长治市2021年第三季度环境空气污染特征分析

Analysis on characteristics of ambient air pollution in Changzhi City in the third quarter of 2021

主要对长治市2021年第三季度环境空气质量及污染特征进行了分析。结果显示,2021年第三季度六项参数贡献最高的污染物为O_(3)、PM_(2.5)和PM_(10),贡献率占比分别为30.38%、21.11%、19.21%,主要贡献污染物为O_(3);PM_(10)平均质量浓度较高的点位为长治八中站点,审计局站点NO_(2)平均质量浓度较高,长治八中站点9月NO_(2)有升高趋势。

This paper mainly analyzes the ambient air quality and pollution characteristics of Changzhi in the third quarter of 2021.The results show that the pollutants with the highest contribution of six parameters in the third quarter of 2021 are O_(3) and PM_(2.5) and PM_(10),the contribution rates are 30.38%,21.11%and 19.21%respectively,and the main contribution pollutant is O_(3).The point with higher average mass concentration of PM_(10) is Changzhi No.8 middle school station,and the average mass concentration of NO_(2) at the audit bureau station is higher.The NO_(2) at Changzhi No.8 middle school station has an upward trend in September.