Bangkok: Hotspots have decreased, but air pollution levels remain above standard in much of the country due to transboundary haze. The Pollution Control Department reported on the air quality situation, finding a more than 55% decrease in hotspots nationwide, but PM2.5 levels still exceed standards in many areas due to meteorological factors such as low dust dispersion rates and transboundary haze.
According to Thai News Agency, data from the Pollution Control Department at 7:00 AM shows PM2.5 levels exceeding the standard in 45 provinces, concentrated in the North, Northeast, and Central regions. These provinces include Nonthaburi, Bangkok, Samut Prakan, Phra Nakhon Si Ayutthaya, Ang Thong, Sing Buri, Chai Nat, Lop Buri, Saraburi, Suphan Buri, Ratchaburi, Samut Songkhram, Phetchaburi, Chiang Rai, Chiang Mai, Nan, Mae Hong Son, Phayao, Lamphun, Lampang, Phrae, Uttaradit, Sukhothai, Phitsanulok, Tak, Kamphaeng Phet, Phichit, Phetchabun, Nakhon Sawan, Uthai Thani, Bueng Kan, Nong Khai, Loei, Udon Thani, Nakhon Phanom, Nong Bua Lamphu, Sakon Nakhon, Mukdahan, Khon Kaen, Kalasin, Maha Sarakham, Roi Et, Amnat Charoen, Chaiyaphum, and Ubon Ratchathani.
In the northern region, air pollution levels were mostly high, measuring 53.8-197.0 micrograms per cubic meter. The provinces with the highest levels included Mae Hong Son, Chiang Mai, Chiang Rai, Nan, and Phayao. Meanwhile, the northeastern and central-western regions also exceeded the standard in many areas. The eastern region was at a moderate level, and the southern region was at a good level. Bangkok and its surrounding areas exceeded the standard in 12 locations.
Regarding the hotspot situation on April 6, 2026, a total of 2,269 points were found. The provinces with the highest number of hotspots were Kanchanaburi, Chaiyaphum, Mae Hong Son, Tak, and Lampang. The majority, over 1,470 points, or 65%, occurred in forested areas.
Intensive government measures have resulted in a significant reduction in hotspots, from 5,083 to 2,269, marking a 55% decrease. A Northern Frontline Operations Center for Addressing Wildfires and Haze has been established to integrate operations across 17 provinces, mobilizing personnel, technology, and cooperation from all sectors, with the goal of controlling the situation before the Songkran festival.
However, high levels of accumulated hotspots are still found in neighboring countries, with Myanmar having 5,010 points, Laos 4,261 points, Vietnam 807 points, and Cambodia 786 points. Coupled with unfavorable meteorological conditions for ventilation, the particulate matter situation has not yet improved.
The Department of Environmental Quality Promotion (DEQP) requests public cooperation in refraining from all types of burning, and urges citizens to take care of their health by wearing face masks when going outside, and to continuously monitor the situation via the website Air4Thai.pcd.go.th or the Air4Thai application.