The smoky air is predicted to reach New York City on Monday, and it could bring unhealthy air quality for sensitive groups.

Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air for at ...

Hundreds of wildfires still burning in Canada are expected to undermine air quality across the Upper Midwest and Northeast ...

The "unhealthy" air, which ranks as level four of six on the Air Quality Index, comes after multiple consecutive days of air quality alerts.

Health officials from Minnesota to Maine have issued alerts warning of poor air quality from wildfires burning in Canada.

Smoke and grit from hundreds of forest fires have spread across large parts of Canada and the northern US, sending air quality across the Midwest and northeast US and Toronto to unhealthy levels.

The festival kicked off Thursday, when Chicago had the worst air quality in the world for a few hours. But haze didn't choke ...

Canadian fires bring dangerous air quality to the US, impacting millions of Americans Dry weather and gusty winds in the Midwest have increased the wildfire risk.

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.

The smoke floating over the border shared between America and Canada is now impacting air quality in states as far south as Texas, AirNow's data shows. The EPA has declared the air quality in states ...

Air quality alerts from Canadian wildfire smoke spread to the Northeast on Sunday, stretching as far as northern Maine. It ...