Stay updated with real-time air quality in Arroyo Grande, 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)
22
Good
Arroyo Grande, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.12 μg/m³
0
55
155
255
425
605+
16.44 ppb
0
55
71
86
201
201+
0.58 ppb
0
36
76
186
605
1005+
3.74 ppb
0
54
101
361
1250
2050+
0.47 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Arroyo Grande, California
Arroyo Grande, California
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AQI 22
Good
4.45μg/m³
PM2.5
10.08μg/m³
PM10
16.48ppb
O3
0.58ppb
SO2
3.82ppb
NO2
0.47ppm
CO
AQI 15
Good
1.39μg/m³
PM2.5
5.22μg/m³
PM10
16.03ppb
O3
0.59ppb
SO2
2.66ppb
NO2
0.48ppm
CO
AQI 38
Good
6.66μg/m³
PM2.5
7.99μg/m³
PM10
16.80ppb
O3
0.55ppb
SO2
4.71ppb
NO2
0.45ppm
CO
AQI 33
Good
5.68μg/m³
PM2.5
7.96μg/m³
PM10
17.11ppb
O3
0.57ppb
SO2
4.86ppb
NO2
0.48ppm
CO
AQI 16
Good
3.01μg/m³
PM2.5
9.27μg/m³
PM10
16.51ppb
O3
0.56ppb
SO2
4.79ppb
NO2
0.43ppm
CO
AQI 38
Good
6.77μg/m³
PM2.5
8.43μg/m³
PM10
17.36ppb
O3
0.56ppb
SO2
5.75ppb
NO2
0.48ppm
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 Arroyo Grande, California are available every hour.
Arroyo Grande, California experienced its worst air quality at 10:00:00, 2026-01-22.
The best air quality in Arroyo Grande, California was observed at 04:00:00 on 2026-01-23.
The air quality in Arroyo Grande, California right now is Good, with an AQI of 22.
In Arroyo Grande, California, PM2.5 is the most frequently found pollutant.
When air quality in Arroyo Grande, California is compromised, staying indoors and wearing a mask can reduce health risks.
Arroyo Grande, California currently has a PM2.5 concentration of 4.255 μg/m3.
Arroyo Grande, California currently has a PM10 concentration of 10.12 μg/m3.
The current carbon monoxide (CO) level in Arroyo Grande, California is 0.47 ppm.
The current sulfur dioxide (SO2) concentration in Arroyo Grande, California is 0.584 ppb.
Arroyo Grande, California currently has an ozone (O3) concentration of 16.437 ppm.
The current level of nitrogen dioxide (NO2) in Arroyo Grande, California is 3.743 ppb.
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