|Highest 5:||U.S. Air Quality Summary | Canada Air Quality|
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|Raleigh-Durham-Chapel Hill, NC||
|Asheville Valleys (below 4000 feet), NC||
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3/12/14: AIRNow is experiencing technical difficulties with our maps. We are sorry for the inconvenience.
2014 NATIONAL AIR QUALITY CONFERENCES
2/5/14: It’s American Heart Month. Did you know you can use the AQI to help protect your heart? Check out EPA’s new PSA on air pollution and heart health.