浏阳河及其附近地下水高氯酸盐污染状况及健康风险初步评价  

Pollution and Health Risk Assessment of Perchlorate in River Water and Groundwater of Liuyang River Region

作　　者：李琴[1] 陈世武[2] 杨林 林海鹏[1,4] 秦娟[1,5] 张艳平[1] 车飞[1] 于云江[1] 

机构地区：[1]中国环境科学研究院,北京100012 [2]中国信息安全测评中心,北京100085 [3]陕西省环境科学研究院,西安710054 [4]中国辐射防护研究院,太原030006 [5]北京市丰台区疾病预防控制中心,北京100071

出　　处：《农业环境科学学报》2013年第10期2042-2046,共5页Journal of Agro-Environment Science

基　　金：国家自然科学基金项目(21177119);国家环保公益性行业科研专项(201309047);中国环境科学研究院中央级公益性科研院所基本科研业务专项(2007KYYW30)

摘　　要：对浏阳市境内浏阳河及其附近地下水中高氯酸盐的含量进行了调查分析,并利用美国环保署推荐的健康风险评价模型对该区域人群经饮水途径摄入高氯酸盐所产生的健康风险进行了初步评价。结果表明,浏阳市境内的浏阳河上游、中上游、中游、下游河水中高氯酸盐平均含量分别为1.84、78.09、26.57、47.69μg·L-1,地下井水中高氯酸盐含量分别为1.20、22.94、11.64、5.17μg·L-1,泉水中高氯酸盐含量分别为1.10、5.94、3.68、0.84μg·L-1,中下游河水、地下井水中高氯酸盐含量都高于上游河段,提示浏阳河中上游、中游、下游河水及地下井水可能受到高氯酸盐污染。健康风险评价结果显示,浏阳河中上游、中游和下游河水及中上游调查点处的地下井水中高氯酸盐经饮用水摄入途径对儿童及成人产生的健康风险危害商数值均大于1,可能会对人体健康产生危害。Perchlorate is one of strong oxidizers and an antagonist of iodide. An investigation was performed to determine pollution and po- tential health risk of perchlorate in water of the Liuyang River and nearby groundwater. Average concentrations of perehlorate were 1.84, 78.09, 26.57, and 47.69 μg L-l in river water at upstream, middle-upper, midstream and downstream parts of Liuyang River, 1.20, 22.94, 11.64, 5.17 μg L-1 in well water, and 1.10, 5.94, 3.68, 0.84 μg L-1 in spring water, respectively, implying water contamination by perchlo- rate. Health risk assessment by the U.S. EPA model showed that non-cancer Hazard Quotient（ HQ ）, ratio of estimated daily intake of per- chlorate to its reference dose over a specific time period, was greater than 1 for both river water and groundwater at middle-upper, mid- stream and downstream of Liuyang River, indicating potential perchlorate risks to human in this area.

关 键 词：高氯酸盐 浏阳河 花炮 地下水 健康风险评价 

分 类 号：X820.4[环境科学与工程—环境工程]