An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.

2025 Canada wildfires continue to burn, as smoke from the Canadian fires are affecting U.S. air quality in several states, including Indiana. What we know.

2025 Canada wildfires continue to burn, as smoke from the Canadian fires are affecting U.S. air quality in several states, including Indiana. What we know.

Officials issue an air quality advisory for counties in southwest Michigan as Canadian wildfires burn. Here's what the air ...

Canadian wildfires are impacting air quality in the Midwest and Northern Plains. Smoke may cause reduced visibility and respiratory problems. Several states, including Indiana, Illinois, and ...

The air quality index, or AQI, is a standardized rating system that assesses the severity of air pollution on a scale ranging from 0 to 500. The higher the number, the worse the quality.

More than 25,000 residents in three provinces have been evacuated as wildfires remained active and diminished air quality in parts of Canada and the U.S.

What does PM2.5 mean on the air quality index? This unit is used to measure the fine particulate matter in the air, such as, smoke, dust, soot or dirt. The "2.5" figure means particles are 2.5 ...

An air quality advisory was issued across the Upper Peninsula as smoke from the Canadian wildfires continues to pollute the air. Farther from the plumes , however, Lansing is seeing acceptable air ...

2025 Canada wildfires continue to burn, as smoke from the Canadian fires are affecting U.S. air quality in several states, including Indiana. What we know.