Record Display for the EPA National Library CatalogRECORD NUMBER: 1 OF 5
|Main Title||Bioavailability of Polychlorinated Dibenzo-P-Dioxins and Dibenzofurans from Contaminated Wisconsin River Sediment to Carp.|
|Author||Kuehl, D. W. ; Cook, P. M. ; Batterman, A. R. ; Lothenbach, D. ; Butterworth, B. C. ;|
|CORP Author||Environmental Research Lab.-Duluth, MN.|
|Additional Subjects||Water pollution ; Rivers ; Pesticides ; Chlorine aromatic compounds ; Sediments ; Carp ; Ecology ; Fly ash ; Exposure ; Contaminants ; Ingestion(Biology) ; Wisconsin River ; Furans ; Herbicides ; Oxygen heterocyclic compounds ; Reprints ; Biological accumulation ; PCDD(Polychlorinated dibenzo-p-dioxins) ; PCDF(Polychlorinated dibenzofurans) ; Dioxin ; Dibenzodioxin/tetrachloro ; Furan/Dibenzo tetrachloro|
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.