松花江傍河水源地地下水污染健康风险评价

Health risk assessment on groundwater pollution in a riverside well area of Songhua River Basin

为研究松花江流域某傍河水源地地下水污染对人体健康产生的危害风险,对该地区地下水水质进行了监测分析,并采用《污染场地风险评估技术导则》(HJ 25.3-2014)推荐的水环境健康风险评价模型,对当地地下水环境健康风险进行评价。结果表明:地下水中F^-、NH_4-N、Mn和As均不同程度地超过了国家饮用水卫生标准(GB 5749-2006)规定的限制;非致癌物质健康风险表现为As>Mn>F^->NH_4^+>Zn>Cu>NO_3^->NO_2^->Cr^(6+),致癌物质健康风险评价表现为As>Cr^(6+)。该地区健康风险评价结果表明:研究区地下水污染物会对人体健康造成危害,其中成年女性和儿童相比于成年男性面临更高的健康风险。

In order to study the risk of groundwater pollution on human health in a riverside well area of Songhua River Basin,a series of pollutants in the groundwater were analyzed,and health risk was also assessed using the model recommended by the Technical Guidelines for Risk Assessment of Contaminated Sites(HJ 25.3-2014).The results showed that the concentrations of F-,NH3-N,Mn and As exceed the National Standards for Drinking Water Quality(GB 5749-2006)in varying degrees.The order of contaminants contributing to non-carcinogenic risk is As>Mn>F->NH4+>Zn>Cu>NO3->NO2->Cr6+,and for carcinogenic the risk is As>Cr6+.The health risk assessment results of this area showed that the groundwater pollutants were harmful to the residents,and women and children faced higher risk than men in both non-carcinogenic and carcinogenic risks.