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Cleanest U.S. Cities, 2014

Each year the American Lung Association issues their "State of the Air" report. They track ozone pollution, short-term particle, and year-round particle pollution listed here. Here are the top 25 U.S. cities with the cleanest air.

Top 25 Cleanest U.S. Cities for Year-round Particle Pollution
#1: Prescott, AZ
#2: Cheyenne, WY
#2: Farmington, NM
#4: Casper, WY
#5: St. George, UT
#6: Flagstaff, AZ
#7: Redding-Red Bluff, CA
#8: Duluth, MN-WI
#9: Kahului-Wailuku-Lahaina, HI
#10: Rapid City-Spearfish, SD
#11: Salinas, CA
#12: Reno-Carson City-Fernley, NV
#13: Palm Bay-Melbourne-Titusville, FL
#14: Albuquerque-Santa-Fe-Las Vegas, NM
#15: Pocatello, ID
#15: Anchorage, AK
#17: Sierra Vista-Douglas, AZ
#18: Bismarck, ND
#19: Cape Coral-Fort Myers-Naples, FL
#20: Elmira-Corning, NY
#20: North Port-Sarasota, FL
#22: Burlington-South Burlington, VT
#23: Homosassa Springs, FL
#23: Grand Island, NE
#23: Portland-Vancouver-Salem, OR-WA
#23: Bangor, ME
Source: State of the Air: 2014, American Lung Association.

U.S. Cities