| Rank | Location | Max recorded PM2.5 | |
|---|---|---|---|
| 1 | Cobh Carrignafoy, Co. Cork | 55μg/m3 | |
| 2 | Enniscorthy, Co. Wexford | 51μg/m3 | |
| 3 | Sandymount Green, Dublin 4 | 38μg/m3 | 6 |
| 4 | Dublin Port, Dublin 1 | 24μg/m3 | |
| 5 | Naas, Co. Kildare | 22μg/m3 | |
| 6 | Portlaoise, Co. Laois | 22μg/m3 | |
| 7 | Cavan Town | 21μg/m3 | |
| 8 | Ringsend, Dublin 4 | 19μg/m3 | |
| 9 | Ennis, Co. Clare | 18μg/m3 | |
| 10 | Tralee Library, Co. Kerry | 17μg/m3 |