Worst air pollution Three Rivers - Vereeniging, today and tomorrow
Today (9 August): Air quality in Three Rivers is fair. PM10 and HCHO are fair; AQI, PM2.5, NO2, O3, SO2, and PM1 are medium; CO is good. Pollution peaks around 2:00 AM (PM1: 59.9/100).
Tomorrow (10 August 2026): Air quality in Three Rivers is fair. AQI worsens to fair; PM2.5 increases to fair; PM10 decreases to good; NO2 increases to fair; O3 decreases to good; SO2 increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 AM (SO2: 33.1/100). Airmine updates local air quality forecasts four times daily.
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Three Rivers lies roughly 50 km south of Johannesburg. Three Rivers's position on the open Highveld plateau means vehicle traffic and government, finance, and commercial operations drive most local emissions, with winter inversions occasionally trapping pollution close to the ground. Summer brings stronger winds and regular thunderstorms that generally keep particulate levels lower across the surrounding area. It's a fairly standard picture for this part of the plateau.
Today - 9 August | Pollution peaks at 02:00
AQI:
Medium
59.9/100
PM2.5 (fine particles):
Medium
52.3/100
PM10 (coarse particles):
Fair
25.0/100
NO2 (nitrogen dioxide):
Medium
53.8/100
O3 (ozone):
Medium
57.2/100
SO2 (sulfur dioxide):
Medium
57.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
39.6/100
PM1 (ultrafine particles):
Medium
59.9/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 00:00
AQI:
Fair
33.1/100
PM2.5 (fine particles):
Fair
20.3/100
PM10 (coarse particles):
Good
5.4/100
NO2 (nitrogen dioxide):
Fair
20.5/100
O3 (ozone):
Good
18.7/100
SO2 (sulfur dioxide):
Fair
33.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
21.3/100
PM1 (ultrafine particles):
Fair
26.2/100
Other Landmarks in Vereeniging
Sports venues in Vereeniging
Frequently Asked Questions
Is air quality bad in Three Rivers right now?
On 9 August 2026, overall air quality in Three Rivers is fair. HCHO is the main pollutant at 39.6/100. Pollution peaks around 2:00 AM (PM1: 59.9/100).
Will air quality be worse tomorrow in Three Rivers?
On 10 August 2026, air quality conditions in Three Rivers will be similar to today, with AQI forecast at fair at 33.1/100. Pollution peaks around 12:00 AM (SO2: 33.1/100).
When is air pollution at its worst in Three Rivers?
Winter is when air quality dips most at Three Rivers, as still mornings allow emissions from government, finance, and commercial operations to concentrate under a Highveld inversion layer. From spring onward, increasing rain and wind generally keep conditions clearer through summer and into early autumn, a seasonal pattern typical of the wider Highveld plateau.
Are air quality levels in Three Rivers 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: 10 August 2026 at 02:34 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.
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