Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.

Canadian wildfire smoke has affected Wisconsin all week, prompting multiple air quality alert extensions from the DNR.

Air quality concerns grip Wisconsin as Canadian wildfire smoke continues to affect the region. The air quality advisory was ...

The Wisconsin Department of Natural Resources re-extended its air quality alert statewide as wildfire smoke lingers.

Hundreds of wildfires still burning in Canada are expected to undermine air quality across the Upper Midwest and Northeast ...

The smoke floating over the border shared between America and Canada is now impacting air quality in states as far south as Texas, AirNow's data shows. The EPA has declared the air quality in states ...

The Wisconsin Department of Natural Resources issued an air quality alert for all of southeast Wisconsin until noon on Monday ...

Hazardous smoke from Canada’s wildfire season has triggered the worst air quality in the U.S. with NASA’s EPIC satellite ...

The elevated levels of fine particulate matter resulting from wildfire smoke could present significant health risks.

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

Wisconsin is experiencing smoke from Canadian wildfires, leading to poor air quality and an Air Quality Advisory.

Smoke from Canadian wildfires has sent a blanket of smoke over the midwestern United States this weekend. The National ...