.title=Environmental+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.issn=02697491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-03-19 N1 - Date created - 2002-11-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Identification of calcium-dependent and -independent signaling pathways involved in polychlorinated biphenyl-induced cyclic AMP-responsive element-binding protein phosphorylation in developing cortical neurons. AN - 72670575; 12421622 AB - Cyclic AMP (cAMP)-responsive element-binding protein (CREB) is a transcription factor important in developing nervous system cells and is activated by a variety of signaling molecules. Aroclor 1254 (A1254), a polychlorinated biphenyl mixture, perturbs Ca(2+) homeostasis and increases CREB phosphorylation in rat neonatal cortical cell cultures in a time- and concentration-dependent manner. The present experiments determined that the cell type responding to A1254 with Ca(2+) increases and phosphorylated CREB (phospho-CREB) was predominantly of neuronal morphology and microtubule-associated protein (MAP2)-positive phenotype. Similarly, glutamate (100 microM) increased phospho-CREB immunoreactivity selectively in MAP2-immunopositive cells. Using Western blotting and immunocytochemical techniques, we identified key signal transduction pathways operative in phosphorylating CREB in cortical cell cultures and examined their participation in 3 ppm A1254-induced CREB activation. Cortical cultures treated with glutamate, forskolin or the phorbol ester phorbol 12-myristate 13-acetate exhibited robust increases in phospho-CREB. Tetrodotoxin (1 microM) completely inhibited CREB phosphorylation by A1254, suggesting that synaptic activity is involved in A1254-induced CREB activation. Buffering [Ca(2+)](i) with bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid tetrakis(acetoxymethyl) ester in the absence of extracellular Ca(2+) partially inhibited A1254-induced CREB phosphorylation. Inhibition of mitogen-activated protein kinase (10 microM U0126) or protein kinase C (PKC; bisindoylmaleimide, 5 microM) activation did not inhibit A1254-induced CREB phosphorylation. By contrast, inhibition of protein kinase A (PKA) with 100 microM PKA inhibitor peptide, PKI, blocked A1254-induced CREB phosphorylation. Thus, we examined whether A1254 activates PKA by increasing cAMP; 10 microM forskolin, but not A1254, elevated intracellular cAMP levels. These results indicate that in neocortical cells in culture, CREB phosphorylation occurs via Ca(2+)-, PKA-, and PKC-dependent pathways. Furthermore, A1254-induced CREB phosphorylation occurs predominantly in neurons, is dependent on synaptic activity and mediated by Ca(2+)- and PKA-dependent pathways. JF - Neuroscience AU - Inglefield, J R AU - Mundy, W R AU - Meacham, C A AU - Shafer, T J AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA. Y1 - 2002 PY - 2002 DA - 2002 SP - 559 EP - 573 VL - 115 IS - 2 SN - 0306-4522, 0306-4522 KW - Antithyroid Agents KW - 0 KW - Carcinogens KW - Cyclic AMP Response Element-Binding Protein KW - Chlorodiphenyl (54% Chlorine) KW - 11097-69-1 KW - Cyclic AMP-Dependent Protein Kinases KW - EC 2.7.11.11 KW - Tetradecanoylphorbol Acetate KW - NI40JAQ945 KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Rats KW - Neuroglia -- metabolism KW - Cyclic AMP-Dependent Protein Kinases -- metabolism KW - Cerebral Cortex -- cytology KW - Carcinogens -- pharmacology KW - Animals KW - Rats, Long-Evans KW - Synaptic Transmission -- drug effects KW - Cerebral Cortex -- growth & development KW - Tetradecanoylphorbol Acetate -- pharmacology KW - Synaptic Transmission -- physiology KW - Neuroglia -- drug effects KW - Phosphorylation -- drug effects KW - Chlorodiphenyl (54% Chlorine) -- pharmacology KW - Calcium -- metabolism KW - Signal Transduction -- physiology KW - Cyclic AMP Response Element-Binding Protein -- metabolism KW - Neurons -- metabolism KW - Neurons -- drug effects KW - Signal Transduction -- drug effects KW - Antithyroid Agents -- pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72670575?accountid=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=Neuroscience&rft.atitle=Identification+of+calcium-dependent+and+-independent+signaling+pathways+involved+in+polychlorinated+biphenyl-induced+cyclic+AMP-responsive+element-binding+protein+phosphorylation+in+developing+cortical+neurons.&rft.au=Inglefield%2C+J+R%3BMundy%2C+W+R%3BMeacham%2C+C+A%3BShafer%2C+T+J&rft.aulast=Inglefield&rft.aufirst=J&rft.date=2002-01-01&rft.volume=115&rft.issue=2&rft.spage=559&rft.isbn=&rft.btitle=&rft.title=Neuroscience&rft.issn=03064522&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-01-23 N1 - Date created - 2002-11-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Biaxial flex-fatigue and viral penetration of natural rubber latex gloves before and after artificial aging. AN - 72667757; 12418018 AB - Barrier integrity of unaged and oven-aged (at 70 degrees C) natural rubber latex examination gloves was assessed with a biaxial flex-fatigue method where failure was detected electronically, and by live viral penetration testing performed according to a modified version of ASTM F1671-97a. When no change in barrier properties was detected during flex testing, no virus passage was found after viral challenge. Conversely, when a change in the barrier properties was indicated by the electrical signal, virus passage was found in 74% of the specimens. Flex-fatigue results indicated that unaged test specimens from powdered (PD) and powder-free (PF) nonchlorinated gloves had significantly longer fatigue lives than powder-free chlorinated (CL) gloves from the same manufacturer. Biaxial flexing of oven-aged glove specimens showed a marginal increase in fatigue life for the PF gloves, but no increase for the PD gloves. The fatigue life of the CL gloves was observed to increase significantly after oven aging. However, this appears to be due to a design feature of the test apparatus, wherein peak volume displacement of the worked specimen is held constant. An aging-induced change in the viscoelastic properties of the CL gloves-permanent deformation of the specimens early in the fatigue test-relieves the stress magnitude applied as the test progresses. Thus, permanent deformation acts as a confounding factor in measuring durability of latex gloves by fixed displacement flex-fatigue. Copyright 2002 Wiley Periodicals, Inc. JF - Journal of biomedical materials research AU - Schwerin, Matthew R AU - Walsh, Donna L AU - Coleman Richardson, D AU - Kisielewski, Richard W AU - Kotz, Richard M AU - Routson, Licia B AU - David Lytle, C AD - Office of Science and Technology (HFZ-150), Center for Devices and Radiological Health, Food and Drug Administration, 9200 Corporate Boulevard, Rockville, Maryland 20852, USA. mrs@cdrh.fda.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 739 EP - 745 VL - 63 IS - 6 SN - 0021-9304, 0021-9304 KW - Biocompatible Materials KW - 0 KW - Chlorine Compounds KW - Powders KW - Rubber KW - 9006-04-6 KW - Index Medicus KW - Bacteriophage phi X 174 -- isolation & purification KW - Hot Temperature KW - Stress, Mechanical KW - Humans KW - In Vitro Techniques KW - Materials Testing KW - Time Factors KW - Gloves, Protective -- adverse effects KW - Gloves, Protective -- virology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72667757?accountid=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+biomedical+materials+research&rft.atitle=Biaxial+flex-fatigue+and+viral+penetration+of+natural+rubber+latex+gloves+before+and+after+artificial+aging.&rft.au=Schwerin%2C+Matthew+R%3BWalsh%2C+Donna+L%3BColeman+Richardson%2C+D%3BKisielewski%2C+Richard+W%3BKotz%2C+Richard+M%3BRoutson%2C+Licia+B%3BDavid+Lytle%2C+C&rft.aulast=Schwerin&rft.aufirst=Matthew&rft.date=2002-01-01&rft.volume=63&rft.issue=6&rft.spage=739&rft.isbn=&rft.btitle=&rft.title=Journal+of+biomedical+materials+research&rft.issn=00219304&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-06-13 N1 - Date created - 2002-11-05 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Development of marine water quality criteria for the USA. AN - 72625911; 12398371 AB - The US Environmental Protection Agency has developed guidelines for deriving numerical national water quality criteria for the protection of aquatic organisms and their uses. These guidelines provide the method for deriving water quality criteria, including minimum data base requirements, data evaluation procedures, and calculations. The guidelines have been in place for a long time, and states have used them to derive water quality standards for their water bodies. More recent efforts have been directed towards the development of technical guidance based on the concept that bioassessment and biocriteria programs for estuaries and near coastal waters are interrelated and are critical components of comprehensive water resource protection and management. This is a holistic approach to protection and management, integrating biological assessments into traditional chemical and physical evaluations and augmenting the established water quality criteria. The method for deriving water quality criteria and the approach for biocriteria development for marine systems are described. JF - Marine pollution bulletin AU - Russo, R C AD - National Exposure Research Laboratory, Office of Research and Development, US Environmental Protection Agency, Athens, GA 30605-2700, USA. russo.rosemarie@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 84 EP - 91 VL - 45 IS - 1-12 SN - 0025-326X, 0025-326X KW - Index Medicus KW - United States KW - Environmental Monitoring KW - Animals KW - United States Environmental Protection Agency KW - Quality Control KW - Risk Assessment KW - Water Pollution -- statistics & numerical data KW - Guidelines as Topic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72625911?accountid=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=Marine+pollution+bulletin&rft.atitle=Development+of+marine+water+quality+criteria+for+the+USA.&rft.au=Russo%2C+R+C&rft.aulast=Russo&rft.aufirst=R&rft.date=2002-01-01&rft.volume=45&rft.issue=1-12&rft.spage=84&rft.isbn=&rft.btitle=&rft.title=Marine+pollution+bulletin&rft.issn=0025326X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-02-12 N1 - Date created - 2002-10-25 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Alternative methods for the median lethal dose (LD(50)) test: the up-and-down procedure for acute oral toxicity. AN - 72514573; 12391399 AB - The authors have developed an improved version of the up-and-down procedure (UDP) as one of the replacements for the traditional acute oral toxicity test formerly used by the Organisation for Economic Co-operation and Development member nations to characterize industrial chemicals, pesticides, and their mixtures. This method improves the performance of acute testing for applications that use the median lethal dose (classic LD50) test while achieving significant reductions in animal use. It uses sequential dosing, together with sophisticated computer-assisted computational methods during the execution and calculation phases of the test. Staircase design, a form of sequential test design, can be applied to acute toxicity testing with its binary experimental endpoints (yes/no outcomes). The improved UDP provides a point estimate of the LD50 and approximate confidence intervals in addition to observed toxic signs for the substance tested. It does not provide information about the dose-response curve. Computer simulation was used to test performance of the UDP without the need for additional laboratory validation. JF - ILAR journal AU - Rispin, Amy AU - Farrar, David AU - Margosches, Elizabeth AU - Gupta, Kailash AU - Stitzel, Katherine AU - Carr, Gregory AU - Greene, Michael AU - Meyer, William AU - McCall, Deborah AD - US Environmental Protection Agency, Washington, DC, USA. Y1 - 2002 PY - 2002 DA - 2002 SP - 233 EP - 243 VL - 43 IS - 4 SN - 1084-2020, 1084-2020 KW - Xenobiotics KW - 0 KW - Index Medicus KW - Rats KW - Animals KW - Computer Simulation KW - Dose-Response Relationship, Drug KW - Animal Welfare KW - Lethal Dose 50 KW - Models, Statistical KW - Mice KW - Xenobiotics -- toxicity KW - Male KW - Female KW - Animal Testing Alternatives KW - Toxicity Tests, Acute -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72514573?accountid=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=ILAR+journal&rft.atitle=Alternative+methods+for+the+median+lethal+dose+%28LD%2850%29%29+test%3A+the+up-and-down+procedure+for+acute+oral+toxicity.&rft.au=Rispin%2C+Amy%3BFarrar%2C+David%3BMargosches%2C+Elizabeth%3BGupta%2C+Kailash%3BStitzel%2C+Katherine%3BCarr%2C+Gregory%3BGreene%2C+Michael%3BMeyer%2C+William%3BMcCall%2C+Deborah&rft.aulast=Rispin&rft.aufirst=Amy&rft.date=2002-01-01&rft.volume=43&rft.issue=4&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=ILAR+journal&rft.issn=10842020&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-11-21 N1 - Date created - 2002-10-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Incorporating the 3Rs into regulatory scientific practices. AN - 72190758; 12388846 AB - The Office of Prevention, Pesticides, and Toxic Substances (OPPTS) of the US Environmental Protection Agency (EPA) grapples with testing issues on a daily basis. In this discussion, the current practices within OPPTS that relate to refining, reducing, and replacing (the 3Rs of) animal use are explained, based on the authors' experience. Pertinent background about EPA and OPPTS is first described, and then some broad opportunities for implementing the 3Rs are reviewed. Finally, information about how the programs in OPPTS are making progress with regard to the 3Rs is presented. JF - ILAR journal AU - Sterling, Sherry AU - Rispin, Amy AD - US Environmental Protection Agency, Washington, DC, USA. Y1 - 2002 PY - 2002 DA - 2002 SP - S18 EP - S20 VL - 43 Suppl SN - 1084-2020, 1084-2020 KW - Xenobiotics KW - 0 KW - Index Medicus KW - United States KW - Animals KW - United States Environmental Protection Agency KW - Risk Assessment KW - Animal Testing Alternatives -- legislation & jurisprudence KW - Toxicity Tests -- methods KW - Animal Welfare -- legislation & jurisprudence KW - Xenobiotics -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72190758?accountid=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=ILAR+journal&rft.atitle=Incorporating+the+3Rs+into+regulatory+scientific+practices.&rft.au=Sterling%2C+Sherry%3BRispin%2C+Amy&rft.aulast=Sterling&rft.aufirst=Sherry&rft.date=2002-01-01&rft.volume=43+Suppl&rft.issue=&rft.spage=S18&rft.isbn=&rft.btitle=&rft.title=ILAR+journal&rft.issn=10842020&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-11-25 N1 - Date created - 2002-10-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Environmental factors associated with a spectrum of neurodevelopmental deficits. AN - 72071306; 12216063 AB - A number of environmental agents have been shown to demonstrate neurotoxic effects either in human or laboratory animal studies. Critical windows of vulnerability to the effects of these agents occur both pre- and postnatally. The nervous system is relatively unique in that different parts are responsible for different functional domains, and these develop at different times (e.g., motor control, sensory, intelligence and attention). In addition, the many cell types in the brain have different windows of vulnerability with varying sensitivities to environmental agents. This review focuses on two environmental agents, lead and methylmercury, to illustrate the neurobehavioral and cognitive effects that can result from early life exposures. Special attention is paid to distinguishing between the effects detected following episodes of poisoning and those detected following lower dose exposures. Perinatal and childhood exposure to high doses of lead results in encephalopathy and convulsions. Lower-dose lead exposures have been associated with impairment in intellectual function and attention. At high levels of prenatal exposure, methylmercury produces mental retardation, cerebral palsy and visual and auditory deficits in children of exposed mothers. At lower levels of methylmercury exposure, the effects in children have been more subtle. Other environmental neurotoxicants that have been shown to produce developmental neurotoxicity include polychlorinated biphenyls (PCBs), dioxins, pesticides, ionizing radiation, environmental tobacco smoke, and maternal use of alcohol, tobacco, marijuana and cocaine. Exposure to environmental agents with neurotoxic effects can result in a spectrum of adverse outcomes from severe mental retardation and disability to more subtle changes in function depending on the timing and dose of the chemical agent. Copyright 2002 Wiley-Liss, Inc. JF - Mental retardation and developmental disabilities research reviews AU - Mendola, Pauline AU - Selevan, Sherry G AU - Gutter, Suzanne AU - Rice, Deborah AD - National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. Mendola.Pauline@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 188 EP - 197 VL - 8 IS - 3 SN - 1080-4013, 1080-4013 KW - Dioxins KW - 0 KW - Environmental Pollutants KW - Methylmercury Compounds KW - Pesticides KW - Tobacco Smoke Pollution KW - Lead KW - 2P299V784P KW - Polychlorinated Biphenyls KW - DFC2HB4I0K KW - Index Medicus KW - Maternal Exposure -- adverse effects KW - Dioxins -- adverse effects KW - Animals KW - Humans KW - Nervous System -- drug effects KW - Alcohol Drinking -- adverse effects KW - Child KW - Pesticides -- adverse effects KW - Comorbidity KW - Polychlorinated Biphenyls -- adverse effects KW - Child, Preschool KW - Japan -- epidemiology KW - Lead -- adverse effects KW - Methylmercury Compounds -- poisoning KW - Adult KW - Tobacco Smoke Pollution -- adverse effects KW - Methylmercury Compounds -- adverse effects KW - Environmental Exposure KW - Mexico -- epidemiology KW - Adolescent KW - United States -- epidemiology KW - Male KW - Female KW - Radiation, Ionizing KW - Developmental Disabilities -- chemically induced KW - Mercury Poisoning, Nervous System -- epidemiology KW - Environmental Pollutants -- poisoning KW - Lead Poisoning, Nervous System -- epidemiology KW - Developmental Disabilities -- epidemiology KW - Neurotoxicity Syndromes -- epidemiology KW - Environmental Pollutants -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72071306?accountid=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=Mental+retardation+and+developmental+disabilities+research+reviews&rft.atitle=Environmental+factors+associated+with+a+spectrum+of+neurodevelopmental+deficits.&rft.au=Mendola%2C+Pauline%3BSelevan%2C+Sherry+G%3BGutter%2C+Suzanne%3BRice%2C+Deborah&rft.aulast=Mendola&rft.aufirst=Pauline&rft.date=2002-01-01&rft.volume=8&rft.issue=3&rft.spage=188&rft.isbn=&rft.btitle=&rft.title=Mental+retardation+and+developmental+disabilities+research+reviews&rft.issn=10804013&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-10-03 N1 - Date created - 2002-09-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Inhibition of retinoid activity by components of a paper mill effluent. AN - 71927760; 12125723 AB - A cell line stably transfected with reporter genes activated by retinoic acid was used to test a paper mill effluent for the presence of retinoids or components that interfere with retinoic acid-stimulated gene transcription. No retinoids were detected in effluent or control water. However, effluent water significantly decreased reporter activity stimulated by all-trans-retinoic acid, while activity stimulated by 9-cis-retinoic acid was unaffected. In a limited fractionation through a C-18 solid phase-exchange column the inhibitory activity was retained in the aqueous fraction, indicating that the activity was polar. JF - Environmental pollution (Barking, Essex : 1987) AU - Schoff, Patrick K AU - Ankley, Gerald T AD - Mid-Continent Ecology Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Duluth, Minnesota 55811, USA. pschoff@nrri.umn.edu Y1 - 2002 PY - 2002 DA - 2002 SP - 1 EP - 4 VL - 119 IS - 1 SN - 0269-7491, 0269-7491 KW - Industrial Waste KW - 0 KW - Receptors, Retinoic Acid KW - Water Pollutants KW - Tretinoin KW - 5688UTC01R KW - Index Medicus KW - Paper KW - Animals KW - Tumor Cells, Cultured KW - Transcription, Genetic KW - Mice KW - Cell Line KW - Receptors, Retinoic Acid -- genetics KW - Tretinoin -- pharmacology KW - Industrial Waste -- adverse effects KW - Water Pollutants -- adverse effects KW - Genes, Reporter KW - Receptors, Retinoic Acid -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71927760?accountid=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+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.atitle=Inhibition+of+retinoid+activity+by+components+of+a+paper+mill+effluent.&rft.au=Schoff%2C+Patrick+K%3BAnkley%2C+Gerald+T&rft.aulast=Schoff&rft.aufirst=Patrick&rft.date=2002-01-01&rft.volume=119&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Environmental+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.issn=02697491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-12-17 N1 - Date created - 2002-07-19 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Induction of genotoxic damage is not correlated with the ability to methylate arsenite in vitro in the leukocytes of four mammalian species. AN - 71897477; 12112384 AB - Arsenic is a natural drinking water contaminant that impacts the health of large populations of people throughout the world; however, the mode or mechanism by which arsenic induces cancer is unclear. In a series of in vitro studies, we exposed leukocytes from humans, mice, rats, and guinea pigs to a range of sodium arsenite concentrations to determine whether the lymphocytes from these species showed differential sensitivity to the induction of micronuclei (MN) assessed in cytochalasin B-induced binucleate cells. We also determined the capacity of the leukocytes to methylate arsenic by measuring the production of MMA [monomethylarsinic acid (MMA(V)) and monomethylarsonous acid (MMA(III))] and DMA [dimethylarsinic acid (DMA(V)) and dimethylarsonous acid (DMA(III))]. The results indicate that cells treated for 2 hr at the G(0) stage of the cell cycle with sodium arsenite showed only very small to negligible increases in MN after mitogenic stimulation. Treatment of actively cycling cells produced induction of MN with increasing arsenite concentration, with the human, rat, and mouse lymphocytes being much more sensitive to MN induction than those of the guinea pig. These data gave an excellent fit to a linear model. The leukocytes of all four species, including the guinea pig (a species previously thought not to methylate arsenic), were able to methylate arsenic, but there was no clear correlation between the ability to methylate arsenic and the induction of MN. JF - Environmental and molecular mutagenesis AU - Peng, B AU - Sharma, R AU - Mass, M J AU - Kligerman, A D AD - Environmental Carcinogenesis Division MD-68, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. Y1 - 2002 PY - 2002 DA - 2002 SP - 323 EP - 332 VL - 39 IS - 4 SN - 0893-6692, 0893-6692 KW - Arsenites KW - 0 KW - Sodium Compounds KW - Cytochalasin B KW - 3CHI920QS7 KW - sodium arsenite KW - 48OVY2OC72 KW - Index Medicus KW - Rats KW - Cytochalasin B -- metabolism KW - Regression Analysis KW - Animals KW - Guinea Pigs KW - Cells, Cultured KW - Humans KW - Resting Phase, Cell Cycle KW - Mice KW - Methylation KW - Arsenites -- toxicity KW - Sodium Compounds -- toxicity KW - Leukocytes -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71897477?accountid=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=Induction+of+genotoxic+damage+is+not+correlated+with+the+ability+to+methylate+arsenite+in+vitro+in+the+leukocytes+of+four+mammalian+species.&rft.au=Peng%2C+B%3BSharma%2C+R%3BMass%2C+M+J%3BKligerman%2C+A+D&rft.aulast=Peng&rft.aufirst=B&rft.date=2002-01-01&rft.volume=39&rft.issue=4&rft.spage=323&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 - 2002-08-23 N1 - Date created - 2002-07-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Pilot-scale studies on the effect of bromine addition on the emissions of chlorinated organic combustion by-products. AN - 71875325; 12099495 AB - The addition of brominated organic compounds to the feed of a pilot-scale incinerator burning chlorinated waste has been found previously, under some circumstances, to enhance emissions of volatile and semivolatile organic chlorinated products of incomplete combustion (PICs) including polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDDs/Fs). This phenomenon appears to be sensitive to temperature and combustion conditions. This paper reports on a study to evaluate the emissions of organic combustion by-products while varying amounts of bromine (Br) and chlorine (Cl) are being fed into a pilot-scale incinerator burning surrogate waste materials. The surrogate waste was fed at a constant molar halogen input rate, with varying Br/Cl molar ratios. In these tests, an approximately 30% decrease in the total PCDD/F concentrations due to the addition of Br was observed. This decrease appears to be a decrease only in the chlorinated dioxin and furan species; other halogenated dioxins and furans were formed instead. PCDD/F homologue distribution shifted towards the higher chlorinated species. Perhalogenated or nearly perhalogenated mixed bromo-chloro furans were also observed in quantities that could potentially account for the observed decrease in PCDDs/Fs. This research illustrates the need for careful trial burn planning if Br will be present in the facility's feed-stock during normal operation. JF - Waste management (New York, N.Y.) AU - Lemieux, P M AU - Stewart, E S AU - Ryan, J V AD - US Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Research Triangle Park, NC 27711, USA. lemieux.paul@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 381 EP - 389 VL - 22 IS - 4 SN - 0956-053X, 0956-053X KW - Benzofurans KW - 0 KW - Dibenzofurans, Polychlorinated KW - Environmental Pollutants KW - Polychlorinated Dibenzodioxins KW - Soil Pollutants KW - Polychlorinated Biphenyls KW - DFC2HB4I0K KW - Bromine KW - SBV4XY874G KW - Index Medicus KW - Incineration KW - Temperature KW - Forecasting KW - Polychlorinated Dibenzodioxins -- analogs & derivatives KW - Polychlorinated Dibenzodioxins -- analysis KW - Bromine -- chemistry KW - Refuse Disposal KW - Polychlorinated Biphenyls -- analysis KW - Environmental Pollutants -- analysis KW - Benzofurans -- analysis KW - Soil Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71875325?accountid=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=Waste+management+%28New+York%2C+N.Y.%29&rft.atitle=Pilot-scale+studies+on+the+effect+of+bromine+addition+on+the+emissions+of+chlorinated+organic+combustion+by-products.&rft.au=Lemieux%2C+P+M%3BStewart%2C+E+S%3BRyan%2C+J+V&rft.aulast=Lemieux&rft.aufirst=P&rft.date=2002-01-01&rft.volume=22&rft.issue=4&rft.spage=381&rft.isbn=&rft.btitle=&rft.title=Waste+management+%28New+York%2C+N.Y.%29&rft.issn=0956053X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-12-17 N1 - Date created - 2002-07-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Workshop 1 (synthesis): relation between industry and other water interests in a catchment context--facilitated stakeholder dialogue. AN - 71706677; 12019811 AB - Workshop 1 considered the nature and identity of water stakeholders and how best to facilitate an open, transparent, democratic process of dialogue leading to agreed strategies to address water problems. JF - Water science and technology : a journal of the International Association on Water Pollution Research AU - Fallenius, U B AU - Fry, A E AD - Swedish Environmental Protection Agency, Stockholm. Y1 - 2002 PY - 2002 DA - 2002 SP - 137 EP - 139 VL - 45 IS - 8 SN - 0273-1223, 0273-1223 KW - Industrial Waste KW - 0 KW - Index Medicus KW - Policy Making KW - Water Movements KW - Communication KW - Environment KW - Water Supply KW - Water Pollution -- prevention & control KW - Interprofessional Relations KW - Industry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71706677?accountid=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=Water+science+and+technology+%3A+a+journal+of+the+International+Association+on+Water+Pollution+Research&rft.atitle=Workshop+1+%28synthesis%29%3A+relation+between+industry+and+other+water+interests+in+a+catchment+context--facilitated+stakeholder+dialogue.&rft.au=Fallenius%2C+U+B%3BFry%2C+A+E&rft.aulast=Fallenius&rft.aufirst=U&rft.date=2002-01-01&rft.volume=45&rft.issue=8&rft.spage=137&rft.isbn=&rft.btitle=&rft.title=Water+science+and+technology+%3A+a+journal+of+the+International+Association+on+Water+Pollution+Research&rft.issn=02731223&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-11-05 N1 - Date created - 2002-05-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Water quality at five marinas in Lake Texoma as related to methyl tert-butyl ether (MTBE). AN - 71683742; 12009130 AB - Water quality in five marinas on Lake Texoma, located on the Oklahoma and Texas border, was monitored between June 1999 and November 2000. Focus was to evaluate lake water associated with marinas for methyl tert-butyl ether (MTBE). Lake water was collected at locations identified as marina entrance, gasoline filling station, and boat dock. Occurrence of MTBE showed a direct seasonal trend with recreational boating activity at marina areas. There was a positive correlation with powerboat usage ratio, which was directly related to the gallons of gasoline sold. Sampling before and after the high boat use holiday weekends determined the apparent influence of powerboat activity on MTBE contamination. Boat dock locations were the most sensitive sites to MTBE contamination, possibly due to gasoline spillage during engine startup. The most common compound of the BTEX series found with MTBE was toluene and co-occurrence was most frequent at gasoline filling stations. JF - Environmental pollution (Barking, Essex : 1987) AU - An, Youn-Joo AU - Kampbell, Donald H AU - Sewell, Guy W AD - Oak Ridge Research Associateship Program, US Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Ada, OK 74820, USA. an.youn-joo@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 331 EP - 336 VL - 118 IS - 3 SN - 0269-7491, 0269-7491 KW - Carcinogens, Environmental KW - 0 KW - Gasoline KW - Methyl Ethers KW - Solvents KW - Vehicle Emissions KW - Water Pollutants, Chemical KW - methyl tert-butyl ether KW - 29I4YB3S89 KW - Index Medicus KW - Ships KW - Environmental Monitoring KW - Oklahoma KW - Recreation KW - Texas KW - Vehicle Emissions -- analysis KW - Water Pollutants, Chemical -- analysis KW - Solvents -- analysis KW - Gasoline -- analysis KW - Carcinogens, Environmental -- analysis KW - Methyl Ethers -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71683742?accountid=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+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.atitle=Water+quality+at+five+marinas+in+Lake+Texoma+as+related+to+methyl+tert-butyl+ether+%28MTBE%29.&rft.au=An%2C+Youn-Joo%3BKampbell%2C+Donald+H%3BSewell%2C+Guy+W&rft.aulast=An&rft.aufirst=Youn-Joo&rft.date=2002-01-01&rft.volume=118&rft.issue=3&rft.spage=331&rft.isbn=&rft.btitle=&rft.title=Environmental+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.issn=02697491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-11-05 N1 - Date created - 2002-05-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - CONF T1 - Use of genomic data in risk assessment. AN - 71640588; 11983054 JF - Genome biology AU - Rockett, John C Y1 - 2002 PY - 2002 DA - 2002 SP - 1 VL - 3 IS - 4 KW - Hazardous Substances KW - 0 KW - Index Medicus KW - Neoplasms -- drug therapy KW - Hazardous Substances -- adverse effects KW - Humans KW - Environmental Exposure KW - Genetic Predisposition to Disease KW - Pharmacogenetics KW - Neoplasms -- genetics KW - Risk Assessment KW - Toxicology -- trends KW - Genomics -- trends UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71640588?accountid=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=Genome+biology&rft.atitle=Use+of+genomic+data+in+risk+assessment.&rft.au=Rockett%2C+John+C&rft.aulast=Rockett&rft.aufirst=John&rft.date=2002-01-01&rft.volume=3&rft.issue=4&rft.spage=REPORTS4011&rft.isbn=&rft.btitle=&rft.title=Genome+biology&rft.issn=1474-760X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-06-17 N1 - Date created - 2002-05-01 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Suspended particle adhesion on aquatic plant surfaces: implications for 137Cs and 133Cs uptake rates and water-to-plant concentration ratios. AN - 71599266; 11954717 AB - Suspended particle adhesion on aquatic biota can significantly increase the apparent concentration of radionuclides above their endogenous value, leading to an overestimation of the uptake rate and concentration ratios. This study is an attempt to assess quantitatively the importance of suspended particle adhesion on periphyton samples (biological material coating submerged surfaces). The concentrations of 137Cs and stable Cs (133Cs) in periphyton, suspended particles and filtered water were measured to determine the net water-to-periphyton concentration ratios for 137Cs and stable Cs. The net amount of 133Cs (or 137Cs) taken up by periphyton was calculated by subtracting from the total amount of 133Cs (or 137Cs) on the collected material (periphyton + inorganic particles), the 133Cs (or 137Cs) due to the inorganic particles adhering to periphyton. The mass of suspended particles adhering to the periphyton surface was calculated using scandium as an indicator of the mineral fraction of the suspended particles. The relationship between the concentration ratios for 137Cs and stable Cs and suspended particle adhesion on periphyton external surfaces is discussed. JF - Journal of environmental radioactivity AU - Sansone, U AU - Belli, M AU - Jeran, Z AU - Kanivets, V V AU - Radojko, J AU - Riccardi, M AU - Voitsekhovitch, O V AD - National Environmental Protection Agency (ANPA), Roma, Italy. sansone@anpa.it Y1 - 2002 PY - 2002 DA - 2002 SP - 257 EP - 271 VL - 59 IS - 3 SN - 0265-931X, 0265-931X KW - Cesium Radioisotopes KW - 0 KW - Water Pollutants, Radioactive KW - Index Medicus KW - Cesium Radioisotopes -- pharmacokinetics KW - Particle Size KW - Phytoplankton -- physiology KW - Plant Roots -- physiology KW - Water Pollutants, Radioactive -- pharmacokinetics KW - Plant Roots -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71599266?accountid=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+radioactivity&rft.atitle=Suspended+particle+adhesion+on+aquatic+plant+surfaces%3A+implications+for+137Cs+and+133Cs+uptake+rates+and+water-to-plant+concentration+ratios.&rft.au=Sansone%2C+U%3BBelli%2C+M%3BJeran%2C+Z%3BKanivets%2C+V+V%3BRadojko%2C+J%3BRiccardi%2C+M%3BVoitsekhovitch%2C+O+V&rft.aulast=Sansone&rft.aufirst=U&rft.date=2002-01-01&rft.volume=59&rft.issue=3&rft.spage=257&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+radioactivity&rft.issn=0265931X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-10-01 N1 - Date created - 2002-04-16 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Quantitation of molecular endpoints for the dose-response component of cancer risk assessment. AN - 71515756; 11890462 AB - Cancer risk assessment involves the steps of hazard identification, dose-response assessment, exposure assessment, and risk characterization. The rapid advances in the use of molecular biology approaches has had an impact on all 4 components, but the greatest overall current and future impact will be on the dose-response assessment because this requires an understanding of the mechanisms of carcinogenesis, both background and induced by environmental agents. In this regard, hazard identification is a qualitative assessment and dose-response is a quantitative estimate. Thus, the latter will ultimately require a quantitative assessment of molecular endpoints that are used to describe the dose-response for cancer. It has been possible for many years to quantitate alterations at the level of the single gene. For example, analysis of mutation frequency by phenotypic selection, analysis of transcription (mRNA) by Northern blot, analysis of translation (proteins) by Western blot, and analysis of kinetics of metabolism from metabolite levels. However, it is becoming clear that it is necessary when considering risk for adverse health outcomes to develop quantitative approaches for whole cell phenotypes or organ effects. For example, cancer is a whole tissue phenotype, not a feature of single gene mutations, in spite of the multistep (multimutation) mode of formation of a tumor. Thus, there is the need to quantitate the circuitry of a cell: the metabolic/biochemical pathways, genetic regulation pathways, and signaling pathways in normal and stressed conditions. The hypothesis presented by Hanahan and Weinberg of the requirement for 6 acquired characteristics for tumor development, independent of tissue type and species or inducer, seems to provide a viable approach. This hypothesis can be addressed through whole cell molecular assessment using microarrays and quantitative PCR together with the emerging proteomic approaches. This is the world of the new computational cell biology. JF - Toxicologic pathology AU - Preston, R Julian AD - Environmental Carcinogenesis Division, US Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. preston.julian@epa.gov PY - 2002 SP - 112 EP - 116 VL - 30 IS - 1 SN - 0192-6233, 0192-6233 KW - Biomarkers KW - 0 KW - Carcinogens KW - Index Medicus KW - Gene Expression Regulation, Neoplastic KW - Animals KW - Dose-Response Relationship, Drug KW - Humans KW - Carcinogenicity Tests -- standards KW - Neoplasms -- pathology KW - Endpoint Determination -- standards KW - Endpoint Determination -- methods KW - Neoplasms -- chemically induced KW - Neoplasms -- epidemiology KW - Carcinogens -- toxicity KW - Carcinogenicity Tests -- methods KW - Risk Assessment -- standards KW - Risk Assessment -- methods KW - Neoplasms -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71515756?accountid=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=Quantitation+of+molecular+endpoints+for+the+dose-response+component+of+cancer+risk+assessment.&rft.au=Preston%2C+R+Julian&rft.aulast=Preston&rft.aufirst=R&rft.date=2002-01-01&rft.volume=30&rft.issue=1&rft.spage=112&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 - 2002-09-26 N1 - Date created - 2002-03-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Committee on Residues and Related Topics. Single class multiresidue methods for organic compounds. AN - 71492382; 11878613 JF - Journal of AOAC International AU - Soderberg, David AU - AOAC Committee on Residues and Related Topics AD - U.S. Environmental Protection Agency, OPP, HED, Washington, DC 20460, USA. soderberg.david@epamail.epa.gov ; AOAC Committee on Residues and Related Topics PY - 2002 SP - 258 EP - 261 VL - 85 IS - 1 SN - 1060-3271, 1060-3271 KW - Organic Chemicals KW - 0 KW - Index Medicus KW - Crops, Agricultural KW - Organic Chemicals -- blood KW - Food Analysis -- standards KW - Drug Residues -- analysis KW - Organic Chemicals -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71492382?accountid=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=Committee+on+Residues+and+Related+Topics.+Single+class+multiresidue+methods+for+organic+compounds.