Air pollution in 35 provinces, including Bangkok, has exceeded the 37.5µg/m³ threshold today, according to the Pollution Control Department.

Besides Bangkok, the other provinces affected are Pathum Thani, Nonthaburi, Nakhon Pathom, Samut Sakhon, Samut Prakan, Lampang, Uttaradit, Sukhothai, Phitsanuloke, Phichit, Nakhon Sawan, Uthai Thani, Chainat, Sing Buri, Lop Buri, Ang Thong, Suphan Buri, Ayutthaya, Kanchanaburi, Ratchaburi, Samut Songkhram, Prachuap Khiri Khan, Prachin Buri, Sa Kaeo, Chachoengsao, Chon Buri, Rayong, Trat, Nong Khai, Loei, Kalasin, Ubon Ratchathani and Nakhon Ratchasima.

The levels of PM2.5 in Bangkok and its vicinity today are 34.3-72.7µg/m³.

Elsewhere:

• Northern provinces, 9.6-59.1µg/m³
• North-eastern provinces, 18.7-60.8µg/m³
• Eastern provinces, 24.9-60.5µg/m³
• Southern provinces, 11.8-37.5µg/m³

The department forecasts that air pollution across most of the country will steadily ease over the next seven days.