Worst air pollution Unley - Adelaide, today and tomorrow
Today (17 September): Air quality in Unley is moderate. AQI, PM2.5, and NO2 are moderate; PM10 is fair; O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:30 PM (NO2: 52.1/100).
Tomorrow (18 September 2026): Air quality in Unley is moderate. PM2.5 decreases to fair; PM10 decreases to good; all other pollutants stay as today. Pollution peaks around 7:30 PM (NO2: 50.8/100). 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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Unley sits on gently elevated ground in inner southern Adelaide, its leafy streets supporting reasonable natural ventilation, tempered by steady traffic along Unley Road's shopping strip. There is no industry present. Adelaide's consistent Gulf St Vincent sea breeze reaches this inner suburb reasonably well. Bushfire smoke is a periodic summer risk from the nearby Adelaide Hills. Agricultural dust is a lesser factor given the suburb's fully urban character. Overall, background air quality here is generally good for an inner suburb.
Today - 17 September | Pollution peaks at 18:30
AQI:
Moderate
52.1/100
PM2.5 (fine particles):
Moderate
40.9/100
PM10 (coarse particles):
Fair
21.3/100
NO2 (nitrogen dioxide):
Moderate
52.1/100
O3 (ozone):
Good
11.6/100
SO2 (sulfur dioxide):
Good
3.0/100
CO (carbon monoxide):
Good
0.8/100
HCHO (formaldehyde):
Good
4.0/100
PM1 (ultrafine particles):
Good
13.5/100
Levels show the poorest local air quality during the day
Tomorrow - 18 September | Pollution peaks at 19:30
AQI:
Moderate
50.8/100
PM2.5 (fine particles):
Fair
30.8/100
PM10 (coarse particles):
Good
14.5/100
NO2 (nitrogen dioxide):
Moderate
50.8/100
O3 (ozone):
Good
12.4/100
SO2 (sulfur dioxide):
Good
3.1/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
9.7/100
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Frequently Asked Questions
Is air quality bad in Unley right now?
On 17 September 2026, overall air quality in Unley is moderate. AQI is the main air quality indicator at 52.1/100. Pollution peaks around 6:30 PM (NO2: 52.1/100).
Will air quality be worse tomorrow in Unley?
On 18 September 2026, air quality conditions in Unley will be similar to today, with AQI forecast at moderate at 50.8/100. Pollution peaks around 7:30 PM (NO2: 50.8/100).
When is air pollution at its worst in Unley?
Unley typically enjoys clean air for most of the year, supported by Adelaide's regular sea breezes. The main exception is summer, December through March, when bushfire smoke from the Adelaide Hills or further afield can settle over this inner suburb on hot, still days. Outside of fire season, expect consistently good air quality with little cause for concern.
Are air quality levels in Unley 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: 16 September 2026 at 20:30 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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