Shannon lakes, Ireland
Place page for 9 named lakes in Ireland. Official surface phosphorus, chlorophyll-a, and Secchi — not a swim-safety class and not a LakeQuality letter.
Lake map
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Named lakes
| Lake | Place | Total phosphorus | Chlorophyll-a | Secchi | Year |
|---|---|---|---|---|---|
| Lough Allen | Leitrim | 16 µg/L | 3.4 µg/L | — | 2022 |
| Lough Boderg | Roscommon | 23 µg/L | 4.9 µg/L | — | 2022 |
| Lough Bofin | Leitrim | 28 µg/L | 4.0 µg/L | — | 2022 |
| Lough Derg | Tipperary | 22 µg/L | 2.9 µg/L | — | 2023 |
| Lough Derg | Clare | 17 µg/L | 17 µg/L | — | 2022 |
| Lough Forbes | Longford | 24 µg/L | 3.0 µg/L | — | 2022 |
| Lough Gara | Sligo | 29 µg/L | 1.4 µg/L | — | 2022 |
| Lough Key | Roscommon | 19 µg/L | 4.2 µg/L | — | 2022 |
| Lough Ree | Roscommon | 16 µg/L | 3.5 µg/L | — | 2022 |
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