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The water ecosystem of the Vyshny Volochek Reservoir is characterized based on the study of the distribution of heavy metals speciations in the solid phase and pore waters of bottom sediments. Using the sequential extraction procedure, it is shown that Mn is mainly present in exchangeable and carbonate-bound forms; significant roles for Fe, Zn, Pb, and Co are played by forms that are bound to iron...
Określono ruchliwość wybranych metali ciężkich w osadach dennych pobranych z rzeki Utraty. Do procesu ekstrakcji sekwencyjnej wg Tessiera wykorzystano powietrznie suchy osad o średnicy ziaren >90 žm. W poszczególnych ekstraktach oznaczano zawartość Cu, Pb, Zn, Cd wykorzystując technikę FAAS. Spośród badanych metali w osadach dennych największą biodostępnością charakteryzował się metal o największej...
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