SmogRank / Countries / South Africa / March 2025
Most polluted cities in South Africa, March 2025
3 cities in South Africa ranked by their average PM2.5 over the 31 days. Worst: Vereeniging at 28.9 µg/m³, #205 of 2,218 cities in the world. Cleanest: Richards Bay at 5.6. A city needs measurements on 70% of the days to be ranked.
- 1Vereeniginglow-cost sensorsGauteng 28.9
- 2Shakaskraallow-cost sensorsKwaZulu-Natal 7.1
- 3Richards Baylow-cost sensorsKwaZulu-Natal 5.6
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+
All cities in the world, March 2025 · South Africa now
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SmogRank, most polluted cities in South Africa, PM2.5, March 2025, smogrank.com/za/history/2025-03 (accessed 2 Oct 2026).
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