郭建阳;孟祥周;麦碧娴;罗孝俊;吴丰昌;曾永平;

• 1:中国科学院广州地球化学研究所有机地球化学国家重点实验室
• 2:中国科学院地球化学研究所环境地球化学国家重点实验室 贵阳550002
• 3:中国科学院研究生院
• 4:北京100039

摘要(Abstract)：

水产品的摄入是人体暴露于有机氯农药的主要途径之一.实验检测了采自广东省11个沿海城市水产市场的海鲜类水产品(包括6种虾类、2种蟹类和13种贝类共228个样品)中滴滴涕类农药(包括o,p’-DDT、p,p’-DDT、o,p’-DDD、p,p’-DDD、o,p’-DDE和p,p’-DDE)的残留.结果显示,DDTs在虾类、蟹类和贝类体内的平均湿重含量范围分别为0.8￣17.6ng·g-1、5.1￣16.0ng·g-1和0.6￣209.4ng·g-1.不同水产品之间因生活环境和生活习性的不同,导致其DDTs含量存在较大差别.与我国最新的食品残留标准(GB2763-2005)相比,所检测样品DDTs的含量均未超标.但若以美国环境保护局(USEPA)的标准来衡量,则DDTs含量超标的百分率达27.6%.据最近的膳食结构调查显示,广东省沿海地区的居民每天虾、蟹、贝类水产品的平均消费量为26.0g,因而通过海鲜类水产品每天摄入DDTs的量为2.4ng·kgbodyweight-1·day-1,这一结果远远低于我国设定的每日耐受摄入量(PTDI)和联合国粮农组织及世界卫生组织(FAO/WHO)的相关标准.

关键词(KeyWords)： 滴滴涕;海鲜类水产品;人体暴露;每日摄入量

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(No.40532013;No.40588001);; 中国科学院“引进国外杰出人才计划”基金项目

作者(Author): 郭建阳;孟祥周;麦碧娴;罗孝俊;吴丰昌;曾永平;

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