&rft.au=Soderberg%2C+David%3BAOAC+Committee+on+Residues+and+Related+Topics&rft.aulast=Soderberg&rft.aufirst=David&rft.date=2002-01-01&rft.volume=85&rft.issue=1&rft.spage=258&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 - 2002-08-20 N1 - Date created - 2002-03-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Improving structure-linked access to publicly available chemical toxicity information. AN - 71486341; 11865667 AB - Publicly available toxicity databases serve as the central resource in efforts to develop algorithms for assessing potential chemical toxicity. File standardization and linkage of chemical structures with chemical toxicity information are essential first steps in providing broad access to existing toxicity information, for deriving useful structure-activity relationship (SAR) models, performing analog searches, and estimating the potential toxicity of new chemicals. This review will focus on current efforts to improve structure-linked access to publicly available sources of toxicity information, outlining current web-based resources as well as two new database initiatives for standardizing and consolidating public chemical toxicity information. JF - Current opinion in drug discovery & development AU - Richard, Ann M AU - Williams, ClarLynda R AU - Cariello, Neal F AD - US Environmental Protection Agency, Mail Drop 68, National Health and Environmental Effects Research Laboratories, Research Triangle Park, NC 27711, USA. richard.ann@epamail.epa.gov Y1 - 2002/01// PY - 2002 DA - January 2002 SP - 136 EP - 143 VL - 5 IS - 1 SN - 1367-6733, 1367-6733 KW - Index Medicus KW - Computer Communication Networks KW - Predictive Value of Tests KW - Internet KW - Databases, Factual -- trends KW - Toxicology -- standards KW - Drug Evaluation, Preclinical -- standards KW - Toxicology -- trends KW - Databases, Factual -- standards KW - Structure-Activity Relationship UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71486341?accountid=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+drug+discovery+%26+development&rft.atitle=Improving+structure-linked+access+to+publicly+available+chemical+toxicity+information.&rft.au=Richard%2C+Ann+M%3BWilliams%2C+ClarLynda+R%3BCariello%2C+Neal+F&rft.aulast=Richard&rft.aufirst=Ann&rft.date=2002-01-01&rft.volume=5&rft.issue=1&rft.spage=136&rft.isbn=&rft.btitle=&rft.title=Current+opinion+in+drug+discovery+%26+development&rft.issn=13676733&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-08-12 N1 - Date created - 2002-02-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Phytoextraction of toxic metals: a review of biological mechanisms. AN - 71476753; 11837415 AB - Remediation of sites contaminated with toxic metals is particularly challenging. Unlike organic compounds, metals cannot be degraded, and the cleanup usually requires their removal. However, this energy-intensive approach can be prohibitively expensive. In addition, the metal removing process often employs stringent physicochemical agents which can dramatically inhibit soil fertility with subsequent negative impacts on the ecosystem. Phytoremediation has been proposed as a cost-effective, environmental-friendly alternative technology. A great deal of research indicates that plants have the genetic potential to remove many toxic metals from the soil. Despite this potential, phytoremediation is yet to become a commercially available technology. Progress in the field is hindered by a lack of understanding of complex interactions in the rhizosphere and plant-based mechanisms which allow metal translocation and accumulation in plants. In this paper, four research areas relevant to metal phytoextraction from contaminated soil are reviewed. The review concludes with an assessment of the current status of technology deployment and suggestions for future phytoremediation research. JF - Journal of environmental quality AU - Lasat, Mitch M AD - U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental Research, Washington, DC 20460, USA. lasat.mitch@epa.gov PY - 2002 SP - 109 EP - 120 VL - 31 IS - 1 SN - 0047-2425, 0047-2425 KW - Metals, Heavy KW - 0 KW - Soil Pollutants KW - Index Medicus KW - Environmental Pollution -- prevention & control KW - Plant Roots -- physiology KW - Biodegradation, Environmental KW - Biological Availability KW - Soil Microbiology KW - Metals, Heavy -- pharmacokinetics KW - Plants KW - Soil Pollutants -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71476753?accountid=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+quality&rft.atitle=Phytoextraction+of+toxic+metals%3A+a+review+of+biological+mechanisms.&rft.au=Lasat%2C+Mitch+M&rft.aulast=Lasat&rft.aufirst=Mitch&rft.date=2002-01-01&rft.volume=31&rft.issue=1&rft.spage=109&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 completed - 2002-07-16 N1 - Date created - 2002-02-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Surveillance systems for pesticide intoxications. AN - 71462952; 11843434 AB - The intent of this article is to provide an overview of surveillance systems dealing with pesticide intoxications. Surveillance, medical monitoring, and the components of a surveillance system are discussed. Information is presented on how to make a diagnosis of environmental or occupational pesticide intoxication, examples of different case definitions, and the steps in investigating a pesticide disease outbreak. Examples from various countries are used to illustrate acute pesticide intoxication surveillance, pesticide exposure surveillance, and medical monitoring of pesticide-exposed workers. Finally, a list of informational sources for pesticide toxicology, medical diagnosis and treatment, and surveillance data is provided. It is anticipated that this information will assist those individuals or organizations seeking to develop such a system, evaluate an existing system, or gain a better understanding of data derived from such systems. JF - International journal of occupational and environmental health AU - Osorio, Ana Maria AD - US Environmental Protection Agency-Office of Pesticide Programs, Washington DC 20460, USA. Osorio.AnaMaria@epa.gov PY - 2002 SP - 1 EP - 13 VL - 8 IS - 1 SN - 1077-3525, 1077-3525 KW - Pesticides KW - 0 KW - Index Medicus KW - Information Systems KW - Diagnosis, Differential KW - Humans KW - Occupational Exposure KW - Occupational Health -- statistics & numerical data KW - Pesticides -- poisoning KW - Population Surveillance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71462952?accountid=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=International+journal+of+occupational+and+environmental+health&rft.atitle=Surveillance+systems+for+pesticide+intoxications.&rft.au=Osorio%2C+Ana+Maria&rft.aulast=Osorio&rft.aufirst=Ana&rft.date=2002-01-01&rft.volume=8&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=International+journal+of+occupational+and+environmental+health&rft.issn=10773525&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-07-30 N1 - Date created - 2002-02-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Causes of mortality of free-ranging Florida panthers. AN - 71448332; 11838201 AB - The Florida panther (Puma concolor coryi) is one of the most endangered mammals, with the entire population estimated to consist of only 30-50 adult animals. Between 1978 and 1999, 73 free-ranging Florida panther carcasses were submitted for postmortem evaluation, of which 47 (64%) were radiocollared and 26 (36%) were uncollared cats. Overall, mortality of panthers > 6-mo-old was due to vehicular trauma in 25 (35%), intraspecific aggression in 19 (26%), illegal kill in seven (10%), research activities in two (3%), infectious diseases in two (3%), esophageal tear in one (1%), pleuritis in one (1%), pyothorax in one (1%), aortic aneurysm in one (1%), atrial septal defect in one (1%), and causes of death were undetermined in 13 (18%) due to autolysis. Of the 25 panthers that were killed by vehicular trauma, 20 (80%) died between October and April. This coincides with increased number of winter visitors to south Florida. Among radiocollared panthers, intraspecific aggression was the primary cause of mortality for 19 (41%) dead cats. Of these cats, 16 (84%) were males and 14 (88%) were either less than 3 or more than 8-yr-old. These animals were probably fighting to establish or retain territory. Among the 26 uncollared panthers, vehicular trauma was the primary cause of mortality and was responsible for 16 (62%) deaths. This study documents the causes of mortality and the age, sex, and seasonal mortality trends for both radiocollared and uncollared free-ranging endangered Florida panthers over a 21-yr-period. JF - Journal of wildlife diseases AU - Taylor, Sharon K AU - Buergelt, Claus D AU - Roelke-Parker, Melody E AU - Homer, Bruce L AU - Rotstein, Dave S AD - Florida Fish & Wildlife Conservation Commission, 4005 South Main Street, Gainesville, Florida 32601, USA. taylor.sharon@epa.gov Y1 - 2002/01// PY - 2002 DA - January 2002 SP - 107 EP - 114 VL - 38 IS - 1 SN - 0090-3558, 0090-3558 KW - Index Medicus KW - Animals KW - Age Factors KW - Seasons KW - Retrospective Studies KW - Bites and Stings -- mortality KW - Bites and Stings -- veterinary KW - Animal Identification Systems KW - Aggression KW - Male KW - Female KW - Behavior, Animal KW - Florida -- epidemiology KW - Animals, Wild KW - Accidents, Traffic -- mortality KW - Carnivora KW - Wounds and Injuries -- veterinary KW - Wounds and Injuries -- mortality KW - Cause of Death UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71448332?accountid=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+wildlife+diseases&rft.atitle=Causes+of+mortality+of+free-ranging+Florida+panthers.&rft.au=Taylor%2C+Sharon+K%3BBuergelt%2C+Claus+D%3BRoelke-Parker%2C+Melody+E%3BHomer%2C+Bruce+L%3BRotstein%2C+Dave+S&rft.aulast=Taylor&rft.aufirst=Sharon&rft.date=2002-01-01&rft.volume=38&rft.issue=1&rft.spage=107&rft.isbn=&rft.btitle=&rft.title=Journal+of+wildlife+diseases&rft.issn=00903558&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-06-20 N1 - Date created - 2002-02-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Lack of teratogenicity of microcystin-LR in the mouse and toad. AN - 71419202; 11807924 AB - Microcystin-LR (MC-LR) is a cyanobacterial toxin generated by the organism Microcystis aeruginosa. Although the hepatotoxicity of this chemical has been characterized, the potential developmental toxicity in vertebrates has not been well studied. The purpose of this study was to elucidate the effects of this toxin on the in vivo and in vitro development of mammals and the development of an Anuran (toad). Initial acute toxicity experiments with female CD-1 mice were accomplished with MC-LR administered i.p. in saline. Lethality occurred at 128 and 160 microg kg (-1) and histopathology revealed massive hepatic necrosis with diffuse hemorrhage. Developmental toxicity studies were done with MC-LR administered i.p. for 2-day periods: gestation days 7-8, 9-10 or 11-12. Doses used ranged from 2 to 128 microg kg(-1). On gestation day 17, fetuses were weighed and analyzed for gross morphological and skeletal defects. No treatment-related differences were seen in litter size, viability, weight or the incidence of anomalies. Groups of dams dosed with 32-128 microg kg(-1) on gestation days 7-8, 9-10 or 11-12 were allowed to give birth and the growth and development of their pups were followed postnatally. There were no significant effects noted in the offspring of the treated dams. Neurulation-staged CD-1 mouse conceptuses were exposed to 50-1000 nM MC-LR in whole embryo culture for 24 h. No significant increase in abnormalities or developmental delays was observed. Finally, exposure of the developing toad. Bufo arenarum was done from stage 17 (tail bud) for 10 days at concentrations of 1-20 mg l(-1). No effect on morphological development or survival was noted in any exposed groups. These data indicate that microcystin does not appear to affect development adversely in the mouse (in vivo or in vitro) or the toad at the doses and exposure parameters used. Copyright 2002 John Wiley & Sons, Ltd. JF - Journal of applied toxicology : JAT AU - Chernoff, N AU - Hunter, E S AU - Hall, L L AU - Rosen, M B AU - Brownie, C F AU - Malarkey, D AU - Marr, M AU - Herkovits, J AD - US EPA, ORD, National Health and Ecological Effects Research Laboratory, Research Triangle Park, NC 27711, USA. PY - 2002 SP - 13 EP - 17 VL - 22 IS - 1 SN - 0260-437X, 0260-437X KW - Enzyme Inhibitors KW - 0 KW - Microcystins KW - Peptides, Cyclic KW - cyanoginosin LR KW - EQ8332842Y KW - Index Medicus KW - Maternal Exposure -- adverse effects KW - Animals KW - Cyanobacteria -- pathogenicity KW - Survival Rate KW - In Vitro Techniques KW - Toxicity Tests, Acute KW - Lethal Dose 50 KW - Mice KW - Female KW - Peptides, Cyclic -- administration & dosage KW - Enzyme Inhibitors -- administration & dosage KW - Embryo, Nonmammalian -- abnormalities KW - Enzyme Inhibitors -- toxicity KW - Embryo, Mammalian -- abnormalities KW - Peptides, Cyclic -- toxicity KW - Embryo, Nonmammalian -- drug effects KW - Embryo, Mammalian -- drug effects KW - Bufo arenarum -- abnormalities UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71419202?accountid=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=Lack+of+teratogenicity+of+microcystin-LR+in+the+mouse+and+toad.&rft.au=Chernoff%2C+N%3BHunter%2C+E+S%3BHall%2C+L+L%3BRosen%2C+M+B%3BBrownie%2C+C+F%3BMalarkey%2C+D%3BMarr%2C+M%3BHerkovits%2C+J&rft.aulast=Chernoff&rft.aufirst=N&rft.date=2002-01-01&rft.volume=22&rft.issue=1&rft.spage=13&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 - 2002-04-30 N1 - Date created - 2002-01-24 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A permeable reactive barrier for treatment of heavy metals. AN - 71405821; 11798047 AB - Historical storage of ore concentrate containing sulfide minerals at an industrial site in British Columbia, Canada, has resulted in widespread contamination of the underlying soil and ground water. The oxidation of sulfide minerals has released significant quantities of heavy metals, including Cu, Cd, Co, Ni, and Zn, into the ground water. A pilot-scale, compost-based, sulfate-reducing permeable reactive barrier was installed in the path of the dissolved heavy-metal plume. The permeable reactive barrier uses sulfate-reducing bacteria to promote precipitation of heavy metals as insoluble metal sulfides. Monitoring over a 21-month period indicated significant removal of heavy metals within the barrier. Copper concentrations declined from a mean concentration of 3,630 pg/L in the influent to a mean concentration within the barrier of 10.5 microg/L, Cd from 15.3 microg/L to 0.2 microg/L, Co from 5.3 microg/L to 1.1 microg/L, Ni from 131 pg/L to 33.0 microg/L, and Zn from 2,410 microg/L to 136 pg/L. Within the lower half of the barrier where tidal influences were more limited and sulfate-reducing conditions were better maintained, mean treatment levels of 2.9 microg/L (Cu), 0.1 microg/L (Cd), 0.4 microg/L (Co), 2.7 microg/L (Ni), and 6.3 microg/L (Zn) were observed. JF - Ground water AU - Ludwig, Ralph D AU - McGregor, Rick G AU - Blowes, David W AU - Benner, Shawn G AU - Mountjoy, Keith AD - US Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Ada, OK 74820, USA. ludwig.ralph@epa.gov PY - 2002 SP - 59 EP - 66 VL - 40 IS - 1 SN - 0017-467X, 0017-467X KW - Industrial Waste KW - 0 KW - Metals, Heavy KW - Soil Pollutants KW - Carbon KW - 7440-44-0 KW - Index Medicus KW - Soil Microbiology KW - Permeability KW - Solubility KW - Chemical Precipitation KW - Water Pollution -- prevention & control KW - Metals, Heavy -- chemistry KW - Soil Pollutants -- analysis KW - Metals, Heavy -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71405821?accountid=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=Ground+water&rft.atitle=A+permeable+reactive+barrier+for+treatment+of+heavy+metals.&rft.au=Ludwig%2C+Ralph+D%3BMcGregor%2C+Rick+G%3BBlowes%2C+David+W%3BBenner%2C+Shawn+G%3BMountjoy%2C+Keith&rft.aulast=Ludwig&rft.aufirst=Ralph&rft.date=2002-01-01&rft.volume=40&rft.issue=1&rft.spage=59&rft.isbn=&rft.btitle=&rft.title=Ground+water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-06-19 N1 - Date created - 2002-01-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A pulse of endosulfan-contaminated sediment affects macroinvertebrates in artificial streams. AN - 71403000; 11800549 AB - The toxicity of the organochlorine pesticide endosulfan to macroinvertebrate communities was tested using a system of 24 artificial streams. Macroinvertebrate communities in the streams were exposed to a range of endosulfan concentrations for a 12-h period and then monitored for 96 h. Endosulfan was prebound to fine river sediment and applied to the streams as a contaminated sediment slurry. This did not cause changes in the structure of benthic communities; however, significant changes (P<0.05) in the abundance of several macroinvertebrate taxa in drift were detected in the streams receiving the highest (6.14 microg/L) dose. Increased drift may have implications for recolonization processes in lowland rivers, and, as such, pulses of contaminated sediment are likely to result in significant effects on macroinvertebrate populations and communities. This study highlights the utility of artificial stream systems for detecting sublethal effects and the need for population and community-level endpoints to be included in such studies. JF - Ecotoxicology and environmental safety AU - Hose, Grant C AU - Lim, Richard P AU - Hyne, Ross V AU - Pablo, Fleur AD - Department of Environmental Sciences, University of Technology, Sydney, Australia. hoseg@epa.nsw.gov.au Y1 - 2002/01// PY - 2002 DA - January 2002 SP - 44 EP - 52 VL - 51 IS - 1 SN - 0147-6513, 0147-6513 KW - Hydrocarbons, Chlorinated KW - 0 KW - Insecticides KW - Water Pollutants, Chemical KW - Endosulfan KW - OKA6A6ZD4K KW - Index Medicus KW - Ecosystem KW - Geologic Sediments -- chemistry KW - Animals KW - Population Dynamics KW - Water Movements KW - Environmental Exposure KW - Insecticides -- adverse effects KW - Food Chain KW - Water Pollutants, Chemical -- adverse effects KW - Invertebrates KW - Endosulfan -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71403000?accountid=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=A+pulse+of+endosulfan-contaminated+sediment+affects+macroinvertebrates+in+artificial+streams.&rft.au=Hose%2C+Grant+C%3BLim%2C+Richard+P%3BHyne%2C+Ross+V%3BPablo%2C+Fleur&rft.aulast=Hose&rft.aufirst=Grant&rft.date=2002-01-01&rft.volume=51&rft.issue=1&rft.spage=44&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 - 2002-02-20 N1 - Date created - 2002-01-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Activation of EGF receptors mediates pulmonary vasoconstriction induced by residual oil fly ash. AN - 71394857; 11792073 AB - Residual oil fly ash (ROFA) is a constituent of pollutant particles that can produce lung injury and activate protein tyrosine phosphorylation cascade. In this study, we determined whether or not protein tyrosine phosphorylation caused lung injury, and if so, identified critical tyrosinephosphorylated proteins that mediated the injury. ROFA was instilled intratracheally into perfused rabbit lungs and injury responses, including increase in pulmonary artery pressure (Ppa), lung weight gain, as well as release of interleukin (IL)-1beta, IL-6, IL-8, and nitrite/nitrate were measured. ROFA increased Ppa and IL-1beta, but inhibited nitrite/nitrate accumulation. Vanadyl sulfate at concentration equivalent to the amount of vanadium detected in the perfusate of ROFA-treated lungs induced similar changes. ROFA enhanced tyrosine phosphorylation of lung proteins, including a 170-kDa protein, likely the epidermal growth factor (EGF) receptor as shown by immunoprecipitation. Pretreatment with genistein, a tyrosine kinase inhibitor, blocked the increase in Ppa and tyrosine phosphorylation of the 170-kDa protein. Intravascular administration of human EGF increased Ppa, and pretreatment with PD153035, an EGF receptor-specific tyrosine kinase inhibitor, attenuated ROFA-induced pulmonary vasoconstriction. These results indicate that tyrosine phosphorylation of EGF receptors in the lung, possibly as a result of inhibition of protein tyrosine phosphatases, mediates constriction of pulmonary vessels induced by ROFA. JF - Experimental lung research AU - Huang, Yuh-Chin T AU - Wu, Weidong AU - Ghio, Andrew J AU - Carter, Jacqueline D AU - Silbajoris, Robert AU - Devlin, Robert B AU - Samet, James M AD - National Health and Environmental Effects Research Laboratory, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, North Carolina, USA. huang.tony@epa.gov PY - 2002 SP - 19 EP - 38 VL - 28 IS - 1 SN - 0190-2148, 0190-2148 KW - 4-((3-bromophenyl)amino)-6,7-dimethoxyquinazoline KW - 0 KW - Air Pollutants KW - Coal Ash KW - Enzyme Inhibitors KW - Inflammation Mediators KW - Interleukin-1 KW - Interleukin-6 KW - Interleukin-8 KW - Nitrates KW - Nitrites KW - Particulate Matter KW - Quinazolines KW - Recombinant Proteins KW - Tyrosine KW - 42HK56048U KW - Epidermal Growth Factor KW - 62229-50-9 KW - Carbon KW - 7440-44-0 KW - Protein-Tyrosine Kinases KW - EC 2.7.10.1 KW - Receptor, Epidermal Growth Factor KW - Index Medicus KW - Animals KW - Interleukin-8 -- secretion KW - Recombinant Proteins -- pharmacology KW - Perfusion KW - Interleukin-6 -- secretion KW - Nitrites -- metabolism KW - Humans KW - Nitrates -- metabolism KW - Rabbits KW - Epidermal Growth Factor -- pharmacology KW - Inflammation Mediators -- metabolism KW - Protein-Tyrosine Kinases -- antagonists & inhibitors KW - Phosphorylation KW - In Vitro Techniques KW - Enzyme Inhibitors -- pharmacology KW - Tyrosine -- metabolism KW - Interleukin-1 -- secretion KW - Quinazolines -- pharmacology KW - Male KW - Vasoconstriction -- physiology KW - Receptor, Epidermal Growth Factor -- drug effects KW - Receptor, Epidermal Growth Factor -- antagonists & inhibitors KW - Pulmonary Circulation -- drug effects KW - Vasoconstriction -- drug effects KW - Receptor, Epidermal Growth Factor -- physiology KW - Pulmonary Circulation -- physiology KW - Air Pollutants -- toxicity KW - Carbon -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71394857?accountid=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=Experimental+lung+research&rft.atitle=Activation+of+EGF+receptors+mediates+pulmonary+vasoconstriction+induced+by+residual+oil+fly+ash.&rft.au=Huang%2C+Yuh-Chin+T%3BWu%2C+Weidong%3BGhio%2C+Andrew+J%3BCarter%2C+Jacqueline+D%3BSilbajoris%2C+Robert%3BDevlin%2C+Robert+B%3BSamet%2C+James+M&rft.aulast=Huang&rft.aufirst=Yuh-Chin&rft.date=2002-01-01&rft.volume=28&rft.issue=1&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=Experimental+lung+research&rft.issn=01902148&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-07-09 N1 - Date created - 2002-01-15 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Localization of the sperm protein SP22 and inhibition of fertility in vivo and in vitro. AN - 71359158; 11780923 AB - We previously established that levels of the sperm membrane protein, SP22, are highly correlated with the fertility of sperm from the cauda epididymidis of rats exposed to both epididymal and testicular toxicants, and that a testis-specific SP22 transcript is expressed in postmeiotic germ cells. In this study, polyclonal and monoclonal antibodies were generated to study the expression of SP22 in the testis and epididymis, and to determine whether SP22 plays a coincidental or causal role in fertility. Polyclonal antiserum was raised in sheep against full-length recombinant rat SP22 (rSP22). Hybridoma clones were generated from mice immunized with rSP22 and boosted with native SP22; positive clones were used for ascites production. Immunoblots indicated that affinity-purified anti-rSP22 immunoglobulin (Ig) and ascites Ig recognized denatured and native SP22, respectively. Linear epitope mapping of the 189-amino acid SP22 sequence revealed 3 distinct peptide sequences recognized by anti-rSP22 Ig, and 1 sequence recognized by ascites Ig. Cytoplasm of round spermatids and heads of elongating/elongated spermatids immunostained with both anti-rSP22 and ascites antibodies. Isolated rete testis sperm revealed discrete staining over the cytoplasmic droplet, whereas staining was apparent over the equatorial segment of the head by the time sperm reached the caput epididymidis. Clear cells were, interestingly, immunostained along the length of the epididymis. Ascites Ig and anti-SP22 Ig each recognized the equatorial segment of sperm heads from rat, hamster, bull, rabbit, and human. Ascites Ig and affinity-purified anti-rSP22 Ig each significantly inhibited the fertility of cauda epididymal sperm from the rat in vivo, as well as the fertilization rates of cauda epididymal sperm in vitro. Moreover, affinity-purified anti-rSP22 significantly inhibited in vitro fertilization of both zona-intact and zona-free hamster oocytes, suggesting that SP22 may play a role in both the zona penetration and membrane fusion steps of fertilization. JF - Journal of andrology AU - Klinefelter, Gary R AU - Welch, Jeffrey E AU - Perreault, Sally D AU - Moore, Harry D AU - Zucker, Robert M AU - Suarez, Juan D AU - Roberts, Naomi L AU - Bobseine, Kathy AU - Jeffay, Susan AD - US Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Research Triangle Park, North Carolina 27711, USA. klinefelter.gary@epa.gov PY - 2002 SP - 48 EP - 63 VL - 23 IS - 1 SN - 0196-3635, 0196-3635 KW - Antibodies, Monoclonal KW - 0 KW - Microtubule-Associated Proteins KW - Recombinant Proteins KW - PARK7 protein, rat KW - EC 3.1.2.- KW - Protein Deglycase DJ-1 KW - Index Medicus KW - Animals KW - Amino Acid Sequence KW - Antibodies, Monoclonal -- pharmacology KW - Fertility -- immunology KW - Rats KW - Epididymis -- cytology KW - Rats, Sprague-Dawley KW - In Vitro Techniques KW - Recombinant Proteins -- immunology KW - Molecular Sequence Data KW - Species Specificity KW - Epitope Mapping KW - Male KW - Microtubule-Associated Proteins -- analysis KW - Microtubule-Associated Proteins -- chemistry KW - Spermatozoa -- immunology KW - Microtubule-Associated Proteins -- immunology KW - Spermatozoa -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71359158?accountid=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+andrology&rft.atitle=Localization+of+the+sperm+protein+SP22+and+inhibition+of+fertility+in+vivo+and+in+vitro.&rft.au=Klinefelter%2C+Gary+R%3BWelch%2C+Jeffrey+E%3BPerreault%2C+Sally+D%3BMoore%2C+Harry+D%3BZucker%2C+Robert+M%3BSuarez%2C+Juan+D%3BRoberts%2C+Naomi+L%3BBobseine%2C+Kathy%3BJeffay%2C+Susan&rft.aulast=Klinefelter&rft.aufirst=Gary&rft.date=2002-01-01&rft.volume=23&rft.issue=1&rft.spage=48&rft.isbn=&rft.btitle=&rft.title=Journal+of+andrology&rft.issn=01963635&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-05-30 N1 - Date created - 2002-01-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Dioxins and endometriosis: a plausible hypothesis. AN - 71351090; 11781160 AB - A potential connection exists between exposure to organochlorine chemicals and the increasing prevalence of endometriosis. Evidence shows that dioxin (2,3,7,8-tetrachlorodibenzo-p-dioxin) can increase the incidence and severity of the disease in monkeys and can promote the growth or survival of endometrial tissue implanted into rodents in a surgically induced model of endometriosis. The mechanism of the connection between organochlorine chemicals and endometriosis is not clear. Effects on growth factors, cytokines, and hormones (components of the immune and endocrine systems) are potential means of mediating the possible promotion of endometriosis by dioxins. Studies on epidemiology and on structure-activity relationships of organochlorine chemicals and endometriosis have been additional approaches to this problem. In this regard, toxic equivalence (TEQ) appears to be an important determinant of the effects of organochlorine chemicals on endometriosis. In this article, we review the literature related to endometriosis and dioxins and attempt to integrate the various sources of information that bolster the hypothesis connecting dioxins and endometriosis. JF - Environmental health perspectives AU - Birnbaum, Linda S AU - Cummings, Audrey M AD - National Health and Environmental Effects Research Laboratory, Office of Research and Development, U. S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. birnbaum.linda@epa.gov Y1 - 2002/01// PY - 2002 DA - January 2002 SP - 15 EP - 21 VL - 110 IS - 1 SN - 0091-6765, 0091-6765 KW - Dioxins KW - 0 KW - Environmental Pollutants KW - Index Medicus KW - Rats KW - Animals KW - Humans KW - Incidence KW - Mice KW - Female KW - Structure-Activity Relationship KW - Risk Assessment KW - Endometriosis -- epidemiology KW - Dioxins -- adverse effects KW - Endometriosis -- chemically induced KW - Environmental Exposure KW - Environmental Pollutants -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71351090?accountid=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=Dioxins+and+endometriosis%3A+a+plausible+hypothesis.&rft.au=Birnbaum%2C+Linda+S%3BCummings%2C+Audrey+M&rft.aulast=Birnbaum&rft.aufirst=Linda&rft.date=2002-01-01&rft.volume=110&rft.issue=1&rft.spage=15&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 - 2002-02-12 N1 - Date created - 2002-01-08 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Fertil Steril. 1990 May;53(5):921-5 [2332064] Environ Health Perspect. 1999 Oct;107 Suppl 5:687-91 [10502532] Am J Obstet Gynecol. 2000 Apr;182(4):767-75 [10764452] Environ Health Perspect. 2000 Jun;108(6):553-7 [10856030] Food Addit Contam. 2000 Apr;17(4):275-88 [10912242] Toxicol Sci. 2000 Aug;56(2):374-81 [10910996] J Mol Endocrinol. 2000 Aug;25(1):35-42 [10915216] Ind Health. 2000 Jul;38(3):259-68 [10943072] Toxicol Sci. 2001 Jan;59(1):147-59 [11134554] Cancer. 1979 Apr;43(4):1562-7 [445352] Fertil Steril. 1980 Jun;33(6):649-53 [6769717] Drugs. 1980 May;19(5):331-41 [6993180] Aviat Space Environ Med. 1983 Aug;54(8):718-24 [6312953] Fertil Steril. 1985 Nov;44(5):684-94 [4054348] Prog Clin Biol Res. 1990;323:1-14 [2406741] Zentralbl Gynakol. 1992;114(12):593-602 [1285483] N Engl J Med. 1993 Jun 17;328(24):1759-69 [8110213] Fundam Appl Toxicol. 1993 Nov;21(4):433-41 [8253297] Fertil Steril. 1994 Sep;62(3):635-8 [8062962] Hum Reprod. 1994 Jun;9(6):1001-2 [7962366] Environ Health Perspect. 1994 Nov;102 Suppl 9:157-67 [7698077] Arch Toxicol. 1994;69(2):79-86 [7717865] Toxicol Appl Pharmacol. 1995 Jul;133(1):172-6 [7597705] Fundam Appl Toxicol. 1995 Sep;27(2):287-90 [8529825] Reprod Toxicol. 1995 May-Jun;9(3):233-8 [7579907] J Clin Endocrinol Metab. 1996 Jan;81(1):174-9 [8550748] Toxicol Lett. 1995 Dec;82-83:743-50 [8597137] Toxicol Appl Pharmacol. 1996 Mar;137(1):120-5 [8607137] Toxicol Appl Pharmacol. 1996 May;138(1):131-9 [8658502] Chem Biol Interact. 1996 Mar 25;100(2):97-112 [8646792] Neurotoxicol Teratol. 1996 May-Jun;18(3):305-13 [8725643] Fundam Appl Toxicol. 1996 May;31(1):42-55 [8998952] Hum Reprod. 1997 Feb;12(2):373-5 [9070728] Toxicol Ind Health. 1997 Jan-Feb;13(1):15-25 [9098947] J Clin Invest. 1997 Jun 15;99(12):2851-7 [9185507] Mol Pharmacol. 1997 Jul;52(1):30-7 [9224809] Environ Health Perspect. 1997 Jul;105(7):750-5 [9294722] Biochem Biophys Res Commun. 1997 Sep 18;238(2):338-42 [9299508] Toxicol Appl Pharmacol. 1997 Sep;146(1):11-20 [9299592] Toxicol Sci. 1999 Nov;52(1):45-9 [10568697] Biochem Pharmacol. 2000 Jan 1;59(1):65-85 [10605936] Endocr J. 1999 Dec;46(6):765-72 [10724351] Toxicology. 1997 Oct 19;122(3):229-40 [9328223] Toxicol Appl Pharmacol. 1997 Oct;146(2):237-44 [9344891] Fertil Steril. 1998 Feb;69(2):221-8 [9496332] Environ Health Perspect. 1998 Dec;106(12):775-92 [9831538] Gynecol Obstet Invest. 1999;47 Suppl 1:47-9; discussion 50 [10087428] Biochem Biophys Res Commun. 1999 Apr 13;257(2):259-63 [10198199] Toxicol Appl Pharmacol. 1992 May;114(1):97-107 [1585378] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Solubilization of polycyclic aromatic hydrocarbons by perfluorinated surfactant micelles. AN - 71349275; 11766807 AB - Due to their chemical and thermal stability, perfluorinated surfactants (PFSs) are promising materials for the development of novel environmental remediation applications. This stability also leads to the persistence of PFS in the environment; therefore, their properties and behavior should be well understood. This study focused on polycyclic aromatic hydrocarbon (PAH) and PFS interactions, particularly the solubilization of PAHs by PFS micelles. Naphthalene. phenanthrene, and pyrene were selected as representative PAHs and an anionic PFS, ammonium perfluorooctanoate (APFO) was used. Critical micelle concentration (CMC) values of APFO measured by surface tension, fluorescence probe, and solubility enhancement methods fell in the range of 20-30 mM at 22 +/- 1 degrees C. Apparent solubilities of molecular oxygen and PAHs in APFO micellar solutions depended linearly on the APFO concentration. Molar solubilization ratio (MSR) values were determined to be 9.50 x 10(-4), 4.17 x 10(-3), 2.31 x 10(-4), and 4.09 x 10(-5) and mole fraction micellar partition coefficient (Kmic) values were found to be 1.89 x 10(2), 9.50 x 10(2), 2.12 x 10(3), and 3.79 x 10(3) for oxygen, naphthalene, phenanthrene, and pyrene, respectively at 22 +/- 1 degrees C. log Kmic values for three PAHs were shown to be linearly correlated with the log values of octanol-water partition coefficients (log Kow). JF - Water research AU - An, Youn-Joo AU - Carraway, Elizabeth R AU - Schlautman, Mark A AD - Department of Civil Engineering, Texas A&M University, College Station 77843-3136, USA. an.youn-joo@epa.gov Y1 - 2002/01// PY - 2002 DA - January 2002 SP - 300 EP - 308 VL - 36 IS - 1 SN - 0043-1354, 0043-1354 KW - Fluorine Compounds KW - 0 KW - Micelles KW - Polycyclic Aromatic Hydrocarbons KW - Index Medicus KW - Environmental Pollution -- prevention & control KW - Solubility KW - Fluorine Compounds -- chemistry KW - Polycyclic Aromatic Hydrocarbons -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71349275?accountid=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=Water+research&rft.atitle=Solubilization+of+polycyclic+aromatic+hydrocarbons+by+perfluorinated+surfactant+micelles.&rft.au=An%2C+Youn-Joo%3BCarraway%2C+Elizabeth+R%3BSchlautman%2C+Mark+A&rft.aulast=An&rft.aufirst=Youn-Joo&rft.date=2002-01-01&rft.volume=36&rft.issue=1&rft.spage=300&rft.isbn=&rft.btitle=&rft.title=Water+research&rft.issn=00431354&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-04-23 N1 - Date created - 2001-12-19 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - PAH degradation by UV/H2O2 in perfluorinated surfactant solutions. AN - 71348164; 11766808 AB - Polycyclic aromatic hydrocarbons (PAHs) solubilized in perfluorinated surfactant (PFS) solutions were degraded by direct photolysis and UV/H2O2 process. The subsequent recovery and reuse of these surfactant solutions were also demonstrated. Phenanthrene and pyrene were selected as representative PAHs and an anionic PFS: ammonium perfluorooctanoate (APFO) was used. In our experiments, micellar APFO solutions retarded the phenanthrene photolysis and enhanced the pyrene photolysis. The results indicate that the photochemical reactivity of compound in micelles is strongly dependent on specific properties of the solubilizate, possibly due to the different excited state behaviors of compound. UV/H2O2 process exhibits a greatly enhanced rate of PAH photolysis in both water and APFO compared to direct photolysis. indicating that hydroxyl radicals may be generated or penetrated at the sites of PAHs solubilized in the micelles. Additionally. a smaller rate enhancement by UV/H2O2 in micelles than in water suggests that micelles provide some degree of protection from hydroxyl radical attack. The possibility of recovery and reuse of PFS has been demonstrated by measuring the solubilizing capacity of APFO after direct photolysis and UV/H2O2 process. Overall, this study demonstrates UV/H2O2 process can be an effective treatment method for not only PAH degradation but also surfactant recovery and reuse. JF - Water research AU - An, Youn-Joo AU - Carraway, Elizabeth R AD - Department of Civil Engineering Texas A&M University, College Station 77843-3136, USA. an.youn-joo@epa.gov Y1 - 2002/01// PY - 2002 DA - January 2002 SP - 309 EP - 314 VL - 36 IS - 1 SN - 0043-1354, 0043-1354 KW - Fluorine Compounds KW - 0 KW - Oxidants KW - Polycyclic Aromatic Hydrocarbons KW - Surface-Active Agents KW - Water Pollutants, Chemical KW - Hydroxyl Radical KW - 3352-57-6 KW - Hydrogen Peroxide KW - BBX060AN9V KW - Index Medicus KW - Photolysis KW - Ultraviolet Rays KW - Hydroxyl Radical -- chemistry KW - Water Pollutants, Chemical -- analysis KW - Water Pollution -- prevention & control KW - Fluorine Compounds -- chemistry KW - Oxidants -- chemistry KW - Polycyclic Aromatic Hydrocarbons -- chemistry KW - Hydrogen Peroxide -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71348164?accountid=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=Water+research&rft.atitle=PAH+degradation+by+UV%2FH2O2+in+perfluorinated+surfactant+solutions.&rft.au=An%2C+Youn-Joo%3BCarraway%2C+Elizabeth+R&rft.aulast=An&rft.aufirst=Youn-Joo&rft.date=2002-01-01&rft.volume=36&rft.issue=1&rft.spage=309&rft.isbn=&rft.btitle=&rft.title=Water+research&rft.issn=00431354&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-04-23 N1 - Date created - 2001-12-19 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Communication strategy of transboundary air pollution findings in a US-Mexico Border XXI program project. AN - 71330392; 11740622 AB - From 1996 to 1997, the US Environmental Protection Agency (EPA) and the Texas Natural Resource Conservation Commission (TNRCC) conducted an air quality study known as the Lower Rio Grande Valley Transboundary Air Pollution Project (TAPP). The study was a US-Mexico Border XXI program project and was developed in response to local community requests on a need for more air quality measurements and concerns about the health impact of local air pollutants; this included concerns about emissions from border-dependent industries in Mexico, known as maquiladoras. The TAPP was a follow-up study to environmental monitoring done by EPA in this area in 1993 and incorporated scientific and community participation in development, review of results, and public presentation of findings. In spite of this, critical remarks were leveled by community activists against the study's preliminary "good news" findings regarding local air quality and the influence of transboundary air pollution. To resolve these criticisms and to refine the findings to address these concerns, analyses included comparisons of daily and near real-time measurements to TNRCC effects screening levels and data from other studies along with wind sector analyses. Reassessment of the data suggested that although regional source emissions occurred and outliers of elevated pollutant levels were found, movement of air pollution across the border did not appear to cause noticeable deterioration of air quality. In spite of limitations stated to the community, the TAPP was presented as establishing a benchmark to assess current and future transboundary air quality in the Valley. The study has application in Border XXI Program or other air quality studies where transboundary transport is a concern since it involved interagency coordination, public involvement, and communication of scientifically sound results for local environmental protection efforts. JF - Environmental management AU - Mukerjee, Shaibal AD - US Environmental Protection Agency, National Exposure Research Laboratory (MD-47), Research Triangle Park, North Carolina 27711, USA. mukerjee.shaibal@epa.gov Y1 - 2002/01// PY - 2002 DA - January 2002 SP - 34 EP - 56 VL - 29 IS - 1 SN - 0364-152X, 0364-152X KW - Air Pollutants KW - 0 KW - Index Medicus KW - United States KW - Mexico KW - International Cooperation KW - Quality Control KW - Air Movements KW - Environmental Monitoring KW - Communication KW - Benchmarking KW - Air Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71330392?accountid=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+management&rft.atitle=Communication+strategy+of+transboundary+air+pollution+findings+in+a+US-Mexico+Border+XXI+program+project.