Bangkok’s overall air quality remains moderate, Pathum Wan tops PM2.5 readings
Bangkok’s average PM2.5 level stood at 29.7 µg/m³ at 7am on Jan 21, below the 37.5 µg/m³ standard, though Pathum Wan recorded the highest level at 48.2 µg/m³, entering the range that begins to affect health.
The Bangkok Metropolitan Administration’s Air Quality Information Centre reported PM2.5 conditions across Bangkok on January 21, 2026 at 07:00.
The citywide average was 29.7 micrograms per cubic metre (µg/m³) (standard: 37.5 µg/m³). Pathum Wan recorded the highest PM2.5 level at 48.2 µg/m³, which exceeds the standard and is at a level that begins to affect health.
Top 12 districts with the highest PM2.5 in Bangkok
- Pathum Wan: 48.2 µg/m³
- Lat Krabang: 39.8 µg/m³
- Chatuchak: 37.1 µg/m³
- Khlong Sam Wa: 36.9 µg/m³
- Bang Rak: 36.3 µg/m³
- Bang Kho Laem: 36.2 µg/m³
- Nong Chok: 35.9 µg/m³
- Lak Si: 35.6 µg/m³
- Phra Nakhon: 34.6 µg/m³
- Prawet: 34.4 µg/m³
- Ratchathewi: 34.1 µg/m³
- Wang Thonglang: 34.0 µg/m³
Health advice for orange-level air quality (begins to affect health)
General public: Wear protective equipment such as a PM2.5 mask whenever outdoors. Limit time spent on strenuous outdoor activities or exercise. Watch for symptoms such as coughing, breathing difficulty, or eye irritation.
At-risk groups: Wear a PM2.5 mask whenever outdoors. Avoid strenuous outdoor activities or exercise. Follow medical advice, and seek medical attention promptly if symptoms occur.
