Environmental Science
2 years ago

New study reveals key depth for phosphorus release in polluted lakes

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Revista Internacional de Contaminación Ambiental
Effective sediment depth for phosphorus release in a monomictic eutrophic lake
Henri Márquez‐Pacheco, Anne Merrild Hansen

Paper Summary

Sediments in eutrophic lakes hold a lot of phosphorus, which can end up in the water. Scientists studied a lake to see where this phosphorus comes from. They found that the top 15 cm of sediment release the most phosphorus. This layer has more phosphorus stuck to iron, aluminum, and organic matter. As you go deeper, less phosphorus is released. So, in this lake, the top 15 cm of sediment is where the phosphorus comes from.

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