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)
54
Moderate
Rancho Mission Viejo, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.28 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
31.49 μg/m³
0
55
155
255
425
605+
48.08 ppb
0
55
71
86
201
201+
0.92 ppb
0
36
76
186
605
1005+
7.84 ppb
0
54
101
361
1250
2050+
0.29 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 56
Moderate
11.92μg/m³
PM2.5
34.38μg/m³
PM10
49.81ppb
O3
0.76ppb
SO2
8.25ppb
NO2
0.29ppm
CO
AQI 86
Moderate
14.59μg/m³
PM2.5
126.46μg/m³
PM10
59.86ppb
O3
0.76ppb
SO2
8.35ppb
NO2
0.28ppm
CO
AQI 56
Moderate
12.27μg/m³
PM2.5
34.91μg/m³
PM10
51.65ppb
O3
0.76ppb
SO2
8.47ppb
NO2
0.29ppm
CO
AQI 56
Moderate
12.30μg/m³
PM2.5
31.44μg/m³
PM10
50.11ppb
O3
0.75ppb
SO2
8.98ppb
NO2
0.29ppm
CO
AQI 64
Moderate
15.00μg/m³
PM2.5
81.38μg/m³
PM10
54.17ppb
O3
0.77ppb
SO2
9.16ppb
NO2
0.28ppm
CO
AQI 65
Moderate
14.14μg/m³
PM2.5
83.34μg/m³
PM10
50.77ppb
O3
0.76ppb
SO2
8.84ppb
NO2
0.28ppm
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 04:00:00, 2026-07-23.
The best air quality in Rancho Mission Viejo, California was observed at 01:00:00 on 2026-07-23.
The air quality in Rancho Mission Viejo, California right now is Moderate, with an AQI of 54.
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 11.276 μg/m3.
Rancho Mission Viejo, California currently has a PM10 concentration of 31.493 μg/m3.
The current carbon monoxide (CO) level in Rancho Mission Viejo, California is 0.293 ppm.
The current sulfur dioxide (SO2) concentration in Rancho Mission Viejo, California is 0.917 ppb.
Rancho Mission Viejo, California currently has an ozone (O3) concentration of 48.081 ppm.
The current level of nitrogen dioxide (NO2) in Rancho Mission Viejo, California is 7.845 ppb.
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