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

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

The Southwest Ohio Air Quality Agency reports that "levels of ozone within the region may approach or exceed unhealthy ...

There are actually two AQIs for air quality, one for particulate matter and one for ozone, but when you see just one AQI, you ...

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

On Friday, July 4, and Saturday, July 5, the AQI will reach levels up to 110, meaning ozone or other major air pollutants are expected to reach levels considered unhealthy for sensitive groups ...

The Michigan Department of Environment, Great Lakes and Energy issued an air quality advisory Friday night effective through ...

This rates the severity of air pollution from 0 to 500, with 500 being the worst air quality. An AQI below 50 is good, between 51 and 100 is considered moderate, and above 100 is considered unhealthy.

MIchigan's air quality will be unhealthy for some groups Saturday. Check the air quality index map to see if it's good or bad ...

Officials with the Arkansas Department of Energy and Environment and the Division of Environmental Quality (DEQ) have issued ...

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

With the air quality index at 105 for ozone, the state Department of Environmental Protection advises that people in sensitive groups reduce their exposure by choosing lessstrenuousactivities or ...