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Abstract <p>Characterization of changes in the biogeochemical parameters of the Arctic Lake Imandra in a long-term series of observations is provided. It is proven that along with a decrease in metal concentrations, the lake is becoming eutrophicated. The biogeochemical cycle of metals due to the oxidation of organic matter and the development of the redox cycle, which leads to the formation of high concentrations of metals in the surface layers of bottom sediments despite a decrease in the influx of polluted wastewater, is considered. A conclusion is made about the effects of secondary pollution of the near-bottom layers of water and the occurrence of diagenesis processes in technogenic sludge.</p>

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Biogeochemical Processes Development under Conditions of Pollution Reduction in the Arctic Lake Imandra

  • 期刊论文

  • 发表日期：

    2025年11月5日

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  • T. I. Moiseenko,
  • E. O. Liummens,
  • S. S. Soloveva

摘要

Abstract

Characterization of changes in the biogeochemical parameters of the Arctic Lake Imandra in a long-term series of observations is provided. It is proven that along with a decrease in metal concentrations, the lake is becoming eutrophicated. The biogeochemical cycle of metals due to the oxidation of organic matter and the development of the redox cycle, which leads to the formation of high concentrations of metals in the surface layers of bottom sediments despite a decrease in the influx of polluted wastewater, is considered. A conclusion is made about the effects of secondary pollution of the near-bottom layers of water and the occurrence of diagenesis processes in technogenic sludge.