Yass Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (11 October): Air quality in Yass is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (NO2: 17.4/100).
Air Quality Tomorrow
Tomorrow (12 October 2026): Air quality in Yass is good. All pollutants stay as today. Pollution peaks around 4:00 PM (O3: 15.7/100).
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Air Quality
Today - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Good | 17.4/100 |
| PM2.5 (fine particles) | Good | 4.5/100 |
| PM10 (coarse particles) | Good | 3.2/100 |
| NO2 (nitrogen dioxide) | Good | 17.4/100 |
| O3 (ozone) | Good | 16.2/100 |
| SO2 (sulfur dioxide) | Good | 0.2/100 |
| CO (carbon monoxide) | Good | 0.3/100 |
| HCHO (formaldehyde) | Good | 2.9/100 |
| PM1 (ultrafine particles) | Good | 0.7/100 |
Tomorrow - 12 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Good | 15.7/100 |
| PM2.5 (fine particles) | Good | 5.9/100 |
| PM10 (coarse particles) | Good | 7.4/100 |
| NO2 (nitrogen dioxide) | Good | 12.0/100 |
| O3 (ozone) | Good | 15.7/100 |
| SO2 (sulfur dioxide) | Good | 0.4/100 |
| CO (carbon monoxide) | Good | 0.3/100 |
| HCHO (formaldehyde) | Good | 4.1/100 |
| PM1 (ultrafine particles) | Good | 0.8/100 |
Local Environmental Conditions
The center of Yass combines built-up streets with more open land, so local traffic matters, though emissions are less concentrated than in a city center. Woodland in the area offers some natural filtering of particles from traffic. Pollution carried in from the wider region can also raise levels at times.
Summer sun from January to February cooks traffic fumes into ozone, especially in the warmest month, which averages 22°C. In contrast, fine particle levels climb from June to July, as home heating and traffic combine with cold, still air averaging 6°C. Short-term changes follow the weather: calm spells raise levels, while breezy or rainy days lower them.
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Frequently Asked Questions About Air Quality in New South Wales
Is air quality bad in Yass right now?
On 11 October 2026, overall air quality in Yass is good. AQI is the main air quality indicator at 17.4/100. Pollution peaks around 7:00 AM (NO2: 17.4/100).
Will air quality be worse tomorrow in Yass?
On 12 October 2026, air quality conditions in Yass will be similar to today, with AQI forecast at good at 15.7/100. Pollution peaks around 4:00 PM (O3: 15.7/100).
When is air pollution at its worst in Yass?
Summer sun from January to February cooks traffic fumes into ozone, especially in the warmest month, which averages 22°C. In contrast, fine particle levels climb from June to July, as home heating and traffic combine with cold, still air averaging 6°C. Short-term changes follow the weather: calm spells raise levels, while breezy or rainy days lower them.
Are air quality levels in Yass 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. |