Stay updated with real-time air quality in Aliso 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
Aliso Viejo, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.56 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.15 μg/m³
0
55
155
255
425
605+
24.77 ppb
0
55
71
86
201
201+
1.38 ppb
0
36
76
186
605
1005+
12.88 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Aliso Viejo, California
Aliso Viejo, California
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AQI 44
Good
8.36μg/m³
PM2.5
34.24μg/m³
PM10
24.47ppb
O3
1.34ppb
SO2
13.33ppb
NO2
0.22ppm
CO
AQI 44
Good
8.36μg/m³
PM2.5
34.24μg/m³
PM10
24.47ppb
O3
1.34ppb
SO2
13.33ppb
NO2
0.22ppm
CO
AQI 44
Good
8.14μg/m³
PM2.5
42.84μg/m³
PM10
24.78ppb
O3
1.40ppb
SO2
13.00ppb
NO2
0.21ppm
CO
AQI 44
Good
8.43μg/m³
PM2.5
44.91μg/m³
PM10
25.82ppb
O3
1.31ppb
SO2
12.66ppb
NO2
0.23ppm
CO
AQI 44
Good
7.53μg/m³
PM2.5
29.95μg/m³
PM10
24.39ppb
O3
1.44ppb
SO2
13.83ppb
NO2
0.21ppm
CO
AQI 44
Good
8.46μg/m³
PM2.5
31.42μg/m³
PM10
24.52ppb
O3
1.46ppb
SO2
13.89ppb
NO2
0.21ppm
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 Aliso Viejo, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Aliso Viejo, California was at its worst at 08:00:00 on 2025-07-13.
In the last 24 hours, the best air quality in Aliso Viejo, California was observed at 08:00:00 on 2025-07-14.
As of now, the AQI in Aliso Viejo, California is 44, indicating Good conditions.
Aliso Viejo, California air has the highest levels of PM2.5.
Poor air quality in Aliso Viejo, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Aliso Viejo, California are currently 7.557 μg/m3.
The PM10 concentration in Aliso Viejo, California is 17.152 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Aliso Viejo, California is 0.213 ppm.
Currently, Aliso Viejo, California has a sulfur dioxide (SO2) concentration of 1.38 ppb.
The current ozone (O3) level in Aliso Viejo, California at the moment is 24.774 ppm.
Nitrogen dioxide (NO2) level in Aliso Viejo, California at the moment is 12.88 ppb.
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