Officials warned young children and those with respiratory illnesses to take precautions. For weeks, smoke from Canadian ...

Canada is experiencing a mix of extreme weather. Several alerts are in place across the country. Southern Quebec will face ...

State officials from Maine to New York issued alerts for fine particulate matter, a toxic byproduct of wildfires that is small enough to be inhaled.

The air quality index (AQI) is predicted to be above 100 in much of New York state on Saturday, and could reach 135. Alerts ...

As a large swath of Manitoba deals with heavy wildfire smoke polluting the air, others in the province are starting ...