This Morning in Bangkok: PM 2.5 Levels Exceed Standards in 4 Areas, Beginning to Affect Health

Warning to wear masks: This morning, Bangkok's air quality is moderate, with PM 2.5 levels exceeding standards in four areas, beginning to impact health.

FacebookBangkok Metropolitan AdministrationThe Bangkok Metropolitan Administration posted: "The Bangkok Air Quality Information Center reports the PM 2.5 situation in Bangkok on 23 Dec 2025 at 07:00 GMT+7. The city's average PM2.5 level is 30.3 µg/m³ (standard 37.5 µg/m³), indicating moderate air quality. Dust particles are increasing, with four areas showing levels above the standard in the orange zone, beginning to affect health. These areas are:

1. Pathumwan District: 40.6 µg/m³

2. Sathorn District: 39.8 µg/m³

3. Bang Kho Laem District: 38.9 µg/m³

4. Nong Khaem District: 38.9 µg/m³

5. Bang Rak District: 36.9 µg/m³

6. Thonburi District: 36.9 µg/m³

7. Phasi Charoen District: 36.6 µg/m³

8. Bang Khun Thian District: 36.3 µg/m³

9. Min Buri District: 35.2 µg/m³

10. Chatuchak District: 34.7 µg/m³

11. Khlong Sam Wa District: 34.4 µg/m³

12. Prawet District: 34.1 µg/m³

Health advice for orange-level air quality: beginning to affect health.

• General public: Use protective equipment such as PM2.5 masks whenever going outdoors. Limit the time spent on strenuous outdoor activities or exercise. Monitor for symptoms like coughing, difficulty breathing, or eye irritation.

• At-risk groups: Use protective equipment such as PM2.5 masks every time you go outside. Avoid strenuous outdoor activities or exercise. Follow medical advice and seek prompt medical attention if symptoms appear.

Forecast for 23-24 Dec 2025: Ventilation is poor with light winds, so PM2.5 concentration is expected to be moderate to high. For 25-26 Dec, ventilation improves with stronger winds, so dust levels are expected to be moderate to good."

Thanks to the Bangkok Metropolitan Administration's Facebook page.