Concentration and Assessment of Heavy Metals in Benthos in Lianyungang Area

Based on the monitoring data obtained from Haizhou Bay of Lianyungang in 2008, the concentrations and distributions of the heavy metals in surface water, surface sediments and benthos were studied. The results showed that the concentrations of heavy metals in water were lower than standard, the sediment quality was good. The contents of Zn, Cu, Pb, Cd, Ni, and Hg in benthos were lower than assessment standards, Bullacta exarata was polluted by As, all animals were polluted by Cr. Organisms possessed different accumulation capacities for different heavy metals.