Worst air pollution Old City Knoxville - Knoxville, today and tomorrow
Today (9 August): Air quality in Old City Knoxville is fair. PM2.5, NO2, and PM1 are fair; AQI and O3 are medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 8:00 AM (O3: 42.1/100).
Tomorrow (10 August 2026): Air quality in Old City Knoxville is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 11:00 AM (O3: 36.4/100). 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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Knoxville's Old City air quality reflects the historic entertainment and arts district adjacent to downtown, with vehicle traffic on the surrounding Jackson Avenue and Central Street corridors contributing local sources. The Tennessee River valley's enclosure creates seasonal inversion episodes, while the neighbourhood's walkable arts character and the flat terrain allow reasonable dispersal and Old City generally maintains moderate Knoxville downtown readings throughout most of the year.
Today - 9 August | Pollution peaks at 08:00
AQI:
Medium
42.1/100
PM2.5 (fine particles):
Fair
24.5/100
PM10 (coarse particles):
Good
9.1/100
NO2 (nitrogen dioxide):
Fair
28.4/100
O3 (ozone):
Medium
42.1/100
SO2 (sulfur dioxide):
Good
11.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Fair
23.0/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 11:00
AQI:
Fair
36.4/100
PM2.5 (fine particles):
Fair
25.0/100
PM10 (coarse particles):
Good
9.4/100
NO2 (nitrogen dioxide):
Fair
22.0/100
O3 (ozone):
Fair
36.4/100
SO2 (sulfur dioxide):
Good
9.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Fair
20.4/100
Other Landmarks in Knoxville
Frequently Asked Questions
Is air quality bad in Old City Knoxville right now?
On 9 August 2026, overall air quality in Old City Knoxville is fair. NO2 is the main pollutant at 28.4/100. Pollution peaks around 8:00 AM (O3: 42.1/100).
Will air quality be worse tomorrow in Old City Knoxville?
On 10 August 2026, air quality conditions in Old City Knoxville will be similar to today, with AQI forecast at fair at 36.4/100. Pollution peaks around 11:00 AM (O3: 36.4/100).
When is air pollution at its worst in Old City Knoxville?
This neighborhood in Knoxville sees air quality shift through the year, as the cleanest conditions usually arrive in winter, once the humid summer ozone season has ended; by contrast, hot, humid summer days bring the highest ozone risk, amplified by natural emissions from the dense surrounding forests. Prescribed burns are more common in the cooler months and can add brief smoke episodes.
Are air quality levels in Old City Knoxville 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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