Stay updated with real-time air quality in South El Monte, 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)
36
Good
South El Monte, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.42 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.49 μg/m³
0
55
155
255
425
605+
39.02 ppb
0
55
71
86
201
201+
0.24 ppb
0
36
76
186
605
1005+
2.85 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
South El Monte, California
South El Monte, California
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AQI 36
Good
2.37μg/m³
PM2.5
8.31μg/m³
PM10
39.02ppb
O3
0.23ppb
SO2
2.91ppb
NO2
0.21ppm
CO
AQI 36
Good
2.27μg/m³
PM2.5
7.58μg/m³
PM10
39.00ppb
O3
0.22ppb
SO2
2.96ppb
NO2
0.20ppm
CO
AQI 35
Good
2.39μg/m³
PM2.5
8.77μg/m³
PM10
38.29ppb
O3
0.24ppb
SO2
2.76ppb
NO2
0.22ppm
CO
AQI 36
Good
2.23μg/m³
PM2.5
7.31μg/m³
PM10
38.98ppb
O3
0.22ppb
SO2
3.02ppb
NO2
0.20ppm
CO
AQI 36
Good
2.09μg/m³
PM2.5
7.21μg/m³
PM10
39.05ppb
O3
0.21ppb
SO2
2.88ppb
NO2
0.20ppm
CO
AQI 35
Good
2.33μg/m³
PM2.5
8.78μg/m³
PM10
37.58ppb
O3
0.24ppb
SO2
2.61ppb
NO2
0.23ppm
CO
Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for South El Monte, California is updated every hour for accuracy.
In the past 24 hours, the air quality in South El Monte, California was at its worst at 09:00:00 on 2026-10-22.
In the last 24 hours, the best air quality in South El Monte, California was observed at 03:00:00 on 2026-10-22.
As of now, the AQI in South El Monte, California is 36, indicating Good conditions.
South El Monte, California air has the highest levels of O3.
Poor air quality in South El Monte, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in South El Monte, California are currently 2.423 μg/m3.
The PM10 concentration in South El Monte, California is 8.494 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in South El Monte, California is 0.212 ppm.
Currently, South El Monte, California has a sulfur dioxide (SO2) concentration of 0.237 ppb.
The current ozone (O3) level in South El Monte, California at the moment is 39.022 ppm.
Nitrogen dioxide (NO2) level in South El Monte, California at the moment is 2.852 ppb.
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