Air quality · ZIP 48104

Air quality in Ann Arbor, MI

ZIP 48104 (Michigan) — air quality summary sourced from EPA AirNow. Data lands this week as the EPA AirNow ingestion pipeline rolls out.

Last verified 2026-04-24 · methodology

What lands here

Pages show the current AQI category (Good, Moderate, Unhealthy for Sensitive Groups, Unhealthy, Very Unhealthy, Hazardous), the nearest reporting station, and historical averages.

Source & refresh

EPA AirNow. Refreshed hourly real-time / daily historical. Stale data is flagged, never silently served. Primary source →

Limitations specific to this source

Rural ZIPs may not have a nearby monitoring station; zipradar then reports the closest available station with distance context.

Full dashboard for ZIP 48104

Air quality is one of twelve dimensions zipradar federates per address. See the full federated summary for ZIP 48104:

Open Ann Arbor, MI dashboard →