Worst air pollution Marietta, today and tomorrow
Today (16 July): Air quality in Marietta is fair. AQI, PM10, and O3 are fair; PM2.5, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 29.9/100).
Tomorrow (17 July 2026): Air quality in Marietta is fair. PM10 decreases to good; all other pollutants stay as today. Pollution peaks around 1:00 PM (O3: 29.0/100). 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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Marietta's air quality reflects the northern Atlanta metropolitan corridor in Cobb County, with vehicle emissions from I-75 and I-285 and the surrounding Lockheed Martin aerospace manufacturing and suburban character contributing local sources. The surrounding Georgia Piedmont hills provide modest topographic variation, while the broader Atlanta metropolitan ozone challenge from the vast highway network is the primary warm-season concern throughout the summer ozone season and the aerospace manufacturing represents Marietta's most distinctive industrial emission source.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
29.9/100
PM2.5 (fine particles):
Good
15.4/100
PM10 (coarse particles):
Fair
26.0/100
NO2 (nitrogen dioxide):
Good
1.2/100
O3 (ozone):
Fair
29.9/100
SO2 (sulfur dioxide):
Good
1.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.0/100
PM1 (ultrafine particles):
Good
3.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Fair
29.0/100
PM2.5 (fine particles):
Good
11.2/100
PM10 (coarse particles):
Good
18.4/100
NO2 (nitrogen dioxide):
Good
0.5/100
O3 (ozone):
Fair
29.0/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.1/100
PM1 (ultrafine particles):
Good
2.0/100
Pollen forecast in Marietta
View pollen forecastFrequently Asked Questions
Is air quality bad in Marietta right now?
On 16 July 2026, overall air quality in Marietta is fair. AQI is the main air quality indicator at 29.9/100. Pollution peaks around 12:00 PM (O3: 29.9/100).
Will air quality be worse tomorrow in Marietta?
On 17 July 2026, air quality conditions in Marietta will be similar to today, with AQI forecast at fair at 29.0/100. Pollution peaks around 1:00 PM (O3: 29.0/100).
When is air pollution at its worst in Marietta?
Marietta experiences a distinct seasonal swing in air quality: once summer humidity fades, winter typically offers the most consistently clean air, but summer heat combined with the region's dense forest cover drives an extended ozone season. Prescribed burns are more common in the cooler months and can add brief smoke episodes.
Are air quality levels in Marietta 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.
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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