SmogRank / World / Ireland / March 2025

Most polluted cities in Ireland, March 2025

2 cities in Ireland ranked by their average PM2.5 over the 31 days. Worst: Dún Laoghaire at 12.5 µg/m³, #1,079 of 2,500 cities in the world. Cleanest: Dublin at 12.4. A city needs measurements on 70% of the days to be ranked.

  1. 1Dún LaoghaireLeinster
    57
  2. 2DublinLeinster
    57
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, March 2025 · Ireland now

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SmogRank, most polluted cities in Ireland, PM2.5, March 2025, smogrank.com/ie/history/2025-03 (accessed 2 Oct 2026).

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