Armour Square 1 Air Quality

Monitoring Station · Near South Side, United States
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
20 1am
17
22
22 4am
22
21
21 7am
21
21
21 10am
21
21
22 1pm
22
22
4pm
7pm
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Station readings
20
17
CAMS model adj -3
27
25
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25
PM2.54.1 µg/m³ ✓ WHO
Good
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Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T04:24 UTC.