By The Nation
In the northern region, they measured between 20-134 micrograms per cubic metre. The Thai government standard is under 50mcg per cubic metre while the World Health Organisation recommends 25mcg per cubic metre.
The amount of dust in the air is likely to increase in many areas compared to Saturday. Five areas have been warned of extremely high dust:
Na Chak subdistrict in Muang district, Phrae province (104); Phrabat subdistrict in Muang district, Lampang province (110); Mae Moh subdistrict in Mae Moh district, Lampang province (85); Sob Pad subdistrict in Mae Moh district, Lampang Province (82); Ban Dong subdistrict in Mae Moh district, Lampang province (134).
The PCD has urged people in such areas to monitor the dust situation and wear a mask at all times when doing outdoor activities. It has also asked the public to refrain from burning in open spaces.