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)
77
Moderate
San Gabriel, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
15.59 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
71.36 μg/m³
0
55
155
255
425
605+
62.57 ppb
0
55
71
86
201
201+
0.95 ppb
0
36
76
186
605
1005+
9.86 ppb
0
54
101
361
1250
2050+
0.24 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 74
Moderate
15.50μg/m³
PM2.5
71.15μg/m³
PM10
62.45ppb
O3
0.96ppb
SO2
9.86ppb
NO2
0.24ppm
CO
AQI 80
Moderate
15.20μg/m³
PM2.5
70.49μg/m³
PM10
64.20ppb
O3
0.97ppb
SO2
9.89ppb
NO2
0.24ppm
CO
AQI 74
Moderate
16.07μg/m³
PM2.5
72.42μg/m³
PM10
61.91ppb
O3
0.91ppb
SO2
9.86ppb
NO2
0.26ppm
CO
AQI 77
Moderate
15.52μg/m³
PM2.5
71.20μg/m³
PM10
63.02ppb
O3
0.95ppb
SO2
9.87ppb
NO2
0.24ppm
CO
AQI 67
Moderate
16.12μg/m³
PM2.5
72.67μg/m³
PM10
59.93ppb
O3
0.93ppb
SO2
9.82ppb
NO2
0.25ppm
CO
AQI 74
Moderate
15.95μg/m³
PM2.5
72.16μg/m³
PM10
62.04ppb
O3
0.92ppb
SO2
9.86ppb
NO2
0.25ppm
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 09:00:00 on 2026-07-23.
In the last 24 hrs, the best air quality in San Gabriel, California was observed at 02:00:00 on 2026-07-23.
The current air quality in San Gabriel, California is 77, categorized as Moderate based on real-time data.
The most common pollutant in San Gabriel, California is O3.
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 15.589 μg/m3.
The current PM10 concentration at San Gabriel, California is 71.362 μg/m3.
The current carbon monoxide (CO) concentration at San Gabriel, California is 0.245 ppm.
The current sulfur dioxide (SO2) concentration at San Gabriel, California is 0.949 ppb.
The current ozone (O3) concentration at San Gabriel, California is 62.571 ppm.
The current nitrogen dioxide (NO2) concentration at San Gabriel, California is 9.863 ppb.
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