O'Hare 1 Air Quality

Monitoring Station · Park Ridge, United States
51
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
56 5pm
55
51
52 8pm
52
52
51 11pm
51
54
54 2am
54
54
52 5am
52
61
8am
11am
2pm
Station readings
56
55
51
CAMS model adj +27
25
25
25
25
25
25
24
24
27
27
27
27
25
25
34
PM2.512.3 µg/m³ ✓ WHO
Moderate
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Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T20:52 UTC.