白洋淀淀中村非规范垃圾堆放地下水污染健康风险评价  

Groundwater Pollution Health Risk Assessment at Non-formal Solid Waste Dumping Sites of a Village in Baiyangdian Lake

作　　者：李鸣晓[1] 安达[1,2] 杨昱[1] 霍守亮[1] 赵国鹏[3] 万书明 宋彩红[3] 

机构地区：[1]中国环境科学研究院,北京100012 [2]北京师范大学环境学院,北京100875 [3]东北农业大学生命科学学院,黑龙江哈尔滨150030

出　　处：《环境工程技术学报》2012年第5期449-455,共7页Journal of Environmental Engineering Technology

基　　金：国家环境保护公益性行业科研专项(201009009-04);国家水体污染控制与治理科技重大专项(2008ZX07209-007-004)

摘　　要：以白洋淀淀中村地下水水样采集与分析为依据,采用USEPA推荐的健康风险评价方法综合评价淀中村由于非规范垃圾堆放导致的地下水污染对周边居民造成的健康风险。结果表明,淀中村地下水污染的目标污染物为NO-3-N、NH+4-N、Cr6+和Hg;成年人和儿童两类人群经口暴露途径的健康风险均远大于皮肤暴露;成年人经口暴露的风险大于儿童,而其皮肤暴露的风险小于儿童;4种目标污染物中,Hg的风险贡献最大,其风险贡献率达98%;地下水污染对人体的非致癌风险大于1,该地区地下水对当地居民人体健康造成的风险应该引起重视。On the basis of the analysis of the groundwater samples collected from a village located in Baiyangdian Lake, the health risk assessment model recommended by US EPA was applied to evaluate synthetically the local residents＇ health risk that was caused by groundwater contamination of non-formal solid waste dumping sites. The results showed that the target contaminants of the village groundwater were NO3^- -N, NH4^＋ -N, Cr^6＋ and Hg. For exposure public of adults and kids, the health risk via dietary intake exposure path was largely higher than the health risk via dermal intake exposure path; exposure risk of adults via dietary intake was higher than kids via dietary intake and the exposure risk of adults via dermal intake was lower than kids via dermal intake. Among four kinds of target contaminants, Hg risk contribution rate was 98% and ranked the first place. Non-cancerous risk level of groundwater contamination was more than 1, so more attention should be paid to the residents＇ health risk caused by non-formal solid waste dumping sites groundwater contamination.

关 键 词：白洋淀 垃圾堆放场 地下水 健康风险评价 

分 类 号：X524[环境科学与工程—环境工程]