Concord, Contra Costa, California Air Quality

Monitoring Station · Pleasant Hill, United States
89
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
54 6pm
61
89
61 9pm
61
61
61 12am
61
61
61 3am
61
61
61 6am
61
61
9am
12pm
3pm
Station readings
89
CAMS model adj +27
27
34
34
34
34
34
34
34
34
34
34
34
34
34
34
PM2.530.2 µg/m³ ×2.0 WHO
Moderate
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Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T21:53 UTC.