Worst air pollution Marks Park Sports Club - Johannesburg, today and tomorrow
Today (9 August): Air quality in Marks Park Sports Club is very poor. AQI, NO2, and SO2 are very poor; PM2.5, HCHO, and PM1 are poor; PM10 and O3 are medium; CO is good. Pollution peaks around 2:00 AM (SO2: 100/100).
Tomorrow (10 August 2026): Air quality in Marks Park Sports Club is fair. AQI improves to medium; PM2.5 decreases to fair; PM10 decreases to good; NO2 decreases to medium; O3 increases to fair; SO2 decreases to medium; HCHO decreases to fair; PM1 decreases to medium; all other pollutants stay as today. Pollution peaks around 9:00 AM (SO2: 53.3/100). Airmine updates local air quality forecasts four times daily.
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Marks Park Sports Club'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:
Very poor
100/100
PM2.5 (fine particles):
Poor
67.5/100
PM10 (coarse particles):
Medium
40.3/100
NO2 (nitrogen dioxide):
Very poor
84.3/100
O3 (ozone):
Medium
59.8/100
SO2 (sulfur dioxide):
Very poor
100/100
CO (carbon monoxide):
Good
0.1/100
HCHO (formaldehyde):
Poor
68.2/100
PM1 (ultrafine particles):
Poor
79.6/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 09:00
AQI:
Medium
53.3/100
PM2.5 (fine particles):
Fair
34.7/100
PM10 (coarse particles):
Good
10.0/100
NO2 (nitrogen dioxide):
Medium
45.4/100
O3 (ozone):
Fair
29.2/100
SO2 (sulfur dioxide):
Medium
53.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
26.8/100
PM1 (ultrafine particles):
Medium
40.7/100
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Frequently Asked Questions
Is air quality bad in Marks Park Sports Club right now?
On 9 August 2026, overall air quality in Marks Park Sports Club is very poor. AQI is the main air quality indicator at 100/100. Pollution peaks around 2:00 AM (SO2: 100/100).
Will air quality be worse tomorrow in Marks Park Sports Club?
On 10 August 2026, air quality conditions in Marks Park Sports Club will be better than today, with PM2.5 forecast at fair at 34.7/100. Pollution peaks around 9:00 AM (SO2: 53.3/100).
When is air pollution at its worst in Marks Park Sports Club?
Winter mornings bring the worst air quality for golfers at Marks Park Sports Club, as still conditions trap emissions from government, finance, and commercial operations close to the fairways. Conditions generally clear from November onward as the summer rainfall season sets in across the wider Highveld, a seasonal pattern typical of the wider Highveld plateau.
Are air quality levels in Marks Park Sports Club 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: 9 August 2026 at 20:27 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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