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
    13
  2. 2SligoConnacht
    13
  3. 3TraleeMunster
    13
  4. 4LimerickMunster
    13
  5. 4GalwayConnacht
    13
  6. 6CorkMunster
    13
  7. 7WaterfordMunster
    12
  8. 8DublinLeinster
    12
  9. 8AthloneLeinster
    12
  10. 10PortlaoiseLeinster
    12
  11. 11DroghedaLeinster
    12
  12. 12Dún LaoghaireLeinster
    12
  13. 13WexfordLeinster
    12
  14. 14LetterkennyUlster
    12
  15. 15LeixlipLeinster
    10
  16. 16NaasLeinster
    10
  17. 17Cluain MealaMunster
    10
  18. 18GreystonesLeinster
    10
Good0–50
Satisfactory51–100
Moderate101–200
Poor201–300
Very poor301–400
Severe401+

India's National Air Quality Index (CPCB), PM2.5 sub-index. 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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