Most of Minnesota and parts of Montana, North Dakota and Wisconsin were ranked “unhealthy” for air quality on a U.S. Environmental Protection Agency map.

BISMARCK, N.D. — (AP) — Much of the Upper Midwest on Saturday was dealing with swaths of unhealthy air because of drifting ...

Smoke from Canadian wildfires is expected to drift into North Dakota again in coming days, potentially degrading air quality.

Multiple U.S. states and Canadian provinces are experiencing poor air quality from wildfire smoke. Here's where.

The haze from the Canadian wildfire smoke has lingered around Northeast Ohio for days, though for the most part the air quality has remained safe.

The Mid-Ohio Regional Planning Commission issued an air quality alert July 5 for the Columbus area as Canadian wildfire smoke, fireworks emissions and sunny weather were all predicted to lower the ...

The Bay Area Air District has extended an air quality advisory through Thursday because of wildfire smoke coming from Canada. The advisory was first issued Monday for smoke from fires in Alberta ...

Canadian wildfire smoke is back: Tips to keep it out of your home US and Canada wildfire smoke map: See air quality warnings near you ...

“Emergencies have no borders — we are deeply grateful to our neighbours in Mexico for their unwavering support during one of ...

A wildfire raging along the Grand Canyon’s North Rim that leveled a historic lodge erupted over the weekend after burning for ...

Finstad leads letter to Canadian ambassador over wildfire smoke concerns Minnesota's four Republican representatives and two Wisconsin Republicans sent the letter to Canada's ambassador to the U.S ...

Minnesota’s 4 GOP representatives write to Canadian ambassador over wildfire smoke The Republican representatives joined 2 Wisconsin Republicans to send the letter Monday ...