ACCUMULATION OF PAHs IN BIVALVES (Crassostrea gigas AND Mytilus coruscus) FROM ZHEJIANG COASTAL CHINA AND ASSOCITATED HUMAN HEALTH RISK ASSESSMENT

The paper reported the residual levels of 16 prionity PAHs in two bivalves (Crassostrea gigas and Mytilus coruscus) from the Zhejiang coastal of China were measured by GC, the composition, source, and health edible risk of PAHs were studied. The content of PAHs in the two bivalves ranged from 48.30 to 61.08 ng/g. The main component of PAHs was Phenanthrene (from11.08 to 15.79 ng/g). Comparing with HMW-PAHs, PAHs dominated by LMW-PAHs have higher absorption rates and lower purification rates. In the local coastal environment, the pyrolytic sources were an important role of the PAH pollution. At present, there was no threat to human health by eating shellfish accumulated PAH intakes, but it must be to pay more attention due to PAHs persistence and food chain amplification. The results will provide a reference value for the shellfish living marine environment in the region and guide the Local residents preventing health risks scientifically.