根据2008年连云港海州湾碱厂海域调查资料,分析了连云港近岸海域海水、表层沉积物及底栖动物体中重金属的含量和富集情况。结果表明,海州湾水体中的重金属含量都低于渔业水质标准,海洋沉积物质量良好,海州湾底栖动物体内Zn,Cu,Pb,Cd,Ni,Hg的含量低于海洋生物污染评价标准,泥螺体内As含量超出标准,调查生物富含Cr。生物对不同重金属有不同的富集能力。
Based on the data obtained from Haizhou Bay of Lianyungang in 2008, the concentrations and distributions of heavy metals in surface water, surface sediments and benthos were studied. Results showed that the concentrations of heavy metals in water were lower than the standard ones, revealing that the sediment quality was good. The contents of Zn, Cu, Pb, Cd, Ni and Hg in benthos were lower than the assessment standards, but Bullacta escarata was polluted by As, and all animals were polluted by Cr. The accumulation capacities of organisms differed in accordance with the difference of heavy metals.