SmogRank / Countries / Thailand / May 2024
Most polluted cities in Thailand, May 2024
4 cities in Thailand ranked by their average PM2.5 over the 31 days. Worst: Chiang Mai at 42.0 µg/m³, #14 of 2,082 cities in the world. Cleanest: Ban Khlong Prawet at 18.5. A city needs measurements on 70% of the days to be ranked.
- 1Chiang Mailow-cost sensorsChiang Mai 42.0
- 2Bangkoklow-cost sensorsBangkok 25.5
- 3Tha BoNong Khai 22.3
- 4Ban Khlong Prawetlow-cost sensorsBangkok 18.5
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+