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^-11a^-1~1.25×10^-7a^-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 eco-ogical 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 rder of Cr 〉 As 〉 Cd, all were below USEPA maximum acceptable risks. The non-carcinogenic risks were in se-uential order of Sr 〉 Pb 〉 Mo 〉 Fe 〉 Cu 〉 Se 〉 Ag 〉 Ni 〉 Zn 〉 Mn, and ranged in 9.36×10^-11a^-1~1.25×10^-7a^-1 , which were far below the limits from USEPA, ICRP and other authorities. Adult female had a igh 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.