Decreasing aqueous mercury concentrations to meet the water quality criterion in fish: examining the water-fish relationship in two point-source contaminated streams.
Identifieur interne : 002741 ( Main/Exploration ); précédent : 002740; suivant : 002742Decreasing aqueous mercury concentrations to meet the water quality criterion in fish: examining the water-fish relationship in two point-source contaminated streams.
Auteurs : Teresa J. Mathews [États-Unis] ; George Southworth ; Mark J. Peterson ; W Kelly Roy ; Richard H. Ketelle ; Charles Valentine ; Scott GregorySource :
- The Science of the total environment [ 1879-1026 ] ; 2013.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Mercury, Water Pollutants, Chemical.
- Animals, Environmental Monitoring, Fishes, Water Quality.
Abstract
East Fork Poplar Creek (EF) and White Oak Creek (WC) are two mercury-contaminated streams located on the United States (U.S.) Department of Energy Oak Ridge Reservation in East Tennessee. East Fork Poplar Creek is the larger and more contaminated of the two, with average aqueous mercury (Hg) concentrations exceeding those in reference streams by several hundred-fold. Remedial actions over the past 20 years have decreased aqueous Hg concentrations in EF by 85% (from >1600 ng/L to <400 ng/L). Fish fillet concentrations, however, have not responded to this decrease in aqueous Hg and remain above the U.S. Environmental Protection Agency National Recommended Water Quality Criteria (NRWQC) of 0.3 mg/kg. The lack of correlation between aqueous and fish tissue Hg concentrations in this creek has led to questions regarding the usefulness of target aqueous Hg concentrations and strategies for future remediation efforts. White Oak Creek has a similar contamination history but aqueous Hg concentrations in WC are an order of magnitude lower than in EF. Despite the lower aqueous Hg concentrations (<100 ng/L), fish fillet concentrations in WC have also been above the NRWQC, making the aqueous Hg remediation goal of 200 ng/L in EF seem unlikely to result in an effective decrease in fillet Hg concentrations. Recent monitoring efforts in WC, however, suggest an aqueous total Hg threshold above which Hg bioaccumulation in fish may not respond. This new information could be useful in guiding remedial actions in EF and in other point-source contaminated streams.
DOI: 10.1016/j.scitotenv.2012.11.042
PubMed: 23246664
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Mathews</name><affiliation wicri:level="2"><nlm:affiliation>Oak Ridge National Laboratory, Environmental Sciences Division, 1 Bethel Valley Road, PO Box 2008, Oak Ridge, TN 37831, USA. mathewstj@ornl.gov</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Oak Ridge National Laboratory, Environmental Sciences Division, 1 Bethel Valley Road, PO Box 2008, Oak Ridge, TN 37831</wicri:regionArea><placeName><region type="state">Tennessee</region></placeName></affiliation></author><author><name sortKey="Southworth, George" sort="Southworth, George" uniqKey="Southworth G" first="George" last="Southworth">George Southworth</name></author><author><name sortKey="Peterson, Mark J" sort="Peterson, Mark J" uniqKey="Peterson M" first="Mark J" last="Peterson">Mark J. 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East Fork Poplar Creek is the larger and more contaminated of the two, with average aqueous mercury (Hg) concentrations exceeding those in reference streams by several hundred-fold. Remedial actions over the past 20 years have decreased aqueous Hg concentrations in EF by 85% (from >1600 ng/L to <400 ng/L). Fish fillet concentrations, however, have not responded to this decrease in aqueous Hg and remain above the U.S. Environmental Protection Agency National Recommended Water Quality Criteria (NRWQC) of 0.3 mg/kg. The lack of correlation between aqueous and fish tissue Hg concentrations in this creek has led to questions regarding the usefulness of target aqueous Hg concentrations and strategies for future remediation efforts. White Oak Creek has a similar contamination history but aqueous Hg concentrations in WC are an order of magnitude lower than in EF. Despite the lower aqueous Hg concentrations (<100 ng/L), fish fillet concentrations in WC have also been above the NRWQC, making the aqueous Hg remediation goal of 200 ng/L in EF seem unlikely to result in an effective decrease in fillet Hg concentrations. Recent monitoring efforts in WC, however, suggest an aqueous total Hg threshold above which Hg bioaccumulation in fish may not respond. This new information could be useful in guiding remedial actions in EF and in other point-source contaminated streams.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23246664</PMID><DateCompleted><Year>2013</Year><Month>07</Month><Day>02</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1879-1026</ISSN><JournalIssue CitedMedium="Internet"><Volume>443</Volume><PubDate><Year>2013</Year><Month>Jan</Month><Day>15</Day></PubDate></JournalIssue><Title>The Science of the total environment</Title><ISOAbbreviation>Sci Total Environ</ISOAbbreviation></Journal><ArticleTitle>Decreasing aqueous mercury concentrations to meet the water quality criterion in fish: examining the water-fish relationship in two point-source contaminated streams.</ArticleTitle><Pagination><MedlinePgn>836-43</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.scitotenv.2012.11.042</ELocationID><ELocationID EIdType="pii" ValidYN="Y">S0048-9697(12)01467-2</ELocationID><Abstract><AbstractText>East Fork Poplar Creek (EF) and White Oak Creek (WC) are two mercury-contaminated streams located on the United States (U.S.) Department of Energy Oak Ridge Reservation in East Tennessee. East Fork Poplar Creek is the larger and more contaminated of the two, with average aqueous mercury (Hg) concentrations exceeding those in reference streams by several hundred-fold. Remedial actions over the past 20 years have decreased aqueous Hg concentrations in EF by 85% (from >1600 ng/L to <400 ng/L). Fish fillet concentrations, however, have not responded to this decrease in aqueous Hg and remain above the U.S. Environmental Protection Agency National Recommended Water Quality Criteria (NRWQC) of 0.3 mg/kg. The lack of correlation between aqueous and fish tissue Hg concentrations in this creek has led to questions regarding the usefulness of target aqueous Hg concentrations and strategies for future remediation efforts. White Oak Creek has a similar contamination history but aqueous Hg concentrations in WC are an order of magnitude lower than in EF. Despite the lower aqueous Hg concentrations (<100 ng/L), fish fillet concentrations in WC have also been above the NRWQC, making the aqueous Hg remediation goal of 200 ng/L in EF seem unlikely to result in an effective decrease in fillet Hg concentrations. Recent monitoring efforts in WC, however, suggest an aqueous total Hg threshold above which Hg bioaccumulation in fish may not respond. 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Ketelle</name><name sortKey="Peterson, Mark J" sort="Peterson, Mark J" uniqKey="Peterson M" first="Mark J" last="Peterson">Mark J. Peterson</name><name sortKey="Roy, W Kelly" sort="Roy, W Kelly" uniqKey="Roy W" first="W Kelly" last="Roy">W Kelly Roy</name><name sortKey="Southworth, George" sort="Southworth, George" uniqKey="Southworth G" first="George" last="Southworth">George Southworth</name><name sortKey="Valentine, Charles" sort="Valentine, Charles" uniqKey="Valentine C" first="Charles" last="Valentine">Charles Valentine</name></noCountry><country name="États-Unis"><region name="Tennessee"><name sortKey="Mathews, Teresa J" sort="Mathews, Teresa J" uniqKey="Mathews T" first="Teresa J" last="Mathews">Teresa J. Mathews</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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