Government House, Perth Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (7 October): Air quality in Government House is fair. AQI and PM2.5 are fair; PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (PM2.5: 38.8/100).
Air Quality Tomorrow
Tomorrow (8 October 2026): Air quality in Government House is moderate. AQI worsens to moderate; PM2.5 increases to moderate; PM10 increases to fair; all other pollutants stay as today. Pollution peaks around 1:00 PM (PM2.5: 40.8/100).
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Air Quality
Today - 7 October
| Pollen species | Level | Value |
|---|---|---|
| AQI | Fair | 38.8/100 |
| PM2.5 (fine particles) | Fair | 38.8/100 |
| PM10 (coarse particles) | Good | 17.3/100 |
| NO2 (nitrogen dioxide) | Good | 17.5/100 |
| O3 (ozone) | Good | 17.1/100 |
| SO2 (sulfur dioxide) | Good | 2.5/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 8.8/100 |
| PM1 (ultrafine particles) | Good | 17.8/100 |
Tomorrow - 8 October
| Pollen species | Level | Value |
|---|---|---|
| AQI | Moderate | 40.8/100 |
| PM2.5 (fine particles) | Moderate | 40.8/100 |
| PM10 (coarse particles) | Fair | 23.4/100 |
| NO2 (nitrogen dioxide) | Good | 11.5/100 |
| O3 (ozone) | Good | 16.1/100 |
| SO2 (sulfur dioxide) | Good | 1.3/100 |
| CO (carbon monoxide) | Good | 0.4/100 |
| HCHO (formaldehyde) | Good | 1.2/100 |
| PM1 (ultrafine particles) | Good | 2.8/100 |
Local Environmental Conditions
With buildings covering much of the area around this location in Perth, traffic and other urban emissions are the biggest local influence on air quality. Breezes off the nearby water usually help clear pollutants away. On some days, pollution drifting in from farther away outweighs local sources. Levels are generally highest right next to busy roads and drop off quickly with distance.
Cooler, still evenings from July to September, averaging about 16°C, tend to hold exhaust close to busy streets. Summer sun from December to April cooks traffic fumes into ozone, especially in the warmest month, which averages 24°C. On the plus side, stronger winds around December, about 25 km/h on average, usually bring some of the cleanest air of the year.
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Frequently Asked Questions About Air Quality in Western Australia
Is air quality bad in Government House right now?
On 7 October 2026, overall air quality in Government House is fair. AQI is the main air quality indicator at 38.8/100. Pollution peaks around 9:00 AM (PM2.5: 38.8/100).
Will air quality be worse tomorrow in Government House?
On 8 October 2026, air quality conditions in Government House will be worse than today, with AQI forecast at moderate at 40.8/100. Pollution peaks around 1:00 PM (PM2.5: 40.8/100).
When is air pollution at its worst in Government House?
Cooler, still evenings from July to September, averaging about 16°C, tend to hold exhaust close to busy streets. Summer sun from December to April cooks traffic fumes into ozone, especially in the warmest month, which averages 24°C. On the plus side, stronger winds around December, about 25 km/h on average, usually bring some of the cleanest air of the year.
Are air quality levels in Government House 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. |