岳阳王家河沉积物中汞的污染特征及风险评价  

The Characteristics of Mercury Pollution and Risk Assessment of the Sediments in the Wangjia River of Yueyang City

作　　者：姜会浩[1] 余纯[1] 杨迎春 郑志辉[1] JIANG Huihao;YU Chun;YANG Yingchun;ZHENG Zhihui(China Construction Second Engineering Bureau Co.,Ltd.,Beijing 101101,China)

机构地区：[1]中国建筑第二工程局有限公司,北京101101

出　　处：《施工技术》2020年第18期3-5,共3页Construction Technology

基　　金：中建二局科技研发课题:水环境综合治理技术研究与应用(180001)。

摘　　要：以湖南岳阳王家河沉积物中的汞为分析对象,采集王家河流域10个不同流段监测点处的表层样,分析沉积物中汞的含量、污染特征、污染程度,并初步调查沉积物中汞的来源,应用潜在风险指数法分析重金属汞在沉积物中的污染特征和风险评价。研究结果表明王家河流域受两岸排水不规范等原因影响,存在极强的汞污染,为王家河河道治理方案的选择提供依据。Taking the mercury of the sediments in the Wangjia River of Yueyang City as the object,the study collects the surface samples from ten different segments monitored in the Wangjia River. The amount of mercury in the sediments,the characteristics of pollution and the degree of pollution are analyzed. A preliminary investigation into the source of mercury is conducted. The risk index method is used to analyze the characteristics of pollution and risk assessment concerning mercury the heavy metal. The results of the study show that the Wangjia River is heavily polluted by mercury due to irregular drainage on both sides of the river,so as to provide the basis for the selection of the schemes for treating the river.

关 键 词：水治理 污染 重金属 风险 评价 

分 类 号：X522[环境科学与工程—环境工程]