Check dust levels today, 31 Jan 2026: Bangkok finds PM 2.5 exceeding standards at orange level, starting to impact health in 64 areas.
On 31 Jan 2026, the Bangkok Air Quality Information Center reported the PM 2.5 dust situation from Bangkok's air quality monitoring stations at 07:00 AM. The 24-hour average PM 2.5 levels measured ranged from 33.8 to 58.2 micrograms per cubic meter (µg/m³). The levels exceeded the standard, reaching the orange alert level, which begins to affect health (standard not exceeding 37.5 µg/m³), across 64 areas, including:
1. Bang Rak District, beside the police booth in front of Bang Rak Lovely Plaza: measured 58.2 µg/m³.
2. Lat Krabang District, in front of Nakharin Hospital: measured 55.9 µg/m³.
3. Prawet District, in front of Seacon Square Department Store: measured 55.5 µg/m³.
4. Taling Chan District, Phutthamonthon Sai 1 Road intersecting Borommaratchachonnani Road: measured 54.9 µg/m³.
5. Ratchathewi District, inside the Ratchathewi District Office: measured 54.6 µg/m³.
6. Thawi Watthana District, near Sanam Luang 2: measured 54.6 µg/m³.
7. Bang Kho Laem District, near the police booth at Si Yaek Thon Road intersection: measured 54.3 µg/m³.
8. Samphanthawong District, in front of the corner at the Royal Celebration Gate (Odeon Circle): measured 54.2 µg/m³.
9. Lak Si District, inside Lak Si District Office: measured 53.9 µg/m³.
10. Phra Nakhon District, inside Phra Nakhon District Office: measured 53.7 µg/m³.
11. Bang Phlat District, inside Bang Phlat District Office: measured 52.7 µg/m³.
12. Khlong Toei District, inside Khlong Toei District Office: measured 52.4 µg/m³.
13. Bang Sue District, inside Bang Sue District Office: measured 52.3 µg/m³.
14. Wang Thonglang District, in front of Bangchak gas station, Soi Lat Phrao 95: measured 51.5 µg/m³.
15. Bueng Kum District, inside Bueng Kum District Office: measured 51.5 µg/m³.
16. Nong Chok District, in front of Nong Chok District Office: measured 51.3 µg/m³.
17. Sai Mai District, at the bus stop in front of Sai Mai District Office: measured 50.9 µg/m³.
18. Khlong Sam Wa District, inside Khlong Sam Wa District Office: measured 50.1 µg/m³.
19. Bangkok Noi District, in front of Bangkok Noi Railway Police Station: measured 50.0 µg/m³.
20. Chatuchak District, in front of Kasetsart University: measured 49.8 µg/m³.
21. Pathum Wan District, in front of Samyan Mitrtown Department Store: measured 49.5 µg/m³.
22. Bang Khun Thian District, inside Bang Khun Thian District Office: measured 49.5 µg/m³.
23. Phasi Charoen District, in front of Siam University (near Soi Phetkasem 36) at the university entrance: measured 49.4 µg/m³.
24. Bang Na District, in front of Big C Bang Na Department Store: measured 49.1 µg/m³.
25. Nong Khaem District, at the three-way intersection beside the police booth on Majaroen Road, Phetkasem 81: measured 48.7 µg/m³.
26. Bang Khen District, inside Bang Khen District Office: measured 47.8 µg/m³.
27. Phra Khanong District, inside Phra Khanong District Office: measured 47.7 µg/m³.
28. Phaya Thai District, in front of the Army flats near Vichaiyut Hospital, opposite the Ministry of Finance: measured 47.6 µg/m³.
29. Don Mueang District, beside Don Mueang District Office: measured 47.6 µg/m³.
30. Yannawa District, near Krungsri Bank headquarters: measured 46.7 µg/m³.
31. Lat Phrao District, inside Lat Phrao District Office: measured 46.1 µg/m³.
32. Min Buri District, Chalerm Phra Kiat R.9 Park opposite Min Buri District Office: measured 46.1 µg/m³.
33. Dusit District, beside the park opposite Dusit District Office: measured 45.2 µg/m³.
34. Pom Prap Sattru Phai District, in front of the Office of the National Economic and Social Development Council: measured 44.6 µg/m³.
