By The Nation
Thailand’s standard for safe levels of PM2.5 (particles less than 2.5 micrometres in diameter) is 50μg/m3.
The 14 districts where air pollution hit unsafe levels were:
In Bangkok: Bang Khun Thian (114μg/m3), Bangna (92μg/m3), Prawet (94μg/m3), Thonburi (92μg/m3), Bangkok Yai (92μg/m3), Thawi Watthana (92μg/m3), Nong Khaem (97μg/m3), Bang Bon (97μg/m3), Thung Khru (91μg/m3), Chom Thong (97μg/m3) and Bang Khae (95μg/m3).
In Samut Prakan: Muang (100μg/m3) and Bang Sao Thong (94μg/m3)
In Samut Sakhon: Muang (108μg/m3).
The other regions where air quality was unhealthy are in Pathum Thani, Nonthaburi, Nakhon Pathom, Mae Hong Son, Phayao, Chiang Mai, Lampang, Phrae, Uttaradit, Sukhothai, Phitsanulok, Tak, Kamphaeng Phet, Phichit, Uthai Thani, Lopburi, Saraburi, Suphan Buri, Phra Nakhon Si Ayutthaya, Kanchanaburi, Prachinburi, Sa Kaeo, Chachoengsao, Ratchaburi, Samut Songkhram, Chonburi, Rayong, Nong Khai, Nakhon Phanom, Khon Kaen, Roi Et, Chaiyaphum and Nakhon Ratchasima provinces.
Readings in different regions:
North: PM2.5 at 33 to 71μg/m3.
Northeast: PM2.5 at 36 to 117μg/m3.
Central and West: PM2.5 at 55 to 86μg/m3.
East: PM2.5 at 40 to 62μg/m3.
South: PM2.5 at 12 to 39 μg/m3.
People in areas where PM2.5 pollution is bad have been advised to monitor their health and reduce time spent on outdoor activities, especially the elderly, children, and patients with respiratory diseases.