Calculation of exposure concentrations for NL standard scenarios by the TOXSWA model

use of FOCUS_TOXSWA 4.4.3 software for plant protection products and their metabolitesin Dutch risk assessment for aquatic ecosystems

W.H.J. Beltman, C. Vink, A. Poot

Research output: Book/ReportReportProfessional

Abstract

TOXSWA calculates exposure concentrations of plant protection products in water and in sediment and is
used in risk assessment studies of aquatic organisms. Replacement of the TOXSWA 1.2 software by the more
recent FOCUS_TOXSWA software for use with the NL standard scenarios was investigated. The impact of the
replacement on the calculated exposure concentrations of parent compounds and of metabolites was
determined. For parent substances the calculated exposure concentrations of the two TOXSWA versions were
equivalent. Due to a different way to simulate metabolites, the differences in exposure concentrations
calculated by the two versions can be large. For the simulation of metabolite substances two approaches are
given to handle situations where the formation fraction is not known.
Original languageEnglish
Place of PublicationWageningen
PublisherStatutory Research Tasks Unit for Nature & the Environment (WOT Natuur & Milieu)
Number of pages46
DOIs
Publication statusPublished - 2016

Publication series

NameWOt-technical report
No.77
ISSN (Print)2352-2739

Fingerprint

aquatic ecosystem
risk assessment
software
metabolite
aquatic organism
replacement
exposure
plant protection product
calculation
sediment
simulation
water

Keywords

  • pesticides
  • models
  • exposure
  • exposure assessment
  • surface water
  • netherlands

Cite this

Beltman, W.H.J. ; Vink, C. ; Poot, A. / Calculation of exposure concentrations for NL standard scenarios by the TOXSWA model : use of FOCUS_TOXSWA 4.4.3 software for plant protection products and their metabolitesin Dutch risk assessment for aquatic ecosystems. Wageningen : Statutory Research Tasks Unit for Nature & the Environment (WOT Natuur & Milieu), 2016. 46 p. (WOt-technical report; 77).
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abstract = "TOXSWA calculates exposure concentrations of plant protection products in water and in sediment and isused in risk assessment studies of aquatic organisms. Replacement of the TOXSWA 1.2 software by the morerecent FOCUS_TOXSWA software for use with the NL standard scenarios was investigated. The impact of thereplacement on the calculated exposure concentrations of parent compounds and of metabolites wasdetermined. For parent substances the calculated exposure concentrations of the two TOXSWA versions wereequivalent. Due to a different way to simulate metabolites, the differences in exposure concentrationscalculated by the two versions can be large. For the simulation of metabolite substances two approaches aregiven to handle situations where the formation fraction is not known.",
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author = "W.H.J. Beltman and C. Vink and A. Poot",
year = "2016",
doi = "10.18174/401195",
language = "English",
series = "WOt-technical report",
publisher = "Statutory Research Tasks Unit for Nature & the Environment (WOT Natuur & Milieu)",
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Calculation of exposure concentrations for NL standard scenarios by the TOXSWA model : use of FOCUS_TOXSWA 4.4.3 software for plant protection products and their metabolitesin Dutch risk assessment for aquatic ecosystems. / Beltman, W.H.J.; Vink, C.; Poot, A.

Wageningen : Statutory Research Tasks Unit for Nature & the Environment (WOT Natuur & Milieu), 2016. 46 p. (WOt-technical report; No. 77).

Research output: Book/ReportReportProfessional

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AB - TOXSWA calculates exposure concentrations of plant protection products in water and in sediment and isused in risk assessment studies of aquatic organisms. Replacement of the TOXSWA 1.2 software by the morerecent FOCUS_TOXSWA software for use with the NL standard scenarios was investigated. The impact of thereplacement on the calculated exposure concentrations of parent compounds and of metabolites wasdetermined. For parent substances the calculated exposure concentrations of the two TOXSWA versions wereequivalent. Due to a different way to simulate metabolites, the differences in exposure concentrationscalculated by the two versions can be large. For the simulation of metabolite substances two approaches aregiven to handle situations where the formation fraction is not known.

KW - pesticides

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