Air quality in states north of Tennessee has been reduced by smoke from Canadian wildfires, but how will those wildfires ...

Smoke from hundreds of wildfires burning across Canada has polluted skies and reduced air quality across large portions of the Midwest and Northeast in recent days, but forecasters expect conditions ...

The air quality index on Tuesday across the Midwest and the Northeast ranged from "moderate" to "unhealthy" for sensitive adults. Some areas in northern Wisconsin, eastern Pennsylvania, northern ...