| Rank | Location | Max recorded PM2.5 | |
|---|---|---|---|
| 1 | Newbridge, Co. Kildare | 90μg/m3 | |
| 2 | Mountrath, Co. Laois | 59μg/m3 | |
| 3 | Achill Island, Co. Mayo | 54μg/m3 | 3 |
| 4 | Enniscorthy, Co. Wexford | 51μg/m3 | 2 |
| 5 | Killarney Anam Arts and Cultural Centre, Co. Kerry | 46μg/m3 | |
| 6 | Sandymount Green, Dublin 4 | 22μg/m3 | 1 |
| 7 | University College Cork | 22μg/m3 | |
| 8 | Abbeyfeale, Limerick | 18μg/m3 | 1 |
| 9 | Longford Town | 18μg/m3 | |
| 10 | Tralee Library, Co. Kerry | 17μg/m3 |