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	土壤苯污染引起的饮用地下水健康风险评价
	张应华 ; 刘志全 ; 李广贺 ; 张旭 ; Zhang Yinghua ; Liu Zhiquan ; Li Guanghe ; Zhang Xu
	2010-05-13 ; 2010-05-13
关键词	MMSOILS模型 苯污染 环境风险评价 风险值 MMSOILS Model Benzene contamination Environmental risk assessment Health risk value X824
其他题名	HEALTH RISK ASSESSMENT OF BENZENE CONTAMINATION OF DRINKING WATER
中文摘要	由于污染场地所引起的生态环境、食品安全和人体健康问题,污染场地的环境风险评价受到广泛关注。以某水源地油和苯等有机污染调查为依据,利用多介质暴露评价模型(MMSOILS模型),以苯为评价的目标污染物,分析烯烃厂不同分区的土壤苯污染对A地区造成的饮用地下水健康风险。结果表明,研究区4个分区中,裂解装置区的苯污染物释放是A地区地下水污染的主要来源,产生的饮水健康风险值为9.82×10-5,占总风险值的98.8%;而其他三个分区的影响较小;不同分区苯污染对A地区产生的饮水健康总风险值为9.94×10-5,大于美国环境保护署人体健康风险建议值10-6,对人体健康已经产生影响;裂解装置区的土壤苯污染作为饮水健康风险的主要来源,当其浓度值降低至1.32mgkg-1时,才能使其造成的饮水健康风险降低为10-6。; As pollution causes a series of problems with eco-environment,food safety and public human health,environmental risk assessment of contaminated sites has attracted extensive attention.Based on an investigation of a certain waterhead region for pollution of organic chemicals,like oils and benzene,heath risk assessment of drinking water in the region was performed using the MMSOILS model,a multimedia exposure assessment model,with Benzene as a target contaminant.The assessment shows that the total health risk value of Benzene contamination of drinking water in District A caused by the alkene plant is 9.94�0-5,which is far too much higher than the U.S.EPA risk limit of 10-6 and means that the contamination hazards public health.The contaminant comes mainly from the cracking installation,making the drinking water high in health risk value,being 9.82�0-5,accounting for 98.8% of the total.According to the modeling results,risk value in District A will lower to 10-6,posing no risk to human health,only after the Benzene concentration in the soil around the cracking installation is reduced to 1.32 mg kg-1.The research results provide an important foundation for effective control of the pollution and remediation of the contaminated sites.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/30396]
专题	清华大学
推荐引用方式 GB/T 7714	张应华,刘志全,李广贺,等. 土壤苯污染引起的饮用地下水健康风险评价[J],2010, 2010.
APA	张应华.,刘志全.,李广贺.,张旭.,Zhang Yinghua.,...&Zhang Xu.(2010).土壤苯污染引起的饮用地下水健康风险评价..
MLA	张应华,et al."土壤苯污染引起的饮用地下水健康风险评价".(2010).

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