&rft.au=Mukerjee%2C+Shaibal&rft.aulast=Mukerjee&rft.aufirst=Shaibal&rft.date=2002-01-01&rft.volume=29&rft.issue=1&rft.spage=34&rft.isbn=&rft.btitle=&rft.title=Environmental+management&rft.issn=0364152X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-03-05 N1 - Date created - 2001-12-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Resource-based niches provide a basis for plant species diversity and dominance in arctic tundra AN - 52157458; 2002-011381 JF - Nature (London) AU - McKane, Robert B AU - Johnson, Loretta C AU - Shaver, Gaius R AU - Nadelhoffer, Knute J AU - Rastetter, Edward B AU - Fry, Brian AU - Giblin, Anne E AU - Kielland, Knut AU - Kwiatkowski, Bonnie L AU - Laundre, James A AU - Murray, Georgia Y1 - 2002/01// PY - 2002 DA - January 2002 SP - 68 EP - 71 PB - Macmillan Journals, London VL - 415 IS - 6867 SN - 0028-0836, 0028-0836 KW - United States KW - soils KW - Plantae KW - isotopes KW - biomass KW - tundra KW - biochemistry KW - Arctic region KW - bioavailability KW - Toolik Lake KW - N-15 KW - stable isotopes KW - nitrogen KW - nutrients KW - case studies KW - habitat KW - arctic environment KW - ecology KW - Alaska KW - geochemistry KW - species diversity KW - niches KW - ammonia compound KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52157458?accountid=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=Resource-based+niches+provide+a+basis+for+plant+species+diversity+and+dominance+in+arctic+tundra&rft.au=McKane%2C+Robert+B%3BJohnson%2C+Loretta+C%3BShaver%2C+Gaius+R%3BNadelhoffer%2C+Knute+J%3BRastetter%2C+Edward+B%3BFry%2C+Brian%3BGiblin%2C+Anne+E%3BKielland%2C+Knut%3BKwiatkowski%2C+Bonnie+L%3BLaundre%2C+James+A%3BMurray%2C+Georgia&rft.aulast=McKane&rft.aufirst=Robert&rft.date=2002-01-01&rft.volume=415&rft.issue=6867&rft.spage=68&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 - 2002-01-01 N1 - Number of references - 26 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Alaska; ammonia compound; arctic environment; Arctic region; bioavailability; biochemistry; biomass; case studies; ecology; geochemistry; habitat; isotopes; N-15; niches; nitrogen; nutrients; Plantae; soils; species diversity; stable isotopes; Toolik Lake; tundra; United States ER - TY - JOUR T1 - Volatile organic compounds, specific conductance, and temperature in the bottom sediments of Mill Pond, Ashland, Massachusetts, April 2001 AN - 52123065; 2002-030029 JF - Open-File Report - U. S. Geological Survey AU - Church, Peter E AU - Lyford, Forest P AU - Clifford, Scott Y1 - 2002 PY - 2002 DA - 2002 SP - 10 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - chlorinated hydrocarbons KW - chlorobenzene KW - trichloroethane KW - Middlesex County Massachusetts KW - environmental analysis KW - temperature KW - ground water KW - conductivity KW - transport KW - Massachusetts KW - sediments KW - halogenated hydrocarbons KW - USGS KW - pollutants KW - pollution KW - potentiometric surface KW - volatiles KW - organic compounds KW - volatile organic compounds KW - lacustrine environment KW - Mill Pond KW - Ashland Massachusetts KW - pore water KW - lake sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52123065?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=Church%2C+Peter+E%3BLyford%2C+Forest+P%3BClifford%2C+Scott&rft.aulast=Church&rft.aufirst=Peter&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Volatile+organic+compounds%2C+specific+conductance%2C+and+temperature+in+the+bottom+sediments+of+Mill+Pond%2C+Ashland%2C+Massachusetts%2C+April+2001&rft.title=Volatile+organic+compounds%2C+specific+conductance%2C+and+temperature+in+the+bottom+sediments+of+Mill+Pond%2C+Ashland%2C+Massachusetts%2C+April+2001&rft.issn=01961497&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 - 14 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. incl. 1 table, sketch maps N1 - SuppNotes - Prepared in cooperation with the U.S. Environmental Protection Agency N1 - Last updated - 2014-03-14 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - Ashland Massachusetts; chlorinated hydrocarbons; chlorobenzene; conductivity; environmental analysis; ground water; halogenated hydrocarbons; lacustrine environment; lake sediments; Massachusetts; Middlesex County Massachusetts; Mill Pond; organic compounds; pollutants; pollution; pore water; potentiometric surface; sediments; temperature; transport; trichloroethane; United States; USGS; volatile organic compounds; volatiles ER - TY - JOUR T1 - Geology, hydrology, and water quality in the vicinity of a brownfield redevelopment site in Canton, Illinois AN - 52116355; 2002-038339 JF - Open-File Report - U. S. Geological Survey AU - Kay, Robert T AU - Cornue, David B AU - Ursic, James R Y1 - 2002 PY - 2002 DA - 2002 SP - 32 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - water quality KW - Fulton County Illinois KW - environmental analysis KW - ground water KW - transport KW - USGS KW - geochemistry KW - pH KW - hydrology KW - concentration KW - Illinois KW - pollutants KW - Canton Illinois KW - confined aquifers KW - pollution KW - hydrochemistry KW - aquifers KW - volatiles KW - organic compounds KW - metals KW - volatile organic compounds KW - industrial waste KW - hydraulic conductivity KW - waste disposal KW - brownfields KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52116355?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%3BCornue%2C+David+B%3BUrsic%2C+James+R&rft.aulast=Kay&rft.aufirst=Robert&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Geology%2C+hydrology%2C+and+water+quality+in+the+vicinity+of+a+brownfield+redevelopment+site+in+Canton%2C+Illinois&rft.title=Geology%2C+hydrology%2C+and+water+quality+in+the+vicinity+of+a+brownfield+redevelopment+site+in+Canton%2C+Illinois&rft.issn=01961497&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 - 12 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. incl. sect., 10 tables, sketch maps N1 - SuppNotes - Prepared in cooperation with the U.S. Environmental Protection Agency N1 - Last updated - 2014-03-14 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - aquifers; brownfields; Canton Illinois; concentration; confined aquifers; environmental analysis; Fulton County Illinois; geochemistry; ground water; hydraulic conductivity; hydrochemistry; hydrology; Illinois; industrial waste; metals; organic compounds; pH; pollutants; pollution; transport; United States; USGS; volatile organic compounds; volatiles; waste disposal; water quality ER - TY - JOUR T1 - Distribution of volatile organic compounds in sediments near Sutton Brook Disposal Area, Tewksbury, Massachusetts, May 2001 AN - 52097574; 2002-047743 JF - Open-File Report - U. S. Geological Survey AU - Church, Peter E AU - Lyford, Forest P AU - Clifford, Scott Y1 - 2002 PY - 2002 DA - 2002 SP - 16 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - chlorinated hydrocarbons KW - Tewksbury Massachusetts KW - stream sediments KW - pollutants KW - landfills KW - waste disposal sites KW - pollution KW - Middlesex County Massachusetts KW - petroleum products KW - distribution KW - ground water KW - Sutton Brook Disposal Area KW - volatiles KW - organic compounds KW - Massachusetts KW - volatile organic compounds KW - sediments KW - hydrocarbons KW - halogenated hydrocarbons KW - waste disposal KW - USGS KW - fluvial environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52097574?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=Church%2C+Peter+E%3BLyford%2C+Forest+P%3BClifford%2C+Scott&rft.aulast=Church&rft.aufirst=Peter&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Distribution+of+volatile+organic+compounds+in+sediments+near+Sutton+Brook+Disposal+Area%2C+Tewksbury%2C+Massachusetts%2C+May+2001&rft.title=Distribution+of+volatile+organic+compounds+in+sediments+near+Sutton+Brook+Disposal+Area%2C+Tewksbury%2C+Massachusetts%2C+May+2001&rft.issn=01961497&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 - 11 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. incl. 4 tables, sketch map N1 - SuppNotes - Prepared in cooperation with the U. S. Environmental Protection Agency N1 - Last updated - 2014-03-14 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - chlorinated hydrocarbons; distribution; fluvial environment; ground water; halogenated hydrocarbons; hydrocarbons; landfills; Massachusetts; Middlesex County Massachusetts; organic compounds; petroleum products; pollutants; pollution; sediments; stream sediments; Sutton Brook Disposal Area; Tewksbury Massachusetts; United States; USGS; volatile organic compounds; volatiles; waste disposal; waste disposal sites ER - TY - JOUR T1 - Geohydrology, water quality, and simulation of ground-water flow in the vicinity of a former waste-oil refinery near Westville, Indiana, 1997-2000 AN - 52096677; 2002-047775 JF - Water-Resources Investigations - U. S. Geological Survey AU - Duwelius, Richard F AU - Yeskis, Douglas J AU - Wilson, John T AU - Robinson, Bret A Y1 - 2002 PY - 2002 DA - 2002 SP - 161 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - water quality KW - geophysical surveys KW - contaminant plumes KW - preferential flow KW - simulation KW - La Porte County Indiana KW - environmental analysis KW - Westville Indiana KW - ground water KW - solvents KW - Indiana KW - electromagnetic methods KW - Porter County Indiana KW - dioxane KW - USGS KW - geochemistry KW - hydrology KW - concentration KW - well logs KW - pollutants KW - surface water KW - geophysical methods KW - pollution KW - petroleum products KW - hydrochemistry KW - aquifers KW - volatiles KW - organic compounds KW - volatile organic compounds KW - surveys KW - hydraulic conductivity KW - water wells KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52096677?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=Duwelius%2C+Richard+F%3BYeskis%2C+Douglas+J%3BWilson%2C+John+T%3BRobinson%2C+Bret+A&rft.aulast=Duwelius&rft.aufirst=Richard&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Geohydrology%2C+water+quality%2C+and+simulation+of+ground-water+flow+in+the+vicinity+of+a+former+waste-oil+refinery+near+Westville%2C+Indiana%2C+1997-2000&rft.title=Geohydrology%2C+water+quality%2C+and+simulation+of+ground-water+flow+in+the+vicinity+of+a+former+waste-oil+refinery+near+Westville%2C+Indiana%2C+1997-2000&rft.issn=0092332X&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 - 54 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - illus. incl. sects., 13 tables, sketch maps N1 - SuppNotes - Includes appendices; Prepared in cooperation with the U.S. Environmental Protection Agency N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - aquifers; concentration; contaminant plumes; dioxane; electromagnetic methods; environmental analysis; geochemistry; geophysical methods; geophysical surveys; ground water; hydraulic conductivity; hydrochemistry; hydrology; Indiana; La Porte County Indiana; organic compounds; petroleum products; pollutants; pollution; Porter County Indiana; preferential flow; simulation; solvents; surface water; surveys; United States; USGS; volatile organic compounds; volatiles; water quality; water wells; well logs; Westville Indiana ER - TY - JOUR T1 - Stratigraphic evidence of coseismic faulting and aseismic fault creep from exploratory trenches at Mt. Etna Volcano (Sicily, Italy) AN - 52072592; 2002-062187 AB - Recognition of coseismic and aseismic slip in trench exposures is a major goal in paleoseismology. To define stratigraphic criteria for discriminating between (1) fast earthquake-related slip and (2) slow quasi-continuous creep, we carried out several exploratory trenches along the eastern flank of Mt. Etna, where capable faults (active faults producing displacement at or near the surface) show both modes of movements with high slip rates and short recurrence intervals. Our sites have experienced predominant coseismic (Fondo Macchia) and aseismic (Mandra del Re) fault slip during historical times. At the Fondo Macchia site we trenched a normal fault scarp where approximately 20 cm of vertical offset occurred in 1971 and three other similar earthquakes repeated in the past 150 yr. Several erosional surfaces close to the fault zone in the footwall indicate that (1) a distinct and recognizable fault scarp free face retreated repeatedly, shaped by erosion and fault activity, and (2) the observed vertical displacement is a result of repeated scarp-forming earthquakes. At the Mandra del Re site a left-lateral strike-slip fault with a large vertical component dams the drainage of a small valley. A vertical fault slip rate of approximately 2 cm/yr and consequent high deposition rates of ponded, mainly well-layered, fine-grained sediments allow to reconstruct with excellent stratigraphic resolution the fault growth in the past few centuries. More than 3 m of vertical displacement has accumulated in the fault zone, leaving no indication of scarp-related erosion in the footwall deposits or of colluvial wedges in the hanging wall. This unequivocal stratigraphic evidence of "aseismites" (i.e., sedimentary features and relations generated by continuous fault creep) shows that earthquake surface faulting and aseismic creep generate completely different sedimentary responses. JF - Special Paper - Geological Society of America AU - Ferreli, Luca AU - Michetti, Alessandro Maria AU - Serva, Leonello AU - Vittori, Eutizio A2 - Ettensohn, Frank R. A2 - Rast, Nicholas A2 - Brett, Carlton E. Y1 - 2002 PY - 2002 DA - 2002 SP - 49 EP - 62 PB - Geological Society of America (GSA), Boulder, CO VL - 359 SN - 0072-1077, 0072-1077 KW - Mandra del Re KW - paleoseismicity KW - seismites KW - Europe KW - Holocene KW - Italy KW - Southern Europe KW - soft sediment deformation KW - Cenozoic KW - neotectonics KW - normal faults KW - Moscarello Fault KW - tectonics KW - active faults KW - sedimentary structures KW - faults KW - Fondo Macchia Italy KW - Quaternary KW - Mount Etna KW - Pernicana Fault KW - Sicily Italy KW - volcanic earthquakes KW - upper Holocene KW - earthquakes KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52072592?accountid=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=Special+Paper+-+Geological+Society+of+America&rft.atitle=Stratigraphic+evidence+of+coseismic+faulting+and+aseismic+fault+creep+from+exploratory+trenches+at+Mt.+Etna+Volcano+%28Sicily%2C+Italy%29&rft.au=Ferreli%2C+Luca%3BMichetti%2C+Alessandro+Maria%3BServa%2C+Leonello%3BVittori%2C+Eutizio&rft.aulast=Ferreli&rft.aufirst=Luca&rft.date=2002-01-01&rft.volume=359&rft.issue=&rft.spage=49&rft.isbn=0813723590&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&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 - 40 N1 - PubXState - CO N1 - Document feature - illus. incl. sects., geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - active faults; Cenozoic; earthquakes; Europe; faults; Fondo Macchia Italy; Holocene; Italy; Mandra del Re; Moscarello Fault; Mount Etna; neotectonics; normal faults; paleoseismicity; Pernicana Fault; Quaternary; sedimentary structures; seismites; Sicily Italy; soft sediment deformation; Southern Europe; tectonics; upper Holocene; volcanic earthquakes ER - TY - JOUR T1 - Application of an analytic element model for multi-aquifer flow in the Atlantic Coastal Plain, USA AN - 52065262; 2002-066996 JF - Developments in Water Science AU - Kraemer, Stephen R AU - Bakker, Mark A2 - Hassanizadeh, S. Majid A2 - Schotting, Ruud J. A2 - Gray, William G. A2 - Pinder, George F. Y1 - 2002 PY - 2002 DA - 2002 SP - 767 EP - 770 PB - Elsevier, Amsterdam-Oxford-New York VL - 47, Vol. 1 SN - 0167-5648, 0167-5648 KW - United States KW - water quality KW - preferential flow KW - ground water KW - Cenozoic KW - transport KW - Yorktown Formation KW - multiple aquifers KW - hydrodynamics KW - animal waste KW - Atlantic Coastal Plain KW - pollutants KW - numerical analysis KW - pollution KW - aquifers KW - case studies KW - Tertiary KW - Lizzie North Carolina KW - Neogene KW - North Carolina KW - Pliocene KW - Greene County North Carolina KW - shallow aquifers KW - Yorktown Aquifer KW - unconfined aquifers KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52065262?accountid=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=Developments+in+Water+Science&rft.atitle=Application+of+an+analytic+element+model+for+multi-aquifer+flow+in+the+Atlantic+Coastal+Plain%2C+USA&rft.au=Kraemer%2C+Stephen+R%3BBakker%2C+Mark&rft.aulast=Kraemer&rft.aufirst=Stephen&rft.date=2002-01-01&rft.volume=47%2C+Vol.+1&rft.issue=&rft.spage=767&rft.isbn=0444509755&rft.btitle=&rft.title=Developments+in+Water+Science&rft.issn=01675648&rft_id=info:doi/ L2 - http://www.elsevier.com/wps/find/bookseriesdescription.cws_home/BS_DWS/description LA - English DB - GeoRef N1 - Conference title - XIVth international conference on Computational methods in water resources (CMWR XIV) N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 4 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - animal waste; aquifers; Atlantic Coastal Plain; case studies; Cenozoic; field studies; Greene County North Carolina; ground water; hydrodynamics; Lizzie North Carolina; multiple aquifers; Neogene; North Carolina; numerical analysis; Pliocene; pollutants; pollution; preferential flow; shallow aquifers; Tertiary; transport; unconfined aquifers; United States; water quality; Yorktown Aquifer; Yorktown Formation ER - TY - JOUR T1 - Anthropogenic nitrogen sources and relationships to riverine nitrogen export in the northeastern USA AN - 52038102; 2003-004200 AB - Human activities have greatly altered the nitrogen (N) cycle, accelerating the rate of N fixation in landscapes and delivery of N to water bodies. To examine relationships between anthropogenic N inputs and riverine N export, we constructed budgets describing N inputs and losses for 16 catchments, which encompass a range of climatic variability and are major drainages to the coast of the North Atlantic Ocean along a latitudinal profile from Maine to Virginia. Using data from the early 1990's, we quantified inputs of N to each catchment from atmospheric deposition, application of nitrogenous fertilizers, biological nitrogen fixation, and import of N in agricultural products (food and feed). We compared these inputs with N losses from the system in riverine export. The importance of the relative sources varies widely by catchment and is related to land use. Net atmospheric deposition was the largest N source (>60%) to the forested basins of northern New England (e.g. Penobscot and Kennebec); net import of N in food was the largest source of N to the more populated regions of southern New England (e.g. Charles & Blackstone); and agricultural inputs were the dominant N sources in the Mid-Atlantic region (e.g. Schuylkill & Potomac). Over the combined area of the catchments, net atmospheric deposition was the largest single source input (31%), followed by net imports of N in food and feed (25%), fixation in agricultural lands (24%), fertilizer use (15%), and fixation in forests (5%). The combined effect of fertilizer use, fixation in crop lands, and animal feed imports makes agriculture the largest overall source of N. Riverine export of N is well correlated with N inputs, but it accounts for only a fraction (25%) of the total N inputs. This work provides an understanding of the sources of N in landscapes, and highlights how human activities impact N cycling in the northeast region. JF - Biogeochemistry (Dordrecht) AU - Boyer, Elizabeth W AU - Goodale, Christine L AU - Jaworski, Norbert A AU - Howarth, Robert W A2 - Boyer, Elizabeth W. A2 - Howarth, Robert W. Y1 - 2002 PY - 2002 DA - 2002 SP - 137 EP - 169 PB - Nijhoff/Junk, Dordrecht-Boston-Lancaster VL - 57-58 SN - 0168-2563, 0168-2563 KW - United States KW - fertilizers KW - stream transport KW - ammonium ion KW - rivers and streams KW - nitrogen KW - New England KW - drainage basins KW - nitrate ion KW - hydrology KW - forests KW - Virginia KW - human activity KW - statistical analysis KW - agriculture KW - Eastern U.S. KW - geochemical cycle KW - correlation coefficient KW - nitrogen cycle KW - eutrophication KW - North Atlantic KW - Maine KW - landscapes KW - land use KW - Atlantic Ocean KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52038102?accountid=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=Biogeochemistry+%28Dordrecht%29&rft.atitle=Anthropogenic+nitrogen+sources+and+relationships+to+riverine+nitrogen+export+in+the+northeastern+USA&rft.au=Boyer%2C+Elizabeth+W%3BGoodale%2C+Christine+L%3BJaworski%2C+Norbert+A%3BHowarth%2C+Robert+W&rft.aulast=Boyer&rft.aufirst=Elizabeth&rft.date=2002-01-01&rft.volume=57-58&rft.issue=&rft.spage=137&rft.isbn=&rft.btitle=&rft.title=Biogeochemistry+%28Dordrecht%29&rft.issn=01682563&rft_id=info:doi/ L2 - http://www.springerlink.com/content/100244/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique, Vandoeuvre-les-Nancy, France N1 - Date revised - 2003-01-01 N1 - Document feature - 7 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - agriculture; ammonium ion; Atlantic Ocean; correlation coefficient; drainage basins; Eastern U.S.; eutrophication; fertilizers; forests; geochemical cycle; human activity; hydrology; land use; landscapes; Maine; New England; nitrate ion; nitrogen; nitrogen cycle; North Atlantic; rivers and streams; statistical analysis; stream transport; United States; Virginia ER - TY - JOUR T1 - Regional analysis of inorganic nitrogen yield and retention in high-elevation ecosystems of the Sierra Nevada and Rocky Mountains AN - 52035984; 2003-004205 AB - Yields and retention of dissolved inorganic nitrogen (DIN: NO (super -) (sub 3) + NH (super +) (sub 4) ) and nitrate concentrations in surface runoff are summarized for 28 high elevation watersheds in the Sierra Nevada of California and Rocky Mountains of Wyoming and Colorado. Catchments ranged in elevation from 2475 to 3603 m and from 15 to 1908 ha in area. Soil cover varied from 5% to nearly 97% of total catchment area. Runoff from these snow-dominated catchments ranged from 315 to 1265 mm per year. In the Sierra Nevada, annual volume-weighted mean (AVWM) nitrate concentrations ranged from 0.5 to 13 mu M (overall average 5.4 mu M), and peak concentrations measured during snowmelt ranged from 1.0 to 38 mu M. Nitrate levels in the Rocky Mountain watersheds were about twice those in the Sierra Nevada; average AVWM NO (super -) (sub 3) was 9.4 mu M and snowmelt peaks ranged from 15 to 50mu M. Mean DIN loading to Rocky Mountain watersheds, 3.6 kg ha (super -1) yr (super -1) , was double the average measured for Sierra Nevada watersheds, 1.8 kg ha (super -1) yr (super -1) . DIN yield in the Sierra Nevada, 0.69 kg ha (super -1) yr (super -1) , was about 60% that measured in the Rocky Mountains, 1.1 kg ha (super -1) yr (super -1) . Net inorganic N retention in Sierra Nevada catchments was 1.2 kg ha (super -1) yr (super -1) and represented about 55% of annual DIN loading. DIN retention in the Rocky Mountain catchments was greater in absolute terms, 2.5 kg ha (super -1) yr (super -1) , and as a percentage of DIN loading, 72%. A correlation analysis using DIN yield, DIN retention and surface water nitrate concentrations as dependent variables and eight environmental features (catchment elevation, slope, aspect, roughness, area, runoff, soil cover and DIN loading) as independent variables was conducted. For the Sierra Nevada, elevation and soil cover had significant (p<0.1) Pearson product moment correlations with catchment DIN yield, AVWM and peak snowmelt nitrate concentrations and DIN retention rates. Log-linear regression models using soil cover as the independent variable explained 82% of the variation in catchment DIN retention, 92% of the variability in AVWM nitrate and 85% of snowmelt peak NO (super -) (sub 3) . In the Rocky Mountains, soil cover was significantly (p<0.05) correlated with DIN yield, AVWM NO (super -) (sub 3) and DIN retention expressed as a percentage of DIN loading (%DIN retention). Catchment mean slope and terrain roughness were positively correlated with steam nitrate concentrations and negatively related to %DIN retention. About 91% of the variation in DIN yield and 79% of the variability in AVWM NO (super -) (sub 3) were explained by log-linear models based on soil cover. A log-linear regression based on soil cover explained 90% of the variation of %DIN retention in the Rocky Mountains. JF - Biogeochemistry (Dordrecht) AU - Sickman, James O AU - Melack, John M AU - Stoddard, John L Y1 - 2002 PY - 2002 DA - 2002 SP - 341 EP - 374 PB - Nijhoff/Junk, Dordrecht-Boston-Lancaster VL - 57-58 SN - 0168-2563, 0168-2563 KW - United States KW - Sierra Nevada KW - ammonium ion KW - ecosystems KW - atmospheric precipitation KW - nitrogen KW - California KW - snow KW - drainage basins KW - nitrate ion KW - soils KW - North America KW - concentration KW - loading KW - surface water KW - statistical analysis KW - roughness KW - solutes KW - U. S. Rocky Mountains KW - geochemical cycle KW - Wyoming KW - nitrogen cycle KW - runoff KW - Colorado KW - Rocky Mountains KW - regression analysis KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52035984?accountid=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=Biogeochemistry+%28Dordrecht%29&rft.atitle=Regional+analysis+of+inorganic+nitrogen+yield+and+retention+in+high-elevation+ecosystems+of+the+Sierra+Nevada+and+Rocky+Mountains&rft.au=Sickman%2C+James+O%3BMelack%2C+John+M%3BStoddard%2C+John+L&rft.aulast=Sickman&rft.aufirst=James&rft.date=2002-01-01&rft.volume=57-58&rft.issue=&rft.spage=341&rft.isbn=&rft.btitle=&rft.title=Biogeochemistry+%28Dordrecht%29&rft.issn=01682563&rft_id=info:doi/ L2 - http://www.springerlink.com/content/100244/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique, Vandoeuvre-les-Nancy, France N1 - Date revised - 2003-01-01 N1 - Document feature - 8 tables N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - ammonium ion; atmospheric precipitation; California; Colorado; concentration; drainage basins; ecosystems; geochemical cycle; loading; nitrate ion; nitrogen; nitrogen cycle; North America; regression analysis; Rocky Mountains; roughness; runoff; Sierra Nevada; snow; soils; solutes; statistical analysis; surface water; U. S. Rocky Mountains; United States; Wyoming ER - TY - JOUR T1 - The consideration and representation of retention processes in the WIPP performance assessment; justification of adopted approaches and interaction with the regulator; Part II, EPA review process and approval justification AN - 52032481; 2003-011997 JF - GEOTRAP Project - Workshop Proceedings AU - Byrum, Charles AU - Peake, R Thomas Y1 - 2002 PY - 2002 DA - 2002 SP - 187 EP - 199 PB - Organisation for Economic Co-operation and Development, Nuclear Energy Agency, Paris VL - 5 KW - United States KW - contaminant plumes KW - isotopes KW - Eddy County New Mexico KW - regulations KW - government agencies KW - chemical retardation KW - New Mexico KW - reservoir rocks KW - radioactive waste KW - radioactive isotopes KW - transport KW - retention KW - Waste Isolation Pilot Plant KW - Culebra Dolomite Member KW - monitoring KW - Paleozoic KW - U. S. Environmental Protection Agency KW - pollution KW - Permian KW - models KW - metals KW - risk assessment KW - waste disposal KW - actinides KW - underground disposal KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52032481?accountid=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=GEOTRAP+Project+-+Workshop+Proceedings&rft.atitle=The+consideration+and+representation+of+retention+processes+in+the+WIPP+performance+assessment%3B+justification+of+adopted+approaches+and+interaction+with+the+regulator%3B+Part+II%2C+EPA+review+process+and+approval+justification&rft.au=Byrum%2C+Charles%3BPeake%2C+R+Thomas&rft.aulast=Byrum&rft.aufirst=Charles&rft.date=2002-01-01&rft.volume=5&rft.issue=&rft.spage=187&rft.isbn=9264196951&rft.btitle=&rft.title=GEOTRAP+Project+-+Workshop+Proceedings&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fifth GEOTRAP workshop on Radionuclide retention in geologic media N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 21 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #06191 N1 - SubjectsTermNotLitGenreText - actinides; chemical retardation; contaminant plumes; Culebra Dolomite Member; Eddy County New Mexico; government agencies; isotopes; metals; models; monitoring; New Mexico; Paleozoic; Permian; pollution; radioactive isotopes; radioactive waste; regulations; reservoir rocks; retention; risk assessment; transport; U. S. Environmental Protection Agency; underground disposal; United States; waste disposal; Waste Isolation Pilot Plant ER - TY - JOUR T1 - The consideration and representation of retention processes in the WIPP performance assessment; justification of adopted approaches and interaction with the regulator; Part I, Chemical retardation of dissolved actinides AN - 52028284; 2003-011996 JF - GEOTRAP Project - Workshop Proceedings AU - Brush, Lawrence H AU - Bryan, Charles R AU - Meigs, Lucy C AU - Papenguth, Hans W AU - Vaughn, Palmer Y1 - 2002 PY - 2002 DA - 2002 SP - 179 EP - 185 PB - Organisation for Economic Co-operation and Development, Nuclear Energy Agency, Paris VL - 5 KW - United States KW - sorption KW - contaminant plumes KW - Eddy County New Mexico KW - plutonium KW - pollution KW - chemical retardation KW - New Mexico KW - reservoir rocks KW - radioactive waste KW - metals KW - americium KW - retention KW - chemical properties KW - thorium KW - uranium KW - rare earths KW - Waste Isolation Pilot Plant KW - waste disposal KW - neodymium KW - actinides KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52028284?accountid=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=GEOTRAP+Project+-+Workshop+Proceedings&rft.atitle=The+consideration+and+representation+of+retention+processes+in+the+WIPP+performance+assessment%3B+justification+of+adopted+approaches+and+interaction+with+the+regulator%3B+Part+I%2C+Chemical+retardation+of+dissolved+actinides&rft.au=Brush%2C+Lawrence+H%3BBryan%2C+Charles+R%3BMeigs%2C+Lucy+C%3BPapenguth%2C+Hans+W%3BVaughn%2C+Palmer&rft.aulast=Brush&rft.aufirst=Lawrence&rft.date=2002-01-01&rft.volume=5&rft.issue=&rft.spage=179&rft.isbn=9264196951&rft.btitle=&rft.title=GEOTRAP+Project+-+Workshop+Proceedings&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fifth GEOTRAP workshop on Radionuclide retention in geologic media N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 17 N1 - Last updated - 2012-06-07 N1 - CODEN - #06191 N1 - SubjectsTermNotLitGenreText - actinides; americium; chemical properties; chemical retardation; contaminant plumes; Eddy County New Mexico; metals; neodymium; New Mexico; plutonium; pollution; radioactive waste; rare earths; reservoir rocks; retention; sorption; thorium; United States; uranium; waste disposal; Waste Isolation Pilot Plant ER - TY - JOUR T1 - A model for changes in sediment and water-column biogeochemistry in response to seasonal hypoxic/anoxic conditions beneath the Mississippi River plume AN - 52020804; 2003-017865 JF - Abstracts Volume - International Symposium on the Geochemistry of the Earth's Surface (GES) AU - Eldridge, Peter M AU - Morse, John W AU - Anonymous Y1 - 2002 PY - 2002 DA - 2002 SP - 205 PB - [Publisher varies], [location varies] VL - 6 KW - United States KW - plumes KW - sea water KW - Gulf of Mexico KW - marine sediments KW - sediments KW - ecology KW - Louisiana KW - geochemistry KW - productivity KW - metabolism KW - biochemistry KW - hypoxia KW - Mississippi River plume KW - Gulf Coastal Plain KW - hydrochemistry KW - nutrients KW - models KW - marine environment KW - anaerobic environment KW - seasonal variations KW - continental shelf KW - North Atlantic KW - Atlantic Ocean KW - 02B:Hydrochemistry KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52020804?accountid=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+Volume+-+International+Symposium+on+the+Geochemistry+of+the+Earth%27s+Surface+%28GES%29&rft.atitle=A+model+for+changes+in+sediment+and+water-column+biogeochemistry+in+response+to+seasonal+hypoxic%2Fanoxic+conditions+beneath+the+Mississippi+River+plume&rft.au=Eldridge%2C+Peter+M%3BMorse%2C+John+W%3BAnonymous&rft.aulast=Eldridge&rft.aufirst=Peter&rft.date=2002-01-01&rft.volume=6&rft.issue=&rft.spage=205&rft.isbn=&rft.btitle=&rft.title=Abstracts+Volume+-+International+Symposium+on+the+Geochemistry+of+the+Earth%27s+Surface+%28GES%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sixth international symposium on the Geochemistry of the Earth's surface N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #06081 N1 - SubjectsTermNotLitGenreText - anaerobic environment; Atlantic Ocean; biochemistry; continental shelf; ecology; geochemistry; Gulf Coastal Plain; Gulf of Mexico; hydrochemistry; hypoxia; Louisiana; marine environment; marine sediments; metabolism; Mississippi River plume; models; North Atlantic; nutrients; plumes; productivity; sea water; seasonal variations; sediments; United States ER - TY - JOUR T1 - Pulsed air sparging in aquifers contaminated with dense nonaqueous phase liquids AN - 52019738; 2003-016744 AB - Air sparging was evaluated for remediation of tetrachloroethylene (PCE) present as dense nonaqueous phase liquid (DNAPL) in aquifers. A two-dimensional laboratory tank with a transparent front wall allowed for visual observation of DNAPL mobilization. A DNAPL zone 50 cm high was created, with a PCE pool accumulating on an aquitard. Detailed process control and analysis yielded accurate mass balances and insight into the mass-transfer limitations during air sparging. Initial PCE recovery rates were high, corresponding to fast removal of residual DNAPL within the zone influenced directly by air channels. The vadose zone DNAPL was removed within a few days, and the recovery in the extracted soil vapors decreased to low values. Increasing the sparge rate and pulsing the air injection led to improved mass recovery, as the pulsing induced water circulation and increased the DNAPL dissolution rate. Dissolved PCE concentrations both within and outside the zone of air channels were affected by the pulsing. Inside the sparge zone, aqueous concentrations decreased rapidly, matching the declining effluent PCE flux. Outside the sparge zone, PCE concentrations increased because highly contaminated water was pushed away from the air injection point. This overall circulation of water may lead to limited spreading of the contaminant, but accelerated the time-weighted average mass removal by 40% to 600%, depending on the aggressiveness of the pulsing. For field applications, pulsing with a daily or diurnal cycling time may increase the average mass removal rate, thus reducing the treatment time and saving in the order of 40% to 80% of the energy cost used to run the blowers. However, air sparging will always fail to remove DNAPL pools located below the sparge point because the air will rise upward from the top of a screen, unless very localized geological layers force the air to migrate horizontally. Unrecognized presence of DNAPL at chlorinated solvent sites residual and pools could potentially hamper success of air sparging cleanups, since the presence of small DNAPL pools, ganglia or droplets can greatly extend the treatment time. JF - Ground Water Monitoring & Remediation AU - Heron, Gorm AU - Gierke, John S AU - Faulkner, Barton AU - Mravik, Susan AU - Wood, Lynn AU - Enfield, Carl G Y1 - 2002 PY - 2002 DA - 2002 SP - 73 EP - 82 PB - Ground Water Publishing Co., Dublin, OH VL - 22 IS - 4 SN - 1069-3629, 1069-3629 KW - chlorinated hydrocarbons KW - soil vapor extraction KW - unsaturated zone KW - tetrachloroethylene KW - dense nonaqueous phase liquids KW - air sparging KW - physical models KW - remediation KW - ground water KW - laboratory studies KW - transport KW - decontamination KW - halogenated hydrocarbons KW - mobility KW - soils KW - experimental studies KW - patterns KW - pollutants KW - pollution KW - capillary water KW - aquifers KW - nonaqueous phase liquids KW - water table KW - organic compounds KW - pore water KW - instruments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52019738?accountid=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=Pulsed+air+sparging+in+aquifers+contaminated+with+dense+nonaqueous+phase+liquids&rft.au=Heron%2C+Gorm%3BGierke%2C+John+S%3BFaulkner%2C+Barton%3BMravik%2C+Susan%3BWood%2C+Lynn%3BEnfield%2C+Carl+G&rft.aulast=Heron&rft.aufirst=Gorm&rft.date=2002-01-01&rft.volume=22&rft.issue=4&rft.spage=73&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 - 2003-01-01 N1 - Number of references - 29 N1 - PubXState - OH N1 - Document feature - illus. N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - air sparging; aquifers; capillary water; chlorinated hydrocarbons; decontamination; dense nonaqueous phase liquids; experimental studies; ground water; halogenated hydrocarbons; instruments; laboratory studies; mobility; nonaqueous phase liquids; organic compounds; patterns; physical models; pollutants; pollution; pore water; remediation; soil vapor extraction; soils; tetrachloroethylene; transport; unsaturated zone; water table ER - TY - JOUR T1 - A scaling approach to measurement and modeling of spatial and temporal variability in early diagenetic processes AN - 52019382; 2003-017869 JF - Abstracts Volume - International Symposium on the Geochemistry of the Earth's Surface (GES) AU - Morse, J W AU - DiMarco, S AU - Hebert, A AU - Sell, K S AU - Eldridge, P M AU - Anonymous Y1 - 2002 PY - 2002 DA - 2002 SP - 216 PB - [Publisher varies], [location varies] VL - 6 KW - scale factor KW - electrodes KW - concentration KW - experimental studies KW - early diagenesis KW - chemical analysis KW - oxygen KW - voltammetry KW - hydrogen sulfide KW - vegetation KW - manganese KW - iron KW - measurement KW - spatial variations KW - metals KW - diagenesis KW - sediments KW - theoretical models KW - temporal distribution KW - electrolytic analysis KW - geochemistry KW - instruments KW - 06A:Sedimentary petrology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52019382?accountid=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+Volume+-+International+Symposium+on+the+Geochemistry+of+the+Earth%27s+Surface+%28GES%29&rft.atitle=A+scaling+approach+to+measurement+and+modeling+of+spatial+and+temporal+variability+in+early+diagenetic+processes&rft.au=Morse%2C+J+W%3BDiMarco%2C+S%3BHebert%2C+A%3BSell%2C+K+S%3BEldridge%2C+P+M%3BAnonymous&rft.aulast=Morse&rft.aufirst=J&rft.date=2002-01-01&rft.volume=6&rft.issue=&rft.spage=216&rft.isbn=&rft.btitle=&rft.title=Abstracts+Volume+-+International+Symposium+on+the+Geochemistry+of+the+Earth%27s+Surface+%28GES%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sixth international symposium on the Geochemistry of the Earth's surface N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #06081 N1 - SubjectsTermNotLitGenreText - chemical analysis; concentration; diagenesis; early diagenesis; electrodes; electrolytic analysis; experimental studies; geochemistry; hydrogen sulfide; instruments; iron; manganese; measurement; metals; oxygen; scale factor; sediments; spatial variations; temporal distribution; theoretical models; vegetation; voltammetry ER - TY - JOUR T1 - McKin Company Superfund Site, Gray, Maine AN - 52018517; 2003-018455 JF - Water-Resources Investigations - U. S. Geological Survey AU - Lyford, Forest P AU - Connelly, Terrence R AU - Flight, Laura E AU - Church, Peter E AU - Vroblesky, Don A AU - Willey, Richard E Y1 - 2002 PY - 2002 DA - 2002 SP - 25 EP - 28 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - chlorinated hydrocarbons KW - pollutants KW - Gray Maine KW - surface water KW - pollution KW - McKin Company Superfund Site KW - environmental analysis KW - measurement KW - ground water KW - volatiles KW - organic compounds KW - passive-vapor-diffusion samplers KW - volatile organic compounds KW - halogenated hydrocarbons KW - trichloroethylene KW - Maine KW - discharge KW - USGS KW - instruments KW - Superfund sites KW - Cumberland County Maine KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52018517?accountid=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+Investigations+-+U.