基于分类检验的环境空气治理持续效应评价——以西安市为例

Evaluation of Environment Air Management Effect Based on Classification Analysis——Taking Xi′an City As an Example

通过构造F统计量对有序样本分类,基于分类检验法对空气质量影响因子含量变化进行显著性分析,进而对政府治理环境的效应进行评价。利用西安市2013年12月至2015年3月,以及2014年12月至2016年3月这两个时间段的空气指数等相关数据,对西安市环境治理效应进行评价,结果表明西安市在PM2.5、PM10、SO_2、CO和NO_2的治理方面有明显的改善,对O_3的治理需要进一步加强。

Ordinal samples are classified by structuring F-statistics. Significance analysis is conducted on content changes of air quality influencing factors based on classification test, so the evaluation of governmental management effect on environment is given. With the data of air quality index from Dec. 2013 to Mar. 2015,and from Dec. 2014 to Mar. 2016 in Xi＇an City, an evaluation is made on environmental management effect of Xi＇ an City. It shows that significant improvements are made in controlling PM2.5,PM10、SO2 ,CO and NOz ,but the control of 03 need to be improved.