Smoke from Canadian wildfires began to worsen air quality in the eastern U.S. on Wednesday as several Midwestern states ...

The ongoing Canadian wildfires have reportedly blanketed a third of the United States, affecting millions, with the National ...

As hundreds of wildfires burn across Canada, smoke is traveling south and potentially affecting Americans’ health. Here's why ...

Smoke from Canadian wildfires is engulfing much of the eastern and central United States and and is expected to continue for ...

Milwaukee currently has the worst air quality in the U.S., The New York Times reported on June 4. Here's what you need to ...

Chicago had the worst air quality overnight Wednesday into Thursday, the latest American city to feel the impact of wildfire ...

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

The U.S. Environmental Protection Agency warns that wildfire smoke contains dangerous pollutants in the form of fine ...

ABC News Chief Meteorologist Ginger Zee has the latest on the air quality alerts across the Midwest caused by smoke from the Canadian wildfires and the severe storms possible across the South.

While both dust and smoke are similar, it's also important to point out their differences. Here's how to tell what's causing the haze in your skies.

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