胶州湾经济生物体内的重金属含量

于1987年和1988年春、秋两季分析测定了胶州湾24种经济生物体内的重金属铜、铅、镉、锌和铬含量。结果表明,受周围污染环境的影响,该湾经济生物体内的锌、铬、铅和铜含量明显高于受排污影响较小的黄海中部海域同种生物体内的含量;不同种类、体长和不同季节生物体内的重金属含量都有较显著差异。本调查还采用在湾内广泛分布且游动能力差的菲律宾蛤仔探讨了不同地点生物体内重金属含量,未发现潮下带蛤仔与距污染源远近有明显关系。鉴于该湾生物体内重金属含量均低于“海洋生物污染评价标准”和“人体消费标准”,可以认为,胶州湾经济生物体的可食部分对人类食用还是安全的。

HEAVY METAL CONTENTS IN ECONOMICALLY IMPORTANT ORGANISMS OF JIAOZHOU BAY

Cu, Zn, Pb, Cd and Cr contents were determined in 24 species of marine organisms of Jiaozhou Bay. Results showed that Zn, Cr, Pb and Cu contents in some marine organisms in Jiaozhou Bay were higher than those in the middle Yellow Sea which were less polluted. But no evident difference of heavy metal contents was found in the clams(Ruditapes philippinarum ) distributed in different places, these marine organisms were safe to human consumption because heavy metal contents in those organisms are below the assessment criterion.