| Rank | Location | Max recorded PM2.5 | |
|---|---|---|---|
| 1 | University College Cork | 588μg/m3 | |
| 2 | Newbridge, Co. Kildare | 257μg/m3 | |
| 3 | Mountrath, Co. Laois | 101μg/m3 | |
| 4 | Tralee Library, Co. Kerry | 77μg/m3 | |
| 5 | Enniscorthy, Co. Wexford | 51μg/m3 | |
| 6 | Achill Island, Co. Mayo | 51μg/m3 | 3 |
| 7 | Edenderry Library, Co. Offaly | 42μg/m3 | |
| 8 | Sandymount Green, Dublin 4 | 40μg/m3 | |
| 9 | Buncranna, Co. Donegal | 40μg/m3 | |
| 10 | Naas, Co. Kildare | 35μg/m3 |