The air quality warning for the Greater Toronto Area has been lifted after being in place over the long weekend, Environment ...

Under a Code Orange alert, it's recommended that children, older adults and those with respiratory illnesses limit time spent ...

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.

Wood smoke is a major source of fine particulate matter — tiny particles that can enter deep into our lungs and even our ...

The air quality in several U.S. states is taking a hit as smoke floats over the border from the Canadian wildfires. Here's ...

I RYU/VCG via Getty ImagesRed flag warnings remain in place for parts of Nevada, Utah, Colorado and Wyoming due to very dry conditions, low humidity and gusty winds and fires in these areas may ...

In California, a fast-growing wildfire has scorched more than 65,000 acres in the Los Padres National Forest, with the flames ...

States across the U.S. are feeling the impact of the Canadian wildfires as air quality takes a hit from the smoke, according ...

Over 1,000 firefighters continue to battle a wildfire in California that has over 72,000 acres, prompted evacuation orders ...

The National Weather Service has issued an Air Quality Alert for areas north and west of Boston and Worcester for Tuesday.

An air quality statement was issued for the region and much of southern Ontario because of drifting smoke from western Canada ...

Toronto will once again see diminished air quality on Tuesday as smoke from forest fires in other regions drift into the city ...