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  5. 2, Frederick

2, Frederick

Frederick County

2025-12-29 16:00
AQI (US)
Good
Pollutants
PM2.5
μg/m³
7.4
PM10
μg/m³
11.9
O3
μg/m³
19.9
NO2
μg/m³
3.4
Weather
  • ℃
  • ℉
10℃
97%
13 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • PM2.5
  • PM10
  • O3
  • NO2
Places included
Frederick
AQI 42

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Frederick
AQI 42
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AQI 12
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Walkersville
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Middletown
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Urbana
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New Market
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Woodsboro
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