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

When combined with the Philly area’s warm, sunny weather, the incoming smoke stands to increase levels of ozone, the ...

Air quality warnings covering the whole state are expected to remain in place through Saturday due to Canadian wildfire smoke ...

As the air quality in Minnesota remains dangerous, experts are giving advice. "It's not a one-size-fits-all answer," said Dr.

The state of Minnesota is entering another in a long string of summer days marred by air quality alerts. Poor air quality ...

Minneapolis had the fifth worst air quality among 125 cites worldwide on Saturday morning, according to an international air ...

Air quality alerts were in effect in Iowa, Minnesota, Wisconsin and Michigan, as well as eastern Nebraska and parts of ...

Forecasters say weak winds have left Canadian wildfire smoke to linger over the U.S. Stronger winds are expected to bring ...

The MPCA says that sensitive groups should avoid prolonged or heavy exertion, and everyone should limit their time spent ...

Health officials from Minnesota to Maine have issued alerts warning of poor air quality from wildfires burning in Canada.