【摘要】 对北方海洋生态站生态监测海域几种贝类、鱼类体内Hg、Cd、Pb、As、Cu残留量及季节变化进行了调查、分析,并且评价了这些经济动物的生物质量。结果表明:贝类Hg的含量(×10-6湿重以下同)为未检出～0.026,As为0.330～1.361,Cu为0.67～14.04,Pb为0.022～1.02,Cd为0.086～3.90;鱼类的Hg含量为0.001～0.017、As为0.672～0.998、Cu为1 35～5.90、Pb为0.016～0.57、Cd为0.006～0.45。扁玉螺体内重金属残留量季节变化明显;生物体内Hg和Cu的含量均符合中华人民共和国国家标准中关于食品中限量卫生标准,其他重金属含量均有超标现象,Cd最严重。更多还原

【Abstract】 The residue levels of Hg,Cd,Pb,As and Cu in the commercial important animals from the Northern Eco-station were investigated. The seasonal changes of residual levels were also analyzed and the organism qualities were assessed too. The results showed that the ranges of the heavy metals in the seashells were Hg: undetected to 0.026×10^-6 （wet weight）, As: 0.330 to 1.361×10^-6 （wet weight）, Pb: 0.022 to 1.02×10^-6 （wet weight）, Cd: 0.086 to 3.90×10^-6（wet weight）. The ranges of Hg, As, Cu, Pb and Cd in fish were 0.001 to 0.017, 0.672 to 0.998, 135 to 5.90, 0.016 to 0.57 and 0.006 to 0.45×10^-6 （wet weight）, respectively. The contents of Hg and Cu in all samples were below the national food criteria. As, Pb and Cd contents in some samples were higher than the criteria; almost all samples contained higher Cd residue levels compared with the criteria.更多还原