WIT Press


Development Of A Numerical Model To Predict Pesticide Volatilisation From Agricultural Soil

Price

Free (open access)

Paper DOI

10.2495/ENV000111

Volume

41

Pages

10

Published

2000

Size

836 kb

Author(s)

A. Nopper-Jaunky & H. Wortham

Abstract

A numerical model is described to predict the subsurface transport and volatilisation of pesticides incorporated in a soil. For this work, an analytical model, «the behaviour assessment model (BAM)» developed by Jury [1] was used as the starting point. Calculated volatilisation fluxes are compared with experimental data obtained with ^C-ring-labeled trifluralin from a volatilisation chamber. When the soil moisture is kept constant and when no water evaporation occurs, instantaneous equilibrium and simple linear adsorption isotherm

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