Chiang Mai ranked sixth worst for air pollution globally

Breaking News March 18, 2018 15:09

By The Nation

Air pollution in the North continues to be critical, with small dust particles of 2.5 microns in size (PM2.5) exceeding safe limits at almost every air-quality testing station.

The Pollution Control Department (PCD) revealed on Sunday that although PM2.5 levels had dropped from the previous day at almost every station, the amounts were still higher than safe standards.......