A number of states in the United States have declared air quality warnings with concerning levels noted across many of the ...

Smoke from hundreds of wildfires in Canada is lingering over the northern U.S., spreading across to roughly a dozen states ...

Large wildfires in remote regions of Canada sent smoke billowing across the border, inundating northern New England with ...

Canadian wildfire smoke blanketed the skies from the Midwest to the Northeast this week, causing air quality reading to ...

NYC's air quality suffers due to Canadian wildfires, affecting respiratory sufferers, with alerts across the US.

Due to smoke from wildfires, several U.S. cities had an AQI over 100 on Aug. 5, which means the air is unhealthy for ...

It's unclear whether and how Texas law enforcement will be able to work with out-of-state law enforcement to execute an ...

PHILADELPHIA (WPVI) -- Smoke particles from Canadian wildfires are causing air quality concerns in the Philadelphia region on ...

This is the second most severe fire season on record in Canada, according to the National Interagency Fire Center.

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

An air quality alert is in effect for the entire state of Maine and New Hampshire due to a thick plume of smoke from Canadian ...

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.