SmogRank / World / Thailand / Bangkok / February 2024
Most polluted cities in Bangkok, Thailand, February 2024
11 cities in Bangkok, Thailand ranked by their average PM2.5 over the 29 days. Worst: Ban Samae Dam at 37.0 µg/m³, #71 of 2,437 cities in the world. Cleanest: Ban Khlong Prawet at 27.9. A city needs measurements on 70% of the days to be ranked.
OpenAQ's archive, where our readings come from, has almost none for one of these days. Cities in the United States and Europe have it from the EPA's and the European Environment Agency's own records of the same monitors; elsewhere a city's average is over its other days. Why.
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 42%
- 2Ban Samae Dam 38%
- 3Nong Khaem 36%
- 4Khan Na Yao 31%
- 5Bang Kapi 27%
- 5Lat Krabang 27%
- 7Bangkok 24%
- 8Sai Mai 23%
- 9Saphan Sung 21%
- 10Ban Khlong Prawet 18%
- 11Bueng Kum 13%
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
All cities in the world, February 2024 · All cities in Thailand, February 2024 · Bangkok now
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SmogRank, most polluted cities in Bangkok, Thailand, PM2.5, February 2024, smogrank.com/th/region/bangkok/history/2024-02 (accessed 6 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.