Millions of people in California have been urged to avoid grilling on Wednesday amid concerns over high air pollution levels.

“Air quality levels in outdoor air are predicted to be greater than an Air Quality Index value of 100 for the pollutant of ...

Central Arkansas has been placed under an Ozone Action Advisory, which is now classified as "Code Orange".Determined color ...

The Department of Natural Resources and Environmental Control warns of air that is unsafe for sensitive groups on July 5.

An air quality alert was issued Thursday by the National Weather Service for the entire Chicago area through Friday night.

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