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  5. Greencastle

Greencastle

Franklin County, Pennsylvania

2026-05-11 00:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
76.2
PM10
μg/m³
17
PM2.5
μg/m³
8.1
Weather
  • ℃
  • ℉
15℃
85%
8 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5

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