Levels of PM2.5 in the capital ranged from 28.9 to 56.2 micrograms per cubic metre, according to the Bangkok Air Quality Information Centre of Bangkok.
Levels above 37.5µg/m3 are categorised as “Orange Zone”, or potentially impacting health.
Bang Khok district registered the highest PM2.5 level on Wednesday at 56.2 µg/m3. The lowest level was 28.9 µg/m3 in Bang Phli district.
PM2.5 rose above the safe threshold in the following districts on Wednesday:
Bangkok Noi, Bangkok Yai, Bang Khun Thian, Bang Khae, Bang Khen, Bang Sue, Bang Na, Bang Bon Bang Phlat, Bang Rak, Bueng Kum, Chatuchak, Chom Thong, Don Muang, Din Daeng, Dusit, Khlong Toei, Khlong San, Khlong Samwa, Khan Na Yao, Latkrabang, Latphrao, Minburi, Patumwan, Prawet, Pom Prap Sattru Phai, Phaya Thai, Prakanong, Phra Nakon, Ratchathewi, Ratburana, Suan Luang, Saphan Sung, Samphanthawong, Sathorn, Taling Chan, Thawi Watthana, Thung Khru, Thon Buri, Wang Thonglang, Wattana, and Yannawa.
The Air Quality Management Centre advised people in Bangkok to take the following precautions to protect their health on Wednesday:
– Reduce time spent outdoors and use face masks if necessary – especially if you have respiratory or other underlying health conditions.
– Seek medical help if you experience symptoms such as coughing, shortness of breath, eye irritation, chest tightness, headache, irregular heartbeat, nausea, or fatigue.
The air quality can be checked via the AirBKK app and AirBKK.com, Bangkok Metropolitan Administration (BMA)’s website and Facebook, BMA's air quality and noise management division Facebook, and the Line app ALERT service and OA account @airbangkok.