SmogRank / Countries / Thailand / October 2023

Most polluted cities in Thailand, October 2023

3 cities in Thailand ranked by their average PM2.5 over the 31 days. Worst: Bangkok at 26.0 µg/m³, #27 of 1,686 cities in the world. Cleanest: Chiang Mai at 14.1. A city needs measurements on 70% of the days to be ranked.

  1. 1Bangkoklow-cost sensorsBangkok
    26.0
  2. 2Tha BoNong Khai
    22.7
  3. 3Chiang Mailow-cost sensorsChiang Mai
    14.1
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, October 2023 · Thailand now