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)
44
Good
Atascadero, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.59 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.27 μg/m³
0
55
155
255
425
605+
42.05 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
1.22 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Very high
Atascadero, California
Atascadero, California
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AQI 39
Good
3.94μg/m³
PM2.5
16.32μg/m³
PM10
42.12ppb
O3
0.51ppb
SO2
1.83ppb
NO2
0.14ppm
CO
AQI 49
Good
9.05μg/m³
PM2.5
36.63μg/m³
PM10
44.98ppb
O3
0.50ppb
SO2
1.78ppb
NO2
0.14ppm
CO
AQI 58
Moderate
12.56μg/m³
PM2.5
21.92μg/m³
PM10
44.13ppb
O3
0.51ppb
SO2
1.85ppb
NO2
0.14ppm
CO
AQI 49
Good
9.19μg/m³
PM2.5
35.21μg/m³
PM10
44.77ppb
O3
0.50ppb
SO2
1.76ppb
NO2
0.14ppm
CO
AQI 54
Moderate
11.18μg/m³
PM2.5
43.09μg/m³
PM10
44.19ppb
O3
0.47ppb
SO2
1.13ppb
NO2
0.12ppm
CO
AQI 54
Moderate
11.26μg/m³
PM2.5
44.63μg/m³
PM10
44.22ppb
O3
0.48ppb
SO2
1.09ppb
NO2
0.12ppm
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 10:00:00, 2026-04-24.
The best air quality in Atascadero, California was observed at 03:00:00 on 2026-04-24.
The air quality in Atascadero, California right now is Good, with an AQI of 44.
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 7.588 μg/m3.
Atascadero, California currently has a PM10 concentration of 17.267 μg/m3.
The current carbon monoxide (CO) level in Atascadero, California is 0.137 ppm.
The current sulfur dioxide (SO2) concentration in Atascadero, California is 0.508 ppb.
Atascadero, California currently has an ozone (O3) concentration of 42.046 ppm.
The current level of nitrogen dioxide (NO2) in Atascadero, California is 1.222 ppb.
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