PM2.5 levels in the northern province hit 80 micrograms per cubic metre (μg/m3), higher than Thailand’s safe limit of 50 μg/m3.
Forest fires and cool morning temperatures were blamed for the toxic haze.
Residents of Phayao were advised to avoid outdoor activities and use personal protective equipment if necessary while keeping a close watch for respiratory symptoms.
Those who develop symptoms such as coughing, difficulty breathing, inflamed eyes, chest tightness, headache, irregular heartbeat, nausea or fatigue were advised to see a doctor.
Air pollution reached hazardous levels across much of the country on Monday. According to the Quality and Noise Management Bureau, PM2.5 was at unhealthy levels in Bangkok, Saraburi, Chiang Mai, Lampang, Phuket, Khon Kaen, Nakhon Ratchasima, Chiang Rai, Mae Hong Son, Nan, Lamphun, Phrae, Phayao, Loei, Tak, Nong Khai, Ubon Ratchathani, Phitsanulok, Nakhon Phanom, Sakon Nakhon, Roi Et, Kamphaeng Phet, Chaiyaphum, Kalasin, Uthai Thani, Phichit, Sukhothai, Uttaradit and Petchabun.
Published : March 01, 2021
By : The Nation