Armour Square 1 Air Quality

Monitoring Station · Near South Side, United States
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
26 11am
28
20
20 2pm
20
20
20 5pm
20
20
20 8pm
20
20
20 11pm
20
20
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Station readings
26
28
CAMS model adj -5
27
27
25
25
25
25
25
25
25
25
25
25
25
25
25

Air Quality Forecast (24h)

PM2.56.7 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

13
Near South Side 2
1.4 km PM2.5: 3.1 µg/m³
48
Lower West Side 3
1.4 km PM2.5: 11.6 µg/m³
25
Armour Square 2
1.6 km PM2.5: 6.1 µg/m³
28
Near West Side 4
1.6 km PM2.5: 6.8 µg/m³
28
Near West Side 4
1.9 km PM2.5: 6.8 µg/m³
21
Douglas 1
2.0 km PM2.5: 5.1 µg/m³
28
Near South Side 1
2.1 km PM2.5: 6.6 µg/m³
25
Bridgeport 1
2.2 km PM2.5: 6.0 µg/m³

Nearby Cities

23 Near South Side 40 Chicago 26 Bridgeport 24 Douglas 34 Lower West Side 31 Chicago Loop 34 McKinley Park 21 Grand Boulevard 25 Near North Side

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-05-29T14:52 UTC.