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

A combination of high heat, poor air quality, and the threat of severe thunderstorms is bearing down on New York City this ...

After dealing with fog early on the morning commute, some of it dense, we will be dealing with poor air quality before it ...

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 National Weather Service has issued an air quality alert due to heavy wildfire smoke from Canada. According to NWS models ...