四川盆地不同区域城市降水过程对PM2.5清除作用分析

林丹, 郭晓梅, 王维佳

Analysis on scavenging effect of precipitation processes on PM2.5 in different cities of Sichuan Basin

LIN Dan, GUO Xiaomei, WANG Weijia

图4 2016—2021年四川盆地各区域代表城市不同PM2.5初始质量浓度下清除率与降水强度的关系 （a）PM2.5初始质量浓度为35~75 μg·m-3，（b）PM2.5初始质量浓度高于75 μg·m-3

Fig.4 The relation of scavenging rate of rainfall processes with different precipitation intensities under different initial mass concentrations of PM2.5 in representative cities of different regions of Sichuan Basin during 2016-2021 （a） initial mass concentration of PM2.5 between 35 and 75 μg·m-3， （b） initial mass concentration of PM2.5 higher than 75 μg·m-3