SmogRank / World / Ireland / August 2025

Most polluted cities in Ireland, August 2025

18 cities in Ireland ranked by their average PM2.5 over the 31 days. Worst: Ennis at 8.4 µg/m³, #1,492 of 2,503 cities in the world. Cleanest: Greystones at 5.7. A city needs measurements on 70% of the days to be ranked.

← Ennis 8.4
Every city in Ireland ranked for August 2025, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1EnnisMunster
    1
  2. 2SligoConnacht
    1
  3. 3TraleeMunster
    1
  4. 4LimerickMunster
    1
  5. 4GalwayConnacht
    1
  6. 6CorkMunster
    1
  7. 7WaterfordMunster
    1
  8. 8DublinLeinster
    1
  9. 8AthloneLeinster
    1
  10. 10PortlaoiseLeinster
    1
  11. 11DroghedaLeinster
    1
  12. 12Dún LaoghaireLeinster
    1
  13. 13WexfordLeinster
    1
  14. 14LetterkennyUlster
    1
  15. 15LeixlipLeinster
    1
  16. 16NaasLeinster
    1
  17. 17Cluain MealaMunster
    1
  18. 18GreystonesLeinster
    1
Low risk1–3
Moderate risk4–6
High risk7–10
Very high risk10+

Canada's AQHI+ for PM2.5 (1 point per 10 µg/m³), which is defined on hourly values. 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, August 2025 · Ireland now

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SmogRank, most polluted cities in Ireland, PM2.5, August 2025, smogrank.com/ie/history/2025-08 (accessed 2 Oct 2026).

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