Air in Bangkok clears, as 24 provinces struggle with high PM2.5
Air quality in Bangkok and its vicinity improved on Tuesday morning, with PM2.5 (particles less than 2.5 micrometres in diameter) readings coming in between 14 and 36 micrograms per cubic metre (μg/m3) of air, the Bangkok Air Pollution Coordination Centre reported.
Bangkok's Wang Thong Lang district had the highest reading at 36μg/m3, while Samut Prakan's Bang Prong subdistrict and Samut Sakhon's Mahachai subdistrict had the lowest readings at 14μg/m3.
The centre said outdoor activity was safe in Bangkok and its vicinity.
However, the Air Quality and Noise Management Bureau reported that air quality had hit unsafe levels on Tuesday in Chiang Mai, Lampang, Khon Kaen, Chiang Rai, Mae Hong Son, Lamphun, Phrae, Phayao, Loei, Nan, Tak, Nong Khai, Ubon Ratchathani, Phitsanulok, Nakhon Phanom, Sakon Nakhon, Roi Et, Kamphaeng Phet, Chaiyaphum, Kalasin, Phichit, Sukhothai, Uttaradit and Petchabun provinces.