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)
43
Good
Granite Bay, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.08 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.58 μg/m³
0
55
155
255
425
605+
45.84 ppb
0
55
71
86
201
201+
0.63 ppb
0
36
76
186
605
1005+
2.45 ppb
0
54
101
361
1250
2050+
0.19 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 45
Good
3.37μg/m³
PM2.5
12.02μg/m³
PM10
49.33ppb
O3
0.56ppb
SO2
2.25ppb
NO2
0.20ppm
CO
AQI 45
Good
2.15μg/m³
PM2.5
9.17μg/m³
PM10
48.99ppb
O3
0.57ppb
SO2
1.05ppb
NO2
0.19ppm
CO
AQI 46
Good
3.54μg/m³
PM2.5
12.11μg/m³
PM10
49.63ppb
O3
0.56ppb
SO2
2.36ppb
NO2
0.20ppm
CO
AQI 45
Good
2.86μg/m³
PM2.5
11.06μg/m³
PM10
48.74ppb
O3
0.57ppb
SO2
1.72ppb
NO2
0.19ppm
CO
AQI 46
Good
2.69μg/m³
PM2.5
10.97μg/m³
PM10
50.21ppb
O3
0.57ppb
SO2
1.55ppb
NO2
0.19ppm
CO
AQI 44
Good
2.97μg/m³
PM2.5
10.85μg/m³
PM10
48.02ppb
O3
0.57ppb
SO2
2.42ppb
NO2
0.20ppm
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 2026-06-24.
The best air quality in Granite Bay, California was recorded at 03:00:00 on 2026-06-23.
The real-time air quality index in Granite Bay, California is 46, 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 2.591 μg/m3.
The current PM10 levels in Granite Bay, California are 10.324 μg/m3.
The current carbon monoxide (CO) level in Granite Bay, California is 0.194 ppm.
The current sulfur dioxide (SO2) levels in Granite Bay, California are 0.569 ppb.
The current ozone (O3) levels at Granite Bay, California is 49.839 ppm.
The current nitrogen dioxide (NO2) levels at Granite Bay, California is 1.553 ppb.
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