Armour Square 1 Air Quality

Monitoring Station · Near South Side, United States
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
62 5pm
60
53
53 8pm
53
53
53 11pm
52
53
55 2am
55
55
53 5am
55
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Station readings
62
60
CAMS model adj +28
25
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25
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25
27
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27

Air Quality Forecast (24h)

PM2.516.5 µg/m³ ×1.1 WHO
Moderate
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Nearby Monitoring Stations

65
Near South Side 2
1.4 km PM2.5: 18.6 µg/m³
64
Lower West Side 3
1.4 km PM2.5: 18.1 µg/m³
61
Armour Square 2
1.6 km PM2.5: 17.0 µg/m³
60
Near West Side 4
1.6 km PM2.5: 16.3 µg/m³
57
Near West Side 4
1.9 km PM2.5: 15.1 µg/m³
60
Douglas 1
2.0 km PM2.5: 16.2 µg/m³
59
Near South Side 1
2.1 km PM2.5: 15.9 µg/m³
60
Bridgeport 1
2.2 km PM2.5: 16.2 µg/m³

Nearby Cities

61 Near South Side 62 Chicago 60 Bridgeport 60 Douglas 60 Lower West Side 59 Chicago Loop 60 McKinley Park 58 Grand Boulevard 59 Near North Side

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T20:15 UTC.