乌鲁木齐市饮用水源地水环境健康风险评价  

Environmental Health Risk Assessment for City Drinking Water Sources in Urumqi

作　　者：蒋焕 吕湘芳 胡云翔 冷冰冰 赵伟 Jiang Huan;Lü Xiangfang;Hu Yunxiang;Leng Bingbing;Zhao Wei(Urumqi Environmental Mornitoring Station,Urumqi 830000,China)

机构地区：[1]乌鲁木齐市环境监测中心站,乌鲁木齐830000

出　　处：《中国资源综合利用》2020年第8期166-168,共3页China Resources Comprehensive Utilization

摘　　要：本文采用美国国家环境保护局(US EPA)使用的水环境健康风险评价模型对乌鲁木齐市7个饮用水源地进行了水环境健康风险评价。监测结果显示,各饮用水源地水质良好,经饮用途径所致的个人健康危害风险值介于(4.56~5.41)×10-5 a-1。化学致癌物的年风险值均高出非致癌物年风险值100倍以上,可忽略非致癌物的健康风险影响。经分析,化学致癌物铬(六价)在五年总的风险评价平均值中占比均超过90%,远大于其他两种化学致癌物。因此,建议将其列为水源地水环境污染的重点防控对象。This paper uses the water environment health risk assessment model used by the US Environmental Protection Agency(US EPA)to conduct a water environment health risk assessment of 7 drinking water sources in Urumqi.The monitoring results show that the drinking water sources are in good water quality,and the risk value of personal health hazards caused by drinking is between(4.56~5.41)×10^-5 a^-1.The annual total risk value of chemical carcinogens is more than 100 times higher than the annual total risk value of non-carcinogens,and the health risk impact of non-carcinogens can be ignored.After analysis,the chemical carcinogen chromium(hexavalent)accounts for more than 90%of the five-year total risk assessment average,which is much larger than the other two chemical carcinogens.Therefore,it is recommended to list it as a key target for prevention and control of water environment pollution in water sources.

关 键 词：饮用水源地 健康风险评价 乌鲁木齐市 

分 类 号：X820.4[环境科学与工程—环境工程]