DUPORTE, Geoffroy; BARRON, Emmanuelle; BUREAU, Mathilde; LE MENACH, Karyn; BALDI, Isabelle; DEVIER, Marie-Helene; BUDZINSKI, Hélène

doi:10.1021/acs.est.3c10542

DUPORTE, Geoffroy
Environnements et Paléoenvironnements OCéaniques [EPOC]

BARRON, Emmanuelle

Environnements et Paléoenvironnements OCéaniques [EPOC]

BUREAU, Mathilde
Bordeaux population health [BPH]

Langue

Article de revue

Ce document a été publié dans

Environmental Science and Technology. 2024-08-06, vol. 58, n° 31, p. 13605-13612

Résumé en anglais

Captan dislodgeable foliar residues (DFRs) were determined by following the applications of this fungicide in an apple orchard. The study comprised an investigation of the variability of captan DFR values and 14 days of DFR monitoring to assess kinetic modeling. A method combining solid-phase microextraction (SPME) gas chromatography and high-resolution mass spectrometry (GC-QTOF-MS) was developed for the quantification of captan residues from DFR aqueous extracts. The results evidenced that (1) sampling parameters such as the position of the tree in a row and the height of foliar significantly influenced captan DFR levels (247-1450 ng·cm(-2)), highlighting the need to implement a comprehensive sampling strategy; (2) the DFR captan dissipation kinetic model best matched with a biphasic one, with half-lives of DFR(captan) of 3.4 and 12.8 days, respectively, for the initial rapid phase 1 decline (day 0-5) and the slower phase 2 decline phase (day 6-14). Furthermore, through DFR measurements, the potential dermal exposure (PDE) of workers was assessed using transfer coefficients (TCs) from the literature. Compared to the acceptable operator exposure levels (AOELs), the results showed that the re-entry interval for captan may not sufficiently protect workers whose arms, hands, and legs are not covered.< Réduire

Mots clés en anglais

Apple Growing

Captan

Dislodgeable Foliar Residues

Kinetic

Re-Entry

Worker Exposure

URI

https://oskar-bordeaux.fr/handle/20.500.12278/202387

DOI

http://dx.doi.org/10.1021/acs.est.3c10542

Project ANR

COntinental To coastal Ecosystems: evolution, adaptability and governance - ANR-10-LABX-0045
Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003

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Dislodgeable Foliar Residue Measurements and Assessment of Dermal Exposure to Captan for Workers in Apple Orchards

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Dislodgeable Foliar Residue Measurements and Assessment of Dermal Exposure to Captan for Workers in Apple Orchards

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Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

URI

DOI

Project ANR

Unités de recherche