Stay updated with real-time air quality in San Gabriel, 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)
33
Good
San Gabriel, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.12 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
24.97 μg/m³
0
55
155
255
425
605+
3.71 ppb
0
55
71
86
201
201+
0.56 ppb
0
36
76
186
605
1005+
7.09 ppb
0
54
101
361
1250
2050+
0.42 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
San Gabriel, California
San Gabriel, California
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AQI 33
Good
6.33μg/m³
PM2.5
25.73μg/m³
PM10
3.78ppb
O3
0.56ppb
SO2
7.19ppb
NO2
0.42ppm
CO
AQI 33
Good
6.12μg/m³
PM2.5
23.97μg/m³
PM10
3.92ppb
O3
0.56ppb
SO2
6.64ppb
NO2
0.41ppm
CO
AQI 27
Good
5.46μg/m³
PM2.5
23.19μg/m³
PM10
3.38ppb
O3
0.57ppb
SO2
7.09ppb
NO2
0.44ppm
CO
AQI 33
Good
6.04μg/m³
PM2.5
24.41μg/m³
PM10
3.74ppb
O3
0.56ppb
SO2
6.94ppb
NO2
0.42ppm
CO
AQI 33
Good
6.45μg/m³
PM2.5
27.68μg/m³
PM10
3.50ppb
O3
0.56ppb
SO2
7.92ppb
NO2
0.43ppm
CO
AQI 33
Good
5.63μg/m³
PM2.5
23.67μg/m³
PM10
3.46ppb
O3
0.57ppb
SO2
7.10ppb
NO2
0.43ppm
CO
Air quality data and pollutant measurements for California, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for San Gabriel, California is updated every hour.
The worst air quality in San Gabriel, California in the last 24 hours was observed at 11:00:00 on 2026-09-07.
In the last 24 hrs, the best air quality in San Gabriel, California was observed at 08:00:00 on 2026-09-06.
The current air quality in San Gabriel, California is 33, categorized as Good based on real-time data.
The most common pollutant in San Gabriel, California is PM2.5.
If the air quality in San Gabriel, California is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at San Gabriel, California is 6.12 μg/m3.
The current PM10 concentration at San Gabriel, California is 24.968 μg/m3.
The current carbon monoxide (CO) concentration at San Gabriel, California is 0.421 ppm.
The current sulfur dioxide (SO2) concentration at San Gabriel, California is 0.563 ppb.
The current ozone (O3) concentration at San Gabriel, California is 3.715 ppm.
The current nitrogen dioxide (NO2) concentration at San Gabriel, California is 7.092 ppb.
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