摘要
通过实地监测,系统分析了青弋江芜湖市段水质状况。研究结果表明:(1)水体溶解氧含量较丰富,适合鱼类生长。化学需氧量(CODcr)、生化需氧量(BOD5)、总氮(TN)等已超出Ⅲ类水标准。(2)对单项污染指数(Ii)及综合指数(M)的测算和评价表明青弋江水体水质属重污染,为Ⅳ类水,主要污染因子为TN、CODcr、BOD5、氨氮等。在此基础上,提出了从污染源控制及加强管理等对青弋江水质进行改善。
Through monitoring on the spot, this article analyzes the water quality of the Qingyi River systematically. The findings indicates that the content of the Oxygen Dissolution（DO） in the water body is rich and makes it suitable for the living of fish. But the Chemical Oxygen Demand （COD）, the Biochemical Oxygen Demand（BOD） and the Total Nitrogen （TN） surpass the standard of class three in water quality. The data of Single Item pollution index and Carlson＇s Trophic Status Index （TSI） show that the water is polluted seriously and belongs to class four in water quality. On this basis, this article advocates improving the water quality of Qingyi River through the control of the pollution source and strengthening of management.
出处
《环境科学与管理》
CAS
2007年第6期162-164,共3页
Environmental Science and Management
基金
国家自然科学基金(40372097)
安徽省教育厅自然科学基金(2003kj033zd)资助
关键词
青弋江
污染
水质
Qingyi River
pollution
water quality
