Predicting Bioavailability of Sediment-Associated Organic Contaminants for Diporeia spp. and Oligochaetes
Biota-sediment accumulation factors (BSAF) were calculated for Diporeia spp. and oligochaete worms exposed to polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) from field-collected sediment. These data were compared to the contaminant fraction extracted from sediment with...
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| Veröffentlicht in: | Environmental science & technology 2007-09, Vol.41 (18), p.6442-6447 |
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| creator | Landrum, Peter F Robinson, Sander D Gossiaux, Duane C You, Jing Lydy, Michael J Mitra, Siddhartha ten Hulscher, Theodora E. M |
| description | Biota-sediment accumulation factors (BSAF) were calculated for Diporeia spp. and oligochaete worms exposed to polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) from field-collected sediment. These data were compared to the contaminant fraction extracted from sediment with Tenax resin using a 24 h extraction. A previous laboratory study suggested a linear relationship between log BSAF and the contaminant fraction rapidly desorbed from sediment. However, the BSAF data in our study did not fit this relationship. Better predictive regressions for both PCBs and PAHs were found when the log of the lipid-normalized organism contaminant concentrations were plotted against the log of the Tenax-extracted organic carbon-normalized sediment contaminant concentration. Regression lines for the two species had the same slope, but the Diporeia intercept was 2.3 times larger. When adjusted for a 6 h Tenax extraction, based on a regression between 6 and 24 h Tenax extractions, data from this study and two other studies that included multiple oligochaete species fit a single predictive regression. The exception included some PAHs that fell below the regression line. Thus, a single relationship generally predicted bioaccumulation across sediments, compound classes, oligochaete species, and among laboratories. |
| doi_str_mv | 10.1021/es0706807 |
| format | Article |
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M</creator><creatorcontrib>Landrum, Peter F ; Robinson, Sander D ; Gossiaux, Duane C ; You, Jing ; Lydy, Michael J ; Mitra, Siddhartha ; ten Hulscher, Theodora E. M</creatorcontrib><description>Biota-sediment accumulation factors (BSAF) were calculated for Diporeia spp. and oligochaete worms exposed to polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) from field-collected sediment. These data were compared to the contaminant fraction extracted from sediment with Tenax resin using a 24 h extraction. A previous laboratory study suggested a linear relationship between log BSAF and the contaminant fraction rapidly desorbed from sediment. However, the BSAF data in our study did not fit this relationship. Better predictive regressions for both PCBs and PAHs were found when the log of the lipid-normalized organism contaminant concentrations were plotted against the log of the Tenax-extracted organic carbon-normalized sediment contaminant concentration. Regression lines for the two species had the same slope, but the Diporeia intercept was 2.3 times larger. When adjusted for a 6 h Tenax extraction, based on a regression between 6 and 24 h Tenax extractions, data from this study and two other studies that included multiple oligochaete species fit a single predictive regression. The exception included some PAHs that fell below the regression line. Thus, a single relationship generally predicted bioaccumulation across sediments, compound classes, oligochaete species, and among laboratories.</description><identifier>ISSN: 0013-936X</identifier><identifier>EISSN: 1520-5851</identifier><identifier>DOI: 10.1021/es0706807</identifier><identifier>PMID: 17948791</identifier><identifier>CODEN: ESTHAG</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Amphipoda - metabolism ; Animal, plant and microbial ecology ; Animals ; Annelida and closely related phyla: sipuncula. Echiura. Nemertinea ; Applied ecology ; Biological and medical sciences ; Biological Availability ; Contaminated sediments ; Diporeia ; Ecotoxicology, biological effects of pollution ; Extraction processes ; Fundamental and applied biological sciences. 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M</creatorcontrib><title>Predicting Bioavailability of Sediment-Associated Organic Contaminants for Diporeia spp. and Oligochaetes</title><title>Environmental science & technology</title><addtitle>Environ. Sci. Technol</addtitle><description>Biota-sediment accumulation factors (BSAF) were calculated for Diporeia spp. and oligochaete worms exposed to polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) from field-collected sediment. These data were compared to the contaminant fraction extracted from sediment with Tenax resin using a 24 h extraction. A previous laboratory study suggested a linear relationship between log BSAF and the contaminant fraction rapidly desorbed from sediment. However, the BSAF data in our study did not fit this relationship. Better predictive regressions for both PCBs and PAHs were found when the log of the lipid-normalized organism contaminant concentrations were plotted against the log of the Tenax-extracted organic carbon-normalized sediment contaminant concentration. Regression lines for the two species had the same slope, but the Diporeia intercept was 2.3 times larger. When adjusted for a 6 h Tenax extraction, based on a regression between 6 and 24 h Tenax extractions, data from this study and two other studies that included multiple oligochaete species fit a single predictive regression. The exception included some PAHs that fell below the regression line. Thus, a single relationship generally predicted bioaccumulation across sediments, compound classes, oligochaete species, and among laboratories.