The effect of Canadian wildfire smoke invading your air - toxic particles create hazardous breathing conditions across multiple states.

Smoke from the more than 700 wildfires burning in Canada is continuing to blanket parts of the Midwest for a final day.

Wildfires worsened by climate change spewed smoke over much of North America this year. It's a new reality Americans haven't yet processed: how dangerous the smoke is for human health.

Does your throat feel scratchy? An air quality alert is in effect for Connecticut due to smoke from the ongoing Canadian wildfires.

The alert is expected to be in place until at least 6 a.m. Friday due to wildfire smoke coming from northern Alberta and Saskatchewan.

Here's what to know about the health effects of wildfire smoke as it continues to infiltrate the U.S.

Three summers ago, the Caldor Fire burned its way up the Western Slope into the Tahoe Basin, scorching 221,835 acres. The fire burned for over two months, cloaking the lake and its surrounding ...

An air quality alert remains in effect across Central California as smoke from dozens of lightning-sparked wildfires continues to blanket the region. Experts say the smoke is "sloshing" in the ...

A stream of wildfire smoke from Northern California is moving toward the Bay Area Thursday, prompting an air quality advisory from the Bay Area Air Quality Management District.

The smoke is expected to clear out of Oregon's skies this week and air quality will improve, although the process will take longer in some parts of the state.