This morning's PM 2.5 measurement in Bangkok shows levels exceeding standards at an orange level, beginning to affect health in 68 areas.
On 1 Jan 2026, the Bangkok Air Quality Information Center reported the PM 2.5 situation from Bangkok's air quality monitoring stations at 07:00 hrs. The 24-hour average PM 2.5 levels ranged from 37.4 to 70.3 micrograms per cubic meter (µg/m³), exceeding the standard limit of 37.5 µg/m³, reaching an orange level that starts to affect health in 68 areas, as follows:
1. Chatuchak District, in front of Kasetsart University: 70.3 µg/m³.
2. Don Mueang District, beside Don Mueang District Office: 68.7 µg/m³.
3. Lat Krabang District, in front of Nakharin Hospital: 68.2 µg/m³.
4. Prawet District, in front of Seacon Square Department Store: 68.2 µg/m³.
5. Bangkok Noi District, in front of Bangkok Noi Railway Police Station: 67.6 µg/m³.
6. Bueng Kum District, inside Bueng Kum District Office: 67.2 µg/m³.
7. Thawi Watthana District, entrance to Sanam Luang 2: 66.4 µg/m³.
8. Bang Na District, in front of Big C Bang Na Department Store: 65.8 µg/m³.
9. Pathum Wan District, in front of Samyan Mitrtown Mall: 64.3 µg/m³.
10. Min Buri District, King Rama IX Park opposite Min Buri District Office: 64.3 µg/m³.
11. Khlong Toei District, inside Khlong Toei District Office: 64.1 µg/m³.
12. Yannawa District, near Krungsri Bank Headquarters: 64.0 µg/m³.
13. Sai Mai District, bus stop in front of Sai Mai District Office: 63.3 µg/m³.
14. Samphanthawong District, in front of the corner of Chalerm Phrakiat Gate (Odeon Circle): 62.6 µg/m³.
15. Khlong Sam Wa District, inside Khlong Sam Wa District Office: 62.6 µg/m³.
16. Bang Bon District, near Bang Bon Market: 62.1 µg/m³.
17. Khan Na Yao District, at the entrance of Suan Siam Road intersecting Ram Inthra Road: 62.0 µg/m³.
18. Bang Khun Thian District, inside Bang Khun Thian District Office: 61.7 µg/m³.
19. Sathorn District, intersection in front of Sathorn District Office on Saint Louis Road: 61.1 µg/m³.
20. 60th Birthday Anniversary Park of Her Majesty the Queen, Lat Krabang District: 60.6 µg/m³.
21. Seri Thai Park, Bueng Kum District: 59.9 µg/m³.
22. Bang Sue District, inside Bang Sue District Office: 59.7 µg/m³.
23. Nong Chok District, in front of Nong Chok District Office: 59.2 µg/m³.
24. Bang Rak District, beside the police post in front of Bang Rak Lovely Plaza: 58.5 µg/m³.
25. Nong Khaem District, three-way intersection beside the police post on Ma Charoen, Phetkasem 81: 58.5 µg/m³.
26. Lat Phrao District, inside Lat Phrao District Office: 58.3 µg/m³.
27. Saphan Sung District, inside Saphan Sung District Office: 58.1 µg/m³.
28. Thawi Wanaram Park, Thawi Watthana District: 57.8 µg/m³.
29. Bang Khen District, inside Bang Khen District Office: 57.7 µg/m³.
30. Bang Khae District, inside Bang Khae District Office: 57.5 µg/m³.
31. Chom Thong District, inside Chom Thong District Office: 57.1 µg/m³.
32. Lak Si District, inside Lak Si District Office: 56.8 µg/m³.
33. Suan Luang District, in front of Suan Luang District Office: 56.5 µg/m³.
34. Taling Chan District, Phutthamonthon Sai 1 Road intersecting Borommaratchachonnani Road: 56.3 µg/m³.
35. Thonburi Rom Park, Thung Khru District: 56.1 µg/m³.
36. Ram Inthra Sports Park, Bang Khen District: 55.9 µg/m³.
37. Wang Thonglang District, in front of Bangchak gas station, Soi Lat Phrao 95: 54.8 µg/m³.
38. Bang Kho Laem District, at the police post at intersection of Thanon Tok Road: 54.1 µg/m³.
39. Bang Phlat District, inside Bang Phlat District Office: 53.8 µg/m³.
40. Phra Nakhon District, inside Phra Nakhon District Office: 53.5 µg/m³.
41. Nong Chok Park, Nong Chok District: 53.0 µg/m³.
42. Thung Khru District, in front of King Mongkut's University of Technology Thonburi: 52.8 µg/m³.
43. Rat Burana District, inside Rat Burana District Office: 52.7 µg/m³.
44. Bang Khae Phirun Park, Bang Khae District: 52.4 µg/m³.
45. 80th Birthday Anniversary Park, Bangkok Noi District: 52.0 µg/m³.
