Experts say people should take precautions such as wearing an N95 mask while outdoors or heading inside and closing the ...

The worst air in the country on the morning of June 14 was in New Castle County because of a wildfire in New Jersey. The air ...

Ohioans should monitor the air quality index daily this summer, as wildfires in Canada send smoke down to the Midwest and ...

Rain continues in much of northern Alberta, clearing wildfire smoke and helping firefighting efforts across the province.

By June 27, 2023, the haze gave Detroit the worst air quality in the world, according to the IQAir Air Quality Index. As of Thursday night, Detroit's air quality was rated "good" by IQAir.

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Smoke from Canadian wildfires drifted down heavily into Montana on Wednesday and Thursday, covering a large swath of north-central Montana.

Officials at Cleveland Department of Public Health are keeping an eye on local threats to the region’s air quality, including ...

Once the smoke rises high enough into the atmosphere, strong winds can carry it across regions, allowing smoke from Canadian ...

Typically, during the summer months of June, July and August, when the wind goes northwest behind a front, the New York sky ...

Health officials issued a ground-level ozone warning Thursday for the lower Hudson Valley, New York City and Long Island.

Toxic air spreads hundreds or even thousands of miles from where wildfires burn. Last week, Chicago felt the sting—and ...