SmogRank / World / Thailand / Bangkok / February 2025
Most polluted cities in Bangkok, Thailand, February 2025
14 cities in Bangkok, Thailand ranked by their average PM2.5 over the 28 days. Worst: Bang Na at 45.9 µg/m³, #57 of 2,574 cities in the world. Cleanest: Ban Khlong Prawet at 34.8. A city needs measurements on 70% of the days to be ranked.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1Bang Na 75%
- 2Khlong Sam Wa 68%
- 3Khan Na Yao 68%
- 4Nong Chok 64%
- 5Lat Krabang 64%
- 6Lak Si 64%
- 7Saphan Sung 61%
- 8Bueng Kum 57%
- 9Nong Khaem 57%
- 10Bang Kapi 54%
- 11Bangkok 46%
- 12Ban Samae Dam 46%
- 13Sai Mai 46%
- 14Ban Khlong Prawet 39%
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
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SmogRank, most polluted cities in Bangkok, Thailand, PM2.5, February 2025, smogrank.com/th/region/bangkok/history/2025-02 (accessed 7 Oct 2026).
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