Hazardous Ultrafine Dust Hits 50 Provinces In Thailand

Hazardous levels of ultrafine dust engulfed 50 Thai provinces today, as reported by the Geo-Informatics and Space Technology Development Agency (GISTDA). The Central Plains and the Mortheast were the hardest hit regions.

GISTDA’s 7am update on its website PM25.gistda.or.th today, December 11, highlighted that mostly central plains and northeastern provinces were among the 50 out of 77 provinces cloaked in dangerous concentrations of particulate matter 2.5 micrometres or less in diameter (PM2.5). The PM2.5 levels for the past 24 hours ranged from 37.7 to 96.6 microgrammes per cubic metre of air, surpassing the government’s safety threshold of 37.5µg/m³.

Sing Buri had the highest recorded level at 7am, with 96.6µg/m³, followed by Kalasin with 89.8µg/m³, Chai Nat with 85.0µg/m³, Nong Khai with 82.2µg/m³ and Ang Thong with 77.1µg/m³. These…