Parts of Canada are seeing some of their most unhealthy air yet, and the smoke is likely to move over the United States again ...

The Air Quality Index (AQI) uses a color-coded scale to inform the public about air pollution levels and potential health ...

In the upper Midwest of the United States, Michigan, Wisconsin and Minnesota have issued air quality warnings as smoke from ...

Wildfires are still raging in Canada, where there have been dozens of active fires, and over 33,000 people have been forced ...

Wildfires have forced a further 1,000 people to flee their homes in the Canadian province of Manitoba, which is under a state ...

An air quality advisory is in effect until 12 a.m., Saturday, June 7, as Michigan continues to see effects of Canadian ...

Michigan's air, which has been tainted for several days by wafting smoke from Canadian wildfires, is expected to improve over ...

Smoke coming in from Canadian wildfires settled over Chicago, causing unhealthy air quality conditions for at-risk groups.

EDT on Friday, the National Weather Service reported an air quality alert in effect until Saturday at midnight EDT for Van ...

Detroit currently ranks as the city with the worst air quality in the world as smoke from Canadian wildfires continues to ...

Poor air quality fuelled by wildfires burning across the Prairies left a large swath of the country enveloped in a haze for ...