Every year after the rainy season, the cool weather brings another culprit that steals the livelihood and health of many locals living in Chiang Mai and ethnic groups living in the mountains: severe air pollution known as PM2.5, a measure of particulate matter.

CHIANG MAI Governor Pawin Chamniprasart has taken legal action against the magazine Citylife Chiang Mai for posting on social media a painting featuring three late kings wearing masks.