| Rank | Location | Max recorded PM2.5 | |
|---|---|---|---|
| 1 | Abbeyfeale, Limerick | 53μg/m3 | |
| 2 | Tralee Library, Co. Kerry | 50μg/m3 | 9 |
| 3 | Edenderry Library, Co. Offaly | 40μg/m3 | 1 |
| 4 | Ennis, Co. Clare | 38μg/m3 | |
| 5 | Longford Town | 37μg/m3 | 3 |
| 6 | Ennistymon, Co. Clare | 34μg/m3 | |
| 7 | Achill Island, Co. Mayo | 32μg/m3 | 5 |
| 8 | Dún Laoghaire, Co. Dublin | 30μg/m3 | 1 |
| 9 | Athlone Civic Centre & Library, Co. Westmeath | 28μg/m3 | |
| 10 | Wexford Opera House | 25μg/m3 |