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| 生态保护区域饮用水源地水质金属健康风险评价 |
| Health Risk Assessment of Metals from Drinking Water Sources in Chongqing Ecological Protection Area |
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| DOI： |
| 中文关键词: 生态保护区域 饮用水源地 金属 健康风险评价 |
| 英文关键词: Ecological protection area Drinking water sources Metal Health risk assessment |
| 基金项目:重庆市社会事业与民主保障科技创新专项基金资助项目（cstc2015shmszx0042）；重庆市基础科学与前沿技术研究基金资助项目（cstc2015jcyjA0002）；黔江区科委科技计划基金资助项目（黔科计2015046） |
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| 中文摘要: |
| 选择重庆市生态保护发展区域饮用水源地为研究对象，运用健康风险评价模型对其水质金属进行评价。结果表明：7个饮用水源地中27种金属元素均达到USEPA、WHO和《生活饮用水卫生标准》（GB 5749—2006）限值要求。饮用水源地中致癌健康风险从高到低依次为Cr＞As＞Cd，均低于USEPA最大可接受风险。非致癌金属的健康风险从高到低依次为Sr＞Pb＞Mo＞Fe＞Cu＞Se＞Ag＞Ni＞Zn＞Mn，非致癌风险水平为9.36×10-11 a-1～1.25×10-7 a-1，远低于USEPA、ICRP等权威机构限值。成人致癌和非致癌健康风险水平均为女＞男，致癌总风险均大于非致癌总风险2个数量级以上，总健康风险均保持在10-5数量级水平。 |
| 英文摘要: |
| The health risks of 27 kinds of metal elements from 7 drinking water sources in Chongqing ecological protection area were assessed. The concentrations of all the elements were below the limits from USEPA, WHO and national standard of drinking water quality (GB 5749—2006). The carcinogenic risks arranged in the order of Cr＞As＞Cd, all were below USEPA maximum acceptable risks. The non carcinogenic risks were in sequential order of Sr＞Pb＞Mo＞Fe＞Cu＞Se＞Ag＞Ni＞Zn＞Mn, and ranged in 9.36×10-11 a-1～1.25×10-7 a-1, which were far below the limits from USEPA, ICRP and other authorities. Adult female had a high risk level of carcinogenic and non carcinogenic than adult male, the total carcinogenic risk was two orders of magnitude more than the total non carcinogenic risk, the total health risk were at the level of 10-5. |
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