+S.+Geological+Survey&rft.atitle=McKin+Company+Superfund+Site%2C+Gray%2C+Maine&rft.au=Lyford%2C+Forest+P%3BConnelly%2C+Terrence+R%3BFlight%2C+Laura+E%3BChurch%2C+Peter+E%3BVroblesky%2C+Don+A%3BWilley%2C+Richard+E&rft.aulast=Lyford&rft.aufirst=Forest&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Water-Resources+Investigations+-+U.+S.+Geological+Survey&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - chlorinated hydrocarbons; Cumberland County Maine; discharge; environmental analysis; Gray Maine; ground water; halogenated hydrocarbons; instruments; Maine; McKin Company Superfund Site; measurement; organic compounds; passive-vapor-diffusion samplers; pollutants; pollution; Superfund sites; surface water; trichloroethylene; United States; USGS; volatile organic compounds; volatiles ER - TY - JOUR T1 - Nyanza Chemical Waste Dump Superfund Site, Ashland, Massachusetts AN - 52018176; 2003-018461 JF - Water-Resources Investigations - U. S. Geological Survey AU - Lyford, Forest P AU - Willey, Richard E AU - Hayes, Sharon M AU - Church, Peter E AU - Vroblesky, Don A Y1 - 2002 PY - 2002 DA - 2002 SP - 48 EP - 52 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - chlorinated hydrocarbons KW - Nyanza Chemical Waste Dump Superfund Site KW - pollutants KW - pollution KW - Middlesex County Massachusetts KW - tetrachloroethylene KW - environmental analysis KW - measurement KW - ground water KW - volatiles KW - organic compounds KW - passive-vapor-diffusion samplers KW - Massachusetts KW - volatile organic compounds KW - halogenated hydrocarbons KW - trichloroethylene KW - Ashland Massachusetts KW - USGS KW - instruments KW - Superfund sites KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52018176?accountid=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+Investigations+-+U.+S.+Geological+Survey&rft.atitle=Nyanza+Chemical+Waste+Dump+Superfund+Site%2C+Ashland%2C+Massachusetts&rft.au=Lyford%2C+Forest+P%3BWilley%2C+Richard+E%3BHayes%2C+Sharon+M%3BChurch%2C+Peter+E%3BVroblesky%2C+Don+A&rft.aulast=Lyford&rft.aufirst=Forest&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=48&rft.isbn=&rft.btitle=&rft.title=Water-Resources+Investigations+-+U.+S.+Geological+Survey&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - Ashland Massachusetts; chlorinated hydrocarbons; environmental analysis; ground water; halogenated hydrocarbons; instruments; Massachusetts; measurement; Middlesex County Massachusetts; Nyanza Chemical Waste Dump Superfund Site; organic compounds; passive-vapor-diffusion samplers; pollutants; pollution; Superfund sites; tetrachloroethylene; trichloroethylene; United States; USGS; volatile organic compounds; volatiles ER - TY - JOUR T1 - Guidance on the use of passive-vapor diffusion samplers AN - 52018136; 2003-018453 JF - Water-Resources Investigations - U. S. Geological Survey AU - Vroblesky, Don A AU - Church, Peter E AU - Lyford, Forest P AU - Willey, Richard E Y1 - 2002 PY - 2002 DA - 2002 SP - 5 EP - 18 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - pollutants KW - pollution KW - ground water KW - volatiles KW - organic compounds KW - sampling KW - passive-vapor-diffusion samplers KW - volatile organic compounds KW - quality control KW - New England KW - USGS KW - accuracy KW - instruments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52018136?accountid=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+Investigations+-+U.+S.+Geological+Survey&rft.atitle=Guidance+on+the+use+of+passive-vapor+diffusion+samplers&rft.au=Vroblesky%2C+Don+A%3BChurch%2C+Peter+E%3BLyford%2C+Forest+P%3BWilley%2C+Richard+E&rft.aulast=Vroblesky&rft.aufirst=Don&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=Water-Resources+Investigations+-+U.+S.+Geological+Survey&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - accuracy; ground water; instruments; New England; organic compounds; passive-vapor-diffusion samplers; pollutants; pollution; quality control; sampling; United States; USGS; volatile organic compounds; volatiles ER - TY - JOUR T1 - Nutmeg Valley Road Superfund Site, Wolcott and Waterbury, Connecticut AN - 52018115; 2003-018456 JF - Water-Resources Investigations - U. S. Geological Survey AU - Mullaney, John R AU - Church, Peter E AU - Pina-Springer, Carolyn J AU - Vroblesky, Don A AU - Lyford, Forest P AU - Willey, Richard E Y1 - 2002 PY - 2002 DA - 2002 SP - 28 EP - 33 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - chlorinated hydrocarbons KW - Nutmeg Valley Road Superfund Site KW - pollutants KW - pollution KW - tetrachloroethylene KW - environmental analysis KW - Wolcott Connecticut KW - Connecticut KW - measurement KW - ground water KW - volatiles KW - organic compounds KW - Waterbury Connecticut KW - passive-vapor-diffusion samplers KW - New Haven County Connecticut KW - volatile organic compounds KW - halogenated hydrocarbons KW - trichloroethylene KW - USGS KW - instruments KW - Superfund sites KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52018115?accountid=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+Investigations+-+U.+S.+Geological+Survey&rft.atitle=Nutmeg+Valley+Road+Superfund+Site%2C+Wolcott+and+Waterbury%2C+Connecticut&rft.au=Mullaney%2C+John+R%3BChurch%2C+Peter+E%3BPina-Springer%2C+Carolyn+J%3BVroblesky%2C+Don+A%3BLyford%2C+Forest+P%3BWilley%2C+Richard+E&rft.aulast=Mullaney&rft.aufirst=John&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=28&rft.isbn=&rft.btitle=&rft.title=Water-Resources+Investigations+-+U.+S.+Geological+Survey&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - chlorinated hydrocarbons; Connecticut; environmental analysis; ground water; halogenated hydrocarbons; instruments; measurement; New Haven County Connecticut; Nutmeg Valley Road Superfund Site; organic compounds; passive-vapor-diffusion samplers; pollutants; pollution; Superfund sites; tetrachloroethylene; trichloroethylene; United States; USGS; volatile organic compounds; volatiles; Waterbury Connecticut; Wolcott Connecticut ER - TY - JOUR T1 - Guidance on the use of passive-vapor-diffusion samplers to detect volatile organic compounds in ground-water-discharge areas, and example applications in New England AN - 52018092; 2003-018452 JF - Water-Resources Investigations - U. S. Geological Survey AU - Church, Peter E AU - Vroblesky, Don A AU - Lyford, Forest P AU - Willey, Richard E Y1 - 2002 PY - 2002 DA - 2002 SP - 79 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - pollutants KW - pollution KW - ground water KW - volatiles KW - organic compounds KW - sampling KW - passive-vapor-diffusion samplers KW - volatile organic compounds KW - New England KW - USGS KW - instruments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52018092?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=Church%2C+Peter+E%3BVroblesky%2C+Don+A%3BLyford%2C+Forest+P%3BWilley%2C+Richard+E&rft.aulast=Church&rft.aufirst=Peter&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Guidance+on+the+use+of+passive-vapor-diffusion+samplers+to+detect+volatile+organic+compounds+in+ground-water-discharge+areas%2C+and+example+applications+in+New+England&rft.title=Guidance+on+the+use+of+passive-vapor-diffusion+samplers+to+detect+volatile+organic+compounds+in+ground-water-discharge+areas%2C+and+example+applications+in+New+England&rft.issn=0092332X&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 - 70 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - SuppNotes - Individual sections are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - ground water; instruments; New England; organic compounds; passive-vapor-diffusion samplers; pollutants; pollution; sampling; United States; USGS; volatile organic compounds; volatiles ER - TY - JOUR T1 - Appendix 1; Laboratory and field testing of passive-vapor-diffusion sampler equilibration times, temperature effects, and sample stability AN - 52017016; 2003-018463 JF - Water-Resources Investigations - U. S. Geological Survey AU - Vroblesky, Don A AU - Church, Peter E AU - Lyford, Forest P AU - Willey, Richard E Y1 - 2002 PY - 2002 DA - 2002 SP - 63 EP - 72 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - concentration KW - experimental studies KW - pollutants KW - pollution KW - calibration KW - hydrochemistry KW - temperature KW - measurement KW - ground water KW - laboratory studies KW - volatiles KW - organic compounds KW - passive-vapor-diffusion samplers KW - volatile organic compounds KW - USGS KW - geochemistry KW - accuracy KW - instruments KW - field studies KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52017016?accountid=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+Investigations+-+U.+S.+Geological+Survey&rft.atitle=Appendix+1%3B+Laboratory+and+field+testing+of+passive-vapor-diffusion+sampler+equilibration+times%2C+temperature+effects%2C+and+sample+stability&rft.au=Vroblesky%2C+Don+A%3BChurch%2C+Peter+E%3BLyford%2C+Forest+P%3BWilley%2C+Richard+E&rft.aulast=Vroblesky&rft.aufirst=Don&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=63&rft.isbn=&rft.btitle=&rft.title=Water-Resources+Investigations+-+U.+S.+Geological+Survey&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - accuracy; calibration; concentration; experimental studies; field studies; geochemistry; ground water; hydrochemistry; instruments; laboratory studies; measurement; organic compounds; passive-vapor-diffusion samplers; pollutants; pollution; temperature; USGS; volatile organic compounds; volatiles ER - TY - JOUR T1 - Baird & McGuire Superfund Site, Holbrook, Massachusetts AN - 52016982; 2003-018457 JF - Water-Resources Investigations - U. S. Geological Survey AU - Savoie, Jennifer G AU - Taylor, Melissa G AU - Church, Peter E AU - Vroblesky, Don A AU - Lyford, Forest P AU - Willey, Richard E Y1 - 2002 PY - 2002 DA - 2002 SP - 34 EP - 36 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - chlorinated hydrocarbons KW - contaminant plumes KW - toluene KW - tetrachloroethylene KW - environmental analysis KW - ground water KW - Massachusetts KW - halogenated hydrocarbons KW - USGS KW - Norfolk County Massachusetts KW - pollutants KW - pollution KW - Baird and McGuire Superfund Site KW - Holbrook Massachusetts KW - benzene KW - measurement KW - volatiles KW - organic compounds KW - passive-vapor-diffusion samplers KW - volatile organic compounds KW - hydrocarbons KW - xylene KW - trichloroethylene KW - instruments KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52016982?accountid=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+Investigations+-+U.+S.+Geological+Survey&rft.atitle=Baird+%26amp%3B+McGuire+Superfund+Site%2C+Holbrook%2C+Massachusetts&rft.au=Savoie%2C+Jennifer+G%3BTaylor%2C+Melissa+G%3BChurch%2C+Peter+E%3BVroblesky%2C+Don+A%3BLyford%2C+Forest+P%3BWilley%2C+Richard+E&rft.aulast=Savoie&rft.aufirst=Jennifer&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=34&rft.isbn=&rft.btitle=&rft.title=Water-Resources+Investigations+-+U.+S.+Geological+Survey&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - aromatic hydrocarbons; Baird and McGuire Superfund Site; benzene; chlorinated hydrocarbons; contaminant plumes; environmental analysis; ground water; halogenated hydrocarbons; Holbrook Massachusetts; hydrocarbons; instruments; Massachusetts; measurement; Norfolk County Massachusetts; organic compounds; passive-vapor-diffusion samplers; pollutants; pollution; tetrachloroethylene; toluene; trichloroethylene; United States; USGS; volatile organic compounds; volatiles; xylene ER - TY - JOUR T1 - Delineation of the Troy Bedrock Valley and particle-tracking analysis of ground-water flow underlying Belvidere, Illinois AN - 52016861; 2003-018450 JF - Water-Resources Investigations - U. S. Geological Survey AU - Mills, Patrick C AU - Halford, Keith J AU - Cobb, Richard P Y1 - 2002 PY - 2002 DA - 2002 SP - 46 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - Type: site location map KW - United States KW - water quality KW - Saint Peter Aquifer KW - isotopes KW - tritium KW - drift KW - preferential flow KW - ground water KW - Troy Bedrock Valley KW - ethers KW - radioactive isotopes KW - methyl tert-butyl ether KW - transport KW - sediments KW - Belvidere Illinois KW - confining beds KW - discharge KW - USGS KW - Kishwaukee River basin KW - geochemistry KW - concentration KW - Illinois KW - clastic sediments KW - pollutants KW - pollution KW - Boone County Illinois KW - Glenwood Formation KW - hydrochemistry KW - aquifers KW - volatiles KW - organic compounds KW - alluvium aquifers KW - metals KW - hydrogen KW - volatile organic compounds KW - water wells KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52016861?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=Mills%2C+Patrick+C%3BHalford%2C+Keith+J%3BCobb%2C+Richard+P&rft.aulast=Mills&rft.aufirst=Patrick&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Delineation+of+the+Troy+Bedrock+Valley+and+particle-tracking+analysis+of+ground-water+flow+underlying+Belvidere%2C+Illinois&rft.title=Delineation+of+the+Troy+Bedrock+Valley+and+particle-tracking+analysis+of+ground-water+flow+underlying+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 - 2003-01-01 N1 - Number of references - 27 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - illus. incl. sects., strat. cols., 4 tables N1 - SuppNotes - Includes appendices; Prepared in cooperation with the Illinois Environmental Protection Agency; U.S. Environmental Protection Agency N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - alluvium aquifers; aquifers; Belvidere Illinois; Boone County Illinois; clastic sediments; concentration; confining beds; discharge; drift; ethers; geochemistry; Glenwood Formation; ground water; hydrochemistry; hydrogen; Illinois; isotopes; Kishwaukee River basin; metals; methyl tert-butyl ether; organic compounds; pollutants; pollution; preferential flow; radioactive isotopes; Saint Peter Aquifer; sediments; transport; tritium; Troy Bedrock Valley; United States; USGS; volatile organic compounds; volatiles; water quality; water wells ER - TY - JOUR T1 - Allen Harboro Landfill, Davisville Naval Construction Battalion Center Superfund Site, North Kingstown, Rhode Island AN - 52016448; 2003-018458 JF - Water-Resources Investigations - U. S. Geological Survey AU - Lyford, Forest P AU - Brandon, William C AU - Williams, Christine A P AU - Church, Peter E AU - Vroblesky, Don A AU - Willey, Richard E Y1 - 2002 PY - 2002 DA - 2002 SP - 37 EP - 40 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - chlorinated hydrocarbons KW - Rhode Island KW - pollutants KW - landfills KW - pollution KW - Davisville Naval Construction Battalion KW - environmental analysis KW - measurement KW - ground water KW - North Kingstown Rhode Island KW - Allen Harboro Landfill KW - volatiles KW - organic compounds KW - Kent County Rhode Island KW - passive-vapor-diffusion samplers KW - volatile organic compounds KW - halogenated hydrocarbons KW - trichloroethylene KW - waste disposal KW - USGS KW - instruments KW - Superfund sites KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52016448?accountid=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+Investigations+-+U.+S.+Geological+Survey&rft.atitle=Allen+Harboro+Landfill%2C+Davisville+Naval+Construction+Battalion+Center+Superfund+Site%2C+North+Kingstown%2C+Rhode+Island&rft.au=Lyford%2C+Forest+P%3BBrandon%2C+William+C%3BWilliams%2C+Christine+A+P%3BChurch%2C+Peter+E%3BVroblesky%2C+Don+A%3BWilley%2C+Richard+E&rft.aulast=Lyford&rft.aufirst=Forest&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Water-Resources+Investigations+-+U.+S.+Geological+Survey&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - Allen Harboro Landfill; chlorinated hydrocarbons; Davisville Naval Construction Battalion; environmental analysis; ground water; halogenated hydrocarbons; instruments; Kent County Rhode Island; landfills; measurement; North Kingstown Rhode Island; organic compounds; passive-vapor-diffusion samplers; pollutants; pollution; Rhode Island; Superfund sites; trichloroethylene; United States; USGS; volatile organic compounds; volatiles; waste disposal ER - TY - JOUR T1 - Eastern Surplus Company Superfund Site, Meddybemps, Maine AN - 52016420; 2003-018454 JF - Water-Resources Investigations - U. S. Geological Survey AU - Lyford, Forest P AU - Hathaway, Edward M AU - Church, Peter E AU - Vroblesky, Don A AU - Willey, Richard E Y1 - 2002 PY - 2002 DA - 2002 SP - 20 EP - 24 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - chlorinated hydrocarbons KW - monitoring KW - contaminant plumes KW - Washington County Maine KW - toluene KW - pollution KW - tetrachloroethylene KW - ground water KW - volatiles KW - organic compounds KW - Eastern Surplus Company Superfund Site KW - passive-vapor-diffusion samplers KW - Meddybemps Maine KW - volatile organic compounds KW - hydrocarbons KW - halogenated hydrocarbons KW - trichloroethylene KW - Maine KW - USGS KW - instruments KW - aromatic hydrocarbons KW - Superfund sites KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52016420?accountid=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+Investigations+-+U.+S.+Geological+Survey&rft.atitle=Eastern+Surplus+Company+Superfund+Site%2C+Meddybemps%2C+Maine&rft.au=Lyford%2C+Forest+P%3BHathaway%2C+Edward+M%3BChurch%2C+Peter+E%3BVroblesky%2C+Don+A%3BWilley%2C+Richard+E&rft.aulast=Lyford&rft.aufirst=Forest&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=20&rft.isbn=&rft.btitle=&rft.title=Water-Resources+Investigations+-+U.+S.+Geological+Survey&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - aromatic hydrocarbons; chlorinated hydrocarbons; contaminant plumes; Eastern Surplus Company Superfund Site; ground water; halogenated hydrocarbons; hydrocarbons; instruments; Maine; Meddybemps Maine; monitoring; organic compounds; passive-vapor-diffusion samplers; pollution; Superfund sites; tetrachloroethylene; toluene; trichloroethylene; United States; USGS; volatile organic compounds; volatiles; Washington County Maine ER - TY - JOUR T1 - Otis Air National Guard/Camp Edwards Superfund Site, Johns Pond, Falmouth, Massachusetts AN - 52016340; 2003-018460 JF - Water-Resources Investigations - U. S. Geological Survey AU - Savoie, Jennifer G AU - LeBlanc, Denis R AU - Church, Peter E AU - Vroblesky, Don A AU - Lyford, Forest P AU - Willey, Richard E Y1 - 2002 PY - 2002 DA - 2002 SP - 43 EP - 48 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - Falmouth Massachusetts KW - contaminant plumes KW - pollutants KW - pollution KW - Otis Air National Guard Superfund Site KW - environmental analysis KW - measurement KW - ground water KW - aquifers KW - volatiles KW - organic compounds KW - Camp Edwards Superfund Site KW - Barnstable County Massachusetts KW - passive-vapor-diffusion samplers KW - Massachusetts KW - volatile organic compounds KW - Massachusetts Military Reservation KW - military facilities KW - USGS KW - instruments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52016340?accountid=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+Investigations+-+U.+S.+Geological+Survey&rft.atitle=Otis+Air+National+Guard%2FCamp+Edwards+Superfund+Site%2C+Johns+Pond%2C+Falmouth%2C+Massachusetts&rft.au=Savoie%2C+Jennifer+G%3BLeBlanc%2C+Denis+R%3BChurch%2C+Peter+E%3BVroblesky%2C+Don+A%3BLyford%2C+Forest+P%3BWilley%2C+Richard+E&rft.aulast=Savoie&rft.aufirst=Jennifer&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=43&rft.isbn=&rft.btitle=&rft.title=Water-Resources+Investigations+-+U.+S.+Geological+Survey&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - aquifers; Barnstable County Massachusetts; Camp Edwards Superfund Site; contaminant plumes; environmental analysis; Falmouth Massachusetts; ground water; instruments; Massachusetts; Massachusetts Military Reservation; measurement; military facilities; organic compounds; Otis Air National Guard Superfund Site; passive-vapor-diffusion samplers; pollutants; pollution; United States; USGS; volatile organic compounds; volatiles ER - TY - JOUR T1 - Centredale Manor Restoration Project Superfund Site, North Providence, Rhode Island AN - 52015981; 2003-018462 JF - Water-Resources Investigations - U. S. Geological Survey AU - Church, Peter E AU - Lyford, Forest P AU - Krasko, Anna F AU - Vroblesky, Don A AU - Willey, Richard E Y1 - 2002 PY - 2002 DA - 2002 SP - 52 EP - 58 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - soils KW - chlorinated hydrocarbons KW - Centredale Manor Restoration Project Superfund Site KW - Rhode Island KW - pollutants KW - Providence Rhode Island KW - pollution KW - tetrachloroethylene KW - environmental analysis KW - measurement KW - ground water KW - volatiles KW - Providence County Rhode Island KW - organic compounds KW - passive-vapor-diffusion samplers KW - volatile organic compounds KW - halogenated hydrocarbons KW - trichloroethylene KW - USGS KW - instruments KW - Superfund sites KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52015981?accountid=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+Investigations+-+U.+S.+Geological+Survey&rft.atitle=Centredale+Manor+Restoration+Project+Superfund+Site%2C+North+Providence%2C+Rhode+Island&rft.au=Church%2C+Peter+E%3BLyford%2C+Forest+P%3BKrasko%2C+Anna+F%3BVroblesky%2C+Don+A%3BWilley%2C+Richard+E&rft.aulast=Church&rft.aufirst=Peter&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=52&rft.isbn=&rft.btitle=&rft.title=Water-Resources+Investigations+-+U.+S.+Geological+Survey&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - 2 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - Centredale Manor Restoration Project Superfund Site; chlorinated hydrocarbons; environmental analysis; ground water; halogenated hydrocarbons; instruments; measurement; organic compounds; passive-vapor-diffusion samplers; pollutants; pollution; Providence County Rhode Island; Providence Rhode Island; Rhode Island; soils; Superfund sites; tetrachloroethylene; trichloroethylene; United States; USGS; volatile organic compounds; volatiles ER - TY - JOUR T1 - Calf Pasture Point, Davisville Naval Construction Battalion Center Superfund Site, North Kingstown, Rhode Island AN - 52015954; 2003-018459 JF - Water-Resources Investigations - U. S. Geological Survey AU - Lyford, Forest P AU - Williams, Christine A P AU - Brandon, William C AU - Church, Peter E AU - Vroblesky, Don A AU - Willey, Richard E Y1 - 2002 PY - 2002 DA - 2002 SP - 40 EP - 43 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - United States KW - chlorinated hydrocarbons KW - Calf Pasture Point KW - Rhode Island KW - pollutants KW - pollution KW - Davisville Naval Construction Battalion KW - tetrachloroethylene KW - environmental analysis KW - measurement KW - ground water KW - North Kingstown Rhode Island KW - volatiles KW - organic compounds KW - Kent County Rhode Island KW - passive-vapor-diffusion samplers KW - volatile organic compounds KW - halogenated hydrocarbons KW - trichloroethylene KW - USGS KW - instruments KW - Superfund sites KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52015954?accountid=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+Investigations+-+U.+S.+Geological+Survey&rft.atitle=Calf+Pasture+Point%2C+Davisville+Naval+Construction+Battalion+Center+Superfund+Site%2C+North+Kingstown%2C+Rhode+Island&rft.au=Lyford%2C+Forest+P%3BWilliams%2C+Christine+A+P%3BBrandon%2C+William+C%3BChurch%2C+Peter+E%3BVroblesky%2C+Don+A%3BWilley%2C+Richard+E&rft.aulast=Lyford&rft.aufirst=Forest&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=40&rft.isbn=&rft.btitle=&rft.title=Water-Resources+Investigations+-+U.+S.+Geological+Survey&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - Calf Pasture Point; chlorinated hydrocarbons; Davisville Naval Construction Battalion; environmental analysis; ground water; halogenated hydrocarbons; instruments; Kent County Rhode Island; measurement; North Kingstown Rhode Island; organic compounds; passive-vapor-diffusion samplers; pollutants; pollution; Rhode Island; Superfund sites; tetrachloroethylene; trichloroethylene; United States; USGS; volatile organic compounds; volatiles ER - TY - JOUR T1 - Appendix 2; Field screening of volatile organic compounds collected with passive-vapor-diffusion samplers with a gas chromatograph AN - 52015117; 2003-018464 JF - Water-Resources Investigations - U. S. Geological Survey AU - Clifford, Scott AU - Church, Peter E AU - Vroblesky, Don A AU - Lyford, Forest P AU - Willey, Richard E Y1 - 2002 PY - 2002 DA - 2002 SP - 73 EP - 79 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - pollutants KW - pollution KW - hydrochemistry KW - measurement KW - ground water KW - gas chromatography KW - volatiles KW - organic compounds KW - sampling KW - passive-vapor-diffusion samplers KW - volatile organic compounds KW - USGS KW - geochemistry KW - accuracy KW - instruments KW - field studies KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52015117?accountid=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+Investigations+-+U.+S.+Geological+Survey&rft.atitle=Appendix+2%3B+Field+screening+of+volatile+organic+compounds+collected+with+passive-vapor-diffusion+samplers+with+a+gas+chromatograph&rft.au=Clifford%2C+Scott%3BChurch%2C+Peter+E%3BVroblesky%2C+Don+A%3BLyford%2C+Forest+P%3BWilley%2C+Richard+E&rft.aulast=Clifford&rft.aufirst=Scott&rft.date=2002-01-01&rft.volume=&rft.issue=&rft.spage=73&rft.isbn=&rft.btitle=&rft.title=Water-Resources+Investigations+-+U.+S.+Geological+Survey&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - accuracy; field studies; gas chromatography; geochemistry; ground water; hydrochemistry; instruments; measurement; organic compounds; passive-vapor-diffusion samplers; pollutants; pollution; sampling; USGS; volatile organic compounds; volatiles ER - TY - JOUR T1 - Quantitative orientation and micro-porosity analysis of recent marine sediment microfabric AN - 51989612; 2003-038392 JF - Quaternary International AU - Tovey, N Keith AU - Dadey, Kathleen A A2 - Yim, Wyss W. S. A2 - Rogers, J. A2 - Tovey, N. Keith Y1 - 2002 PY - 2002 DA - 2002 SP - 89 EP - 100 PB - Pergamon, Oxford VL - 92 SN - 1040-6182, 1040-6182 KW - orientation KW - Mariana Trough KW - Quaternary KW - statistical analysis KW - Holocene KW - porosity KW - West Pacific KW - IGCP KW - hydrothermal conditions KW - upper Pleistocene KW - Cenozoic KW - marine sediments KW - North Pacific KW - Pacific Ocean KW - Mariana Mounds KW - sediments KW - Pleistocene KW - Northwest Pacific KW - fabric KW - SEM data KW - image analysis KW - anisotropy KW - 24:Quaternary geology KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51989612?accountid=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=Quaternary+International&rft.atitle=Quantitative+orientation+and+micro-porosity+analysis+of+recent+marine+sediment+microfabric&rft.au=Tovey%2C+N+Keith%3BDadey%2C+Kathleen+A&rft.aulast=Tovey&rft.aufirst=N&rft.date=2002-01-01&rft.volume=92&rft.issue=&rft.spage=89&rft.isbn=&rft.btitle=&rft.title=Quaternary+International&rft.issn=10406182&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/10406182 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 19 N1 - Document feature - illus. incl. 3 tables, sketch map N1 - SuppNotes - IGCP Project No. 396 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anisotropy; Cenozoic; fabric; Holocene; hydrothermal conditions; IGCP; image analysis; Mariana Mounds; Mariana Trough; marine sediments; North Pacific; Northwest Pacific; orientation; Pacific Ocean; Pleistocene; porosity; Quaternary; sediments; SEM data; statistical analysis; upper Pleistocene; West Pacific ER - TY - JOUR T1 - Deterministic and stochastic water-balance modeling of the Gilt Edge Mine Superfund Site, South Dakota AN - 51913706; 2003-086002 AB - A water-balance model with deterministic and stochastic components was developed and used for the Gilt Edge Mine Superfund Site in South Dakota. The model was developed to evaluate the risks of contaminated runoff discharging to surface waters based on assumed water treatment plant (WTP) rates for different remedial alternatives. The objectives of the modeling were to use a stochastic approach for the analysis of precipitation based on historic records and to make a probabilistic estimation of annual and monthly runoff from disturbed/mining activity areas that now require, or will need, treatment at the WTP, water storage and changes in a major pit, and risk of contaminated water bypass of the WTP to a downstream drainage. Subareas/source areas generating contaminated runoff requiring treatment were delineated. A simple water-balance model was used based on precipitation inputs and evapotranspiration and groundwater losses. Annual and monthly precipitation records for Lead, South Dakota, were used to estimate precipitation at the mine site. A lognormal distribution was estimated for monthly precipitation. The stochastic software package/Excel add-in " @Risk" was used to generate random monthly precipitation values using a Monte Carlo method based on the distributions. The average annual and monthly distribution of pan and lake evaporation and of groundwater losses were also estimated for the site. Stochastic outputs from the model for the end of each month and year included contaminated runoff requiring treatment, water storage in mine pits and the risk of WTP bypass given different assumed WTP rates. The probability of the time required to dewater the pits was also modeled. JF - Transactions of Society for Mining, Metallurgy, and Exploration AU - Caruso, B S AU - Wangerud, K Y1 - 2002 PY - 2002 DA - 2002 SP - 104 EP - 112 PB - Society for Mining, Metallurgy, and Exploration, Littleton, CO VL - 312 SN - 1075-8623, 1075-8623 KW - United States KW - hydrology KW - Monte Carlo analysis KW - statistical analysis KW - pollution KW - Black Hills KW - water balance KW - evapotranspiration KW - environmental analysis KW - stochastic processes KW - Gilt Edge Mine KW - Superfund sites KW - South Dakota KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51913706?accountid=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+Society+for+Mining%2C+Metallurgy%2C+and+Exploration&rft.atitle=Deterministic+and+stochastic+water-balance+modeling+of+the+Gilt+Edge+Mine+Superfund+Site%2C+South+Dakota&rft.au=Caruso%2C+B+S%3BWangerud%2C+K&rft.aulast=Caruso&rft.aufirst=B&rft.date=2002-01-01&rft.volume=312&rft.issue=&rft.spage=104&rft.isbn=&rft.btitle=&rft.title=Transactions+of+Society+for+Mining%2C+Metallurgy%2C+and+Exploration&rft.issn=10758623&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 - 20 N1 - PubXState - CO N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Preprint 02-089, presented at the SME annual meeting, Feb. 25-27, 2002, Phoenix, Arizona N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Black Hills; environmental analysis; evapotranspiration; Gilt Edge Mine; hydrology; Monte Carlo analysis; pollution; South Dakota; statistical analysis; stochastic processes; Superfund sites; United States; water balance ER - TY - JOUR T1 - Evaluation of mixing energy in the swirling and baffled flasks AN - 51859973; 2004-029863 JF - Water Studies AU - Kaku, V J AU - Boufadel, M C AU - Venosa, A D A2 - Brebbia, C. A. Y1 - 2002 PY - 2002 DA - 2002 SP - 211 EP - 218 PB - WIT Press, Southampton VL - 11 SN - 1462-6071, 1462-6071 KW - laboratory studies KW - experimental studies KW - mixing KW - oil spills KW - pollution KW - algorithms KW - dispersion patterns KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51859973?accountid=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+Studies&rft.atitle=Evaluation+of+mixing+energy+in+the+swirling+and+baffled+flasks&rft.au=Kaku%2C+V+J%3BBoufadel%2C+M+C%3BVenosa%2C+A+D&rft.aulast=Kaku&rft.aufirst=V&rft.date=2002-01-01&rft.volume=11&rft.issue=&rft.spage=211&rft.isbn=1853129224&rft.btitle=&rft.title=Water+Studies&rft.issn=14626071&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Oil and hydrocarbon spills N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 4 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algorithms; dispersion patterns; experimental studies; laboratory studies; mixing; oil spills; pollution ER - TY - JOUR T1 - Reactivity of chemical reductants as a function of redox zonation AN - 51854107; 2004-036218 AB - To determine the distribution and reactivity of chemical reductants as a function of redox zonation, the reaction kinetics for a series of probe molecules have been measured in sediments for which redox conditions have been well characterized. Redox characterization has included quantifying the major redox-active species in sediment pore waters (NO (sub 3) (super -) , Mn (super 2+) , Fe (super 2+) , SO (sub 4) (super 2-) , S (super 2-) , CH (sub 4) , and H (sub 2) ) and the use of acid extraction to determine the major pools of Fe(II), Fe(III), FeS and FeS (sub 2) associated with the solid phase of the sediments. Reactivity patterns determined for halogenated methanes in iron-reducing and sulphate-reducing sediments and Fe(II)-goethite and FeS model systems suggest that Fe(II) sorbed to iron oxides is the dominant chemical reductant in both the iron-reducing and sulphate-reducing sediments. Reaction kinetics of a nitroaromatic probe chemical studied in sediments as a function of redox zonation provides further evidence for the important role of Fe(II) as a reductant in sediments under iron-reducing, sulphate-reducing and methanogenic conditions. JF - IAHS-AISH Publication AU - Weber, E J AU - Kenneke, J F AU - Hoferkamp, L A A2 - Thornton, Steven F. A2 - Oswald, Sascha E. Y1 - 2002 PY - 2002 DA - 2002 SP - 113 EP - 118 PB - International Association of Hydrological Sciences VL - 275 SN - 0144-7815, 0144-7815 KW - sulfate ion KW - methane KW - aliphatic hydrocarbons KW - pollution KW - alkanes KW - ions KW - ground water KW - aquifers KW - organic compounds KW - chemical reactions KW - sediments KW - hydrocarbons KW - anaerobic environment KW - reduction KW - transformations KW - nitrate ion KW - kinetics KW - geochemistry KW - pore water KW - Eh KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51854107?accountid=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=Reactivity+of+chemical+reductants+as+a+function+of+redox+zonation&rft.au=Weber%2C+E+J%3BKenneke%2C+J+F%3BHoferkamp%2C+L+A&rft.aulast=Weber&rft.aufirst=E&rft.date=2002-01-01&rft.volume=275&rft.issue=&rft.spage=113&rft.isbn=1901502864&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Groundwater quality 2001 conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 8 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; anaerobic environment; aquifers; chemical reactions; Eh; geochemistry; ground water; hydrocarbons; ions; kinetics; methane; nitrate ion; organic compounds; pollution; pore water; reduction; sediments; sulfate ion; transformations ER - TY - JOUR T1 - Interpreting tracer data to forecast remedial performance AN - 51854002; 2004-036203 AB - The cost of remediating sites contaminated with organics is high. Prior to investing in remedial technologies, decision makers want to know the benefits, both short term and long term, which will be derived from a proposed remedial activity. Recent studies have shown significant mass removals by a number of technologies, suggesting that mass removal is technically practicable. Most of these studies have been performed in relatively small controlled test cells and do not permit direct assessment of the benefits in terms of mass flux reduction downgradient from the test area. This paper investigates the potential use of tracers to estimate the heterogeneity of a flow field that is being remediated and the mass and distribution of a non-aqueous phase liquid (NAPL) within the flow field. The effects of the heterogeneity and NAPL distribution on the short-term performance of the remedial system are evaluated. JF - IAHS-AISH Publication AU - Enfield, Carl G AU - Wood, A Lynn AU - Brooks, Michael C AU - Annable, Michael D A2 - Thornton, Steven F. A2 - Oswald, Sascha E. Y1 - 2002 PY - 2002 DA - 2002 SP - 11 EP - 16 PB - International Association of Hydrological Sciences VL - 275 SN - 0144-7815, 0144-7815 KW - technology KW - contaminant plumes KW - pollution KW - optimization KW - mathematical models KW - decision-making KW - solubility KW - preferential flow KW - dense nonaqueous phase liquids KW - remediation KW - ground water KW - aquifers KW - nonaqueous phase liquids KW - models KW - stochastic processes KW - decontamination KW - tracers KW - mobility KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51854002?accountid=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=Interpreting+tracer+data+to+forecast+remedial+performance&rft.au=Enfield%2C+Carl+G%3BWood%2C+A+Lynn%3BBrooks%2C+Michael+C%3BAnnable%2C+Michael+D&rft.aulast=Enfield&rft.aufirst=Carl&rft.date=2002-01-01&rft.volume=275&rft.issue=&rft.spage=11&rft.isbn=1901502864&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Groundwater quality 2001 conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 15 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - aquifers; contaminant plumes; decision-making; decontamination; dense nonaqueous phase liquids; ground water; mathematical models; mobility; models; nonaqueous phase liquids; optimization; pollution; preferential flow; remediation; solubility; stochastic processes; technology; tracers ER - TY - JOUR T1 - Technology integration for contaminated site remediation; clean-up goals and performance criteria AN - 51853957; 2004-036289 AB - There is a need to develop and field-test integrated remediation technologies for cost-effective treatment of contaminated sites to achieve risk-based and rational endpoints. Aggressive technologies designed for rapid source-zone remediation must be linked to technologies for achieving enhanced clean up of the dissolved plume. Remediation technology integration should minimize the cost of achieving risk-based endpoints by selecting treatment trains or technology combinations that, when coupled together, work in a synergistic manner. Contaminant flux across a control plane immediately downgradient from the source, rather than contaminant concentration, should be used as the basis for evaluating the effectiveness or success of remediation. The acceptable threshold contaminant flux should be set equal to, or less than, the natural attenuation capacity within the dissolved plume. Simulation results show that significant contaminant-flux reductions can be achieved by partial removal of contaminant mass from DNAPL source zones. JF - IAHS-AISH Publication AU - Rao, P Suresh C AU - Jawitz, James W AU - Enfield, Carl G AU - Falta, Ronald W, Jr AU - Annable, Michael D AU - Wood, A Lynn A2 - Thornton, Steven F. A2 - Oswald, Sascha E. Y1 - 2002 PY - 2002 DA - 2002 SP - 571 EP - 578 PB - International Association of Hydrological Sciences VL - 275 SN - 0144-7815, 0144-7815 KW - water quality KW - technology KW - contaminant plumes KW - pollution KW - optimization KW - dense nonaqueous phase liquids KW - cost KW - remediation KW - ground water KW - aquifers KW - nonaqueous phase liquids KW - decontamination KW - water treatment KW - natural attenuation KW - risk assessment KW - water wells KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51853957?accountid=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=Technology+integration+for+contaminated+site+remediation%3B+clean-up+goals+and+performance+criteria&rft.au=Rao%2C+P+Suresh+C%3BJawitz%2C+James+W%3BEnfield%2C+Carl+G%3BFalta%2C+Ronald+W%2C+Jr%3BAnnable%2C+Michael+D%3BWood%2C+A+Lynn&rft.aulast=Rao&rft.aufirst=P+Suresh&rft.date=2002-01-01&rft.volume=275&rft.issue=&rft.spage=571&rft.isbn=1901502864&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Groundwater