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

The heat warning issued last Friday for the Ottawa-Gatineau region should last until Thursday night, according to Environment ...

A large, natural gas-fired power plant in Van Buren County exceeded emissions limits for particulate matter and carbon ...

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.

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

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

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

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

Much of Central Canada, Manitoba and Saskatchewan were placed under special air quality statements or warnings on Monday due ...

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

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 ...