大气环境质量现状评价模型存在的问题及改进——以沈阳大气指数模型为例

Problems and Improvements to Air Quality Model——Take Shenyang Model for Example

文章分析了几类大气环境质量现状评价模型各自存在的问题,针对这些问题,选择了较典型的沈阳大气指数模型,首先对原模型中参数进行修正,使其成为与当前执行的环境空气质量标准相对应的综合指数模型,其次,基于概率统计思想对模型进行改进,得到不同保证率下的大气环境质量现状评价模型,最后,运用SPSS软件进行实证分析,改进后模型得到的评价结果更能准确反映区域实际大气环境质量现状。

This paper analyses the problems of several types of air quality evaluation model,to solve these problems,choose Shenyang model.First,amends to the original model parameters,making it in line with the current ambient air quality standards;Second,improving the model on the basic of statistical ideology and getting atmospheric environmental quality evaluation model under different guaranteed rate;At last,using SPSS to do empirical analysis,results form improved model can more exactly show the the actual status of the regional air quality.