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.

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 ...

Most of the active Canadian wildfires, 74, are in British Columbia, followed by 56 in Alberta, 25 in Manitoba, between 16 and 19 each in Ontario and Saskatchewan, ... The air quality index, or ...

Haze from Canadian wildfires is seen over Lake Michigan as a person runs along the shoreline Monday in Chicago. Wildfires burning in British Columbia, Alberta, Saskatchewan, Manitoba and Ontario are ...

Smoke from Canadian wildfires triggers air quality alerts in northern Michigan and the Upper Peninsula. Residents, especially sensitive groups, are urged to stay indoors and limit outdoor activities.

The air quality index is based on concentrations of PM2.5, or fine particulate matter less than 2.5 microns (0.0025 millimeters) in diameter. (For comparison, a human hair is about 20 to 30 times ...

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 ...

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 ...