Worst air pollution Historic Rossetter House Museum - Melbourne, today and tomorrow

Today (20 September): Air quality in Historic Rossetter House Museum is very poor. AQI and PM10 are very poor; PM2.5 is moderate; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 PM (PM10: 100/100).
Tomorrow (21 September 2026): Air quality in Historic Rossetter House Museum is very poor. PM2.5 increases to poor; all other pollutants stay as today. Pollution peaks around 4:00 PM (PM10: 100/100). Airmine updates local air quality forecasts four times daily.

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In Historic Rossetter House Museum, occasional vehicle traffic and open farmland nearby mean particulate matter here comes more from dust and seasonal field work than congestion. Nearby trees help trap a portion of this particulate load before it spreads. Daily conditions can shift noticeably depending on wind, temperature, and traffic patterns.

Today - 20 September | Pollution peaks at 19:00

AQI:

Very poor

100/100

PM2.5 (fine particles):

Moderate

53.0/100

PM10 (coarse particles):

Very poor

100/100

NO2 (nitrogen dioxide):

Good

1.3/100

O3 (ozone):

Good

12.5/100

SO2 (sulfur dioxide):

Good

0.1/100

CO (carbon monoxide):

Good

0.4/100

HCHO (formaldehyde):

Good

1.2/100

PM1 (ultrafine particles):

Good

5.6/100

Levels show the poorest local air quality during the day

Tomorrow - 21 September | Pollution peaks at 16:00

AQI:

Very poor

100/100

PM2.5 (fine particles):

Poor

64.2/100

PM10 (coarse particles):

Very poor

100/100

NO2 (nitrogen dioxide):

Good

1.0/100

O3 (ozone):

Good

11.9/100

SO2 (sulfur dioxide):

Good

0.2/100

CO (carbon monoxide):

Good

0.4/100

HCHO (formaldehyde):

Good

0.8/100

PM1 (ultrafine particles):

Good

6.7/100

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Frequently Asked Questions

Is air quality bad in Historic Rossetter House Museum right now?

On 20 September 2026, overall air quality in Historic Rossetter House Museum is very poor. AQI is the main air quality indicator at 100/100. Pollution peaks around 7:00 PM (PM10: 100/100).

Will air quality be worse tomorrow in Historic Rossetter House Museum?

On 21 September 2026, air quality conditions in Historic Rossetter House Museum will be similar to today, with AQI forecast at very poor at 100/100. Pollution peaks around 4:00 PM (PM10: 100/100).

When is air pollution at its worst in Historic Rossetter House Museum?

This area sees its calmest stretch from December to February, with wind speeds around 16 km/h and temperatures near 19°C, cool and still enough for smoke and particulates to build up near the ground. Temperatures climb to around 28°C on average from July to September, warm enough for intense sun and heat to fuel ground-level ozone formation.

Are air quality levels in Historic Rossetter House Museum 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: 20 September 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.

Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.

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