Air quality in United States

Air quality in Michigan today

Updated Sun, 25 Oct 2026 19:43:35 GMT

Moderate: average US AQI 69 across 22 cities in Michigan Worst now: Detroit (78); cleanest: Port Huron (53).

Live US AQI, PM2.5 and ozone for cities across Michigan, compared with the United States average.

Right now the modelled air quality in Michigan averages a US AQI of 69 (Moderate) across the 22 cities we track. By category: 22 Moderate (of 22).

That is 20 points worse than the United States average of 49, ranking 48 of 51 states from cleanest to most polluted.

Detroit has the worst air at 78 (PM2.5 14 µg/m³), and Port Huron the cleanest at 53. No tracked city is above 100, so no group needs to change plans.

Michigan cities by AQI (most polluted first)

City	US AQI	Category	PM2.5 µg/m³	PM10 µg/m³	Ozone µg/m³
Detroit	78	Moderate	13.6	14	95
Warren	78	Moderate	13.6	14	95
Sterling Heights	78	Moderate	13.6	14	95
Dearborn	78	Moderate	13.6	14	95
Taylor	78	Moderate	13.6	14	95
Allen Park	78	Moderate	13.6	14	95
Birmingham	78	Moderate	13.6	14	95
Ferndale	78	Moderate	13.6	14	95
Ann Arbor	73	Moderate	11.7	12	109
Canton	73	Moderate	11.7	12	109
Pontiac	71	Moderate	13.6	14	98
Waterford	66	Moderate	10.8	11	107
Adrian	66	Moderate	9.6	10	113
Kalamazoo	63	Moderate	6.2	6	118
Holland	63	Moderate	7.1	7	106
Grand Rapids	62	Moderate	5.6	6	115
Wyoming	62	Moderate	5.6	6	115
Jackson	62	Moderate	9	9	118
Lansing	61	Moderate	7.8	8	114
Holt	61	Moderate	7.8	8	114
Burton	59	Moderate	9.3	9	103
Port Huron	53	Moderate	9.6	10	95

US AQI	Category	What it means
0-50	Good	Air quality is satisfactory and poses little or no risk; a good time for outdoor activity.
51-100	Moderate	Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors.
101-150	Unhealthy for Sensitive Groups	People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors.
151-200	Unhealthy	Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed.
201-300	Very Unhealthy	Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors.
301-500	Hazardous	Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500.

Modelled by CAMS (Copernicus) via Open-Meteo, refreshed twice a day; read hour by hour from the forecast.