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Application of Comprehensive Water Quality Identification Index and Correspondence Analysis To Water Quality Assessment of Qiusuo River
Author(s): 
Pages: 190-194
Year: Issue:  9
Journal: Environmental Science and Management

Keyword:  campusriverwaterqualityidentificationindexmethodassessmenttemporalandspatialvariationcorrespondenceanalysispollutionfactor;
Abstract: 以三峡大学的校园河道求索溪为研究对象,利用综合水质标识指数法确定求索溪水质类别,分析其水质时空变化规律,并利用对应分析法得出求索溪中不同监测点的主要污染因子.研究结果表明:求索溪整体的综合水质标识指数为7.423,整体水质为劣V类(地表水环境质量标准GB 3838-2002)且黑臭.从时间变化来看,求索溪4月份的水质最差,5月份次之,4、5月份所有监测点的水质都劣于V类且黑臭;8月份水质最好,水质为Ⅳ类;从空间分布来看,8个监测点综合水质标识指数均超过6.0,水质为劣V类,其中6号监测点的水质相对最好,监测点3号的水质相对最差;对应分析法得出求索溪的整体水体污染程度受总氮因子的影响最大,其次为总磷.该研究拟为求索溪及类似校园河道的水环境治理研究提供基础依据和参考.
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