SmogRank / Countries / Thailand / August 2023

Most polluted cities in Thailand, August 2023

3 cities in Thailand ranked by their average PM2.5 over the 31 days. Worst: Chiang Mai at 16.2 µg/m³, #89 of 1,670 cities in the world. Cleanest: Bangkok at 12.8. A city needs measurements on 70% of the days to be ranked.

  1. 1Chiang Mailow-cost sensorsChiang Mai
    16.2
  2. 2Tha BoNong Khai
    14.7
  3. 3Bangkoklow-cost sensorsBangkok
    12.8
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, August 2023 · Thailand now

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SmogRank, most polluted cities in Thailand, PM2.5, August 2023, smogrank.com/th/history/2023-08 (accessed 2 Oct 2026).

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