On 16 Jan 2026, PM2.5 levels in Bangkok exceeded standards in many areas, peaking in Bang Rak district, followed closely by Lat Krabang. The pollution level reached the red alert stage.
On 16 Jan 2026, the Bangkok Air Quality Information Center reported PM2.5 particle levels in the city at 07:00, averaging 57.3 micrograms per cubic meter (μg/m³), surpassing the standard of 37.5 μg/m³. Measurements across 70 locations ranged from 38.8 to 86.6 μg/m³, indicating an orange alert level with health effects beginning. Bang Rak and Lat Krabang districts exceeded standards at the red alert level, posing health risks and prompting warnings to avoid outdoor activities. Other Bangkok districts remained at the orange alert level with elevated PM2.5.
Top 12 Bangkok districts with highest PM2.5 levels
1. Bang Rak district: 75.8 μg/m³
2. Lat Krabang district: 75.5 μg/m³
3. Pathum Wan district: 73.7 μg/m³
4. Prawet district: 71.4 μg/m³
5. Chatuchak district: 70.9 μg/m³
6. Sathorn district: 70.4 μg/m³
7. Khlong Sam Wa district: 68.4 μg/m³
8. Nong Chok district: 64.8 μg/m³
9. Khlong Toei district: 64.1 μg/m³
10. Bueng Kum district: 63.5 μg/m³
11. Ratchathewi district: 62.8 μg/m³
12. Min Buri district: 62.2 μg/m³
Although PM2.5 levels show signs of decreasing, air quality remains at a level that begins to affect health. Citizens are advised to use protective equipment such as PM2.5 masks whenever leaving buildings, limit the duration and intensity of outdoor activities or exercise, and monitor for symptoms like coughing, difficulty breathing, or eye irritation. Those experiencing symptoms should seek medical attention promptly.