Biography

I mainly work with the annual reporting of pesticide residue monitoring results to the Norwegian Food Safety Authority and EFSA (European Food Safety Authority). In addition, I work with degradation and sorption of pesticides in soil, pesticide analysis and environmental exposure modelling of pesticides. I have a Bachelor degree from Høgskolen i Nord-Trøndelag and has worked in NIBIO since 1996.

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Abstract

OBJECTIVES • Gain a better understanding of the fate of pesticides in the environment by also screening and detecting their metabolites • Predict and detect pesticide metabolites in soils using high resolution accurate mass (HRAM) tools; Thermo Q Exactive orbitrap and Compound DiscovererTM software. HIGHLIGHTS • We present in silico metabolism simulation to predict fungicide metabolites in soil • We present a screening method for 800 pesticides and metabolites in soil and food, exemplified with soil samples from strawberry field degradation studies (including fluopyram, boscalid and pyraclostrobin and others) • We address the lack of molecular formulas for known metabolites in current databases as an obstacle in establishing HRAM screening methods

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Abstract

This is a final report for the project Norwegian Scenarios II, part two, that has been performed in collaboration between Bioforsk Plant Health and Plant Protection, The Norwegian University of Life Sciences and the Norwegian Food Safety Authority. The aim of the project was to establish Norwegian scenarios for the models PRZM and MACRO and to use them for approval of new pesticides.

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Abstract

Although the sulfonylurea herbicides have been used for many years worldwide, few field studies have been performed and little is known about the occurrence, fate and transport of sulfonylureas in the field. This report presents results from the first controlled field and laboratory-studies on the fate of sulfonylurea herbicides in Norway and a method for sample preparation and LC-MS/MS analysis of sulfonylurea herbicides in water samples is also presented.