</description><subject>Amphipoda - metabolism</subject><subject>Animal, plant and microbial ecology</subject><subject>Animals</subject><subject>Annelida and closely related phyla: sipuncula. Echiura. Nemertinea</subject><subject>Applied ecology</subject><subject>Biological and medical sciences</subject><subject>Biological Availability</subject><subject>Contaminated sediments</subject><subject>Diporeia</subject><subject>Ecotoxicology, biological effects of pollution</subject><subject>Extraction processes</subject><subject>Fundamental and applied biological sciences. 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Psychology</topic><topic>General aspects</topic><topic>Geologic Sediments - chemistry</topic><topic>Invertebrates</topic><topic>Laboratories</topic><topic>Oligochaeta</topic><topic>Oligochaeta - metabolism</topic><topic>PCB</topic><topic>Pollutants</topic><topic>Polychlorinated biphenyls</topic><topic>Polychlorinated Biphenyls - metabolism</topic><topic>Polychlorinated Biphenyls - pharmacokinetics</topic><topic>Polycyclic Aromatic Hydrocarbons - metabolism</topic><topic>Polycyclic Aromatic Hydrocarbons - pharmacokinetics</topic><topic>Regression analysis</topic><topic>Sediments</topic><topic>Worms</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Landrum, Peter F</creatorcontrib><creatorcontrib>Robinson, Sander D</creatorcontrib><creatorcontrib>Gossiaux, Duane C</creatorcontrib><creatorcontrib>You, Jing</creatorcontrib><creatorcontrib>Lydy, Michael J</creatorcontrib><creatorcontrib>Mitra, Siddhartha</creatorcontrib><creatorcontrib>ten Hulscher, Theodora E. 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M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Predicting Bioavailability of Sediment-Associated Organic Contaminants for Diporeia spp. and Oligochaetes</atitle><jtitle>Environmental science & technology</jtitle><addtitle>Environ. Sci. Technol</addtitle><date>2007-09-15</date><risdate>2007</risdate><volume>41</volume><issue>18</issue><spage>6442</spage><epage>6447</epage><pages>6442-6447</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><coden>ESTHAG</coden><abstract>Biota-sediment accumulation factors (BSAF) were calculated for Diporeia spp. and oligochaete worms exposed to polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) from field-collected sediment. These data were compared to the contaminant fraction extracted from sediment with Tenax resin using a 24 h extraction. A previous laboratory study suggested a linear relationship between log BSAF and the contaminant fraction rapidly desorbed from sediment. However, the BSAF data in our study did not fit this relationship. Better predictive regressions for both PCBs and PAHs were found when the log of the lipid-normalized organism contaminant concentrations were plotted against the log of the Tenax-extracted organic carbon-normalized sediment contaminant concentration. Regression lines for the two species had the same slope, but the Diporeia intercept was 2.3 times larger. When adjusted for a 6 h Tenax extraction, based on a regression between 6 and 24 h Tenax extractions, data from this study and two other studies that included multiple oligochaete species fit a single predictive regression. The exception included some PAHs that fell below the regression line. Thus, a single relationship generally predicted bioaccumulation across sediments, compound classes, oligochaete species, and among laboratories.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>17948791</pmid><doi>10.1021/es0706807</doi><tpages>6</tpages></addata></record> |
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| source | ACS Publications; MEDLINE |
| subjects | Amphipoda - metabolism Animal, plant and microbial ecology Animals Annelida and closely related phyla: sipuncula. Echiura. Nemertinea Applied ecology Biological and medical sciences Biological Availability Contaminated sediments Diporeia Ecotoxicology, biological effects of pollution Extraction processes Fundamental and applied biological sciences. Psychology General aspects Geologic Sediments - chemistry Invertebrates Laboratories Oligochaeta Oligochaeta - metabolism PCB Pollutants Polychlorinated biphenyls Polychlorinated Biphenyls - metabolism Polychlorinated Biphenyls - pharmacokinetics Polycyclic Aromatic Hydrocarbons - metabolism Polycyclic Aromatic Hydrocarbons - pharmacokinetics Regression analysis Sediments Worms |
| title | Predicting Bioavailability of Sediment-Associated Organic Contaminants for Diporeia spp. and Oligochaetes |
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