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)
56
Moderate
San Gabriel, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.84 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
49.07 μg/m³
0
55
155
255
425
605+
19.79 ppb
0
55
71
86
201
201+
0.85 ppb
0
36
76
186
605
1005+
12.90 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 56
Moderate
11.62μg/m³
PM2.5
47.61μg/m³
PM10
19.99ppb
O3
0.86ppb
SO2
12.64ppb
NO2
0.42ppm
CO
AQI 54
Moderate
11.13μg/m³
PM2.5
45.80μg/m³
PM10
21.29ppb
O3
0.85ppb
SO2
11.00ppb
NO2
0.42ppm
CO
AQI 58
Moderate
12.97μg/m³
PM2.5
55.59μg/m³
PM10
18.11ppb
O3
0.84ppb
SO2
15.05ppb
NO2
0.43ppm
CO
AQI 56
Moderate
11.74μg/m³
PM2.5
48.69μg/m³
PM10
20.06ppb
O3
0.85ppb
SO2
12.56ppb
NO2
0.42ppm
CO
AQI 58
Moderate
12.71μg/m³
PM2.5
53.37μg/m³
PM10
17.87ppb
O3
0.85ppb
SO2
15.32ppb
NO2
0.43ppm
CO
AQI 58
Moderate
12.68μg/m³
PM2.5
53.84μg/m³
PM10
18.49ppb
O3
0.84ppb
SO2
14.56ppb
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 04:00:00 on 2026-08-17.
In the last 24 hrs, the best air quality in San Gabriel, California was observed at 05:00:00 on 2026-08-16.
The current air quality in San Gabriel, California is 56, categorized as Moderate 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 11.837 μg/m3.
The current PM10 concentration at San Gabriel, California is 49.074 μg/m3.
The current carbon monoxide (CO) concentration at San Gabriel, California is 0.425 ppm.
The current sulfur dioxide (SO2) concentration at San Gabriel, California is 0.852 ppb.
The current ozone (O3) concentration at San Gabriel, California is 19.789 ppm.
The current nitrogen dioxide (NO2) concentration at San Gabriel, California is 12.901 ppb.
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