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Comparison of pesticides in eight U.S. urban streams

Identifieur interne : 000A81 ( Istex/Corpus ); précédent : 000A80; suivant : 000A82

Comparison of pesticides in eight U.S. urban streams

Auteurs : Ryan S. Hoffman ; Paul D. Capel ; Steven J. Larson

Source :

RBID : ISTEX:33F86C1324ACC8AF78B9161024555EAC865BE998

English descriptors

Abstract

Little is known of the occurrence of pesticides in urban streams compared to streams draining agricultural areas. Water samples from eight urban streams from across the United States were analyzed for 75 pesticides and seven transformation products. For six of the eight urban streams, paired agricultural streams were used for comparisons. The herbicides detected most frequently in the urban streams were prometon, simazine, atrazine, tebuthiuron, and metolachlor, and the insecticides detected most frequently were diazinon, carbaryl, chlorpyrifos, and malathion. In contrast to similar‐sized agricultural streams, total insecticide concentrations commonly exceeded total herbicide concentrations in these urban streams. In general, the temporal concentration patterns in the urban streams were consistent with the characteristics of the local growing season. The insecticides carbaryl and diazinon exceeded criteria for the protection of aquatic life in many of the urban streams in the spring and summer. When the country as a whole is considered, the estimated mass of herbicides contributed by urban areas to streams is dwarfed by the estimated contribution from agricultural areas, but for insecticides, contributions from urban and agricultural areas may be similar. The results of this study suggest that urban areas should not be overlooked when assessing sources and monitoring the occurrence of pesticides in surface waters.

Url:
DOI: 10.1002/etc.5620190915

Links to Exploration step

ISTEX:33F86C1324ACC8AF78B9161024555EAC865BE998

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<name type="personal">
<namePart type="given">Paul D.</namePart>
<namePart type="family">Capel</namePart>
<affiliation>U.S. Geological Survey, Department of Civil Engineering, University of Minnesota, Minneapolis, Minnesota 55455</affiliation>
<affiliation>U.S. Geological Survey, Department of Civil Engineering, University of Minnesota, Minneapolis, Minnesota 55455</affiliation>
<role>
<roleTerm type="text">author</roleTerm>
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<name type="personal">
<namePart type="given">Steven J.</namePart>
<namePart type="family">Larson</namePart>
<affiliation>U.S. Geological Survey, Department of Civil Engineering, University of Minnesota, Minneapolis, Minnesota 55455</affiliation>
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<publisher>Wiley Periodicals, Inc.</publisher>
<place>
<placeTerm type="text">Hoboken</placeTerm>
</place>
<dateIssued encoding="w3cdtf">2000-09</dateIssued>
<dateCaptured encoding="w3cdtf">1999-06-10</dateCaptured>
<dateValid encoding="w3cdtf">2000-01-21</dateValid>
<copyrightDate encoding="w3cdtf">2000</copyrightDate>
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<languageTerm type="code" authority="rfc3066">en</languageTerm>
<languageTerm type="code" authority="iso639-2b">eng</languageTerm>
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<extent unit="figures">4</extent>
<extent unit="tables">3</extent>
<extent unit="references">33</extent>
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<abstract lang="en">Little is known of the occurrence of pesticides in urban streams compared to streams draining agricultural areas. Water samples from eight urban streams from across the United States were analyzed for 75 pesticides and seven transformation products. For six of the eight urban streams, paired agricultural streams were used for comparisons. The herbicides detected most frequently in the urban streams were prometon, simazine, atrazine, tebuthiuron, and metolachlor, and the insecticides detected most frequently were diazinon, carbaryl, chlorpyrifos, and malathion. In contrast to similar‐sized agricultural streams, total insecticide concentrations commonly exceeded total herbicide concentrations in these urban streams. In general, the temporal concentration patterns in the urban streams were consistent with the characteristics of the local growing season. The insecticides carbaryl and diazinon exceeded criteria for the protection of aquatic life in many of the urban streams in the spring and summer. When the country as a whole is considered, the estimated mass of herbicides contributed by urban areas to streams is dwarfed by the estimated contribution from agricultural areas, but for insecticides, contributions from urban and agricultural areas may be similar. The results of this study suggest that urban areas should not be overlooked when assessing sources and monitoring the occurrence of pesticides in surface waters.</abstract>
<note type="content">*The use of firm, trade, and brand names is for identification purposes only and does not constitute endorsement by the U.S. Geological Survey.</note>
<subject lang="en">
<genre>keywords</genre>
<topic>Pesticide</topic>
<topic>Herbicide</topic>
<topic>Insecticide</topic>
<topic>Urban</topic>
<topic>Stream</topic>
</subject>
<relatedItem type="host">
<titleInfo>
<title>Environmental Toxicology and Chemistry</title>
<subTitle>An International Journal</subTitle>
</titleInfo>
<titleInfo type="abbreviated">
<title>Environmental Toxicology and Chemistry</title>
</titleInfo>
<genre type="journal">journal</genre>
<subject>
<genre>article-category</genre>
<topic>Environmental Toxicology</topic>
</subject>
<identifier type="ISSN">0730-7268</identifier>
<identifier type="eISSN">1552-8618</identifier>
<identifier type="DOI">10.1002/(ISSN)1552-8618</identifier>
<identifier type="PublisherID">ETC</identifier>
<part>
<date>2000</date>
<detail type="volume">
<caption>vol.</caption>
<number>19</number>
</detail>
<detail type="issue">
<caption>no.</caption>
<number>9</number>
</detail>
<extent unit="pages">
<start>2249</start>
<end>2258</end>
<total>10</total>
</extent>
</part>
</relatedItem>
<identifier type="istex">33F86C1324ACC8AF78B9161024555EAC865BE998</identifier>
<identifier type="DOI">10.1002/etc.5620190915</identifier>
<identifier type="ArticleID">ETC5620190915</identifier>
<accessCondition type="use and reproduction" contentType="copyright">Copyright © 2000 SETAC</accessCondition>
<recordInfo>
<recordContentSource>WILEY</recordContentSource>
<recordOrigin>Wiley Periodicals, Inc.</recordOrigin>
</recordInfo>
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