Smoke from Canadian wildfires began to worsen air quality in the eastern U.S. on Wednesday as several Midwestern states ...

The ongoing Canadian wildfires have reportedly blanketed a third of the United States, affecting millions, with the National ...

Smoke from more than 100 wildfires blazing in Canada is expected to spread to impact air quality in more U.S. state.

Parts of central Pennsylvania are under a code orange air quality alert, but the Midwest is seeing bigger air quality ...

At 3:45 p.m. on Tuesday, the National Weather Service reported an air quality alert in effect until Thursday at midnight for ...

Wildfires in Canada have triggered widespread evacuations and hazardous air quality alerts across the northern United States.

Smoke from Canadian wildfires is making its way to Massachusetts, causing hazy skies and air quality concerns over the next ...

A ridge of high pressure allowed smoke to filter into parts of the Northeast almost all week. While the smoke never made it's ...

A series of wildfires burning across central Canada sent smoke billowing into the U.S. over the weekend, with few signs that ...

Parts of Montana, North Dakota, South Dakota, Minnesota, Iowa and Illinois had swaths of air quality warnings ranging ... air pollution and increased health concerns.

Smoke from Canadian wildfires spread over a third of the US, with poor air quality in parts of New York, New England, and the ...

Canadian wildfire smoke is fouling air quality in the US and several states, including Minnesota, Wisconsin, and Michigan, experience unhealthy air. Wildfire smoke has been fouling U.S. air quality ...