深圳湾典型有机氯农药的生物累积及其人体健康风险Levels of Organochlorine Pesticides in Organisms from Deep Bay and Human Health Risk Assessment
丘耀文;郭玲利;张干;
摘要(Abstract)：
位于深圳与香港之间的深圳湾是一个典型的亚热带海湾,在过去的二、三十年间,海湾的生态环境发生了巨大变化.为了更好地理解深圳湾有机氯农药(OCPs)的污染现状及其生物累积规律,于2004年2月采集了该海域23个鱼类、虾类、蟹类生物样品,分析了其体内滴滴涕(DDT)、六六六(HCH)和氯丹(CHL)各组分的含量,并对其人体健康风险进行了初步评价.结果表明,深圳湾海域鱼类DDTs、HCHs和CHLs含量范围分别为1.84～286.83、0.08～1.85、0.45～118.81ng·g-1ww(鲜重),肉食性鱼类OCPs含量通常较高;与其它海区相比,深圳湾海域水生生物体中DDTs的含量相对较高,部分鱼类样品中DDTs含量超过我国海洋生物质量国家标准(GB18421-2001)的二级标准,HCHs和CHLs则相对较低;生物体中DDTs、HCHs、CHLs的含量与其脂含量呈显著正相关(p<0.01);鱼类中DDTs、HCHs和CHLs的危害指数(HR)分析显示,目前食用深圳湾鱼类对人体正常健康(非癌症)基本无影响,但却存在潜在的致癌风险.
关键词(KeyWords)： 有机氯农药;滴滴涕;六六六;氯丹;生物累积;健康风险;深圳湾
基金项目(Foundation): 国家自然科学基金项目(No.40573061;No.40473041;No.U0633005)
作者(Author): 丘耀文;郭玲利;张干;
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