Record details

Title
    Retention of copper originating from different fungicides in contrasting soil types
Author
    Balík, Jiří
    Chrastný, Vladislav
    Drahota, Petr
    Komárek, Michael
    Kubová, Karolina
    Száková, Jiřina
    Vaněk, Aleš
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Journal of Hazardous Materials
Vol./nr.
    Roč. 166, č. 2-3
Pages
    8
Year
    2009
Thesaurus term
    Bordeaux mixture
    copper oxychloride
    isotherm
    pesticide
    soil contamination
    sorption
Keyword
    Contrasting
    Copper
    Different
    Fungicides
    Originating
    Retention
    Soil
    Types
Abstract (in english)
   This work described the retention of Cu from two different commonly used pesticides, the Bordeaux mixture (CuSO4 + Ca(OH)2) and Cu-oxychloride (3Cu(OH)2?CuCl2), and from Cu(NO3)2 in contrasting soil types (Leptosol, Chernozem, Cambisol). Thermodynamic modeling showed that Cu speciation was similar in all fungicide solutions. However, the retention of Cu differed with the fungicide used (maximum retention from the Bordeaux mixture) which indicates that different retention processes occurred in the studied soils. The suggested mechanisms include: specific and non-specific adsorption (especially on soil organic matter), precipitation of newly formed phases, such as CuO, Cu(OH)2, Cu2(OH)3NO3, CuCO3/Cu2(OH)2CO3 and in the case of the Bordeaux mixture, precipitation of various Cu-hydroxysulfates. These phases were identified by the speciation model. The retention of fungicide-derived Cu in the studied soil types followed well the Freundlich isotherm and was directly controlled by the chemica
   l form of Cu.
Contributor
    UK Praha, Přírodovědecká fakulta
Contributor code
    UK, PřF
Source format
    R
Import date
    8. 8. 2012