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
1.90 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.94 μg/m³
0
55
155
255
425
605+
32.22 ppb
0
55
71
86
201
201+
0.54 ppb
0
36
76
186
605
1005+
6.30 ppb
0
54
101
361
1250
2050+
0.28 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 44
Good
8.37μg/m³
PM2.5
18.02μg/m³
PM10
32.80ppb
O3
0.36ppb
SO2
8.60ppb
NO2
0.67ppm
CO
AQI 49
Good
8.54μg/m³
PM2.5
9.55μg/m³
PM10
19.42ppb
O3
0.37ppb
SO2
6.23ppb
NO2
0.51ppm
CO
AQI 58
Moderate
12.53μg/m³
PM2.5
15.34μg/m³
PM10
10.24ppb
O3
0.36ppb
SO2
9.54ppb
NO2
0.50ppm
CO
AQI 38
Good
6.74μg/m³
PM2.5
19.65μg/m³
PM10
19.27ppb
O3
0.65ppb
SO2
5.84ppb
NO2
0.49ppm
CO
AQI 38
Good
6.73μg/m³
PM2.5
20.22μg/m³
PM10
19.28ppb
O3
0.67ppb
SO2
5.79ppb
NO2
0.49ppm
CO
AQI 44
Good
7.82μg/m³
PM2.5
32.15μg/m³
PM10
8.67ppb
O3
0.37ppb
SO2
8.89ppb
NO2
0.51ppm
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 2025-12-07.
In the last 24 hours, the best air quality in Los Osos, California was observed at 12:00:00 on 2025-12-07.
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 1.901 μg/m3.
The PM10 concentration in Los Osos, California is 11.937 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Los Osos, California is 0.282 ppm.
Currently, Los Osos, California has a sulfur dioxide (SO2) concentration of 0.542 ppb.
The current ozone (O3) level in Los Osos, California at the moment is 32.22 ppm.
Nitrogen dioxide (NO2) level in Los Osos, California at the moment is 6.3 ppb.
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