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  4. Philadelphia County

Philadelphia County

Pennsylvania

2026-09-17 09:00
AQHI (Canada)
Low
Pollutants|Pollens
O3
μg/m³
36.4
PM10
μg/m³
14
PM2.5
μg/m³
6.2
NO2
μg/m³
19.8
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
21℃
88%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQHI (Canada)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • SO2
Places included
Philadelphia
AQI 2
Data Sources
http://www.airnow.gov/

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