Worst air pollution Herriman, today and tomorrow
Today (16 July): Air quality in Herriman is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 36.2/100).
Tomorrow (17 July 2026): Air quality in Herriman is fair. NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 7:00 AM (O3: 38.9/100). 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
Use our Strava plugin to check your own exposure.
Herriman's air quality faces Utah's severe winter inversion problem, with the Salt Lake Valley's enclosed Wasatch Front basin trapping vehicle emissions under persistent cold-air pools between the Wasatch Range and the Oquirrh Mountains. Vehicle emissions from I-15 and Bangerter Highway are the primary local sources in this rapidly growing Salt Lake County suburb, while summer air quality is generally excellent creating Utah's characteristic dramatic seasonal air quality contrast throughout the year.
Today - 16 July | Pollution peaks at 07:00
AQI:
Fair
36.2/100
PM2.5 (fine particles):
Good
14.0/100
PM10 (coarse particles):
Good
11.4/100
NO2 (nitrogen dioxide):
Good
19.9/100
O3 (ozone):
Fair
36.2/100
SO2 (sulfur dioxide):
Good
2.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.4/100
PM1 (ultrafine particles):
Good
7.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 07:00
AQI:
Fair
38.9/100
PM2.5 (fine particles):
Good
12.1/100
PM10 (coarse particles):
Good
6.6/100
NO2 (nitrogen dioxide):
Fair
21.3/100
O3 (ozone):
Fair
38.9/100
SO2 (sulfur dioxide):
Good
2.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.7/100
PM1 (ultrafine particles):
Good
7.1/100
Pollen forecast in Herriman
View pollen forecastFrequently Asked Questions
Is air quality bad in Herriman right now?
On 16 July 2026, overall air quality in Herriman is fair. AQI is the main air quality indicator at 36.2/100. Pollution peaks around 7:00 AM (O3: 36.2/100).
Will air quality be worse tomorrow in Herriman?
On 17 July 2026, air quality conditions in Herriman will be similar to today, with AQI forecast at fair at 38.9/100. Pollution peaks around 7:00 AM (O3: 38.9/100).
When is air pollution at its worst in Herriman?
Herriman's air quality has a clear seasonal rhythm. In short, the shoulder seasons of spring and fall typically offer the most stable, cleanest conditions, whereas summer brings regional wildfire smoke, while winter brings its own inversion-driven pollution episodes. Higher-elevation, more exposed locations generally avoid the worst of the valley inversion episodes.
Are air quality levels in Herriman 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.
Want to see air quality forecasts for other cities in United States?
Check air quality in other popular cities:
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