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Fluorescence spectroscopy to study dissolved organic matter interactions with agrochemicals applied in Swiss vineyards

Daouk, Silwan ; Frege, Carla ; Blanc, Nicolas ; Mounier, Stéphane ; Redon, Roland ; Merdy, Patricia ; Lucas, Yves ; Pfeifer, Hans-Rudolf

In: Environmental Science and Pollution Research, 2015, vol. 22, no. 12, p. 9284-9292

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    Titre
    • Fluorescence spectroscopy to study dissolved organic matter interactions with agrochemicals applied in Swiss vineyards
    Auteur
    • Daouk, Silwan. Institute of Earth Sciences, Faculty of Geosciences and Environment, University of Lausanne (UNIL), Géopolis, 1015, Lausanne, Switzerland
    • Frege, Carla. Institute of Earth Sciences, Faculty of Geosciences and Environment, University of Lausanne (UNIL), Géopolis, 1015, Lausanne, Switzerland
    • Blanc, Nicolas. Institute of Earth Sciences, Faculty of Geosciences and Environment, University of Lausanne (UNIL), Géopolis, 1015, Lausanne, Switzerland
    • Mounier, Stéphane. PROTEE Laboratory, Faculty of Geosciences, University of Toulon (USTV), BP20132, 83957, La Garde Cedex, France
    • Redon, Roland. PROTEE Laboratory, Faculty of Geosciences, University of Toulon (USTV), BP20132, 83957, La Garde Cedex, France
    • Merdy, Patricia. PROTEE Laboratory, Faculty of Geosciences, University of Toulon (USTV), BP20132, 83957, La Garde Cedex, France
    • Lucas, Yves. PROTEE Laboratory, Faculty of Geosciences, University of Toulon (USTV), BP20132, 83957, La Garde Cedex, France
    • Pfeifer, Hans-Rudolf. Institute of Earth Sciences, Faculty of Geosciences and Environment, University of Lausanne (UNIL), Géopolis, 1015, Lausanne, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Environmental Science and Pollution Research, 2015, vol. 22, no. 12, p. 9284-9292. Springer Berlin Heidelberg
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:332865
    Summary
    UV/Vis fluorescence spectroscopy was used to study the possible interactions of dissolved organic matter (DOM) with the herbicide glyphosate and copper-based fungicide used in vineyards. The study focused on the role of DOM in the transport of these micropollutants from parcels to surface waters (river, lake). Soil solution and river water samples were collected in the Lavaux vineyard area, western Switzerland. Their fluorescence excitation emission matrices (EEM) were decomposed using parallel factor (PARAFAC) analysis, and compared to their content in glyphosate and copper. PARAFAC analysis of EEM of both types of samples showed the contribution of protein-like and humic-like fluorophores. In soil water samples, complexes between fulvic-like and humic-like fluorophores of DOM, copper, and glyphosate were likely formed. In surface water, DOM-copper and glyphosate-copper interactions were observed, but not between glyphosate and DOM.