Data/hora: 03/06/2024 18:10:32

Provedor de dados: | 5
País: | France
Título: | L'utilisation des échantillonneurs passifs. Une nouvelle méthode pour évaluer la contamination chimique des masses d'eau
Autores: | Gourlay, Catherine; Gonzalez, Jean-louis.
Data: | 2010-03
Ano: | 2010
Palavras-chave: | Échantillonneurs passifs; Eau; Membrane semi-perméable (SPMD); Gradient de diffusion en couche mince (DGT); Métaux; HAP; Passive samplers; Water; Semipermeable membrane device (SPMD); Diffusive gradient in thin film (DGT); Metals; PAHs.
Resumo: | The Water European Framework Directive requires the implementation of programs to monitor the chemical quality of water bodies (freshwater, transition water and seawater), based on grab measurements of concentrations of various contaminants (metals, organic compounds). The results are limited by several analytical difficulties, and the poor representativity because of the temporal variability of contamination. The passive sampling techniques, which basically consist of concentrating substances on a submerged device for a given period, and analyzing accumulated substances, should improve the monitoring, by simplifying analytical issues (lower detection limits, analysis in a simpler matrix), and allowing time integration of the contamination. Here, we present two passive sampling techniques of contaminants that are validated in aquatic environments: the Diffusive Gradient in Thin film (DGT) for metals and the Semipermeable Membrane Device (SPMD) for hydrophobic organic compounds. Both systems allow estimating a timeweighted average concentration of “labile” contaminants, the most bioavailable ones. After a presentation of each tool, examples of applications in river, seawater and wastewater are proposed.
Tipo: | Text
Idioma: | Francês

Identificador:

https://archimer.ifremer.fr/doc/00077/18850/16423.pdf

DOI:10.1051/tsm/201003024

https://archimer.ifremer.fr/doc/00077/18850/

Editor: | ASTEE
Formato: | application/pdf
Fonte: | TSM, Techniques Sciences Méthodes (0299-7258) (ASTEE), 2010-03 , N. 3 , P. 24-35

Fonte:

2010 ASTEE

info:eu-repo/semantics/openAccess

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