Emerging Contaminants in U.S. Waters

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dc.acquisition-srcen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorBecher, KDen_US
dc.contributor.otherProceedings of the Eighth Biennial State of the Bay Symposium January 23-25, 2007en_US
dc.date.accessioned2010-02-15T16:46:32Z
dc.date.available2010-02-15T16:46:32Z
dc.date.issuedJan. 25, 2007en_US
dc.degreeen_US
dc.description[np]en_US
dc.description-otheren_US
dc.description.abstractThe USGS has been involved in research of emerging contaminants that may occur in surface and ground water, bed sediments, biosolids, and drinking water since the beginning of 1999. Emerging contaminants are chemical and microbial constituents including hormones, food additives, detergents, and pharmaceuticals that typically occur in parts-per-trillion or parts-per-billion concentrations in water. These contaminants are called "emerging" because while they have not historically been monitored in the environment, they have the potential to enter the environment and cause known or suspected adverse ecological and (or) human health effects. Emerging contaminants have been detected in surface water, groundwater, bed sediments, biosolids, and in drinking water. Wastewater influent and effluent studies have indicated that not all of the targeted emerging contaminants are being removed during the wastewater treatment process. Many of the emerging contaminants are known endocrine disruptors in biota and have been detected in water and sediment. There is evidence of endocrine disruption in fish in surface waters below wastewater treatment plants. The health effects of low concentrations of emerging contaminants on wildlife or humans are not definitively known, but antibiotic resistance in bacteria is common, as are endocrine-disrupting effects in fish and amphibians. More studies on the fate and transport of these compounds are being conducted and the search continues to identify other compounds that may have an effect on biota and human health. Analytical methods for analyzing emerging contaminants are typically experimental and development is ongoing, and the USGS has developed analytical methods to detect emerging contaminants in water, sludge, and soil. Currently, the analytical methods developed by the USGS can detect 165 compounds, and the list of compounds continues to grow as analytical methods are improved. The environmental occurrence, potential sources and source pathways, transport and fate, and ecological effects of emerging contaminants are described within this presentation.en_US
dc.description.urien_US
dc.geo-codeUnited Statesen_US
dc.history1-16-09 kswen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/18585
dc.latitudeen_US
dc.locationNot available in house - Please contact GBIC for assistanceen_US
dc.longitudeen_US
dc.notesen_US
dc.placeen_US
dc.publisherGalveston Bay Estuary Programen_US
dc.relation.ispartofseries10102.00en_US
dc.relation.urihttp://gbic.tamug.edu/gbeppubs/sobviii/sobviii_rpr.htm#Becheren_US
dc.scaleen_US
dc.seriesen_US
dc.subjectbed sedimentsen_US
dc.subjectbiosolidsen_US
dc.subjectchemical contaminantsen_US
dc.subjectdrinking wateren_US
dc.subjectground wateren_US
dc.subjecthealth effectsen_US
dc.subjectmicrobial contaminantsen_US
dc.subjectsurface wateren_US
dc.subjectUSGSen_US
dc.titleEmerging Contaminants in U.S. Watersen_US
dc.typeCONFen_US
dc.universityen_US
dc.vol-issueen_US

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