Armour Square 1 Air Quality

Monitoring Station · Near South Side, United States
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
37 10pm
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41
34 1am
32
32
32 4am
32
31
31 7am
31
31
31 10am
31
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CAMS model adj +7
34
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27
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Air Quality Forecast (24h)

PM2.58.9 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

30
Near South Side 2
1.4 km PM2.5: 7.2 µg/m³
38
Lower West Side 3
1.4 km PM2.5: 9.1 µg/m³
36
Armour Square 2
1.6 km PM2.5: 8.6 µg/m³
32
Near West Side 4
1.6 km PM2.5: 7.6 µg/m³
46
Near West Side 4
1.9 km PM2.5: 11.1 µg/m³
33
Douglas 1
2.0 km PM2.5: 7.9 µg/m³
35
Near South Side 1
2.1 km PM2.5: 8.3 µg/m³
36
Bridgeport 1
2.2 km PM2.5: 8.6 µg/m³

Nearby Cities

34 Near South Side 38 Chicago 36 Bridgeport 34 Douglas 40 Lower West Side 38 Chicago Loop 40 McKinley Park 32 Grand Boulevard 40 Near North Side

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T01:03 UTC.