Mt Macedon Memorial Cross, Mount Macedon Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (7 October): Air quality in Mt Macedon Memorial Cross is fair. AQI, PM2.5, and PM10 are fair; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (PM2.5: 23.2/100).
Air Quality Tomorrow
Tomorrow (8 October 2026): Air quality in Mt Macedon Memorial Cross is good. AQI improves to good; PM2.5 decreases to good; PM10 decreases to good; all other pollutants stay as today. Pollution peaks around 12:00 AM (PM2.5: 19.6/100).
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Air Quality
Today - 7 October
| Pollen species | Level | Value |
|---|---|---|
| AQI | Fair | 23.2/100 |
| PM2.5 (fine particles) | Fair | 23.2/100 |
| PM10 (coarse particles) | Fair | 22.2/100 |
| NO2 (nitrogen dioxide) | Good | 17.4/100 |
| O3 (ozone) | Good | 19.7/100 |
| SO2 (sulfur dioxide) | Good | 3.1/100 |
| CO (carbon monoxide) | Good | 0.4/100 |
| HCHO (formaldehyde) | Good | 3.1/100 |
| PM1 (ultrafine particles) | Good | 9.8/100 |
Tomorrow - 8 October
| Pollen species | Level | Value |
|---|---|---|
| AQI | Good | 19.6/100 |
| PM2.5 (fine particles) | Good | 19.6/100 |
| PM10 (coarse particles) | Good | 14.8/100 |
| NO2 (nitrogen dioxide) | Good | 16.0/100 |
| O3 (ozone) | Good | 17.7/100 |
| SO2 (sulfur dioxide) | Good | 3.2/100 |
| CO (carbon monoxide) | Good | 0.4/100 |
| HCHO (formaldehyde) | Good | 3.3/100 |
| PM1 (ultrafine particles) | Good | 9.4/100 |
Local Environmental Conditions
With little dense development around this location in Mount Macedon, local traffic emissions are modest. Woodland in the area offers some natural filtering of particles from traffic. Winds here are fairly strong, averaging around 15 km/h, which helps disperse local pollution. On some days, pollution drifting in from farther away outweighs local sources.
Particle levels tend to be highest from June to July, when wood burning and traffic add more emissions and cold, calm spells at around 7°C slow their dispersal. In the warmer months, with summer temperatures averaging only about 20°C, ozone rarely becomes a serious problem. Overall, breezy weather in September, with winds near 20 km/h, tends to sweep pollution away.
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Frequently Asked Questions About Air Quality in Victoria
Is air quality bad in Mt Macedon Memorial Cross right now?
On 7 October 2026, overall air quality in Mt Macedon Memorial Cross is fair. AQI is the main air quality indicator at 23.2/100. Pollution peaks around 10:00 AM (PM2.5: 23.2/100).
Will air quality be worse tomorrow in Mt Macedon Memorial Cross?
On 8 October 2026, air quality conditions in Mt Macedon Memorial Cross will be better than today, with AQI forecast at good at 19.6/100. Pollution peaks around 12:00 AM (PM2.5: 19.6/100).
When is air pollution at its worst in Mt Macedon Memorial Cross?
Particle levels tend to be highest from June to July, when wood burning and traffic add more emissions and cold, calm spells at around 7°C slow their dispersal. In the warmer months, with summer temperatures averaging only about 20°C, ozone rarely becomes a serious problem. Overall, breezy weather in September, with winds near 20 km/h, tends to sweep pollution away.
Are air quality levels in Mt Macedon Memorial Cross 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.
Understanding the Scale
The 0–100 air quality scores represent risk levels, not direct air pollutant concentrations. Higher scores indicate higher risk.
Air Quality
| Good | 0-20 | Low air quality risk. Air quality is expected to be good, with low levels of pollution. |
| Fair | 20-40 | Generally low air quality risk. Air quality is expected to be acceptable, with some pollution present. |
| Moderate | 40-60 | Moderate air quality risk. Air pollution is elevated and air quality may be less favorable. |
| Poor | 60-80 | High air quality risk. Air pollution is high and air quality is expected to be poor. |
| Very Poor | 80-100 | Very high air quality risk. Air pollution is very high and air quality is expected to be very poor. |