Due to poor visibility caused by haze above Mae Hong Son airport in nothern Thailand, a private plane flying the acting US ambassador this morning cancelled a landing and returned to Chiang Mai International Airport. Smog has been a longstanding problem in northern Thailand and kicks up every year during burning season from February to April. Today, the local air pollution monitoring station recorded levels of PM2.5 at 98 micrograms per square cubic metre of air, over the safe threshold. The Meteorological Office recorded multiple hot spots in Northern regions, probably caused by weed burning and wildfires in Myanmar, leading to […]

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