Enrichment of Arctic lakes by elements due to aerbon pollution

Over the past century, anthropogenic emissions of elements in the environment have increased dramatically, which is associated with increasing volumes of metal production and dispersion. In the process of technogenic redistribution of elements, not only lithosphere is enriched, but also hydrosphere. Water systems are collectors of pollution entering the environment, which reflect changes in the geochemical cycles of elements. The Arctic regions are particularly vulnerable to increasing metal concentrations in the environment due to the low level of mass and energy exchanges in cold latitudes.

The purpose of this work was to determine the distribution characteristics of metals and metalloids in the waters of the Arctic region: the Kola Peninsula, Norilsk, the Yamalo-Nenets region.

The highest mineralization characterizes the waters of the Norilsk region, as a result of the proximity of the investigated lakes to the industrial zone. In the Kola North and in the north of Western Siberia there are acidified lakes with low pH values, high water clarity and high sulphate contents. Dystrophic lakes with high water color are characteristic of swampy watersheds. Influence of production of concern "Nickel" found in high concentrations of Ni and Cu in lakes Norilsk and Kola regions. Al, Cd, Cs, and Se contents are highest in the northern waters of the Arctic zone of the European Territory. For the waters of the lakes of the Kola and Norilsk regions, the high affinity of Ni, Cu, Co and other transition metals to sulfate contents has been proved, which can be explained by the technogenic emissions of copper-nickel plants

The work was performed in the framework of the grant of the Russian Foundation for Basic Research 18-05-60012