With hundreds of wildfires burning across Canada, smoke has drifted into the northern United States, lowering air quality ...

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.

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

The summer of 2025 has brought some of the worst air quality ever recorded to large parts of the United States. Cities across the Midwest and Northeast—especially Chicago, Detroit, Cleveland, New York ...

As of Aug. 6, there are about 750 active Canadian wildfires, with at least 190 labeled “out of control,” according to the ...

Air quality in parts of Michigan, Wisconsin, New York and Ohio was in the "unhealthy" category on Monday morning ...