Colfax-City Hall, Placer, California Air Quality

Monitoring Station · Granite Bay, United States
10
Good
Air quality is satisfactory. Enjoy outdoor activities.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
10 2am
33
33
35 5am
35
35
35 8am
35
35
33 11am
33
35
35 2pm
35
33
— 5pm
—
—
— 8pm
—
—
— 11pm
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CAMS model adj +8
25
25
25
27
27
27
27
27
27
25
25
27
27
27
25

Air Quality Forecast (24h)

PM2.52.4 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

25
Auburn-11645 Atwood Road, Placer, California
22.2 km PM2.5: 6.0 µg/m³
30
Auburn-11645 Atwood Road, Placer, California
22.2 km PM2.5: 7.2 µg/m³

Nearby Cities

18 Granite Bay 18 Rocklin 18 El Dorado Hills 18 Cameron Park 18 Folsom 16 Linda 20 Citrus Heights 20 Orangevale 21 Antelope

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T05:24 UTC.