SmogRank / Countries / Cambodia / 2026
Most polluted cities in Cambodia, 2026
1 city in Cambodia ranked by their average PM2.5 so far (273 of 365 days); 1 above the WHO annual guideline (5.0 µg/m³). Worst: Chrang Chamreh Muoy at 25.4 µg/m³, #180 of 2,181 cities in the world. A city needs measurements on 70% of the days to be ranked.
- 1Chrang Chamreh Muoylow-cost sensorsPhnom Penh 25.45.1×
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, 2026 · Cambodia now
Use this board
SmogRank, most polluted cities in Cambodia, PM2.5, 2026 (so far), smogrank.com/kh/history/2026 (accessed 2 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.