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Which cities have the highest levels of air pollution? Which cities are the cleanest? Check out the lists here.
The cities on the cleanest cities lists for ozone and for short-term levels of particle pollution had no days with unhealthy levels of ozone or particle pollution.
The cities are ranked by the air quality in the most polluted county in the metropolitan area.
Get the report card for your state's air quality, including high ozone days, particle pollution and groups at risk.
Find out how your city measures up when it comes to air pollution.
We all have a reason to champion clean air. People just like you have shared some personal stories that highlight the need for healthy, safe air. Read the stories they have shared or share your own.
The American Lung Association advocates for clean air for all to breathe. Now is the time to call for stronger limits on air pollution. Will you join us by raising your voice?
Journalists can access press releases, experts available for interview, b-roll, the full "State of the Air" report and more.
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