SmogRank / World / North America / United States / Tennessee

Most polluted cities in Tennessee, United States

13 measured cities, last 30 days; 0 above the WHO 24-hour guideline. Worst: Bartlett at 9.2 µg/m³, #753 in the world.

Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.

Mississippi: 7 measured citiesAlabama: 8 measured citiesGeorgia: 16 measured citiesSouth Carolina: 5 measured citiesNorth Carolina: 17 measured citiesVirginia: 14 measured citiesMissouri: 10 measured citiesIllinois: 37 measured citiesKentucky: 17 measured citiesArkansas: 4 measured citiesTennessee: 13 measured cities#13 Kingsport: 5.2 µg/m³#12 Harriman: 5.3 µg/m³#11 Cookeville: 5.9 µg/m³#10 Columbia: 6.3 µg/m³#9 Maryville: 6.5 µg/m³#7 Athens: 6.7 µg/m³#8 Dyersburg: 6.7 µg/m³#6 Hendersonville: 6.9 µg/m³#5 Knoxville: 7.6 µg/m³#4 Jackson: 7.8 µg/m³#3 Nashville: 7.9 µg/m³#2 Chattanooga: 8.9 µg/m³#1 Bartlett: 9.2 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
← Bartlett 0% 0.75%0
Every measured city in Tennessee, United States, one column each, ranked by unhealthy days: height is the share of its measured days that were unhealthy, colour its average. Point at it to read a city; tap to open it.
  1. 1Bartlett 0%
  2. 2Chattanooga 0%
  3. 3Nashville 0%
  4. 4Jackson 0%
  5. 5Knoxville 0%
  6. 6Hendersonville 0%
  7. 7Athens 0%
  8. 7Dyersburglast full day 3 Oct 0%
  9. 9Maryville 0%
  10. 10Columbia 0%
  11. 11Cookeville 0%
  12. 12Harriman 0%
  13. 13Kingsport 0%
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Estimated: cities without a monitor

Tennessee cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Memphis≈ 7 µg/m³Good
Clarksville≈ 6 µg/m³Good
Murfreesboro≈ 6 µg/m³Good
East Chattanooga≈ 8 µg/m³Good
Franklin≈ 8 µg/m³Good
Cordova≈ 5 µg/m³Good
Johnson City≈ 5 µg/m³Good
Collierville≈ 5 µg/m³Good
Smyrna≈ 7 µg/m³Good
Cleveland≈ 6 µg/m³Good
Brentwood≈ 8 µg/m³Good
Germantown≈ 7 µg/m³Good
Hermitage≈ 8 µg/m³Good
Spring Hill≈ 6 µg/m³Good
La Vergne≈ 7 µg/m³Good
Gallatin≈ 6 µg/m³Good
Mount Juliet≈ 6 µg/m³Good
Lebanon≈ 6 µg/m³Good
Morristown≈ 6 µg/m³Good
Oak Ridge≈ 8 µg/m³Good
Bristol≈ 4 µg/m³Good
Ellendale≈ 7 µg/m³Good
Farragut≈ 8 µg/m³Good
Shelbyville≈ 5 µg/m³Good
East Ridge≈ 8 µg/m³Good
Tullahoma≈ 6 µg/m³Good
Goodlettsville≈ 6 µg/m³Good
Springfield≈ 7 µg/m³Good
Sevierville≈ 8 µg/m³Good
Dickson≈ 6 µg/m³Good
East Brainerd≈ 8 µg/m³Good
Greeneville≈ 5 µg/m³Good

Bad-air episodes in Tennessee

Times when many cities around here had PM2.5 at twice their usual or more on the same days.

Use this board

SmogRank, most polluted cities in Tennessee, United States, PM2.5, last 30 days to 6 Oct 2026, 22:00 UTC, smogrank.com/us/region/tennessee?w=30d.

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

Updated 2026-10-06 22:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.