Multiple U.S. states and Canadian provinces are experiencing poor air quality from wildfire smoke. Here's where.

Smoke from wildfires in Manitoba, a Western province facing its worst fire season in 30 years, has created hazardous air ...

The Chicago area recorded ozone levels of 156 late Monday afternoon. Levels above 100 are considered unhealthy. Residents ...

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

An Air Quality Alert will be in effect through midnight Tuesday for Southeast Michigan, the state's Department of Environment ...

The Canadian wildfires are expected to track east and south, expanding in Michigan as Sunday goes on and additional smoke is ...

Additional plumes of smoke from Canada's active wildfires prompt officials to issue a statewide air quality alert on July 14.

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

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

The Michigan Department of Environment, Great Lakes, and Energy issued southeast Michigan's sixth air quality advisory of the ...

The Michigan Department of Environment, Great Lakes, and Energy expects particle pollution to reach the Unhealthy for ...

Canada had some of the worst air quality in North America on Tuesday morning according to waqi.info, the website for the ...