Worst air pollution Benoni, today and tomorrow
Today (30 August): Air quality in Benoni is moderate. AQI, O3, SO2, and HCHO are moderate; PM2.5, NO2, and PM1 are fair; PM10 and CO are good. Pollution peaks around 3:00 PM (O3: 56.1/100).
Tomorrow (31 August 2026): Air quality in Benoni is moderate. NO2 increases to moderate; O3 decreases to fair; HCHO decreases to fair; all other pollutants stay as today. Pollution peaks around 7:00 AM (SO2: 44.4/100). Airmine updates local air quality forecasts four times daily.
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Benoni's air quality reflects its position in the East Rand industrial corridor east of Johannesburg, with vehicle traffic on the N12 and the surrounding manufacturing and mining legacy operations contributing elevated PM2.5 alongside the broader East Rand industrial background. Winter Highveld temperature inversions concentrate vehicle and industrial emissions across the East Rand plateau, while the elevated 1,620-metre position aids background dispersal on windy summer days, and Benoni's manufacturing character maintains readings above the cleaner northern Johannesburg residential suburbs throughout the year.
Today - 30 August | Pollution peaks at 15:00
AQI:
Moderate
56.1/100
PM2.5 (fine particles):
Fair
23.8/100
PM10 (coarse particles):
Good
6.7/100
NO2 (nitrogen dioxide):
Fair
30.3/100
O3 (ozone):
Moderate
56.1/100
SO2 (sulfur dioxide):
Moderate
46.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Moderate
40.9/100
PM1 (ultrafine particles):
Fair
29.4/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 07:00
AQI:
Moderate
44.4/100
PM2.5 (fine particles):
Fair
29.0/100
PM10 (coarse particles):
Good
8.3/100
NO2 (nitrogen dioxide):
Moderate
42.0/100
O3 (ozone):
Fair
36.6/100
SO2 (sulfur dioxide):
Moderate
44.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
37.1/100
PM1 (ultrafine particles):
Fair
35.3/100
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Frequently Asked Questions
Is air quality bad in Benoni right now?
On 30 August 2026, overall air quality in Benoni is moderate. AQI is the main air quality indicator at 56.1/100. Pollution peaks around 3:00 PM (O3: 56.1/100).
Will air quality be worse tomorrow in Benoni?
On 31 August 2026, air quality conditions in Benoni will be similar to today, with AQI forecast at moderate at 44.4/100. Pollution peaks around 7:00 AM (SO2: 44.4/100).
When is air pollution at its worst in Benoni?
Air quality at Benoni is most likely to dip during the dry winter months from May to August, when temperature inversions trap vehicle and household emissions close to the ground on still mornings. Conditions improve markedly once the summer rains arrive from November, as stronger winds and regular thunderstorms clear the plateau air for the rest of the season.
Are air quality levels in Benoni 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: 30 August 2026 at 14:32 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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