SWASH Manual 5.3 : user’s guide version 5

F. van den Berg, W.H.J. Beltman, P.I. Adriaanse, A. de Jong, J.A. te Roller

Research output: Book/ReportReportProfessional


SWASH (Surface WAter Scenarios Help) assists the user in calculating pesticide exposure concentration in the EU FOCUS surface water scenarios. It is part of the exposure calculation procedure, being part of the obligatory evaluation procedure to place an active substance on List 1 according to EU Directive 91/414/EEC. SWASH encompasses: (i) FOCUS Drift Calculator, calculating pesticide entries through spray drift deposition, (ii) PRZM-3, calculating pesticide entries through run-off, (iii) MACRO, calculating pesticide entries through drainage and (iv) TOXSWA, calculating the behaviour of pesticides in small surface waters. It is linked to SPIN, a pesticide properties tool, and prepares input for the PRZM, MACRO and TOXSWA models. Via the SWASH shell the user can enter the shells of the other models to perform the PRZM or MACRO model runs needed to assess the fate of the substance in he FOCUS water body systems using TOXSWA.
Original languageEnglish
Place of PublicationWageningen
PublisherWOT Natuur & Milieu
Number of pages56
Publication statusPublished - 2015

Publication series

NameWOt-technical report
PublisherStatutory Research Tasks Unit for Nature & the Environment (WOT Natuur & Milieu)
ISSN (Print)2352-2747


  • pesticides
  • drainage
  • ditches
  • water quality
  • monitoring
  • models


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