Worst air pollution Downtown Nephi - Nephi, today and tomorrow
Today (9 August): Air quality in Downtown Nephi is fair. AQI, PM2.5, NO2, and O3 are fair; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (O3: 35.7/100).
Tomorrow (10 August 2026): Air quality in Downtown Nephi is fair. PM2.5 decreases to good; all other pollutants stay as today. Pollution peaks around 6:00 AM (O3: 34.8/100). 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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As the city's small downtown in the Salt Lake Valley chain, Downtown Nephi experiences air quality conditions similar to the rest of Nephi, following the same broader regional pattern. Local traffic and immediate surroundings can shift day-to-day readings slightly from the citywide figure.
Today - 9 August | Pollution peaks at 10:00
AQI:
Fair
35.7/100
PM2.5 (fine particles):
Fair
20.6/100
PM10 (coarse particles):
Good
7.7/100
NO2 (nitrogen dioxide):
Fair
35.3/100
O3 (ozone):
Fair
35.7/100
SO2 (sulfur dioxide):
Good
10.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
15.5/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 06:00
AQI:
Fair
34.8/100
PM2.5 (fine particles):
Good
17.3/100
PM10 (coarse particles):
Good
6.8/100
NO2 (nitrogen dioxide):
Fair
25.6/100
O3 (ozone):
Fair
34.8/100
SO2 (sulfur dioxide):
Good
8.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
13.7/100
Other Landmarks in Nephi
Frequently Asked Questions
Is air quality bad in Downtown Nephi right now?
On 9 August 2026, overall air quality in Downtown Nephi is fair. AQI is the main air quality indicator at 35.7/100. Pollution peaks around 10:00 AM (O3: 35.7/100).
Will air quality be worse tomorrow in Downtown Nephi?
On 10 August 2026, air quality conditions in Downtown Nephi will be similar to today, with AQI forecast at fair at 34.8/100. Pollution peaks around 6:00 AM (O3: 34.8/100).
When is air pollution at its worst in Downtown Nephi?
Downtown Nephi follows Nephi's typical seasonal air quality pattern — spring and autumn generally bring the cleanest, most stable air, whereas summer brings regional wildfire smoke, while winter brings its own inversion-driven pollution episodes. Wind exposure varies a lot by terrain here, so nearby locations can see quite different smoke and inversion impacts.
Are air quality levels in Downtown Nephi 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 10 August 2026 at 02:34 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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