Local features of the geochemical spectra of trace elements in the snow dust of Tobolsk and Tyumen were revealed using a hierarchical cluster analysis of the normalized values of their content. Geochemical spectra of snow sampling points were studied in residential and industrial areas, as well as in significantly remote areas (conditional background). Four clusters were identified in Tobolsk and five in Tyumen, for each of them characteristic geochemical spectra and pollution sources were detected.
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