Podrobnosti záznamu

Název
    Thallium dynamics in contrasting light sandy soils-Soil vulnerability assessment to anthropogenic contamination
Autor
    Chrastný, Vladislav
    Drábek, Ondřej
    Drahota, Petr
    Galušková, Ivana
    Grygar, Tomáš
    Komárek, Michael
    Tejnecký, Václav
    Vaněk, Aleš
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Journal of Hazardous Materials
Svazek/č.
    Roč. 173, č. 1-3
Strany
    7
Rok
    2010
Výraz tezauru
    LMWOA
    mobility
    retention
    soil
    thallium
Klíčové slovo
    Anthropogenic
    Assessment
    Contamination
    Contrasting
    Dynamics
    Light
    Sandy
    Soils-Soil
    Thallium
    Vulnerability
Abstrakt (anglicky)
   The influence of different soil conditions and the presence of LMWOA (Low Molecular Weight Organic Acids) on anthropogenic Tl dynamics were discussed in this study. A shift from the "labile" to the residual fraction during the ageing was identified, indicating Tl incorporation into stable phases (e.g., illite and/or amorphous silicates). The increased water-soluble Tl concentration (1.8 fold, in maximum) after the split application of LMWOA was observed in all soils; partial dissolution of relatively "insoluble" Tl-bearing phases (silicates and eventually oxides) in the presence of LMWOA is suggested. Manganese(III,IV) oxides, illite and amorphous silicates were evaluated as the dominant phases responsible for Tl retention in the soils. In carbonate-rich soils, Tl coprecipitation with the newly formed carbonates seems to be an important factor influencing Tl release. Therefore, we suggest data on CEC, pHZPC and soil mineralogy to be critical for assessment of Tl behavior in soils.
Přispěvatel
    UK Praha, Přírodovědecká fakulta
Kód přispěvatele
    UK, PřF
Zdrojový formát
    R
Datum importu
    8. 8. 2012