On Monday night, fine sand levels reached a record high in several northeastern provinces, including Chiang Mai and Chiang Rai, while air quality in the South was reportedly excellent or very great.
At 10 a.m., the Geo-Informatics and Space Technology Development Agency ( Gistda ) discovered unsafe levels of particulate matter 2.5 micrometers and less in diameter ( PM2.5 ) were within the orange range ( starting to affect health ) at 37.9 to 57.6 microgrammes per cubic meter of air over the previous 24 hours. The government-set secure stage is , 37.5µg/m³.
The northeastern province of Lamphun recorded the highest levels of 57.6µg/m³, followed by 57.4 in Lampang, 55.5 in Phrae, 55.2 in Chiang Rai, 53.5 in Phayao, 53.2 in Phetchabun, 53.1 in Tak, 52.7 in Uttaradit, 52.4 in Chiang Mai, 52.3 in Nan, 51.4 in Mae Hong Son, 49.9 in Sukhothai, 49.6 in Phitsanulok and 49.2 in Kamphaeng Phet. These counties are all located in the north.
Other regions blanketed by peach levels of PM2.5 were, in descending purchase, Loei, Mukdahan, Phichit, Nong Bua Lam Phu, Chaiyaphum, Buri Ram, Nakhon Phanom, Kanchanaburi, Phetchaburi, Sakon Nakhon, Nong Khai, Ubon Ratchathani, Prachuap Khiri Khan, Udon Thani, Prachin Buri, Khon Kaen, Yasothon, Si Sa Ket, Amnat Charoen, Uthai Thani, Roi Et, Surin, Nakhon Ratchasima, Maha Sarakham, Sa Kaeo, Ratchaburi, Chachoengsao, Kalasin, Nakhon Sawan, Suphan Buri, Samut Songkhram, Bueng Kan, Lop Buri and Nakhon Pathom.
Fourteen places in the Central Plain and the East had mild air superior, in descending order of PM2.5 rates, Chai Nat, Chon Buri, Chanthaburi, Ang Thong, Nakhon Nayok, Sing Buri, Saraburi, Ayutthaya, Samut Sakhon, Pathum Thani, Trat, Nonthaburi and Rayong regions, and also , Bangkok.
Ten regions, mostly in the South, had fine air quality, especially in descending order of PM2.5 rates Narathiwat, Yala, Samut Prakan, Songkhla, Pattani, Satun, Phangnga, Krabi, Phatthalung and Phuket.
Five southern counties had really good air quality, especially Chumphon, Nakhon Si Thammarat, Ranong, Surat Thani and Trang.
On Monday night, the Gistda image shows the areas in Thailand and the surrounding nations.