Abstract
A bioaccumulation model of persistent organic pollutants (POPs) in bivalves was developed, in which the exposure routes from water and suspended solid are separated, and the growth of bivalves is incorporated. Constants in the model were calculated with results from the indoor exposure experiment with Corbicula japonica. It was suggested that rate constant of POP loss would mainly control the bioaccumulation factor because absorption efficiency of each OCPs from water was almost 1. It was cleared that bioaccumulation factor of chemicals whose logKow is approximately 6 decreased by a digit with the increase of concentrations of suspended solid from 1.20 mgC/L to 8.52 mgC/L. The applicability of the model to the environment was suggested, because the model replicated the change of OCP concentrations in Corbicula in the environment. In addition, the growth of Mytilus galloprovincialis and growth disruptance due to the high and low water temperature in summer and winter were simulated well. By comparing the results from a previous study, the validity of the model was indicated.
