Phoenix vs Chicago

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

United States
Phoenix
50
Good
United States
Chicago
29
Good
MetricPhoenixChicago
AQI5029
PM2.513.4 μg/m³3.8 μg/m³
PM1055.9 μg/m³3.9 μg/m³
Ozone49 ppb63 ppb
NO24.8 ppb12.8 ppb

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

Phoenix vs Chicago - Air Quality Comparison | atmos.today