SmogRank / Countries / Ireland
Most polluted cities in Ireland
25 measured cities ranked by PM2.5, last 7 days. Worst: Wexford at 7.6 µg/m³, #1063 in the world.
| # | City | µg/m³ | |
|---|---|---|---|
| 1 | Wexford Leinster | 7.6 | |
| 2 | Waterford Munster | 7.0 | |
| 3 | Cork Munster | 6.0 | |
| 4 | Galway Connacht | 5.8 | |
| 5 | Letterkenny Ulster | 5.7 | |
| 6 | Drogheda Leinster | 5.7 | |
| 7 | Carlow Leinster | 5.6 | |
| 8 | Dundalk Leinster | 5.4 | |
| 9 | Dublin Leinster | 5.4 | |
| 10 | Cluain Meala Munster | 5.4 | |
| 11 | Tralee Munster | 5.3 | |
| 12 | Greystones Leinster | 5.2 | |
| 13 | Ennis Munster | 5.2 | |
| 14 | Dún Laoghaire Leinster | 5.2 | |
| 15 | Navan Leinster | 5.0 | |
| 16 | Portlaoise Leinster | 4.9 | |
| 17 | Sligo Connacht | 4.8 | |
| 18 | Blanchardstown Leinster | 4.8 | |
| 19 | Tallaght Leinster | 4.7 | |
| 20 | Leixlip Leinster | 4.7 | |
| 21 | Limerick Munster | 4.6 | |
| 22 | Bray Leinster | 4.6 | |
| 23 | Athlone Leinster | 4.6 | |
| 24 | Swords Leinster | 4.5 | |
| 25 | Naas Leinster | 4.2 |
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data
Estimated: cities without a monitor
Ireland cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Douglas estimated | ≈ 6 µg/m³ |
| Droichead Nua estimated | ≈ 4 µg/m³ |
| An Muileann gCearr estimated | ≈ 4 µg/m³ |
| Sandyford estimated | ≈ 5 µg/m³ |
| Balbriggan estimated | ≈ 6 µg/m³ |
| Kilkenny estimated | ≈ 5 µg/m³ |
| Celbridge estimated | ≈ 5 µg/m³ |
| Finglas estimated | ≈ 5 µg/m³ |
| Ballincollig estimated | ≈ 6 µg/m³ |
| Carrigaline estimated | ≈ 6 µg/m³ |
| Rathfarnham estimated | ≈ 5 µg/m³ |
| Maynooth estimated | ≈ 5 µg/m³ |
| Malahide estimated | ≈ 6 µg/m³ |
| Tullamore estimated | ≈ 4 µg/m³ |
| Lucan estimated | ≈ 5 µg/m³ |
Regions
Updated 2026-10-01 13:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.