quality 2001 conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 21 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - aquifers; contaminant plumes; cost; decontamination; dense nonaqueous phase liquids; ground water; natural attenuation; nonaqueous phase liquids; optimization; pollution; remediation; risk assessment; technology; water quality; water treatment; water wells ER - TY - JOUR T1 - Surficial sediment contamination in lakes Erie and Ontario; a comparative analysis AN - 51848186; 2004-038628 AB - Sediment surveys were conducted in Lakes Erie and Ontario to characterize spatial trends in contamination, to assist in elucidation of possible sources of contamination, and for identification of area where contamination exceeded Canadian sediment quality guidelines for protection of aquatic biota. Sediment levels of metals including nickel, lead, zinc, chromium, and copper were compared to pre-colonial concentrations, and sediment enrichment factors, defined as the ratio of surficial concentrations to background concentrations determined from benthos cores, were calculated. Sediments in Lake Ontario exhibited elevated contamination compared to Lake Erie. The average enrichment factor for Lake Ontario (2.6) was comparable to the western basin in Lake Erie but greater than those for the central (1.3) and eastern (1.0) basins. There was a gradient toward decreasing sediment contamination from the western basin to the eastern basin of Lake Erie, and from the southern to the northern area of the central basin. Sediment contamination in Lake Ontario was similarly distributed across the three major depositional basins. The spatial distribution of metals was similar to those of other contaminants including mercury, polychlorinated biphenyls (PCBs), and polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDDs/PCDFs). Lake-wide averages of sediment mercury, PCBs and PCDDs/PCDFs in Lake Erie were 0.185 mu g/g, and 18.8 pg/g TEQs, respectively. Lake-wide averages of sediment mercury, PCBs and PCDDs/PCDFs in Lake Ontario were 0.586 mu g/g, 100 ng/g, and 101 pg/g TEQs, respectively. JF - Journal of Great Lakes Research AU - Marvin, Christopher H AU - Charlton, Murray N AU - Reiner, Eric J AU - Kolic, Terry AU - MacPherson, Karen AU - Stern, Gary A AU - Braekevelt, Eric AU - Estenik, J F AU - Thiessen, Lina AU - Painter, Scott Y1 - 2002 PY - 2002 DA - 2002 SP - 437 EP - 450 PB - International Association for Great Lakes Research (IAGLR), Ann Arbor, MI VL - 28 IS - 3 SN - 0380-1330, 0380-1330 KW - chlorinated hydrocarbons KW - North America KW - Lake Ontario KW - Lake Erie KW - pollutants KW - PCBs KW - pollution KW - effects KW - ecosystems KW - dioxins KW - distribution KW - spatial distribution KW - organic compounds KW - sampling KW - metals KW - halogenated hydrocarbons KW - Great Lakes KW - ecology KW - mercury KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51848186?accountid=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=Surficial+sediment+contamination+in+lakes+Erie+and+Ontario%3B+a+comparative+analysis&rft.au=Marvin%2C+Christopher+H%3BCharlton%2C+Murray+N%3BReiner%2C+Eric+J%3BKolic%2C+Terry%3BMacPherson%2C+Karen%3BStern%2C+Gary+A%3BBraekevelt%2C+Eric%3BEstenik%2C+J+F%3BThiessen%2C+Lina%3BPainter%2C+Scott&rft.aulast=Marvin&rft.aufirst=Christopher&rft.date=2002-01-01&rft.volume=28&rft.issue=3&rft.spage=437&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 - 2004-01-01 N1 - Number of references - 45 N1 - PubXState - MI N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JGLRDE N1 - SubjectsTermNotLitGenreText - chlorinated hydrocarbons; dioxins; distribution; ecology; ecosystems; effects; Great Lakes; halogenated hydrocarbons; Lake Erie; Lake Ontario; mercury; metals; North America; organic compounds; PCBs; pollutants; pollution; sampling; spatial distribution ER - TY - JOUR T1 - Engineering and economic evaluation of gas recovery and utilization technologies at selected US mines AN - 51685207; 2005-059571 JF - Environmental Science and Policy AU - Kirchgessner, David A AU - Masemore, Sushma S AU - Piccot, Stephen D Y1 - 2002 PY - 2002 DA - 2002 SP - 397 EP - 409 PB - Elsevier Science VL - 5 IS - 5 SN - 1462-9011, 1462-9011 KW - United States KW - mining KW - mines KW - technology KW - methane KW - underground mining KW - pollutants KW - aliphatic hydrocarbons KW - pollution KW - atmosphere KW - coal seams KW - alkanes KW - environmental effects KW - gas injection KW - organic compounds KW - hydrocarbons KW - economics KW - air KW - greenhouse effect KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51685207?accountid=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+Policy&rft.atitle=Engineering+and+economic+evaluation+of+gas+recovery+and+utilization+technologies+at+selected+US+mines&rft.au=Kirchgessner%2C+David+A%3BMasemore%2C+Sushma+S%3BPiccot%2C+Stephen+D&rft.aulast=Kirchgessner&rft.aufirst=David&rft.date=2002-01-01&rft.volume=5&rft.issue=5&rft.spage=397&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+and+Policy&rft.issn=14629011&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/14629011 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 22 N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - air; aliphatic hydrocarbons; alkanes; atmosphere; coal seams; economics; environmental effects; gas injection; greenhouse effect; hydrocarbons; methane; mines; mining; organic compounds; pollutants; pollution; technology; underground mining; United States ER - TY - JOUR T1 - Leviathan Mine Superfund site, CA; early response actions, phased investigation and cleanup AN - 51638403; 2006-012126 JF - Annual Meeting - Association of Engineering Geologists AU - Mayer, Kevin P AU - Luce, Gary AU - Buchanan, Kelvin J Y1 - 2002 PY - 2002 DA - 2002 SP - 76 PB - Association of Engineering Geologists, [location varies] VL - 45 SN - 0375-572X, 0375-572X KW - United States KW - Sierra Nevada KW - Leviathan Mine KW - California KW - water quality KW - acid mine drainage KW - Superfund KW - watersheds KW - pollution KW - water pollution KW - remediation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51638403?accountid=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+Meeting+-+Association+of+Engineering+Geologists&rft.atitle=Leviathan+Mine+Superfund+site%2C+CA%3B+early+response+actions%2C+phased+investigation+and+cleanup&rft.au=Mayer%2C+Kevin+P%3BLuce%2C+Gary%3BBuchanan%2C+Kelvin+J&rft.aulast=Mayer&rft.aufirst=Kevin&rft.date=2002-01-01&rft.volume=45&rft.issue=&rft.spage=76&rft.isbn=&rft.btitle=&rft.title=Annual+Meeting+-+Association+of+Engineering+Geologists&rft.issn=0375572X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AEG's 45th annual meeting and AIPG's 39th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - CAGPAV N1 - SubjectsTermNotLitGenreText - acid mine drainage; California; Leviathan Mine; pollution; remediation; Sierra Nevada; Superfund; United States; water pollution; water quality; watersheds ER - TY - JOUR T1 - Monitoring recovery of a crude oil-contaminated saltmarsh following in-situ remediation treatments AN - 51605198; 2006-029372 JF - Environmental Studies (Southampton) AU - Lee, K AU - Venosa, A D AU - Suidan, M T AU - Greer, C W AU - Wohlgeschaffen, G AU - Cobanli, C AU - Tremblay, G H AU - Gauthier, J AU - Doe, K G A2 - Brebbia, C. A. Y1 - 2002 PY - 2002 DA - 2002 SP - 127 EP - 137 PB - WIT Press, Southampton VL - 8 SN - 1462-6098, 1462-6098 KW - remediation KW - water treatment KW - oil spills KW - sediments KW - crude oil KW - ecology KW - Maritime Provinces KW - water pollution KW - Petpeswick Inlet KW - Conrod's Beach KW - experimental studies KW - monitoring KW - marshes KW - pollutants KW - surface water KW - pollution KW - bioremediation KW - nutrients KW - mires KW - salt marshes KW - Canada KW - wetlands KW - Nova Scotia KW - coastal environment KW - Eastern Canada KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51605198?accountid=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+Studies+%28Southampton%29&rft.atitle=Monitoring+recovery+of+a+crude+oil-contaminated+saltmarsh+following+in-situ+remediation+treatments&rft.au=Lee%2C+K%3BVenosa%2C+A+D%3BSuidan%2C+M+T%3BGreer%2C+C+W%3BWohlgeschaffen%2C+G%3BCobanli%2C+C%3BTremblay%2C+G+H%3BGauthier%2C+J%3BDoe%2C+K+G&rft.aulast=Lee&rft.aufirst=K&rft.date=2002-01-01&rft.volume=8&rft.issue=&rft.spage=127&rft.isbn=1853129216&rft.btitle=&rft.title=Environmental+Studies+%28Southampton%29&rft.issn=14626098&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fourth international conference on Environmental problems in coastal regions; Coastal environment IV N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 19 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bioremediation; Canada; coastal environment; Conrod's Beach; crude oil; Eastern Canada; ecology; experimental studies; Maritime Provinces; marshes; mires; monitoring; Nova Scotia; nutrients; oil spills; Petpeswick Inlet; pollutants; pollution; remediation; salt marshes; sediments; surface water; water pollution; water treatment; wetlands ER - TY - JOUR T1 - Bioremediation of oil-contaminated coastal freshwater and saltwater wetlands AN - 51602304; 2006-029373 JF - Environmental Studies (Southampton) AU - Venosa, A D AU - Suidan, M T AU - Lee, K AU - Cobanli, S E AU - Garcia-Blanco, S AU - Haines, J R A2 - Brebbia, C. A. Y1 - 2002 PY - 2002 DA - 2002 SP - 139 EP - 148 PB - WIT Press, Southampton VL - 8 SN - 1462-6098, 1462-6098 KW - Quebec KW - aliphatic hydrocarbons KW - fresh water KW - vegetation KW - salt water KW - remediation KW - Saint Lawrence River KW - oil spills KW - ecology KW - Maritime Provinces KW - water pollution KW - Petpeswick Inlet KW - Conrod's Beach KW - North America KW - biodegradation KW - marshes KW - surface water KW - pollution KW - alkanes KW - bioremediation KW - nutrients KW - organic compounds KW - mires KW - salt marshes KW - Canada KW - wetlands KW - Sainte Croix de Lotibiniere Quebec KW - Nova Scotia KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - coastal environment KW - Eastern Canada KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51602304?accountid=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+Studies+%28Southampton%29&rft.atitle=Bioremediation+of+oil-contaminated+coastal+freshwater+and+saltwater+wetlands&rft.au=Venosa%2C+A+D%3BSuidan%2C+M+T%3BLee%2C+K%3BCobanli%2C+S+E%3BGarcia-Blanco%2C+S%3BHaines%2C+J+R&rft.aulast=Venosa&rft.aufirst=A&rft.date=2002-01-01&rft.volume=8&rft.issue=&rft.spage=139&rft.isbn=1853129216&rft.btitle=&rft.title=Environmental+Studies+%28Southampton%29&rft.issn=14626098&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fourth international conference on Environmental problems in coastal regions; Coastal environment IV N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 4 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; aromatic hydrocarbons; biodegradation; bioremediation; Canada; coastal environment; Conrod's Beach; Eastern Canada; ecology; fresh water; hydrocarbons; Maritime Provinces; marshes; mires; North America; Nova Scotia; nutrients; oil spills; organic compounds; Petpeswick Inlet; pollution; polycyclic aromatic hydrocarbons; Quebec; remediation; Saint Lawrence River; Sainte Croix de Lotibiniere Quebec; salt marshes; salt water; surface water; vegetation; water pollution; wetlands ER - TY - JOUR T1 - Riverbank filtration as a pretreatment for nanofiltration membranes AN - 51526829; 2006-086524 JF - Water Science and Technology Library AU - Speth, Thomas F AU - Merkel, Till AU - Gusses, Alison M A2 - Ray, Chittaranjan A2 - Melin, Gina A2 - Linsky, Ronald B. Y1 - 2002 PY - 2002 DA - 2002 SP - 261 EP - 265 PB - Springer, Dordrecht VL - 43 SN - 0921-092X, 0921-092X KW - United States KW - water quality KW - drinking water KW - ground water KW - river banks KW - Hamilton County Ohio KW - filtration KW - water treatment KW - Cincinnati Ohio KW - Jefferson County Kentucky KW - Ohio River KW - Ohio KW - water supply KW - effluents KW - pollution KW - geomembranes KW - aquifers KW - infiltration KW - Harsha Lake KW - Kentucky KW - hydraulic conductivity KW - water wells KW - design KW - Louisville Kentucky KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51526829?accountid=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+Science+and+Technology+Library&rft.atitle=Riverbank+filtration+as+a+pretreatment+for+nanofiltration+membranes&rft.au=Speth%2C+Thomas+F%3BMerkel%2C+Till%3BGusses%2C+Alison+M&rft.aulast=Speth&rft.aufirst=Thomas&rft.date=2002-01-01&rft.volume=43&rft.issue=&rft.spage=261&rft.isbn=1402011334&rft.btitle=&rft.title=Water+Science+and+Technology+Library&rft.issn=0921092X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 7 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; Cincinnati Ohio; design; drinking water; effluents; filtration; geomembranes; ground water; Hamilton County Ohio; Harsha Lake; hydraulic conductivity; infiltration; Jefferson County Kentucky; Kentucky; Louisville Kentucky; Ohio; Ohio River; pollution; river banks; United States; water quality; water supply; water treatment; water wells ER - TY - JOUR T1 - Reduction in disinfection byproduct precursors and pathogens during riverbank filtration at three Midwestern United States drinking-water utilities AN - 51526325; 2006-086521 JF - Water Science and Technology Library AU - Weiss, W Joshua AU - Bouwer, Edward J AU - Ball, William P AU - O'Melia, Charles R AU - Arora, Harish AU - Speth, Thomas F A2 - Ray, Chittaranjan A2 - Melin, Gina A2 - Linsky, Ronald B. Y1 - 2002 PY - 2002 DA - 2002 SP - 147 EP - 173 PB - Springer, Dordrecht VL - 43 SN - 0921-092X, 0921-092X KW - United States KW - water quality KW - sorption KW - Missouri River KW - Missouri KW - suspended materials KW - Platte County Missouri KW - environmental analysis KW - drinking water KW - Vigo County Indiana KW - ground water KW - carcinogens KW - Jeffersonville Indiana KW - river banks KW - decontamination KW - filtration KW - water treatment KW - Indiana KW - Ohio River KW - biodegradation KW - Wabash River KW - pollutants KW - pollution KW - Terre Haute Indiana KW - rates KW - aquifers KW - recharge KW - Clark County Indiana KW - risk assessment KW - Parkville Missouri KW - Midwest KW - microorganisms KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51526325?accountid=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+Science+and+Technology+Library&rft.atitle=Reduction+in+disinfection+byproduct+precursors+and+pathogens+during+riverbank+filtration+at+three+Midwestern+United+States+drinking-water+utilities&rft.au=Weiss%2C+W+Joshua%3BBouwer%2C+Edward+J%3BBall%2C+William+P%3BO%27Melia%2C+Charles+R%3BArora%2C+Harish%3BSpeth%2C+Thomas+F&rft.aulast=Weiss&rft.aufirst=W&rft.date=2002-01-01&rft.volume=43&rft.issue=&rft.spage=147&rft.isbn=1402011334&rft.btitle=&rft.title=Water+Science+and+Technology+Library&rft.issn=0921092X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 26 N1 - Document feature - illus. incl. 25 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; biodegradation; carcinogens; Clark County Indiana; decontamination; drinking water; environmental analysis; filtration; ground water; Indiana; Jeffersonville Indiana; microorganisms; Midwest; Missouri; Missouri River; Ohio River; Parkville Missouri; Platte County Missouri; pollutants; pollution; rates; recharge; risk assessment; river banks; sorption; suspended materials; Terre Haute Indiana; United States; Vigo County Indiana; Wabash River; water quality; water treatment ER - TY - JOUR T1 - Impact of oil production releases on some soil chemical properties at the O.S.P.E.R. field site AN - 51401884; 2007-077067 JF - Annual International Petroleum Environmental Conference AU - Kampbell, Don H AU - An, Youn-Joo AU - Kirby, Wendy G AU - Abbott, Marvin M AU - Anonymous Y1 - 2002 PY - 2002 DA - 2002 EP - unpaginated PB - Integrated Petroleum Environmental Consortium VL - 9 KW - United States KW - soils KW - chlorine KW - total petroleum hydrocarbons KW - biomass KW - Skiatook Lake KW - halogens KW - pollution KW - petroleum products KW - Osage County Oklahoma KW - dehydrogenase KW - organic compounds KW - Oklahoma KW - conductivity KW - chloride ion KW - brines KW - hydrocarbons KW - chemical properties KW - nitrate ion KW - activity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51401884?accountid=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=Impact+of+oil+production+releases+on+some+soil+chemical+properties+at+the+O.S.P.E.R.+field+site&rft.au=Kampbell%2C+Don+H%3BAn%2C+Youn-Joo%3BKirby%2C+Wendy+G%3BAbbott%2C+Marvin+M%3BAnonymous&rft.aulast=Kampbell&rft.aufirst=Don&rft.date=2002-01-01&rft.volume=9&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Annual+International+Petroleum+Environmental+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 9th annual international petroleum environmental conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 3 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #06796 N1 - SubjectsTermNotLitGenreText - activity; biomass; brines; chemical properties; chloride ion; chlorine; conductivity; dehydrogenase; halogens; hydrocarbons; nitrate ion; Oklahoma; organic compounds; Osage County Oklahoma; petroleum products; pollution; Skiatook Lake; soils; total petroleum hydrocarbons; United States ER - TY - JOUR T1 - Geo-ecology and management of sensitive montane landscapes AN - 51335128; 2003-031121 AB - Montane (alpine) areas are generally of high value for nature conservation. Such environments and the habitats they support are dynamic and often fragile. They are vulnerable to disturbance from a range of human activities and are responsive to climate changes over short and long timescales. Biodiversity and conservation values are closely linked to geological history, geomorphological processes and soils, and it is crucial that management systems are based on understanding these links. There are many similarities between the Cairngorm Mountains (Scotland), the Giant Mountains (Czech Republic) and Abisko Mountains (Sweden) in terms of geology, geomorphology, ecology, links with biodiversity and high conservation importance. Comparable pressures and management issues involve, to varying degrees, a history of human use and impacts from deforestation, pasturing, grazing, recreation and atmospheric pollution. Landscape change therefore involves a complex interplay between natural and anthropogenic factors. Managing such change requires better understanding of the geo-ecological processes involved and the factors that determine landscape sensitivity. This is illustrated through a simple framework and examples from the three areas. Comparison of landscape sensitivity between similar montane areas, but in different geographic locations and climatic environments, should allow more informed management planning and a precautionary approach in advance of further changes in human activity and from predicted global warming scenarios. JF - Geografiska Annaler. Series A: Physical Geography AU - Gordon, John E AU - Dvorak, Igor J AU - Jonasson, Christer AU - Josefsson, Melanie AU - Kocianova, Milena AU - Thompson, Des B A Y1 - 2002 PY - 2002 DA - 2002 SP - 193 EP - 203 PB - Generalstabens Litografiska Anstlalt, Stockholm VL - 84 IS - 3-4 SN - 0435-3676, 0435-3676 KW - subalpine environment KW - terrestrial environment KW - Grampian Highlands KW - global change KW - Europe KW - recreation KW - environmental analysis KW - Great Britain KW - mountains KW - conservation KW - Central Europe KW - ecology KW - species diversity KW - deforestation KW - climate KW - Cairngorm Mountains KW - global warming KW - soils KW - Western Europe KW - Karkonosze Mountains KW - human activity KW - Bohemia KW - landform evolution KW - pollution KW - United Kingdom KW - Scottish Highlands KW - Scotland KW - habitat KW - Scandinavia KW - Czech Republic KW - planning KW - Sudeten Mountains KW - landscapes KW - preservation KW - Sweden KW - 23:Geomorphology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51335128?accountid=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=Geografiska+Annaler.+Series+A%3A+Physical+Geography&rft.atitle=Geo-ecology+and+management+of+sensitive+montane+landscapes&rft.au=Gordon%2C+John+E%3BDvorak%2C+Igor+J%3BJonasson%2C+Christer%3BJosefsson%2C+Melanie%3BKocianova%2C+Milena%3BThompson%2C+Des+B+A&rft.aulast=Gordon&rft.aufirst=John&rft.date=2002-01-01&rft.volume=84&rft.issue=3-4&rft.spage=193&rft.isbn=&rft.btitle=&rft.title=Geografiska+Annaler.+Series+A%3A+Physical+Geography&rft.issn=04353676&rft_id=info:doi/ L2 - http://www.blackwellpublishing.com/journal.asp?ref=0435-3676 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique, Vandoeuvre-les-Nancy, France N1 - Date revised - 2003-01-01 N1 - Document feature - 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GAPGAP N1 - SubjectsTermNotLitGenreText - Bohemia; Cairngorm Mountains; Central Europe; climate; conservation; Czech Republic; deforestation; ecology; environmental analysis; Europe; global change; global warming; Grampian Highlands; Great Britain; habitat; human activity; Karkonosze Mountains; landform evolution; landscapes; mountains; planning; pollution; preservation; recreation; Scandinavia; Scotland; Scottish Highlands; soils; species diversity; subalpine environment; Sudeten Mountains; Sweden; terrestrial environment; United Kingdom; Western Europe ER - TY - JOUR T1 - Regulation of arsenic in drinking water affects ground water systems AN - 51178354; 2002-048873 JF - Ground Water Monitoring & Remediation AU - Job, Charles Y1 - 2002 PY - 2002 DA - 2002 SP - 40 EP - 43 PB - Ground Water Publishing Co., Dublin, OH VL - 22 IS - 1 SN - 1069-3629, 1069-3629 KW - toxic materials KW - monitoring KW - regulations KW - arsenic KW - pollution KW - standardization KW - decision-making KW - Safe Drinking Water Act KW - drinking water KW - cost KW - remediation KW - ground water KW - carcinogens KW - safety KW - toxicity KW - metals KW - water treatment KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51178354?accountid=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=Regulation+of+arsenic+in+drinking+water+affects+ground+water+systems&rft.au=Job%2C+Charles&rft.aulast=Job&rft.aufirst=Charles&rft.date=2002-01-01&rft.volume=22&rft.issue=1&rft.spage=40&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 - 4 tables N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - arsenic; carcinogens; cost; decision-making; drinking water; ground water; metals; monitoring; pollution; public health; regulations; remediation; Safe Drinking Water Act; safety; standardization; toxic materials; toxicity; water treatment ER - TY - JOUR T1 - Technical challenges of beneficially reusing reclaimed groundwater AN - 51154619; 2003-078018 JF - American Water Resources Association Technical Publication Series AU - Schneider, William H AU - Lowe, William L AU - Davies, Kathryn AU - Hirsh, Steven AU - Wrobel, John AU - Anonymous Y1 - 2002 PY - 2002 DA - 2002 SP - 309 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 02-4 SN - 1070-6763, 1070-6763 KW - United States KW - water quality KW - water supply KW - experimental studies KW - recycling KW - pollutants KW - Aberdeen Proving Ground KW - pollution KW - drinking water KW - cost KW - Canal Creek KW - ground water KW - aquifers KW - models KW - volatiles KW - Harford County Maryland KW - economics KW - Maryland KW - water resources KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51154619?accountid=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=American+Water+Resources+Association+Technical+Publication+Series&rft.atitle=Technical+challenges+of+beneficially+reusing+reclaimed+groundwater&rft.au=Schneider%2C+William+H%3BLowe%2C+William+L%3BDavies%2C+Kathryn%3BHirsh%2C+Steven%3BWrobel%2C+John%3BAnonymous&rft.aulast=Schneider&rft.aufirst=William&rft.date=2002-01-01&rft.volume=02-4&rft.issue=&rft.spage=309&rft.isbn=&rft.btitle=&rft.title=American+Water+Resources+Association+Technical+Publication+Series&rft.issn=10706763&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 2002 annual water resources conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - MD N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Aberdeen Proving Ground; aquifers; Canal Creek; cost; drinking water; economics; experimental studies; ground water; Harford County Maryland; Maryland; models; pollutants; pollution; recycling; United States; volatiles; water quality; water resources; water supply ER - TY - JOUR T1 - Development and innovative use of low-cost plastic liners for temporary sealing of open boreholes in a fractured carbonate aquifer AN - 51154582; 2003-078008 JF - American Water Resources Association Technical Publication Series AU - Carleton, G B AU - Best, E W AU - Alvey, R AU - Mason, J M AU - Rosenberg, M J AU - Lee, K Y AU - Anonymous Y1 - 2002 PY - 2002 DA - 2002 SP - 270 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 02-4 SN - 1070-6763, 1070-6763 KW - fractured materials KW - sealing KW - well-logging KW - pollution KW - plastic materials KW - ground water KW - aquifers KW - environmental management KW - fractures KW - sedimentary rocks KW - boreholes KW - movement KW - carbonate rocks KW - water wells KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51154582?accountid=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=American+Water+Resources+Association+Technical+Publication+Series&rft.atitle=Development+and+innovative+use+of+low-cost+plastic+liners+for+temporary+sealing+of+open+boreholes+in+a+fractured+carbonate+aquifer&rft.au=Carleton%2C+G+B%3BBest%2C+E+W%3BAlvey%2C+R%3BMason%2C+J+M%3BRosenberg%2C+M+J%3BLee%2C+K+Y%3BAnonymous&rft.aulast=Carleton&rft.aufirst=G&rft.date=2002-01-01&rft.volume=02-4&rft.issue=&rft.spage=270&rft.isbn=&rft.btitle=&rft.title=American+Water+Resources+Association+Technical+Publication+Series&rft.issn=10706763&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 2002 annual water resources conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - MD N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; boreholes; carbonate rocks; environmental management; fractured materials; fractures; ground water; movement; plastic materials; pollution; sealing; sedimentary rocks; water wells; well-logging ER - TY - JOUR T1 - Predicting chlorine residuals in drinking water: Second order model AN - 27659859; 200206-41-0280 (CE); 0603892 (EN) AB - A major objective of drinking water treatment is to provide water that is both microbiologically and chemically safe for human consumption. Drinking water chlorination, therefore, poses a dilemma. Chemical disinfection reduces the risk of infectious disease, but the interaction between chemical disinfectants and precursor materials in source water may result in potentially harmful by-products. Chlorine consumption results in the formation of by-products, and the loss of chlorine residual reduces protection against potentially pathogenic bacteria. Therefore, much effort has been invested in characterizing the loss of chlorine residuals in raw and treated water. This paper presents a mathematical model based on the use of two second-order terms for predicting this loss or decay. JF - Journal of Water Resources Planning and Management [J. Water Resour. Plann. Manage.] AU - Clark, Robert M AU - Sivaganesan, Mano AD - Natl. Risk Management Research Lab. U.S. Environmental Protection Agency, Cincinnati, OH 45268, United States PY - 2002 SP - 152 EP - 161 PB - American Society of Civil Engineers, 1801 Alexander Bell Drive, Reston, VA, 20191-4400, USA, [mailto:journal-services@asce.org], [URL:http://www.asce.org] VL - 128 IS - 2 SN - 0733-9496, 0733-9496 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Drinking water KW - Chlorine KW - Mathematical models KW - Byproducts KW - Consumption KW - Management KW - Chlorination KW - Article KW - EE 461.7:Health Care KW - EE 802.2:Chemical Reactions KW - EE 444:Water Resources KW - EE 445.1:Water Treatment Techniques KW - EE 461.9:Biology (EN) KW - EE 802.3:Chemical Operations UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/27659859?accountid=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=Journal+of+Water+Resources+Planning+and+Management+%5BJ.+Water+Resour.+Plann.+Manage.%5D&rft.atitle=Predicting+chlorine+residuals+in+drinking+water%3A+Second+order+model&rft.au=Clark%2C+Robert+M%3BSivaganesan%2C+Mano&rft.aulast=Clark&rft.aufirst=Robert&rft.date=2002-01-01&rft.volume=128&rft.issue=2&rft.spage=152&rft.isbn=&rft.btitle=&rft.title=Journal+of+Water+Resources+Planning+and+Management+%5BJ.+Water+Resour.+Plann.+Manage.%5D&rft.issn=07339496&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Relationship between trihalomethanes and haloacetic acids with total organic halogen during chlorination AN - 20966245; 11048837 AB - The effects of bromide ion, pH and reaction time on the formation of four trihalomethanes, nine haloacetic acids and total organic halogens in chlorinated drinking water have been investigated. In this extensive study, the relationship of total trihalomethanes and total haloacetic acids with total organic halogen have been evaluated. The study determined the concentration range of nine haloacetic acids and four trihalomethanes as a percentage of total organic halogen. The results showed that the percentage of total organic halogen made up of total trihalomethanes plus total haloacetic acids significantly increases with increasing bromide ion concentrations and pH. These observations suggest that both a higher bromide concentration and pH cause the formation of mainly brominated trihalomethanes with the reduction of haloacetic acids which could be identified and quantified by current USEPA methods. JF - Water Science & Technology: Water Supply AU - Pourmoghaddas, H AU - Stevens, A A AD - *Department of Environmental Health, School of Health, University of Medical Sciences, Isfahan, Iran**Environmental Protection Agency, Cincinnati, Ohio, USA Y1 - 2002 PY - 2002 DA - 2002 SP - 509 EP - 514 VL - 2 IS - 5-6 SN - 1606-9749, 1606-9749 KW - Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts; Environment Abstracts KW - Halogens KW - Byproducts KW - Water Supply KW - Hydrogen Ion Concentration KW - Water supplies KW - Drinking Water KW - Water treatment KW - Bromides KW - Acids KW - Trihalomethanes KW - Chlorination KW - Drinking water KW - pH KW - AQ 00001:Water Resources and Supplies KW - P 2000:FRESHWATER POLLUTION KW - SW 0810:General KW - ENA 16:Renewable Resources-Water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20966245?accountid=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+Science+%26+Technology%3A+Water+Supply&rft.atitle=Relationship+between+trihalomethanes+and+haloacetic+acids+with+total+organic+halogen+during+chlorination&rft.au=Pourmoghaddas%2C+H%3BStevens%2C+A+A&rft.aulast=Pourmoghaddas&rft.aufirst=H&rft.date=2002-01-01&rft.volume=2&rft.issue=5-6&rft.spage=509&rft.isbn=&rft.btitle=&rft.title=Water+Science+%26+Technology%3A+Water+Supply&rft.issn=16069749&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-10-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Water treatment; Trihalomethanes; Byproducts; Chlorination; Drinking water; Water supplies; pH; Drinking Water; Bromides; Halogens; Acids; Water Supply; Hydrogen Ion Concentration ER - TY - JOUR T1 - Automated event sampling for microbiological and related analytes in remote sites: a comprehensive system AN - 20965385; 11048720 AB - Pathogen concentrations are most often monitored during dry weather. Generally in Australia, however, loads mobilised during storms are of more concern. The filling of reservoirs commonly occurs from heavy rain events, and flood inputs may destabilise reservoir hydraulics leading to short-circuiting of contaminates to water supply off-takes. To capture storm events that can occur rapidly in remote locations at any time, automated sampling would seem appropriate. Unfortunately no commercial sampling system appears suitable for collecting multiple large volume samples along a hydrograph. We report here the development of an Event Sampling System (ESS) and associated resources, designed to address the special needs of microbiological sampling and varying event and site characteristics. The resultant ESSs consist of a standardised sampling module, enclosed in housings suited to different circumstances that is currently being field tested at six sites. Sampling module components include ISCO samplers modified to collect 24 ten litre ambient and 24 one litre refrigerated samples at remote sites along with in situ stream data. Essential to this hardware are sample collection and ESS management protocols covering issues such as storm warning, collection team mobilisation, laboratory coordination, ESS commissioning and maintenance. Some issues remain to be addressed, hence the resulting ESSs are seen as prototypes in the development of standardised storm-event based microbiological sampling well suited to remote locations. JF - Water Science & Technology: Water Supply AU - Roser, D AU - Skinner, J AU - Lemaitre, C AU - Marshall, L AU - Baldwin, J AU - Billington, K AU - Kotz, S AU - Clarkson, K AU - Ashbolt, N AD - *Centre for Water and Waste Technology, Cooperative Research Centre for Water Quality and Treatment, School of Civil and Environmental Engineering, University of New South Wales, Sydney NSW 2052, Australia **Ecowise Environmental Ltd., PO Box 1834, Fyshwick ACT 2609, Australia ***Ecowise Environmental Ltd., PO Box 1834, Fyshwick ACT 2609, Australia ****Centre for Water and Waste Technology, Cooperative Research Centre for Water Quality and Treatment, School of Civil and Environmental Engineering, University of New South Wales, Sydney NSW 2052, Australia *****Ecowise Environmental Ltd., PO Box 1834, Fyshwick ACT 2609, Australia ******South Australia EPA Mount Lofty Ranges Watershed Protection Office, Suite 2, 85 Mount Barker Road, Stirling SA 5152, Australia Y1 - 2002 PY - 2002 DA - 2002 SP - 123 EP - 130 VL - 2 IS - 3 SN - 1606-9749, 1606-9749 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts; Environment Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Hydraulics KW - Water reservoirs KW - prototypes KW - Water Supply KW - Automation KW - Storms KW - Water supplies KW - Reservoirs KW - Weather KW - Microorganisms KW - Resource development KW - Pollution monitoring KW - Housing KW - Streams KW - Floods KW - Australia KW - Sampling KW - Data processing KW - Pathogens KW - Samplers KW - Maintenance KW - Water pollution KW - Water supply KW - Rain KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - A 01450:Environmental Pollution & Waste Treatment KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20965385?accountid=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+Science+%26+Technology%3A+Water+Supply&rft.atitle=Automated+event+sampling+for+microbiological+and+related+analytes+in+remote+sites%3A+a+comprehensive+system&rft.au=Roser%2C+D%3BSkinner%2C+J%3BLemaitre%2C+C%3BMarshall%2C+L%3BBaldwin%2C+J%3BBillington%2C+K%3BKotz%2C+S%3BClarkson%2C+K%3BAshbolt%2C+N&rft.aulast=Roser&rft.aufirst=D&rft.date=2002-01-01&rft.volume=2&rft.issue=3&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Water+Science+%26+Technology%3A+Water+Supply&rft.issn=16069749&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-10-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Pollution monitoring; Water reservoirs; Automation; Sampling; Pathogens; Resource development; Samplers; Water pollution; Water supply; Hydraulics; Weather; Data processing; Housing; Floods; Rain; Water supplies; Storms; prototypes; Reservoirs; Maintenance; Water Supply; Microorganisms; Streams; Australia ER - TY - JOUR T1 - Denaturing gradient gel electrophoresis analysis of a methyl tert-butyl ether degrading culture applied in a membrane bioreactor; Denaturing gradient gel electrophoresis analysis of a methyl tert-butyl ether degrading culture applied in a membrane bioreactor AN - 20961319; 11048691 AB - A membrane bioreactor (MBR) was operated for the removal of methyl tert-butyl ether (MTBE) from water. Although the reactor was seeded with several cultures acclimated to MTBE degradation, a long start-up time was observed. Monitoring of the reactor with denaturing gradient gel electrophoresis (DGGE) revealed a dramatic shift in the MBR culture from the original seed culture, indicating that the membrane had exerted a selective pressure on the culture. The MBR culture was found to be dominated almost entirely by Sphingomonas, belonging to the a-4 subclass of the a-Proteobacteria. Several unique properties of Sphingomonas, including their characteristic outer membrane containing glycosphingolipids, as well as their extreme adeptness at xenobiotic degradation are hypothesized to have aided in their selection in this bioreactor. JF - Water Science & Technology: Water Supply AU - Pruden, A AU - Suidan, M AU - Morrison, J AU - Venosa, A AD - *Department of Civil and Environmental Engineering, M.L. 0071, University of Cincinnati, Cincinnati, OH, U.S.A., 45221 **Department of Civil and Environmental Engineering, M.L. 0071, University of Cincinnati, Cincinnati, OH, U.S.A., 45221. (E-mail: makram.suidan[at]uc.edu) ***Department of Civil and Environmental Engineering, M.L. 0071, University of Cincinnati, Cincinnati, OH, U.S.A., 45221****U.S. Environmental Protection Agency, National Risk Management Research Laboratory, Cincinnati, OH, U.S.A., 25268. (E-mail: Venosa.Albert[at]epamail.epa.gov) Y1 - 2002 PY - 2002 DA - 2002 SP - 207 EP - 212 VL - 2 IS - 2 SN - 1606-9749, 1606-9749 KW - Microbiology Abstracts B: Bacteriology; Aqualine Abstracts; Pollution Abstracts; Biotechnology and Bioengineering Abstracts; Water Resources Abstracts; Environment Abstracts KW - Sphingomonas KW - Membranes KW - Bioreactors KW - P 2000:FRESHWATER POLLUTION KW - SW 3010:Identification of pollutants KW - J 02420:Plant Diseases KW - ENA 16:Renewable Resources-Water KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - W 30900:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20961319?accountid=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+Science+%26+Technology%3A+Water+Supply&rft.atitle=Denaturing+gradient+gel+electrophoresis+analysis+of+a+methyl+tert-butyl+ether+degrading+culture+applied+in+a+membrane+bioreactor%3B+Denaturing+gradient+gel+electrophoresis+analysis+of+a+methyl+tert-butyl+ether+degrading+culture+applied+in+a+membrane+bioreactor&rft.au=Pruden%2C+A%3BSuidan%2C+M%3BMorrison%2C+J%3BVenosa%2C+A&rft.aulast=Pruden&rft.aufirst=A&rft.date=2002-01-01&rft.volume=2&rft.issue=2&rft.spage=207&rft.isbn=&rft.btitle=&rft.title=Water+Science+%26+Technology%3A+Water+Supply&rft.issn=16069749&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-10-01 N1 - Last updated - 2014-02-11 N1 - SubjectsTermNotLitGenreText - Bioreactors; Membranes; Sphingomonas ER - TY - JOUR T1 - Depressed filtration ripening enhances removal of Cryptosporidium parvum AN - 20955158; 11048724 AB - Pilot-scale experiments were conducted to investigate removal of Cryptosporidium parvum by contact granular filtration. The research demonstrated enhanced removal of Cryptosporidium parvum in the presence of kaolin particles. This is believed to be due electrostatic adhesion of Cryptosporidium parvum oocysts to the kaolin clay particles. The elementary physico-chemical interactions between filter granules and suspension particles will be discussed. This innovative concept was successfully implemented to reduce the ripening sequence of subsequent filtration experimental test runs by the addition of large surface area particles to slurry of kaolin and Cryptosporidium parvum in surface water. JF - Water Science & Technology: Water Supply AU - Gitis, V AU - Haught, R C AU - Clark, R M AU - Krishnan, E Radha AD - *Department of Civil and Environmental Engineering, University of Cincinnati, Cincinnati OH 45221-0071, USA **USA