CHIANG RAI, March 11 (TNA) – The haze situation in Chiang Rai is worrying and tends to worsen, particularly in Mae Sai district.
The PM2.5 particulate matter was reported outside the Mae Sai public health office at 114 microgrammes per cubic metre and PM10 at 140 microgramme per cubic metre.
Full story: tnamcot.com
TNA
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