Toronto is currently the second most polluted major city in the world as wildfire smoke spreads across the city, according to a global tracker. The ranking by IQAir, a Swiss air quality technology ...

An air quality advisory is in effect until 12 a.m., Saturday, June 7, as Michigan continues to see effects of Canadian ...

Parts of Canada are seeing some of their most unhealthy air yet, and the smoke is likely to move over the United States again ...

Smoke coming in from Canadian wildfires settled over Chicago, causing unhealthy air quality conditions for at-risk groups.

EDT on Friday, the National Weather Service reported an air quality alert in effect until Saturday at midnight EDT for Van ...

As wildfire smoke prompts emergency evacuations across the country, travelling smoke has issued weather alerts in Ontario and Québec.

Vermont’s Department of Environmental conservation has issued an “Unhealthy for Sensitive Groups” air quality alert in northwestern Vermont.

Canadian wildfire smoke lingers over the Greater Lansing area on June 6. The entire Lower Peninsula is under an air quality ...

Ashtabula County skies have seen hazy conditions, as smoke from the ongoing Canadian wildfires has blown across the midwest. County Health Department Director of Environmental Health Randall Barnes ...

A Chicago Air Quality Alert has been extended through Friday as smoke from Canada wildfires has pushed the AQI into unhealthy ...

Smoke from wildfires in the Canadian Prairies will cause poor air quality and reduced visibility on Friday and possibly ...

An air quality alert remains in effect for the entire Chicago area, with another "Air Pollution Action Day" alert declared as ...