BERNARD, Marion; BOUTRY, Sebastien; TAPIE, Nathalie; BUDZINSKI, Hélène; MAZZELLA, Nicolas

doi:10.1007/s11356-018-3391-2

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

BERNARD, Marion

BOUTRY, Sebastien

TAPIE, Nathalie
Environnements et Paléoenvironnements OCéaniques [EPOC]

Langue

Article de revue

Ce document a été publié dans

Environmental Science and Pollution Research. 2022-01, vol. 29, p. 40-50

Résumé en anglais

In this lab-scale study, the POCIS capacity to integrate short contamination peaks of variable intensity and duration was evaluated. POCIS were immersed for 14 days in tanks filled with tap water and spiked at different concentrations with 12 pesticides of various polarities (log Kow = 1.1–4.7) and classes (herbicides, fungicides, and insecticides). Concentrations were kept relatively constant at 1 μg L−1 and 5 μg L−1, respectively, in two “background” exposure tanks. Three contamination peaks of increasing intensity and decreasing duration were simulated (10 μg L−1 for 24 h, 40 μg L−1 for 6 h, and 60 μg L−1 for 1 h). This lab-scale study demonstrated that ten moderately polar compounds (2 < log Kow < 4) showed a linear uptake, as observed in previous studies, while a non-linear model fits the data of the two most polar pesticides (log Kow < 2). Depending on chemical polarity, some compounds exhibited a “burst effect” or “lag effect” during the first 3 days of exposure. After 14 days of exposure, contamination peaks appeared integrated for seven compounds, showing the ability of POCIS to catch very short pollution events and to provide acceptable time-weighted average concentration estimates under laboratory-controlled conditions.< Réduire

Mots clés en anglais

POCIS

Pesticides

Fleeting events

Model selection

Laboratory-controlled conditions

Métadonnées

Partager cette publication !

Licence d’utilisation du document

Lab-scale investigation of the ability of Polar Organic Chemical Integrative Sampler to catch short pesticide contamination peaks

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

URI

DOI

Unités de recherche