PM 2.5 Levels in Bangkok Exceed Standards in Four Areas on 5 April 2026

This morning, PM 2.5 levels in Bangkok exceeded standards in four areas, with air quality rated orange, indicating the start of health effects.

FacebookBangkok Metropolitan Air Quality Data CenterThe report on PM 2.5 particulate matter (particles not exceeding 2.5 microns) in Bangkok on 5 April 2026 at 07:00 shows the citywide average at 30.9 micrograms per cubic meter (µg/m³), with the standard limit at no more than 37.5 µg/m³. The top 12 highest PM2.5 levels by district are as follows:

1. Prawet District: 44 µg/m³

2. Bang Kho Laem District: 39.3 µg/m³

3. Nong Chok District: 38 µg/m³

4. Lat Krabang District: 37.6 µg/m³

5. Laksi District: 36.6 µg/m³

6. Bang Khun Thian District: 35.3 µg/m³

7. Ratchathewi District: 35 µg/m³

8. Bang Rak District: 34.9 µg/m³

9. Wang Thonglang District: 34.5 µg/m³

10. Sathorn District: 34.4 µg/m³

11. Bang Phlat District: 34 µg/m³

12. Phra Nakhon District: 33.3 µg/m³

• Northern Bangkok: 28.2 - 36.6 µg/m³ Overall: Moderate level
• Eastern Bangkok: 26.4 - 44 µg/m³ Overall: Moderate level
• Central Bangkok: 23.4 - 35 µg/m³ Overall: Moderate level
• Southern Bangkok: 23.9 - 39.3 µg/m³ Overall: Moderate level
• Northern Thonburi: 23.7 - 34 µg/m³ Overall: Moderate level
• Southern Thonburi: 26 - 35.3 µg/m³ Overall: Moderate level

Although particulate matter levels tend to increase, overall air quality remains moderate. Health advice: air quality at orange level (beginning to affect health).

• General public: Use protective equipment such as PM2.5 masks whenever going outdoors. Limit 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 see a doctor immediately if abnormal symptoms occur.

Thanks to the Facebook page of the Bangkok Metropolitan Air Quality Data Center.