Minnesota's Air Quality Reaches Unhealthy Levels Due to Wildfire Smoke and Ozone.

Minnesota is currently experiencing the worst air quality in the United States due to wildfire smoke from Canada and ozone pollution. The EPA reports that Minnesota has the worst AQI readings in the entire country, with several communities dealing with hazardous air. Northern and central Minnesota, including parts of the metro, are under an air quality alert until 6 a.m. Friday, while the remainder of the metro and southeastern Minnesota will be in effect until 8 p.m. Thursday. Air quality is expected to improve as wildfire smoke dissipates in the coming days.