南通市近岸海域主要海产品重金属残留监测与评价

对南通市近岸海域捕捞的多获性鱼类6种,甲壳类2种,养殖的贝类7种,藻类2种共17种海产品158份样品重金属残留进行调查分析。采用样品超标率、内梅罗综合污染指数等指标对海产品重金属残留状况进行综合评价,结果表明,南通市近岸海域海产品中人工养殖的贝类、藻类重金属污染大于捕捞的鱼类、甲壳类,重金属及As在海产品中的残留为:Cd、As污染>Pb、Hg、Cu、Cr。

Assessment on the Pollution of Heavy Metals in Seafood from Coast of Nantong

The 158 samples were analyzed for contents of heavy metal involving six kinds of fishes,two kinds of crustacean,seven kinds of aquaculture shellfish,and two kinds of aquaculture algae in along coast of Nantong.The heavy metal residues in those aquatic animals were evaluated by using Nemero Index and rate of over standard limits.The results showed that pollution of heavy metals in aquaculture sea animals was more serious than that in fishing sea animals.Concentrations of Cd and As were higher than that of Pb,Hg,Cu,and Cr in the seafood.