TOXSWA calculates metabolites entering FOCUS streams

W.H.J. Beltman; P.I. Adriaanse

Abstract

The FOCUS_TOXSWA model simulates exposure of the aquatic ecosystem in 10 FOCUS scenarios used in the registration procedure at EU level. A new feature of version 4.4.2 is the formation of metabolites in water and in sediment. Recently a proposal has been developed in cooperation between members of the FOCUS Version Control group on how to include the formation of metabolites in water in the 100 ha upstream catchment of the stream scenarios. The fraction of metabolite formed from the parent in the catchment is used as upper boundary for the stream. Calculation of the maximum fraction is based upon the DegT50 values of parent and of metabolite. Residence times of the parent in the upstream catchment, during which he metabolite is formed, are compared to the time needed to form this maximum fraction and next, the fraction that enters the stream is calculated. The maximum fraction of metabolite formed is shown to be independent of the water temperature in the scenario.

Original language	English
Title of host publication	Proceedings of the 13th IUPAC International Congress on Pesticide Chemistry
Pages	202-202
Publication status	Published - 2014
Event	13th IUPAC : Crop, Environment, and Public Health Protection: Technologies for a Changing World, San Francisco, USA - Duration: 10 Aug 2014 → 14 Aug 2014

Conference

Conference	13th IUPAC : Crop, Environment, and Public Health Protection: Technologies for a Changing World, San Francisco, USA
Period	10/08/14 → 14/08/14

Blootstelling van waterorganismen in kader van NL en EU toelating (BO-43-102.01-002, BO-43-011.01-002, BO-20-002-002, BO-12.03-019-002)
Adriaanse, P.
1/01/12 → 31/12/23
Project: EZproject

Cite this

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title = "TOXSWA calculates metabolites entering FOCUS streams",

abstract = "The FOCUS_TOXSWA model simulates exposure of the aquatic ecosystem in 10 FOCUS scenarios used in the registration procedure at EU level. A new feature of version 4.4.2 is the formation of metabolites in water and in sediment. Recently a proposal has been developed in cooperation between members of the FOCUS Version Control group on how to include the formation of metabolites in water in the 100 ha upstream catchment of the stream scenarios. The fraction of metabolite formed from the parent in the catchment is used as upper boundary for the stream. Calculation of the maximum fraction is based upon the DegT50 values of parent and of metabolite. Residence times of the parent in the upstream catchment, during which he metabolite is formed, are compared to the time needed to form this maximum fraction and next, the fraction that enters the stream is calculated. The maximum fraction of metabolite formed is shown to be independent of the water temperature in the scenario.",

author = "W.H.J. Beltman and P.I. Adriaanse",

year = "2014",

language = "English",

pages = "202--202",

booktitle = "Proceedings of the 13th IUPAC International Congress on Pesticide Chemistry",

note = "13th IUPAC : Crop, Environment, and Public Health Protection: Technologies for a Changing World, San Francisco, USA ; Conference date: 10-08-2014 Through 14-08-2014",

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T1 - TOXSWA calculates metabolites entering FOCUS streams

AU - Beltman, W.H.J.

AU - Adriaanse, P.I.

PY - 2014

Y1 - 2014

N2 - The FOCUS_TOXSWA model simulates exposure of the aquatic ecosystem in 10 FOCUS scenarios used in the registration procedure at EU level. A new feature of version 4.4.2 is the formation of metabolites in water and in sediment. Recently a proposal has been developed in cooperation between members of the FOCUS Version Control group on how to include the formation of metabolites in water in the 100 ha upstream catchment of the stream scenarios. The fraction of metabolite formed from the parent in the catchment is used as upper boundary for the stream. Calculation of the maximum fraction is based upon the DegT50 values of parent and of metabolite. Residence times of the parent in the upstream catchment, during which he metabolite is formed, are compared to the time needed to form this maximum fraction and next, the fraction that enters the stream is calculated. The maximum fraction of metabolite formed is shown to be independent of the water temperature in the scenario.

AB - The FOCUS_TOXSWA model simulates exposure of the aquatic ecosystem in 10 FOCUS scenarios used in the registration procedure at EU level. A new feature of version 4.4.2 is the formation of metabolites in water and in sediment. Recently a proposal has been developed in cooperation between members of the FOCUS Version Control group on how to include the formation of metabolites in water in the 100 ha upstream catchment of the stream scenarios. The fraction of metabolite formed from the parent in the catchment is used as upper boundary for the stream. Calculation of the maximum fraction is based upon the DegT50 values of parent and of metabolite. Residence times of the parent in the upstream catchment, during which he metabolite is formed, are compared to the time needed to form this maximum fraction and next, the fraction that enters the stream is calculated. The maximum fraction of metabolite formed is shown to be independent of the water temperature in the scenario.

M3 - Abstract

SP - 202

EP - 202

BT - Proceedings of the 13th IUPAC International Congress on Pesticide Chemistry

T2 - 13th IUPAC : Crop, Environment, and Public Health Protection: Technologies for a Changing World, San Francisco, USA

Y2 - 10 August 2014 through 14 August 2014

ER -

TOXSWA calculates metabolites entering FOCUS streams

Abstract

Conference

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Projects

Blootstelling van waterorganismen in kader van NL en EU toelating (BO-43-102.01-002, BO-43-011.01-002, BO-20-002-002, BO-12.03-019-002)

Cite this