Worst air pollution Vosloorus Extension - Alberton, today and tomorrow
Today (20 September): Air quality in Vosloorus Extension is poor. AQI, PM2.5, and PM1 are poor; PM10, NO2, O3, SO2, and HCHO are moderate; CO is good. Pollution peaks around 11:00 PM (PM1: 73.0/100).
Tomorrow (21 September 2026): Air quality in Vosloorus Extension is very poor. AQI worsens to very poor; PM2.5 increases to very poor; NO2 increases to poor; O3 decreases to fair; HCHO increases to poor; PM1 increases to very poor; all other pollutants stay as today. Pollution peaks around 11:00 PM (PM1: 92.8/100). Airmine updates local air quality forecasts four times daily.
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Vosloorus Extension lies roughly 20 km south-southeast of Johannesburg. Vosloorus Extension deals with the same basic air quality drivers as most Highveld towns: vehicle traffic and government, finance, and commercial operations, both of which matter most on calm winter mornings when a low inversion holds emissions close to the ground. Summer generally undoes this with stronger, more consistent winds. The wider Highveld region generally follows this same rough pattern.
Today - 20 September | Pollution peaks at 23:00
AQI:
Poor
73.0/100
PM2.5 (fine particles):
Poor
62.9/100
PM10 (coarse particles):
Moderate
45.5/100
NO2 (nitrogen dioxide):
Moderate
48.2/100
O3 (ozone):
Moderate
40.1/100
SO2 (sulfur dioxide):
Moderate
45.7/100
CO (carbon monoxide):
Good
2.8/100
HCHO (formaldehyde):
Moderate
53.7/100
PM1 (ultrafine particles):
Poor
73.0/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 23:00
AQI:
Very poor
92.8/100
PM2.5 (fine particles):
Very poor
80.2/100
PM10 (coarse particles):
Moderate
55.9/100
NO2 (nitrogen dioxide):
Poor
64.6/100
O3 (ozone):
Fair
39.2/100
SO2 (sulfur dioxide):
Moderate
54.7/100
CO (carbon monoxide):
Good
4.2/100
HCHO (formaldehyde):
Poor
62.5/100
PM1 (ultrafine particles):
Very poor
92.8/100
Other Landmarks in Alberton
Frequently Asked Questions
Is air quality bad in Vosloorus Extension right now?
On 20 September 2026, overall air quality in Vosloorus Extension is poor. AQI is the main air quality indicator at 73.0/100. Pollution peaks around 11:00 PM (PM1: 73.0/100).
Will air quality be worse tomorrow in Vosloorus Extension?
On 21 September 2026, air quality conditions in Vosloorus Extension will be worse than today, with AQI forecast at very poor at 92.8/100. Pollution peaks around 11:00 PM (PM1: 92.8/100).
When is air pollution at its worst in Vosloorus Extension?
Winter is the tricky season for air quality at Vosloorus Extension, with calm mornings letting emissions from government, finance, and commercial operations build up under a typical Highveld inversion. Once the rainy season starts around November, conditions generally improve and stay that way into early autumn. This is a familiar pattern across much of the Highveld.
Are air quality levels in Vosloorus Extension 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: 20 September 2026 at 14:33 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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