Worst air pollution Stone Mountain Park - Atlanta, today and tomorrow

Today (18 July): Air quality in Stone Mountain Park is fair. AQI, PM10, and O3 are fair; PM2.5, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 29.2/100).
Tomorrow (19 July 2026): Air quality in Stone Mountain Park is fair. All pollutants stay as today. Pollution peaks around 1:00 PM (O3: 29.5/100). 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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Atlanta's Stone Mountain Park air quality reflects the elevated Stone Mountain granite monadnock at 514 metres, with the elevated summit position above the surrounding Georgia Piedmont plain providing marginally better dispersal than the flat Atlanta metropolitan floor. Vehicle traffic on the park roads contributes seasonal local sources, while the summit's elevated position and the surrounding forest provide natural buffering and Stone Mountain generally maintains moderate Atlanta metropolitan readings throughout the year.

Today - 18 July | Pollution peaks at 08:00

AQI:

Fair

29.2/100

PM2.5 (fine particles):

Good

10.5/100

PM10 (coarse particles):

Fair

20.3/100

NO2 (nitrogen dioxide):

Good

0.7/100

O3 (ozone):

Fair

29.2/100

SO2 (sulfur dioxide):

Good

2.7/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

0.7/100

PM1 (ultrafine particles):

Good

2.1/100

Levels show the poorest local air quality during the day

Tomorrow - 19 July | Pollution peaks at 13:00

AQI:

Fair

29.5/100

PM2.5 (fine particles):

Good

15.4/100

PM10 (coarse particles):

Fair

23.2/100

NO2 (nitrogen dioxide):

Good

1.9/100

O3 (ozone):

Fair

29.5/100

SO2 (sulfur dioxide):

Good

1.6/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

0.9/100

PM1 (ultrafine particles):

Good

3.8/100

Other Landmarks in Atlanta

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Frequently Asked Questions

Is air quality bad in Stone Mountain Park right now?

On 18 July 2026, overall air quality in Stone Mountain Park is fair. AQI is the main air quality indicator at 29.2/100. Pollution peaks around 8:00 AM (O3: 29.2/100).

Will air quality be worse tomorrow in Stone Mountain Park?

On 19 July 2026, air quality conditions in Stone Mountain Park will be similar to today, with AQI forecast at fair at 29.5/100. Pollution peaks around 1:00 PM (O3: 29.5/100).

When is air pollution at its worst in Stone Mountain Park?

Stone Mountain Park experiences the same seasonal air quality swings as the rest of Atlanta. In short, the cleanest conditions usually arrive in winter, once the humid summer ozone season has ended, whereas long, hot, humid summers bring the year's worst ozone readings. Prescribed burns are more common in the cooler months and can add brief smoke episodes.

Are air quality levels in Stone Mountain Park 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: 19 July 2026 at 05:53 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