EPA, Office of Research and Development, NRMRL, Water Supply and Water Resources Division, 26 W. Martin Luther King Dr, Cincinnati OH 45268, USA ***USA EPA, Office of Research and Development, NRMRL, Water Supply and Water Resources Division, 26 W. Martin Luther King Dr, Cincinnati OH 45268, USA ****IT Corporation, 11499 Chester Road., Cincinnati OH 45246, USA Y1 - 2002 PY - 2002 DA - 2002 SP - 159 EP - 168 VL - 2 IS - 3 SN - 1606-9749, 1606-9749 KW - Virology & AIDS Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Aqualine Abstracts; Water Resources Abstracts; Environment Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Granules KW - Physicochemical Properties KW - Surface water KW - Water Supply KW - Surface Water KW - Particulates KW - Water supplies KW - Clays KW - Ripening KW - Resuspended sediments KW - Slurries KW - Pilot Plants KW - Suspension KW - Clay KW - Oocysts KW - Surface area KW - Physicochemical properties KW - Kaolin KW - Adhesion KW - Cryptosporidium parvum KW - Water supply KW - Filters KW - Filtration KW - Cryptosporidium KW - adhesion KW - surface area KW - AQ 00001:Water Resources and Supplies KW - V 22300:Methods KW - SW 0810:General KW - K 03300:Methods KW - Q1 08101:General works KW - Q5 08524:Public health, medicines, dangerous organisms KW - ENA 04:Environmental Education UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20955158?accountid=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+Science+%26+Technology%3A+Water+Supply&rft.atitle=Depressed+filtration+ripening+enhances+removal+of+Cryptosporidium+parvum&rft.au=Gitis%2C+V%3BHaught%2C+R+C%3BClark%2C+R+M%3BKrishnan%2C+E+Radha&rft.aulast=Gitis&rft.aufirst=V&rft.date=2002-01-01&rft.volume=2&rft.issue=3&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=Water+Science+%26+Technology%3A+Water+Supply&rft.issn=16069749&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-10-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Resuspended sediments; Filtration; Slurries; Kaolin; Adhesion; Water supply; Filters; Granules; Ripening; Oocysts; Surface water; Surface area; Water supplies; Clays; Clay; Physicochemical properties; adhesion; Particulates; surface area; Suspension; Physicochemical Properties; Cryptosporidium; Water Supply; Surface Water; Pilot Plants; Cryptosporidium parvum ER - TY - JOUR T1 - Evolutionary and Ecological Effects of Multi-Generational Exposures to Anthropogenic Stressors AN - 20714576; 5355361 AB - Biological and ecological responses to stress are dictated by duration and frequency, as well as instantaneous magnitude. Conditional compensatory responses at the physiological and behavioral levels, referred to as 'acclimation', may mitigate effects on individuals experiencing brief or infrequent periods of moderate stress. However, even modest stress over extended periods may reduce the fitness of some or all exposed individuals. In this way, specific stress that persists over multiple generations will increase probabilities for extinction of populations composed of sensitive individuals. For populations whose members demonstrate variance and heritability for stressor response, this selective loss of sensitive individuals may result in populations dominated by resistant individuals. The formation of these 'adapted' populations may be considered an ecological compensatory mechanism to multi-generational stress. Paradoxically, the biological costs to individuals of toxicity and physiological acclimation may result in obvious signs of stress in affected wildlife populations while the costs of genetic adaptation may be more covert. It is important to consider such costs because recent evidence suggests that anthropogenic stressors have acted as powerful selection agents that have modified the composition of wildlife populations subjected for successive generational exposures to specific stressors. This essay focuses on a case study where adaptation has been demonstrated in fish populations with a history of chronic exposure to persistent, bioaccumulative and toxic environmental contaminants. Because the magnitude, breadth and long-term outcomes of such changes are unknown, ecological risk assessments that are limited in focus to short-term exposures and consequences may seriously underestimate the ecological and evolutionary impacts of anthropogenic stressors. JF - Human and Ecological Risk Assessment AU - Nacci, DE AU - Gleason, T R AU - Munns, WR Jr AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, 27 Tarzwell Drive, Narragansett, RI 02882, USA, nacci.diane@epamail.epa.gov Y1 - 2002/01// PY - 2002 DA - Jan 2002 SP - 91 EP - 97 VL - 8 IS - 1 SN - 1080-7039, 1080-7039 KW - ecology KW - exposure KW - multi-generation studies KW - stressors KW - Pollution Abstracts; ASFA 1: Biological Sciences & Living Resources; Risk Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Toxicology Abstracts KW - Risk assessment KW - Historical account KW - Biological stress KW - Physiology KW - Man-induced effects KW - Ecological Effects KW - Freshwater fish KW - Risks KW - Duration KW - Environmental effects KW - extinction KW - anthropogenic factors KW - Wildlife KW - Environmental impact KW - Stress KW - Human Population KW - Toxicity KW - Water pollution KW - case studies KW - Acclimation KW - Bioaccumulation KW - Water Pollution Effects KW - Evolution KW - Q1 08345:Genetics and evolution KW - X 24240:Miscellaneous KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - R2 23050:Environment KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20714576?accountid=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=Human+and+Ecological+Risk+Assessment&rft.atitle=Evolutionary+and+Ecological+Effects+of+Multi-Generational+Exposures+to+Anthropogenic+Stressors&rft.au=Nacci%2C+DE%3BGleason%2C+T+R%3BMunns%2C+WR+Jr&rft.aulast=Nacci&rft.aufirst=DE&rft.date=2002-01-01&rft.volume=8&rft.issue=1&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=Human+and+Ecological+Risk+Assessment&rft.issn=10807039&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-12-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Biological stress; Acclimation; Bioaccumulation; Duration; Environmental effects; Environmental impact; Man-induced effects; Toxicity; Freshwater fish; Risks; Water pollution; Evolution; Stress; case studies; Risk assessment; Historical account; anthropogenic factors; Physiology; Wildlife; extinction; Water Pollution Effects; Human Population; Ecological Effects ER - TY - JOUR T1 - Temporal and Spatial Trends in Persistent Organic Pollutants AN - 20257023; 8803486 AB - Goal and Scope. Persistent organic pollutants (POPs) enter the natural environment via a multitude of pathways. The ubiquitous dioxins and furans (PCDD/Fs) are inadvertently formed during chemical and thermal processes, enter the food chain, and bioconcentrate in human tissues. Residues of chlorinated pesticides (OCPs) and polychlorinated biphenyls (PCBs) persist in the food chain and in human tissues, long after their use has been discontinued. Polybrominated diphenyl ethers (PBDEs), recently introduced as flame retardants, show increasing trends in biota. Common features of all these chemical classes are their environmental persistence, their lipo-philicity and their bioconcentration potential. Human milk, serum, and adipose tissues have been used successfully to monitor body burdens of organohalogen chemicals, and surveys of targeted populations with consistent protocols have enabled researchers to examine trends and to compare groups. Downward trends in dioxin body burdens have been shown in Sweden, The Netherlands, and Germany as being consistent with control measures, while upward trends in PBDEs were shown in Sweden, reflecting the introduction of these new industrial chemicals. Here, we present the first systematically collected data on persistent halogenated contaminants from California, USA. JF - Environmental Science and Pollution Research International AU - Xenaki-Petreas, M AD - Hazardous Materials Laboratory, Department of Toxic Substances Control, Cal/EPA, 2151 Berkeley Way, Berkeley CA 94704, USA, mpetreas@dtsc.ca.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 103 EP - 104 VL - 9 SN - 0944-1344, 0944-1344 KW - Pollution Abstracts; Environment Abstracts KW - Food chains KW - Breast milk KW - adipose tissues KW - Dioxins KW - Polybrominated diphenyl ethers KW - spatial distribution KW - Biota KW - body burden KW - USA, California KW - Netherlands KW - PCB compounds KW - PCDD KW - Residues KW - persistent organic pollutants KW - Furans KW - polybrominated diphenyl ethers KW - Bioaccumulation KW - Pesticides KW - Fire retardants KW - Germany KW - Sweden KW - P 6000:TOXICOLOGY AND HEALTH KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20257023?accountid=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+and+Pollution+Research+International&rft.atitle=Temporal+and+Spatial+Trends+in+Persistent+Organic+Pollutants&rft.au=Xenaki-Petreas%2C+M&rft.aulast=Xenaki-Petreas&rft.aufirst=M&rft.date=2002-01-01&rft.volume=9&rft.issue=&rft.spage=103&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 - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Food chains; Residues; persistent organic pollutants; adipose tissues; Breast milk; Furans; Dioxins; Polybrominated diphenyl ethers; spatial distribution; Biota; polybrominated diphenyl ethers; Bioaccumulation; Pesticides; body burden; Fire retardants; PCB compounds; PCDD; USA, California; Netherlands; Germany; Sweden ER - TY - JOUR T1 - Determination of Transformation Rates of Chiral Pesticides and PCBs in Soil and Sediment Microcosms AN - 20240092; 8803570 AB - Goal and Scope. Risk Based Corrective Action (RBCA) has gained widespread acceptance as a favorable approach to remediating contaminated sites. The use of RBCA methods often requires computer-based modeling to assess the fate and transport of hazardous contaminants in subsurface environments, and accurate modeling results require input of realistic transformation rates of the contaminants of concern. Unfortunately, relatively few microbial transformation rate studies have been conducted using natural soils or sediments, and have instead focused more on degradation of contaminants by pure microbial cultures. The purpose of our research was to compare degradation rates of selected pesticides and PCBs under different natural environmental conditions where the indigenous microbial population controlled degradation. Chiral contaminants were examined in this study to gain a better understanding of enantioselective transformation reactions. JF - Environmental Science and Pollution Research International AU - O'Niell, W L AU - Jones, W J AU - Whittemore, AD AU - Avants, J K AD - National Research Council, Athens, GA, 30605, USA, oniell.walter@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 238 EP - 239 VL - 9 SN - 0944-1344, 0944-1344 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Environment Abstracts KW - Transformation KW - Degradation KW - Pollution dispersion KW - Soil KW - Microcosms KW - PCB compounds KW - PCB KW - Sediment pollution KW - Pollution research KW - Sediments KW - microcosms KW - polychlorinated biphenyls KW - Enantiomers KW - Pesticides KW - Contaminants KW - Environmental conditions KW - Pollution control KW - A 01380:Plant Protection, Fungicides & Seed Treatments KW - Q5 08503:Characteristics, behavior and fate KW - Q2 09264:Sediments and sedimentation KW - P 2000:FRESHWATER POLLUTION KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20240092?accountid=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+and+Pollution+Research+International&rft.atitle=Determination+of+Transformation+Rates+of+Chiral+Pesticides+and+PCBs+in+Soil+and+Sediment+Microcosms&rft.au=O%27Niell%2C+W+L%3BJones%2C+W+J%3BWhittemore%2C+AD%3BAvants%2C+J+K&rft.aulast=O%27Niell&rft.aufirst=W&rft.date=2002-01-01&rft.volume=9&rft.issue=&rft.spage=238&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 - Sediment pollution; Pollution dispersion; Pesticides; Microcosms; Environmental conditions; Sediments; PCB; Pollution control; Soil; Transformation; polychlorinated biphenyls; Enantiomers; Pollution research; Contaminants; microcosms; Degradation; PCB compounds ER - TY - JOUR T1 - Interactions of pathogens and irritant chemicals in land-applied sewage sludges (biosolids) AN - 20239886; 6057909 AB - Fertilisation of land with processed sewage sludges, which often contain low levels of pathogens, endotoxins, and trace amounts of industrial and household chemicals, has become common practice in Western Europe, the US, and Canada. Local governments, however, are increasingly restricting or banning the practice in response to residents reporting adverse health effects. These self-reported illnesses have not been studied and methods for assessing exposures of residential communities to contaminants from processed sewage sludges need to be developed. To describe and document adverse effects reported by residents, 48 individuals at ten sites in the US and Canada were questioned about their environmental exposures and symptoms. Information was obtained on five additional cases where an outbreak of staphylococcal infections occurred near a land application site in Robesonia, PA. Medical records were reviewed in cases involving hospitalisation or other medical treatment. Since most complaints were associated with airborne contaminants, an air dispersion model was used as a means for potentially ruling out exposure to sludge as the cause of adverse effects. Affected residents lived within approximately 1 km of land application sites and generally complained of irritation (e.g., skin rashes and burning of the eyes, throat, and lungs) after exposure to winds blowing from treated fields. A prevalence of Staphylococcus aureus infections of the skin and respiratory tract was found. Approximately 1 in 4 of 54 individuals were infected, including 2 mortalities (septicaemia, pneumonia). This result was consistent with the prevalence of S. aureus infections accompanying diaper rashes in which the organism, which is commonly found in the lower human colon, tends to invade irritated or inflamed tissue. When assessing public health risks from applying sewage sludges in residential areas, potential interactions of chemical contaminants with low levels of pathogens should be considered. An increased risk of infection may occur when allergic and non-allergic reactions to endotoxins and other chemical components irritate skin and mucus membranes and thereby compromise normal barriers to infection. JF - BMC Public Health AU - Lewis, David L AU - Gattie, David K AU - Novak, Marc E AU - Sanchez, Susan AU - Pumphrey, Charles AD - US Environmental Protection Agency, National Exposure Research Laboratory, Athens, GA, USA, LewisDaveL@aol.com Y1 - 2002 PY - 2002 DA - 2002 PB - BioMed Central Ltd., Middlesex House 34-42 Cleveland Street London W1T 4LB UK, [mailto:info@biomedcentral.com], [URL:http://www.biomedcentral.com] VL - 2 KW - Microbiology Abstracts B: Bacteriology; Pollution Abstracts; Biotechnology and Bioengineering Abstracts; Health & Safety Science Abstracts KW - Endotoxins KW - Pharynx KW - Sewage sludge KW - Sludges KW - Europe KW - Mucus KW - Infection KW - Land application KW - Public health KW - Models KW - Exanthema KW - Hypersensitivity KW - Fertilization KW - Colon KW - infection KW - Diaper rash KW - Staphylococcus aureus KW - Wind KW - Respiratory tract KW - Mortality KW - Skin KW - medical records KW - Pathogens KW - Irritation KW - Inflammation KW - USA KW - Canada KW - Sewage KW - Lung KW - Reviews KW - biosolids KW - Outbreaks KW - Burning KW - Contaminants KW - Pneumonia KW - Side effects KW - W 30950:Waste Treatment & Pollution Clean-up KW - J 02400:Human Diseases 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/20239886?accountid=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=BMC+Public+Health&rft.atitle=Interactions+of+pathogens+and+irritant+chemicals+in+land-applied+sewage+sludges+%28biosolids%29&rft.au=Lewis%2C+David+L%3BGattie%2C+David+K%3BNovak%2C+Marc+E%3BSanchez%2C+Susan%3BPumphrey%2C+Charles&rft.aulast=Lewis&rft.aufirst=David&rft.date=2002-01-01&rft.volume=2&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=BMC+Public+Health&rft.issn=1471-2458&rft_id=info:doi/10.1186%2F1471-2458-2-11 L2 - http://www.biomedcentral.com/content/pdf/1471-2458-2-11.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Endotoxins; Pharynx; Sludges; Mucus; Infection; Models; Public health; Exanthema; Fertilization; Hypersensitivity; Colon; Diaper rash; Wind; Respiratory tract; Mortality; Skin; medical records; Pathogens; Irritation; Inflammation; Sewage; Lung; Reviews; biosolids; Burning; Contaminants; Side effects; Pneumonia; Sewage sludge; infection; Outbreaks; Land application; Staphylococcus aureus; USA; Canada; Europe DO - http://dx.doi.org/10.1186/1471-2458-2-11 ER - TY - JOUR T1 - Forest ecosystem recovery in the southeast US: soil ecology as an essential component of ecosystem management AN - 19931910; 5313489 AB - The forestry industry in the southeastern United States relies upon soils that are highly eroded and depleted of their original organic matter and nutrient content. Pro-active land management can ensure continued and possibly increased production and revenue through the management and recovery of the soil resource. With an emphasis on loblolly pine (Pinus taeda L.) forests, this review integrates land-use history, pine ecology, silviculture, soil ecological research and the implications for forest management into a single discussion. Promoting soil recovery involves knowledge of ecosystem history and disturbance as well as nutrient cycling mechanisms, pools, fluxes and soil forming factors. Research on the rhizosphere is an area that is needed. Recovery of regional soils may confer benefits of drought and disease resistance. The goal of sustainable forestry is compatible with soil recovery; however, the technology and practices of modern forestry deserve thorough evaluation. Emphasis on the continued production of commodities, the agricultural model, is much different from managing for the functioning of healthy forest ecosystems. Many of the practices and outcomes of intensive forest management, including short rotations, harrowing, subsoiling, and burning or removal of logging slash, seem to be at odds with the goal of soil recovery. Best management practices that foster soil recovery include less intensive stand utilization and reduced soil disturbance. Stem-only harvest and longer rotations permit a recovery of soil biodiversity and an accrual of detritus and soil organic matter. Windrowing and similar techniques have dramatic and lasting effects on soil development. No-tillage agriculture as a model for pine plantations is discussed. JF - Forest Ecology and Management AU - Johnston, J M AU - Crossley, DA AD - US Environmental Protection Agency, Office of Research and Development, Ecosystems Research Division, 30605 Athens, GA USA Y1 - 2002/01/01/ PY - 2002 DA - 2002 Jan 01 SP - 187 EP - 203 PB - Elsevier Science VL - 155 IS - 1-3 SN - 0378-1127, 0378-1127 KW - Loblolly pine KW - Sustainability Science Abstracts; Ecology Abstracts; Human Population KW - Forest management KW - Silviculture KW - Nutrient content KW - Reviews KW - Organic matter KW - Pinus taeda KW - Ecosystem management KW - Soil conservation KW - USA, Southeast KW - Forest practices KW - Land use KW - M1 200:Human Population-Biosphere Interactions KW - D 04700:Management KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19931910?accountid=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=Forest+Ecology+and+Management&rft.atitle=Forest+ecosystem+recovery+in+the+southeast+US%3A+soil+ecology+as+an+essential+component+of+ecosystem+management&rft.au=Johnston%2C+J+M%3BCrossley%2C+DA&rft.aulast=Johnston&rft.aufirst=J&rft.date=2002-01-01&rft.volume=155&rft.issue=1-3&rft.spage=187&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-03-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Nutrient content; Silviculture; Forest management; Organic matter; Reviews; Ecosystem management; Soil conservation; Forest practices; Land use; Pinus taeda; USA, Southeast ER - TY - JOUR T1 - Inhibition of sulfate-reducing bacteria by metal sulfide formation in bioremediation of acid mine drainage AN - 19928827; 5432081 AB - Acid mine drainage (AMD) containing high concentrations of sulfate and heavy metal ions can be treated by biological sulfate reduction. It has been reported that the effect of heavy metals on sulfate-reducing bacteria (SRB) can be stimulatory at lower concentrations and toxic/inhibitory at higher concentrations. The quantification of the toxic/inhibitory effect of dissolved heavy metals is critical for the design and operation of an effective AMD bioremediation process. Serum bottle and batch reactor studies on metal toxicity to SRB indicate that insoluble metal sulfides can inhibit the SRB activity as well. The mechanism of inhibition is postulated to be external to the bacterial cell. The experimental data indicate that the metal sulfides formed due to the reaction between the dissolved metal and biogenic sulfide act as barriers preventing the access of the reactants (sulfate, organic matter) to the necessary enzymes. Scanning electron micrographs of the SRB cultures exposed to copper and zinc provide supporting evidence for this hypothesis. The SRB cultures retained their ability to effect sulfate reduction indicating that the metal sulfides were not lethally toxic to the SRB. This phenomenon of metal sulfide inhibition of the SRB has to be taken into account while designing a sulfate-reducing bioreator, and subsequently an efficient biotreatment strategy for AMD. Any metal sulfide formed in the bioreactor needs to be removed immediately from the system to maintain the efficiency of the process of sulfate reduction. JF - Environmental Toxicology AU - Utgikar, V P AU - Harmon, S M AU - Chaudhary, N AU - Tabak, H H AU - Govind, R AU - Haines, J R AD - National Risk Management Research Laboratory, U.S. Environmental Protection Agency, 26 W. Martin Luther King, Jr., Drive, Cincinnati, OH 45268, USA, tabak.henry@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 40 EP - 48 VL - 17 IS - 1 SN - 1520-4081, 1520-4081 KW - Toxicology Abstracts; Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts; Water Resources Abstracts; Aqualine Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts KW - Acid Mine Drainage KW - Sulfide KW - Bioremediation KW - Chemical Reduction KW - P 5000:LAND POLLUTION KW - SW 3070:Water quality control KW - A 01016:Microbial degradation KW - X 24360:Metals KW - AQ 00002:Water Quality KW - W 30965:Miscellaneous, Reviews KW - W4 210:Bioremediation, Bioreactors & BioCycling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19928827?accountid=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=Inhibition+of+sulfate-reducing+bacteria+by+metal+sulfide+formation+in+bioremediation+of+acid+mine+drainage&rft.au=Utgikar%2C+V+P%3BHarmon%2C+S+M%3BChaudhary%2C+N%3BTabak%2C+H+H%3BGovind%2C+R%3BHaines%2C+J+R&rft.aulast=Utgikar&rft.aufirst=V&rft.date=2002-01-01&rft.volume=17&rft.issue=1&rft.spage=40&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology&rft.issn=15204081&rft_id=info:doi/10.1002%2Ftox.10031 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-11-01 N1 - Last updated - 2014-02-11 N1 - SubjectsTermNotLitGenreText - Sulfide; Bioremediation; Chemical Reduction DO - http://dx.doi.org/10.1002/tox.10031 ER - TY - JOUR T1 - Place-Based Decision Support Systems: A Bridge Between Democracy and Sustainability AN - 19927777; 5417073 AB - The management of places -- whether National Parks and Forests, cities and towns, or small communities and watersheds -- is becoming more complicated and more contentious. There is an increase in concern with both the aesthetic and functional aspects of our environments, more people are living in or utilizing any one place, and the demand to participate in decisions is growing. We want our places to retain those features that we value (many of them environmental), while improving in other, mostly social and economic ways. At the same time, access to the scientific data, information, expertise, and analytical tools that should help us plan for sustainable development has grown enormously. Yet, there is still considerable frustration in the search for science-based, participatory decision making. Two reasons for this frustration are the different perspectives of science and decision-making (whether by elected leaders or stakeholders), and the quantity of information available. It is suggested that the emerging technology of place-based decision support systems has the potential to help with both. JF - Human Ecology Review AU - Gunther, T AD - Senior Policy Advisor, Office of Water and Science, U.S. Department of the Interior Y1 - 2002 PY - 2002 DA - 2002 SP - 64 EP - 66 VL - 9 IS - 1 SN - 1074-4827, 1074-4827 KW - Sustainability Science Abstracts; Human Population KW - Decision making KW - Socio-economic aspects KW - National parks KW - Forests KW - Sustainable development KW - Environment management KW - M1 320:Environmental & Natural Resource Development KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19927777?accountid=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=Human+Ecology+Review&rft.atitle=Place-Based+Decision+Support+Systems%3A+A+Bridge+Between+Democracy+and+Sustainability&rft.au=Gunther%2C+T&rft.aulast=Gunther&rft.aufirst=T&rft.date=2002-01-01&rft.volume=9&rft.issue=1&rft.spage=64&rft.isbn=&rft.btitle=&rft.title=Human+Ecology+Review&rft.issn=10744827&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-08-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Socio-economic aspects; Decision making; National parks; Sustainable development; Forests; Environment management ER - TY - JOUR T1 - Extrapolation in Human Health and Ecological Risk Assessments: Proceedings of a Symposium AN - 19919953; 5355353 AB - A symposium was conducted in April 1998 by the U.S. Environmental Protection Agency's National Health and Environmental Effects Research Laboratory (NHEERL) to explore issues of extrapolation in human health and ecological risk assessments. Over the course of three and one half days, leading health and ecology experts presented and discussed research methods and approaches for extrapolating data among taxa and across levels of biological organization, through time, and across spatial scales. The intended result of this symposium was enhanced interaction among a diverse array of scientists, policymakers, and risk assessors to promote identification of approaches for reducing the uncertainties of extrapolation in risk assessment. JF - Human and Ecological Risk Assessment AU - Munns, WR Jr AU - MacPhail, R AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, 27 Tarzwell Drive, Narragansett, RI 02882, USA, munns.wayne@epa.gov Y1 - 2002/01// PY - 2002 DA - Jan 2002 SP - 1 EP - 5 VL - 8 IS - 1 SN - 1080-7039, 1080-7039 KW - ecology KW - extrapolation KW - man KW - Sustainability Science Abstracts; Human Population; Toxicology Abstracts KW - Risk assessment KW - USA KW - Ecosystems KW - Conferences KW - Health KW - Population-environment relations KW - Public health KW - M3 1010:Issues in Sustainable Development KW - M1 300:Public Health and Risk Factors KW - X 24270:Proceedings UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19919953?accountid=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=Human+and+Ecological+Risk+Assessment&rft.atitle=Extrapolation+in+Human+Health+and+Ecological+Risk+Assessments%3A+Proceedings+of+a+Symposium&rft.au=Munns%2C+WR+Jr%3BMacPhail%2C+R&rft.aulast=Munns&rft.aufirst=WR&rft.date=2002-01-01&rft.volume=8&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Human+and+Ecological+Risk+Assessment&rft.issn=10807039&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-05-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Risk assessment; Conferences; Ecosystems; Health; Population-environment relations; Public health; USA ER - TY - JOUR T1 - Changes in anthropogenic impervious surfaces, precipitation and daily streamflow discharge: a historical perspective in a Mid-Atlantic subwatershed AN - 18907616; 5556649 AB - Aerial photography provides a historical vehicle for determining long-term urban landscape change and, with concurrent daily streamflow and precipitation records, allows the historical relationship of anthropogenic impervious surfaces and streamflow to be explored. Anthropogenic impervious surface area in the upper Accotink Creek subwatershed (near Annandale, Virginia, USA) was mapped from six dates of rectified historical aerial photography ranging from 1949 to 1994. Results show that anthropogenic impervious surface area has grown from approximately 3% in 1949 to 33% in 1994. Coincident to this period, analysis of historical mean daily streamflow shows a statistically significant increase in the streamflow discharge response (per meter of precipitation) associated with "normal" and "extreme" daily precipitation levels. Significant changes were also observed in the frequency of daily streamflow discharge at given volumes above and below the historical daily mean. Simultaneously, the historical magnitude, frequency and pattern of precipitation values greater than or equal to 0 mm, greater than or equal to 6.0 mm and greater than or equal to 35.0 mm show either no statistically significant change or influence on streamflow. Historical changes in streamflow in this basin appear to be related to increases in anthropogenic impervious surface cover. Historical aerial photography is a viable tool for revealing long-term landscape and ecosystem relationships, and allows landscape investigations to extend beyond the temporal and spatial constraints of historical satellite remote sensing data. JF - Landscape Ecology AU - Jennings, D B AU - Jarnagin, ST AD - US Environmental Protection Agency, 12201 Sunrise Valley Dr., Reston, VA 20192, USA, jennings.david@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 471 EP - 489 VL - 17 IS - 5 SN - 0921-2973, 0921-2973 KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Ecology Abstracts KW - D 04695:Urban environments KW - SW 0835:Streamflow and runoff KW - M2 556.16:Runoff (556.16) KW - M2 551.577:General Precipitation (551.577) KW - Q2 02171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18907616?accountid=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=Changes+in+anthropogenic+impervious+surfaces%2C+precipitation+and+daily+streamflow+discharge%3A+a+historical+perspective+in+a+Mid-Atlantic+subwatershed&rft.au=Jennings%2C+D+B%3BJarnagin%2C+ST&rft.aulast=Jennings&rft.aufirst=D&rft.date=2002-01-01&rft.volume=17&rft.issue=5&rft.spage=471&rft.isbn=&rft.btitle=&rft.title=Landscape+Ecology&rft.issn=09212973&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 - Can We Protect Everybody from Drinking Water Contaminants? AN - 18871188; 5717433 AB - Dozens of chemicals, both natural and manmade, are often found in drinking water. Some, such as the natural contaminants uranium and arsenic, are well-known toxicants with a large toxicology database. Other chemicals, such as methyl tertiary-butyl ether (MTBE) from leaking fuel tanks, we learn about as we go along. For still others, such as the alkyl benzenes, there are very little available data, and few prospects of obtaining more. In some cases, chemicals are purposely added to drinking water for beneficial purposes (e.g., chlorine, fluoride, alum), which may cause a countervailing hazard. Removing all potentially toxic chemicals from the water is virtually impossible and is precluded for beneficial uses and for economic reasons. Determination of safe levels of chemicals in drinking water merges the available toxicity data with exposure and human effect assumptions into detailed hazard assessments. This process should incorporate as much conservatism as is needed to allow for uncertainty in the toxicity and exposure estimates. Possible sensitive subpopulations such as unborn children, infants, the elderly, and those with common diseases such as impaired kidney function must also be considered. However, the range of sensitivity and the variability of toxicity and exposure parameters can never be fully documented. In addition, the validity of the low-dose extrapolations, and whether the toxic effect found in animals occurs at all in humans, is never clear. This publication discusses how these competing needs and uncertainties intersect in the development of Public Health Goals for uranium, fluoride, arsenic, perchlorate, and other highly debated chemicals. JF - International Journal of Toxicology AU - Howd, R A AD - Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, 1515 Clay Street, 16th floor, Oakland, CA 94612, USA, bhowd@oehha.ca.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 389 EP - 395 VL - 21 IS - 5 SN - 1091-5818, 1091-5818 KW - man KW - perchlorate KW - protection KW - Water Resources Abstracts; Pollution Abstracts; Health & Safety Science Abstracts; Toxicology Abstracts KW - Chemicals KW - Arsenic KW - Contamination KW - Toxicants KW - Toxicity KW - Xenobiotics KW - Public health KW - Fluoride KW - Uranium KW - Perchloric acid KW - Drinking water KW - Contaminants KW - X 24120:Food, additives & contaminants KW - H 14000:Toxicology 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/18871188?accountid=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=Can+We+Protect+Everybody+from+Drinking+Water+Contaminants%3F&rft.au=Howd%2C+R+A&rft.aulast=Howd&rft.aufirst=R&rft.date=2002-01-01&rft.volume=21&rft.issue=5&rft.spage=389&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Toxicology&rft.issn=10915818&rft_id=info:doi/10.1080%2F10915810290096603 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Xenobiotics; Perchloric acid; Contaminants; Drinking water; Public health; Chemicals; Arsenic; Toxicants; Contamination; Fluoride; Uranium; Toxicity DO - http://dx.doi.org/10.1080/10915810290096603 ER - TY - JOUR T1 - Histopathological Evidence of Regeneration following Hepatotoxic Effects of the Cyanotoxin Microcystin-LR in the Hardhead Catfish and Gulf Killifish AN - 18706700; 5597652 AB - The cyanobacterial toxin microcystin-LR (MC-LR) causes liver damage in several freshwater fish species. In the present study, two estuarine species, hardhead catfish Arius felis and gulf killifish Fundulus grandis, were injected intraperitoneally with MC-LR at 45-300 mu g/kg and their livers examined histopathologically for up to 23 d postinjection (PI) in the catfish and 5 d PI in the killifish. The livers from both species exhibited extensive, diffuse hepatocellular necrosis by 6 h PI. The necrosis persisted, and by day 2 large numbers of basophilic cells had emerged throughout the liver parenchyma. These cells occurred individually or in small clusters. By 72 h, the basophilic cells appeared to be highly proliferative with numerous mitotic figures and were arranged in cords and tubules similar to mature hepatic parenchyma. Regeneration of the liver parenchyma was noted in gulf killifish at 5 d PI, as tracts of basophilic cells were still evident. In hardhead catfish, there were no signs of necrosis or proliferating basophilic cells by 9 d PI, and the hepatic parenchyma appeared normal except for the vacuolation of many hepatocytes and some areas of hepatic megalocytosis. The degenerative changes in the two species studied were similar to but more pronounced than those observed in freshwater fish species exposed to MC-LR. Evidence of regeneration from the hepatotoxic effects of MC-LR suggests that the toxin can be used to study regenerative processes in fish livers. JF - Journal of Aquatic Animal Health AU - Fournie, J W AU - Courtney, LA AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Gulf Ecology Division, 1 Sabine Island Drive, Gulf Breeze, Florida 32561, USA Y1 - 2002 PY - 2002 DA - 2002 SP - 273 EP - 280 VL - 14 IS - 4 SN - 0899-7659, 0899-7659 KW - Gulf killifish KW - Hardhead catfish KW - microcystins KW - Oceanic Abstracts; Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Injuries KW - Biological poisons KW - Test organisms KW - Brackish KW - Histopathology KW - Fundulus grandis KW - Toxins KW - Regeneration KW - Liver KW - Microcystin-LR KW - Arius felis KW - Cyanophyta KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - X 24172:Plants KW - Q1 08346:Physiology, biochemistry, biophysics KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18706700?accountid=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+Animal+Health&rft.atitle=Histopathological+Evidence+of+Regeneration+following+Hepatotoxic+Effects+of+the+Cyanotoxin+Microcystin-LR+in+the+Hardhead+Catfish+and+Gulf+Killifish&rft.au=Fournie%2C+J+W%3BCourtney%2C+LA&rft.aulast=Fournie&rft.aufirst=J&rft.date=2002-01-01&rft.volume=14&rft.issue=4&rft.spage=273&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aquatic+Animal+Health&rft.issn=08997659&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Injuries; Biological poisons; Test organisms; Regeneration; Liver; Histopathology; Microcystin-LR; Toxins; Fundulus grandis; Arius felis; Cyanophyta; Brackish ER - TY - JOUR T1 - NTP Center for the Evaluation of Risks to Human Reproduction: Phthalates expert panel report on the reproductive and developmental toxicity of butyl benzyl phthalate AN - 18648001; 5549491 JF - Reproductive Toxicology AU - Kavlock, R AU - Boekelheide, K AU - Chapin, R AU - Cunningham, M AU - Faustman, E AU - Foster, P AU - Golub, M AU - Henderson, R AU - Hinberg, I AU - Little, R AU - Seed, J AU - Shea, K AD - National Health and Environmental Effects Research Laboratory, USEPA, Research Triangle Park, NC, USA, jmoore@sciences.com Y1 - 2002 PY - 2002 DA - 2002 SP - 453 EP - 487 VL - 16 IS - 5 SN - 0890-6238, 0890-6238 KW - butyl benzylphthalate KW - man KW - Toxicology Abstracts KW - X 24250:Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18648001?accountid=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=NTP+Center+for+the+Evaluation+of+Risks+to+Human+Reproduction%3A+Phthalates+expert+panel+report+on+the+reproductive+and+developmental+toxicity+of+butyl+benzyl+phthalate&rft.au=Kavlock%2C+R%3BBoekelheide%2C+K%3BChapin%2C+R%3BCunningham%2C+M%3BFaustman%2C+E%3BFoster%2C+P%3BGolub%2C+M%3BHenderson%2C+R%3BHinberg%2C+I%3BLittle%2C+R%3BSeed%2C+J%3BShea%2C+K&rft.aulast=Kavlock&rft.aufirst=R&rft.date=2002-01-01&rft.volume=16&rft.issue=5&rft.spage=453&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 ER - TY - JOUR T1 - Challenges in EPA's coastal and ocean programs. AN - 18639585; 5549043 AB - While the Environmental Protection Agency (EPA) is faced with a broad array of environmental issues, it is abundantly clear that protection of ocean and coastal resources is of great importance, because these resources are both invaluable and at risk. U.S. ocean and coastal habitats support some of the most valuable and diverse biological resources on the planet. These habitats support 66 percent of all U.S. commercial and recreational fish and shellfish and 45 percent of all protected species such as turtles and marine mammals. They also include 17,000 square kilometers of coral reefs. In addition, one out of every six jobs in the U.S. is marine-related, with $40 billion in food products taken from U.S. ocean waters annually and 180 million people visiting U.S. coasts each year, generating $600 billion in annual revenue. These invaluable resources are at risk from a range of pollution threats including those that necessitate the issuance of fish advisories for 60 percent of U.S. coastal waters, those that put at risk the health of 60 percent of the world's coral reefs and the total destruction of 10 percent of those reefs and those that necessitate the issuance of annual warnings about or closing of 40 percent of surveyed beaches. Pollution has also created the Gulf of Mexico's hypoxic zone, which covers 6,000 to 7,000 square miles. This is the largest zone of anthropogenic coastal hypoxia in the Western Hemisphere. This article briefly reviews some of EPA's ocean and coastal actions over the past year and highlights the issues at the forefront of efforts in the future. JF - Sea Technology AU - Schwartz, SE AD - Ocean and Coastal Protection Division, Environmental Protection Agency Washington, DC USA Y1 - 2002///0, PY - 2002 DA - 0, 2002 SP - 33 EP - 37 VL - 43 IS - 3 SN - 0093-3651, 0093-3651 KW - Environmental Protection Agency KW - monitoring KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 1: Biological Sciences & Living Resources KW - Marine KW - Anthropogenic factors KW - Brackish KW - Coastal zone management KW - USA KW - Coastal zone KW - Marine resources KW - Marine pollution KW - Marine environment KW - Fisheries KW - Economics KW - Legislation KW - Pollution control KW - Q5 08505:Prevention and control KW - Q1 08121:Law, policy, economics and social sciences KW - Q2 09124:Coastal zone management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18639585?