Chicago vs Beijing

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

United States
Chicago
61
Moderate
China
Beijing
153
Unhealthy
MetricChicagoBeijing
AQI61153
PM2.54.1 μg/m³42.8 μg/m³
PM104.2 μg/m³42.8 μg/m³
Ozone107 ppb1 ppb
NO26.1 ppb94.6 ppb

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