Real-time air quality index in Orange, California today
Stay updated with real-time air quality in Orange, 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)
79
Moderate
Orange, California
Last updated: ... (Local time)
Common air pollutants in Orange, California
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
24.24 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
46.83 μg/m³
0
55
155
255
425
605+
Ozone (O3)
3.74 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.66 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
20.86 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
1.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Orange, California
Orange, California
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Orange, California air quality map: Real-time AQI near you
Air quality in nearby cities
Santa Ana, California
AQI 79
Moderate
23.72μg/m³
PM2.5
42.36μg/m³
PM10
3.74ppb
O3
0.66ppb
SO2
20.71ppb
NO2
1.27ppm
CO
Tustin, California
AQI 77
Moderate
22.60μg/m³
PM2.5
40.38μg/m³
PM10
4.57ppb
O3
0.66ppb
SO2
20.62ppb
NO2
1.25ppm
CO
North Tustin, California
AQI 79
Moderate
23.96μg/m³
PM2.5
43.86μg/m³
PM10
5.91ppb
O3
0.63ppb
SO2
21.30ppb
NO2
1.17ppm
CO
Anaheim, California
AQI 81
Moderate
24.55μg/m³
PM2.5
42.66μg/m³
PM10
3.30ppb
O3
0.66ppb
SO2
21.52ppb
NO2
1.28ppm
CO
Garden Grove, California
AQI 81
Moderate
24.68μg/m³
PM2.5
43.42μg/m³
PM10
3.25ppb
O3
0.66ppb
SO2
20.49ppb
NO2
1.28ppm
CO
Placentia, California
AQI 81
Moderate
25.12μg/m³
PM2.5
58.15μg/m³
PM10
3.30ppb
O3
0.67ppb
SO2
19.98ppb
NO2
1.26ppm
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 Orange, California updated?
Air quality data for Orange, California is updated on an hourly basis.
When did Orange, California experience the worst air quality in the last 24 hours?
The worst air quality in Orange, California was recorded at 06:00:00 on 2026-01-22.
When did Orange, California have its best air quality in the last 24 hours?
The best air quality in Orange, California was recorded at 09:00:00 on 2026-01-23.
What is the real-time air quality index for Orange, California?
The real-time air quality index in Orange, California is 79, currently categorized as Moderate.
Which pollutant is found most often in Orange, California?
The most common pollutant in Orange, California is PM2.5.
What can I do if the air quality in Orange, California is poor?
If the air quality in Orange, California is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Orange, California?
The measured PM2.5 levels in Orange, California at present are 24.243 μg/m3.
What are the current PM10 levels at Orange, California?
The current PM10 levels in Orange, California are 46.832 μg/m3.
What are the current carbon monoxide (CO) levels at Orange, California?
The current carbon monoxide (CO) level in Orange, California is 1.261 ppm.
What are the current sulfur dioxide (SO2) levels at Orange, California?
The current sulfur dioxide (SO2) levels in Orange, California are 0.658 ppb.
What are the current ozone (O3) levels at Orange, California?
The current ozone (O3) levels at Orange, California is 3.741 ppm.
What are the current nitrogen dioxide (NO2) levels at Orange, California?
The current nitrogen dioxide (NO2) levels at Orange, California is 20.855 ppb.
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