Most Colorado Counties given an ‘F’ for their air quality grade

Apr 24, 2024, 6:36 PM | Updated: Apr 25, 2024, 9:58 am

The annual State of the Air report from the American Lung Association has been released. Six of the ten cities on the Worst Air Quality list in America are in California. Landing at the top of the list is Bakersfield, Calif. Cities in Oregon, Arizona and Alaska finished out the top ten for worst air quality.

Closer to home, Colorado Springs made the top ten list for “Cleanest Cities.”

What grade did Colorado counties get? Is your county on the list?

  • Archuleta: A
  • Delta: A
  • Adams: F – 15.5
  • Arapahoe: F – 20.8
  • Boulder: F – 16.7
  • Clear Creek: F – 6.0
  • Denver: F – 15.3
  • Douglas: F – 26.0
  • El Paso: F – 12.5
  • Garfield: C -1.0
  • Jefferson: F – 40.3
  • La Plata: C -1.3
  • Larimer: F – 17.2
  • Mesa: C – 1.0
  • Montezuma: C -1.3
  • Rio Blanco: C – 2.0
  • Weld: F – 16.2

Bad air quality can lead to numerous health problems. Read more about the study and health complications here.



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Most Colorado Counties given an ‘F’ for their air quality grade