氟化工园区及周边地下水健康风险及脆弱性评价

以阜新市某氟化工园区为研究对象，对园区及周边地下水样品中的Cr、As、Cu、Hg、Mn及F 6种元素分季节进行测定分析，采用美国环保署（US EPA）推荐的人体健康风险评价模型对重金属Cr、As、Cu、Hg、Mn及F进行地下水环境的人体健康风险评价，并应用DRASTIC模型评价该区域地下水的脆弱性.结果表明，研究区地下水受到重金属和氟化物的污染.健康风险评价表明，总致癌风险数量级在10^-5~10^-4之间，处于Ⅱ~Ⅳ级风险评价标准区间，总非致癌风险大于1，经饮水摄入途径引起的非致癌危害比皮肤接触途径高3~4个数量级.脆弱性评价表明，研究区的脆弱性指数DI范围为4.30~5.91，整体脆弱性处于Ⅲ级中等脆弱性水平.

Health risk and vulnerability assessment of groundwater in fluorine chemical industrial and surrounding areas

In this study, five metals (Cr, As, Cu, Hg, Mn) and F in groundwater at fluorine chemical industrial and surrounding areas in Fuxin were analyzed, and the human health risk and the vulnerability were assessed by using the human health risk assessment model recommended by US EPA and the DRASTIC model, respectively. The results show that the groundwater in this study area was affected by heavy metals and fluoride. The total cancer risk was between 10^-5 and 10^-4, which belongs to the risk assessment criteria range of II~IV. The total non-cancer risk was greater than 1, which dominate caused by drinking water intake. The risk caused by drinking water intake was 3 to 4 orders of magnitude higher than the skin contact route. The vulnerability index of the study area ranged from 4.30 to 5.91, which at the III medium vulnerability level.