Worst air pollution Sequoyah Hills - Knoxville, today and tomorrow
Today (20 September): Air quality in Sequoyah Hills is fair. AQI and PM10 are fair; PM2.5, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (PM10: 21.5/100).
Tomorrow (21 September 2026): Air quality in Sequoyah Hills is fair. PM2.5 increases to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 10:00 AM (PM10: 24.5/100). 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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Knoxville's Sequoyah Hills air quality reflects the affluent West Knoxville residential neighbourhood adjacent to the Tennessee River, with vehicle traffic on the surrounding Cherokee Boulevard corridor contributing modest local sources. The Tennessee River provides limited ventilation and the neighbourhood's exceptional mature tree canopy provides natural filtration, while the elevated position and the riverside setting generally maintain Sequoyah Hills among Knoxville's more pleasant residential environments throughout most of the year.
Today - 20 September | Pollution peaks at 11:00
AQI:
Fair
21.5/100
PM2.5 (fine particles):
Good
17.0/100
PM10 (coarse particles):
Fair
21.5/100
NO2 (nitrogen dioxide):
Good
4.9/100
O3 (ozone):
Good
19.6/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
3.5/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 10:00
AQI:
Fair
24.5/100
PM2.5 (fine particles):
Fair
20.9/100
PM10 (coarse particles):
Fair
24.5/100
NO2 (nitrogen dioxide):
Good
8.5/100
O3 (ozone):
Fair
20.2/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.5/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
3.4/100
Other Landmarks in Knoxville
Frequently Asked Questions
Is air quality bad in Sequoyah Hills right now?
On 20 September 2026, overall air quality in Sequoyah Hills is fair. AQI is the main air quality indicator at 21.5/100. Pollution peaks around 11:00 AM (PM10: 21.5/100).
Will air quality be worse tomorrow in Sequoyah Hills?
On 21 September 2026, air quality conditions in Sequoyah Hills will be similar to today, with AQI forecast at fair at 24.5/100. Pollution peaks around 10:00 AM (PM10: 24.5/100).
When is air pollution at its worst in Sequoyah Hills?
Conditions at Sequoyah Hills vary noticeably across the seasons. In short, the cleanest conditions usually arrive in winter, once the humid summer ozone season has ended, whereas summer heat, humidity, and emissions from surrounding forests combine to drive ozone levels up. Prescribed burns are more common in the cooler months and can add brief smoke episodes.
Are air quality levels in Sequoyah Hills 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: 20 September 2026 at 20:27 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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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