Abstract

Uptake and depuration rate constants, and bioconcentration factors (BCFs) of pesticides in shellfish ( Corbicula leana, Corbicula japonica and Cipangopludina chinensis) were estimated from both field and laboratory experiments. The simulation of pesticide concentrations in shellfish in the field using the rate constants obtained from the laboratory experiments and the actual concentrations of pesticides in the river water, roughly predicted the concentration of pesticides in shellfish in the field. The interspecies difference found in the BCF values in the field experiment could possibly be explained by the faster uptake rate and slower depuration rate of Corbicula leana than those of Cipangopludina chinensis.

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