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)
44
Good
Mission Viejo, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.60 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.06 μg/m³
0
55
155
255
425
605+
1.04 ppb
0
55
71
86
201
201+
0.81 ppb
0
36
76
186
605
1005+
11.41 ppb
0
54
101
361
1250
2050+
0.41 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 44
Good
7.56μg/m³
PM2.5
16.34μg/m³
PM10
1.15ppb
O3
0.80ppb
SO2
11.42ppb
NO2
0.41ppm
CO
AQI 52
Moderate
10.24μg/m³
PM2.5
24.07μg/m³
PM10
1.72ppb
O3
0.80ppb
SO2
11.51ppb
NO2
0.41ppm
CO
AQI 44
Good
7.59μg/m³
PM2.5
16.07μg/m³
PM10
1.03ppb
O3
0.80ppb
SO2
11.39ppb
NO2
0.41ppm
CO
AQI 44
Good
7.55μg/m³
PM2.5
16.50μg/m³
PM10
1.45ppb
O3
0.81ppb
SO2
11.59ppb
NO2
0.41ppm
CO
AQI 44
Good
7.56μg/m³
PM2.5
16.59μg/m³
PM10
1.24ppb
O3
0.80ppb
SO2
11.45ppb
NO2
0.41ppm
CO
AQI 44
Good
7.83μg/m³
PM2.5
16.57μg/m³
PM10
1.59ppb
O3
0.82ppb
SO2
11.82ppb
NO2
0.41ppm
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 01:00:00 on 2026-09-06.
In the last 24 hours, the best air quality in Mission Viejo, California was observed at 03:00:00 on 2026-09-07.
As of now, the AQI in Mission Viejo, California is 44, indicating Good 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 7.601 μg/m3.
The PM10 concentration in Mission Viejo, California is 16.063 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Mission Viejo, California is 0.408 ppm.
Currently, Mission Viejo, California has a sulfur dioxide (SO2) concentration of 0.805 ppb.
The current ozone (O3) level in Mission Viejo, California at the moment is 1.044 ppm.
Nitrogen dioxide (NO2) level in Mission Viejo, California at the moment is 11.406 ppb.
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