Smog blanketed Greater Bangkok on Tuesday morning with the worst pollution in Wang Thonglang district of the capital city.

The Pollution Control Department reported that levels of particulate matter 2.5 micrometers and less in diameter ranged from 39 to 73 microgrammes per cubic metre of air over the past 24 hours. The local safe threshold is set at 50mcg.

The worst pollution was detected on Soi Lat Phrao 95 and Lat Phrao Road in Wang Thonglang.

Other areas in Bangkok with unsafe PM2.5 levels were in Thon Buri, Bang Khunthian, Bang Na, Pathumwan, Thon Buri, Din Daeng, Bung Kum, Klong Sam Wa, Chom Thong, Phra Khanong, Rat Burana, Bang Phlad, Bang Khae, Dusit, Pomprap Satruphai, Samphanthawong, Phaya Thai, Bang Rak, Sathon, Bang Kho Laem, Don Muang, Bang Kapi, Lat Krabang, Phasi Charoen, Thawi Wattana, Taling Chan, Nong Khaem, Khlong Toei and Bang Sue.

Similar readings were detected in adjacent areas – Phra Pradaeng and Muang districts of Samut Prakan; Klong Luang district of Pathum Thani; Muang and Krathum Baen districts of Samut Sakhon; and Muang district of Nakhon Pathom.

The Pollution Control Department advised people in these areas to reduce their outdoor activities.

Air quality was expected to improve from Feb 9 to 15 as winds picked up.

Bangkok air unsafe, again