46. Bang Kapi District, beside the police post opposite Bang Kapi District Office: 51.5 µg/m³.
47. Suan Luang Rama IX Park, Prawet District: 51.2 µg/m³.
48. 6th Cycle Birthday Anniversary Park, Bang Kho Laem District: 50.8 µg/m³.
49. Watthana District, opposite Noble Reveal (next to MK Gold Restaurant): 50.5 µg/m³.
50. Ratchathewi District, inside Ratchathewi District Office: 50.3 µg/m³.
51. Phra Khanong Park, Lat Krabang District: 49.9 µg/m³.
52. Bangkok Yai District, at Tha Phra intersection, Wat Tha Phra subdistrict: 49.8 µg/m³.
53. Suan Luang Rama 8 Park, Bang Phlat District: 49.7 µg/m³.
54. Phra Khanong District, inside Phra Khanong District Office: 49.5 µg/m³.
55. Khlong San District, in front of the library under Somdet Phra Chao Taksin Bridge: 49.2 µg/m³.
56. Phasi Charoen District, in front of Siam University (near Phetkasem 36 Alley) university entrance: 49.0 µg/m³.
57. Romanee Thung Si Kan Park, Don Mueang District: 48.6 µg/m³.
58. Dusit District, beside the green space opposite Dusit District Office: 48.2 µg/m³.
59. Chatuchak Park, Chatuchak District: 46.5 µg/m³.
60. Pom Prap Sattru Phai District, in front of the National Economic and Social Development Council: 46.1 µg/m³.
61. Phaya Thai District, in front of the Army Flats near Vichaiyut Hospital opposite the Ministry of Finance: 46.0 µg/m³.
62. Queen Sirikit Park, Chatuchak District: 45.3 µg/m³.
63. Wachirabenchathat Park, Chatuchak District: 44.6 µg/m³.
64. Thonburi District, at the bus stop near Mahaichai Intersection: 44.2 µg/m³.
65. Huai Khwang District, inside Huai Khwang District Office (beside the nursery), Pracha Uthit Road: 42.8 µg/m³.
66. Din Daeng District, along Vibhavadi Rangsit Road: 41.1 µg/m³.
67. Santiphap Park, Ratchathewi District: 39.3 µg/m³.
68. Benjasiri Park, Khlong Toei District: 38.8 µg/m³.
Air quality index from Bangkok's monitoring stations: Most are at levels where air quality begins to affect health.
Meteorological Department's weather forecast for Bangkok: Cool weather with some morning fog.
Health recommendations: Orange air quality level: beginning to affect health.
General public: Use protective equipment such as PM2.5 masks whenever leaving buildings. Limit time spent doing strenuous outdoor activities or exercise. Monitor for abnormal symptoms like coughing, difficulty breathing, or eye irritation.
At-risk groups: Use protective equipment such as PM2.5 masks whenever leaving buildings.
Avoid strenuous outdoor activities or exercise. Follow doctors' advice and seek medical attention promptly if symptoms occur.
Related factors (forecast of weather conditions affecting PM 2.5 levels based on meteorological conditions):
On 1 Jan 2026, ventilation conditions are considered "poor". Near-surface atmospheric layers are closed with weak winds, so PM concentrations are expected to increase. From 2-6 Jan 2026, ventilation conditions are considered "moderate/good". With stronger winds expected, PM concentrations are expected to decrease. Today’s forecast includes cool weather with some morning fog.
Satellite hotspot data from NASA shows no abnormal heat spots detected over Bangkok.
Alerts and public announcements advise residents to check air quality information before leaving home via
If residents spot pollution sources, they can report tips via Traffy Fondue.
Report compiled by: Bangkok Air Quality Information Center spokesperson team.
Sources: Bangkok Air Quality Information Center, Meteorological Department, and Geo-Informatics and Space Technology Development Agency.