Unsafe smog levels covered most of greater Bangkok on Monday morning, with the worst air in Bangkok’s Lat Krabang district and Samut Prakan’s Muang district, the Pollution Control Department reported.
The levels of particulate matter 2.5 micrometre and less in diameter (PM2.5) ranged from 42-77 microgrammes per cubic metre of air over the previous 24 hours. The government-set safe threshold is 50mcg.
Unsafe levels were reported in the following districts:
Bangkok
Bang Kapi
Bang Khunthian
Bang Na
Din Daeng
Pathumwan
Phaya Thai
Thon Buri
Wang Thonglang
Yannawa
Nonthaburi
Bang Kruai
Pak Kret
Pathum Thani
Klong Luang
Samut Prakan
Muang
Phra Pradaeng
Samut Sakhon
Krathum Baen
In other provinces, PM2.5 levels ranged from 15 to 128mcg. The lowest was in Betong district of Yala and the highest in Sri Maha Phot district of Prachin Buri.
Unsafe levels were detected in some districts of Ayutthaya, Chachoengsao, Chon Buri, Kanchanaburi, Khon Kaen, Lampang, Loei, Nakhon Ratchasima, Nakhon Sawan, Nan, Phayao, Phrae, Ratchaburi, Rayong, Sa Kaeo, Saraburi, Suphan Buri and Tak provinces.