Thirteen areas in the northern provinces, especially Chiang Mai and Chiang Rai, were found to have PM2.5 dust in the atmosphere at levels which exceed the 50-micron safety standard, with…
Read MoreThirteen areas in the northern provinces, especially Chiang Mai and Chiang Rai, were found to have PM2.5 dust in the atmosphere at levels which exceed the 50-micron safety standard, with…
Read MorePage 1 of 1