Benthons have not been polluted by heavy metals, but the concentration of Cu and Zn in crustacea and mollusc has potential serious accumulation problems.

• 利用2000年3月大亚湾环境现状调查的资料,对大亚湾底栖生物体中残毒量进行现状与历史资料比较分析,评价底栖生物受重金属污染的程度及其食用质量。