BANGKOK — Thursday morning saw the return of smog in Bangkok which, according to Pollution Control Department, should be blamed on traffic congestion and stagnant air.
Unsafe levels of particulate matter 2.5 micrometers and less in diameter (PM2.5) were reported on 50 of the 58 air quality stations in Bangkok on Feb 20, said Pralong Damrongthai, chief of PCD.
Areas with unsafe air quality in Bangkok included Bang Kapi, Bang Khunthian, Bang Na, Din Daeng, Pathumwan, Phaya Thai, Thon Buri, Wang Thonglang and Yannawa districts.
Meanwhile, areas outside Bangkok where thick smog was reported were Muang district of Nakhon Pathom; Bang Kruai and Pakkret districts of Nonthaburi; Klong Luang and Muang districts of Pathum Thani; Phra Pradaeng and Muang districts of Samut Prakan; and Krathum Baen and Muang districts of Samut Sakhon.
Mr Pralong said greater Bangkok suffered heavy congestion on many roads from Wednesday afternoon to Thursday morning, while air was stagnant in many areas.
Upcountry, unsafe PM2.5 levels covered Mae Sot district of Tak; Muang district of Nan, Muang district of Phayao; Muang and Mae Mo districts of Lampang; Mae Sai and Muang districts of Chiang Rai; Muang district of Chiang Mai; Muang district of Phrae; and Muang district of Mae Hong Son.
Source: Bangkok Post
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