Humans are responsible for over in northern Thailand, and PM2.5 atmospheric pollution in the region is projected to worsen before improving, according to Pinsak Suraswadi, Director-General of the Pollution Control Department.

Source: https://www.chiangraitimes.com/news/fires-in-northern-thailand/

Pinsak blames hotspots for the deteriorating air quality in the nation’s northern and northeastern areas and Bangkok.

Source: https://www.chiangraitimes.com/news/thailand-to-reduce-the-50-micron-of-pm2-5-safety-standard-to-37-5-microns/