The hazy skies in the Chicago area are the visible sign of the poor air quality Thursday as smoke from Canadian wildfires ...

Iowa will be blanketed by Iowa hazy skies for the next few days with the air quality index spiking and causing poor ...

Last week, Canadian wildfire smoke blanketed Wisconsin and caused the Air Quality Index to reach the unhealthy level for ...

On Thursday at 3:48 a.m. EDT an air quality alert was reported by the National Weather Service in effect until Friday at ...

On Thursday at 4:15 a.m. EDT the National Weather Service reported an air quality alert in effect until Friday at midnight ...

It expires on Friday at midnight, due to elevated levels of fine particulate (PM2.5), the Department of Environment, Great ...

The Pennsylvania Department of Environmental Protection declared a Code Orange Air Quality Action Day for Wednesday, due to ...

The heat and humidity mixed with smoke resulted in a "code orange" alert for Philly and its suburban counties.

The wildfire smoke has reached down to the surface and is impacting visibility down to a few miles for most. The Walker Tower ...

Air quality reaches red 'unhealthy' category as Canadian wildfire smoke blankets the state, affecting all residents ...

Canadian wildfire smoke will continue to impact Wisconsin's surface air quality over the next several days. The current ...

Wildfire smoke continues to spread southward, keeping air quality concerns heightened through the end of the work week.