穆三妞;赖子尼;王超;李跃飞;赵李娜;李秀丽;高原;

• 1:中国水产科学研究院珠江水产研究所
• 2:珠江水域渔业生态环境监测与评价功能实验室
• 3:上海海洋大学水产与生命学院

摘要(Abstract)：

以珠江河口水生食物链较顶端的鱼类和虾类作为研究对象,利用气相色谱(GC-ECD)法检测分析了有机氯农药滴滴涕(DDTs)和六六六(HCHs)及其单体在这些水生动物体内的残留水平和特征,以期为珠江流域水生生物生态风险评价提供基础资料和科学依据。结果显示,鱼类肌肉中的DDTs含量(以湿质量计)范围为未检出(nd)～42.73μg.kg-1(平均值为7.61μg.kg-1),在虾类肌肉中的含量范围为nd～9.51μg.kg-1(平均值为1.97μg.kg-1);鱼类肌肉中的HCHs含量范围为nd～1.71μg.kg-1(平均值为0.62μg.kg-1),在虾类肌肉中的含量范围为nd～0.86μg.kg-1(平均值为0.56μg.kg-1)。鱼类肌肉中DDTs和HCHs的残留均值高于虾类,而鱼类和虾类体内DDTs的残留量均高于HCHs的残留量。HCHs、DDTs的单体分别以γ-HCH、p,p'-DDT的含量最高,而且近期都有新的污染源输入。所采集的水产品中DDTs、HCHs残留量尚低于我国的无公害水产品质量安全标准要求(GB18406.4),亦低于日本、欧盟等发达国家和地区相关的最大残留限量,因此,DDTs、HCHs通过膳食的暴露暂时不会对该地区的人体健康产生危害。

关键词(KeyWords)： 滴滴涕;六六六;残留;珠江河口;鱼类;虾类

Abstract:

Keywords:

基金项目(Foundation): 全国渔业环境监测网珠江生态监测与评价项目“广东省海洋渔业科技推广专项(A2011009)”

作者(Author): 穆三妞;赖子尼;王超;李跃飞;赵李娜;李秀丽;高原;

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