Pesticide Residues in French Soils: Occurrence, Risks, and Persistence - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles Environmental Science and Technology Year : 2023

Pesticide Residues in French Soils: Occurrence, Risks, and Persistence


Contamination of the environment by pesticide residues is a growing concern given their widespread presence in the environment and their effects on ecosystems. Only a few studies have addressed the occurrence of pesticides in soils, and their results highlighted the need for further research on the persistence and risks induced by those substances. We monitored 111 pesticide residues (48 fungicides, 36 herbicides, 25 insecticides and/or acaricides, and two safeners) in 47 soils sampled across France under various land uses (arable lands, vineyards, orchards, forests, grasslands, and brownfields). Pesticides were found in 98% of the sites (46 of the 47 sampled), including untreated areas such as organic fields, forests, grasslands, and brownfields, with up to 33 different substances detected in one sample, mostly fungicides and herbicides. The concentrations of herbicides were the highest in soils with glyphosate, and its transformation product, AMPA, contributed 70% of the cumulative herbicides. Risk assessment underlined a moderate to high risk for earthworms in arable soils mostly attributed to insecticides and/or acaricides. Finally, the comparison with pesticide application by farmers underlines the presence of some residues long after their supposed 90% degradation and at concentrations higher than predicted environmental concentrations, leading to questions their real persistence in soils.
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hal-04104434 , version 1 (24-05-2023)


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Claire Froger, Claudy Jolivet, Hélène Budzinski, Manon Pierdet, Giovanni Caria, et al.. Pesticide Residues in French Soils: Occurrence, Risks, and Persistence. Environmental Science and Technology, 2023, 57 (20), pp.7818-7827. ⟨10.1021/acs.est.2c09591⟩. ⟨hal-04104434⟩
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