2015-2018 年吉林省空气超标污染物特征分析

Analysis on the characteristics of air pollutants exceeding the standard in Jilin Province from 2015 to 2018

从超标污染物指标分析吉林省重点城市2015-2018年超标污染物的时空分布情况。吉林省超标污染物主要以PM10、PM2.5、O3为主,长春、吉林、四平超标污染天数最多,延吉最少。2015年-2018年PM10、PM2.5超标天数下降明显,超标污染物的年均值呈明显下降趋势。O3超标污染天数变化不明显,超标污染物的年均值呈上升趋势,所占比例越来越大。冬季以PM10、PM2.5超标为主,夏季以O3超标为主。

This paper analyzes the spatial and temporal distribution of over standard pollutants in key cities of Jilin Province from 2015 to 2018.In Jilin Province,PM10,PM2.5 and O3 are the main pollutants,while Changchun,Jilin and Siping have the most days and Yanji the least.From 2015 to 2018,the number of days exceeding the standard of PM10 and PM2.5 decreased significantly,and the average annual value of pollutants exceeding the standard decreased significantly.The number of days of O3 pollution is not obvious,and the average annual value of O3 pollution is on the rise.In winter,PM10 and PM2.5 exceeded the standard,while in summer,O3 exceeded the standard.