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BIOAVAILABILITY OF POLYCHLORINATED DIBENZO-P-DIOXINS AND DIBENZOFURANS FROM CONTAMINATED WISCONSIN RIVER SEDIMENT TO CARP
Citation:
Kuehl, D., P. Cook, A. Batterman, D. Lothenbach, AND B. Butterworth. BIOAVAILABILITY OF POLYCHLORINATED DIBENZO-P-DIOXINS AND DIBENZOFURANS FROM CONTAMINATED WISCONSIN RIVER SEDIMENT TO CARP. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-87/035 (NTIS PB87203337), 1987.
Description:
The bioavailability of 2,3,7,8-TCDD from sediment to freshwater fish was studied in laboratory exposures. Carp (10g) exposed to Wisconsin River sediment (39pg/g) for 55 days accumulated 7.5 pg/g. Maintaining exposured fish in clean water for an additional 205 days resulted in depuration of 32-34% TCDD. These values compare to field data where sediments ranged from 30-200 pg/g and 1.5 kg carp (70 pg/g) depurated 55% in 325 days. Analysis of sediment, laboratory exposed fish, and Wisconsin River fish for other PCDDs and PCDFs showed residues of 2,3,7 and 8 substituted congeners selectively enriched.