Accumulation and Distribution of Organochlorines and Some Heavy Metals in American Falls Reservoir Fishes, Water, and Sediment

Chlorinated hydrocarbon residues (DDT metabolites, dieldrin, and PCB's) were found in fish flesh samples and sediment in American Falls Reservoir. The concentration and type of chlorinated hydrocarbon varied with fish species and age. The mean value for PCB's in large suckers was 671 Mg/kg. The Environmental Protection Agency has recommended that PCB concentrations in any sample consumed by any bird or mammal be no greater than 500 rg/kg. Chlorinated hydrocarbons were not detected in the water samples