Chicago vs Beijing

Live air quality comparison. Chicago has cleaner air right now.

United States
Chicago
29
Good
China
Beijing
152
Unhealthy
MetricChicagoBeijing
AQI29152
PM2.53.8 μg/m³49.7 μg/m³
PM103.9 μg/m³56.6 μg/m³
Ozone63 ppb90 ppb
NO212.8 ppb57.5 ppb

Lower values mean cleaner air. Updated hourly. Sources: OpenAQ, Open-Meteo.