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Presentation of preliminary results of an experiment on the sorption of metals on the surface of microplastic particles in the natural waters of Karelia

Limnology and Freshwater Biology 2020 1 citation ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Natalia Kulik, Natalia Efremenko, V. Kovalesky, Viсtoria Rozhkova

Summary

This preliminary Russian study tested how metal ions sorb onto microplastic particle surfaces in natural water samples from the Karelian region. Researchers found that metal sorption varied by element, microplastic size, and water organic matter content. The results suggest that microplastics in natural freshwater can accumulate metal pollutants, though the extent depends on local water chemistry.

The paper presents preliminary results of a model experiment on the sorption of metals on the surface of microplastic particles (MP) in the conditions of natural waters of Karelia. It was found that the interaction of the studied metals with MP particles is different and largely depends on the concentration of elements and the content of organic matter in the studied aqueous samples, the size of the microplastic particles. The results showed that the sorption of metals on the surface of the particles increases with time, while iron will be one of the first to be sorbed, since its content is an order or two higher than all other metals.

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