EDT on Tuesday, the National Weather Service reported an air quality alert in effect until Thursday at midnight EDT for ...

Montreal had the worst air quality in the world on Saturday as smoke from wildfires in the Prairies drifted east. In addition ...

The heat warning issued last Friday for the Ottawa-Gatineau region should last until Thursday night, according to Environment Canada. Special air quality statements also linger Tuesday in western ...

The EPA's Air Quality Index can tell you whether breathing outside air can be harmful. Here's how to read the scale to plan accordingly in Michigan.

The National Weather Service reported an air quality alert at 11:54 a.m. EDT on Sunday in effect until Tuesday at midnight EDT for Mason, Lake, Osceola, Clare, Oceana, Newaygo, Mecosta, Isabella, ...

The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has issued an Air Quality Alert for coastal Michigan ...

Saskatchewan Roughriders fans who headed to Regina's Mosaic stadium Friday had a rough night, sitting through rounds of ...

The weather agency has issued a special air quality statement for much of Manitoba, noting that air quality and visibility due to wildfire smoke can fluctuate over short distances.

Wildfire smoke degrades air quality in swaths of Ontario, with Toronto ranking among the worst in the world on Monday.

Much of Central Canada, Manitoba and Saskatchewan were placed under special air quality statements or warnings on Monday due to smoke from wildfires, as Environment Canada advised residents to limit t ...

Cruise vessels are leaving billions of litres of wastewater in their wake despite longtime promises of action by the federal ...