Chiang Mai doctor savages authorities as pollution levels soar
THE SMOG situation in the North has reached hazardous level, especially in Lampang, where the amount of particulate matter smaller than 2.5 microns (PM2.5) has increased beyond 200 milligrams per cubic metre of air.
Air quality in the northern region yesterday, measured by both the Pollution Control Department (PCD) and international air quality monitoring website, aqicn.org, showed that the PM2.5 level in many provinces was rising steadily.
