Fifty-two out of 76 provinces across Thailand, including Bangkok and its suburbs, were found with harmful levels of PM2.5 dust above the safe limit of 50 microgrammes per cubic metre (mcg/m3), on Thursday morning, the Pollution Control Department (PCD) said.
The affected 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, Kamphaeng Phet, Phichit, Phetchabun, Nakhon Sawan, Uthi Thani, Sing Buri, Lop Buri, Saraburi, Ang Thong, Suphan Buri, Ayutthaya, Kanchanaburi, Ratchaburi, Samut Songkhram, Prachuap Khiri Khan, Sa Kaeo, Chachoengsao, Chon Buri, Rayong, Bueng Kan, Nong Khai, Loei, Udon Thani, Nakhon Phanom, Nong Bua Lam Phu, Sakon Nakhon, Mukdahan, Khon Kaen, Kalasin, Roi Et, Chaiyaphum, Ubon Ratchathani, Si Sa Ket, Nakhon Ratchasima and Buri Ram.
