【摘要】 环境健康风险评价是当今环境科学环境与健康研究中十分关注的重要研究领域。本文根据研究区水源地水环境多环芳烃(PAHs)的实测资料,对该区域水源地水环境中PAHs健康风险进行分析与评价。结果表明,区域具有致癌性的多环芳烃的健康危害风险度远大于非致癌多环芳烃所致的风险度,但均未超过国际辐射防护委员会(ICRP)推荐的最大可接受限值5.0×10-5a-1;其中年平均风险最大的致癌类PAHs污染物为二苯并蒽,非致癌类PAHs污染物为萘。本文的研究对确定该区域饮用水源多环芳烃的风险度水平、治理的主次及优先度,对城市供水水源风险管理和水环境保护措施的制定提供重要的科学参考。更多还原

【Abstract】 The risk assessment of environmental health is a very important research field in present enviroment science and health research.According to the measured data of PAHs in regional water supply source,the health risk of PAHs in water environment of regional water supply source has been analyzed and evaluated.The results have shown that the health risk of PAHs caused carcinogens was higher than non-carcinogen risk degree,but this effect was not exceeded the standard recommended data as 5.0×10-5·a-1 by ICRP.Among them,the yearly maximal carcinogens was primary and should be removed accordingly.This research has determined the risk degree of PAHs for the region drinking water,governance order and priority.These results can provide the important scientific reference for water environment risk management and water environment protection of the region.更多还原