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Four cities rank on all three cleanest cities lists for ozone, year-round particle pollution and short-term particle pollution. They had zero high ozone or high particle pollution days and are among the 25 cities with the lowest year-round particle levels. All four repeat their ranking on this list. Listed alphabetically, these cities are:

  • Bangor, ME
  • Burlington-South Burlington, VT
  • Urban Honolulu, HI
  • Wilmington, NC

Nine other cities rank among the cleanest cities for both year-round and short-term levels of particle pollution. That means they had no days in the unhealthy level for short-term particle pollution and are on the list of the cleanest cities for year-round particle pollution. Listed alphabetically below, they are:

  • Appleton-Oshkosh-Neenah, WI
  • Elmira-Corning, NY
  • Gainesville-Lake City, FL
  • Grand Island, NE
  • Palm Bay-Melbourne-Titusville, FL
  • Sioux Falls, SD
  • Springfield, MA
  • St. George, UT
  • Syracuse-Auburn, NY

Seventeen other cities rank among the cleanest for ozone and short-term particle pollution. That means they had no days in the unhealthy level for ozone or for short-term particle pollution. Listed alphabetically below, they are:

  • Bowling Green-Glasgow, KY
  • Clarksville, TN-KY
  • Corpus Christi-Kingsville-Alice, TX
  • Fayetteville-Sanford-Lumberton, NC
  • Fayetteville-Springdale-Rogers, AR
  • Florence, SC
  • Fort Smith, AR-OK
  • Gadsden, AL
  • Houma-Thibodaux, LA
  • La Crosse-Onalaska, WI-MN
  • Lincoln-Beatrice, NE
  • Monroe-Ruston, LA
  • Morgantown-Fairmont, WV
  • Roanoke, VA
  • Springfield, MO
  • Tallahassee, FL
  • Topeka, KS

Five cities rank on both lists for ozone and year-round particle pollution levels. These cities had no days in the unhealthy level for ozone pollution and are on the list of the cleanest cities for year-round particle pollution. Listed alphabetically below, they are:

  • Anchorage, AK
  • Bismarck, ND
  • Casper, WY
  • Duluth, MN-WI
  • Salinas, CA

Did You Know?

  1. Nearly 5 out of 10 people live where the air they breathe earned an F in State of the Air 2020.
  2. 150 million people live in counties that received an F for either ozone or particle pollution in State of the Air 2020.
  3. More than 20.8 million people live in counties that got an F for all three air pollution measures in State of the Air 2020.
  4. Breathing ozone irritates the lungs, resulting in something like a bad sunburn within the lungs.
  5. Breathing in particle pollution can increase the risk of lung cancer, according to the World Health Organization.
  6. Particle pollution can also cause early death and heart attacks, strokes and emergency room visits for people with asthma and cardiovascular disease.
  7. Particles are smaller than 1/30th the diameter of a human hair. When you inhale them, they are small enough to get past the body's natural defenses.
  8. Ozone and particle pollution are both linked to increased risk of lower birth weight in newborns.
  9. Do you live near, or work on or near a busy highway? Pollution from the traffic may put you at greater risk of harm.
  10. People who work or exercise outside face increased risk from the effects of air pollution.
  11. Millions of people are especially vulnerable to the effects of air pollution, including infants, older adults and people with lung diseases like asthma.
  12. People of color and those earning lower incomes are often disproportionately affected by air pollution that put them at higher risk for illnesses.
  13. Air pollution is a serious health threat. It can trigger asthma attacks, harm lung development in children, and can even be deadly.
  14. You can protect your family by checking the air quality forecasts in your community and avoiding exercising or working outdoors when the unhealthy air is expected.
  15. Climate change enhances conditions for ozone to form and makes it harder to keep ozone from forming.
  16. Climate change increases the risk of wildfires that spread particle pollution and ozone in the smoke.
  17. This Administration is trying to roll back or create loopholes in core healthy air protections under the Clean Air Act. The Lung Association opposes these actions that will add pollution to the air we breathe.
  18. Cutting air pollution through the Clean Air Act will prevent at least 230,000 deaths and save $2 trillion annually by 2020.
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