WASHINGTON — The smoke from hundreds of ongoing wildfires in Canada has been causing problems across the United States and tens of millions of people are once again facing unhealthy air alerts. The ...

As of Thursday morning, Chicago, Detroit and Washington, D.C. were ranked as the three cities with the worst air quality in the world, according to IQ Air's Air Quality Index. Canada has over 250 ...

The Canadian wildfire smoke is affecting air quality across the U.S., including Indiana. FireSmoke Canada forecasts predict wildfire smoke could extend as far as Maine and the rest of the East Coast, ...

Smoke from Canadian wildfires is causing air quality concerns and hazy skies for many Americans in the Midwest and Northeast for another day this week. A map of the current Air Quality Index, the ...

We've seen over the past couple of years, major wildfires can have *** big impact on air quality and sometimes bad air quality isn't always obvious. Meteorologist Heather Waldman tells you how to ...

Angelenos still bothered by the smell of smoke may be surprised to see that Air Quality Index numbers returned to “healthy” or “moderate” levels this week in L.A. County, but they shouldn’t breathe a ...

The air quality in Detroit is unhealthy Friday with some areas in southeast Michigan even experiencing very unhealthy or hazardous conditions, according to the U.S. Air Quality Index. People with ...

BALTIMORE --All of Maryland is under a Code Red Air Quality Alert as wildfire smoke originating from Canada wafts into the region. Air quality will be unhealthy for everyone. If spending time outdoors ...

Poor air quality is expected to continue Wednesday in parts of the Midwest, Great Lakes and Upper Mississippi Valley thanks to the Canadian wildfires, according to the National Weather Service. As of ...