SmogRank / Countries / South Africa / 2025

Most polluted cities in South Africa, 2025

3 cities in South Africa ranked by their average PM2.5 over the 365 days; 3 above the WHO annual guideline (5.0 µg/m³). Worst: Vereeniging at 34.2 µg/m³, #96 of 2,131 cities in the world. Cleanest: Richards Bay at 10.0. A city needs measurements on 70% of the days to be ranked.

  1. 1Vereeniginglow-cost sensorsGauteng
    34.26.8×
  2. 2Shakaskraallow-cost sensorsKwaZulu-Natal
    15.93.2×
  3. 3Richards Baylow-cost sensorsKwaZulu-Natal
    10.02.0×
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, 2025 · South Africa now