Chiang Mai Ranks World’s Worst Air
CHIANG MAI, March 9 (TNA) – People in many northern provinces were suffering from thick smog as one of them, Chiang Mai, became the place of the world’s worst air pollution. Smoke haze covered Chiang Mai and its Doi Suthep mountain was virtually invisible. At 4pm on Monday, the AirVisual website ranked Chiang Mai as […]












