太原采暖季霾和良天气下大气污染物的污染特征分析

Analysis of Pollutants Concentration Characteristics Taiyuan City in Haze and Clean Days of Winter

为了探讨太原市大气污染物在霾天气下的污染特征,2013年12月至2014年3月对太原市大气污染物(PM10、PM2.5、SO2、NO2、CO和O3)质量浓度进了收集研究。分析结果表明无论是霾还是良天气,PM2.5和PM10的相关性最好,PM2.5与NO2的相关性最差。O3与PM2.5的相关系数均大于0.7,表明O3与PM2.5的形成有着密切的关系。

Hourly mass concentrations of PM10、 PM2.5, SO2. NO2、 CO 和 O3 in the period of between December 2013 and March 2014 were collected and analyzed to clarify the pollution characteristics in the Taiyuan city. Whatever in the haze days or in the clean days PM2.5 and PM10 concentrations were well correlated, while the poorest correlation occurred between PM2.5 and NO2 concentrations. The correlation coefficient between O3 and PM2.5 reached more than 0. 7, suggesting the linkage between PM2.5 formation and O3 concentrations in the air.