Stay updated with real-time air quality in Los Osos, 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)
49
Good
Los Osos, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.85 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
31.70 μg/m³
0
55
155
255
425
605+
46.39 ppb
0
55
71
86
201
201+
0.56 ppb
0
36
76
186
605
1005+
2.34 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Los Osos, California
Los Osos, California
Scroll To Air Quality MapLoading...
AQI 44
Good
6.48μg/m³
PM2.5
36.55μg/m³
PM10
46.93ppb
O3
0.48ppb
SO2
1.63ppb
NO2
0.14ppm
CO
AQI 60
Moderate
13.65μg/m³
PM2.5
21.46μg/m³
PM10
38.99ppb
O3
0.49ppb
SO2
1.70ppb
NO2
0.14ppm
CO
AQI 41
Good
6.51μg/m³
PM2.5
13.34μg/m³
PM10
43.87ppb
O3
0.50ppb
SO2
1.70ppb
NO2
0.14ppm
CO
AQI 49
Good
9.38μg/m³
PM2.5
30.23μg/m³
PM10
39.61ppb
O3
0.46ppb
SO2
1.29ppb
NO2
0.14ppm
CO
AQI 49
Good
9.26μg/m³
PM2.5
30.80μg/m³
PM10
39.58ppb
O3
0.46ppb
SO2
1.26ppb
NO2
0.14ppm
CO
AQI 35
Good
3.59μg/m³
PM2.5
15.24μg/m³
PM10
38.47ppb
O3
0.50ppb
SO2
1.70ppb
NO2
0.14ppm
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 Los Osos, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Los Osos, California was at its worst at 08:00:00 on 2026-04-24.
In the last 24 hours, the best air quality in Los Osos, California was observed at 12:00:00 on 2026-04-24.
As of now, the AQI in Los Osos, California is 49, indicating Good conditions.
Los Osos, California air has the highest levels of PM2.5.
Poor air quality in Los Osos, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Los Osos, California are currently 8.853 μg/m3.
The PM10 concentration in Los Osos, California is 31.697 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Los Osos, California is 0.154 ppm.
Currently, Los Osos, California has a sulfur dioxide (SO2) concentration of 0.56 ppb.
The current ozone (O3) level in Los Osos, California at the moment is 46.387 ppm.
Nitrogen dioxide (NO2) level in Los Osos, California at the moment is 2.336 ppb.
All Rights Reserved © Ambee Inc. 2025