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)
16
Good
Los Osos, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.22 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.15 μg/m³
0
55
155
255
425
605+
17.46 ppb
0
55
71
86
201
201+
0.74 ppb
0
36
76
186
605
1005+
3.27 ppb
0
54
101
361
1250
2050+
0.31 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Los Osos, California
Los Osos, California
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AQI 16
Good
3.21μg/m³
PM2.5
14.82μg/m³
PM10
17.03ppb
O3
0.74ppb
SO2
3.34ppb
NO2
0.31ppm
CO
AQI 22
Good
4.07μg/m³
PM2.5
10.03μg/m³
PM10
23.53ppb
O3
0.73ppb
SO2
2.95ppb
NO2
0.31ppm
CO
AQI 18
Good
2.04μg/m³
PM2.5
5.26μg/m³
PM10
18.88ppb
O3
0.73ppb
SO2
2.62ppb
NO2
0.31ppm
CO
AQI 22
Good
4.17μg/m³
PM2.5
15.64μg/m³
PM10
23.20ppb
O3
0.74ppb
SO2
2.15ppb
NO2
0.28ppm
CO
AQI 22
Good
4.13μg/m³
PM2.5
15.06μg/m³
PM10
23.14ppb
O3
0.74ppb
SO2
2.10ppb
NO2
0.28ppm
CO
AQI 16
Good
2.59μg/m³
PM2.5
11.71μg/m³
PM10
11.70ppb
O3
0.72ppb
SO2
3.08ppb
NO2
0.31ppm
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 06:00:00 on 2026-01-23.
In the last 24 hours, the best air quality in Los Osos, California was observed at 08:00:00 on 2026-01-23.
As of now, the AQI in Los Osos, California is 16, indicating Good conditions.
Los Osos, California air has the highest levels of O3.
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 3.218 μg/m3.
The PM10 concentration in Los Osos, California is 14.148 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Los Osos, California is 0.309 ppm.
Currently, Los Osos, California has a sulfur dioxide (SO2) concentration of 0.739 ppb.
The current ozone (O3) level in Los Osos, California at the moment is 17.464 ppm.
Nitrogen dioxide (NO2) level in Los Osos, California at the moment is 3.273 ppb.
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