SmogRank / Countries / China / August 2026
Most polluted cities in China, August 2026
1 city in China ranked by their average PM2.5 over the 31 days. Worst: Changchun at 20.5 µg/m³, #148 of 2,312 cities in the world. A city needs measurements on 70% of the days to be ranked.
- 1Changchunlow-cost sensorsJilin 20.5
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+