Polycyclic aromatic hydrocarbons in sediments,pore water and the amphipod Pontoporeia hoyi from Lake Michigan |
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Authors: | Brian J Eadie Peter F Landrum Warren Faust |
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Institution: | National Oceanic and Atmospheric Administration Great Lakes Environmental Research Laboratory 2300 Washtenaw Avenue Ann Arbor, Michigan 48104 USA |
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Abstract: | Polycyclic aromatic hydrocarbon (PAH) concentrations were measured in Pontoporeia hoyi, the most abundant benthic organism in Lake Michigan, and in its associated sediment/pore water matrix. Individual PAH concentrations ranged from 10 ppb to 1 ppm in three sedimentary environments having different levels of organic carbon. Pore water concentrations appeared to be independent of sediment concentrations. P. hoyi bioconcentration factors ranged from approximately 104 to 105 for seven analyzed PAHs. A major fraction of the phenanthrene, fluoranthene and pyrene in P. hoyi appears to come from sediments and pore water, while chrysene and BaP are primarily obtained from water. |
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