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Uptake and body distribution of chlorinated phenolics in the freshwater mussel, Anodonta anatina L

Journal Article · · Ecotoxicology and Environmental Safety; (USA)
Freshwater mussels (Anodonta anatina L.) were exposed to ({sup 14}C)pentachlorophenol (PCP) and ({sup 14}C)3,4,5-trichloroguaiacol (CG-3) under laboratory conditions. Uptake and body distribution in mussels as well as total water-soluble metabolites of chlorophenolics in hemolymph and digestive gland were measured. The time course of chlorophenolic accumulation in the mussel soft tissue was followed by analyzing the decrease in the radioactivity in exposure water. The bioconcentration factors (BCFs, activity in animal per activity in water) were measured at steady state for the soft tissue homogenate and separate organs. Both chlorinated phenolics reached a steady-state concentration during the first 24 hr. BCFs in soft tissue ranged from 145 to 342 for PCP and 34 to 125 for CG-3. Accumulations by the digestive gland (hepatopancreas) and kidneys were 2 and 1.3 times greater, respectively, than the average accumulation by the whole soft tissue. The water-soluble fraction of PCP (1-8%) and CG-3 (0.4-2.9%) in separate organs implied only a minor metabolism of chlorophenolics in this animal.
OSTI ID:
5546097
Journal Information:
Ecotoxicology and Environmental Safety; (USA), Journal Name: Ecotoxicology and Environmental Safety; (USA) Vol. 20:3; ISSN EESAD; ISSN 0147-6513
Country of Publication:
United States
Language:
English