近几年来,人们极为关心沿海城市工业排放对海洋生物的影响。同时,对海产品的痕量金属含量,也引起了足够重视。虽然对生物圈里微量金属的复杂作用还了解的很少,但是,人们很想知道一些经济海产品的含量情况。尽管一些痕量金属对生物维持生理状态的机能和生长发育是重要的,而大浓度的痕量金属对生态系统,尤其是对人是有害的。根据食物链的循环作用,海产品含痕量金属的多少,势必将不同程度地影响人类健康。毛蚶(Arca subcrenate Lischke),亦称毛蛤蜊,是我国北方沿海岸边普遍生长的双壳软体动物。生长面广、量大,其肉鲜美、营养丰富,是广大群众十分喜食的一种海产品。以 In recent years, people are extremely concerned about the impact of industrial emissions from coastal cities on marine life. At the same time, the trace metal content of seafood has also attracted enough attention. Although little is known about the complex effects of trace metals in the biosphere, people are wondering about the content of some of the economically produced seafood. Although some trace metals are important to the organism for its physiological function and growth, large concentrations of trace metals are detrimental to ecosystems, especially to humans. According to the recycling role of the food chain, the amount of trace metals contained in seafood is bound to affect human health to varying degrees. Arca subcrenate Lischke, also known as clam, is a bivalve mollusk commonly grown along the northern coast of China. A wide range of growth, a large quantity, its meat is delicious, nutritious, is the masses are very much like a seafood. To