Stay updated with real-time air quality in Pomona, 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)
41
Good
Pomona, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.38 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.51 μg/m³
0
55
155
255
425
605+
44.27 ppb
0
55
71
86
201
201+
0.73 ppb
0
36
76
186
605
1005+
7.40 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Pomona, California
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AQI 37
Good
4.77μg/m³
PM2.5
25.72μg/m³
PM10
40.05ppb
O3
0.66ppb
SO2
6.74ppb
NO2
0.23ppm
CO
AQI 37
Good
4.86μg/m³
PM2.5
26.87μg/m³
PM10
40.09ppb
O3
0.69ppb
SO2
9.51ppb
NO2
0.22ppm
CO
AQI 37
Good
6.17μg/m³
PM2.5
25.90μg/m³
PM10
40.30ppb
O3
0.77ppb
SO2
9.68ppb
NO2
0.22ppm
CO
AQI 37
Good
6.39μg/m³
PM2.5
26.36μg/m³
PM10
40.48ppb
O3
0.77ppb
SO2
10.71ppb
NO2
0.22ppm
CO
AQI 37
Good
5.33μg/m³
PM2.5
26.15μg/m³
PM10
40.36ppb
O3
0.67ppb
SO2
10.67ppb
NO2
0.24ppm
CO
AQI 40
Good
4.11μg/m³
PM2.5
22.18μg/m³
PM10
43.06ppb
O3
0.61ppb
SO2
3.35ppb
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 Pomona, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Pomona, California was at its worst at 05:00:00 on 2026-03-09.
In the last 24 hours, the best air quality in Pomona, California was observed at 02:00:00 on 2026-03-09.
As of now, the AQI in Pomona, California is 41, indicating Good conditions.
Pomona, California air has the highest levels of O3.
Poor air quality in Pomona, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Pomona, California are currently 5.383 μg/m3.
The PM10 concentration in Pomona, California is 26.507 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Pomona, California is 0.241 ppm.
Currently, Pomona, California has a sulfur dioxide (SO2) concentration of 0.726 ppb.
The current ozone (O3) level in Pomona, California at the moment is 44.274 ppm.
Nitrogen dioxide (NO2) level in Pomona, California at the moment is 7.4 ppb.
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