Brown Range Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (7 October): Air quality in Brown Range is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (PM10: 15.4/100).
Air Quality Tomorrow
Tomorrow (8 October 2026): Air quality in Brown Range is good. All pollutants stay as today. Pollution peaks around 11:00 PM (O3: 11.6/100).
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Air Quality
Today - 7 October
| Pollen species | Level | Value |
|---|---|---|
| AQI | Good | 15.4/100 |
| PM2.5 (fine particles) | Good | 11.4/100 |
| PM10 (coarse particles) | Good | 15.4/100 |
| NO2 (nitrogen dioxide) | Good | 0.4/100 |
| O3 (ozone) | Good | 12.0/100 |
| SO2 (sulfur dioxide) | Good | 0.4/100 |
| CO (carbon monoxide) | Good | 0.3/100 |
| HCHO (formaldehyde) | Good | 0.7/100 |
| PM1 (ultrafine particles) | Good | 2.9/100 |
Tomorrow - 8 October
| Pollen species | Level | Value |
|---|---|---|
| AQI | Good | 11.6/100 |
| PM2.5 (fine particles) | Good | 8.2/100 |
| PM10 (coarse particles) | Good | 11.6/100 |
| NO2 (nitrogen dioxide) | Good | 0.3/100 |
| O3 (ozone) | Good | 11.6/100 |
| SO2 (sulfur dioxide) | Good | 0.4/100 |
| CO (carbon monoxide) | Good | 0.3/100 |
| HCHO (formaldehyde) | Good | 0.6/100 |
| PM1 (ultrafine particles) | Good | 1.6/100 |
Local Environmental Conditions
Around the heart of Brown Range, traffic is light and there are few concentrated sources of air pollution. Bare and dry ground means wind-blown dust can push up coarse particle levels on windy days. Winds here are fairly strong, averaging around 25 km/h, which helps disperse local pollution. On some days, pollution drifting in from farther away outweighs local sources.
From June to August, cooler nights and lighter winds, with temperatures around 18°C, let traffic pollution linger near busy roads. Later in the year, hot afternoons from September to May, averaging 29°C in the warmest month, are when ozone is most likely to build up. Wildfire season runs roughly from May to March, when smoke from fires, near or far, can bring hazy days and very poor air quality.
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Frequently Asked Questions About Air Quality in Western Australia
Is air quality bad in Brown Range right now?
On 7 October 2026, overall air quality in Brown Range is good. AQI is the main air quality indicator at 15.4/100. Pollution peaks around 8:00 AM (PM10: 15.4/100).
Will air quality be worse tomorrow in Brown Range?
On 8 October 2026, air quality conditions in Brown Range will be similar to today, with AQI forecast at good at 11.6/100. Pollution peaks around 11:00 PM (O3: 11.6/100).
When is air pollution at its worst in Brown Range?
From June to August, cooler nights and lighter winds, with temperatures around 18°C, let traffic pollution linger near busy roads. Later in the year, hot afternoons from September to May, averaging 29°C in the warmest month, are when ozone is most likely to build up. Wildfire season runs roughly from May to March, when smoke from fires, near or far, can bring hazy days and very poor air quality.
Are air quality levels in Brown Range 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. |