Most of the upper North has been covered in smog for about a week, with popular tourist destinations like Chiang Mai and Chiang Rai struggling with poor air quality.
The polluted air reportedly causes skin and eye irritation as well as respiration difficulties and other problems.
Most Chiang Mai residents have been wearing face masks as small dust particles in the air peaked Tuesday, measuring 168 micrograms per cubic metre of air in Muang district’s Tambon Chang Phuak.
“With such a high level of pollution, people’s health is being affected,” Prayad Ananpradit said Tuesday in his capacity as acting director of Chiang Mai Natural Resources and Environment Office. For people’s safety, dust particles should not exceed 120mcg per cubic metre of air.