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)
37
Good
Arroyo Grande, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
0.76 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
2.64 μg/m³
0
55
155
255
425
605+
39.86 ppb
0
55
71
86
201
201+
0.55 ppb
0
36
76
186
605
1005+
1.35 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Arroyo Grande, California
Arroyo Grande, California
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AQI 37
Good
0.74μg/m³
PM2.5
2.57μg/m³
PM10
39.83ppb
O3
0.55ppb
SO2
1.37ppb
NO2
0.13ppm
CO
AQI 38
Good
0.72μg/m³
PM2.5
3.05μg/m³
PM10
40.92ppb
O3
0.55ppb
SO2
0.74ppb
NO2
0.13ppm
CO
AQI 34
Good
2.06μg/m³
PM2.5
8.49μg/m³
PM10
37.23ppb
O3
0.61ppb
SO2
2.31ppb
NO2
0.20ppm
CO
AQI 36
Good
1.21μg/m³
PM2.5
3.13μg/m³
PM10
39.03ppb
O3
0.55ppb
SO2
1.21ppb
NO2
0.15ppm
CO
AQI 39
Good
1.92μg/m³
PM2.5
7.22μg/m³
PM10
41.63ppb
O3
0.63ppb
SO2
2.66ppb
NO2
0.20ppm
CO
AQI 35
Good
1.34μg/m³
PM2.5
3.00μg/m³
PM10
37.86ppb
O3
0.54ppb
SO2
1.30ppb
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 Arroyo Grande, California are available every hour.
Arroyo Grande, California experienced its worst air quality at 11:00:00, 2026-10-22.
The best air quality in Arroyo Grande, California was observed at 01:00:00 on 2026-10-22.
The air quality in Arroyo Grande, California right now is Good, with an AQI of 37.
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 0.761 μg/m3.
Arroyo Grande, California currently has a PM10 concentration of 2.636 μg/m3.
The current carbon monoxide (CO) level in Arroyo Grande, California is 0.132 ppm.
The current sulfur dioxide (SO2) concentration in Arroyo Grande, California is 0.553 ppb.
Arroyo Grande, California currently has an ozone (O3) concentration of 39.859 ppm.
The current level of nitrogen dioxide (NO2) in Arroyo Grande, California is 1.352 ppb.
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