The National Weather Service reported an air quality alert at 11:45 a.m. EDT on Sunday in effect until Tuesday at midnight ...

Officials issued an air quality advisory for counties in southwest Michigan as Canadian wildfires burn. Here's what the air quality index shows.

Residents in the Capital region woke up Saturday to relatively fresh air conditions. Don’t get used to it, Environment Canada said in an early update. “There may be a brief improvement in air quality ...

Due to elevated ozone levels, several counties are under an air quality advisory Saturday and Sunday. Pollutants within the ...

Drifting smoke from wildfires is causing poor air quality and reduced visibility across nearly all of the Ottawa-Gatineau region, prompting Environment Canada to upgrade its alert to the highest risk ...

A Clean Air Action Day has been declared for nine counties in West Michigan for Monday, June 23 due to high levels of ozone.

A special air quality statement that was put in place June 5, when air quality in Ottawa reached "very high risk", has been lifted.

Smoke from wildfires still raging in Canada is degrading air quality across the northern U.S., turning skies a murky orange ...

Ottawa’s air quality was in the 4-5 range Wednesday (on a scale of 1-11 plus, with the lowest readings representing the best air quality).

After several smoky days in the capital, Environment Canada has lifted its special air quality statement for the city, but wildfires remain across the country.

EDT an air quality alert was reported by the National Weather Service in effect until Monday at midnight EDT for Muskegon, ...

As of 9 a.m. on June 11, here are air quality index readings in Michigan cities, according to AirNow's Air Quality Index: Grand Rapids: PM2.5 of 87; moderate. Marquette: PM2.5 of 86; moderate.