Breathe Easier: Top Cleanest Cities

•

About 50 million Americans live in places where air pollution threatens their health, according to the latest numbers from the American Lung Association. Check out the top 5 US cities with the least polluted air.

Copyright HELTH - Health.com
Local Northern Virginia Prince George's County Subscribe to The 4Front Weather Changing Climate See It, Share It Videos Investigations Consumer Submit a tip The Scene Subscribe to The Weekend Scene Entertainment News 4 Your Home U.S. & World Money Report Politics Health Changing Minds
About NBC4 Washington Our news standards Our apps Submit photos and video Submit a consumer complaint Take our survey Promotions Newsletters Cozi TV
Contact Us