Phoenix vs Chicago

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

United States
Phoenix
51
Moderate
United States
Chicago
40
Good
MetricPhoenixChicago
AQI5140
PM2.514.2 μg/m³10.8 μg/m³
PM1034.6 μg/m³11.7 μg/m³
Ozone44 ppb66 ppb
NO232.6 ppb13.1 ppb

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