35. Rat Burana District, inside Rat Burana District Office: measured 44.6 µg/m³.
36. Chalerm Phra Kiat 6th Cycle Park, Bang Kho Laem District: measured 44.6 µg/m³.
37. Khan Na Yao District, at the entrance of Suan Siam Road intersecting Ram Inthra Road: measured 44.5 µg/m³.
38. Seri Thai Park, Bueng Kum District: measured 44.4 µg/m³.
39. Sathorn District, intersection in front of Sathorn District Office on Soi Saint Louis Road: measured 43.2 µg/m³.
40. Chalerm Phra Kiat 80th Birthday Anniversary Park, Bangkok Noi District: measured 43.0 µg/m³.
41. Ramindra Sports Park, Bang Khen District: measured 43.0 µg/m³.
42. Thawi Watthana District Park: measured 42.3 µg/m³.
43. Bangkok Yai District, at Tha Phra Intersection, Wat Tha Phra Subdistrict: measured 42.2 µg/m³.
44. 60th Birthday Anniversary Park of Her Majesty the Queen, Lat Krabang District: measured 41.6 µg/m³.
45. Khlong San District, in front of the library beneath Somdet Phra Chao Taksin Bridge: measured 41.5 µg/m³.
46. Saphan Sung District, inside Saphan Sung District Office: measured 41.4 µg/m³.
47. Benjasiri Park, Khlong Toei District: measured 41.2 µg/m³.
48. Suan Luang District, in front of Suan Luang District Office: measured 40.9 µg/m³.
49. Romanee Thung Si Kan Park, Don Mueang District: measured 40.8 µg/m³.
50. Huai Khwang District, inside Huai Khwang District Office (beside the nursery), Pracha Uthit Road: measured 40.7 µg/m³.
51. Thonburi District, beside the bus stop at Maihaisawan Intersection: measured 40.5 µg/m³.
52. Sanam Suea Paap Park, Ratchathewi District: measured 40.5 µg/m³.
53. Chatuchak Park, Chatuchak District: measured 40.4 µg/m³.
54. Queen Sirikit Park, Chatuchak District: measured 40.3 µg/m³.
55. Watthana District, opposite noble Reveal (beside MK Gold Restaurant): measured 40.1 µg/m³.
56. Rama 8 Park, Bang Phlat District: measured 40.1 µg/m³.
57. Wachirabenchatat Park, Chatuchak District: measured 40.0 µg/m³.
58. Nong Chok Park, Nong Chok District: measured 39.8 µg/m³.
59. Din Daeng District, beside Vibhavadi Rangsit Road: measured 39.7 µg/m³.
60. Chom Thong District, inside Chom Thong District Office: measured 39.4 µg/m³.
61. Bang Bon District, near Suksawadee Market: measured 39.3 µg/m³.
62. Bang Kapi District, beside the police booth opposite Bang Kapi District Office: measured 38.9 µg/m³.
63. Thung Khru District, in front of King Mongkut's University of Technology Thonburi: measured 38.4 µg/m³.
64. Thonburi Rom Park, Thung Khru District: measured 38.1 µg/m³.
The Air Quality Index from Bangkok's monitoring stations mostly indicates air quality at levels beginning to affect health.
The Meteorological Department forecasts cold weather with morning fog in Bangkok, with temperatures expected to rise slightly.
Health advice: At orange air quality level, health effects begin to appear.
For the general public: Use protective equipment such as PM2.5 masks whenever going outside, limit time spent on strenuous outdoor activities or exercise, and watch for symptoms like coughing, difficulty breathing, or eye irritation.
For at-risk groups: Use protective equipment such as PM2.5 masks whenever outside, avoid strenuous outdoor activities or exercise, follow medical advice, and seek medical attention if symptoms occur.
Related factors (forecast meteorological conditions affecting PM2.5) from 31 Jan to 3 Feb 2026: Ventilation is rated as 'weak/good.' Near-surface atmospheric layers alternate between open and closed, influenced by southerly winds from the Gulf of Thailand, which reduces dust accumulation. Today's forecast includes cold weather with morning fog and a slight temperature rise.
Satellite hotspot data from NASA show no abnormal heat spots detected over Bangkok, indicating no unusual ground heat emissions.
The Environmental Office has coordinated with all relevant agencies to intensify operations under the dust mitigation plan to reduce PM2.5 severity and its health impacts. It encourages public and sector participation by changing behaviors and reducing dust-generating activities through “5 ways to reduce dust you can do”: 1. Regular dusting at home, 2. Avoid burning garbage and incense, 3. Plant trees to absorb pollution and trap dust, 4. Use public transport, and 5. Turn off engines when parked and maintain vehicles to prevent excessive black smoke.
Warnings and public information encourage people to check air quality before leaving home via
If citizens spot pollution sources, they can report tips through Traffy Fondue.
