Worst air pollution Midland - Perth, today and tomorrow

Today (4 August): Air quality in Midland is fair. AQI and NO2 are fair; PM2.5, PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (NO2: 30.0/100).
Tomorrow (5 August 2026): Air quality in Midland is fair. PM2.5 increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 7:00 PM (NO2: 33.5/100). 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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Midland sits well inland in Perth's eastern suburbs, historically home to major railway workshops, and this industrial legacy, combined with a position that receives only weak residual sea-breeze ventilation by the time it reaches this far from the coast, makes it more prone to heat and pollutant build-up on still days than western suburbs. Bushfire smoke is a periodic summer risk from the nearby Darling Range. Overall, background air quality is reasonable but more inland-influenced than coastal Perth.

Today - 4 August | Pollution peaks at 23:00

AQI:

Fair

30.0/100

PM2.5 (fine particles):

Good

12.6/100

PM10 (coarse particles):

Good

4.1/100

NO2 (nitrogen dioxide):

Fair

30.0/100

O3 (ozone):

Good

17.8/100

SO2 (sulfur dioxide):

Good

5.6/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.1/100

PM1 (ultrafine particles):

Good

13.4/100

Levels show the poorest local air quality during the day

Tomorrow - 5 August | Pollution peaks at 19:00

AQI:

Fair

33.5/100

PM2.5 (fine particles):

Fair

22.1/100

PM10 (coarse particles):

Good

6.4/100

NO2 (nitrogen dioxide):

Fair

33.5/100

O3 (ozone):

Good

16.5/100

SO2 (sulfur dioxide):

Good

7.1/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

6.3/100

PM1 (ultrafine particles):

Fair

26.4/100

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Frequently Asked Questions

Is air quality bad in Midland right now?

On 4 August 2026, overall air quality in Midland is fair. AQI is the main air quality indicator at 30.0/100. Pollution peaks around 11:00 PM (NO2: 30.0/100).

Will air quality be worse tomorrow in Midland?

On 5 August 2026, air quality conditions in Midland will be similar to today, with AQI forecast at fair at 33.5/100. Pollution peaks around 7:00 PM (NO2: 33.5/100).

When is air pollution at its worst in Midland?

As one of Perth's more inland suburbs, Midland is somewhat more exposed to smoke lingering from summer bushfires, typically between December and March, since it sits further from the moderating sea breeze than suburbs closer to the coast. Hot, calm days in this period bring the highest chance of haze. The rest of the year generally offers clean air.

Are air quality levels in Midland 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