The EPA's Air Quality Index can tell you whether breathing outside air can be harmful. Here's how to read the scale to plan ...

The Illinois EPA declared an Air Pollution Action Day in the Chicago metro area. See today's air quality index forecast for Illinois.

Manitoba is looking to expand the infrastructure it has to monitor air quality, a step experts say is important to better map ...

The current infrastructure also isn’t set up to fully account for the shifting behavior of wildfire smoke, which can travel ...

Delhi's air quality remains "satisfactory," with light rain recorded and a yellow alert for possible moderate rainfall on ...

President Bill McQuade’s theme for 2025-26 is healthy buildings. That goal doesn’t have to come at the expense of energy ...

Columbus' air quality is yet again expected to dip into "unhealthy for sensitive groups" levels on June 12.

Many studies have shown how reduced air quality can compare to smoking cigarettes. Moderate air quality currently is like smoking one cigarette per day.

The EPA's Air Quality Index can tell you whether breathing outside air can hurt you. How to read the scale.

The Air Quality Health Index was first created to show possible health and environmental impacts to vegetation, visibility and human and animal health.

An air quality alert remained in effect for the entire Chicago area Friday, with another "Air Pollution Action Day" alert declared as wildfire smoke from Canadian wildfires continues to impact ...