Worst air pollution Northbridge - Perth, today and tomorrow
Today (4 August): Air quality in Northbridge is medium. AQI and NO2 are medium; PM2.5, PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (NO2: 51.6/100).
Tomorrow (5 August 2026): Air quality in Northbridge is fair. PM2.5 increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 7:00 PM (NO2: 55.4/100). 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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Perth's densest nightlife and entertainment district sits immediately north of the CBD, wedged against rail lines and busy inner-city streets, making Northbridge one of the more traffic-influenced pockets of an otherwise breezy city. Restaurants, bars and constant foot and vehicle traffic keep local pollution levels higher than in Perth's leafy suburbs, and the tight urban grid limits how easily the Indian Ocean sea breeze can flush it out. Bushfire smoke remains a seasonal summer concern here as elsewhere across the region.
Today - 4 August | Pollution peaks at 23:00
AQI:
Medium
51.6/100
PM2.5 (fine particles):
Good
15.8/100
PM10 (coarse particles):
Good
5.1/100
NO2 (nitrogen dioxide):
Medium
51.6/100
O3 (ozone):
Good
17.8/100
SO2 (sulfur dioxide):
Good
14.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Good
16.8/100
Levels show the poorest local air quality during the day
Tomorrow - 5 August | Pollution peaks at 19:00
AQI:
Medium
55.4/100
PM2.5 (fine particles):
Fair
27.0/100
PM10 (coarse particles):
Good
8.1/100
NO2 (nitrogen dioxide):
Medium
55.4/100
O3 (ozone):
Good
16.5/100
SO2 (sulfur dioxide):
Good
17.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.3/100
PM1 (ultrafine particles):
Fair
31.6/100
Other Landmarks in Perth
Sports venues in Perth
Frequently Asked Questions
Is air quality bad in Northbridge right now?
On 4 August 2026, overall air quality in Northbridge is medium. AQI is the main air quality indicator at 51.6/100. Pollution peaks around 11:00 PM (NO2: 51.6/100).
Will air quality be worse tomorrow in Northbridge?
On 5 August 2026, air quality conditions in Northbridge will be worse than today, with PM1 forecast at fair at 31.6/100. Pollution peaks around 7:00 PM (NO2: 55.4/100).
When is air pollution at its worst in Northbridge?
Northbridge shares Perth's seasonal pattern, with conditions worsening during the December-to-March bushfire season, the one period that can override an otherwise clean profile. Outside fire season, the reliable afternoon sea breeze keeps the air flushed clean. Keeping half an eye on forecasts during that stretch is the practical takeaway otherwise.
Are air quality levels in Northbridge 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: 4 August 2026 at 16:38 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.
For long term forecasts and maps, see the Airmine app