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)
38
Good
Los Osos, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.23 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
4.77 μg/m³
0
55
155
255
425
605+
40.80 ppb
0
55
71
86
201
201+
0.61 ppb
0
36
76
186
605
1005+
2.23 ppb
0
54
101
361
1250
2050+
0.18 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 38
Good
1.26μg/m³
PM2.5
4.79μg/m³
PM10
40.98ppb
O3
0.62ppb
SO2
2.29ppb
NO2
0.18ppm
CO
AQI 32
Good
3.74μg/m³
PM2.5
29.25μg/m³
PM10
34.61ppb
O3
0.60ppb
SO2
2.13ppb
NO2
0.18ppm
CO
AQI 31
Good
0.91μg/m³
PM2.5
4.02μg/m³
PM10
34.25ppb
O3
0.62ppb
SO2
1.04ppb
NO2
0.18ppm
CO
AQI 39
Good
0.57μg/m³
PM2.5
4.86μg/m³
PM10
41.58ppb
O3
0.57ppb
SO2
1.58ppb
NO2
0.13ppm
CO
AQI 39
Good
0.56μg/m³
PM2.5
4.70μg/m³
PM10
41.59ppb
O3
0.57ppb
SO2
1.56ppb
NO2
0.13ppm
CO
AQI 39
Good
0.92μg/m³
PM2.5
4.07μg/m³
PM10
42.49ppb
O3
0.62ppb
SO2
2.37ppb
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 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 11:00:00 on 2026-10-22.
In the last 24 hours, the best air quality in Los Osos, California was observed at 02:00:00 on 2026-10-22.
As of now, the AQI in Los Osos, California is 38, 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 1.226 μg/m3.
The PM10 concentration in Los Osos, California is 4.771 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Los Osos, California is 0.182 ppm.
Currently, Los Osos, California has a sulfur dioxide (SO2) concentration of 0.615 ppb.
The current ozone (O3) level in Los Osos, California at the moment is 40.795 ppm.
Nitrogen dioxide (NO2) level in Los Osos, California at the moment is 2.233 ppb.
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