zipradar

Air quality · ZIP 60611

Air quality in Chicago (Streeterville), IL

ZIP 60611 (Illinois) — 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.

Illinois context

Lead service lines, flooding (Mississippi/Illinois)

Illinois has the highest LCRR lead-service-line replacement obligations in the US (Chicago alone >400,000 LSLs). FEMA AE coverage extends along the Mississippi, Illinois, and Rock rivers. EPA SDWIS shows urban vs. downstate disparity.

See Illinois state page for the full state-level rollup across all 12 dimensions.

Read more on air quality

Editorial deep-dives explaining the source data, its limits, and how to read it.

Full dashboard for ZIP 60611

Air quality is one of twelve dimensions zipradar federates per address. See the full federated summary for ZIP 60611:

Open Chicago (Streeterville), IL dashboard →