SmogRank / World / Thailand / Bangkok / January 2024
Most polluted cities in Bangkok, Thailand, January 2024
14 cities in Bangkok, Thailand ranked by their average PM2.5 over the 31 days. Worst: Khlong Sam Wa at 50.9 µg/m³, #32 of 2,341 cities in the world. Cleanest: Ban Khlong Prawet at 39.3. 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.
- 1Lat Krabang 100%
- 2Khlong Sam Wa 96%
- 3Nong Khaem 90%
- 4Bang Na 88%
- 5Ban Samae Dam 84%
- 6Bueng Kum 84%
- 6Lak Si 84%
- 8Khan Na Yao 84%
- 9Saphan Sung 84%
- 10Bang Kapi 80%
- 11Sai Mai 76%
- 12Nong Chok 74%
- 13Ban Khlong Prawet 63%
- 14Bangkok 61%
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, January 2024 · All cities in Thailand, January 2024 · Bangkok now
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SmogRank, most polluted cities in Bangkok, Thailand, PM2.5, January 2024, smogrank.com/th/region/bangkok/history/2024-01 (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.