Stay updated with real-time air quality in Atascadero, 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)
11
Good
Atascadero, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.35 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.23 μg/m³
0
55
155
255
425
605+
6.50 ppb
0
55
71
86
201
201+
0.46 ppb
0
36
76
186
605
1005+
2.20 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Atascadero, California
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AQI 16
Good
2.78μg/m³
PM2.5
12.38μg/m³
PM10
15.91ppb
O3
0.46ppb
SO2
4.69ppb
NO2
0.18ppm
CO
AQI 30
Good
4.76μg/m³
PM2.5
24.30μg/m³
PM10
31.85ppb
O3
0.46ppb
SO2
4.24ppb
NO2
0.18ppm
CO
AQI 44
Good
8.12μg/m³
PM2.5
20.00μg/m³
PM10
25.03ppb
O3
0.46ppb
SO2
4.00ppb
NO2
0.18ppm
CO
AQI 28
Good
4.92μg/m³
PM2.5
23.52μg/m³
PM10
30.30ppb
O3
0.46ppb
SO2
4.25ppb
NO2
0.18ppm
CO
AQI 33
Good
5.77μg/m³
PM2.5
21.30μg/m³
PM10
29.34ppb
O3
0.46ppb
SO2
2.11ppb
NO2
0.16ppm
CO
AQI 33
Good
5.61μg/m³
PM2.5
21.05μg/m³
PM10
29.53ppb
O3
0.46ppb
SO2
1.99ppb
NO2
0.16ppm
CO
The air quality data for California, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Atascadero, California are available every hour.
Atascadero, California experienced its worst air quality at 12:00:00, 2026-03-10.
The best air quality in Atascadero, California was observed at 02:00:00 on 2026-03-09.
The air quality in Atascadero, California right now is Good, with an AQI of 11.
In Atascadero, California, PM2.5 is the most frequently found pollutant.
When air quality in Atascadero, California is compromised, staying indoors and wearing a mask can reduce health risks.
Atascadero, California currently has a PM2.5 concentration of 2.355 μg/m3.
Atascadero, California currently has a PM10 concentration of 10.235 μg/m3.
The current carbon monoxide (CO) level in Atascadero, California is 0.155 ppm.
The current sulfur dioxide (SO2) concentration in Atascadero, California is 0.46 ppb.
Atascadero, California currently has an ozone (O3) concentration of 6.496 ppm.
The current level of nitrogen dioxide (NO2) in Atascadero, California is 2.203 ppb.
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