Worst air pollution Randfontein, today and tomorrow
Today (16 July): Air quality in Randfontein is very poor. AQI, NO2, and SO2 are very poor; PM2.5 and PM1 are poor; PM10, O3, and HCHO are fair; CO is good. Pollution peaks around 8:00 AM (SO2: 100/100).
Tomorrow (17 July 2026): Air quality in Randfontein is very poor. PM10 decreases to medium; HCHO decreases to medium; PM1 increases to very poor; all other pollutants stay as today. Pollution peaks around 9:00 AM (NO2: 100/100). 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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Randfontein's air quality reflects the West Rand gold mining corridor west of Johannesburg, with gold mine dust from the surrounding West Rand tailings dumps and vehicle traffic on the N14 generating elevated heavy metal particulates. Winter Highveld temperature inversions concentrate mining dust and vehicle emissions across the plateau, while the elevated 1,700-metre position aids background dispersal on windy summer days and the gold mine legacy dust represents the most distinctive local PM10 source.
Today - 16 July | Pollution peaks at 08:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Poor
61.1/100
PM10 (coarse particles):
Fair
33.7/100
NO2 (nitrogen dioxide):
Very poor
97.0/100
O3 (ozone):
Fair
30.6/100
SO2 (sulfur dioxide):
Very poor
100/100
CO (carbon monoxide):
Good
0.1/100
HCHO (formaldehyde):
Fair
37.9/100
PM1 (ultrafine particles):
Poor
71.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 09:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Poor
73.7/100
PM10 (coarse particles):
Medium
42.4/100
NO2 (nitrogen dioxide):
Very poor
100/100
O3 (ozone):
Fair
33.9/100
SO2 (sulfur dioxide):
Very poor
100/100
CO (carbon monoxide):
Good
0.1/100
HCHO (formaldehyde):
Medium
48.6/100
PM1 (ultrafine particles):
Very poor
86.8/100
Pollen forecast in Randfontein
View pollen forecastFrequently Asked Questions
Is air quality bad in Randfontein right now?
On 16 July 2026, overall air quality in Randfontein is very poor. AQI is the main air quality indicator at 100/100. Pollution peaks around 8:00 AM (SO2: 100/100).
Will air quality be worse tomorrow in Randfontein?
On 17 July 2026, air quality conditions in Randfontein will be similar to today, with AQI forecast at very poor at 100/100. Pollution peaks around 9:00 AM (NO2: 100/100).
When is air pollution at its worst in Randfontein?
At Randfontein, the poorest air quality usually occurs on still winter mornings from May to August, when smoke and vehicle emissions accumulate under a low temperature inversion typical of the Highveld plateau. From November onward, summer rains and afternoon winds generally restore clearer conditions that last through much of the warmer part of the year.
Are air quality levels in Randfontein 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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app