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)
56
Moderate
Mission Viejo, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.51 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.26 μg/m³
0
55
155
255
425
605+
47.20 ppb
0
55
71
86
201
201+
0.91 ppb
0
36
76
186
605
1005+
8.46 ppb
0
54
101
361
1250
2050+
0.29 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 56
Moderate
12.31μg/m³
PM2.5
33.06μg/m³
PM10
50.09ppb
O3
0.76ppb
SO2
8.86ppb
NO2
0.29ppm
CO
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 56
Moderate
12.30μg/m³
PM2.5
31.39μg/m³
PM10
50.02ppb
O3
0.75ppb
SO2
8.99ppb
NO2
0.29ppm
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
12.33μg/m³
PM2.5
34.45μg/m³
PM10
50.06ppb
O3
0.76ppb
SO2
8.80ppb
NO2
0.29ppm
CO
AQI 56
Moderate
12.44μg/m³
PM2.5
36.35μg/m³
PM10
53.72ppb
O3
0.75ppb
SO2
9.54ppb
NO2
0.29ppm
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 09:00:00 on 2026-07-23.
In the last 24 hours, the best air quality in Mission Viejo, California was observed at 03:00:00 on 2026-07-23.
As of now, the AQI in Mission Viejo, California is 56, 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 12.305 μg/m3.
The PM10 concentration in Mission Viejo, California is 31.436 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Mission Viejo, California is 0.289 ppm.
Currently, Mission Viejo, California has a sulfur dioxide (SO2) concentration of 0.754 ppb.
The current ozone (O3) level in Mission Viejo, California at the moment is 50.108 ppm.
Nitrogen dioxide (NO2) level in Mission Viejo, California at the moment is 8.983 ppb.
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