随着经济的发展,人们生活水平的提高,水产品的消费量也不断增加。人口的增长以及都市化的发展,导致水产养殖环境逐渐恶化,使水产品中重金属超标的现象日益突出。铅、镉、铬等重金属对人体各系统、脏器有毒性作用,并被国际癌症研究机构分别列为3级、3级、1级致癌危险性物质〔1〕 With economic development, people’s living standards improve, consumption of aquatic products also continue to increase. Population growth and urbanization have led to a gradual deterioration of the aquaculture environment and an over-emphasis on heavy metals in aquatic products. Lead, cadmium, chromium and other heavy metals on human systems, organs toxic effects, and by the International Agency for Research on Cancer were classified as grade 3, grade 3, a carcinogenic substances [1]