SmogRank / Countries / Thailand / February 2025
Most polluted cities in Thailand, February 2025
1 city in Thailand ranked by their average PM2.5 over the 28 days. Worst: Tha Bo at 35.7 µg/m³, #95 of 2,012 cities in the world. A city needs measurements on 70% of the days to be ranked.
- 1Tha BoNong Khai 35.7
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+