TOPSHOT - Smog covers the mountain scenery as seen from Doi Suthep Buddhist temple in the northern Thai province of Chiang Mai on April 3, 2019. - The city has far eclipsed other notorious pollution hotspots since March 31, with the level of dangerous microscopic particles known as PM2.5 peaking at 480 according to the Air Quality Index. (Photo by Lillian SUWANRUMPHA / AFP) (Photo credit should read LILLIAN SUWANRUMPHA/AFP/Getty Images)
