Toronto will once again see diminished air quality on Tuesday as smoke from forest fires in other regions drift into the city ...

The wildfire smoke may persist through today (Tuesday) and possibly Wednesday,” said Environment Canada in a Tuesday morning ...

Poor air quality warnings due to wildfire smoke are still in place for the Greater Toronto Area on Tuesday for the fourth ...

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

Environment Canada has issued special air quality statements for southwestern Ontario as Prairie wildfire smoke sits over ...

The wildfire smoke may persist through today (Tuesday) and possibly Wednesday,” said Environment Canada in a Tuesday morning ...

A stretch of southern Ontario remains under a special air quality statement today amid smoke from wildfires burning in parts ...

A stretch of southern Ontario remains under a special air quality statement today amid smoke from wildfires burning in parts ...

Forecasters say weak winds have left Canadian wildfire smoke to linger over the U.S. Stronger winds are expected to bring relief later in the week.

Burlington has the worst air quality in the country on Monday compared with other Canadian cities according to the World Air ...

PM2.5 — is expected to push the Air Quality Index over 100, reaching levels unhealthy for sensitive groups, including ...

The wildfire smoke may persist into Tuesday and possibly Wednesday,” said Environment Canada in a Monday afternoon statement.