SmogRank / World / Croatia / October 2025

Most polluted cities in Croatia, October 2025

1 city in Croatia ranked by their average PM2.5 over the 31 days. Worst: Zagreb at 19.0 µg/m³, #289 of 2,296 cities in the world. A city needs measurements on 70% of the days to be ranked.

  1. 1Zagreblow-cost sensorsZagreb
    69
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, October 2025 · Croatia now

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SmogRank, most polluted cities in Croatia, PM2.5, October 2025, smogrank.com/hr/history/2025-10 (accessed 2 Oct 2026).

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