Decadal Trends of Silver and Lead Contamination in San Francisco Bay Surface Waters
Over the past decade, San Francisco Bay surface waters have remained enriched with dissolved (
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| Veröffentlicht in: | Environmental science & technology 2002-06, Vol.36 (11), p.2379-2386 |
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| container_title | Environmental science & technology |
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| creator | Squire, Sharon Scelfo, Genine M Revenaugh, Justin Flegal, A. Russell |
| description | Over the past decade, San Francisco Bay surface waters have remained enriched with dissolved ( |
| doi_str_mv | 10.1021/es015746r |
| format | Article |
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Russell</creator><creatorcontrib>Squire, Sharon ; Scelfo, Genine M ; Revenaugh, Justin ; Flegal, A. Russell</creatorcontrib><description>Over the past decade, San Francisco Bay surface waters have remained enriched with dissolved (<0.45 μm) silver and lead concentrations (decadal means of 5.7 ng kg-1 Ag[filtered] and 31 ng kg-1 Pb[filtered]) compared with those (0.26 ng kg-1 Ag[filtered] and 2.7 ng kg-1 Pb[filtered]) of adjacent oceanic surface waters of the northeast Pacific, despite efforts to reduce pollutant loadings to the Bay during that period. While time series models show that there has been a 40% decline in total lead concentrations in the southern reach of the estuarine system between 1989 and 1999, the filtered lead fraction has not changed significantly during that time. That persistence is attributed to (i) the ongoing input from previous atmospheric depositions and industrial lead to its drainage basin, which are slowly being advected into the estuary and (ii) the internal recycling of lead between the surface sediments and the water column within the Bay. In contrast, both filtered and total silver concentrations in the southern reach have declined by 70% and 40%, respectively, within the past decade. These temporal declines are attributed to a 2-fold decrease in silver loadings from publicly owned treatment works and a comparable decline in the silver concentration of surficial sediments within that region during the past decade. In the northern reach, silver and lead concentrations have remained essentially constant between 1989 and 1999, reflecting invariable anthropogenic input of these elements to this embayment over that decade.</description><identifier>ISSN: 0013-936X</identifier><identifier>EISSN: 1520-5851</identifier><identifier>DOI: 10.1021/es015746r</identifier><identifier>PMID: 12075793</identifier><identifier>CODEN: ESTHAG</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Applied sciences ; California ; Contamination ; Deposition ; Dissolution ; Drainage basins ; Earth sciences ; Earth, ocean, space ; Ecosystem ; Engineering and environment geology. Geothermics ; Enrichment ; Environment ; Estuaries ; Exact sciences and technology ; Geologic Sediments - chemistry ; Industrial Waste ; Lead ; Lead (metal) ; Lead - analysis ; Marine ; Natural water pollution ; Pollutants ; Pollution ; Pollution, environment geology ; Recycling ; Seawaters, estuaries ; Sediments ; Silver ; Silver - analysis ; Solubility ; USA, California, San Francisco Bay ; Water Pollutants - analysis ; Water treatment and pollution</subject><ispartof>Environmental science & technology, 2002-06, Vol.36 (11), p.2379-2386</ispartof><rights>Copyright © 2002 American Chemical Society</rights><rights>2002 INIST-CNRS</rights><rights>Copyright American Chemical Society Jun 1, 2002</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a565t-9eb5fb15e48238bba50520cdd39b0ac7cc90009ce11cce984a979a9fbf33302e3</citedby><cites>FETCH-LOGICAL-a565t-9eb5fb15e48238bba50520cdd39b0ac7cc90009ce11cce984a979a9fbf33302e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/es015746r$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/es015746r$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,780,784,2763,27075,27923,27924,56737,56787</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14184737$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12075793$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Squire, Sharon</creatorcontrib><creatorcontrib>Scelfo, Genine