水资源与水工程学报2017，Vol.28Issue(5)：54-60,7.DOI:10.11705/j.issn.1672-643X.2017.05.09
盐城滨海平原地下水质量现状及健康风险评价
Groundwater quality evaluation and the health risk assessment of Yancheng Coastal Plain
摘要
Abstract
To investigate the groundwater quality of Yancheng Coastal Plain,33 chemical indexes were de-tected from the groundwater samples collected from 267 representative groundwater wells.Through the con-junctive use of the single factor comprehensive evaluation and the identification factor,the current status of groundwater quality was identified and the human health risk of toxicological indicators were given for refer -ences.Results showed that: the normal chemical index exerts the greatest influence on the quality of groundwater.According to IV-V class groundwater,and the total contribution rates of sodium,iron,man-ganese,chloride,total dissolved solids,iodide and arsenic,which are kinds of protogenetic component,are more than 20%.among all of the pollution indexes,the contribution rates of ammonia nitrogen is 8%,and the influence of heavy metals on the regional groundwater quality is negligible; the health risk of arsenic (As)is 10 -5~10 -3a -1,which is highest of three chemical carcinogens(As,Cd and Cr).As is the pri-mary control index for environmental health risk management;Among the health risks of chemical non-car-cinogens of NO -2,NO-3,F and five heavy metals(Hg,Mn, Cu,Zn,Pb),F has the highest health risk with the values within 10 -8~10 -6a -1and the maximum acceptable rates were 82%for the deep groundwa-ter and 88%for the shallow groundwater beyond the USEPA standard(1×10 -4a-1).The health risk val-ues of the five heavy metals all within the acceptable range(less than 1×10 -6a -1)for the vast majority samples,except Mn and Pb has a relative highe health risk values which still within the acceptable range(1 ×10 -6a-1).The study of groundwater quality and health risk assessment of toxicological index can provide references for exploitation,utilization and protection of groundwater resources.关键词
地下水质量/毒理指标/影响程度/健康风险评价/化学致癌物/非化学致癌物/风险指标/盐城滨海平原Key words
groundwater quality/toxicological index/influence level/health risk assessment/chemical carcinogens/chemical nonk-carcinogens/risk index/Yancheng Coastal Plain分类
资源环境引用本文复制引用
付昌昌,李向全,张岩,毛磊,龚绪龙..盐城滨海平原地下水质量现状及健康风险评价[J].水资源与水工程学报,2017,28(5):54-60,7.基金项目
国家自然科学基金项目(41502336) （41502336）
中国地质调查局项目(121201106000161309) （121201106000161309）
