Haze to cover North as fire hotspots rise
Chiang Mai locals told to stay indoors
CHIANG MAI: The concentration of airborne ultra-fine dust particles in several northern provinces soared beyond safe limits on Wednesday, as hundreds of active fire hotspots were detected in the region.
Chiang Mai, in particular, experienced a massive drop in air quality yesterday, with levels of both the ultrafine PM2.5 pollutants and the larger, PM10 dust particles hitting levels considered to be unhealthy — especially for younger children, the elderly, pregnant women and individuals with underlying respiratory and/or cardiovascular diseases.
Due to the worsening haze, residents have been advised to avoid all outdoor activities, a local source said.
According to readings from air quality monitoring station in tambon Chang Khoeng in…
