Stay updated with real-time air quality in Norco, 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)
58
Moderate
Norco, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
13.35 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.69 μg/m³
0
55
155
255
425
605+
21.55 ppb
0
55
71
86
201
201+
0.42 ppb
0
36
76
186
605
1005+
16.74 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Norco, California
Norco, California
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AQI 52
Moderate
10.42μg/m³
PM2.5
31.59μg/m³
PM10
19.92ppb
O3
0.47ppb
SO2
21.48ppb
NO2
0.27ppm
CO
AQI 60
Moderate
14.20μg/m³
PM2.5
32.35μg/m³
PM10
26.33ppb
O3
0.39ppb
SO2
14.52ppb
NO2
0.27ppm
CO
AQI 60
Moderate
14.20μg/m³
PM2.5
32.35μg/m³
PM10
26.33ppb
O3
0.39ppb
SO2
14.52ppb
NO2
0.27ppm
CO
AQI 67
Moderate
18.11μg/m³
PM2.5
32.01μg/m³
PM10
22.93ppb
O3
0.46ppb
SO2
8.28ppb
NO2
0.20ppm
CO
AQI 52
Moderate
9.74μg/m³
PM2.5
29.65μg/m³
PM10
20.21ppb
O3
0.46ppb
SO2
20.68ppb
NO2
0.28ppm
CO
AQI 66
Moderate
16.66μg/m³
PM2.5
27.29μg/m³
PM10
24.18ppb
O3
0.20ppb
SO2
11.12ppb
NO2
0.29ppm
CO
Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Norco, California is updated on an hourly basis.
The worst air quality in Norco, California was recorded at 12:00:00 on 2025-07-14.
The best air quality in Norco, California was recorded at 10:00:00 on 2025-07-14.
The real-time air quality index in Norco, California is 58, currently categorized as Moderate.
The most common pollutant in Norco, California is PM2.5.
If the air quality in Norco, California is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Norco, California at present are 13.347 μg/m3.
The current PM10 levels in Norco, California are 30.69 μg/m3.
The current carbon monoxide (CO) level in Norco, California is 0.268 ppm.
The current sulfur dioxide (SO2) levels in Norco, California are 0.418 ppb.
The current ozone (O3) levels at Norco, California is 21.546 ppm.
The current nitrogen dioxide (NO2) levels at Norco, California is 16.744 ppb.
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