Air quality alerts and advisories have been issued in multiple states as Canadian wildfire smoke continues to spread.

To check your state's air quality, visit AirNow's website, and plug in your zip code, city or state. Here's what to know as of Wednesday, June 4. Parts of Wisconsin, Iowa, Illinois, Indiana and ...

Smoke from Canadian wildfires started making air quality worse in the eastern U.S. on Wednesday as several Midwestern states ...

An air quality alert has been issued for much of the Chicago area Wednesday afternoon as Canadian wildfire smoke once again ...

Rhode Island residents woke up to hazy skies Wednesday morning as smoke from wildfires in Canada makes its way across the ...

While the smoke may cloud your vision of the sky or ruin a day at the beach on this week's warmest days of the season so far, it is more than just a nuisance. All across the U.S., the smoke is causing ...

Smoke from numerous wildfires burning in south-central Canada has drifted over New Hampshire, and it's leading to reduced air ...

Connecticut air quality on Wednesday will be "unhealthy" for some people due to elevated levels of ground level ozone, a form ...

The Iowa Department of Natural Resources has announced an air quality alert across Iowa that will be in effect until 6 a.m., Thursday, June 5. During this time, Iowa DNR expects the air to contain an ...

Canada's wildfires, which have already forced evacuations of more than 26,000 people, continued their stubborn spread Tuesday, with heavy smoke choking millions of Canadians and Americans and reaching ...

Tens of thousands of residents have evacuated across Canada as the wildfire smoke makes its way south to the United States.

A gray haze from wildfire smoke could be seen in Cincinnati, and the entire state of Minnesota is under an air quality alert.