The data that goes into the Air Quality Index comes from 5,000 air monitors across the country, including local, ... one for ...

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

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

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

“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 ...

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.

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

The Independence Day holiday will open with fairly extensive cloud cover and chances for showers, but expect skies to clear ...

The ozone Air Quality Index (AQI) is expected to reach levels considered unhealthy for sensitive groups (orange), according to the Wisconsin Department of Natural Resources. Those in sensitive groups ...