Most of the air quality alerts pertain to "sensitive groups," including people with heart or lung disease and asthma. However ...

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.

Environment Canada has issued special air quality statements for southwestern Ontario as prairie wildfire smoke sits over ...

Smoke from ongoing wildfires in Canada is impacting the air quality in states across the Midwest and Northeast of the U.S.

Smoke from ongoing Canadian wildfires has led to some of the worst air quality in the world across parts of the U.S.

Canadian wildfire smoke is causing poor air quality today. Those with respiratory issues should limit outdoor time. Inland highs near 90 degrees, cooler along the coast.

More than 200 fires are burning in Canada, according to Natural Resources Canada. Of those, 59 fires are out of control. The ...

Meanwhile, city bus fares in Laval are $1 Monday because of the local transit authority’s decision to cut prices on smog days ...

Smoke from Canadian wildfires will move into the region Monday, Aug. 4, causing unhealthy air for sensitive groups.