东莞及其邻近海域经济鱼类体内滴滴涕残留特征及风险评价  

Residues and risk assessment of dichlorodiphenyl trichloroethanes in commercial fishes from Dongguan and its adjacent waters

作　　者：张琳玲 黄健生 邹潍力 梁建锋 

机构地区：[1]东莞市海洋与渔业环境监测站,广东东莞523888

出　　处：《南方水产科学》2012年第4期57-61,共5页South China Fisheries Science

基　　金：东莞市科技计划项目(K10017K);广东省渔业生态环境重点实验室开放课题基金项目(LFE-2011-02)

摘　　要：采用Agilent 7890N型气相色谱仪、毛细管色谱柱(HP-5 30 m×320μm×0.25μm)和ECD检测器测定了东莞及其邻近海域6种经济鱼类体内的滴滴涕(DDTs)残留量。结果显示,鱼类体内残留的w(DDTs)为1.527～24.842μg.kg-1,最高的为凤鲚(Coilia mystus),其后为尖尾鳗(Uroconger lepturus)和龙头鱼(Harpadon nehereus);鱼类体内DDTs的4种同分异构体中,w(PP'-DDE)最高,其后为w(PP'-DDD)、w(PP'-DDT)和w(OP'-DDT),其所占总量百分比的平均值分别为44.55%、29.19%、22.01%和4.25%;东莞及其邻近海域内应无新的DDTs污染源输入,鱼体内的DDTs可能来自过去的污染,对人体健康不构成威胁。We determined the residues of dichlorodiphenyl trichloroethanes（DDTs） in 6 species of commercial fishes from Dongguan and its adjacent waters by Agilent 7890N GC,capillary column（HP-5 30 m×250 μm×0.25 μm） and ECD detector.Results show that the DDTs residues in those fishes are 1.527~24.842 μg · kg-1.Coilia mystus has the highest content of DDTs residues,followed by Uroconger lepturus and Harpadon nehereus.The average content of P,P′-DDE,P,P′-DDD,P,P′-DDT and O,P′-DDT is 44.55%,29.19%,22.01% and 4.25%,respectively.Since no new pollution source of DDTs was found,the DDTs in those fishes might come from the past pollution and pose no significant threat to human health.

关 键 词：滴滴涕 经济鱼类 残留特征 风险评价 

分 类 号：X835[环境科学与工程—环境工程]