Bioavailability of 2,3,7,8-tetrachlorodibenzo-p-dioxin from municipal incinerator fly ash to freshwater fish |
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| Authors: | Douglas W. Kuehl Philip M. Cook Allan R. Batterman Douglas B. Lothenbach Brian C. Butterworth Darcy L. Johnson |
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| Affiliation: | U.S. Environmental Protection Agency Environmental Research Laboratory-Duluth 6201 Congdon Boulevard Duluth, Minnesota 55804 USA;Center for Lake Superior Environmental Studies University of Wisconsin-Superior Superior, Wisconsin 54880 USA |
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| Abstract: | The bioavailability of 2,3,7,8-TCDD from municipal incinerator fly ash to freshwater fish was determined. It was observed that carp exposed to fly ash containing all 22 TCDD isomers, or the solvent extract of the fly ash, retain only 2,3,7,8-TCDD. Exposures with fly ash appears to follow a dose response relationship for bioconcentration, however, the bioavailability of 2,3,7,8-TCDD was not directly related to the level of 2,3,7,8-TCDD in fly ash for two fly ash samples studied. |
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