Air pollution in 15 northern provinces has reached the Red level today, with the level of PM2.5 particles in the air ranging from 50.1µg/m³ to 182µg/m³, as reported by the Air Pollution Mitigation Centre on Saturday.
Mae Sai district in Chiang Rai province recorded the highest level of 182µg/m³.
The 15 northern provinces with high levels of PM2.5 today include Chiang Rai, Chiang Mai, Nan, Mae Hong Son, Phayao, Lamphun, Lampang, Phrae, Uttaradit, Sukhothai, Phitsanuloke, Tak, Kamphaeng Phet, Phichit, and Phetchabun.
Several other north-eastern provinces and some central provinces are also affected by high levels of PM2.5. These include Bueng Kan, Nong Khai, Loei, Udon Thani, Nakhon Phanom, Nong Bua Lamphu, Sakhon Nakhon, Mukdahan, Khon Kaen, Kalasin, Roi-et, Amnat Charoen, Chaiyaphum, Yasothon, Ubon Ratchathani, Nakhon Ratchasima in the Northeast, and Uthai Thani, Chainat, Suphan Buri, Kanchanaburi, and Prachin Buri in the central region.
PM2.5 levels in north-eastern provinces range from 26.5µg/m³ to 87.9µg/m³, while readings in the central and western regions range from 23µg/m³ to 72.7µg/m³. Only two eastern provinces have high levels of PM2.5 today.
In Bangkok and its surrounding areas today, PM2.5 readings range from 15.4µg/m³ to 35.3µg/m³, which is below the safe threshold of 37.5µg/m³.
According to the IQAir website, Chiang Mai currently has the world’s worst air quality with an AQI reading of 224 and PM2.5 measured at 173.6µg/m³.