SmogRank / World / Thailand / Bangkok / May 2024

Most polluted cities in Bangkok, Thailand, May 2024

12 cities in Bangkok, Thailand ranked by their average PM2.5 over the 31 days. Worst: Bang Na at 27.4 µg/m³, #78 of 2,641 cities in the world. Cleanest: Sai Mai at 15.5. A city needs measurements on 70% of the days to be ranked.

About 861K people in these 5 cities breathed unhealthy air on an average day of May 2024.

Ranked by people: each city's population times its share of unhealthy days, those with a daily mean over 35.4 µg/m³ (US AQI 101+). That is how many people living there breathed unhealthy air on an average day. Only cities measured at 2 or more places at least 3 km apart are ranked: one monitor shouldn't speak for a whole city. Population is the city itself, not its wider metro area.

← Bangkok 823K 800K0
Every city in Bangkok, Thailand ranked for May 2024 with monitors in two or more places, one column each, ranked by people breathing unhealthy air: height is people on an average day, colour its average. Point at it to read a city; tap to open it.
  1. 1Bangkok
    823K
  2. 2Nong Khaem
    31.1K
  3. 3Lak Si
    7.08K
  4. 4Ban Khlong Prawet
    0
  5. 5Sai Mai
    0
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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, May 2024 · All cities in Thailand, May 2024 · Bangkok now

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SmogRank, most polluted cities in Bangkok, Thailand, PM2.5, May 2024, smogrank.com/th/region/bangkok/history/2024-05 (accessed 7 Oct 2026).

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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.