北方某市2020年7月-9月环境空气臭氧污染特征分析

Analysis on the characteristics of ambient air ozone pollution in a northern city from July to September in 2020

在对2020年7月~9月某市环境空气主要环境空气污染物浓度水平及其变化特征进行分析的基础上,评价了某市的环境空气质量,初步研究了该市臭氧污染特征。结果显示,2020年7月~9月期间,该市环境空气中首要污染物以臭氧为主;7月~8月为臭氧污染相对较严重的月份,尤其是7月达到臭氧重度污染,因此7月是某市臭氧污染防治关键时期。国控点位的LDJ、DLL、TYJ是发生臭氧污染较为严重的点位,为该市需要重点关注的监测点位。

Based on the analysis of the concentration level and variation characteristics of main ambient air pollutants in the ambient air of a city from July to September in 2020,the ambient air quality of a city is evaluated,and the characteristics of ozone pollution in the city are preliminarily studied.The results show that the primary pollutant in the ambient air of the city is ozone from July to September in 2020.July to August are the months with relatively serious ozone pollution,especially when severe ozone pollution is reached in July.Therefore,July is a key period for the prevention and control of ozone pollution in a city.LDJ,DLL and TYJ of state-controlled points are the points with serious ozone pollution,which are the monitoring points that need to be paid special attention to in the city.