The Air Quality Index (AQI) uses a color-coded system to inform the public about air quality levels. Fine particulate matter (PM2.5) is a dangerous pollutant that can cause serious health ...

Canadian wildfire smoke remains in Michigan. On July 16, officials issued an air quality advisory for western counties.

Canadian wildfire smoke is causing air quality alerts and advisories across Michigan. PM2.5 levels are unhealthy in several Michigan cities, prompting recommendations to limit outdoor activities ...