An improved Chemcatcher-based method for the integrative passive sampling of 44 hydrophilic micropollutants in surface water - Part B: Field implementation and comparison with automated active sampling.

Autor: Reymond N; School of Criminal Justice, University of Lausanne, Batochime building, 1015 Lausanne, Switzerland. Electronic address: naomi.reymond@unil.ch., Glanzmann V; School of Criminal Justice, University of Lausanne, Batochime building, 1015 Lausanne, Switzerland., Huisman S; School of Criminal Justice, University of Lausanne, Batochime building, 1015 Lausanne, Switzerland., Plagellat C; Chimie des Eaux, Direction Générale de l'Environnement, 1003 Lausanne, Switzerland., Weyermann C; School of Criminal Justice, University of Lausanne, Batochime building, 1015 Lausanne, Switzerland. Electronic address: celine.weyermann@unil.ch., Estoppey N; School of Criminal Justice, University of Lausanne, Batochime building, 1015 Lausanne, Switzerland; Norwegian Geotechnical Institute (NGI), P.O. Box. 3930, Ullevål Stadion, N-0806 Oslo, Norway.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2023 May 01; Vol. 871, pp. 161937. Date of Electronic Publication: 2023 Feb 02.
DOI: 10.1016/j.scitotenv.2023.161937
Abstrakt: Integrative passive sampling is particularly useful in the monitoring of hydrophilic contaminants in surface water, but the impact of hydrodynamics on contaminant uptake still needs to be better considered. In part A (Glanzmann et al., 2023), Chemcatcher-like hydrophilic samplers (i.e., SDB-RPS extraction disks covered by PES microporous membranes) were calibrated to determine the sampling rates R S of 44 hydrophilic contaminants (pesticides, pharmaceuticals, industrial products) taking into account the hydrodynamic conditions. In this study, Chemcatcher-like passive sampling devices that allowed co-deploying hydrophilic samplers and performance reference compounds (PRC)-spiked silicone disks were tested in a Swiss river with intermediate water velocities (5-50 cm s -1 , 23 cm s -1 on average) during 11 consecutive 14-day periods. The PRC dissipation from silicone disks - combined with the calibration data from part A - allowed to determine in-situ R S that took into account hydrodynamic conditions. The obtained aqueous time-weighted average (TWA) concentrations were found to be robust with good concordance between duplicates (mean quotient of 1.16 between the duplicates). For most measurements (76 %), TWA concentrations showed no major difference (S at infinite water velocity (R S,MAX ), revealing that the added value of using in-situ R S compared to R S,MAX is limited above intermediate water velocities (>20 cm s -1 ). R S from the literature (R S,LIT ) - obtained at water velocities between 8 and 37 cm s -1 - were also shown to provide comparable TWA concentrations in the studied hydrodynamic conditions (average water velocity of 24 cm s -1 ). The estimated errors due to the use of R S,MAX or R S,LIT rather than in-situ R S are given as a function of the water velocity to determine in which conditions the developed method is required (or not) in monitoring programs.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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