Stay updated with real-time air quality in Rancho Mission Viejo, 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)
64
Moderate
Rancho Mission Viejo, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
16.45 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
25.52 μg/m³
0
55
155
255
425
605+
12.00 ppb
0
55
71
86
201
201+
0.49 ppb
0
36
76
186
605
1005+
17.82 ppb
0
54
101
361
1250
2050+
0.71 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Rancho Mission Viejo, California
Rancho Mission Viejo, California
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AQI 64
Moderate
16.45μg/m³
PM2.5
25.52μg/m³
PM10
12.00ppb
O3
0.49ppb
SO2
17.82ppb
NO2
0.71ppm
CO
AQI 67
Moderate
18.26μg/m³
PM2.5
39.54μg/m³
PM10
14.29ppb
O3
0.51ppb
SO2
21.08ppb
NO2
0.68ppm
CO
AQI 64
Moderate
16.23μg/m³
PM2.5
25.93μg/m³
PM10
11.73ppb
O3
0.49ppb
SO2
17.83ppb
NO2
0.70ppm
CO
AQI 64
Moderate
16.45μg/m³
PM2.5
25.07μg/m³
PM10
12.88ppb
O3
0.50ppb
SO2
17.41ppb
NO2
0.69ppm
CO
AQI 64
Moderate
15.83μg/m³
PM2.5
68.07μg/m³
PM10
14.05ppb
O3
0.50ppb
SO2
25.97ppb
NO2
0.69ppm
CO
AQI 66
Moderate
16.82μg/m³
PM2.5
53.33μg/m³
PM10
14.70ppb
O3
0.51ppb
SO2
22.51ppb
NO2
0.69ppm
CO
The air quality data for California, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Rancho Mission Viejo, California are available every hour.
Rancho Mission Viejo, California experienced its worst air quality at 12:00:00, 2026-01-23.
The best air quality in Rancho Mission Viejo, California was observed at 09:00:00 on 2026-01-23.
The air quality in Rancho Mission Viejo, California right now is Moderate, with an AQI of 64.
In Rancho Mission Viejo, California, PM2.5 is the most frequently found pollutant.
When air quality in Rancho Mission Viejo, California is compromised, staying indoors and wearing a mask can reduce health risks.
Rancho Mission Viejo, California currently has a PM2.5 concentration of 16.454 μg/m3.
Rancho Mission Viejo, California currently has a PM10 concentration of 25.516 μg/m3.
The current carbon monoxide (CO) level in Rancho Mission Viejo, California is 0.708 ppm.
The current sulfur dioxide (SO2) concentration in Rancho Mission Viejo, California is 0.486 ppb.
Rancho Mission Viejo, California currently has an ozone (O3) concentration of 11.996 ppm.
The current level of nitrogen dioxide (NO2) in Rancho Mission Viejo, California is 17.82 ppb.
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