Check the air pollution levels on 5 Feb 2026 in Bangkok, where PM2.5 exceeds standards in the orange zone, beginning to impact health in 20 areas. Most air quality is at a moderate level.
On 5 Feb 2026, the Bangkok Air Quality Data Center reported the situation of particulate matter no larger than 2.5 microns (PM2.5) from Bangkok's air quality monitoring stations at 07:00. The 24-hour average PM2.5 levels were recorded.
Measurements ranged from 25.6 to 48.2 micrograms per cubic meter (µg/m³). PM2.5 exceeded the standard, reaching the orange level indicating beginning health effects (standard limit is 37.5 µg/m³) in 20 areas, which are:
1. Lat Krabang district, in front of Nakharin Hospital: measured at 48.2 µg/m³.
2. Bang Rak district, beside the police booth in front of Bang Rak Lovely Plaza: measured at 47.1 µg/m³.
3. Prawet district, in front of Seacon Square shopping mall: measured at 44.0 µg/m³.
4. Pathum Wan district, in front of Samyan Mitrtown shopping mall: measured at 43.5 µg/m³.
5. Nong Khaem district, at the intersection beside the police booth on Ma Charoen Road, Phetkasem 81: measured at 43.3 µg/m³.
6. Chatuchak district, in front of Kasetsart University: measured at 42.9 µg/m³.
7. Khan Na Yao district, at the entrance where Suan Siam Road intersects Ram Inthra Road: measured at 42.2 µg/m³.
8. Wang Thonglang district, in front of Bangchak gas station, Soi Lat Phrao 95: measured at 41.6 µg/m³.
9. Samphanthawong district, at the corner of the Chalerm Phra Kiat Gate (Odeon Circle): measured at 41.1 µg/m³.
10. Rat Burana district, inside the Rat Burana district office: measured at 40.3 µg/m³.
11. Phra Khanong district, inside the Phra Khanong district office: measured at 40.2 µg/m³.
12. Bang Kho Laem district, at the police booth at the intersection of Thonburi Road: measured at 39.8 µg/m³.
13. Khlong Toei district, inside the Khlong Toei district office: measured at 39.7 µg/m³.
14. Khlong Sam Wa district, inside the Khlong Sam Wa district office: measured at 39.7 µg/m³.
15. Bang Khun Thian district, inside the Bang Khun Thian district office: measured at 38.8 µg/m³.
16. Bang Na district, in front of Big C Bang Na shopping mall: measured at 38.8 µg/m³.
17. Taling Chan district, at the intersection of Phutthamonthon Sai 1 Road and Borommaratchachonnani Road: measured at 38.3 µg/m³.
18. Min Buri district, at Suan Chalerm Phra Kiat R.9 park opposite Min Buri district office: measured at 38.2 µg/m³.
19. Don Mueang district, beside the Don Mueang district office: measured at 38.1 µg/m³.
20. Bang Sue district, inside the Bang Sue district office: measured at 37.6 µg/m³.
The air quality index from Bangkok's monitoring stations mostly remains at a moderate air quality level.
The Meteorological Department forecasts that Bangkok will have light morning fog and temperatures will rise by 1-2 degrees Celsius.
Health advisory for orange-level air quality: health effects begin to appear.
General public: use protective equipment such as PM2.5 masks every time you go outside. Limit the duration of outdoor activities or strenuous exercise and watch for symptoms like coughing, difficulty breathing, or eye irritation.
At-risk groups: use protective equipment such as PM2.5 masks whenever outdoors. Avoid strenuous outdoor activities or exercise. Follow doctors’ advice and seek medical attention promptly if symptoms occur.
Related factors (forecast of weather conditions affecting PM2.5 levels based on meteorological conditions).
From 5 Feb 2026, ventilation is classified as "weak" with a stable lower atmosphere layer, causing dust accumulation. From 6-13 Feb, ventilation is expected to be "weak to good" with a more open lower atmosphere, stronger winds, and chances of rain between 8-10 Feb. Dust accumulation is expected to decrease. Today, light morning fog and a temperature increase of 1-2 degrees Celsius are forecast.
According to satellite hotspot data from NASA, no abnormal heat spots were detected over Bangkok.
The Environmental Office has coordinated with all relevant agencies to intensify actions under the dust pollution mitigation plan to reduce the severity of the PM2.5 situation and its potential health impacts. They also encourage public participation and cooperation from all sectors.
They urge everyone to change behavior and reduce activities that generate dust to lessen health impacts. The "5 ways to reduce dust—you can do it" are: 1. Regularly clean your home by dusting; 2. Stop burning trash and incense; 3. Plant trees to absorb pollutants and capture dust; 4. Use public transportation; 5. Turn off vehicle engines when parked and maintain engines to prevent excessive smoke emissions.
Alerts and public information encourage people to check air quality before leaving home via:
Information courtesy of the Environmental Office Bangkok's Facebook page.