Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 302317
Title The TOXSWA model concept
Author(s) Adriaanse, P.I.
Source In: Development of the TOXSWA model for predicting the behaviour of pesticides in surface water : proceedings of a workshop, held on November 8, 1994 at Wageningen, The Netherlands / Crum, S.J.H., Deneer, J.W., - p. 13 - 31.
Department(s) Winand Staring Centre for Integrated Land, Soil and Water Research
Publication type Contribution in proceedings
Publication year 1995
Keyword(s) lucht - luchtverontreiniging - kanalen - hygiëne - uitspoelen - modellen - persistentie - pesticidenresiduen - pesticiden - gewasbescherming - onderzoek - rivieren - bodem - waterlopen - oppervlaktewater - water - waterverontreiniging - waterkwaliteit - air - air pollution - canals - hygiene - leaching - models - persistence - pesticide residues - pesticides - plant protection - research - rivers - soil - streams - surface water - water pollution - water quality
Categories Plant and Crop Protection (General)
Abstract The TOXSWA model has been developed to estimate exposure concentrations of aquatic organisms to pesticides. TOXSWA describes the fate of pesticides entering field ditches by drift or atmospheric deposition, by surface run-off, or by drainage or leaching through the soil. TOXSWA considers four processes: transport, transformation, sorption and volatilization. The two mass conservation equations for the water layer and the sediment are solved with a variable weight finite-difference method. A calculation example shows that, for pesticides with high sorption capacities, sorption to macrophytes may considerably lower the exposure concentration, but the concentration will continue longer.
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