Data/hora: 05/06/2024 19:15:08

Provedor de dados: | 5
País: | France
Título: | Comparison of five integrative samplers in laboratory for the monitoring of indicator and dioxin-like polychlorinated biphenyls in water
Autores: | Jacquet, Romain; Miege, Cecile; Smedes, Foppe; Tixier, Celine; Tronczynski, Jacek; Togola, Anne; Berho, Catherine; Valor, Ignacio; Llorca, Julio; Barillon, Bruno; Marchand, Philippe; Coquery, Marina.
Data: | 2014-03
Ano: | 2014
Palavras-chave: | Integrative samplers; Polychlorinated biphenyls; Water monitoring; Time weighted average concentration; Modeling.
Resumo: | This study aimed at evaluating and comparing five integrative samplers for the monitoring of indicator and dioxin-like polychlorinated biphenyls (PCBs) in water: semi-permeable membrane device (SPMD), silicone rubber, low-density polyethylene (LDPE) strip, Chemcatcher and a continuous-flow integrative sampler (CFIS). These samplers were spiked with performance reference compounds (PRCs) and then simultaneously exposed under constant agitation and temperature in a 200 L stainless steel tank for periods ranging from one day to three months. A constant PCB concentration of about 1 ng·L−1 was achieved by immersing a large amount of silicone rubber sheets (“dosing sheets”) spiked with the target PCBs. The uptake of PCBs in the five samplers showed overall good repeatability and their accumulation was linear with time. The samplers SPMD, silicone rubber and LDPE strip were the most promising in terms of achieving low limits of quantification. Time-weighted average (TWA) concentrations of PCBs in water were estimated from uptake of PCBs using the sampling rates calculated from the release of PRCs. Except for Chemcatcher, a good agreement was found between the different samplers and TWA concentrations ranged between 0.4 and 2.8 times the nominal water concentration. Finally, the influence of calculation methods (sampler-water partition coefficients, selected PRCs, models) on final TWA concentrations was studied.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00162/27317/25962.pdf

DOI:10.1016/j.chemosphere.2013.09.011

Editor: | Pergamon-elsevier Science Ltd
Relação: | http://archimer.ifremer.fr/doc/00162/27317/
Formato: | application/pdf
Fonte: | Chemosphere (0045-6535) (Pergamon-elsevier Science Ltd), 2014-03 , Vol. 98 , P. 18-27
Fonte: | 2013 Elsevier Ltd. All rights reserved