M</creatorcontrib><creatorcontrib>Revenaugh, Justin</creatorcontrib><creatorcontrib>Flegal, A. Russell</creatorcontrib><title>Decadal Trends of Silver and Lead Contamination in San Francisco Bay Surface Waters</title><title>Environmental science & technology</title><addtitle>Environ. Sci. Technol</addtitle><description>Over the past decade, San Francisco Bay surface waters have remained enriched with dissolved (<0.45 μm) silver and lead concentrations (decadal means of 5.7 ng kg-1 Ag[filtered] and 31 ng kg-1 Pb[filtered]) compared with those (0.26 ng kg-1 Ag[filtered] and 2.7 ng kg-1 Pb[filtered]) of adjacent oceanic surface waters of the northeast Pacific, despite efforts to reduce pollutant loadings to the Bay during that period. While time series models show that there has been a 40% decline in total lead concentrations in the southern reach of the estuarine system between 1989 and 1999, the filtered lead fraction has not changed significantly during that time. That persistence is attributed to (i) the ongoing input from previous atmospheric depositions and industrial lead to its drainage basin, which are slowly being advected into the estuary and (ii) the internal recycling of lead between the surface sediments and the water column within the Bay. In contrast, both filtered and total silver concentrations in the southern reach have declined by 70% and 40%, respectively, within the past decade. These temporal declines are attributed to a 2-fold decrease in silver loadings from publicly owned treatment works and a comparable decline in the silver concentration of surficial sediments within that region during the past decade. In the northern reach, silver and lead concentrations have remained essentially constant between 1989 and 1999, reflecting invariable anthropogenic input of these elements to this embayment over that decade.</description><subject>Applied sciences</subject><subject>California</subject><subject>Contamination</subject><subject>Deposition</subject><subject>Dissolution</subject><subject>Drainage basins</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Ecosystem</subject><subject>Engineering and environment geology. Geothermics</subject><subject>Enrichment</subject><subject>Environment</subject><subject>Estuaries</subject><subject>Exact sciences and technology</subject><subject>Geologic Sediments - chemistry</subject><subject>Industrial Waste</subject><subject>Lead</subject><subject>Lead (metal)</subject><subject>Lead - analysis</subject><subject>Marine</subject><subject>Natural water pollution</subject><subject>Pollutants</subject><subject>Pollution</subject><subject>Pollution, environment geology</subject><subject>Recycling</subject><subject>Seawaters, estuaries</subject><subject>Sediments</subject><subject>Silver</subject><subject>Silver - analysis</subject><subject>Solubility</subject><subject>USA, California, San Francisco Bay</subject><subject>Water Pollutants - analysis</subject><subject>Water treatment and pollution</subject><issn>0013-936X</issn><issn>1520-5851</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU9P20AQxVcIBGnaA18ArZBaiYPbXa_X9h4hLX9E1FZyUCIuq_F6LBmcddi1q_Ltu5AokeiB0xzmpzdv3iPkmLOvnMX8G3rGZZakbo-MuIxZJHPJ98mIMS4iJdLFEfng_QNjLBYsPyRHPGaZzJQYkeI7GqigpTOHtvK0q2nRtH_QUbAVnSJUdNLZHpaNhb7pLG0sLcDSSwfWNN509AKeaTG4GgzSOfTo_EdyUEPr8dNmjsnd5Y_Z5Dqa_rq6mZxPI5Cp7COFpaxLLjHJY5GXJUgWvJuqEqpkYDJjVHCsDHJuDKo8AZUpUHVZCyFYjGJMvqx1V657GtD3ehkcYduCxW7wOs5COnkq3wV5yoVKBHsfTNI4SUOKY3L6BnzoBmfDtzpEzKVQr2fP1pBxnfcOa71yzRLcs-ZMvxSnt8UF9mQjOJRLrHbkpqkAfN4A4A209Tr_HZfwPMlEFrhozTW-x7_bPbhHnYa91LPfhb69v50v8vm9_rnTBeN3T_xv8B9BbLlc</recordid><startdate>20020601</startdate><enddate>20020601</enddate><creator>Squire, Sharon</creator><creator>Scelfo, Genine M</creator><creator>Revenaugh, Justin</creator><creator>Flegal, A. Russell</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>7ST</scope><scope>7T7</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>SOI</scope><scope>7QH</scope><scope>7TN</scope><scope>7TV</scope><scope>7UA</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>7SU</scope><scope>KR7</scope></search><sort><creationdate>20020601</creationdate><title>Decadal Trends of Silver and Lead Contamination in San Francisco Bay Surface Waters</title><author>Squire, Sharon ; Scelfo, Genine M ; Revenaugh, Justin ; Flegal, A. Russell</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a565t-9eb5fb15e48238bba50520cdd39b0ac7cc90009ce11cce984a979a9fbf33302e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Applied