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)
21
Good
Arroyo Grande, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.52 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.21 μg/m³
0
55
155
255
425
605+
23.27 ppb
0
55
71
86
201
201+
0.57 ppb
0
36
76
186
605
1005+
2.77 ppb
0
54
101
361
1250
2050+
0.28 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 21
Good
2.44μg/m³
PM2.5
8.11μg/m³
PM10
22.57ppb
O3
0.57ppb
SO2
2.92ppb
NO2
0.28ppm
CO
AQI 32
Good
2.51μg/m³
PM2.5
6.79μg/m³
PM10
35.23ppb
O3
0.57ppb
SO2
0.72ppb
NO2
0.28ppm
CO
AQI 15
Good
0.98μg/m³
PM2.5
4.35μg/m³
PM10
15.84ppb
O3
0.55ppb
SO2
5.14ppb
NO2
0.28ppm
CO
AQI 16
Good
2.47μg/m³
PM2.5
7.12μg/m³
PM10
17.21ppb
O3
0.58ppb
SO2
3.93ppb
NO2
0.37ppm
CO
AQI 30
Good
1.90μg/m³
PM2.5
11.94μg/m³
PM10
32.22ppb
O3
0.54ppb
SO2
6.30ppb
NO2
0.28ppm
CO
AQI 11
Good
2.32μg/m³
PM2.5
7.04μg/m³
PM10
11.69ppb
O3
0.58ppb
SO2
5.37ppb
NO2
0.44ppm
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 02:00:00, 2025-12-07.
The best air quality in Arroyo Grande, California was observed at 11:00:00 on 2025-12-07.
The air quality in Arroyo Grande, California right now is Good, with an AQI of 21.
In Arroyo Grande, California, O3 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 2.525 μg/m3.
Arroyo Grande, California currently has a PM10 concentration of 8.212 μg/m3.
The current carbon monoxide (CO) level in Arroyo Grande, California is 0.28 ppm.
The current sulfur dioxide (SO2) concentration in Arroyo Grande, California is 0.569 ppb.
Arroyo Grande, California currently has an ozone (O3) concentration of 23.266 ppm.
The current level of nitrogen dioxide (NO2) in Arroyo Grande, California is 2.775 ppb.
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