Worst air pollution Ermelo, today and tomorrow
Today (9 August): Air quality in Ermelo is fair. PM1 is fair; AQI, O3, and SO2 are medium; PM2.5, PM10, NO2, CO, and HCHO are good. Pollution peaks around 4:00 PM (O3: 57.7/100).
Tomorrow (10 August 2026): Air quality in Ermelo is fair. AQI worsens to fair; O3 decreases to good; SO2 increases to fair; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 12:00 AM (SO2: 23.6/100). 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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Ermelo's air quality reflects the Mpumalanga Highveld position at 1,612 metres near the Vaal Dam, with vehicle traffic on the N17 and surrounding agricultural operations contributing local sources. Winter Highveld temperature inversions concentrate vehicle and residential emissions, while the proximity to the Mpumalanga coal-fired power station corridor — including the Duvha and Kendal stations — elevates regional background SO₂ and PM2.5 significantly above typical South African non-industrial levels.
Today - 9 August | Pollution peaks at 16:00
AQI:
Medium
57.7/100
PM2.5 (fine particles):
Good
18.6/100
PM10 (coarse particles):
Good
5.0/100
NO2 (nitrogen dioxide):
Good
13.8/100
O3 (ozone):
Medium
57.7/100
SO2 (sulfur dioxide):
Medium
41.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.6/100
PM1 (ultrafine particles):
Fair
24.4/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 00:00
AQI:
Fair
23.6/100
PM2.5 (fine particles):
Good
12.9/100
PM10 (coarse particles):
Good
3.5/100
NO2 (nitrogen dioxide):
Good
10.4/100
O3 (ozone):
Good
19.0/100
SO2 (sulfur dioxide):
Fair
23.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.9/100
PM1 (ultrafine particles):
Good
17.9/100
Pollen forecast in Ermelo
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Frequently Asked Questions
Is air quality bad in Ermelo right now?
On 9 August 2026, overall air quality in Ermelo is fair. PM1 is the main pollutant at 24.4/100. Pollution peaks around 4:00 PM (O3: 57.7/100).
Will air quality be worse tomorrow in Ermelo?
On 10 August 2026, air quality conditions in Ermelo will be similar to today, with AQI forecast at fair at 23.6/100. Pollution peaks around 12:00 AM (SO2: 23.6/100).
When is air pollution at its worst in Ermelo?
At Ermelo, 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 Ermelo 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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