SmogRank / World / South Africa / May 2025

Most polluted cities in South Africa, May 2025

1 city in South Africa ranked by their average PM2.5 over the 31 days. Worst: Shakaskraal at 23.2 µg/m³, #211 of 2,451 cities in the world. A city needs measurements on 70% of the days to be ranked.

The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

All cities in the world, May 2025 · South Africa now

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SmogRank, most polluted cities in South Africa, PM2.5, May 2025, smogrank.com/za/history/2025-05 (accessed 2 Oct 2026).

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