Philadelphia vs Chicago

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

United States
Philadelphia
63
Moderate
United States
Chicago
59
Moderate
MetricPhiladelphiaChicago
AQI6359
PM2.534 μg/m³15.2 μg/m³
PM1034.5 μg/m³15.5 μg/m³
Ozone0 ppb24 ppb
NO269.1 ppb47.9 ppb

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

Philadelphia vs Chicago - Air Quality Comparison | atmos.today