PUBLISHED: 2 Feb 2025 at 08: 11
According to the Geo-Informatics and Space Technology Development Agency ( Gistda ), 64 out of the 77 provinces in Thailand were covered in risky ultrafine dust pollution on Sunday morning.
Gistda reported at 7am on Sunday that 19 provinces had red levels ( hazardous to health ) of particulate matter 2.5 micrometers and less in diameter ( PM2.5 ).
Over the past 24 hrs, Sing Buri was exposed to the highest dark stage of PM2.5, which was 95. 5 microgrammes per cubic meter of air.
It was followed by Si Sa Ket (91.2µg/m³ ), Yasothon ( 85.3 ), Ubon Ratchathani ( 84.6), Trat ( 84.2 ), Lop Buri (83.9 ), Saraburi ( 82.1 ), Ang Thong ( 80.4), Kalasin ( 80.1 ), Roi Et (79.6), Surin ( 78.1 ), Chai Nat ( 78 ), Chachoengsao ( 75.7 ), Nong Khai ( 75.6), Samut Songkhram ( 75.4), Nakhon Phanom, ( 75.3 ) and Nong Bua Lam Phu ( 75.2 ).
The healthy level is 37.5µg/m³.
Thirteen regions had protected air quality. Nine regions had mild air quality, with PM2.5 amounts ranging from 25.2 to 36.6. In descending attempt, they were Phangnga, Nakhon Si Thammarat, Ranong, Surat Thani, Chumphon, Phrae, Phayao, Krabi and Chiang Rai.
Only Lampang ( 24 ) and Mae Hong Son ( 18.4 ) found good air quality.
Very good air was in Chiang Mai ( 14.9 ) and Lamphun ( 13.7 ).
Forty-seven other provinces faced orange levels ( starting to affect health ) of PM2.5 ranging from 41.5 to 74.7. They included Ayutthaya, Bangkok, Nan, Prachuap Khiri Khan, Phuket and Samut Prakan.
The image from Gistda shows heavy dust, represented with red and orange colors, in the Central Plain, the Northeast and the East on Sunday night.