Worst air pollution Seymour, today and tomorrow

Today (10 August): Air quality in Seymour is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 AM (O3: 14.1/100).
Tomorrow (11 August 2026): Air quality in Seymour is good. All pollutants stay as today. Pollution peaks around 12:00 PM (O3: 14.7/100). 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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Seymour sits along the Goulburn Valley in a region shaped by irrigated agriculture, cropping and grazing, all of which contribute seasonal dust during dry, windy conditions. Winter is typically the more air-quality-sensitive season, as cold nights encourage wood heater use that can linger under valley inversions. Summer heat and surrounding dry bushland bring periodic bushfire smoke risk, particularly in drought years. Rail and highway traffic through the town add a modest, steady background contribution. Outside these seasonal pressures, Seymour generally records good air quality typical of inland Victorian towns.

Today - 10 August | Pollution peaks at 00:00

AQI:

Good

14.1/100

PM2.5 (fine particles):

Good

2.6/100

PM10 (coarse particles):

Good

0.7/100

NO2 (nitrogen dioxide):

Good

11.9/100

O3 (ozone):

Good

14.1/100

SO2 (sulfur dioxide):

Good

1.9/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

1.2/100

PM1 (ultrafine particles):

Good

3.6/100

Levels show the poorest local air quality during the day

Tomorrow - 11 August | Pollution peaks at 12:00

AQI:

Good

14.7/100

PM2.5 (fine particles):

Good

3.8/100

PM10 (coarse particles):

Good

1.5/100

NO2 (nitrogen dioxide):

Good

6.5/100

O3 (ozone):

Good

14.7/100

SO2 (sulfur dioxide):

Good

1.5/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

0.7/100

PM1 (ultrafine particles):

Good

2.2/100

Pollen forecast in Seymour

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Frequently Asked Questions

Is air quality bad in Seymour right now?

On 10 August 2026, overall air quality in Seymour is good. AQI is the main air quality indicator at 14.1/100. Pollution peaks around 12:00 AM (O3: 14.1/100).

Will air quality be worse tomorrow in Seymour?

On 11 August 2026, air quality conditions in Seymour will be similar to today, with AQI forecast at good at 14.7/100. Pollution peaks around 12:00 PM (O3: 14.7/100).

When is air pollution at its worst in Seymour?

The least favourable stretch for air quality in Seymour is hot, dry summer stretches (December-March), when bushfire smoke is the dominant risk. Winter brings a quieter risk too: wood-heater smoke pooling on cold, still nights. For people with asthma or young kids, that's the window to watch, with little concern otherwise.

Are air quality levels in Seymour 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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