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LakeQuality

Lakes in Loire-Atlantique, France

Find lakes in Loire-Atlantique: county page for 6 named lakes in France. 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

LakePlaceTotal phosphorusChlorophyll-aSecchiYear
Etang AumeeLoire-Atlantique30 µg/L1.9 µg/L0.9 m2023
Etang de la PoiteviniereLoire-Atlantique75 µg/L20 µg/L0.5 m2023
Etang de la ProvostiereLoire-Atlantique55 µg/L17 µg/L0.9 m2025
Etang de VioreauLoire-Atlantique25 µg/L14 µg/L0.9 m2022
Etang du Pont de FerLoire-Atlantique70 µg/L16 µg/L0.8 m2025
Lac de Grand LieuLoire-Atlantique240 µg/L89 µg/L0.3 m2025

Frequently asked questions

How many named lakes are in Loire-Atlantique?
6 named lakes in Loire-Atlantique, France, have official phosphorus, chlorophyll-a, and Secchi, 2022–2025. Values are measurements, not a LakeQuality A–F grade.
Does LakeQuality grade lakes in Loire-Atlantique?
No. Loire-Atlantique pages show official phosphorus, chlorophyll-a, and Secchi from the publishing authority. A letter on the LakeQuality scale would be an invention.

UNEP GEMS/Water Global Freshwater Quality Archive v3 (OPEN / CC BY 4.0). Surface total phosphorus, chlorophyll-a, and Secchi from 2016 onward. Not a LakeQuality A–F grade.