Airborne pollution in 15 northern provinces has reach the Red level today, with the amount of PM2.5 dust in the atmosphere between 50.1µg/m³ and 182µg/m³, the Air Pollution Mitigation Centre reported on Saturday.
Mae Sai district in Chiang Rai province recorded the highest reading of 182µg/m³.
The 15 northern provinces with excessive PM2.5 today are 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 excessive PM2.5. They are 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 and Nakhon Ratchasima in the Northeast and Uthai Thani, Chainat, Suphan Buri, Kanchanaburi and Prachin Buri in the central region.
PM2.5 in north-eastern provinces ranges 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 excessive amounts of PM2.5 today.
In Bangkok and its suburbs today, PM2.5 readings range from 15.4µg/m³ to 35.3µg/m³, against the safe threshold of 37.5µg/m³.
According to the IQAir website, Chiang Mai is still has the world’s worst air quality today, with an AQI reading of 224 and PM2.5 measured at 173.6µg/m³.
