巨野县浅层地下水综合环境质量及健康风险评价

研究了巨野县318件浅层地下水环境质量状况和引起的健康风险，结果表明，地下水环境质量处于较差和极差水平，TDS、NO2、CI、F、Mn、Fe因子的超标为地下水综合质量较差的主要原因。利用美国环保局推荐的健康风险评价模型进行健康风险评价，研究区地下水样品污染物总健康风险水平为0．14×10^-6～41．92×10^-6a^-1，低于ICRP最大接受风险值5×10^-5a^-1，超出1×10^-6a^-1的样点主要分布在研究区中部和南部；致癌物砷引起的个人健康风险是总健康水平较高的原因，占总健康风险的99％，非致癌物亚硝酸氮、氟、锰、铁引起个人健康风险水平较低，引起健康风险高低表现为F〉Fe〉Mn〉NO；。

The Comprehensive Environmental Quality and Health Risk Assessment of the Shallow Groundwater in Juye County

The quality status and health risk of 318 shallow groundwater environment in Juye County was studied, the results showed that, the groundwater environmental quality is on the poor and very poor level. The exceeding of TDS, NO2^- , Cl, F, Mn and Fe is the main cause for poor quality of groundwater. Using health risk assessment model recommended by EPA, the total pollutant health risk level is 0.14×10^-6～41.92×10^-6a^-1 ,which is lower than the ICRP value at risk of5×10^-5a^-1,pollutant health risk level of the samples in the middle and south part of the research area is above 1×10^-6a^-1. The individual health risk caused by carcinogens arsenic is the main cause for higher of general health level, accounting for total health risk 99% , non carcinogen nitrite nitrogen, fluoride, manganese, iron bring low personal heahh risk level, and the order of health risk level they bring is F 〉 Fe 〉 Mn 〉 NO2^-