Abstract
ABSTRACT The concentrations of cadmium (Cd), strontium (Sr) and uranium (U) were determined in whole eviscerated rainbow trout (Salmo gairdneri), trout liver, and water samples collected from a small stream receiving uranium mine discharge in northeast Washington state during high and low flow periods. Average water concentrations of Cd, Sr, and U downstream of the mine discharge increased 15, 5, and 100-fold, respectively. Cadmium levels increased in fish and liver samples during both sample periods. The weighted average fish concentration was eleven times higher than that for the control stream. There was no increase in fish and liver Sr levels below the mine discharge during either sample period. Increases in uranium concentrations were detected only in the fish where the weighted average low flow value was 15 times higher than the control stream value.
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