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| 南宁市河流型水源地重金属污染调查与健康风险评价 |
| Pollution Survey and Health Risk Assessment of Heavy Metal Pollutants in Nanning River type Drinking Water Sources |
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| DOI： |
| 中文关键词: 铅 镉 汞 砷 污染调查 健康风险评价 水源地 南宁 |
| 英文关键词: Pb Cd Hg As Pollution survey Health risk assessment Drinking water source Nanning |
| 基金项目:南宁市科技局基金资助项目（20123246） |
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| 中文摘要: |
| 通过对南宁市河流型水源地水体中Pb、Cd、Hg、As浓度调查与健康风险评价研究，结果表明：这4种元素在水体中的质量浓度较低，均达到《地表水环境质量标准》（GB 3838-2002）Ⅱ类标准；经饮水途径引起的健康风险从大到小依次为As＞Cd＞Pb＞Hg，说明As是南宁市饮用水源中的主要风险因子；4种元素通过饮水途径引起的平均个人年健康致癌风险值为1.48×10-6 a-1～13.75×10-6 a-1,非致癌风险值为7.05×10-10 a-1，均低于美国环保局和国际辐射防护委员会的推荐值。 |
| 英文摘要: |
| The concentrations of the Pb,Cd,Hg and As and the health risks in river type drinking water sources of Nanning were studied.The results indicated that the concentrations of the four elements were better low and were up to the level Ⅱ of Environmental Quality Standards for Surface Water in China (GB 3838 2002).In all this health risks which caused by drinking,the order was As＞Cd＞Pb＞Hg,which showed that As had become the main risk factor in Nanning City′s drinking water sources.The value of the average personal health carcinogenic risk was 1.48×10-6 a-1～13.75×10-6 a-1and non carcinogenic risk 7.05×10-10a-1,less than the United States Environmental Protection Agency′s and the International Commission on Radiological Protection′s recommended value. |
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