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

Anne Louise Gimsing , Jutta Agert , Nicole Baran (1) , Arnaud Boivin (2, 3) , Federico Ferrari , Richard Gibson , Lisa Hammond , Florian Hegler (4) , Russell L. Jones , Wolfram Koenig , Jenny Kreuger (5) , Ton van Der Linden , Dirk Liss , Ludovic Loiseau , Andy Massey , Benedict Miles , Laurent Monrozies , Andy Newcombe , Anton Poot , Graham L. Reeves , Stefan Reichenberger (6) , Annette E. Rosenbom , Horst Staudenmaier , Robin Sur , Andreas Schwen (7) , Michael Stemmer (8) , Wiebke Tueting , Uta Ulrich

1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
2 ANSES - Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail
3 DEPR - Direction de l'évaluation des produits réglementés
4 ZAG - Center for Applied Geoscience [Tübingen]
5 Division of water quality management
6 Institute of Landscape Ecology and Resources Management
7 Institute of Hydraulics and Rural Water Management
8 Austrian Agency for Health and Food Safety (AGES)

Groundwater monitoring is recommended as a higher-tier option in the regulatory groundwater assessment of crop protection products in the European Union. However, to date little guidance has been provided on the study designs. The SETAC EMAG-Pest GW group (a mixture of regulatory, academic, and industry scientists) was created in 2015 to establish scientific recommendations for conducting such studies. This report provides recommendations for study designs and study procedures made by the Society of Environmental Toxicology and Chemistry (SETAC) Environmental Monitoring Advisory Group on Pesticides (EMAG-Pest). Because of the need to assess the vulnerability to leaching in both site selection and extrapolating study results, information on assessing vulnerability to leaching is also a major topic in this report. The design of groundwater monitoring studies must consider to which groundwater the groundwater quality standard is applicable and the associated spatial and temporal aspects of its application, the objective of the study, the properties of the active substance and its metabolites, and site characteristics. This limits the applicability of standardised study designs. The effect of the choice of groundwater to which the water quality guideline is applied on study design is illustrated and examples of actual study designs are presented.

Mots clés: Pesticides; Vulnerability assessments; LEVEL; Monitoring; Groundwater

Domaines: Géologie appliquée

Anne Louise Gimsing, Jutta Agert, Nicole Baran, Arnaud Boivin, Federico Ferrari, et al.. Conducting groundwater monitoring studies in Europe for pesticide active substances and their metabolites in the context of Regulation (EC) 1107/2009. JOURNAL OF CONSUMER PROTECTION AND FOOD SAFETY, 2019, 14, pp.1-93. ⟨10.1007/s00003-019-01211-x⟩. ⟨hal-02380958⟩