SmogRank / Countries / Ireland / November 2025

Most polluted cities in Ireland, November 2025

8 cities in Ireland ranked by their average PM2.5 over the 30 days. Worst: Tralee at 11.5 µg/m³, #552 of 2,173 cities in the world. Cleanest: Drogheda at 5.0. A city needs measurements on 70% of the days to be ranked.

  1. 1TraleeMunster
    11.5
  2. 2WexfordLeinster
    9.8
  3. 3AthloneLeinster
    7.5
  4. 4Cluain MealaMunster
    5.5
  5. 5NaasLeinster
    5.4
  6. 6GreystonesLeinster
    5.3
  7. 7LeixlipLeinster
    5.2
  8. 8DroghedaLeinster
    5.0
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, November 2025 · Ireland now