Worst air pollution Marion - Adelaide, today and tomorrow
Today (4 August): Air quality in Marion is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:30 PM (O3: 17.3/100).
Tomorrow (5 August 2026): Air quality in Marion is good. All pollutants stay as today. Pollution peaks around 2:30 PM (O3: 14.4/100). 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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Marion sits in Adelaide's southern suburbs, a flat, midway position between the coast and the foothills, where traffic around its major shopping centre and surrounding arterial roads is the main local air quality factor. Sea-breeze ventilation from Gulf St Vincent still reaches the area reasonably well. Bushfire smoke is a periodic summer risk from the Adelaide Hills further east. There is no industry present. Overall, background air quality here is generally good, typical of Adelaide's established middle-ring suburbs.
Today - 4 August | Pollution peaks at 12:30
AQI:
Good
17.3/100
PM2.5 (fine particles):
Good
4.4/100
PM10 (coarse particles):
Good
1.7/100
NO2 (nitrogen dioxide):
Good
3.1/100
O3 (ozone):
Good
17.3/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
2.6/100
Levels show the poorest local air quality during the day
Tomorrow - 5 August | Pollution peaks at 14:30
AQI:
Good
14.4/100
PM2.5 (fine particles):
Good
4.3/100
PM10 (coarse particles):
Good
1.6/100
NO2 (nitrogen dioxide):
Good
4.2/100
O3 (ozone):
Good
14.4/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.2/100
PM1 (ultrafine particles):
Good
3.7/100
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Frequently Asked Questions
Is air quality bad in Marion right now?
On 4 August 2026, overall air quality in Marion is good. AQI is the main air quality indicator at 17.3/100. Pollution peaks around 12:30 PM (O3: 17.3/100).
Will air quality be worse tomorrow in Marion?
On 5 August 2026, air quality conditions in Marion will be similar to today, with AQI forecast at good at 14.4/100. Pollution peaks around 2:30 PM (O3: 14.4/100).
When is air pollution at its worst in Marion?
Marion, sitting on the plain between the hills and the coast, usually enjoys good air quality thanks to sea breezes, with summer bushfire smoke, December to March, the main exception during hot, still spells before the afternoon breeze sets in.
Are air quality levels in Marion 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: 4 August 2026 at 16:38 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
For long term forecasts and maps, see the Airmine app