Trace metals in sediments of four harbours in Guam
Sediment samples were collected in May June 1997 from four harbors in Guam, with sites selected on the basis of their proximity to potential sources of contamination, and concentrations of trace metals were measured. The analytical methods employed are described. Results showed that silver concentra...
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| Veröffentlicht in: | Marine pollution bulletin 2005-10, Vol.50 (10), p.1133-1141 |
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| creator | Denton, G.R.W. Concepcion, Lucrina P. Wood, H.R. Morrison, R.J. |
| description | Sediment samples were collected in May June 1997 from four harbors in Guam, with sites selected on the basis of their proximity to potential sources of contamination, and concentrations of trace metals were measured. The analytical methods employed are described. Results showed that silver concentrations were consistently below 0.2 mu g/g, and the majority of the arsenic, cadmium, chromium, and nickel concentrations were typical of relatively clean coastal environments. Localized pockets of copper contamination were found at all locations, however, except for Agat Marina, and some mercury enrichment was identified in the Agana Boat Basin inner harbor area, with the highest concentrations found locally at Apra Harbor. The highest mean lead concentration was 96.3 mu g/g, found at a site in Apra Harbor. Tributyltin and other organotin compounds were found selectively at high concentrations, as expected, and the highest zinc levels were found in Apra Harbor off Hotel Wharf. |
| doi_str_mv | 10.1016/j.marpolbul.2005.06.050 |
| format | Article |
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The analytical methods employed are described. Results showed that silver concentrations were consistently below 0.2 mu g/g, and the majority of the arsenic, cadmium, chromium, and nickel concentrations were typical of relatively clean coastal environments. Localized pockets of copper contamination were found at all locations, however, except for Agat Marina, and some mercury enrichment was identified in the Agana Boat Basin inner harbor area, with the highest concentrations found locally at Apra Harbor. The highest mean lead concentration was 96.3 mu g/g, found at a site in Apra Harbor. 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The analytical methods employed are described. Results showed that silver concentrations were consistently below 0.2 mu g/g, and the majority of the arsenic, cadmium, chromium, and nickel concentrations were typical of relatively clean coastal environments. Localized pockets of copper contamination were found at all locations, however, except for Agat Marina, and some mercury enrichment was identified in the Agana Boat Basin inner harbor area, with the highest concentrations found locally at Apra Harbor. The highest mean lead concentration was 96.3 mu g/g, found at a site in Apra Harbor. Tributyltin and other organotin compounds were found selectively at high concentrations, as expected, and the highest zinc levels were found in Apra Harbor off Hotel Wharf.</description><subject>Applied sciences</subject><subject>Data Collection</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Engineering and environment geology. Geothermics</subject><subject>Environmental Monitoring - statistics & numerical data</subject><subject>Environmental Pollutants - analysis</subject><subject>Exact sciences and technology</subject><subject>Geologic Sediments - analysis</subject><subject>Guam</subject><subject>Marine</subject><subject>Metals, Heavy - analysis</subject><subject>Pollution</subject><subject>Pollution sources. 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Measurement results</topic><topic>Pollution, environment geology</topic><topic>Soil and sediments pollution</topic><topic>Spectrophotometry, Atomic</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Denton, G.R.W.</creatorcontrib><creatorcontrib>Concepcion, Lucrina P.</creatorcontrib><creatorcontrib>Wood, H.R.</creatorcontrib><creatorcontrib>Morrison, R.J.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Aqualine</collection><collection>Oceanic Abstracts</collection><collection>Pollution Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Marine pollution bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Denton, G.R.W.</au><au>Concepcion, Lucrina P.</au><au>Wood, H.R.</au><au>Morrison, R.J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Trace metals in sediments of four harbours in Guam</atitle><jtitle>Marine pollution bulletin</jtitle><addtitle>Mar Pollut Bull</addtitle><date>2005-10-01</date><risdate>2005</risdate><volume>50</volume><issue>10</issue><spage>1133</spage><epage>1141</epage><pages>1133-1141</pages><issn>0025-326X</issn><eissn>1879-3363</eissn><coden>MPNBAZ</coden><abstract>Sediment samples were collected in May June 1997 from four harbors in Guam, with sites selected on the basis of their proximity to potential sources of contamination, and concentrations of trace metals were measured. The analytical methods employed are described. Results showed that silver concentrations were consistently below 0.2 mu g/g, and the majority of the arsenic, cadmium, chromium, and nickel concentrations were typical of relatively clean coastal environments. Localized pockets of copper contamination were found at all locations, however, except for Agat Marina, and some mercury enrichment was identified in the Agana Boat Basin inner harbor area, with the highest concentrations found locally at Apra Harbor. The highest mean lead concentration was 96.3 mu g/g, found at a site in Apra Harbor. Tributyltin and other organotin compounds were found selectively at high concentrations, as expected, and the highest zinc levels were found in Apra Harbor off Hotel Wharf.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><pmid>16125205</pmid><doi>10.1016/j.marpolbul.2005.06.050</doi><tpages>9</tpages></addata></record> |
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| subjects | Applied sciences Data Collection Earth sciences Earth, ocean, space Engineering and environment geology. Geothermics Environmental Monitoring - statistics & numerical data Environmental Pollutants - analysis Exact sciences and technology Geologic Sediments - analysis Guam Marine Metals, Heavy - analysis Pollution Pollution sources. Measurement results Pollution, environment geology Soil and sediments pollution Spectrophotometry, Atomic |
| title | Trace metals in sediments of four harbours in Guam |
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