Ontario wildfire smoke drove Michigan AQI to 616 as researchers warn the threat is growing, Michigan, Grand Rapids Beloud

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Ontario wildfire smoke drove Michigan AQI to 616 as researchers warn the threat is growing

Ontario wildfire smoke drove Michigan AQI to 616 as researchers warn the threat is growing

In mid-July, Grand Rapids, Michigan, recorded a hazardous air quality index of 616 due to wildfire smoke drifting from Ontario. Researchers warn that such smoke events are becoming more freq...

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