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocialservices&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Community+%26+Applied+Social+Psychology&rft.atitle=The+%27Armistead%27+Project%3A+An+Exploration+of+Gay+Men%2C+Sexual+Practices%2C+Community+Health+Promotion+and+Issues+of+Empowerment&rft.au=Crossley%2C+Michele+L&rft.aulast=Crossley&rft.aufirst=Michele&rft.date=2001-03-01&rft.volume=11&rft.issue=2&rft.spage=111&rft.isbn=&rft.btitle=&rft.title=Journal+of+Community+%26+Applied+Social+Psychology&rft.issn=10529284&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-12-21 N1 - SubjectsTermNotLitGenreText - Marine resources; Coastal zone; Marine pollution; Marine environment; Economics; Fisheries; Anthropogenic factors; Legislation; Coastal zone management; Pollution control; USA; Brackish; Marine ER - TY - JOUR T1 - NTP Center for the Evaluation of Risks to Human Reproduction: Phthalates expert panel report on the reproductive and developmental toxicity of di(2-ethylhexyl) phthalate AN - 18637442; 5549493 JF - Reproductive Toxicology AU - Kavlock, R AU - Boekelheide, K AU - Chapin, R AU - Cunningham, M AU - Faustman, E AU - Foster, P AU - Golub, M AU - Henderson, R AU - Hinberg, I AU - Little, R AU - Seed, J AU - Shea, K AD - National Health and Environmental Effects Research Laboratory, USEPA, Research Triangle Park, NC, USA, jmoore@sciences.com Y1 - 2002 PY - 2002 DA - 2002 SP - 529 EP - 653 VL - 16 IS - 5 SN - 0890-6238, 0890-6238 KW - bis(2-ethylhexyl) phthalate KW - man KW - Health & Safety Science Abstracts; Toxicology Abstracts KW - H 14000:Toxicology KW - X 24250:Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18637442?accountid=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=NTP+Center+for+the+Evaluation+of+Risks+to+Human+Reproduction%3A+Phthalates+expert+panel+report+on+the+reproductive+and+developmental+toxicity+of+di%282-ethylhexyl%29+phthalate&rft.au=Kavlock%2C+R%3BBoekelheide%2C+K%3BChapin%2C+R%3BCunningham%2C+M%3BFaustman%2C+E%3BFoster%2C+P%3BGolub%2C+M%3BHenderson%2C+R%3BHinberg%2C+I%3BLittle%2C+R%3BSeed%2C+J%3BShea%2C+K&rft.aulast=Kavlock&rft.aufirst=R&rft.date=2002-01-01&rft.volume=16&rft.issue=5&rft.spage=529&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 ER - TY - JOUR T1 - Monthly and annual bias in weekly (NADP/NTN) versus daily (AIRMoN) precipitation chemistry data in the Eastern USA AN - 18619803; 5525597 AB - Previous comparisons of the data from the National Atmospheric Deposition Program, National Trends Network (NTN) against collocated event sampled data and daily sampled data suggest a substantial bias in the concentration of ammonium [NH sub(4) super(+)] and concentrations of several base cations, while the comparability of other ion concentrations ranges among the studies. Eight years of collocated data from five NTN and Atmospheric Integrated Research and Monitoring Network (AIRMoN) sites are compared here. Unlike previous analyses, the data from these two data sets were analyzed in the same laboratory using the same analytical methods; therefore, factors that influence concentration differences can be isolated to sampling frequency and sample preservation techniques. For comparison, the relative biases for these data have been calculated using both median value and volume-weighted mean concentrations, following two different approaches in the literature. The results suggest a relative bias of about 10% in [NH sub(4) super(+)] (NTN less than AIRMoN), which is smaller than previous estimates that included the influence of inter-laboratory comparisons. The annual relative bias of [H super(+)] increases over the analysis period, which results in a larger total relative bias for [H super(+)] than found in a previous analysis of AIRMoN and NTN data. When comparing NTN and AIRMoN data on monthly time scales, strong seasonal variations are evident in the relative bias for [H super(+)], [NH sub(4) super(+)], and [SO sub(4) super(2-)]. Large biases in [SO sub(4) super(2-)] (NTN greater than AIRMoN) on monthly times scales have not been detected in previous analyses where data for all seasons were considered together. JF - Atmospheric Environment AU - Gilliland, AB AU - Butler, T J AU - Likens, GE AD - USEPA Office of Research and Development, NERL/AMD/MSAB, Mail Drop E243-04, RTP, NC 27711, USA, alice.gilliland@noaa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 5197 EP - 5206 VL - 36 IS - 33 SN - 1352-2310, 1352-2310 KW - Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Ammonium in precipitation KW - Precipitation composition trends KW - USA, East KW - Ion concentration variations KW - Precipitation chemistry KW - Seasonal variations KW - M2 551.577.13:Chemical properties of precipitation. Acid precipitation (551.577.13) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18619803?accountid=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=Atmospheric+Environment&rft.atitle=Monthly+and+annual+bias+in+weekly+%28NADP%2FNTN%29+versus+daily+%28AIRMoN%29+precipitation+chemistry+data+in+the+Eastern+USA&rft.au=Gilliland%2C+AB%3BButler%2C+T+J%3BLikens%2C+GE&rft.aulast=Gilliland&rft.aufirst=AB&rft.date=2002-01-01&rft.volume=36&rft.issue=33&rft.spage=5197&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Ammonium in precipitation; Precipitation composition trends; Ion concentration variations; Seasonal variations; Precipitation chemistry; USA, East ER - TY - JOUR T1 - Long-term consequences of developmental exposure to lead or polychlorinated biphenyls: Synaptic transmission and plasticity in the rodent CNS AN - 18614307; 5523907 AB - Exposure to lead (Pb) or polychlorinated biphenyls (PCBs) during early development has been associated with deficits in cognitive function in children (Pediatrics 87 (1991) 219; N. Engl. J. Med. 335 (1996) 783). These effects persist in the child long after exposure has ceased and body burdens have diminished. Despite intensive research, no consensus on the mechanisms of neurotoxicity of these chemicals has resulted. As the primary neurotoxic action of these agents is to impair cognitive ability, a number of laboratories have examined and reported on the detrimental the effects of Pb or PCBs on hippocampal synaptic transmission and long-term potentiation (LTP) in animals exposed during the perinatal period. Use-dependent synaptic plasticity, of which hippocampal LTP is the primary model system, is a fundamental property of neuronal function. In forebrain structures such as amygdala and hippocampus, LTP and related processes are purported to represent a physiological substrate for memory. During brain ontogeny, this type of plasticity guides the establishment and maintenance of synaptic connections in cortical structures based on sensory input. We postulate that the actions of PCBs and Pb in the developing nervous system perturb activity-dependent plasticity and promote organizational changes in brain. Aberrant connectivity derived from perturbations in activity-dependent plasticity during development may manifest as impaired LTP and cognitive ability in the adult organism. JF - Environmental Toxicology and Pharmacology AU - Gilbert, ME AU - Lasley, S M AD - Neurotoxicology Division (MD 74B), National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA, gilbert.mary@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 105 EP - 117 VL - 12 IS - 2 SN - 1382-6689, 1382-6689 KW - Toxicology Abstracts KW - X 24162:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18614307?accountid=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+Pharmacology&rft.atitle=Long-term+consequences+of+developmental+exposure+to+lead+or+polychlorinated+biphenyls%3A+Synaptic+transmission+and+plasticity+in+the+rodent+CNS&rft.au=Gilbert%2C+ME%3BLasley%2C+S+M&rft.aulast=Gilbert&rft.aufirst=ME&rft.date=2002-01-01&rft.volume=12&rft.issue=2&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Pharmacology&rft.issn=13826689&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special Issue: Human and Animal Neurotoxicology from Exposure to Great Lakes Pollutants. N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Exposure Assessment to Dioxins from the Use of Tampons and Diapers AN - 18550680; 5515041 AB - Over the past several years there has been concern over exposure to dioxins through the use of tampons and other sanitary products. This article describes attempts to estimate dioxin exposures from tampons and infant diapers; we then compare exposure estimates to dietary dioxin exposures. We analyzed four brands of tampons and four brands of infant diapers obtained from commercial establishments in San Francisco, California, for dioxin concentrations. We estimated exposures to dioxins on the basis of a screening level analysis that assumed all dioxins present were completely absorbed. We also estimated exposures by using a more refined analysis that incorporates partition coefficients to estimate bioavailability. None of the products contained 2,3,7,8-tetrachlorodibenzo-p-dioxin, the most potent dioxin, although other dioxins were present at detectable concentrations in all samples. We observed minimal differences in the concentrations of dioxins between 100% cotton and cotton/pulp products. The refined exposure analysis indicates that exposures to dioxins from tampons are approximately 13,000-240,000 times less than dietary exposures. The refined exposure analysis showed that exposure to dioxins from the diet is more than 30,000-2,200,000 times the exposure through diapers in nursing infants. Although dioxins are found in trace amounts in both cotton and pulp sanitary products, exposure to dioxins through tampons and diapers does not significantly contribute to dioxin exposures in the United States. JF - Environmental Health Perspectives AU - DeVito, MJ AU - Schecter, A AD - U.S. EPA, NHEERL (MD-74), 86 T.W. Alexander Drive, Research Triangle Park, NC 27711 USA, devito.mike@epa.gov Y1 - 2002/01// PY - 2002 DA - Jan 2002 SP - 23 EP - 28 VL - 110 IS - 1 SN - 0091-6765, 0091-6765 KW - diapers KW - exposure KW - tampons KW - Toxicology Abstracts; Health & Safety Science Abstracts; Risk Abstracts KW - X 24140:Cosmetics, toiletries & household products KW - R2 23060:Medical and environmental health KW - H 12000:Epidemiology and Public Health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18550680?accountid=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=Health+Promotion+Journal+of+Australia&rft.atitle=Well+Men%27s+Checkups+--+A+Program+of+the+East+Arnhem+Health+Promotion+Unit&rft.au=Smith%2C+Gregory%3BKing%2C+Richard&rft.aulast=Smith&rft.aufirst=Gregory&rft.date=1998-04-01&rft.volume=8&rft.issue=1&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Health+Promotion+Journal+of+Australia&rft.issn=10361073&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 - Benthic microbial respiration in Appalachian Mountain, Piedmont, and Coastal Plains streams of the eastern USA. AN - 18540294; 5512413 AB - Benthic microbial respiration was measured in 214 streams in the Appalachian Mountain, Piedmont, and Coastal Plains regions of the eastern United States in summer 1997 and 1998. Respiration was measured as both O sub(2) consumption in sealed microcosms and as dehydrogenase activity (DHA) of the sediments contained within the microcosms. Benthic microbial respiration in streams of the eastern U.S., as O sub(2) consumption, was 0.37 plus or minus 0.03 mg O sub(2) m super(-2) day super(-1). Respiration as DHA averaged 1.21 plus or minus 0.08 mg O sub(2) m super(-2) day super(-1). No significant differences in O sub(2) consumption or DHA were found among geographical provinces or stream size classes, nor among catchment basins for O sub(2) consumption, but DHA was significantly higher in the other Atlantic (non-Chesapeake Bay) catchment basins. Canonical correlation analyses generated two environmental axes. The stronger canonical axis (W sub(1)) represented a chemical disturbance gradient that was negatively correlated with signatures of anthropogenic impacts (ANC, Cl super()-, pH, SO sub(4) super(2-)), and positively correlated with riparian canopy cover and stream water dissolved organic carbon concentration (DOC). A weaker canonical axis (W sub(2)) was positively correlated with pH, riparian zone agriculture, and stream depth, and negatively correlated with DOC and elevation of the stream. Oxygen consumption was significantly correlated with W sub(2) whereas DHA was significantly correlated with W sub(1). The strengths of the correlations of DHA with environmental variables, particularly those that are proven indicators of catchment disturbances and with the canonical axis, suggest that DHA is a more responsive measure of benthic microbial activity than is O sub(2) consumption. JF - Freshwater Biology AU - Hill, B H AU - Herlihy, A T AU - Kaufmann, PR AD - National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency 6201 Congdon Boulevard, Duluth, MN 55804 USA, hill.brian@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 185 EP - 194 VL - 47 IS - 2 SN - 0046-5070, 0046-5070 KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Freshwater KW - Q1 01206:Physiology, biochemistry, biophysics KW - Q5 01502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18540294?accountid=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=Freshwater+Biology&rft.atitle=Benthic+microbial+respiration+in+Appalachian+Mountain%2C+Piedmont%2C+and+Coastal+Plains+streams+of+the+eastern+USA.&rft.au=Hill%2C+B+H%3BHerlihy%2C+A+T%3BKaufmann%2C+PR&rft.aulast=Hill&rft.aufirst=B&rft.date=2002-01-01&rft.volume=47&rft.issue=2&rft.spage=185&rft.isbn=&rft.btitle=&rft.title=Freshwater+Biology&rft.issn=00465070&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 - Periods of vertebral column sensitivity to boric acid treatment in CD-1 mice in utero AN - 18507021; 5469366 AB - Boric acid (BA) has many uses as an industrial compound and is widely distributed in the environment. BA has been shown to produce rib agenesis, a rare effect in laboratory animals. This study was conducted to determine if there is a period of sensitivity to this unusual effect. BA (500 or 750 mg/kg) was administered p.o. to pregnant CD-1 mice once daily on gestational days (GDs) 6-10. A reduction of 13th rib length occurred at both dose levels. BA 400 mg/kg was also administered twice daily on GD 6, 7, 8, 9, or 10 or on GDs 6-8. A significant decrease in average fetal weight was observed in all treatment groups. Significant increases in the incidence of cervical ribs/ossifications resulted from treatments on GD 7 and GDs 6-8. Rib agenesis occurred with treatment on GD 8 and GDs 6-8. Reduced rib length, a decreased incidence of supernumerary ribs (SNR), and an increased incidence of fused and/or branched ribs occurred when dams were treated GDs 6-8. Doses of 750 mg/kg given twice on day 8 produced significant increases in several thoracic skeletal anomalies. Further studies of pathogenesis are necessary to determine the earliest perturbations and the processes that are affected. The sensitivity of embryos to treatment on GD 8 to rib agenesis suggests that BA is affecting early processes such as gastrulation and presomitic mesoderm formation and patterning in this area. JF - Reproductive Toxicology AU - Cherrington, J W AU - Chernoff, N AD - U.S. EPA, NHEERL, RTD, DBB, RTP, Raleigh, NC 27711, USA, jana_cherrington@hotmail.com Y1 - 2002 PY - 2002 DA - 2002 SP - 237 EP - 243 VL - 16 IS - 3 SN - 0890-6238, 0890-6238 KW - mice KW - Toxicology Abstracts KW - X 24152:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18507021?accountid=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=Periods+of+vertebral+column+sensitivity+to+boric+acid+treatment+in+CD-1+mice+in+utero&rft.au=Cherrington%2C+J+W%3BChernoff%2C+N&rft.aulast=Cherrington&rft.aufirst=J&rft.date=2002-01-01&rft.volume=25&rft.issue=1&rft.spage=185&rft.isbn=&rft.btitle=&rft.title=Health+%26+Social+Care+in+the+Community&rft.issn=09660410&rft_id=info:doi/10.1111%2Fhsc.12291 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Landscape patterns as habitat predictors: building and testing models for cavity-nesting birds in the Uinta Mountains of Utah, USA AN - 18504596; 5466662 AB - The ability to predict species occurrences quickly is often crucial for managers and conservation biologists with limited time and funds. We used measured associations with landscape patterns to build accurate predictive habitat models that were quickly and easily applied (i.e., required no additional data collection in the field to make predictions). We used classification trees (a nonparametric alternative to discriminant function analysis, logistic regression, and other generalized linear models) to model nesting habitat of red-naped sapsuckers (Sphyrapicus nuchalis), northern flickers (Colaptes auratus), tree swallows (Tachycineta bicolor), and mountain chickadees (Parus gambeli) in the Uinta Mountains of northeastern Utah, USA. We then tested the predictive capability of the models with independent data collected in the field the following year. The models built for the northern flicker, red-naped sapsucker, and tree swallow were relatively accurate (84%, 80%, and 75% nests correctly classified, respectively) compared to the models for the mountain chickadee (50% nests correctly classified). All four models were more selective than a null model that predicted habitat based solely on a gross association with aspen forests. We conclude that associations with landscape patterns can be used to build relatively accurate, easy to use, predictive models for some species. Our results stress, however, that both selecting the proper scale at which to assess landscape associations and empirically testing the models derived from those associations are crucial for building useful predictive models. JF - Landscape Ecology AU - Lawler, J J AU - Edwards, TC Jr AD - Department of Fisheries and Wildlife and The Ecology Center, Utah State University, Logan, UT 84322-5210, USA, lawler.joshua@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 233 EP - 245 VL - 17 IS - 3 SN - 0921-2973, 0921-2973 KW - Perching birds KW - Ecology Abstracts KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18504596?accountid=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=Landscape+patterns+as+habitat+predictors%3A+building+and+testing+models+for+cavity-nesting+birds+in+the+Uinta+Mountains+of+Utah%2C+USA&rft.au=Lawler%2C+J+J%3BEdwards%2C+TC+Jr&rft.aulast=Lawler&rft.aufirst=J&rft.date=2002-01-01&rft.volume=17&rft.issue=3&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Landscape+Ecology&rft.issn=09212973&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 - Dietary Folate Deficiency Enhances Induction of Micronuclei by Arsenic in Mice AN - 18484785; 5454065 AB - Folate deficiency increases background levels of DNA damage and can enhance the genotoxicity of chemical agents. Arsenic, a known human carcinogen present in drinking water supplies around the world, induces chromosomal and DNA damage. The effect of dietary folate deficiency on arsenic genotoxicity was evaluated using a mouse peripheral blood micronucleus (MN) assay. In duplicate experiments, male C57BI/6J mice were fed folate-deficient or folate-sufficient diets for 7 weeks. During week 7, mice on each diet were given four consecutive daily doses of sodium arsenite (0, 2.5, 5, or 10 mg/kg) via oral gavage. Over the course of the study the folate-deficient diet produced an approximate 60% depletion of red blood cell folate. Folate deficiency by itself was associated with small but significant increases in MN in normochromatic erythrocytes (NCEs) and polychromatic erythrocytes (PCEs). Arsenic exposure was associated with significant increases in MN-PCEs in both folate-deficient and folate-sufficient mice. MN-PCE frequencies at the 10 mg/kg dose of arsenic were increased 4.5-fold over vehicle control in folate-deficient mice and 2.1-fold over control in folate-sufficient mice. At the 5 and 10 mg/kg doses of arsenic, MN-PCE levels were significantly higher (1.3-fold and 2.4-fold, respectively) in folate-deficient mice compared to folate-sufficient mice. Very few MN from either control or treated animals in either experiment exhibited kinetochore immunostaining, suggesting that the MN were derived from chromosome breakage rather than from whole chromosome loss. These results indicate that folate deficiency enhances arsenic-induced clastogenesis at doses of 5 mg/kg and higher. JF - Environmental and Molecular Mutagenesis AU - McDorman, E W AU - Collins, B W AU - Allen, J W AD - US Environmental Protection Agency, Environmental Carcinogenesis Division (MD-68), Research Triangle Park, NC 27711, USA, allen.james@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 71 EP - 77 VL - 40 IS - 1 SN - 0893-6692, 0893-6692 KW - deficiency KW - mice KW - Toxicology Abstracts KW - X 24165:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18484785?accountid=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=Dietary+Folate+Deficiency+Enhances+Induction+of+Micronuclei+by+Arsenic+in+Mice&rft.au=McDorman%2C+E+W%3BCollins%2C+B+W%3BAllen%2C+J+W&rft.aulast=McDorman&rft.aufirst=E&rft.date=2002-01-01&rft.volume=40&rft.issue=1&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Environmental+and+Molecular+Mutagenesis&rft.issn=08936692&rft_id=info:doi/10.1002%2Fem.10085 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1002/em.10085 ER - TY - JOUR T1 - Carcinogenicity of bromodichloromethane administered in drinking water to male F344/N rats and B6C3F sub(1) mice AN - 18474993; 5444704 AB - A life-time exposure study was conducted to assess the carcinogenicity of bromodichloromethane (BDCM) administered in the drinking water to male F344/N rats and B6C3F sub(1) mice. In mouse, the calculated mean daily BDCM concentrations (measured concentrations corrected for on-cage loss of chemical) were 0.06, 0.28 and 0.49 g/l. Time-weighted water consumption of 135, 97, and 89 ml/kg/day resulted in mean daily doses of 8.1, 27.2, and 43.4 mg BDCM/kg/day. No changes in feed consumption, final body weight, or survival were observed. Kidney weights were significantly depressed at 27.2 and 43.4 mg BDCM/kg/day. There was no increase in neoplasia in the liver, kidney, spleen, testis, bladder, sections along the alimentary tract, excised lesions, or at any other organ site. In rat, the corrected mean daily BDCM concentrations were 0.06, 0.33, and 0.62 g/l. Time-weighted water consumption of 65, 63, and 59 ml/kg/day yielded 3.9, 20.6 and 36.3 mg BDCM/kg/day. No alterations in feed consumption, body weight gain, and survival were seen. Kidney weight was significantly depressed in the 36.3-mg/kg/day treatment group. There was a significantly enhanced prevalence and multiplicity of hepatocellular adenomas at 3.9 mg BDCM/kg/day (15.5% and 0.16/animal vs. 2.2% and 0.02/animal for the control). Hepatocellular carcinomas increased from 2.2% and 0.02/animal for the control and 3.9 mg BDCM/kg/day to 8.3% and 0.10/animal at 20.6 mg BDCM/kg/day. The combined neoplasms were enhanced at 3.9 and 20.6 mg BDCM/kg/day. Liver neoplasia was depressed to the control value at 36.3 mg BDCM/kg. The prevalence of basophilic and clear cell, but not eosinophilic cells, altered foci of cells declined with increasing dose. BDCM did not increase cancer in the large bowel, renal tubules, or in any of the other tissues examined. Renal tubular hyperplasia was observed at 36.3 mg BDCM/kg (15.8% vs. 8.7% for the control group). Under the conditions of the study, BDCM in the drinking water was not carcinogenic in the male B6C3F sub(1) mouse, but was carcinogenic in the male F344/N rat based on an increased hepatocellular neoplasia. JF - International Journal of Toxicology AU - George, M H AU - Olson, G R AU - Doerfler, D AU - Moore, T AU - Kilburn, S AU - DeAngelo, AB AD - US EPA MD-68, Research Triangle Park, NC 27711, USA, deangelo.anthony@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 219 EP - 230 VL - 21 IS - 3 SN - 1091-5818, 1091-5818 KW - bromodichloromethane KW - chronic exposure KW - mice KW - rats KW - Toxicology Abstracts KW - X 24152:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18474993?accountid=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=Carcinogenicity+of+bromodichloromethane+administered+in+drinking+water+to+male+F344%2FN+rats+and+B6C3F+sub%281%29+mice&rft.au=George%2C+M+H%3BOlson%2C+G+R%3BDoerfler%2C+D%3BMoore%2C+T%3BKilburn%2C+S%3BDeAngelo%2C+AB&rft.aulast=George&rft.aufirst=M&rft.date=2002-01-01&rft.volume=21&rft.issue=3&rft.spage=219&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 ER - TY - JOUR T1 - Schedule-controlled behavior in rats exposed perinatally to the PCB mixture Aroclor 1254 AN - 18449876; 5428301 AB - Exposure to polychlorinated biphenyls (PCBs) has been shown to detrimentally affect learning and memory in children as well as schedule-controlled behavior in experimental animals. The objective of the present series of experiments was to extend research into the effects of PCBs on behavior maintained under both short (30 s) and long (5 min) fixed-interval (FI) schedules as well as an FI 3-min with reinforcement omission. Long-Evans rats were exposed to 0 or 6 mg/kg/day Aroclor 1254 (A1254) via oral gavage from Gestation Day 6 (GD 6) through Postnatal Day 21 (PND 21). At approximately PND 90, acquisition and steady-state performance were assessed under a series of FI reinforcement schedules consisting of FI 30-s, FI 5-min, and FI 3-min with 33% of the scheduled reinforcers omitted. Performance measures included index of curvature (IOC), response rate, and postreinforcement pause (PRP). There were no effects of A1254 on the acquisition of behavior under the FI 30-s schedule. Subsequently, there was an initial decrease in response rate and IOC and an increase in PRP following the transition from FI 30-s to the FI 5-min; there were, however, no treatment-related effects on any measure. During the reinforcement-omission procedure, there was an increase in the rate of responding and a decrease in IOC and PRP following omission intervals irrespective of treatment. These data are inconsistent with previous findings and suggest that perinatal A1254 exposure in the rat does not disrupt temporally organized behavior. JF - Neurotoxicology and Teratology AU - Taylor, M M AU - Crofton, K M AU - MacPhail, R C AD - Neurotoxicology Division, National Health and Environmental Effects Research Laboratory, US Y1 - 2002 PY - 2002 DA - 2002 SP - 511 EP - 518 VL - 24 IS - 4 SN - 0892-0362, 0892-0362 KW - rats KW - CSA Neurosciences Abstracts; Toxicology Abstracts 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/18449876?accountid=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=Schedule-controlled+behavior+in+rats+exposed+perinatally+to+the+PCB+mixture+Aroclor+1254&rft.au=Taylor%2C+M+M%3BCrofton%2C+K+M%3BMacPhail%2C+R+C&rft.aulast=Taylor&rft.aufirst=M&rft.date=2002-01-01&rft.volume=24&rft.issue=4&rft.spage=511&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 ER - TY - JOUR T1 - Relative Role of Lake and Tributary in Hydrology of Lake Superior Coastal Wetlands AN - 18443324; 5420540 AB - Despite the documented importance of hydrodynamics in influencing the structure and function of Great Lakes coastal wetlands, systematic assessments of coastal wetland hydrology are lacking. This paper addresses this gap by describing patterns in lake and tributary inputs, water residence times, and mixing regimes for a suite of western Lake Superior wetlands that differ in the amount of tributary and seiche flow they receive. We show that variability in tributary flows among wetlands and over time is far greater than variability in seiche-driven water movements, and that the amount of tributary flow strongly influences wetland hydrology via effects on water mixing and residence times, seiche size, mouth closures, and relative amounts of main and off-channel areas. Wetland seiche amplitudes were reduced in systems with small mouth openings and wetland mouth size was correlated with tributary flow. All wetlands experienced seiche-driven water level oscillations, but there was lake water intrusion only into those wetlands where tributary outflow was small relative to the seiche-driven inflow. Wetlands in settings exposed to long-shore sediment transport exhibited periodic mouth closures when stream flows were low. The absolute and relative size of lake and tributary inputs must be explicitly considered in addition to wetland morphology and landscape setting in studies seeking to understand determinants of coastal wetland structure, function, and response to anthropogenic stressors. JF - Journal of Great Lakes Research AU - Trebitz, A S AU - Morrice, JA AU - Cotter, A M AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Blvd., Duluth, Minnesota 55804, USA, trebitz.anett@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 212 EP - 227 VL - 28 IS - 2 SN - 0380-1330, 0380-1330 KW - North America, Superior L. KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Freshwater KW - SW 0850:Lakes KW - Q2 02171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18443324?accountid=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+Great+Lakes+Research&rft.atitle=Relative+Role+of+Lake+and+Tributary+in+Hydrology+of+Lake+Superior+Coastal+Wetlands&rft.au=Trebitz%2C+A+S%3BMorrice%2C+JA%3BCotter%2C+A+M&rft.aulast=Trebitz&rft.aufirst=A&rft.date=2002-01-01&rft.volume=28&rft.issue=2&rft.spage=212&rft.isbn=&rft.btitle=&rft.title=Journal+of+Great+Lakes+Research&rft.issn=03801330&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Journal Includes a Special Section on: "Management of Double-Crested Cormorant In the Laurentian Great Lakes". N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Freshwater ER - TY - JOUR T1 - Evaluation of rapid DNA extraction methods for the quantitative detection of fungi using real-time PCR analysis AN - 18438146; 5422385 AB - Three comparatively rapid methods for the extraction of DNA from fungal conidia and yeast cells in environmental (air, water and dust) samples were evaluated for use in real-time PCR (TaqMan registered ) analyses. A simple bead milling method was developed to provide sensitive, accurate and precise quantification of target organisms in air and water (tap and surface) samples. However, quantitative analysis of dust samples required further purification of the extracted DNA by a streamlined silica adsorption procedure. JF - Journal of Microbiological Methods AU - Haugland, R A AU - Brinkman, N AU - Vesper, S J AD - National Exposure Research Laboratory, U.S. Environmental Protection Agency, 26 W. M.L. King Drive, Cincinnati, OH 45268, USA, haugland.rich@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 319 EP - 323 PB - Elsevier Science VL - 50 IS - 3 SN - 0167-7012, 0167-7012 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - A 01117:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18438146?accountid=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=Journal+of+Microbiological+Methods&rft.atitle=Evaluation+of+rapid+DNA+extraction+methods+for+the+quantitative+detection+of+fungi+using+real-time+PCR+analysis&rft.au=Haugland%2C+R+A%3BBrinkman%2C+N%3BVesper%2C+S+J&rft.aulast=Haugland&rft.aufirst=R&rft.date=2002-01-01&rft.volume=50&rft.issue=3&rft.spage=319&rft.isbn=&rft.btitle=&rft.title=Journal+of+Microbiological+Methods&rft.issn=01677012&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 - Evidence that phosphorus limits phytoplankton growth in a Gulf of Mexico estuary: Pensacola Bay, Florida, USA AN - 18433926; 5416475 AB - Nutrient limitation bioassays were conducted on six dates from November 1998 to September 1999 at two sites, including oligohaline (Upper Bay) and mesohaline regions (Lower Bay), in Pensacola Bay, Florida. Phytoplankton growth responses (measured as changes in chlorophyll a concentration) to inorganic nitrogen (N) and phosphorus (P) additions were monitored for three days. The results showed that, in eight of twelve experiments, phytoplankton growth was stimulated by P additions in comparison with N-amended and un-amended treatments. Nitrogen additions alone did not stimulate growth over P additions in any experiment. The spatial patterns suggest that the potential for P limitation was similar in Upper and Lower Bays. The four experiments with statistically non-significant results were all conducted during winter and spring, suggesting a lower potential for nutrient limitation during the cooler months when nutrient demand (i.e., productivity) is typically low and nutrient supply (i.e., freshwater runoff) is typically high. This study adds to a small but growing literature suggesting that P limitation of phytoplankton growth may be relatively common in warm temperate estuarine systems such as those along the Gulf of Mexico coast. JF - Bulletin of Marine Science AU - Murrell, M C AU - Stanley, R S AU - Lores, E M AU - DiDonato, G T AU - Smith, L M AU - Flemer, DA AD - US EPA, NHEERL, Gulf Ecology Division, One Sabine Island Dr., Gulf Breeze, FL 32561, USA, murrell.michael@epa.gov Y1 - 2002/01// PY - 2002 DA - Jan 2002 SP - 155 EP - 167 VL - 70 IS - 1 SN - 0007-4977, 0007-4977 KW - Water Resources Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Ecology Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Marine KW - O 1070:Ecology/Community Studies KW - K 03009:Algae KW - Q1 01422:Environmental effects KW - D 04627:Algae/lichens UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18433926?accountid=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=Bulletin+of+Marine+Science&rft.atitle=Evidence+that+phosphorus+limits+phytoplankton+growth+in+a+Gulf+of+Mexico+estuary%3A+Pensacola+Bay%2C+Florida%2C+USA&rft.au=Murrell%2C+M+C%3BStanley%2C+R+S%3BLores%2C+E+M%3BDiDonato%2C+G+T%3BSmith%2C+L+M%3BFlemer%2C+DA&rft.aulast=Murrell&rft.aufirst=M&rft.date=2002-01-01&rft.volume=70&rft.issue=1&rft.spage=155&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Marine+Science&rft.issn=00074977&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 - Marine ER - TY - JOUR T1 - Effects of Prenatal Testosterone Propionate on the Sexual Development of Male and Female Rats: A Dose-Response Study AN - 18423848; 5408019 AB - Testosterone plays a major role in male sexual development. Exposure of females to testosterone in utero can induce masculine characteristics such as anovulation, increased anogenital distance (AGD), absence of nipples, retention of male-like tissues, and agenesis of the lower vagina. In addition, high levels of androgens during fetal development can lead to toxic effects such as reduced litter size and viability. The study of the effects of testosterone administration during sexual differentiation provides a foundation for understanding the effects of environmental androgens on fetuses, a sensitive subpopulation. In the current study, we investigated the ability of a range of concentrations of testosterone propionate (TP) administered prenatally to masculinize female and alter male offspring, and measured maternal and fetal T levels. Pregnant Sprague-Dawley rats were dosed by sc injection on gestational day (GD) 14-19 (GD 1= day of plug) with either corn oil (vehicle; 0.1 ml/rat) or with 0.1 ml of TP solution at 0.1, 0.5, 1, 2, 5, or 10 mg/0.1 ml. Parturition was delayed at 2, 5, and 10 mg TP, litter size was reduced at 5 and 10 mg TP, and pup weight was significantly reduced in both sexes at 0.5 mg TP and higher doses. Viability of offspring was unaffected at any dosage level. Androgenic effects seen at 0.5 mg TP in females included increased AGD at weaning and adulthood, reduced number of areolas and nipples, cleft phallus, small vaginal orifice, and presence of prostate tissue. This dose of TP elevated maternal T levels l0x but had no effect on fetal T levels. At 1 mg TP and above, female AGD on postnatal day (PND) 2 (or postcoital day 24 [gestation length = 22 one half ]) was increased; areolas and nipples were virtually eliminated; levator ani muscle, bulbourethral glands, and seminal vesicles (2 mg TP and above) were present; none of the females developed a vaginal orifice and many females in the 1 and 2 mg TP dose groups developed a greatly distended, fluidfilled uterus after puberty. Maternal T levels at 1 mg TP were elevated 30x, and female fetal T levels showed an 80% increase. Male offspring displayed a reduced AGD and body weight on PND 2 at 0.5 mg TP and higher doses. These effects were not evident by weaning and male offspring displayed no malformations. We conclude that gestational administration of 0.5 and 1 mg TP masculinizes female offspring without greatly affecting pup viability or pregnancy of the dam. This study provides a useful model for in utero testing of environmental androgens for their potential to induce developmental abnormalities. JF - Toxicological Sciences AU - Wolf, C J AU - Hotchkiss, A AU - Ostby, J S AU - LeBlanc, G A AU - Gray, LE Jr AD - Reproductive Toxicology Division, Endocrinology Branch, MD 72, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, 86 Alexander Drive, Research Triangle Park, North Carolina 27711, USA Y1 - 2002/01// PY - 2002 DA - Jan 2002 SP - 71 EP - 86 PB - Academic Press, Inc. VL - 65 IS - 1 SN - 1096-6080, 1096-6080 KW - dose-response effects KW - masculinization KW - rats KW - sexual differentiation KW - testosterone propionate KW - Toxicology Abstracts KW - X 24240:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18423848?accountid=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=Effects+of+Prenatal+Testosterone+Propionate+on+the+Sexual+Development+of+Male+and+Female+Rats%3A+A+Dose-Response+Study&rft.au=Wolf%2C+C+J%3BHotchkiss%2C+A%3BOstby%2C+J+S%3BLeBlanc%2C+G+A%3BGray%2C+LE+Jr&rft.aulast=Wolf&rft.aufirst=C&rft.date=2002-01-01&rft.volume=65&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 ER - TY - JOUR T1 - Atmospheric concentrations of ammonia and ammonium at an agricultural site in the southeast United States AN - 18410951; 5401716 AB - In this study, we present similar to 1 yr (October 1998-September 1999) of 12-hour mean ammonia (NH sub(3)), ammonium (NH super(+) sub(4)), hydrochloric acid (HCl), chloride (Cl super(-)), nitrate (NO super(-) sub(3)), nitric acid (HNO sub(3)), nitrous acid (HONO), sulfate (SO super(2) sub(4) super(-)), and sulfur dioxide (SO sub(2)) concentrations measured at an agricultural site in North Carolina's Coastal Plain region. Mean gas concentrations were 0.46, 1.21, 0.54, 5.55, and 4.15 mu g m super(-3) for HCl, HNO sub(3), HONO, NH sub(3), and SO sub(2), respectively. Mean aerosol concentrations were 1.44, 1.23, 0.08, and 3.37 mu g m super(-3) for NH super(+) sub(4), NO super(-) sub(3), Cl super(-), and SO