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The article discusses the results of studying the marginal filter of the Pregolya River in different seasons. Three transformation stages of dispersed sedimentary material are distinguished: gravitational, colloidal–sorption, and biogenic. Study of the chemical composition of suspended particulate matter at all marginal filter stages showed variation in the composition of suspension-forming elements, as well as strong enrichment of suspended particulate matter in a number of trace elements, which can be explained by pollution. Matrix correlation analysis of chemical element concentrations revealed strong links between elements.
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Lukashin et al. (2018) studied this question.
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