Worst air pollution Sebastopol - Ballarat, today and tomorrow
Today (10 August): Air quality in Sebastopol is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 AM (O3: 12.9/100).
Tomorrow (11 August 2026): Air quality in Sebastopol is good. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 13.1/100). Airmine updates local air quality forecasts four times daily.
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Sebastopol sits on Ballarat's southern fringe, sharing the city's elevated, cool-climate setting that favours winter inversions and wood heater smoke build-up on calm nights, though its slightly more open, outer-suburban character allows somewhat better air movement than the immediate lake precinct. Bushfire smoke is a periodic summer risk from surrounding forested country. There is no significant industry. Overall, background air quality here is generally good, following the same seasonal pattern typical of the wider Ballarat area.
Today - 10 August | Pollution peaks at 05:00
AQI:
Good
12.9/100
PM2.5 (fine particles):
Good
0.9/100
PM10 (coarse particles):
Good
0.4/100
NO2 (nitrogen dioxide):
Good
1.7/100
O3 (ozone):
Good
12.9/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.1/100
PM1 (ultrafine particles):
Good
0.8/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 15:00
AQI:
Good
13.1/100
PM2.5 (fine particles):
Good
3.2/100
PM10 (coarse particles):
Good
1.2/100
NO2 (nitrogen dioxide):
Good
1.5/100
O3 (ozone):
Good
13.1/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
1.8/100
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Frequently Asked Questions
Is air quality bad in Sebastopol right now?
On 10 August 2026, overall air quality in Sebastopol is good. AQI is the main air quality indicator at 12.9/100. Pollution peaks around 5:00 AM (O3: 12.9/100).
Will air quality be worse tomorrow in Sebastopol?
On 11 August 2026, air quality conditions in Sebastopol will be similar to today, with AQI forecast at good at 13.1/100. Pollution peaks around 3:00 PM (O3: 13.1/100).
When is air pollution at its worst in Sebastopol?
Sebastopol, on Ballarat's southern edge, tends to see its air quality affected most by winter wood-heater smoke on cold, still nights and by summer bushfire smoke, December to March, when fires in the surrounding forests can send haze into the region. Outside these periods, expect generally clear conditions.
Are air quality levels in Sebastopol 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: 9 August 2026 at 20:27 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.
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