Anthropogenic Organic Compounds in Source Water of Nine Community Water Systems That Withdraw from Streams, 2002-05 PDF Download
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Author: James A. Kingsbury
Publisher: DIANE Publishing
ISBN: 1437916090
Category : Science
Languages : en
Pages : 82
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Book Description
Source water, herein defined as stream water collected at a water-system intake prior to water treatment, was sampled at nine community water systems, ranging in size from a system serving about 3,000 people to one that serves about 2 million people. As many as 17 source-water samples were collected at each site over about a 12-month period between 2002 and 2004 for analysis of 258 anthropogenic organic compounds. Most of these compounds are unregulated in drinking water, and the compounds analyzed include pesticides and selected pesticide degradates, gasoline hydrocarbons, personal-care and domestic-use compounds, and solvents. About one-half (134) of the compounds were detected at least once in source-water samples.
Author: James A. Kingsbury
Publisher: DIANE Publishing
ISBN: 1437916090
Category : Science
Languages : en
Pages : 82
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Book Description
Source water, herein defined as stream water collected at a water-system intake prior to water treatment, was sampled at nine community water systems, ranging in size from a system serving about 3,000 people to one that serves about 2 million people. As many as 17 source-water samples were collected at each site over about a 12-month period between 2002 and 2004 for analysis of 258 anthropogenic organic compounds. Most of these compounds are unregulated in drinking water, and the compounds analyzed include pesticides and selected pesticide degradates, gasoline hydrocarbons, personal-care and domestic-use compounds, and solvents. About one-half (134) of the compounds were detected at least once in source-water samples.
Author: James A. Kingsbury
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Source water, herein defined as stream water collected at a water-system intake prior to water treatment, was sampled at nine community water systems, ranging in size from a system serving about 3,000 people to one that serves about 2 million people. As many as 17 source-water samples were collected at each site over about a 12-month period between 2002 and 2004 for analysis of 258 anthropogenic organic compounds. Most of these compounds are unregulated in drinking water, and the compounds analyzed include pesticides and selected pesticide degradates, gasoline hydrocarbons, personal-care and domestic-use compounds, and solvents. The laboratory analytical methods used in this study have relatively low detection levels & mdash;commonly 100 to 1,000 times lower than State and Federal standards and guidelines for protecting water quality. Detections, therefore, do not necessarily indicate a concern to human health but rather help to identify emerging issues and to track changes in occurrence and concentrations over time. About one-half (134) of the compounds were detected at least once in source-water samples. Forty-seven compounds were detected commonly (in 10 percent or more of the samples), and six compounds (chloroform, atrazine, simazine, metolachlor, deethylatrazine, and hexahydrohexamethylcyclopentabenzopyran (HHCB) were detected in more than one-half of the samples. Chloroform was the most commonly detected compound & mdash;in every sample (year round) at five sites. Findings for chloroform and the fragrances HHCB and acetyl hexamethyl tetrahydronaphthalene (AHTN) indicate an association between occurrence and the presence of large upstream wastewater discharges in the watersheds. The herbicides atrazine, simazine, and metolachlor also were among the most commonly detected compounds. Degradates of these herbicides, as well as those of a few other commonly occurring herbicides, generally were detected at concentrations similar to or greater than concentrations of the parent compound. Samples typically contained mixtures of two or more compounds. The total number of compounds and their total concentration in samples generally increased with the amount of urban and agricultural land use in a watershed.
Author: James A. Kingsbury
Publisher: Geological Survey (USGS)
ISBN: 9781411322998
Category : Organic compounds
Languages : en
Pages : 66
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Book Description
Author: Thomas J. Trombley
Publisher:
ISBN:
Category : Drinking water
Languages : en
Pages : 82
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Book Description
Source water, herein defined as stream water collected at a water-system intake prior to water treatment, was sampled at nine community water systems, ranging in size from a system serving about 3,000 people to one that serves about 2 million people. As many as 17 source-water samples were collected at each site over about a 12-month period between 2002 and 2004 for analysis of 258 anthropogenic organic compounds. Most of these compounds are unregulated in drinking water, and the compounds analyzed include pesticides and selected pesticide degradates, gasoline hydrocarbons, personal-care and domestic-use compounds, and solvents. The laboratory analytical methods used in this study have relatively low detection levels--commonly 100 to 1,000 times lower than State and Federal standards and guidelines for protecting water quality. Detections, therefore, do not necessarily indicate a concern to human health but rather help to identify emerging issues and to track changes in occurrence and concentrations over time.
Author: James A. Kingsbury
Publisher:
ISBN:
Category : Organic water pollutants
Languages : en
Pages : 6
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Book Description
Author: Joshua F. Valder
Publisher:
ISBN:
Category : Organic compounds
Languages : en
Pages : 0
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Book Description
Author: Thomas J. Trombley
Publisher: Geological Survey (USGS)
ISBN: 9781411320062
Category : Drinking water
Languages : en
Pages : 38
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Book Description
Author: Mary Ann Thomas
Publisher:
ISBN:
Category : Drinking water
Languages : en
Pages : 19
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Book Description
Author:
Publisher:
ISBN:
Category : Drinking water
Languages : en
Pages : 30
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Book Description
Author: James Albert Smith
Publisher:
ISBN:
Category : Organic compounds
Languages : en
Pages : 104
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Book Description
See journals under US Geological survey. Circular 1007.
