Chengdu Air Quality
China · 30.57, 104.07 · hour of 2026-10-06 21:00 UTC
105US AQI
Unhealthy (Sensitive)Category
91.3PM2.5 (µg/m³)
99.9PM10 (µg/m³)
0O3 (µg/m³)
87.9NO2 (µg/m³)
10.5SO2 (µg/m³)
1,486CO (µg/m³)
What this means
Chengdu currently ranks #7 of 50 tracked cities for PM2.5 (1 = most polluted). Its PM2.5 level of 91.3 µg/m³ is 6.1× the WHO 24-hour guideline of 15 µg/m³. A US AQI of 105 falls in the “Unhealthy (Sensitive)” band; see the health guide for what each band means.
Figures are hourly values from the Open-Meteo Air Quality API, modelled from Copernicus CAMS forecasts for the city-centre coordinates rather than read from a single ground station. Concentrations are in micrograms per cubic metre; the US AQI follows EPA breakpoints and reports the worst pollutant. Data is cached for 15 minutes.