Smoke from Canadian wildfires prompted officials to issue another air quality alert for much of the Midwest.
Chicago recorded the worst air quality worldwide on Tuesday. The Illinois Environmental Protection Agency declared Tuesday and Wednesday an air quality action day for all of northeast Illinois and northwest Indiana.
Search by address below to see the latest air quality ratings nationwide and near you.
Good air quality is designated in green, moderate marked in yellow. Orange represents air quality unhealthy for at risk persons. Red represents unhealthy, purple very unhealthy. Hazardous is represented as dark purple.
