Phoenix vs Chicago

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

United States
Phoenix
52
Moderate
United States
Chicago
61
Moderate
MetricPhoenixChicago
AQI5261
PM2.54.9 μg/m³14.2 μg/m³
PM107.5 μg/m³14.5 μg/m³
Ozone78 ppb86 ppb
NO22.9 ppb25.8 ppb

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