The use of copper as plant protection product contributes to environmental contamination and resulting impacts on terrestrial and aquatic biodiversity and ecosystem functions
2025
Pesce, Stéphane | Mamy, Laure | Sanchez, Wilfried | Artigas, Joan | Bérard, Annette | Betoulle, Stéphane | Chaumot, Arnaud | Coutellec, Marie-agnès | Crouzet, Olivier | Faburé, Juliette | Hedde, Mickael | Leboulanger, Christophe | Margoum, Christelle | Martin-laurent, Fabrice | Morin, Soizic | Mougin, Christian | Munaron, Dominique | Nélieu, Sylvie | Pelosi, Céline | Leenhardt, Sophie
Copper-based plant protection products (PPPs) are widely used in both conventional and organic farming, and to a lesser extent for non-agricultural maintenance of gardens, greenspaces, and infrastructures. The use of copper PPPs adds to environmental contamination by this trace element. This paper aims to review the contribution of these PPPs to the contamination of soils and waters by copper in the context of France (which can be extrapolated to most of the European countries), and the resulting impacts on terrestrial and aquatic biodiversity, as well as on ecosystem functions. It was produced in the framework of a collective scientific assessment on the impacts of PPPs on biodiversity and ecosystem services in France. Current science shows that copper, which persists in soils, can partially transfer to adjacent aquatic environments (surface water and sediment) and ultimately to the marine environment. This widespread contamination impacts biodiversity and ecosystem functions, chiefly through its effects on phototrophic and heterotrophic microbial communities, and terrestrial and aquatic invertebrates. Its effects on other biological groups and biotic interactions remain relatively under-documented.
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