Air quality has taken a serious hit across the United States as a twofold blow of wildfires in the West and in Canada have ...

Air quality alerts are in effect in the Philadelphia area, fueled by smoke from wildfires that are burning thousands of miles ...

Several rounds of wildfire smoke have been moving into Denver, Boulder, Fort Collins and communities up and down the I-25 ...

Each New England state has seen an uptick in the number of days over the last five years when fine particulate matter (PM2.5) ...

The satellite imagery shows the wildfire smoke as a fuzzy white look on the images. The wildfire smoke is thick just to ...

The Bear Gulch Fire has been burning for nearly a month in the southeast part of the Olympic Peninsula, sending smoke ...

Continuing smoke from the Canadian wildfires is causing the north country to be under an Air Quality Alert for the third ...

Hundreds of wildfires still burning in Canada are expected to undermine air quality across the Upper Midwest and Northeast ...

Canada is battling more than 700 active wildfires across the country, roughly two-thirds of which are burning out of control, ...

Air quality remains poor in parts of Canada as wildfire smoke travels along the jet stream — with Europe now in its path.

Anyone who might be especially vulnerable to the effects of air pollution should limit their outdoor activities.

Hazy skies descend over the New York City area again on Tuesday, re-upping some air quality alerts related to Canadian ...