Air pollution increases in upper northeastern regions of Thailand

According to the Pollution Control Department, 23 locations, primarily in the northern region of Thailand, have been found to contain high levels of particulate matter 2.5 micrometres or smaller in diameter (PM2.5). The most severe levels were identified in Chiang Mai. These concentrations are considered detrimental to human health.

As of 11am yesterday, PM2.5 dust levels in the north ranged between 98 to 277 micrograms per cubic meter (μg/m³) of air over the past 24 hours.

Hazardous air pollution was reported in 21 areas within the northern provinces of Chiang Mai, Chiang Rai, Lampang, Lamphun, Mae Hong Son, Nan, Phayao, and Phitsanulok.

PM2.5 levels in the north were as follows:

98μg/m³ in tambon Hang Dong of Chiang Mai’s Hot district.

108 in tambon Nai Muang of Phitsanulok’s Muang district.

117 in tambon Jong Kham of Mae Hong Son’s Muang district.

119 in tambon Chang…