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  2. United States
  3. Colorado
  4. Larimer County
  5. Fort Collins

Fort Collins

Larimer County, Colorado

2026-09-13 12:00
AQI (India)
Good
Pollutants|Pollens
O3
μg/m³
49.3
CO
μg/m³
250
PM2.5
μg/m³
6.9
Weather
  • ℃
  • ℉
11℃
86%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • CO
  • PM2.5
Places included
Fort Collins - CSU - 708 S. Mason St.
AQI 13
Fort Collins - West - Laporte Ave. & Overland Tr.
AQI 50
Ft. Collins - CSU Facilities
AQI 12
Data Sources
http://www.airnow.gov/

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