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)
36
Good
Aliso Viejo, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.57 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.58 μg/m³
0
55
155
255
425
605+
38.65 ppb
0
55
71
86
201
201+
0.23 ppb
0
36
76
186
605
1005+
1.99 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Aliso Viejo, California
Aliso Viejo, California
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AQI 32
Good
3.58μg/m³
PM2.5
16.66μg/m³
PM10
34.76ppb
O3
0.43ppb
SO2
2.07ppb
NO2
0.19ppm
CO
AQI 32
Good
3.58μg/m³
PM2.5
16.66μg/m³
PM10
34.76ppb
O3
0.43ppb
SO2
2.07ppb
NO2
0.19ppm
CO
AQI 32
Good
3.67μg/m³
PM2.5
16.68μg/m³
PM10
34.80ppb
O3
0.45ppb
SO2
1.97ppb
NO2
0.19ppm
CO
AQI 31
Good
3.63μg/m³
PM2.5
16.68μg/m³
PM10
34.40ppb
O3
0.43ppb
SO2
2.13ppb
NO2
0.20ppm
CO
AQI 32
Good
3.55μg/m³
PM2.5
16.66μg/m³
PM10
34.73ppb
O3
0.44ppb
SO2
1.76ppb
NO2
0.18ppm
CO
AQI 32
Good
3.59μg/m³
PM2.5
16.67μg/m³
PM10
34.82ppb
O3
0.45ppb
SO2
1.72ppb
NO2
0.18ppm
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 04:00:00 on 2025-09-10.
In the last 24 hours, the best air quality in Aliso Viejo, California was observed at 02:00:00 on 2025-09-10.
As of now, the AQI in Aliso Viejo, California is 32, indicating Good conditions.
Aliso Viejo, California air has the highest levels of O3.
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 3.606 μg/m3.
The PM10 concentration in Aliso Viejo, California is 16.674 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Aliso Viejo, California is 0.189 ppm.
Currently, Aliso Viejo, California has a sulfur dioxide (SO2) concentration of 0.438 ppb.
The current ozone (O3) level in Aliso Viejo, California at the moment is 34.761 ppm.
Nitrogen dioxide (NO2) level in Aliso Viejo, California at the moment is 2.011 ppb.
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