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

NEW YORK (WABC) -- Canadian wildfire smoke will make for a hazy sky and reduced air quality for Monday into Tuesday.

Wildfires in northern Manitoba are forcing thousands of residents from a Cree Nation out of their homes over poor air quality ...

Wildfire smoke from the Prairies today is forecast to fill the skies from Vancouver Island to Charlottetown with gritty, hazy ...

An air quality statement is in effect for Toronto and the surrounding region as wildfire smoke continues to drift south, ...

An Air Quality Health Advisory has been issued for Niagara County and the rest of Western New York through midnight due to ...

A Greenwood and Danforth measuring station reported the city’s worst air quality Saturday evening. Smoky skies are likely ...

Wildfire smoke from the Prairies has prompted special air-quality statements and warnings across the country Saturday. Smoke from forest fires is causing reduced visibility and poor air quality that ...

Environment Canada has issued a special air quality statement for most of southern Ontario, including the GTA. The national weather service says smoke from forest fires is causing or expected to cause ...

Smoke from Canadian wildfires have continued to drift over the Midwest, blanketing the region with haze and poor air quality, prompting the National Weather Service (NWS) and local departments to ...