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)
30
Good
Los Osos, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.56 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.13 μg/m³
0
55
155
255
425
605+
31.79 ppb
0
55
71
86
201
201+
0.62 ppb
0
36
76
186
605
1005+
4.87 ppb
0
54
101
361
1250
2050+
0.37 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Los Osos, California
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AQI 31
Good
2.99μg/m³
PM2.5
12.85μg/m³
PM10
33.89ppb
O3
0.76ppb
SO2
4.49ppb
NO2
0.29ppm
CO
AQI 27
Good
4.90μg/m³
PM2.5
26.74μg/m³
PM10
29.42ppb
O3
0.80ppb
SO2
2.99ppb
NO2
0.29ppm
CO
AQI 11
Good
2.30μg/m³
PM2.5
6.14μg/m³
PM10
11.41ppb
O3
0.75ppb
SO2
5.96ppb
NO2
0.29ppm
CO
AQI 32
Good
3.22μg/m³
PM2.5
13.24μg/m³
PM10
35.38ppb
O3
0.68ppb
SO2
1.40ppb
NO2
0.30ppm
CO
AQI 33
Good
3.24μg/m³
PM2.5
13.28μg/m³
PM10
35.59ppb
O3
0.68ppb
SO2
1.38ppb
NO2
0.30ppm
CO
AQI 17
Good
1.94μg/m³
PM2.5
8.94μg/m³
PM10
18.00ppb
O3
0.79ppb
SO2
5.28ppb
NO2
0.29ppm
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 2026-02-13.
In the last 24 hours, the best air quality in Los Osos, California was observed at 04:00:00 on 2026-02-12.
As of now, the AQI in Los Osos, California is 30, 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 2.563 μg/m3.
The PM10 concentration in Los Osos, California is 12.131 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Los Osos, California is 0.366 ppm.
Currently, Los Osos, California has a sulfur dioxide (SO2) concentration of 0.621 ppb.
The current ozone (O3) level in Los Osos, California at the moment is 31.794 ppm.
Nitrogen dioxide (NO2) level in Los Osos, California at the moment is 4.873 ppb.
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