The air quality in #Bangkok is unhealthy for sensitive groups again on Thurs aft 3 days of respite. It ranks at # 17 among the most air-polluted major cities in the world, just behind #ChiangMai, which is # 16, according to IQAir app. (Photo by @pravitr) #Thailand #PM25 #ฝุ่นพิษ
#Bangkok #ChiangMai #Thailand #PM25 #ฝุ่นพิษ