Air quality in United States
Air quality in Tennessee today
Updated
Good: average US AQI 41 across 13 cities in Tennessee Worst now: Nashville (54); cleanest: Johnson City (34).
Live US AQI, PM2.5 and ozone for cities across Tennessee, compared with the United States average.
- Average US AQI
- 41 Good
- United States average
- 49 747 cities
- Most polluted now
- Nashville AQI 54
- Cleanest now
- Johnson City AQI 34
- Cities above 100
- 0
Air quality in Tennessee today
Right now the modelled air quality in Tennessee averages a US AQI of 41 (Good) across the 13 cities we track. By category: 11 Good, 2 Moderate (of 13).
That is 8 points cleaner than the United States average of 49, ranking 25 of 51 states from cleanest to most polluted.
Nashville has the worst air at 54 (PM2.5 2.8 µg/m³), and Johnson City the cleanest at 34. No tracked city is above 100, so no group needs to change plans.
Tennessee cities by AQI (most polluted first)
| City | US AQI | Category | PM2.5 µg/m³ | PM10 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Nashville | 54 | Moderate | 2.8 | 3 | 130 |
| Brentwood | 54 | Moderate | 2.8 | 3 | 130 |
| Knoxville | 46 | Good | 4.5 | 5 | 112 |
| Memphis | 41 | Good | 2.5 | 3 | 124 |
| Bartlett | 41 | Good | 2.5 | 3 | 124 |
| Jackson | 39 | Good | 1.6 | 2 | 119 |
| Lebanon | 38 | Good | 2.4 | 2 | 131 |
| Smyrna | 37 | Good | 2.5 | 3 | 126 |
| Cleveland | 37 | Good | 3.3 | 4 | 109 |
| Columbia | 37 | Good | 2.7 | 3 | 119 |
| Morristown | 35 | Good | 4.9 | 6 | 101 |
| Bristol | 35 | Good | 5 | 7 | 87 |
| Johnson City | 34 | Good | 4.9 | 7 | 93 |
What the US AQI numbers mean
| US AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500. |
Modelled by CAMS (Copernicus) via Open-Meteo, refreshed twice a day; read hour by hour from the forecast.
Cities in Tennessee
- Air quality in Nashville
- Air quality in Memphis
- Air quality in Knoxville
- Air quality in Chattanooga
- Air quality in Clarksville
- Air quality in Murfreesboro
- Air quality in East Chattanooga
- Air quality in Jackson
- Air quality in Johnson City
- Air quality in Bartlett
- Air quality in Smyrna
- Air quality in Cleveland
- Air quality in Brentwood
- Air quality in Columbia
- Air quality in Lebanon
- Air quality in Morristown
- Air quality in Bristol
More
Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS).