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
9.94 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.39 μg/m³
0
55
155
255
425
605+
21.99 ppb
0
55
71
86
201
201+
0.36 ppb
0
36
76
186
605
1005+
8.68 ppb
0
54
101
361
1250
2050+
0.26 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
10.08μg/m³
PM2.5
12.92μg/m³
PM10
22.06ppb
O3
0.36ppb
SO2
8.57ppb
NO2
0.26ppm
CO
AQI 52
Moderate
10.43μg/m³
PM2.5
16.29μg/m³
PM10
22.25ppb
O3
0.36ppb
SO2
8.59ppb
NO2
0.26ppm
CO
AQI 52
Moderate
9.93μg/m³
PM2.5
11.36μg/m³
PM10
22.01ppb
O3
0.36ppb
SO2
8.66ppb
NO2
0.26ppm
CO
AQI 54
Moderate
10.52μg/m³
PM2.5
15.70μg/m³
PM10
21.77ppb
O3
0.37ppb
SO2
8.73ppb
NO2
0.26ppm
CO
AQI 52
Moderate
10.15μg/m³
PM2.5
13.98μg/m³
PM10
22.11ppb
O3
0.36ppb
SO2
8.48ppb
NO2
0.26ppm
CO
AQI 54
Moderate
10.79μg/m³
PM2.5
17.36μg/m³
PM10
21.53ppb
O3
0.38ppb
SO2
9.65ppb
NO2
0.26ppm
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 11:00:00 on 2026-07-09.
In the last 24 hours, the best air quality in Mission Viejo, California was observed at 10:00:00 on 2026-07-10.
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 9.939 μg/m3.
The PM10 concentration in Mission Viejo, California is 11.391 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Mission Viejo, California is 0.257 ppm.
Currently, Mission Viejo, California has a sulfur dioxide (SO2) concentration of 0.364 ppb.
The current ozone (O3) level in Mission Viejo, California at the moment is 21.99 ppm.
Nitrogen dioxide (NO2) level in Mission Viejo, California at the moment is 8.677 ppb.
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