Air quality index (AQI) explained
Wildfire smoke returns Thursday and Friday
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IU Health LifeLine pilot Jeff Payton has seen skies with visibility this poor before, but never in America.
The smoke from the Canadian wildfires will likely impact Massachusetts and the local air quality yet again. The Massachusetts Department of Environmental Protection's forecast for Thursday mentions the Canadian wildfire smoke.
The Michigan Department of Environment, Great Lakes and Energy issued the alert for the entire state that goes through at least noon Thursday.
In the Detroit area, the Environmental Protection Agency's Air Quality Index (AQI) has been between Orange (unhealthy for sensitive groups) and Purple (very unhealthy) with some areas occasionally moving into the Maroon (hazardous) level on Wednesday. Here's what that means for your health: