Fig. 5From: Effects of particulate matter (PM) on childhood asthma exacerbation and control in Xiamen, ChinaThe association between PM exposure and DCR for childhood asthma. Panel (a):Time series of PM and DCR for childhood asthma during the study period. Panel (b): Distribution of PM exposure and DCR. PM2.5 (blue) and PM10 (red) were indicatedBack to article page