Podrobnosti záznamu

Název
    Atmospheric deposition of beryllium in Central Europe: Comparison of soluble and insoluble fractions in rime and snow across a pollution gradient
Autor
    Bohdálková, Leona
    Erbanová, Lucie
    Komárek, Arnošt
    Krachler, Michael
    Míková, Jitka
    Novák, Martin
    Přechová, Eva
    Veselovský, František
    Voldřichová, Petra
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Science of the Total Environment
Svazek/č.
    Roč. 439, č. November
Strany
    9
Rok
    2012
Výraz tezauru
    Trace elements, Air pollution, Precipitation, Bioavailability, Source apportionment
Klíčové slovo
    Across
    Atmospheric
    Beryllium
    Central
    Comparison
    Deposition
    Europe
    Fractions
    Gradient
    Insoluble
    Pollution
    Rime
    Snow
    Soluble
Abstrakt (anglicky)
   Little is known about atmospheric input of beryllium (Be) into ecosystems, despite its highly toxic behavior. For three consecutive winters (2009-2011), we measured Be concentrations in horizontal deposition (rime) and vertical deposition (snow) at 10 remote mountain-top locations in the Czech Republic, Central Europe. Beryllium was determined both in filtered waters, and in HF digests of insoluble particles. Across the sites, soluble Be concentrations in rime were 7 times higher, compared to snow (6.1 vs. 0.9 ng?L-1). Rime scavenged the pollution-rich lower segments of clouds. The lowest Be concentrations were detected in the soluble fraction of snow. Across the sites, 34% of total Be deposition occurred in the form of soluble (bioavailable) Be, the rest were insoluble particles. Beryllium fluxes decreased in the order: vertical dry deposition insoluble>vertical dry deposition soluble>horizontal deposition soluble>vertical wet deposition insoluble>vertical wet deposition soluble>horiz
   ontal deposition insoluble. The average contributions of these Be forms to total deposition were 56, 21, 8, 7, 5 and 3%, respectively. Sites in the northeastwere more Be-polluted than the rest of the country with sources of pollution in industrial Silesia.
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (RIV)
Zdrojový formát
    R
Datum importu
    15. 10. 2014