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)
54
Moderate
Arroyo Grande, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.71 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
40.42 μg/m³
0
55
155
255
425
605+
42.75 ppb
0
55
71
86
201
201+
0.53 ppb
0
36
76
186
605
1005+
1.25 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Arroyo Grande, California
Arroyo Grande, California
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AQI 38
Good
7.25μg/m³
PM2.5
25.82μg/m³
PM10
37.45ppb
O3
0.42ppb
SO2
1.90ppb
NO2
0.14ppm
CO
AQI 34
Good
4.68μg/m³
PM2.5
20.31μg/m³
PM10
37.06ppb
O3
0.41ppb
SO2
1.24ppb
NO2
0.14ppm
CO
AQI 54
Moderate
10.64μg/m³
PM2.5
21.04μg/m³
PM10
33.59ppb
O3
0.45ppb
SO2
2.46ppb
NO2
0.16ppm
CO
AQI 38
Good
7.46μg/m³
PM2.5
22.16μg/m³
PM10
37.27ppb
O3
0.41ppb
SO2
1.82ppb
NO2
0.14ppm
CO
AQI 38
Good
6.25μg/m³
PM2.5
25.02μg/m³
PM10
41.16ppb
O3
0.45ppb
SO2
1.92ppb
NO2
0.16ppm
CO
AQI 44
Good
8.24μg/m³
PM2.5
21.88μg/m³
PM10
36.55ppb
O3
0.41ppb
SO2
2.04ppb
NO2
0.14ppm
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 11:00:00, 2026-04-23.
The best air quality in Arroyo Grande, California was observed at 12:00:00 on 2026-04-24.
The air quality in Arroyo Grande, California right now is Good, with an AQI of 38.
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 7.095 μg/m3.
Arroyo Grande, California currently has a PM10 concentration of 25.922 μg/m3.
The current carbon monoxide (CO) level in Arroyo Grande, California is 0.142 ppm.
The current sulfur dioxide (SO2) concentration in Arroyo Grande, California is 0.418 ppb.
Arroyo Grande, California currently has an ozone (O3) concentration of 37.684 ppm.
The current level of nitrogen dioxide (NO2) in Arroyo Grande, California is 1.852 ppb.
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