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)
42
Good
San Tan Valley, Arizona
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.93 μg/m³
0
55
155
255
425
605+
44.65 ppb
0
55
71
86
201
201+
0.41 ppb
0
36
76
186
605
1005+
12.51 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
San Tan Valley, Arizona
San Tan Valley, Arizona
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AQI 49
Good
8.85μg/m³
PM2.5
39.00μg/m³
PM10
46.55ppb
O3
0.51ppb
SO2
4.17ppb
NO2
0.14ppm
CO
AQI 49
Good
9.48μg/m³
PM2.5
42.32μg/m³
PM10
47.73ppb
O3
0.41ppb
SO2
2.00ppb
NO2
0.12ppm
CO
AQI 49
Good
9.49μg/m³
PM2.5
42.39μg/m³
PM10
45.45ppb
O3
0.48ppb
SO2
2.99ppb
NO2
0.13ppm
CO
AQI 49
Good
9.40μg/m³
PM2.5
42.08μg/m³
PM10
48.12ppb
O3
0.43ppb
SO2
2.18ppb
NO2
0.12ppm
CO
AQI 49
Good
9.44μg/m³
PM2.5
42.33μg/m³
PM10
44.46ppb
O3
0.52ppb
SO2
3.39ppb
NO2
0.13ppm
CO
AQI 42
Good
6.26μg/m³
PM2.5
27.47μg/m³
PM10
45.17ppb
O3
0.55ppb
SO2
3.71ppb
NO2
0.13ppm
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 12:00:00 on 2026-04-24.
In the last 24 hrs, the best air quality in San Tan Valley, Arizona was observed at 01:00:00 on 2026-04-23.
The current air quality in San Tan Valley, Arizona is 47, categorized as Good based on real-time data.
The most common pollutant in San Tan Valley, Arizona is O3.
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 6.475 μg/m3.
The current PM10 concentration at San Tan Valley, Arizona is 29.157 μg/m3.
The current carbon monoxide (CO) concentration at San Tan Valley, Arizona is 0.232 ppm.
The current sulfur dioxide (SO2) concentration at San Tan Valley, Arizona is 0.291 ppb.
The current ozone (O3) concentration at San Tan Valley, Arizona is 51.41 ppm.
The current nitrogen dioxide (NO2) concentration at San Tan Valley, Arizona is 8.892 ppb.
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