Wed, October 20, 2021


Air quality unhealthy in 36 provinces, including 14 Bangkok districts

Air pollution in 14 districts around Bangkok and its vicinity hit unsafe levels on Friday morning with PM2.5 readings coming in at 52 to 114 micrograms per cubic metre (μg/m3), the Pollution Control Department reported.

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.

The PM2.5 situation can be followed via the website or smartphone app, or via

Published : January 22, 2021

By : The Nation