Stay updated with real-time air quality in West Covina, 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)
54
Moderate
West Covina, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.82 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
38.87 μg/m³
0
55
155
255
425
605+
14.17 ppb
0
55
71
86
201
201+
0.42 ppb
0
36
76
186
605
1005+
10.12 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
West Covina, California
West Covina, California
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AQI 49
Good
8.92μg/m³
PM2.5
33.53μg/m³
PM10
14.80ppb
O3
0.49ppb
SO2
7.99ppb
NO2
0.17ppm
CO
AQI 38
Good
6.84μg/m³
PM2.5
21.71μg/m³
PM10
19.45ppb
O3
0.50ppb
SO2
4.64ppb
NO2
0.17ppm
CO
AQI 49
Good
8.92μg/m³
PM2.5
33.53μg/m³
PM10
14.80ppb
O3
0.49ppb
SO2
7.99ppb
NO2
0.17ppm
CO
AQI 44
Good
8.29μg/m³
PM2.5
27.38μg/m³
PM10
13.86ppb
O3
0.52ppb
SO2
8.91ppb
NO2
0.18ppm
CO
AQI 44
Good
8.21μg/m³
PM2.5
26.41μg/m³
PM10
13.67ppb
O3
0.53ppb
SO2
9.03ppb
NO2
0.18ppm
CO
AQI 49
Good
8.89μg/m³
PM2.5
32.26μg/m³
PM10
14.76ppb
O3
0.49ppb
SO2
7.37ppb
NO2
0.19ppm
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 West Covina, California is updated every hour for accuracy.
In the past 24 hours, the air quality in West Covina, California was at its worst at 11:00:00 on 2026-08-11.
In the last 24 hours, the best air quality in West Covina, California was observed at 03:00:00 on 2026-08-12.
As of now, the AQI in West Covina, California is 49, indicating Good conditions.
West Covina, California air has the highest levels of PM2.5.
Poor air quality in West Covina, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in West Covina, California are currently 8.749 μg/m3.
The PM10 concentration in West Covina, California is 31.985 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in West Covina, California is 0.176 ppm.
Currently, West Covina, California has a sulfur dioxide (SO2) concentration of 0.499 ppb.
The current ozone (O3) level in West Covina, California at the moment is 14.614 ppm.
Nitrogen dioxide (NO2) level in West Covina, California at the moment is 8.182 ppb.
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