If you’re in eastern Pennsylvania or New Jersey and noticed a haze in the sky Sunday morning, you weren’t imagining things.

An air quality health advisory is in place until midnight due to elevated levels of fine particulate matter, city officials ...

New York City’s air quality has dropped to unhealthy levels for sensitive groups as smoke from Canadian wildfires drifts into ...

Officials are urging residents to take precautions as wildfire smoke and extreme heat bring poor air quality and health risks ...

Smoke from Canadian wildfires persisted across the Upper Midwest on Friday, prompting air quality alerts for millions.

The 'unhealthy for sensitive groups' air quality in Chicago comes as an air quality alert was issued for the entire state of ...

An air quality alert is in effect for nearly the entire state through Friday, but northern and central Minnesota will bear ...

The Canadian wildfire smoke that covered northwest Wisconsin July 24 has moved south and is causing air quality problems in ...

Canadian wildfire smoke no longer lingers in Michigan as of July 18. Southwest Michigan will experience unhealthy air for sensitive groups on July 21.

If you were planning to be outdoors on Saturday, you might want to reconsider. That's because an air quality alert has been ...

An air quality alert was issued by the National Weather Service in Green Bay at 1:52 p.m. on Wednesday, July 23.

Milwaukee, Ozaukee, Racine, Kenosha and Sheboygan are all under a poor air quality alert from noon to 11 p.m., according to ...