Chiang Mai, Bangkok Ranked Among Top Ten Most Polluted Cities

BANGKOK, March 7 (TNA) – Chiang Mai and Bangkok were ranked sixth and ninth most polluted cities in the world for air quality respectively on Tuesday morning, according to Iqair.com

Chiang Mai was reported with a US AQI of 184 and Bangkok with 176 as of 10 am.

Levels of ultra-fine dust particles (PM2.5) exceeded the safety threshold in the capital, measured between 61-93 microgrammes per cublic meters, reported the Bangkok Metropolitan Administration. People are advised to refrain from outdoor activities and to wear a mask when going out.

Chiang Mai was shrouded by smog from forest fires with low visibility. A total of 87 hotspots were detected in the province on Monday.

Four northern provinces – Chiang Mai, Chiang Rai, Mae Hong Son and Lamphun reported 312 hotspots today.

PM 2.5 levels in Chiang Mai’s Muang district were measured between 74-85 microgrammes per cubic metre and as high as 113 microgramme per cubic metre in Hod district.  (TNA)