Smoke From Wildfires May Affect Air Quality for 100 Million in U.S.

Smoke from wildfires in northern Minnesota and western Ontario, Canada, is expected to spread across the Midwest, Northeast, and Mid-Atlantic regions in the U.S. from Wednesday to Friday.

Approximately 100 million people may experience unhealthy air quality conditions during these days.

Forecasts suggest that the smoke will travel through the lower levels of the atmosphere, affecting air quality across these regions.