红水河上游重金属分布及污染评价  

Distribution of Heavy Metals in the Upstream of Honghe River and Pollution Assessment

作　　者：王璐[1] 支崇远[1] 周玉春[1] 油秋平[1] 

机构地区：[1]贵州师范大学生命科学学院,贵州贵阳550001

出　　处：《安徽农业科学》2013年第8期3626-3627,3717,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(41062005;30560011);贵州省科技基金项目(黔科合外G字[2012]7023);贵州省科技厅科技支撑计划(黔科合SY字[2012]3178);研究生专项创新基金项目[研(2012)15]

摘　　要：对珠江流域红水河上游河水29个样点重金属元素含量进行分析,采用单因子指数法和内梅罗指数法对其重金属污染程度进行评价。结果表明,红水河上游河水中重金属Pb的含量为2.15～19.7μg/L,Cd的含量为0～5.12μg/L,Cr的含量为0.52～1.6μg/L,Cu的含量为3.55～12.2μg/L。3个采样河段Cd的单因子污染指数>1.0,说明Cd超标;支流1和主流上游河段内梅罗指数>1.0,为轻度污染;支流2内梅罗指数<1.0,为污染警戒。The heavy metal content in twenty-nine sampling sites in the upstream of Honghe River of Pearl River Basin was analyzed.The single-factor index method and Nemerow index were adopted to evaluate the heavy metal pollution degree.The results showed that the contents of Pb,Cd,Cr and Cu were 2.15-19.7,0-5.12,0.52-1.6 and 3.55-12.2 μg/L.The single pollution index of Cd >1.0,indicating exceed the standard;Nemerow index of branch 1 and upstream>1.0,indicating light pollution;Nemerow index of branch 2<1.0,indicating pollution alert boundary.

关 键 词：重金属 污染 评价 红水河 

分 类 号：S273.2[农业科学—农业水土工程]