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)
22
Good
Los Osos, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.41 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.30 μg/m³
0
55
155
255
425
605+
19.58 ppb
0
55
71
86
201
201+
0.54 ppb
0
36
76
186
605
1005+
4.82 ppb
0
54
101
361
1250
2050+
0.20 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 56
Moderate
11.74μg/m³
PM2.5
35.43μg/m³
PM10
28.09ppb
O3
0.57ppb
SO2
2.04ppb
NO2
0.14ppm
CO
AQI 62
Moderate
15.33μg/m³
PM2.5
31.40μg/m³
PM10
36.60ppb
O3
0.90ppb
SO2
1.47ppb
NO2
0.14ppm
CO
AQI 34
Good
4.47μg/m³
PM2.5
16.43μg/m³
PM10
37.02ppb
O3
0.59ppb
SO2
0.93ppb
NO2
0.14ppm
CO
AQI 44
Good
7.71μg/m³
PM2.5
17.28μg/m³
PM10
30.46ppb
O3
0.94ppb
SO2
0.98ppb
NO2
0.12ppm
CO
AQI 38
Good
7.21μg/m³
PM2.5
16.54μg/m³
PM10
30.09ppb
O3
0.95ppb
SO2
0.95ppb
NO2
0.12ppm
CO
AQI 40
Good
5.33μg/m³
PM2.5
23.90μg/m³
PM10
42.55ppb
O3
0.60ppb
SO2
1.62ppb
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 12:00:00 on 2026-08-10.
In the last 24 hours, the best air quality in Los Osos, California was observed at 06:00:00 on 2026-08-09.
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 9.298 μg/m3.
The PM10 concentration in Los Osos, California is 31.854 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Los Osos, California is 0.168 ppm.
Currently, Los Osos, California has a sulfur dioxide (SO2) concentration of 0.661 ppb.
The current ozone (O3) level in Los Osos, California at the moment is 29.023 ppm.
Nitrogen dioxide (NO2) level in Los Osos, California at the moment is 1.828 ppb.
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