Dhaka, the overcrowded capital city of Bangladesh, has ranked first on the list of cities with the worst air quality with an ...

Plumes of smoke continue blanketing large swaths of the U.S. and parts of Europe, which presents risks for those breathing it. The Midwest, Northeast and Great Lakes regions of the U.S. have "very ...

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 ...

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.

Butler County residents sensitive to air quality should remain inside Thursday, June 12, with the significant concentrations of ozone gases, according to the Pennsylvania Department of Environmental ...

An air quality advisory for Long Island is the result of smoke from Canada wildfires, New York State officials say.

An air quality alert was issued by the National Weather Service in Green Bay at 03:42 a.m. on Thursday, June 12.