It summarizes shortages of present water quality evaluate methods, and puts forward water pollution index evaluate methods, then explains detailedly its definition, calculate methods.
在总结分析现有水质评价方法的基础上，提出了水污染指数评价法，并对其定义、计算方法进行了详细介绍。
Methods Introducing the Fuzzy information diffusion method to evaluate the water environment quality of Xi′an city, and using correspondence analysis to analyze the main pollution cause of sections.
方法首先采用一维模糊信息分配方法对水环境质量进行评价，其次应用对应分析法对各断面的污染成因进行分析。
By analysing the datum about water quality and draining of waste water, this paper was to evaluate the questions of water environment, and to find some methods, which can solve these questions.
通过对本区水质监测资料、废水排放资料的分析，评价区域水资源污染情况，找出目前主要的水环境问题，提出解决区内水环境问题的途径或措施。
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