烟台近海海域经济类海洋生物体内Sn、Hg的含量分析  

Study on Concentrations of Sn,Hg in Some Edible Marine Organisms in Yantai Coastal Areas

作　　者：邵立娜[1] 任宗明[2] 张高生[2] 陈琳琳[2] 刘东艳[2] 王子健[3] 赵建平[4] 

机构地区：[1]兰州交通大学环境与市政工程学院,兰州730070 [2]中国科学院烟台海岸带研究所海岸带环境过程重点实验室,烟台264003 [3]中国科学院生态环境研究中心,北京100085 [4]宁波市环境监测中心,宁波315012

出　　处：《环境科学》2011年第6期1696-1702,共7页Environmental Science

基　　金：环保公益性行业科研专项(200809147);国家水体污染控制与治理科技重大专项(2009ZX07527-002-06);中国科学院知识创新工程项目(KZCX2-YW-Q07-04)

摘　　要：为评估烟台近海海域海产品中重金属Sn和Hg的污染状况,2009年7月,在该海域的3个海区,采集了3种常见虾、蟹样品,同时在市场上购买了7种双壳贝类样品.利用电感耦合等离子体质谱仪(ICP-MS)测定了生物体中Sn和Hg的含量.结果表明,不同物种体内Sn和Hg含量不同,变化范围(以干重计,下同)分别为0.375～0.570 mg.kg-1和0.060～0.340 mg.kg-1,平均值分别为0.470 mg.kg-1和0.140 mg.kg-1;就市售双壳贝类而言,牡蛎对Sn有较高的累积能力,Sn含量为0.570 mg.kg-1,而紫贻贝对Hg的累积量最高,为0.340 mg.kg-1,Pi为1.13,属于严重污染;Sn和Hg的含量分别在栉孔扇贝和竹蛏体内最低;对于采集的生物样品,对照区中虾蛄、鼓虾和隆背蟹体内Sn和Hg平均含量均低于排污区和港口区,其中Sn平均含量分别为:0.520mg.kg-1(港口区)、0.470 mg.kg-1(排污区)和0.290 mg.kg-1(对照区),Hg平均含量分别为:0.160 mg.kg-1(港口区)、0.157mg.kg-1(排污区)和0.137 mg.kg-1(对照区).与其他研究结果相比,本调查中生物体内Sn的含量处于中等水平,而Hg含量较高.但除紫贻贝外,其他生物体中Hg含量均符合《农产品安全质量无公害水产品安全要求》(目前国家尚无Sn的规定限值).上述结果表明,该近海海域未显著受到重金属Sn和Hg的污染;但从健康考虑,人们应食用远离排污区和港口区的海产品.To evaluate the contamination of Sn and Hg in the seafood in Yantai coastal areas,three kinds of wild shrimps and crabs were collected from three zones located in the coast in July,2009.At the same time,seven kinds of mollusks were purchased from the local market.The concentrations of Sn and Hg in the samples were analyzed using an Agilent 7500i inductively coupled plasma-mass spectrometer（ICP-MS）.The results showed that Sn and Hg concentrations in all the samples were different,with the ranges of 0.375-0.570 mg·kg-1 and 0.060-0.340 mg·kg-1（d.w.）and the average values of 0.470 and 0.140 mg·kg-1,respectively.For the mollusk samples,Concha ostreae was highly enriched with Sn,with the value of 0.570 mg·kg-1,while Mytilus edulis was obviously enriched with Hg,with the value of 0.340 mg·kg-1.The value of Pi was 1.13,which indicated that Mytilus edulis was seriously polluted.The concentrations of Sn and Hg in Chamys farreri and Sol sricus were the lowest,respectively.For the collected samples,the average concentrations of Sn and Hg in Oratosquilla oratoria,Alpheus brevicristatus and Carpilius convexus in the background area were all lower than those in sewage outfall area and port area,the average concentrations of Sn were 0.520 mg·kg-1（port area）,0.470 mg·kg-1（sewage outfall area）and 0.290 mg·kg-1（background area）,the average concentrations of Hg were：0.160 mg·kg-1（port area）,0.157 mg·kg-1（sewage outfall area）and 0.137 mg·kg-1（background area）.Compared with other reports,the Sn level in the studied marine organisms was moderate,but the Hg level was a little higher.However,the concentrations of Sn and Hg in the studied marine seafood were all below the limit for agriculture product safety requirements for non-environmental pollution products,except Hg in Mytilus edulis（the national standards of Sn haven＇t been established）.The results suggested that the coastal areas studied were not significantly polluted by the heavy metals of Sn and Hg.However,from the view of human

关 键 词：SN HG 累积 近海生物 烟台 

分 类 号：X174[环境科学与工程—环境科学]