Chiang Mai: , 8 March – People in many northern provinces are still choking on toxic smog and dust for 3 days now. In some places, hourly dust levels are higher than 600 micrograms/cubic meter, including Chiang Mai Province, which is still rising today. Ranked number 1 in the world’s most polluted cities for many hours And it has begun to have some impact on people’s health.
Source: Thai News Agency