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  4. Philadelphia County

Philadelphia County

Pennsylvania

2025-12-17 11:00
AQI (China)
Excellent
Pollutants|Pollens
NO2
μg/m³
60.4
PM2.5
μg/m³
15.5
PM10
μg/m³
22
CO
μg/m³
750
O3
μg/m³
11.8
SO2
μg/m³
2.3
Weather
  • ℃
  • ℉
-2℃
77%
13 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • NO2
  • PM2.5
  • PM10
  • CO
  • O3
  • SO2
Places included
Philadelphia
AQI 31
Data Sources
http://www.airnow.gov/

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