Estimation of emission fluxes from a horizontal flux budget method, exemplified with determination of pesticide volatilization

Niels Otto Jensen, Helle Vibeke Andersen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The paper describes an experimental set-up designed to measure the volatilization of different pesticides after application under full-scale field conditions. The pesticides were sprayed around the circumference of a circle and measurements of meteorology and air concentrations of pesticides were taken in the centre of the circle. The paper describes how the dimensions like the radius of the circle and height of the mast in the experimental set-up are found from theoretical considerations. A method to increase the confidence of the flux calculations is described. It utilizes that several substances were applied simultaneously and that a certain parameter in the fitted concentration profiles depends on turbulence only and thus have the same value for all substances. The design was used during two campaigns, conducted on the same location, one during fall on bare soil and one in spring on a barley crop. (C) 2008 Elsevier Ltd. All rights reserved.
    Original languageEnglish
    JournalEnvironmental Pollution
    Volume156
    Issue number1
    Pages (from-to)193-198
    ISSN0269-7491
    DOIs
    Publication statusPublished - 2008

    Keywords

    • Horizontal flux budget method
    • Emission
    • Volatilization
    • Pesticides

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