Worst air pollution Middelburg, today and tomorrow
Today (16 July): Air quality in Middelburg is poor. AQI and SO2 are poor; PM2.5 and PM1 are fair; NO2 is medium; PM10, O3, CO, and HCHO are good. Pollution peaks around 4:00 PM (SO2: 75.2/100).
Tomorrow (17 July 2026): Air quality in Middelburg is poor. PM2.5 decreases to medium; O3 increases to fair; PM1 decreases to medium; all other pollutants stay as today. Pollution peaks around 12:00 PM (SO2: 76.7/100). 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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Middelburg's air quality reflects the Mpumalanga Highveld coal region at around 1,500 metres, with vehicle traffic on the N4 and N11 and the surrounding coal mining and Steel Valley industrial operations, including the Columbus Stainless steelworks, generating elevated PM2.5 and SO₂. Winter Highveld temperature inversions concentrate emissions across the plateau, while summer thunderstorms and stronger winds generally aid dispersal.
Today - 16 July | Pollution peaks at 16:00
AQI:
Poor
75.2/100
PM2.5 (fine particles):
Fair
26.7/100
PM10 (coarse particles):
Good
7.3/100
NO2 (nitrogen dioxide):
Medium
56.2/100
O3 (ozone):
Good
17.8/100
SO2 (sulfur dioxide):
Poor
75.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.6/100
PM1 (ultrafine particles):
Fair
33.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Poor
76.7/100
PM2.5 (fine particles):
Medium
41.2/100
PM10 (coarse particles):
Good
12.8/100
NO2 (nitrogen dioxide):
Medium
54.2/100
O3 (ozone):
Fair
22.2/100
SO2 (sulfur dioxide):
Poor
76.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.4/100
PM1 (ultrafine particles):
Medium
44.3/100
Pollen forecast in Middelburg
View pollen forecastFrequently Asked Questions
Is air quality bad in Middelburg right now?
On 16 July 2026, overall air quality in Middelburg is poor. AQI is the main air quality indicator at 75.2/100. Pollution peaks around 4:00 PM (SO2: 75.2/100).
Will air quality be worse tomorrow in Middelburg?
On 17 July 2026, air quality conditions in Middelburg will be similar to today, with AQI forecast at poor at 76.7/100. Pollution peaks around 12:00 PM (SO2: 76.7/100).
When is air pollution at its worst in Middelburg?
At Middelburg, 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 Middelburg 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