黑龙江省农村饮用水水质健康风险评价

本文以黑龙江省农村饮用水为研究对象,调研分析了该地区农村饮用水水质状况和水质问题,筛查出三种可能造成人体健康风险的典型污染物:砷,氟化物,硝酸盐。在此基础上,选用了USEPA推荐的水质风险健康评价模型对三种污染进行了健康风险评价,评价结果表明砷的健康风险值大于最大可接受限值10-(6a-1),存在较大人体健康风险,氟化物和亚硝酸盐人体健康风险较小。此外,根据水质健康风险评价结果,对保障黑龙江省农村饮用水实质安全提出了初步解决措施。

Health Risk Assessment of Rural DrinkingWater Quality for Heilongjiang Province

In this study,taking the rural drinking water in Heilongjiang province as the research object,we firstly surveyed the water quality status quo and problem of the rural drinking water.Then screened out three typical pollutants which may probably do harm to human body: arsenic,fluoride,and nitrate.Based on the above process,risk evaluation model of water quality health which was rec-ommended by the USEPA was chosen to assess the three kinds of pollution.The results show that the health risks of arsenic is greater than maximum acceptable limits 10-6(a-1),and there is greater risk to human health,while fluoride and nitrite have less risk to human health.In addition,according to the results of the water quality health risk assessment,a preliminary solution was proposed to protect the safety of drinking water in rural areas of Heilongjiang Province.