SmogRank / World / Africa / South Africa / Gauteng

Most polluted cities in Gauteng, South Africa

5 measured cities, last 7 days; 3 above the WHO 24-hour guideline. Worst: Vereeniging at 27.9 µg/m³, #99 in the world.

North West: 2 measured citiesKwaZulu-Natal: 5 measured citiesFree State: 1 measured cityLimpopo: 6 measured citiesMpumalanga: 6 measured citiesGauteng: 5 measured cities#5 Thembisa: 12.2 µg/m³#4 Centurion: 12.4 µg/m³#3 Tokoza: 19.4 µg/m³#2 Evaton: 21.6 µg/m³#1 Vereeniging: 27.9 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
← Vereeniging 27.9 µg/m³ 15 µg/m³ WHO 24-hour guideline0
Every measured city in Gauteng, South Africa, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1Vereeniging 3▼13
  2. 2Evaton 3
  3. 3Tokoza 2
  4. 4Centurion 2
  5. 5Thembisa 2
Low risk1–3
Moderate risk4–6
High risk7–10
Very high risk10+

Canada's AQHI+ for PM2.5 (1 point per 10 µg/m³), which is defined on hourly values. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Estimated: cities without a monitor

Gauteng cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Pretoria≈ 15 µg/m³Low risk
Soweto≈ 20 µg/m³Low risk
Benoni≈ 16 µg/m³Low risk
Boksburg≈ 15 µg/m³Low risk
Krugersdorp≈ 14 µg/m³Low risk
Randburg≈ 17 µg/m³Low risk
Roodepoort≈ 17 µg/m³Low risk
Brakpan≈ 15 µg/m³Low risk
Germiston≈ 20 µg/m³Low risk
Carletonville≈ 13 µg/m³Low risk
Westonaria≈ 17 µg/m³Low risk
Nigel≈ 15 µg/m³Low risk
Randfontein≈ 14 µg/m³Low risk
Alberton≈ 20 µg/m³Low risk
Mabopane≈ 15 µg/m³Low risk
Heidelberg≈ 15 µg/m³Low risk
Edenvale≈ 17 µg/m³Low risk
Bronkhorstspruit≈ 16 µg/m³Low risk
Cullinan≈ 13 µg/m³Low risk
Midstream≈ 17 µg/m³Low risk
Verena≈ 16 µg/m³Low risk
Bagale≈ 14 µg/m³Low risk

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SmogRank, most polluted cities in Gauteng, South Africa, PM2.5, last 7 days to 2 Oct 2026, 06:00 UTC, smogrank.com/za/region/gauteng?w=7d.

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Updated 2026-10-02 06:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the Canada AQHI+ PM2.5 sub-index.