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Your search keyword '"Van Der Linden, Ton"' showing total 22 results
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22 results on '"Van Der Linden, Ton"'

1. Conducting groundwater monitoring studies in Europe for pesticide active substances and their metabolites in the context of Regulation (EC) 1107/2009

Author

Gimsing, Anne Louise, Agert, Jutta, Baran, Nicole, Boivin, Arnaud, Ferrari, Federico, Gibson, Richard, Hammond, Lisa, Hegler, Florian, Jones, Russell L., König, Wolfram, Kreuger, Jenny, van der Linden, Ton, Liss, Dirk, Loiseau, Ludovic, Massey, Andy, Miles, Benedict, Monrozies, Laurent, Newcombe, Andy, Poot, Anton, Reeves, Graham L., Reichenberger, Stefan, Rosenbom, Annette E., Staudenmaier, Horst, Sur, Robin, Schwen, Andreas, Stemmer, Michael, Tüting, Wiebke, and Ulrich, Uta

Published
2019
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2. Thermal Crosstalk of X-Ray Transition-Edge Sensor Micro-Calorimeters Under Frequency Domain Multiplexing Readout

Author

Vaccaro, Davide, primary, Akamatsu, Hiroki, additional, Bruijn, Marcel, additional, Gottardi, Luciano, additional, den Hartog, Roland, additional, van der Kuur, Jan, additional, van der Linden, Ton, additional, Nagayoshi, Kenishiro, additional, Ravensberg, Kevin, additional, Ridder, Marcel, additional, Taralli, Emanuele, additional, de Wit, Martin, additional, Gao, Jian-Rong, additional, Hoogeveen, Ruud, additional, and den Herder, Jan-Willem, additional

Published
2022
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4. Towards a landscape scale management of pesticides: ERA using changes in modelled occupancy and abundance to assess long-term population impacts of pesticides

Author

Topping, Chris J., primary, Craig, Peter S., additional, de Jong, Frank, additional, Klein, Michael, additional, Laskowski, Ryszard, additional, Manachini, Barbara, additional, Pieper, Silvia, additional, Smith, Rob, additional, Sousa, José Paulo, additional, Streissl, Franz, additional, Swarowsky, Klaus, additional, Tiktak, Aaldrik, additional, and van der Linden, Ton, additional

Published
2015
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9. Assessing the efficiency of modiffied clays for decontamiate agricultural waste water by pesticide residues

Author

Suciu, Nicoleta (ORCID:0000-0002-3183-4169), Ferrari, Tommaso, Ferrari, Federico, Pardossi, Alberto, Van Der Linden, Ton, Egsmose, Mark, Trevisan, Marco (ORCID:0000-0002-4002-9946), Capri, Ettore (ORCID:0000-0003-0894-1991), Suciu, Nicoleta (ORCID:0000-0002-3183-4169), Ferrari, Tommaso, Ferrari, Federico, Pardossi, Alberto, Van Der Linden, Ton, Egsmose, Mark, Trevisan, Marco (ORCID:0000-0002-4002-9946), and Capri, Ettore (ORCID:0000-0003-0894-1991)

Abstract

Assessing the efficiency of modiffied clays for decontamiate agricultural waste water by pesticide residues

Published
2011

10. Including spatial variability in Monte Carlo simulations of pesticide leaching.

Author

UCL - AGRO/MILA - Département des sciences du milieu et de l'aménagement du territoire, UCL - SC/GEO - Département de géologie et de géographie, Leterme, Bertrand, Vanclooster, Marnik, Van der Linden, Ton, Tiktak, Aaldrik, Rounsevell, Mark, UCL - AGRO/MILA - Département des sciences du milieu et de l'aménagement du territoire, UCL - SC/GEO - Département de géologie et de géographie, Leterme, Bertrand, Vanclooster, Marnik, Van der Linden, Ton, Tiktak, Aaldrik, and Rounsevell, Mark

Abstract

A methodology is developed to quantify the uncertainty in a pesticide leaching assessment arising from the spatial variability of non-georeferenced parameters. A Monte Carlo analysis of atrazine leaching is performed in the Dyle river catchment (Belgium) with pesticide half-life (DT50) and topsoil organic matter (OM) content as uncertain input parameters. Atrazine DT50 is taken as a non-georeferenced parameter, so that DT50 values sampled from the input distribution are randomly allocated in the study area for every simulation. Organic matter content is a georeferenced parameter, so that a fixed uncertainty distribution is given at each location. Spatially variable DT50 values are found to have a significant influence on the amount of simulated leaching. In the stochastic simulation, concentrations exist above the regulatory level of 0.1 microg L(-1), but virtually no leaching occurs in the deterministic simulation. It is axiomatic that substance parameters (DT50, sorption coefficient, etc.) are spatially variable, but pesticide registration procedures currently ignore this fact. Including this spatial variability in future registration policies would have significant consequences on the amount and pattern of leaching simulated, especially if risk assessments are implemented in a spatially distributed way.

Published
2007

22. Scientific Opinion about the Guidance of the Chemical Regulation Directorate (UK) on how aged sorption studies for pesticides should be conducted, analysed and used in regulatory assessments.

Author

Ockleford C, Hernandez-Jerez AF, Hougaard Bennekou S, Klein M, Adriaanse TP, Berny P, Brock T, Duquesne S, Grilli S, Kuhl T, Laskowski R, Machera K, Pelkonen O, Pieper S, Stemmer M, Sundh I, Teodorovic I, Topping CJ, Wolterink G, Smith RH, Gimsing AL, Kasteel R, Boivin A, van der Linden T, Oriol Magrans J, Egsmose M, and Tiktak A

Abstract

The EFSA Panel on Plant Protection Products and their Residues reviewed the guidance on how aged sorption studies for pesticides should be conducted, analysed and used in regulatory assessment. The inclusion of aged sorption is a higher tier in the groundwater leaching assessment. The Panel based its review on a test with three substances taken from a data set provided by the European Crop Protection Association. Particular points of attention were the quality of the data provided, the proposed fitting procedure of aged sorption experiments and the proposed method for combining results obtained from aged sorption studies and lower-tier studies on degradation and adsorption. Aged sorption was a relevant process in all cases studied. The test revealed that the guidance could generally be well applied and resulted in robust and plausible results. The Panel considers the guidance suitable for use in the groundwater leaching assessment after the recommendations in this Scientific Opinion have been implemented, with the exception of the use of field data to derive aged sorption parameters. The Panel noted that the draft guidance could only be used by experienced users because there is no software tool that fully supports the work flow in the guidance document. It is therefore recommended that a user-friendly software tool be developed. Aged sorption lowered the predicted concentration in groundwater. However, because aged sorption experiments may be conducted in different soils than lower-tier degradation and adsorption experiments, it cannot be guaranteed that the higher tier predicts lower concentrations than the lower tier, while lower tiers should be more conservative than higher tiers. To mitigate this problem, the Panel recommends using all available higher- and lower-tier data in the leaching assessment. The Panel further recommends that aged sorption parameters for metabolites be derived only from metabolite-dosed studies. The formation fraction can be derived from parent-dosed degradation studies, provided that the parent and metabolite are fitted with the best-fit model, which is the double first-order in parallel model in the case of aged sorption., (© 2018 European Food Safety Authority. EFSA Journal published by John Wiley and Sons Ltd on behalf of European Food Safety Authority.)

Published
2018
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