Canadian wildfires, along with high temperatures, are partly to blame for hazy skies and foul air. But passing storms may ...

The Air Quality Index (AQI) uses a color-coded scale to inform the public about air pollution levels and potential health ...

Michigan's air, which has been tainted for several days by wafting smoke from Canadian wildfires, is expected to improve over ...

The air quality alert may need to be extended into Monday if an additional batch of heavy smoke materializes from Manitoba ...

Active children, the elderly and people with asthma and COPD are more likely to suffer an increase in the number and severity ...

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for all of Minnesota due to smoke from the ...

Wildfire smoke has sparked the national weather agency to issue air quality warnings around the county of Grande Prairie and ...

Edmonton is launching its extreme weather response as wildfire smoke is expected to cause a plunge in air quality.

Environment Canada says wildfire smoke is affecting air quality in northeastern British Columbia.

The Maine Department of Environmental Protection warns that unhealthy conditions may persist through the weekend.

Conditions are expected to gradually improve Sunday as winds dillute the fine particulate matter that affects health.

Much of southern Ontario was under an air quality statement on Thursday and Friday that lifted early Saturday morning.