Armour Square 1 Air Quality

Monitoring Station · Near South Side, United States
38
Good
Air quality is satisfactory. Enjoy outdoor activities.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
38 12am
54
54
42 3am
42
42
42 6am
42
42
42 9am
42
42
42 12pm
13
13
— 3pm
—
—
— 6pm
—
—
— 9pm
—
—
CAMS model adj -12
54
66
66
54
54
54
54
54
54
54
54
54
54
25
25

Air Quality Forecast (24h)

PM2.59.0 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

34
Near South Side 2
1.4 km PM2.5: 8.2 µg/m³
39
Armour Square 2
1.6 km PM2.5: 9.4 µg/m³
39
Near West Side 4
1.6 km PM2.5: 9.3 µg/m³
37
Near West Side 4
1.9 km PM2.5: 8.8 µg/m³
38
Douglas 1
2.0 km PM2.5: 9.2 µg/m³
38
Near South Side 1
2.1 km PM2.5: 9.1 µg/m³
37
Bridgeport 1
2.2 km PM2.5: 8.9 µg/m³
43
Lower West Side 2
2.8 km PM2.5: 10.3 µg/m³

Nearby Cities

29 Near South Side 31 Chicago 32 Bridgeport 32 Douglas 32 Lower West Side 26 Chicago Loop 34 McKinley Park 34 Grand Boulevard 23 Near North Side

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T03:07 UTC.