super(2) sub(4) super(-), respectively. Ammonia, NH super(+) sub(4), HNO sub(3), and SO super(2) sub(4) super(-) exhibit higher concentrations during the summer, while higher SO sub(2) concentrations occur during winter. A meteorology-based multivariate regression model using temperature, wind speed, and wind direction explains 76% of the variation in 12-hour mean NH sub(3) concentrations (n = 601). Ammonia concentration increases exponentially with temperature, which explains the majority of variation (54%) in 12-hour mean NH sub(3) concentrations. Dependence of NH sub(3) concentration on wind direction suggests a local source influence. Ammonia accounts for > 70% of NH sub(x) (NH sub(x) = NH sub(3) + NH super(+) sub(4)) during all seasons. Ammonium nitrate and sulfate aerosol formation does not appear to be NH sub(3) limited. Sulfate is primarily associated ammonium sulfate, rather than bisulfate, except during the winter when the ratio of NO super(-) sub(3)-NH super(+) sub(4) is similar to 0.66. The annual average NO super(-) sub(3)-NH super(+) sub(4) ratio is similar to 0.25. JF - Atmospheric Environment AU - Robarge, W P AU - Walker, J T AU - McCulloch, R B AU - Murray, G AD - Air Pollution Prevention and Control Division, National Risk Management Research Laboratory, US Environmental Protection Agency, MD-63, Research Triangle Park, NC 27711, USA, walker.johnt@epamail.epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 1661 EP - 1674 VL - 36 IS - 10 SN - 1352-2310, 1352-2310 KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18410951?accountid=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=Atmospheric+concentrations+of+ammonia+and+ammonium+at+an+agricultural+site+in+the+southeast+United+States&rft.au=Robarge%2C+W+P%3BWalker%2C+J+T%3BMcCulloch%2C+R+B%3BMurray%2C+G&rft.aulast=Robarge&rft.aufirst=W&rft.date=2002-01-01&rft.volume=36&rft.issue=10&rft.spage=1661&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 - SuppNotes - NADP 2000 - Ten Years After the Clean Air Act Amendments. N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Foot Transfer of Lawn-Applied Pesticides from Turf to Carpet: Comparison of Semivolatile Chlorpyrifos with Nonvolatile Chlorothalonil AN - 18405786; 5390964 AB - Many homeowners use herbicides, insecticides and fungicides for turf grass treatment. These pesticides span a broad spectrum of chemical and physical properties, ranging from nonvolatile to semivolatile and somewhat water soluble to essentially insoluble. Residues of pesticides are found on lawns after direct applications or as a result of drift from applications to ornamentals, gardens, or perimeters of buildings. These residues dissipate by volatilization, transport to soil by rainfall or watering, photochemical and microbial degradation, and other mechanisms. The lifetimes of pesticide residues on turf are generally short relative to those on indoor surfaces. Rainfall, sunlight, volatilization, erosion, microbial degradation, and removal of grass clippings reduce or eliminate most residues in a matter of days or a few weeks. Post-emergence acid herbicides such as 2,4-dichlorophenoxyacetic acid (2,4-D) and dicamba (3,6-dichloro-2-methoxybenzoic acid) are typically applied in the form of amine salts, which have very low vapor pressures, but they have relatively high water solubilities and are rapidly depleted by irrigation or rainfall. Organophosphate insecticides, such as diazinon and chlorpyrifos (recently withdrawn from residential use), tend to vaporize rather quickly from treated turf grass. While pesticide formulations contain adjuvants to increase adhesion to the plant surface, some portion of the residues remaining on the leaves of the grass are dislodgeable and may be transferred to the skin or transported into the home on shoes, clothing and pets. Many of the pesticides identified in house dust and indoor air obviously have outdoor sources. The presence in house dust of pesticides such as 2,4-D, chlorothalonil, carbaryl and bendiocarb, which are typically used on the lawn or garden, suggest track-in of turf and soil residues. The study described here examined the temporal behaviors of dislodgeable turf residues of two pesticides that have been commonly used on lawns and estimated the extent to which they may be tracked into a home by normal foot traffic. This study is similar to an earlier study that evaluated track-in of 2,4-D and dicamba, and was carried out to compare dislodgeable turf residue levels and track-in rates for dissimilar pesticides, application methods, and application rates. The applicability of this test design, and comparison of chemical factors such as volatility and water solubility to significantly different pesticides were evaluated here with the insecticide chlorpyrifos in both emulsifiable concentrate (EC) spray and granular (G) applications and the fungicide chlorothalonil in an EC formulation. JF - Bulletin of Environmental Contamination and Toxicology AU - Nishioka, M G AU - Lewis, R G AU - Brinkman, M C AU - Burkholder, H M AD - U.S. EPA, National Exposure Research Laboratory, Research Triangle Park, NC 27711, USA Y1 - 2002/01// PY - 2002 DA - Jan 2002 SP - 64 EP - 71 VL - 68 IS - 1 SN - 0007-4861, 0007-4861 KW - chlorothalonil KW - chlorpyrifos KW - exposure KW - lawns KW - man KW - Pollution Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - A 01110:Environmental KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18405786?accountid=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=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.atitle=Foot+Transfer+of+Lawn-Applied+Pesticides+from+Turf+to+Carpet%3A+Comparison+of+Semivolatile+Chlorpyrifos+with+Nonvolatile+Chlorothalonil&rft.au=Nishioka%2C+M+G%3BLewis%2C+R+G%3BBrinkman%2C+M+C%3BBurkholder%2C+H+M&rft.aulast=Nishioka&rft.aufirst=M&rft.date=2002-01-01&rft.volume=68&rft.issue=1&rft.spage=64&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 ER - TY - JOUR T1 - Responses of soil microbial biomass, nematode trophic groups, N-mineralization, and litter decomposition to disturbance events in the southern Appalachians AN - 18369067; 5342059 AB - Seasonal measurements of soil microbial biomass, nematode trophic groups, net N-mineralization, net nitrification, net ammonification, litter decomposition, and soil respiration rates were examined to assess the effects of rhododendron (Rhododendron maximum L.) removal and hurricane windthrow upon these factors. Comparisons of pre- and post-disturbance quantities of soil microbial biomass carbon ranged from 503 to 1080 mu g C g soil super(-1) and microbial biomass nitrogen ranged from 67 to 169 mu g total persulfate nitrogen g soil super(-1), showing no significant differences or trends in response to these disturbance events. Total nematode abundance ranged from 13.05 to 54.31 nematodes g soil super(-1) and showed no significant differences in response to these disturbance events, although overall nematode abundance was declining in the disturbed plots at the end of the study. Nematode trophic structure was fairly consistent across both sites and all sampling dates and exhibited no discernible trends in response to these disturbance events. Rates of net N-mineralization, nitrification, and ammonification exhibited greater variability, post-disturbance. Litter decomposition rates and soil respiration rates decreased following the disturbance events, with respiration rates in the Cut plot being significantly higher across years. Overall, the effects of these disturbance events upon soil properties were highly variable and were unrelated to the major increases in N loss that were detected from deeper soil horizons following the hurricane windthrow event. JF - Soil Biology and Biochemistry AU - Wright, C J AU - Coleman, D C AD - University of Georgia, Institute of Ecology, Ecology Annex, Athens, GA 30602, USA, wright.christina@epa.gov Y1 - 2002/01// PY - 2002 DA - Jan 2002 SP - 13 EP - 25 VL - 34 IS - 1 SN - 0038-0717, 0038-0717 KW - Nematodes KW - Rosebay rhododendron KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Ecology Abstracts KW - A 01047:General KW - D 04600:Soil UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18369067?accountid=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=Soil+Biology+and+Biochemistry&rft.atitle=Responses+of+soil+microbial+biomass%2C+nematode+trophic+groups%2C+N-mineralization%2C+and+litter+decomposition+to+disturbance+events+in+the+southern+Appalachians&rft.au=Wright%2C+C+J%3BColeman%2C+D+C&rft.aulast=Wright&rft.aufirst=C&rft.date=2002-01-01&rft.volume=34&rft.issue=1&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Soil+Biology+and+Biochemistry&rft.issn=00380717&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 - Axes of Extrapolation in Risk Assessment AN - 18311321; 5355355 AB - Extrapolation in risk assessment involves the use of data and information to estimate or predict something that has not been measured or observed. Reasons for extrapolation include that the number of combinations of environmental stressors and possible receptors is too large to characterize risks comprehensively, that direct characterization is sometimes impossible, and that the power to characterize risk in a particular situation can be enhanced by using information obtained in other similar situations. Three types of extrapolation are common in risk assessments: biological (including between taxa and across levels of biological organization), temporal, and spatial. They can be thought of conceptually as the axes of a 3-dimensional graph defining the state space of biological, temporal, and spatial scales within which extrapolations are made. Each of these types of extrapolation can introduce uncertainties into risk assessments. Such uncertainties may be reduced through synergistic research facilitated by the sharing of methods, models, and data used by human health and ecological scientists. JF - Human and Ecological Risk Assessment AU - Munns, WR Jr AD - U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, 27 Tarzwell Drive, Narragansett, RI 02882, USA, munns.wayne@epa.gov Y1 - 2002/01// PY - 2002 DA - Jan 2002 SP - 19 EP - 29 VL - 8 IS - 1 SN - 1080-7039, 1080-7039 KW - extrapolation KW - Toxicology Abstracts KW - Risk assessment KW - Synergism KW - Reviews KW - Toxicity testing KW - X 24250:Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18311321?accountid=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=Human+and+Ecological+Risk+Assessment&rft.atitle=Axes+of+Extrapolation+in+Risk+Assessment&rft.au=Munns%2C+WR+Jr&rft.aulast=Munns&rft.aufirst=WR&rft.date=2002-01-01&rft.volume=8&rft.issue=1&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=Human+and+Ecological+Risk+Assessment&rft.issn=10807039&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; Synergism; Risk assessment; Reviews ER - TY - JOUR T1 - Tissue Carboxylesterases and Chlorpyrifos Toxicity in the Developing Rat AN - 18305980; 5355360 AB - Young animals are more sensitive than adults to the neurotoxic effects of some organophosphorus insecticides. Many investigators attribute this difference in sensitivity to the immaturity of the detoxification capacity of preweanling rats. Chlorpyrifos [O, O-diethyl O-(3,5,6-trichloro-2-pyridyl) phosphorothionate] is an organophosphorus insecticide that demonstrates considerable age-related sensitivity. The carboxylesterases are a group of related enzymes that detoxify organophosphorus insecticides by stoichiometrically binding these molecules before they can inhibit acetylcholinesterase. This study presents in vitro and in vivo evidence demonstrating that the carboxylesterases are critical for explaining the age-related sensitivity of chlorpyrifos. The data show that the fetal rat and the postnatal day 17 (PND17) rat pup have fewer molecules of carboxylesterase (less activity), less sensitive molecules of carboxylesterase, and a larger proportion of chlorpyrifos-insensitive molecules of carboxylesterase. An in vitro mixing experiment, using adult striatum as a source of acetylcholinesterase and liver homogenates as a source of carboxylesterase, demonstrates that the adult liver carboxylesterases are superior to the PND17 liver carboxylesterases for detoxifying chlorpyrifos. In the in vivo experiments the time course profiles of carboxylesterase and cholinesterase activity following a maximum tolerated dose of chlorpyrifos also suggest that the carboxylesterases of the PND17 rat were less capable of detoxifying chlorpyrifos. Carboxylesterase activity in the preweanling rat was not as severely inhibited as in the adult, but decrements in cholinesterase activity as a result of chlorpyrifos treatment were comparable. These in vitro and in vivo findings support the previously proffered postulate that the carboxylesterases are critical for determining the age-related sensitivity of chlorpyrifos. In addition, these detailed experiments allow us to propose that the detoxification potential of these enzymes is multifaceted, and depends on the (1) amount of activity (i.e., number of molecules), (2) affinity for the insecticide or metabolite, and (3) amount of carboxylesterase activity that is refractory to inhibition by the insecticide or metabolite. JF - Human and Ecological Risk Assessment AU - Chanda, S M AU - Lassiter, T L AU - Moser, V C AU - Barone, S Jr AU - Padilla, S AD - Neurotoxicology Division (MD-74B), U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA, padilla.stephanie@epa.gov Y1 - 2002/01// PY - 2002 DA - Jan 2002 SP - 75 EP - 90 VL - 8 IS - 1 SN - 1080-7039, 1080-7039 KW - Toxicology Abstracts KW - Chlorpyrifos KW - Tissues KW - Age KW - Organophosphorus compounds KW - Insecticides KW - Animal models KW - Carboxylesterase KW - Neonates KW - X 24132:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18305980?accountid=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=Human+and+Ecological+Risk+Assessment&rft.atitle=Tissue+Carboxylesterases+and+Chlorpyrifos+Toxicity+in+the+Developing+Rat&rft.au=Chanda%2C+S+M%3BLassiter%2C+T+L%3BMoser%2C+V+C%3BBarone%2C+S+Jr%3BPadilla%2C+S&rft.aulast=Chanda&rft.aufirst=S&rft.date=2002-01-01&rft.volume=8&rft.issue=1&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Human+and+Ecological+Risk+Assessment&rft.issn=10807039&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 - Insecticides; Organophosphorus compounds; Carboxylesterase; Chlorpyrifos; Animal models; Age; Neonates; Tissues ER - TY - JOUR T1 - Incorporating concentration dependence in stable isotope mixing models AN - 18239612; 5302144 AB - Stable isotopes are often used as natural labels to quantify the contributions of multiple sources to a mixture. For example, C and N isotopic signatures can be used to determine the fraction of three food sources in a consumer's diet. The standard dual isotope, three source linear mixing model assumes that the proportional contribution of a source to a mixture is the same for both elements (e.g., C, N). This may be a reasonable assumption if the concentrations are similar among all sources. However, one source is often particularly rich or poor in one element (e.g., N), which logically leads to a proportionate increase or decrease in the contribution of that source to the mixture for that element relative to the other element (e.g., C). We have developed a concentration-weighted linear mixing model, which assumes that for each element, a source's contribution is proportional to the contributed mass times the elemental concentration in that source. The model is outlined for two elements and three sources, but can be generalized to n elements and n+1 sources. Sensitivity analyses for C and N in three sources indicated that varying the N concentration of just one source had large and differing effects on the estimated source contributions of mass, C, and N. The same was true for a case study of bears feeding on salmon, moose, and N-poor plants. In this example, the estimated biomass contribution of salmon from the concentration-weighted model was markedly less than the standard model estimate. Application of the model to a captive feeding study of captive mink fed on salmon, lean beef, and C-rich, N-poor beef fat reproduced very closely the known dietary proportions, whereas the standard model failed to yield a set of positive source proportions. Use of this concentration-weighted model is recommended whenever the elemental concentrations vary substantially among the sources, which may occur in a variety of ecological and geochemical applications of stable isotope analysis. Possible examples besides dietary and food web studies include stable isotope analysis of water sources in soils, plants, or water bodies; geological sources for soils or marine systems; decomposition and soil organic matter dynamics, and tracing animal migration patterns. A spreadsheet for performing the calculations for this model is available at http://www.epa.gov/wed/pages /models.htm. JF - Oecologia AU - Phillips, DI AU - Koch, P I AD - U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Western Ecology Division, 200 SW 35th Street, Corvallis, OR 97333, USA, phillips.donald@epamail.epa.gov Y1 - 2002/01// PY - 2002 DA - Jan 2002 SP - 114 EP - 125 PB - Springer-Verlag, [URL:http://link.springer.de/link/service/journals/00442/bibs/2130 001/21300114.htm] VL - 130 IS - 1 SN - 0029-8549, 0029-8549 KW - stable isotopes KW - Ecology Abstracts KW - Methodology KW - Models KW - D 04615:Ecology studies - general KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18239612?accountid=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=Incorporating+concentration+dependence+in+stable+isotope+mixing+models&rft.au=Phillips%2C+DI%3BKoch%2C+P+I&rft.aulast=Phillips&rft.aufirst=DI&rft.date=2002-01-01&rft.volume=130&rft.issue=1&rft.spage=114&rft.isbn=&rft.btitle=&rft.title=Oecologia&rft.issn=00298549&rft_id=info:doi/10.1007%2Fs004420100786 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Models; Methodology DO - http://dx.doi.org/10.1007/s004420100786 ER - TY - JOUR T1 - Salmon Recovery: Learning from Successes and Failures AN - 17780821; 5639990 AB - In this essay, I propose an answer to the question: What has been learned from 150 yr of efforts to protect and restore wild salmon in western North America? A century and a half of experience with managing salmon runs should reveal some general patterns, a few principles, and a handful of lessons learned -- those that are likely to remain relevant through the current century. I will propose five lessons that are central to understanding the salmon decline and especially public policies concerning salmon recovery. JF - Northwest Science AU - Lackey, R T AD - National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Corvallis, Oregon 97333, USA, lackey.robert@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 356 VL - 76 IS - 4 SN - 0029-344X, 0029-344X KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - North America KW - Recovery KW - Salmonidae KW - Learning behaviour KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08423:Behaviour UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17780821?accountid=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=Northwest+Science&rft.atitle=Salmon+Recovery%3A+Learning+from+Successes+and+Failures&rft.au=Lackey%2C+R+T&rft.aulast=Lackey&rft.aufirst=R&rft.date=2002-01-01&rft.volume=76&rft.issue=4&rft.spage=356&rft.isbn=&rft.btitle=&rft.title=Northwest+Science&rft.issn=0029344X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Recovery; Learning behaviour; Salmonidae; North America ER - TY - JOUR T1 - Light nonaqueous-phase liquid hydrocarbon weathering at some JP-4 fuel release sites AN - 16197438; 6400270 AB - A fuel weathering study was conducted for database entries to estimate natural light, nonaqueous-phase liquid 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 the fuels was difficult because of the large ranges of initial BTEX values. JF - Journal of Hazardous Substance Research AU - Kampbell, D H AU - Snyder, C B AU - Downey, D C AU - Hansen, JE AD - National Risk Management Research Laboratory, United States Environmental Protection Agency, P.O. Box 1198, Ada, OK 74820, USA Y1 - 2002 PY - 2002 DA - 2002 VL - 3 SN - 1090-7025, 1090-7025 KW - weathering KW - Pollution Abstracts KW - nonaqueous phase liquids KW - Xylene KW - Fuels KW - Toluene KW - benzene KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16197438?accountid=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=Light+nonaqueous-phase+liquid+hydrocarbon+weathering+at+some+JP-4+fuel+release+sites&rft.au=Kampbell%2C+D+H%3BSnyder%2C+C+B%3BDowney%2C+D+C%3BHansen%2C+JE&rft.aulast=Kampbell&rft.aufirst=D&rft.date=2002-01-01&rft.volume=3&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 - 2005-09-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - nonaqueous phase liquids; Xylene; Toluene; Fuels; benzene ER - TY - JOUR T1 - Advances in control of PM2.5 and PM2.5 precursors generated by the combustion of pulverized coal AN - 16177574; 5937255 AB - Particulate matter smaller than 2.5 mm in aerodynamic diametre (PM2.5) from coal-fired boilers is composed of directly emitted (primary) particles and particles formed from precursors (secondary particles). Technologies to reduce emissions of precursors to secondary PM2.5 emitted by coal-fired utility plants include wet and dry flue gas desulphurization (FGD). Limestone forced oxidation (LSFO) systems are the predominant wet FGD technology in use, and lime spray dryers (LSDs) represent the predominant dry FGD systems. A predictive model indicates that LSD systems have lower annualized costs than LSFO systems for coals with less than 2% sulphur and for plants smaller than 300 MWe. Control technologies for primary PM2.5 include hybrid systems such as the combined hybrid particulate control system and an electrostatically enhanced fabric filter (ESFF) system. The ESFF can provide improved PM2.5 collection and lower fan power requirements compared to a conventional pulse-jet baghouse. JF - International Journal of Environment and Pollution AU - Miller, CA AU - Srivastava, R K AU - Sedman, C B AD - U.S. Environmental Protection Agency, Of.ce of Research and Development, National Risk Management Research Laboratory, Air Pollution Prevention and Control Division (MD-65), Research Triangle Park, NC 27711, USA Y1 - 2002 PY - 2002 DA - 2002 VL - 17 IS - 1-2 SN - 0957-4352, 0957-4352 KW - Pollution Abstracts KW - Filters KW - Limestone KW - Combustion products KW - Flue gas desulfurization KW - Emission control KW - Air pollution control KW - Boilers KW - Particulates KW - Coal KW - Utilities KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16177574?accountid=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+Environment+and+Pollution&rft.atitle=Advances+in+control+of+PM2.5+and+PM2.5+precursors+generated+by+the+combustion+of+pulverized+coal&rft.au=Miller%2C+CA%3BSrivastava%2C+R+K%3BSedman%2C+C+B&rft.aulast=Miller&rft.aufirst=CA&rft.date=2002-01-01&rft.volume=17&rft.issue=1-2&rft.spage=&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 - Date revised - 2004-08-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Filters; Limestone; Flue gas desulfurization; Combustion products; Air pollution control; Emission control; Coal; Particulates; Boilers; Utilities ER - TY - JOUR T1 - The Baffled Flask Test for Dispersant Effectiveness: A Round Robin Evaluation of Reproducibility and Repeatability AN - 16159427; 5587759 AB - After two previous investigations demonstrated that the baffled flask test was an effective and reproducible method for screening the effectiveness of dispersant products in the laboratory, the US Environmental Protection Agency decided that before the new protocol could be considered for replacement of the swirling flask test, it would have to be subjected to an interlaboratory round robin investigation. This paper describes how the round robin evaluation was carried out and presents repeatability and reproducibility calculations that demonstrate the superiority of the new method over previous methods. Probabilities for passing various threshold levels of effectiveness values were computed, and the results will be used by the Agency to develop final pass-fail decision rules for dispersant manufacturers wishing to have their products listed on the national contingency plan product schedule. JF - Spill Science & Technology Bulletin AU - Venosa, AD AU - King, D W AU - Sorial, G A AD - National Risk Management Research Laboratory, US Environmental Protection Agency, 26 W. Martin Luther King Dr., Cincinnati, OH 45268, USA, venosa.albert@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 299 EP - 308 VL - 7 IS - 5-6 SN - 1353-2561, 1353-2561 KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Screening KW - Pollution clean-up KW - Performance assessment KW - Dispersants KW - Methodology KW - Evaluation KW - EPA KW - Laboratory methods KW - Water pollution treatment KW - Tests KW - Standards KW - Oil removal KW - P 1000:MARINE POLLUTION KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16159427?accountid=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=Spill+Science+%26+Technology+Bulletin&rft.atitle=The+Baffled+Flask+Test+for+Dispersant+Effectiveness%3A+A+Round+Robin+Evaluation+of+Reproducibility+and+Repeatability&rft.au=Venosa%2C+AD%3BKing%2C+D+W%3BSorial%2C+G+A&rft.aulast=Venosa&rft.aufirst=AD&rft.date=2002-01-01&rft.volume=7&rft.issue=6&rft.spage=455&rft.isbn=&rft.btitle=&rft.title=AIDS+Education+and+Prevention&rft.issn=08999546&rft_id=info:doi/101521aeap2016286455 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2003-07-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Evaluation; Screening; Tests; Water pollution treatment; Standards; Performance assessment; Dispersants; Methodology; EPA; Laboratory methods; Pollution clean-up; Oil removal ER - TY - JOUR T1 - Extraction Rate Problems Lead to Increased Costs at Pump-and-Treat Facilities: A Call to Improve Reporting of Rates AN - 16157130; 5594225 AB - Experiences at five pump-and-treatment (P&T) facilities provide three important lessons: 1. To reduce future costs, it is important to use the best hydraulic information possible for designing P&T systems, and to incorporate flexibility to compensate for uncertainties in hydraulic conditions. A phased approach to P&T system construction and hydraulic testing has been successful. 2. In practice, downtimes and maintenance problems result in significant reductions in the average ground water extraction rates. This indicates that operation and maintenance were more difficult than expected and warrant more attention. Furthermore, P&T systems are generally designed to attain the model optimized extraction rates only when the system is in full operation. Designers must recognize that P&T systems have downtimes, and, therefore, the uptime pumping must be sufficient to maintain capture. Generally, P&T systems should achieve model-optimized extraction rates on an average basis rather than only when the system is in full operation. 3. During operation of P&T systems, the average extraction rates should be routinely correlated to capture zone evaluations and included in monitoring reports. The average extraction rates should be compared to the model-derived extraction rates to assess whether the design objectives are being met and should be included in routine monitoring reports to confirm maintenance of pumping rates under which capture has been demonstrated. JF - Ground Water Monitoring and Remediation AU - Boice, R AD - U.S. Environment Protection Agency, Region 5, 77 W. Jackson Blvd., Chicago, IL, USA, boice.richard@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 76 EP - 81 VL - 22 IS - 2 SN - 1069-3629, 1069-3629 KW - Water Resources Abstracts; Aqualine Abstracts; Pollution Abstracts KW - Low cost) KW - Hydraulics KW - Groundwater Pollution KW - Costs (see also Economics KW - Costs KW - Economics KW - Pumping KW - Design data KW - Case study KW - Pollutant removal KW - Water Pollution Treatment KW - Case Studies KW - Pollution (Groundwater) KW - Performance Evaluation KW - Design Criteria KW - Remediation KW - Groundwater pollution KW - Operating Policies KW - Monitoring KW - P 2000:FRESHWATER POLLUTION KW - SW 3070:Water quality control KW - AQ 00004:Water Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16157130?accountid=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=Extraction+Rate+Problems+Lead+to+Increased+Costs+at+Pump-and-Treat+Facilities%3A+A+Call+to+Improve+Reporting+of+Rates&rft.au=Boice%2C+R&rft.aulast=Boice&rft.aufirst=R&rft.date=2002-01-01&rft.volume=22&rft.issue=2&rft.spage=76&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 - 2003-06-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Hydraulics; Pollutant removal; Remediation; Economics; Groundwater pollution; Pollution (Groundwater); Case study; Low cost); Water Pollution Treatment; Costs (see also Economics; Design data; Pumping; Monitoring; Costs; Performance Evaluation; Case Studies; Design Criteria; Groundwater Pollution; Operating Policies ER - TY - JOUR T1 - Known health consequences of urban pollution TT - Consequences de la pollution urbaine sur la sante AN - 16155569; 5595329 JF - Techniques Sciences Methodes. Genie Urbain-Genie Rural AU - Adedeji, A AD - Agence pour la protection de l'environnement de l'Etat de Lagos (Lagos State Environmental Protection Agency - LASEPA) Nigeria Y1 - 2002 PY - 2002 DA - 2002 SP - 29 EP - 36 VL - 11 SN - 0299-7258, 0299-7258 KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts; Health & Safety Science Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Pollution effects KW - Environmental health KW - Public Health KW - Urban Areas KW - Water Pollution Effects KW - Atmospheric pollution and health KW - Environmental Policy KW - Public-health KW - Urban atmospheric pollution KW - Environmental issues KW - Pollution (Water) KW - Urban areas KW - Urban environment KW - M2 551.510.42:Air Pollution (551.510.42) KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of 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/16155569?accountid=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=Techniques+Sciences+Methodes.+Genie+Urbain-Genie+Rural&rft.atitle=Known+health+consequences+of+urban+pollution&rft.au=Adedeji%2C+A&rft.aulast=Adedeji&rft.aufirst=A&rft.date=2002-01-01&rft.volume=20&rft.issue=4&rft.spage=327&rft.isbn=&rft.btitle=&rft.title=Health+Promotion+International&rft.issn=09574824&rft_id=info:doi/10.1093%2Fheapro%2Fdai012 LA - French DB - ProQuest Environmental Science Collection N1 - Date revised - 2003-09-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Atmospheric pollution and health; Urban atmospheric pollution; Urban environment; Environmental health; Pollution effects; Urban areas; Public-health; Environmental issues; Pollution (Water); Public Health; Water Pollution Effects; Urban Areas; Environmental Policy ER - TY - JOUR T1 - Free-water Depth As A Management Tool For Constructed Wetlands AN - 16154575; 5448985 AB - The EPA's National Urban Runoff Program (Athayde 1982) conducted several decades ago clearly showed contaminants exist in urban runoff and more recent research shows that constructed wetlands can lower the concentration of unwanted compounds in stormwater runoff (Stockdale 1991, Wu 1995, Watanabe 1997). Although wetlands constructed to treat stormwater runoff are increasingly-used to help meet environmental goals, the understanding of this application lags behind the understanding of wastewater treatment. As stormwater applications increase, the need to understand internal wetland processes and the management options becomes proportionally more important. Studies are underway in our laboratory to gain a more thorough understanding of selected operating processes within a constructed stormwater wetland. Early experiments in our lab failed to produce desired vigorous plant growth within the test wetland cells, although the selected water depths were well within the established ranges for the mature species (Woodland 1991). One suspected cause of the inhibited growth was the freestanding water in the cells during the sprouting stage. Wetland plants which are able to establish themselves in the same water depths as the mature parental strain are known to have shared responses to the environmental gradient. On the other hand, plants that cannot establish themselves in the same water depth as the mature parental strain have some distinct responses to water depths (Keddy and Ellis 1985). Wetland species are further classified into two major groups based on the water depth establishment requirements. Drawdown species establish themselves when there is no standing water, and standing water species establish themselves when water is present (Keddy and Ellis 1985). This study was conducted to compare the growth of three wetland plant species grown in three different water depths. Management techniques for an established wetland are somewhat limited, but matching the free water depth with selected species is a potential technique to control specific plant communities. The design of the wetland can incorporate features enabling users to control or select water depth. Plant attributes affected by the water depth can be indirectly controlled using these wetland design features. JF - Journal of Aquatic Plant Management AU - Borst, M AU - Riscassi, AL AU - Estime, L AU - Fassman, EL AD - United States Environmental Protection Agency, National Risk Management Research Laboratory, 2890 Woodbridge Avenue, Edison, NJ 08837, USA, Estime.Lunique@epa.gov Y1 - 2002/01// PY - 2002 DA - Jan 2002 SP - 43 EP - 45 PB - Aquatic Plant Management Society, Inc., PO Box 1477 Lehigh Acres FL 33970 USA VL - 40 IS - 1 SN - 0146-6623, 0146-6623 KW - Water Resources Abstracts KW - Storm Water KW - Vegetation Establishment KW - Plant Populations KW - Experimental Data KW - Comparison Studies KW - Design Criteria KW - Water Depth KW - Urban Runoff KW - Artificial Wetlands KW - SW 3070:Water quality control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16154575?accountid=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+Aquatic+Plant+Management&rft.atitle=Free-water+Depth+As+A+Management+Tool+For+Constructed+Wetlands&rft.au=Borst%2C+M%3BRiscassi%2C+AL%3BEstime%2C+L%3BFassman%2C+EL&rft.aulast=Borst&rft.aufirst=M&rft.date=2002-01-01&rft.volume=40&rft.issue=1&rft.spage=43&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aquatic+Plant+Management&rft.issn=01466623&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Experimental Data; Plant Populations; Vegetation Establishment; Storm Water; Comparison Studies; Design Criteria; Water Depth; Urban Runoff; Artificial Wetlands ER - TY - JOUR T1 - Evaluation of Demonstrated and Emerging Technologies for the Treatment and Clean-up of Contaminated Land and Groundwater AN - 16148203; 5627146 AB - The problem of land and groundwater contamination from improper handling and disposal of hazardous materials and wastes is faced by all countries. Many countries have committed resources to developing advanced, innovative remediation technologies and to evaluating them under field conditions. The ongoing challenge is how to maximise the value of these technology demonstrations and effectively transfer the technologies both within and between countries. The purpose of this NATO/CCMS Pilot Study was to identify, discuss, and review innovative, emerging, and alternative technologies, and to transfer technical performance and economic information to potential users of these technologies. A specific objective of the study was to identify 'lessons learned' from the technology demonstrations - both the successes and those that illustrated technology failures or limitations. The latter type of information is rarely presented in conferences or discussed in the technical literature, but is very important for making informed decisions involving critical time and monetary requirements. It is also useful for defining priorities in research and development programs. Detailed reports from each meeting are available at www.nato.int. JF - Land Contamination & Reclamation AU - James, S C AU - Kovalick, WW Jr AD - National Risk Management Research Laboratory, US Environmental Protection Agency, 26 Martin Luther King Dr, Cincinnati, OH 45268, USA, james.steve@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 239 EP - 246 VL - 10 IS - 4 SN - 0967-0513, 0967-0513 KW - Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Pollution clean-up KW - Decontamination KW - Groundwater Pollution KW - Economic Aspects KW - Information exchange KW - Land reclamation KW - Information science KW - Soil Contamination KW - Water Pollution Treatment KW - Case Studies KW - Technology transfer KW - Performance Evaluation KW - Hazardous materials KW - Pollution control (Environmental) KW - Reviews KW - Remediation KW - Groundwater KW - Pollution control (Ground water) KW - Technology KW - AQ 00001:Water Resources and Supplies KW - P 9000:ENVIRONMENTAL ACTION KW - SW 3070:Water quality control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16148203?accountid=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=Land+Contamination+%26+Reclamation&rft.atitle=Evaluation+of+Demonstrated+and+Emerging+Technologies+for+the+Treatment+and+Clean-up+of+Contaminated+Land+and+Groundwater&rft.au=James%2C+S+C%3BKovalick%2C+WW+Jr&rft.aulast=James&rft.aufirst=S&rft.date=2002-01-01&rft.volume=10&rft.issue=4&rft.spage=239&rft.isbn=&rft.btitle=&rft.title=Land+Contamination+%26+Reclamation&rft.issn=09670513&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 - Hazardous materials; Pollution clean-up; Remediation; Decontamination; Technology transfer; Groundwater; Land reclamation; Information exchange; Pollution control (Environmental); Pollution control (Ground water); Information science; Performance Evaluation; Water Pollution Treatment; Soil Contamination; Case Studies; Reviews; Groundwater Pollution; Economic Aspects; Technology ER - TY - JOUR T1 - Preface to the Potential Impacts of Climate Change in the Great Lakes Region AN - 16147026; 5574421 AB - The Global Change Research Program in the U.S. Environmental Protection Agency's (EPA) Office of Research and Development initiated a Great Lakes Regional Assessment process in 1988. The specific focus of the assessment process is the potential consequences of climate variability and change for the Great Lakes region. Its goal is to translate scientific information into timely and useful insights that inform policy and resource management decisions, despite the existence of scientific uncertainties. It is a stakeholder-oriented process that involves the analysis of information from multiple disciplines to answer specific questions being asked by decision makers in the region. It also includes an analysis of adaptation options to improve society's ability to respond effectively to risks and opportunities as they emerge. JF - Journal of Great Lakes Research AU - Scheraga, J D AU - Furlow, J AD - Global Change Research Program, Office of Research and Development, U.S. Environmental Protection Agency, Mail Code 8601-D, 1200 Pennsylvania Avenue NW, Washington, DC 20460, USA, Scheraga.Joel@epa.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 493 EP - 495 VL - 28 IS - 4 SN - 0380-1330, 0380-1330 KW - USA, Great Lakes KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Resource management KW - Regional Analysis KW - Climate change KW - Climatic changes KW - Freshwater KW - Decision Making KW - Resources Management KW - environmental policy KW - Climatic data analysis KW - Research programmes KW - Lakes KW - Climatic variability KW - Climatic Changes KW - Great Lakes research KW - Environmental monitoring KW - Policies KW - Adaptations KW - Public policy and climate KW - Environmental impact KW - Greenhouse eff