PUBLISHED: 26 Jan 2025 at 11: 31
The worst heat waste was discovered in the Central Plain on Sunday night, with the worst levels of dangerous fine sand being found in 58 out of 77 regions in Thailand.
The Geo-Informatics and Space Technology Development Agency ( Gistda ) reported at 10am that particulate matter 2.5 micrometres and less in diameter ( PM2.5 ) was at red ( hazardous-to-health ) levels in 20 provinces.
The highest amount of PM2.5, 109.7 microgrammes per square metre of air over the past 24 hours, was recorded in , Sing Buri state.
It was followed by 108.5µg/m ³ in Chai Nat, 94.4µg/m ³ in Lop Buri, 91.2 in Nakhon Sawan, 88.3 in Saraburi, 86 in Uthai Thani and Kamphaeng Phet, 85.9 in Prachin Buri, 83.3 in Khon Kaen, Chaiyaphum and Nong Bua Lam Phu, 82.7 in Chachoengsao, 82.5 in Ang Thong, 81.7 in Phetchabun, 80.9 in Nakhon Ratchasima, 80.5 in Sa Kaeo, 79.5 in Phichit, 77.6 in Sukhothai, 77.4 in Loei and 75.4 in Chon Buri.
The healthy level is at 37.5µg/m³.
Safe air was reported in 19 provinces, including 10 at with yellow levels of PM2.5 ranging from 26.3 to 34.2µg/m ³ ( moderate air quality ). In ascending attempt, they were Narathiwat, Mae Hong Son, Chiang Mai, Chiang Rai, Sonkhla, Phatthalung, Yala, Pattani, Trat and Lamphun.
Nine others, in the South, had good ( green-level ) air quality with PM2.5 levels ranging from 15.2 to 24.9µg/m³. In ascending attempt, they were Krabi, Phuket, Phangnga, Nakhon Si Thammarat, Satun, Surat Thani, Ranong, Chumphon and Trang.
The 38 remaining provinces recorded orange levels ( starting to affect health ), with PM2.5 ranging from 39.8 to 73.7µg/m³. They included Greater Bangkok.