Stay updated with real-time air quality in 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)
52
Moderate
Mission Viejo, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.63 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.28 μg/m³
0
55
155
255
425
605+
40.95 ppb
0
55
71
86
201
201+
0.41 ppb
0
36
76
186
605
1005+
3.97 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Mission Viejo, California
Mission Viejo, California
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AQI 52
Moderate
9.63μg/m³
PM2.5
21.13μg/m³
PM10
40.85ppb
O3
0.41ppb
SO2
4.03ppb
NO2
0.23ppm
CO
AQI 52
Moderate
9.72μg/m³
PM2.5
23.01μg/m³
PM10
40.41ppb
O3
0.41ppb
SO2
4.10ppb
NO2
0.23ppm
CO
AQI 52
Moderate
9.61μg/m³
PM2.5
20.21μg/m³
PM10
40.97ppb
O3
0.41ppb
SO2
3.96ppb
NO2
0.22ppm
CO
AQI 52
Moderate
9.96μg/m³
PM2.5
22.94μg/m³
PM10
40.40ppb
O3
0.41ppb
SO2
4.09ppb
NO2
0.23ppm
CO
AQI 52
Moderate
9.65μg/m³
PM2.5
21.81μg/m³
PM10
40.77ppb
O3
0.41ppb
SO2
4.10ppb
NO2
0.23ppm
CO
AQI 52
Moderate
10.22μg/m³
PM2.5
22.64μg/m³
PM10
40.19ppb
O3
0.40ppb
SO2
4.70ppb
NO2
0.23ppm
CO
Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Mission Viejo, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Mission Viejo, California was at its worst at 07:00:00 on 2026-06-08.
In the last 24 hours, the best air quality in Mission Viejo, California was observed at 02:00:00 on 2026-06-08.
As of now, the AQI in Mission Viejo, California is 52, indicating Moderate conditions.
Mission Viejo, California air has the highest levels of PM2.5.
Poor air quality in Mission Viejo, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Mission Viejo, California are currently 9.628 μg/m3.
The PM10 concentration in Mission Viejo, California is 20.276 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Mission Viejo, California is 0.224 ppm.
Currently, Mission Viejo, California has a sulfur dioxide (SO2) concentration of 0.411 ppb.
The current ozone (O3) level in Mission Viejo, California at the moment is 40.952 ppm.
Nitrogen dioxide (NO2) level in Mission Viejo, California at the moment is 3.968 ppb.
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