Worst air pollution West Valley City, today and tomorrow
Today (16 July): Air quality in West Valley City is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (O3: 37.6/100).
Tomorrow (17 July 2026): Air quality in West Valley City is medium. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 10:00 AM (O3: 40.4/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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West Valley City's air quality faces Utah Valley's severe winter inversion problem, with the Salt Lake Valley's enclosed Wasatch Front basin trapping vehicle and industrial emissions under persistent cold-air pools. Vehicle emissions from I-215 and Bangerter Highway are the primary local sources alongside the nearby Hunter and Kennecott industrial corridor, while summer air quality is generally excellent with clean Rocky Mountain airflows and the extreme seasonal contrast between summer clarity and winter inversion pollution is one of Utah's most dramatic urban air quality patterns.
Today - 16 July | Pollution peaks at 10:00
AQI:
Fair
37.6/100
PM2.5 (fine particles):
Good
10.8/100
PM10 (coarse particles):
Good
10.9/100
NO2 (nitrogen dioxide):
Good
6.8/100
O3 (ozone):
Fair
37.6/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.7/100
PM1 (ultrafine particles):
Good
6.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 10:00
AQI:
Medium
40.4/100
PM2.5 (fine particles):
Good
7.3/100
PM10 (coarse particles):
Good
3.6/100
NO2 (nitrogen dioxide):
Good
10.6/100
O3 (ozone):
Medium
40.4/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.3/100
PM1 (ultrafine particles):
Good
4.7/100
Pollen forecast in West Valley City
View pollen forecastFrequently Asked Questions
Is air quality bad in West Valley City right now?
On 16 July 2026, overall air quality in West Valley City is fair. AQI is the main air quality indicator at 37.6/100. Pollution peaks around 10:00 AM (O3: 37.6/100).
Will air quality be worse tomorrow in West Valley City?
On 17 July 2026, air quality conditions in West Valley City will be better than today, with AQI forecast at medium at 40.4/100. Pollution peaks around 10:00 AM (O3: 40.4/100).
When is air pollution at its worst in West Valley City?
Air quality in West Valley City shifts across the year. Typically, the shoulder seasons of spring and fall typically offer the most stable, cleanest conditions, while winter temperature inversions can trap cold air and pollution in valleys and basins for days at a time. Higher-elevation, more exposed locations generally avoid the worst of the valley inversion episodes.
Are air quality levels in West Valley City 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