Concord, Contra Costa, California Air Quality
Monitoring Station
· Pleasant Hill, United States
57
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
47
8pm
57
42
42
11pm
42
35
35
2am
35
35
35
5am
35
35
35
8am
35
35
—
11am
—
—
—
2pm
—
—
—
5pm
—
—
Station readings
47
57
CAMS model
adj +8
27
34
34
34
34
27
27
27
27
27
27
27
27
27
27
Air Quality Forecast (24h)
PM2.515.0 µg/m³
✓ WHO
Moderate
Nearby Monitoring Stations
8
Concord, Contra Costa, California
12
Martinez 3
12
Berkeley-Martinez 1
10
Skyline HS
10
Thornhill ES
10
Montera MS/Joaquin Miller ES
11
Montclair ES
19
Lawrence Hall of Science
Nearby Cities
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-05-29T23:40 UTC.