By The Nation
Thailand’s standard for safe levels of PM2.5 (particles less than 2.5 micrometres in diameter) is 50μg/m3.
The 33 districts where air pollution hit unsafe levels were:
In Bangkok: Bueng Kum (72μg/m3), Nong Chok (72μg/m3), Bang Kapi (67μg/m3), Lat Krabang (66μg/m3), Don Muang (64μg/m3), Prawet (63μg/m3), Bang Khen (63μg/m3), Thawi Watthana (62μg/m3), Klong Toei (62μg/m3), Lak Si (61μg/m3), Bangkok Yai (60μg/m3), Minburi (60μg/m3), Wang Thonglang (60μg/m3), Yannawa (59μg/m3), Bangkok Noi (58μg/m3), Taling Chan (58μg/m3), Phra Nakhon (58μg/m3), Bangna (57μg/m3), Chatuchak (57μg/m3), Khlong San (56μg/m3), Bang Sue (56μg/m3), Phasi Charoen (55μg/m3), Khlong Sam Wa (54μg/m3), Khan Na Yao (54μg/m3), Samphanthawong (54μg/m3), Suan Luang (54μg/m3), Bang Bon (53μg/m3), Pathumwan (53μg/m3), Phya Thai (53μg/m3), Lat Phrao (52μg/m3), Dusit (51μg/m3), Chom Thong (51μg/m3) and Bang Phlat (51μg/m3).
Air quality also is at unhealthy levels in Pathum Thani, Nonthaburi, Samut Sakhon, Samut Prakarn, Chiang Rai, Phayao, Chiang Mai, Nan, Lampang, Phrae, Sukhothai, Phitsanulok, Tak, Kamphaeng Phet, Phichit, Phetchabun, Uthai Thani, Lopburi, Saraburi, Suphan Buri, Ayutthaya, Prachinburi, Chachoengsao, Chonburi, Rayong, Nong Khai, Khon Kaen, Chaiyaphum and Nakhon Ratchasima provinces.
PM2.5 readings in different regions:
North: 34 to 79 μg/m3.
Northeast: 36 to 72 μg/m3.
Central and West: 34 to 86μg/m3.
East: 32 to 58μg/m3.
South: 9 to 33μg/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.