Stay updated with real-time air quality in San Tan Valley, Arizona 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)
38
Good
San Tan Valley, Arizona
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.57 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.06 μg/m³
0
55
155
255
425
605+
31.98 ppb
0
55
71
86
201
201+
0.58 ppb
0
36
76
186
605
1005+
31.05 ppb
0
54
101
361
1250
2050+
1.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
San Tan Valley, Arizona
San Tan Valley, Arizona
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AQI 44
Good
8.49μg/m³
PM2.5
36.58μg/m³
PM10
30.06ppb
O3
0.48ppb
SO2
30.70ppb
NO2
1.00ppm
CO
AQI 56
Moderate
11.51μg/m³
PM2.5
27.22μg/m³
PM10
33.73ppb
O3
0.28ppb
SO2
13.68ppb
NO2
1.03ppm
CO
AQI 49
Good
9.35μg/m³
PM2.5
30.23μg/m³
PM10
32.04ppb
O3
0.38ppb
SO2
29.40ppb
NO2
1.01ppm
CO
AQI 49
Good
8.63μg/m³
PM2.5
34.79μg/m³
PM10
22.73ppb
O3
0.36ppb
SO2
30.54ppb
NO2
1.02ppm
CO
AQI 54
Moderate
10.56μg/m³
PM2.5
38.47μg/m³
PM10
30.18ppb
O3
0.40ppb
SO2
31.60ppb
NO2
1.01ppm
CO
AQI 56
Moderate
12.10μg/m³
PM2.5
38.34μg/m³
PM10
19.54ppb
O3
0.65ppb
SO2
30.34ppb
NO2
0.90ppm
CO
Air quality data and pollutant measurements for Arizona, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for San Tan Valley, Arizona is updated every hour.
The worst air quality in San Tan Valley, Arizona in the last 24 hours was observed at 04:00:00 on 2025-12-07.
In the last 24 hrs, the best air quality in San Tan Valley, Arizona was observed at 03:00:00 on 2025-12-06.
The current air quality in San Tan Valley, Arizona is 38, categorized as Good based on real-time data.
The most common pollutant in San Tan Valley, Arizona is PM2.5.
If the air quality in San Tan Valley, Arizona is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at San Tan Valley, Arizona is 6.574 μg/m3.
The current PM10 concentration at San Tan Valley, Arizona is 29.061 μg/m3.
The current carbon monoxide (CO) concentration at San Tan Valley, Arizona is 1.168 ppm.
The current sulfur dioxide (SO2) concentration at San Tan Valley, Arizona is 0.581 ppb.
The current ozone (O3) concentration at San Tan Valley, Arizona is 31.978 ppm.
The current nitrogen dioxide (NO2) concentration at San Tan Valley, Arizona is 31.049 ppb.
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