地表河流水环境重金属污染风险评价

地表河流水环境安全是影响人民生命健康和社会经济可持续发展的重要因素，需要引起高度重视。地表河流水环境重金属污染风险评价是将河流水环境重金属污染与人体健康定量联系的一种新型评价方法。文章综合目前国内外地表河流水环境重金属污染风险评价的研究成果，建立了地表河流水环境健康风险评价模式。采用大渡河在雅安市汉源县三谷庄的监测断面数据进行水环境重金属污染风险评价，研究了地表河流水环境健康风险问题，得出定量的健康风险指标，为地表水风险管理和决策提供重要依据，为其地表河流水环境重金属污染健康风险评价提供参考。

Risk assessment of heavy metal pollution of water environment for surface river

The safety of surface water is an important factor concerning the health of our citizen and sustained development of society and economy in China and need to be paid great attention. Risk assessment of heavy metal pollution in surface water is a new assessment method which quantitatively connects water heavy metal pollution with human health. This paper established a risk assessment model of heavy metal pollution of surface water environment on the basis of achievements in risk assessment research at home and abroad. By use of the measared data from Dadu river at Sangu village of Hanyuan county, Yahn city, it carried out the risk assessment of heavy metal pollution of water environment, and studied the prob- lems of health risk of heavy metal pollution of surface water environment. The results will provide important basis for the risk management and decision - making of surface water and reference for the risk assessment of heavy metal pollution of surface water environment.