sciences</topic><topic>California</topic><topic>Contamination</topic><topic>Deposition</topic><topic>Dissolution</topic><topic>Drainage basins</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Ecosystem</topic><topic>Engineering and environment geology. Geothermics</topic><topic>Enrichment</topic><topic>Environment</topic><topic>Estuaries</topic><topic>Exact sciences and technology</topic><topic>Geologic Sediments - chemistry</topic><topic>Industrial Waste</topic><topic>Lead</topic><topic>Lead (metal)</topic><topic>Lead - analysis</topic><topic>Marine</topic><topic>Natural water pollution</topic><topic>Pollutants</topic><topic>Pollution</topic><topic>Pollution, environment geology</topic><topic>Recycling</topic><topic>Seawaters, estuaries</topic><topic>Sediments</topic><topic>Silver</topic><topic>Silver - analysis</topic><topic>Solubility</topic><topic>USA, California, San Francisco Bay</topic><topic>Water Pollutants - analysis</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Squire, Sharon</creatorcontrib><creatorcontrib>Scelfo, Genine M</creatorcontrib><creatorcontrib>Revenaugh, Justin</creatorcontrib><creatorcontrib>Flegal, A. 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Russell</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Decadal Trends of Silver and Lead Contamination in San Francisco Bay Surface Waters</atitle><jtitle>Environmental science & technology</jtitle><addtitle>Environ. Sci. Technol</addtitle><date>2002-06-01</date><risdate>2002</risdate><volume>36</volume><issue>11</issue><spage>2379</spage><epage>2386</epage><pages>2379-2386</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><coden>ESTHAG</coden><abstract>Over the past decade, San Francisco Bay surface waters have remained enriched with dissolved (<0.45 μm) silver and lead concentrations (decadal means of 5.7 ng kg-1 Ag[filtered] and 31 ng kg-1 Pb[filtered]) compared with those (0.26 ng kg-1 Ag[filtered] and 2.7 ng kg-1 Pb[filtered]) of adjacent oceanic surface waters of the northeast Pacific, despite efforts to reduce pollutant loadings to the Bay during that period. While time series models show that there has been a 40% decline in total lead concentrations in the southern reach of the estuarine system between 1989 and 1999, the filtered lead fraction has not changed significantly during that time. That persistence is attributed to (i) the ongoing input from previous atmospheric depositions and industrial lead to its drainage basin, which are slowly being advected into the estuary and (ii) the internal recycling of lead between the surface sediments and the water column within the Bay. In contrast, both filtered and total silver concentrations in the southern reach have declined by 70% and 40%, respectively, within the past decade. These temporal declines are attributed to a 2-fold decrease in silver loadings from publicly owned treatment works and a comparable decline in the silver concentration of surficial sediments within that region during the past decade. In the northern reach, silver and lead concentrations have remained essentially constant between 1989 and 1999, reflecting invariable anthropogenic input of these elements to this embayment over that decade.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>12075793</pmid><doi>10.1021/es015746r</doi><tpages>8</tpages></addata></record> |
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| ispartof | Environmental science & technology, 2002-06, Vol.36 (11), p.2379-2386 |
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| subjects | Applied sciences California Contamination Deposition Dissolution Drainage basins Earth sciences Earth, ocean, space Ecosystem Engineering and environment geology. Geothermics Enrichment Environment Estuaries Exact sciences and technology Geologic Sediments - chemistry Industrial Waste Lead Lead (metal) Lead - analysis Marine Natural water pollution Pollutants Pollution Pollution, environment geology Recycling Seawaters, estuaries Sediments Silver Silver - analysis Solubility USA, California, San Francisco Bay Water Pollutants - analysis Water treatment and pollution |
| title | Decadal Trends of Silver and Lead Contamination in San Francisco Bay Surface Waters |
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