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)
44
Good
Granite Bay, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.91 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.84 μg/m³
0
55
155
255
425
605+
46.77 ppb
0
55
71
86
201
201+
0.63 ppb
0
36
76
186
605
1005+
1.70 ppb
0
54
101
361
1250
2050+
0.24 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 39
Good
2.57μg/m³
PM2.5
11.36μg/m³
PM10
42.41ppb
O3
0.64ppb
SO2
2.53ppb
NO2
0.25ppm
CO
AQI 46
Good
1.75μg/m³
PM2.5
7.27μg/m³
PM10
49.86ppb
O3
0.64ppb
SO2
1.06ppb
NO2
0.24ppm
CO
AQI 39
Good
2.69μg/m³
PM2.5
11.92μg/m³
PM10
41.85ppb
O3
0.64ppb
SO2
2.61ppb
NO2
0.25ppm
CO
AQI 44
Good
2.38μg/m³
PM2.5
10.20μg/m³
PM10
46.59ppb
O3
0.66ppb
SO2
1.93ppb
NO2
0.25ppm
CO
AQI 44
Good
2.03μg/m³
PM2.5
9.86μg/m³
PM10
48.29ppb
O3
0.68ppb
SO2
1.73ppb
NO2
0.24ppm
CO
AQI 41
Good
2.80μg/m³
PM2.5
12.12μg/m³
PM10
43.69ppb
O3
0.64ppb
SO2
3.01ppb
NO2
0.25ppm
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 10:00:00 on 2026-08-23.
The best air quality in Granite Bay, California was recorded at 01:00:00 on 2026-08-23.
The real-time air quality index in Granite Bay, California is 44, currently categorized as Good.
The most common pollutant in Granite Bay, California is O3.
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 1.907 μg/m3.
The current PM10 levels in Granite Bay, California are 8.837 μg/m3.
The current carbon monoxide (CO) level in Granite Bay, California is 0.244 ppm.
The current sulfur dioxide (SO2) levels in Granite Bay, California are 0.632 ppb.
The current ozone (O3) levels at Granite Bay, California is 46.775 ppm.
The current nitrogen dioxide (NO2) levels at Granite Bay, California is 1.702 ppb.
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