Colfax-City Hall, Placer, California Air Quality

Monitoring Station · Granite Bay, United States
40
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
34 3am
40
80
80 6am
80
80
80 9am
80
80
80 12pm
80
80
80 3pm
80
80
— 6pm
—
—
— 9pm
—
—
— 12am
—
—
Station readings
34
40
CAMS model adj +26
27
34
54
54
54
54
54
54
54
54
54
54
54
54
54

Air Quality Forecast (24h)

PM2.59.6 µg/m³ ✓ WHO
Good
View city history →

Nearby Monitoring Stations

50
Auburn-11645 Atwood Road, Placer, California
22.2 km PM2.5: 12.0 µg/m³
46
Auburn-11645 Atwood Road, Placer, California
22.2 km PM2.5: 11.0 µg/m³

Nearby Cities

63 Granite Bay 63 Rocklin 54 El Dorado Hills 52 Cameron Park 63 Folsom 52 Linda 63 Citrus Heights 63 Orangevale 63 Antelope

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T06:25 UTC.