海口湾贝类重金属质量含量测定及其风险评价

Journal of Tropical Biology(2013)

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Abstract
为了解海口湾贝类重金属的污染状况,对海口湾的牡蛎、文蛤体中重金属质量含量进行了测定。结果表明:海口湾牡蛎体中Zn,Cu,Cd,Pb,Cr重金属的质量含量分别为101.750,161.751,0.686,1.200,2.993mg·kg-1。文蛤体中Zn,Cu,Cd,Pb,Cr重金属的质量含量分别为14.060,1.155,0.071,0.145,0.225 mg·kg-1。文蛤斧足、外套膜和闭壳肌、内脏团中Zn,Cu,Cd,Pb,Cr等5种重金属的质量含量均呈现由低到高的趋势。海口湾贝类样品重金属污染指数较小,环境质量优良;对贝类组织器官选择性食用将大大降低危害健康的风险。
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Key words
heavy metal,haikou bay,shellfish,risk assessment
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