Forty-three provinces, including Bangkok and its suburbs, remain blanketed in smog, with PM2.5 dust levels over the safe limit of 50 microgrammes per cubic metre (ug/m3) on Friday morning, the Pollution Control Department reported.
The 43 provinces were Bangkok, Pathum Thani, Nonthaburi, Nakhon Pathom, Samut Sakhon, Samut Prakan, Chiang Rai, Chiang Mai, Nan, Mae Hong Son, Phayao, Lampang, Phrae, Lamphun, Uttaradit, Sukhothai, Tak, Phitsanulok, Kamphaeng Phet, Phichit, Phetchabun, Nakhon Sawan, Uthai Thani, Sing Buri, Lop Buri, Saraburi, Suphan Buri, Ayutthaya, Ratchaburi, Samut Songkhram, Phetchaburi, Prachuap Khiri Khan, Sa Kaeo, Chachoengsao, Chon Buri, Bueng Kan, Loei, Udon Thani, Nakhon Phanom, Nong Bua Lam Phu, Chaiyaphum, Nakhon Ratchasima and Buri Ram.
