Worst air pollution Rock City - Chattanooga, today and tomorrow
Today (16 July): Air quality in Rock City is fair. AQI, PM10, and O3 are fair; PM2.5, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 32.1/100).
Tomorrow (17 July 2026): Air quality in Rock City is fair. PM2.5 increases to fair; PM10 decreases to good; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 30.8/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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As a garden and rock formation park atop Lookout Mountain, Rock City experiences air quality conditions similar to the rest of Chattanooga, following the same broader regional pattern. As with most sublevel sites, the broader city trend is the best guide to typical conditions here.
Today - 16 July | Pollution peaks at 11:00
AQI:
Fair
32.1/100
PM2.5 (fine particles):
Good
16.5/100
PM10 (coarse particles):
Fair
25.2/100
NO2 (nitrogen dioxide):
Good
6.0/100
O3 (ozone):
Fair
32.1/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.4/100
PM1 (ultrafine particles):
Good
12.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Fair
30.8/100
PM2.5 (fine particles):
Fair
22.3/100
PM10 (coarse particles):
Good
18.5/100
NO2 (nitrogen dioxide):
Good
6.3/100
O3 (ozone):
Fair
30.8/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.1/100
PM1 (ultrafine particles):
Fair
22.2/100
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Frequently Asked Questions
Is air quality bad in Rock City right now?
On 16 July 2026, overall air quality in Rock City is fair. AQI is the main air quality indicator at 32.1/100. Pollution peaks around 11:00 AM (O3: 32.1/100).
Will air quality be worse tomorrow in Rock City?
On 17 July 2026, air quality conditions in Rock City will be similar to today, with AQI forecast at fair at 30.8/100. Pollution peaks around 2:00 PM (O3: 30.8/100).
When is air pollution at its worst in Rock City?
Air quality around Rock City changes with the seasons, as once summer humidity fades, winter typically offers the most consistently clean air; by contrast, hot, humid summer days bring the highest ozone risk, amplified by natural emissions from the dense surrounding forests. Occasional agricultural or prescribed-burning smoke can add short-lived particulate spikes outside the main summer ozone season.
Are air quality levels in Rock City 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.
Want to see air quality forecasts for other cities in United States?
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app