Live air quality index in Norco, California today
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)
33
Good
Norco, California
Last updated: ... (Local time)
Major air pollutants in Norco, California
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
6.43 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
22.56 μg/m³
0
55
155
255
425
605+
Ozone (O3)
31.03 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.27 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
11.20 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Norco, California
Norco, California
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Norco, California air quality map: Real-time AQI near you
Air quality in nearby cities
Eastvale, California
AQI 38
Good
6.66μg/m³
PM2.5
24.96μg/m³
PM10
29.93ppb
O3
0.28ppb
SO2
14.31ppb
NO2
0.18ppm
CO
Corona, California
AQI 33
Good
5.92μg/m³
PM2.5
24.64μg/m³
PM10
30.33ppb
O3
0.28ppb
SO2
12.09ppb
NO2
0.17ppm
CO
Home Gardens, California
AQI 33
Good
5.92μg/m³
PM2.5
24.64μg/m³
PM10
30.33ppb
O3
0.28ppb
SO2
12.09ppb
NO2
0.17ppm
CO
Jurupa Valley, California
AQI 38
Good
6.60μg/m³
PM2.5
19.18μg/m³
PM10
31.95ppb
O3
0.28ppb
SO2
6.26ppb
NO2
0.10ppm
CO
Chino, California
AQI 33
Good
6.18μg/m³
PM2.5
24.87μg/m³
PM10
28.75ppb
O3
0.28ppb
SO2
14.86ppb
NO2
0.19ppm
CO
Riverside, California
AQI 30
Good
3.82μg/m³
PM2.5
17.74μg/m³
PM10
32.07ppb
O3
0.15ppb
SO2
6.96ppb
NO2
0.18ppm
CO
How accurate is California, USA air quality data?
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
Frequently asked questions
How frequently is the air quality data for Norco, California updated?
Air quality data for Norco, California is updated on an hourly basis.
When did Norco, California experience the worst air quality in the last 24 hours?
The worst air quality in Norco, California was recorded at 10:00:00 on 2025-06-05.
When did Norco, California have its best air quality in the last 24 hours?
The best air quality in Norco, California was recorded at 07:00:00 on 2025-06-06.
What is the real-time air quality index for Norco, California?
The real-time air quality index in Norco, California is 33, currently categorized as Good.
Which pollutant is found most often in Norco, California?
The most common pollutant in Norco, California is PM2.5.
What can I do if the air quality in Norco, California is poor?
If the air quality in Norco, California is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Norco, California?
The measured PM2.5 levels in Norco, California at present are 6.431 μg/m3.
What are the current PM10 levels at Norco, California?
The current PM10 levels in Norco, California are 22.559 μg/m3.
What are the current carbon monoxide (CO) levels at Norco, California?
The current carbon monoxide (CO) level in Norco, California is 0.164 ppm.
What are the current sulfur dioxide (SO2) levels at Norco, California?
The current sulfur dioxide (SO2) levels in Norco, California are 0.265 ppb.
What are the current ozone (O3) levels at Norco, California?
The current ozone (O3) levels at Norco, California is 31.027 ppm.
What are the current nitrogen dioxide (NO2) levels at Norco, California?
The current nitrogen dioxide (NO2) levels at Norco, California is 11.2 ppb.
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