Cleanest Cities

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Cleanest U.S. Cities for Ozone Air Pollution


Top 25 Cleanest U.S. Cities for Year-round Particle Pollution


Cleanest U.S. Cities for Short-term Particle Pollution

FACT: The American Lung Association leads the fight for healthy air every day. We fight for tighter clean air standards, reduced power plant emissions and cleaner diesel fuels and vehicles.

Help us Fight For Air! | See more facts »