Near West Side 4

Monitoring Station · Chicago, United States
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
48 5pm
26
48
48 8pm
48
48
48 11pm
61
61
61 2am
61
86
86 5am
86
61
— 8am
—
—
— 11am
—
—
— 2pm
—
—
Station readings
26
CAMS model adj +11
37
37
37
37
37
37
37
50
50
50
50
75
75
75
50

Air Quality Trend (24h)

PM2.56.3 µg/m³ ✓ WHO
Good

Nearby Monitoring Stations

30
Near West Side 4
1.3 km PM2.5: 7.3 µg/m³
30
Lower West Side 3
1.4 km PM2.5: 7.1 µg/m³
28
Near West Side 5
1.5 km PM2.5: 6.6 µg/m³
26
Near West Side 3
1.8 km PM2.5: 6.3 µg/m³
30
Armour Square 1
1.9 km PM2.5: 7.3 µg/m³
26
Near West Side 2
2.0 km PM2.5: 6.3 µg/m³
32
Lower West Side 2
2.1 km PM2.5: 7.6 µg/m³
28
Near South Side 1
2.6 km PM2.5: 6.8 µg/m³

Nearby Cities

28 Chicago 28 Lower West Side 28 Near South Side 28 Chicago Loop 28 Bridgeport 28 West Town 28 Near North Side 28 McKinley Park 28 Douglas

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T20:27 UTC.