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污染场地健康风险评价的实例研究
引用本文:谌宏伟,陈鸿汉,刘菲,何江涛,沈照理,孙静.污染场地健康风险评价的实例研究[J].地学前缘,2006,13(1):230-235.
作者姓名:谌宏伟  陈鸿汉  刘菲  何江涛  沈照理  孙静
作者单位:中国地质大学(北京)水资源与环境工程北京市重点实验室,北京,100083
基金项目:中国科学院资助项目;中国地质调查局地质调查项目
摘    要:以常州市A厂有机污染调查为依据,采用篇中讨论的污染场地健康风险评价方法综合评价由土壤、空气、地下水污染带来的人群健康风险。综合分析表明,场地目标污染物为4种苯系物,可能对人体产生肝肾病变、鼻上皮组织恶化和运动协调能力降低等非致癌效应;污染物暴露途径主要有3条,分别暴露于厂区人群和饮用厂区下游民井井水的居民。评价结果显示,厂区人群同时遭受皮肤接触污染土壤和呼吸污染空气带来的非致癌危害。4种污染物的多途径同种污染物累计非致癌危害指数分别为甲苯,2·82×10-2;乙苯,4·94×10-2;间对二甲苯,1·21×10-7;异丙苯,1·05×10-7。两途径多污染物非致癌总危害指数分别为4·26×10-5和7·76×10-2,非致癌综合危害指数为7·76×10-2;厂区下游居民饮用遭受污染的地下水,其多污染物非致癌总危害指数为1·55×10-5。各危害指数均小于1,非致癌健康风险较小。

关 键 词:污染场地健康风险评价  暴露途径  非致癌危害指数  常州市
文章编号:1005-2321(2006)01-0230-06
收稿时间:2005-11-04
修稿时间:2005-11-24

Health-based risk assessment of contaminated sites: A case study
CHEN Hong-wei,CHEN Hong-han,LIU Fei,HE Jiang-tao,SHEN Zhao-li,SUN Jing.Health-based risk assessment of contaminated sites: A case study[J].Earth Science Frontiers,2006,13(1):230-235.
Authors:CHEN Hong-wei  CHEN Hong-han  LIU Fei  HE Jiang-tao  SHEN Zhao-li  SUN Jing
Abstract:on the basis of the methods of health-based risk assessment of contaminated sites and the investigation of organic pollution in the A factory in Changzhou,East China, we assess the integrated human health risk of soil, air and groundwater contamination. It is concluded that the pollutants are four monocyclic aromatic hydrocarbons, which may bring pathological changes in liver and kidney, degenerate the nasal epithelium and impair the motorial coordination capacity. There are three exposure pathways for workers inside the factory and the residents living downgradient of the factory. This assessment indicates that workers inside the factory, who simultaneously contact the contaminated soil and breathe polluted air, would suffer non-carcinogenic impacts with total multi-pathways non-carcinogenic hazard index for toluene, ethylbenzene, m,p-xylene and cumene being 2.82×10~-2, 4.94×10~-2, 1.21×10~-7 and 1.05×10~-7 respectively, the total two pathway multi-substance hazard index being 4.26×10~-5 and 7.76×10~-2 respectively, and the total exposure hazard index being 7.76×10~-2. Residents living downgradient of the factory, who drink contaminated groundwater, would suffer non-carcinogenic impacts with total multi-substance hazard index being 1.55×10~-5. The hazard indices all are less than unity and the non-carcinogenic health risk of this factory is negligible.
Keywords:health-based risk assessment of contaminated sites  exposure pathway  non-carcinogenic hazard index  Changzhou City
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