Podrobnosti záznamu

    Experimental Evidence for Mobility/Immobility of Metals in Peat
    Adamová, Marie
    Komárek, Arnošt
    Krachler, Michael
    Novák, Martin
    Pacherová, Petra
    Přechová, Eva
    Štěpánová, Markéta
    Voldřichová, Petra
    Zemanová, Leona
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Environmental Science & Technology
    Roč. 45, č. 17
Výraz tezauru
    peat, archive, metal, mobility, lead, copper, zinc, iron, manganese, 210Pb dating
Klíčové slovo
Abstrakt (anglicky)
   Peat bogs are believed to record historical changes in atmospheric pollution. Suspected postdepositional mobility of trace elements, however, hinders the usefulness of peat bogs as pollution archives. To lower this uncertainty, we quantified the mobility of six trace metals in peat during an 18-month field manipulation. Peat transplant experiment was conducted between a heavily polluted and a relatively unpolluted peatland in the Czech Republic. A strikingly different behavior was observed for two groups of elements. Elements of group I, Fe and Mn, adjusted their abundances and vertical patterns to the host site, showing an extremely high degree of mobility. In contrast, elements of group II, Pb, Cu, Zn, and Ti, preserved their original vertical patterns at the host site, showing a high degree of immobility. Our experimental results suggest that not just lead, but also copper and zinc concentration profiles in peat are a reliable archive of temporal pollution changes within a wide pH r
   ange (2.5-5.8).
    Česká geologická služba
Kód přispěvatele
    ČGS (RIV)
Zdrojový formát
Datum importu
    15. 10. 2014