SmogRank / World / Singapore / November 2025

Most polluted cities in Singapore, November 2025

1 city in Singapore ranked by their average PM2.5 over the 30 days. Worst: Queenstown Estate at 15.1 µg/m³, #575 of 2,370 cities in the world. A city needs measurements on 70% of the days to be ranked.

  1. 1Queenstown Estatelow-cost sensors
    62
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). 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, November 2025 · Singapore now

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SmogRank, most polluted cities in Singapore, PM2.5, November 2025, smogrank.com/sg/history/2025-11 (accessed 2 Oct 2026).

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