浙江省饮用水源有机毒物污染特征及健康风险研究  

Study on pollution pattern and health risk of organic toxicants in Zhejiang source water

作　　者：王静[1] 刘铮铮[1] 许行义[1] 叶伟红[1] 孙晓慧[1] 

机构地区：[1]浙江省环境监测中心,浙江杭州310012

出　　处：《环境污染与防治》2010年第7期29-33,共5页Environmental Pollution & Control

基　　金：浙江省科技厅重大科技专项社会发展重点项目(No.2006C13060);浙江省科技厅分析测试科技计划项目(No.2008F70033);浙江省环保科技项目(No.200805)

摘　　要：在对浙江省98个县级以上饮用水源地水体中有机毒物污染进行调查的基础上,运用美国环境保护署(EPA)制定的相关模型对饮用水源地水体中有机毒物污染引起的健康风险进行评价。结果表明,在98个饮用水源地水体中共检出7种有机毒物,分别为微囊藻毒素-LR(MC-LR)、微囊藻毒素-RR(MC-RR)、草甘膦、邻苯二甲酸二异辛酯(DEHP)、邻苯二甲酸二丁酯、多环芳烃、咔唑;各饮用水源地水体中检出的有机毒物引起的健康风险大小依次为多环芳烃>DEHP>咔唑>MC-LR>草甘膦>邻苯二甲酸二丁酯;存在有机毒物检出的饮用水源地水体的总健康风险约为10-13～10-8a-1,与部分国际机构制定的饮用水源地水质健康风险水平判断标准相比,浙江省饮用水源地水体中有机毒物污染引起的健康风险远低于可接受水平,大部分饮用水源地水体的健康风险甚至达到可忽略水平。Base on the organic toxicants pollution data collected from 98 source water bodies in Zhejiang Province, the health risk that induced by organic toxicants was assessed with US EPA model. 7 organic toxicants of microcystin-LR, microcystin-RR, glyphosate, diethylhexyl phthalate （DEHP）, dibutyl phthalate, polyeyclic aromatic hydrocarbons, carbazole were detected in 98 source water bodies. Health risk resulted by different organic toxicants followed the sequence of polycyclic aromatic hydroearbons〉 diethylhexyl phthalate〉 carbazole〉 mierocystin-LR〉 glyphosate〉dibutyl phthalate. The total health risk of organic toxicants in source water were in range of 10 ^-13～10^-8 a^-1 , which were much lower than the limit of acceptable risk according to international standard.

关 键 词：饮用水源地 有机毒物 污染特征 健康风险 

分 类 号：X52[环境科学与工程—环境工程]