Worst air pollution San Tan Valley, today and tomorrow
Today (15 July): Air quality in San Tan Valley is fair. AQI, PM10, and O3 are fair; PM2.5, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 28.3/100).
Tomorrow (16 July 2026): Air quality in San Tan Valley is fair. PM10 decreases to good; all other pollutants stay as today. Pollution peaks around 8:00 AM (O3: 28.9/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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San Tan Valley's air quality reflects the Phoenix metropolitan area's southeastern basin extension, with vehicle emissions from US-60 and SR-24 the primary local source in this rapidly growing Pinal County suburban development. Windblown Sonoran Desert dust from surrounding open desert areas contributes PM10 during haboob events, while summer ozone from the vast Phoenix metropolitan traffic and intense desert heat are the primary warm-season concerns.
Today - 15 July | Pollution peaks at 07:00
AQI:
Fair
28.3/100
PM2.5 (fine particles):
Good
14.2/100
PM10 (coarse particles):
Fair
23.6/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
28.3/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
2.5/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 08:00
AQI:
Fair
28.9/100
PM2.5 (fine particles):
Good
10.4/100
PM10 (coarse particles):
Good
18.4/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
28.9/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
2.3/100
Pollen forecast in San Tan Valley
View pollen forecastFrequently Asked Questions
Is air quality bad in San Tan Valley right now?
On 15 July 2026, overall air quality in San Tan Valley is fair. AQI is the main air quality indicator at 28.3/100. Pollution peaks around 7:00 AM (O3: 28.3/100).
Will air quality be worse tomorrow in San Tan Valley?
On 16 July 2026, air quality conditions in San Tan Valley will be similar to today, with AQI forecast at fair at 28.9/100. Pollution peaks around 8:00 AM (O3: 28.9/100).
When is air pollution at its worst in San Tan Valley?
Seasonal changes shape air quality across San Tan Valley. Typically, the cooler winter months typically bring the cleanest air of the year, while intense summer heat combines with occasional dust events to create the year's worst episodes. Monsoon storms in July and August can either clear the air with rain or stir up dust ahead of the storm front.
Are air quality levels in San Tan Valley based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app