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

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

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

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

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