At 3:45 p.m. on Sunday, the National Weather Service reported an air quality alert in effect until Tuesday at midnight for ...

On Tuesday at 3:45 p.m. the National Weather Service reported an updated air quality alert in effect until Thursday at ...

The National Weather Service reported an air quality alert at 2:39 p.m. EDT on Sunday in effect until Monday at midnight EDT ...

The alert will remain go into effect starting at midnight on Saturday, June 21, through Monday, June 23, for counties in Ohio ...

On Sunday at 3:30 p.m. the National Weather Service reported an air quality alert in effect until Tuesday at midnight for ...

At 3:45 p.m. on Tuesday, the National Weather Service reported an updated air quality alert in effect until Thursday at ...

If the air feels a little heavier today, you're not imagining it. A health advisory for elevated air pollution levels remains ...

The National Weather Service reported an air quality alert at 11:45 a.m. EDT on Sunday in effect until Tuesday at midnight ...

People in Colorado have been urged to avoid driving gas and diesel vehicles on Thursday amid an air pollution warning.

Millions of Americans in the Northeast are being advised to avoid strenuous physical activity outdoors due to unhealthy air ...

At 3:20 p.m. on Monday, the National Weather Service reported an air quality alert in effect until Tuesday at 11 p.m. for Bristol, Plymouth, Barnstable, Dukes and Nantucket counties.