六安市城区饮用水源水重金属健康风险评价

对六安市城区饮用水源水中的重金属污染物进行了调查研究,应用美国环保局推荐的健康风险模型对引起的健康风险度做了初步评价。结果表明,重金属污染物中的非致癌物质所引起的健康风险度较低,在10^-7和10^-10之间,均远低于ICRP推荐的最大可接受风险水平,风险水平大小次序为Zn、Cu、Pb、Hg,锌的风险度最大;但致癌物质所构成的健康危害较高,其中,Cd和Cr平均个人年风险度分别达到了5.476×10^-6和3.677×10^-5,Cr所造成的平均个人年风险非常接近ICRP推荐的最大可接受风险水平,可知Cr致癌风险极大,应优先管理。

The Health Risk Assessment of Heavy Metals in Drinking Water in Lu'an

In this paper,Lu＇an City＇s main water source of drinking water contaminants of heavy metals was investigated,and the application of the United States Environmental Protection Agency recommended model health risks Lu＇an City water source of drinking water caused by heavy metal pollutants in the health risk to do a preliminary evaluation.The results showed that heavy metal pollutants in the index of non-carcinogenic substances,health risks from low,10^-7and 10^-10 in between the exposed population will not pose a significant health threat.However,carcinogenic health hazards posed by a higher one,Cd and Cr had reached 5.477×10^-6 and 3.677×10^-5,Cr caused by the average individual risk has been in very close to the International Commission on Radiation Protection（ICRP） recommended maximum acceptable way through the level of drinking water,indicating the existence of a certain degree of pollution,priority should be to manage.