Stay updated with real-time air quality in Granite Bay, California featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
52
Moderate
Granite Bay, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.94 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
38.12 μg/m³
0
55
155
255
425
605+
36.51 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
2.35 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Granite Bay, California
Granite Bay, California
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AQI 54
Moderate
10.88μg/m³
PM2.5
31.04μg/m³
PM10
29.73ppb
O3
0.46ppb
SO2
2.90ppb
NO2
0.22ppm
CO
AQI 49
Good
9.05μg/m³
PM2.5
40.71μg/m³
PM10
33.96ppb
O3
0.47ppb
SO2
1.07ppb
NO2
0.23ppm
CO
AQI 54
Moderate
11.14μg/m³
PM2.5
27.33μg/m³
PM10
29.12ppb
O3
0.46ppb
SO2
2.99ppb
NO2
0.22ppm
CO
AQI 52
Moderate
10.01μg/m³
PM2.5
36.02μg/m³
PM10
31.93ppb
O3
0.47ppb
SO2
2.13ppb
NO2
0.22ppm
CO
AQI 49
Good
9.31μg/m³
PM2.5
37.43μg/m³
PM10
34.97ppb
O3
0.46ppb
SO2
1.94ppb
NO2
0.22ppm
CO
AQI 54
Moderate
11.24μg/m³
PM2.5
37.09μg/m³
PM10
30.39ppb
O3
0.47ppb
SO2
3.33ppb
NO2
0.22ppm
CO
Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Granite Bay, California is updated on an hourly basis.
The worst air quality in Granite Bay, California was recorded at 01:00:00 on 2026-08-10.
The best air quality in Granite Bay, California was recorded at 07:00:00 on 2026-08-10.
The real-time air quality index in Granite Bay, California is 52, currently categorized as Moderate.
The most common pollutant in Granite Bay, California is PM2.5.
If the air quality in Granite Bay, California is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Granite Bay, California at present are 9.68 μg/m3.
The current PM10 levels in Granite Bay, California are 38.155 μg/m3.
The current carbon monoxide (CO) level in Granite Bay, California is 0.223 ppm.
The current sulfur dioxide (SO2) levels in Granite Bay, California are 0.463 ppb.
The current ozone (O3) levels at Granite Bay, California is 33.439 ppm.
The current nitrogen dioxide (NO2) levels at Granite Bay, California is 1.897 ppb.
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