深沪湾海水、沉积物及贝类体内重金属的含量与评价

利用1998年5月和9月深沪湾海域环境调查资料，着重分析了深炉湾海水、表层沉积物及褶牡蛎和菲律宾蛤仔体内重金属的含量及分布，结果表明：深沪湾海水中Cu、Pb、Cd、Zn、Hg等含量均低于渔业水质标准，而表层沉积物的Pb、Zn含量大部分已超标，近岸水域海水和表层沉积物中Cu、Pb、Cd、Zn的含量明显高于湾中心水域，湾顶水域高于湾口水域。Hg的含量是湾南部水域高于北部水域。文中还根据全国海岸带污染综合调查专业组制定的海洋生物污染评价标准，对2种贝类的重金属污染程度进行评价，结果深沪湾的养殖贝类体内的重金属含量均未超标。

Assessment on the Contents of the Heavy Metals in Sea Water, Surface Sediments and Cultured Shellfishes from Shenhu Bay, Fujian Province

Besed on the investigate data of fishery environment obtained from the Shenhu Bay waters, Fujian Province in May and September 1998, the concentrations and distributions of heavy metals in sea water, surface sediments , Ostred plicatula and Ruditapes philippinarum were analyzed. The results could be summarized as follows: The contents of Cu,Pb,Cd,Zn,Hg in sea water at the Shenhu Bay are all below the fisheries water quality standard, but the sediments are mostly polluted with Pb and Zn. Contents of Cu,Pb,Cd,Zn in sea water and surface sediments from neritic water of Shenhu Bay was much higher than that in centre water of Bay, it was much higher the Bay head water than that in Bay estuary water. The contents of 1 Ig from Bay South water was much higher then that in Bay North water. In addition, according to the values of the pollution evaluation Standard for Marine Organisms set by the Technical Group of National Coastal Zone Pollution Comprehensive Survey of China, the pollution level of the two species of shellfishes by heavy metals has been assessed. The results show that the concentrations of heavy metals in the shellfishes at the Shenhu Bay are all below the standards,