The issue was resurrected by the wildfire smoke scenario in 17 northern provinces; the air quality was at the critical level that affects health, rising to 17 points out of a possible 32.
By today, the North’s smog crisis has returned in full force (May 5). 17 northern provinces were rated on the red scale by the Pollution Control Department’s Air Quality Monitoring in year (y.66), affecting 17 of the 32 health concerns.
At T. Wiang Tai, Pai, 336 micrograms per cubic meter, more than 6 times higher than standard and highest in the North, the dust content of PM 2.5 is constantly high above all 3 standard points, particularly in Mae Hong Son Province. Due to the illegal burning of forests, where up to 40 heat sites have been identified, it is situated in Mueang na Subdistrict, Chiang Dao District, the Northern District of Chiang Mai Province.
As a result, the dust concentration there is 250 micrograms per cubic meter. Recently, the province of Chiangmai declared the following areas in the Chiangdao district as disaster relief zones: Moo 1,2,5,13 Mueang Na, and Moo 2,4,6 Thung Khao district.
While the smoke and dust situation in Wiang Phang Kham, Mae Sai district, Chiang Rai province has improved during the previous one to two days, it has just been discovered that the amount of dust stored in the air has increased again, measuring 231 micrograms per cubic meter. Added provinces include Lamphun, Phrae, Nan, and Phayao. There has been better air quality and more dust.