福建沿海中北部主要贝类养殖区沉积物、贝类质量的初步分析和评价

2009年8至9月对福建沿海中北部主要贝类养殖区沉积物及贝类质量状况进行了全面的调查。结果表明,沉积物中有机碳、石油类、Hg、Cd、Pb、As、HCHs、PCBs含量均符合海洋沉积物质量第一类标准,部分海域硫化物、DDTs含量超标,整体上贝类养殖环境质量良好。贝类体内Hg、As、Pb、HCHs、PCBs、DDTs含量均符合无公害水产品质量安全要求,仅有小部分站点贝类体内镉含量超标,但贝类受石油烃污染较严重。

Preliminary analysis and evaluation on the environment of shellfish culture area andthe quality of shellfishes in north-central coast of Fujian Province

A full scale investigation on environment of shellfish culture area and the quality of shellfishes in north-central coast of Fujian province had been taken from August to September in 2009.According to monitoring and analyzing survey on surface sediments and shellfishes,the results showed that the concentrations of organic carbon,petroleum-related pollutants,Hg,Cd,Pb,As,HCHs and PCBs in surface sediments were below marine surface sediments quality criteria of GradeⅠ,but sulphide and DDTs in some sampling sites were found beyond the limit of GradeⅠ.In gerenal,the environment quality of shellfish-culture areas in north-central coast of Fujian province was at a regular level.The contents of Hg,As,Pb,HCHs,PCBs and DDTs fitted well into safety requirements for non-environmental pollution aquatic products,and Cd in a small part of sites exceeded the criteria.The shellfishes were seriously polluted by petroleum hydrocarbon.