Worst air pollution Government House - Perth, today and tomorrow
Today (17 September): Air quality in Government House is fair. AQI, PM2.5, NO2, and O3 are fair; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 PM (PM2.5: 31.2/100).
Tomorrow (18 September 2026): Air quality in Government House is fair. NO2 decreases to good; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 3:00 PM (PM2.5: 29.1/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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In Government House, persistent traffic congestion paired with dense urban land use keeps particulate and nitrogen dioxide levels elevated here. Vegetation nearby provides a modest natural filter for airborne particulates. The surrounding area tends to follow a similar pattern, with only minor local variation. Wind patterns on any given day can shift this picture meaningfully in either direction.
Today - 17 September | Pollution peaks at 22:00
AQI:
Fair
31.2/100
PM2.5 (fine particles):
Fair
31.2/100
PM10 (coarse particles):
Good
13.0/100
NO2 (nitrogen dioxide):
Fair
22.7/100
O3 (ozone):
Fair
22.0/100
SO2 (sulfur dioxide):
Good
2.5/100
CO (carbon monoxide):
Good
0.5/100
HCHO (formaldehyde):
Good
6.5/100
PM1 (ultrafine particles):
Good
11.3/100
Levels show the poorest local air quality during the day
Tomorrow - 18 September | Pollution peaks at 15:00
AQI:
Fair
29.1/100
PM2.5 (fine particles):
Fair
29.1/100
PM10 (coarse particles):
Good
14.3/100
NO2 (nitrogen dioxide):
Good
15.8/100
O3 (ozone):
Good
19.7/100
SO2 (sulfur dioxide):
Good
1.9/100
CO (carbon monoxide):
Good
0.4/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
9.5/100
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Frequently Asked Questions
Is air quality bad in Government House right now?
On 17 September 2026, overall air quality in Government House is fair. AQI is the main air quality indicator at 31.2/100. Pollution peaks around 10:00 PM (PM2.5: 31.2/100).
Will air quality be worse tomorrow in Government House?
On 18 September 2026, air quality conditions in Government House will be similar to today, with AQI forecast at fair at 29.1/100. Pollution peaks around 3:00 PM (PM2.5: 29.1/100).
When is air pollution at its worst in Government House?
Winter is usually when particulate matter climbs highest across the city, as reduced winter air mixing lets traffic and heating emissions accumulate close to the ground. As the fire season builds, bushfire smoke typically becomes the dominant summer issue in this part of the city, since hot, dry summers raise both bushfire risk and the ozone formed from sunlight reacting with traffic emissions.
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.
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Data provided by Airmine — Last update: 17 September 2026 at 03:00 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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