Record details

Title
    Mobilization of arsenic from acid deposition - The Elbe River catchment, Czech Republic
Author
    Bůzek, František
    Čejková, Bohuslava
    Doušová, Barbora
    Jačková, Ivana
    Kadlecová, Renata
    Lněničková, Zdeňka
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Applied Geochemistry
Vol./nr.
    Roč. 33, č. 6
Pages
    14
Year
    2013
Thesaurus term
    mobilization, soil, arsenic, Elbe catchment
Keyword
    Acid
    Arsenic
    Catchment
    Czech
    Deposition
    Elbe
    Mobilization
    Republic
    River
Abstract (in english)
   Temporal changes of As concentration in surface waters were observed in some areas of the Czech Republic. Mobilized As originates from past atmospheric deposition. To understand the factors influencing As aqueous concentration and mobility the chemistry and runoff generation of a number of brooks, springs and rivers in the central part of the Elbe River catchment, Czech Republic, were monitored. Seasonal variations of As (from 0.5 to 10.5 lg L1), Fe (from 0.05 to 3.9 mg L1) and DOC (dissolved organic C - from 1.2 to 17.5 mg L1) were observed in monitored stream waters with maximum values of As and Fe in the summer months at pH values 7.6-7.8. The concentration of As in particles with a diameter ; 60 lm correlates with the Fe concentration. There is no correlation between Fe and As in filtered samples (;0.45 lm). The As concentration in stream water colloids depends on an increase in DOC concentration and a decrease in ionic strength. The DOC stabilizes As in solution and reduces its re
   -adsorption on Fe colloids and consequently As concentration in the stream increases.
Contributor
    Česká geologická služba
Contributor code
    ČGS (RIV)
Source format
    R
Import date
    15. 10. 2014