Fig. 1From: The association between air pollution and the daily hospital visits for atrial fibrillation recorded by ECG: a case-crossover studyDaily data of AF recorded by ECG and the prevalence of AF with air pollution from 2015 to 2018. A Shows the PM2.5, PM10, O3 and the daily visits of AF; B shows the SO2, NO2, CO and the daily visits of AFBack to article page