Michigan Department of Environmental Quality

Forecast Discussion

Site	Avg. Period	Latest (μg/m³)	Today's Max	Yesterday's Max
Allen Park	1-hr	11 at 9PM	13 at 8AM	12
	24-hr	7.5 at 9PM	8.7 at 9AM	7.8
Bay City	1-hr	12 at 9PM	16 at 8AM	11
	24-hr	7.8 at 9PM	8.6 at 11AM	7.9
Dearborn	1-hr	14 at 9PM	22 at 8AM	11
	24-hr	9.8 at 9PM	9.9 at 10AM	7.4
Detroit - Newberry	1-hr	11 at 9PM	22 at 8AM	12
	24-hr	9.7 at 9PM	9.7 at 9PM	8
Detroit - W Lafayette	1-hr	14 at 8PM	34 at 4AM	14
	24-hr	10.9 at 8PM	12 at 8AM	8.4
Flint	1-hr	11 at 9PM	13 at 9AM	11
	24-hr	8.7 at 9PM	9.3 at 9AM	8.5
Grand Rapids	1-hr	10 at 9PM	32 at 2PM	10
	24-hr	12.2 at 9PM	12.2 at 9PM	6.9
Houghton Lake	1-hr	8 at 9PM	14 at 8AM	9
	24-hr	7.1 at 9PM	7.3 at 5PM	6
Kalamazoo	1-hr	20 at 9PM	20 at 9PM	11
	24-hr	9.6 at 9PM	9.8 at 9AM	8.5
Lansing	1-hr	6 at 9PM	13 at 8AM	10
	24-hr	7.4 at 9PM	8 at 9AM	7.1
Port Huron	1-hr	14 at 9PM	26 at 12PM	14
	24-hr	12.9 at 9PM	13.2 at 5PM	8.6
Seney	1-hr	10 at 9PM	10 at 9PM	21
	24-hr	5.5 at 9PM	6.3 at 2PM	5
Ypsilanti	1-hr	14 at 9PM	14 at 9PM	12
	24-hr	8.3 at 9PM	8.5 at 6AM	8.3

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