Most polluted cities in China
1 measured city, last 30 days; 1 above the WHO 24-hour guideline. Worst: Changchun at 15.4 µg/m³, #223 in the world.
- 1Changchunlow-cost sensorsJilin 15.4
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+
Estimated: cities without a monitor
China cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Shanghai | ≈ 30 µg/m³ |
| Chongqing | ≈ 36 µg/m³ |
| Chengdu | ≈ 49 µg/m³ |
| Beijing | ≈ 67 µg/m³ |
| Guangzhou | ≈ 21 µg/m³ |
| Shenzhen | ≈ 12 µg/m³ |
| Tianjin | ≈ 49 µg/m³ |
| Wuhan | ≈ 42 µg/m³ |
| Xi’an | ≈ 83 µg/m³ |
| Hangzhou | ≈ 45 µg/m³ |
| Harbin | ≈ 20 µg/m³ |
| Dongguan | ≈ 17 µg/m³ |
| Hefei | ≈ 24 µg/m³ |
| Weifang | ≈ 33 µg/m³ |
| Nanjing | ≈ 31 µg/m³ |
| Shenyang | ≈ 27 µg/m³ |
| Foshan | ≈ 21 µg/m³ |
| Jinan | ≈ 53 µg/m³ |
| Dalian | ≈ 24 µg/m³ |
| Wuzhong | ≈ 19 µg/m³ |
| Qingdao | ≈ 18 µg/m³ |
| Yantai | ≈ 18 µg/m³ |
| Suzhou | ≈ 29 µg/m³ |
| Zhengzhou | ≈ 58 µg/m³ |
| Nanning | ≈ 10 µg/m³ |
| Kunming | ≈ 10 µg/m³ |
| Shijiazhuang | ≈ 46 µg/m³ |
| Pudong | ≈ 30 µg/m³ |
| Taiyuan | ≈ 21 µg/m³ |
| Zibo | ≈ 41 µg/m³ |
| Xiamen | ≈ 19 µg/m³ |
| Yangzhou | ≈ 21 µg/m³ |
| Huai'an | ≈ 21 µg/m³ |
| Guiyang | ≈ 11 µg/m³ |
| Bao'an | ≈ 12 µg/m³ |
| Wuxi | ≈ 31 µg/m³ |
| Lanzhou | ≈ 23 µg/m³ |
| Fuzhou | ≈ 21 µg/m³ |
| Ürümqi | ≈ 38 µg/m³ |
| Zaozhuang | ≈ 35 µg/m³ |
Updated 2026-10-01 20:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.