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

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

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 ...

Smoke from wildfires in eastern Ontario is settling in amid the ongoing heat warning, prompting Environment Canada to issue a ...

With various air quality indexes available, and as wildfire smoke becomes an increasing health risk, here’s what often goes ...

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

Western winds have pushed smoke plumes from Prairie wildfires toward Quebec and Ontario, including Toronto and the GTA ...

The Michigan Department of Environment, Great Lakes, and Energy issued an Air Quality Advisory for five West Michigan ...

The National Weather Service reported an air quality alert at 11:54 a.m. EDT on Sunday in effect until Tuesday at midnight ...

The Michigan Department of Environment, Great Lakes, and Energy issued an Air Quality Advisory for five West Michigan ...

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

The air quality, according to Environment Canada, in the nation’s capital on Tuesday has improved. The weather agency shows Ottawa’s Air Quality Health Index is at a level 5, or in the moderate risk ...