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LakeQuality

Lake map

Map shows 2 lakes with coordinates

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Named lakes

LakePlaceTotal phosphorusChlorophyll-aSecchiYear
宍道湖Shimane45 µg/L—1.5 m2025
神西湖Shimane90 µg/L—0.9 m2025

Frequently asked questions

How many named lakes are in Shimane?
2 named lakes in Shimane, Japan, have official phosphorus and Secchi, 2025. Values are the authority's measurements, shown as reported.
Where do the Shimane readings come from?
Shimane pages show official phosphorus, chlorophyll-a, and Secchi from the publishing authority, with the year each was taken.

Official surface phosphorus, chlorophyll-a, and/or Secchi. Not a LakeQuality A–F grade — the authority does not publish a letter on this scale.