哈尔滨市大气中TSP、PM_(10)和PM_(2.5)相关性分析

对哈尔滨市大气环境中的TSP、PM10、PM2.5进行了采集和质量浓度的分析。实验结果表明:细颗粒(PM2.5)所占比例全年变化比较明显,1月、10月、11月和12月含量较高,均占到总量的55%以上,同时PM2.5/PM10也处于全年最高值,说明此期间细颗粒污染较为严重,环境危害较大;PM10含量全年变化相对稳定,PM10/TSP变化幅度仅为0.71~0.79,说明全年颗粒物质量分布的变化主要由PM2.5和PM2.5-10引起。根据TSP和PM10、PM10和PM2.5之间的相对关系曲线可以看出,两种大气颗粒物均来自相似的污染源,且污染源排放大气颗粒物的粒度分布长期比较稳定,而PM10和PM2.5的相关系数R值为0.973,也具备一定的相关性,可认为两者的变化趋势是一致的。

Analysis of the Correlation of TSP,PM10 and PM2.5 in Harbin Atmosphere

The TSP, PM10, PM2.5 data from the atmospheric environment in Harbin were sampled and the mass concentration was analyzed. The experimental results showed that the proportion changes of the fine particles （PMzs） were more obvious and higher in January, October, November and December, in which accounted for more than 55% of the total atmospheric particulate matter, while the PM2.5/PM10 was also the highest. It was indicat- ed that the fine particle pollution was serious during this period and had a great harm to environment. The content change of PM10 was relatively sta- ble throughout the year and the variation range of PM10/TSP was only from 0.71 to 0.79, which indicated that the mass distribution variations of the particle were mainly caused by PMz5 and PM2.5-10. According to the correlation curve between TSP and PM10, PM10 and PM2.5, it could be seen that these two kinds of atmospheric particles were from similar pollution sources, and the size distribution of atmospheric particulate from the pollution source were stable for a long time. The coefficient correlation between PMI0 and thePM2.5 was 0.973, which showed a certain relationship and could be considered as having a same variation trend.