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  4. Philadelphia County

Philadelphia County

Pennsylvania

2025-12-11 21:00
AQI (India)
Satisfactory
Pollutants
O3
μg/m³
69.6
NO2
μg/m³
18.6
CO
μg/m³
250
PM10
μg/m³
9
PM2.5
μg/m³
3.2
SO2
μg/m³
1.1
Weather
  • ℃
  • ℉
0℃
46%
30 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • O3
  • NO2
  • CO
  • PM10
  • PM2.5
  • SO2
Places included
Philadelphia
AQI 70
Data Sources
http://www.airnow.gov/

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