Characterizing environmental contamination by plant protection products along the land-to-sea continuum:a focus on France and French overseas territories - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement
Article Dans Une Revue Environmental Science and Pollution Research Année : 2024

Characterizing environmental contamination by plant protection products along the land-to-sea continuum:a focus on France and French overseas territories

Résumé

Environmental compartments are contaminated by a broad spectrum of plant protection products (PPPs) that are currently widely used in agriculture or, for some of them, whose use was banned many years ago. The aim of this study is to draw up an overview of the levels of contamination of soils, continental aquatic environments, seawaters and atmosphere by organic PPPs in France and the French overseas territories, based on data from the scientific publications and the grey literature. It is difficult to establish an exhaustive picture of the overall contamination of the environment because the various compartments monitored, the monitoring frequencies, the duration of the studies and the lists of substances are not the same. Of the 33 PPPs most often recorded at high concentration levels in at least one compartment, 5 are insecticides, 9 are fungicides, 15 are herbicides and 4 are transformation products. The PPP contamination of the environment shows generally a seasonal variation according to crop cycles. On a pluriannual scale, the contamination trends are linked to the level of use driven by the pest pressure, and especially to the ban of PPP. Overall, the quality of the data acquired has been improved thanks to new, more integrative sampling strategies and broad-spectrum analysis methods that make it possible to incorporate the search for emerging contaminants such as PPP transformation products. Taking into account additional information (such as the quantities applied, agricultural practices, meteorological conditions, the properties of PPPs and environmental conditions) combined with modelling tools will make it possible to better assess and understand the fate and transport of PPPs in the environment, inter-compartment transfers and to identify their potential impacts. Simultaneous monitoring of all environmental compartments as well as biota in selected and limited relevant areas would also help in this assessment.
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Dates et versions

hal-04698350 , version 1 (15-10-2024)

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Christelle Margoum, Carole Bedos, Dominique Munaron, Sylvie Nélieu, Anne-Laure Achard, et al.. Characterizing environmental contamination by plant protection products along the land-to-sea continuum:a focus on France and French overseas territories. Environmental Science and Pollution Research, 2024, ⟨10.1007/s11356-024-34945-9⟩. ⟨hal-04698350⟩
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