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)
74
Moderate
South El Monte, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
16.33 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
72.92 μg/m³
0
55
155
255
425
605+
62.36 ppb
0
55
71
86
201
201+
0.88 ppb
0
36
76
186
605
1005+
9.88 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
South El Monte, California
South El Monte, California
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AQI 74
Moderate
16.40μg/m³
PM2.5
74.78μg/m³
PM10
61.64ppb
O3
0.88ppb
SO2
9.51ppb
NO2
0.27ppm
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 74
Moderate
15.75μg/m³
PM2.5
73.40μg/m³
PM10
61.93ppb
O3
0.87ppb
SO2
8.79ppb
NO2
0.27ppm
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
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
15.37μg/m³
PM2.5
72.69μg/m³
PM10
62.26ppb
O3
0.86ppb
SO2
8.18ppb
NO2
0.28ppm
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 2026-07-23.
In the last 24 hours, the best air quality in South El Monte, California was observed at 02:00:00 on 2026-07-23.
As of now, the AQI in South El Monte, California is 74, indicating Moderate 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 16.327 μg/m3.
The PM10 concentration in South El Monte, California is 72.92 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in South El Monte, California is 0.264 ppm.
Currently, South El Monte, California has a sulfur dioxide (SO2) concentration of 0.877 ppb.
The current ozone (O3) level in South El Monte, California at the moment is 62.358 ppm.
Nitrogen dioxide (NO2) level in South El Monte, California at the moment is 9.882 ppb.
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