The air quality index on Tuesday across the Midwest and the Northeast ranged from "moderate" to "unhealthy" for sensitive adults. Some areas in northern Wisconsin, eastern Pennsylvania, northern ...

NBC News’ Liz Kreutz reports from Los Padres National Forest where the largest fire in California is burning out of control.

The wildfire smoke from Canada that has turned the sky in New England hazy can be harmful for some people, but there are ...

As the city's surface warms, it heats the air above it, causing that air to rise. This rising motion can pull in smoke-laden ...

You may be experiencing a range of issues, from watery eyes to headaches to breathing problems. The current air quality alert ...

More than 700 wildfires are currently burning in Canada. This is effecting the air quality in the United States, including in ...

CHICAGO (WLS) -- An air quality alert was issued for the greater Chicago area on Tuesday. The alert was issued by the EPA at about 11:56 a.m. It will be in effect until midnight. Lake, Porter, Newton ...

Because of all of the smoke, the Pennsylvania Department of Environmental Protection has declared a Code Orange Air Quality ...

More than 700 wildfires are burning in Canada as of Tuesday evening. Donald Trump makes major announcement on political ...

The remaining 10 states affected by medium to heavy smoke from the wildfires are Colorado, New York, New Jersey, Connecticut, Pennsylvania, Vermont, Massachusetts, Indiana, New Hampshire, and ...

The fires have resulted in hazardous air-quality conditions across much of Canada and the northern U.S. They are continuing ...

An Air Quality Alert remains in effect for the entire Susquehanna Valley until 12 AM Wednesday. Overnight lows will drop to the mid-60s with highs on Wednesday in the low/mid-80s.