Millions of Canadians were warned to limit their time outdoors on Sunday with wildfire smoke hanging in the air from B.C.

ALBANY — Smoke from Canadian wildfires will continue to worsen air quality across the region Monday morning and could reach ...

At the Minnesota Pollution Control Agency (MPCA), most of Minnesota was classified as having “moderate” air quality late ...

The Michigan Department of Environment, Great Lakes and Energy reported. Pollutants across the state are expected to be in ...

While the haze slightly lifted Saturday morning, air quality levels are expected to worsen across the Chicago area over the ...