|
|
|
|
|
| Hubert, Francoise; Morga, Benjamin; Renault, Tristan; Le Guyader, Soizick. |
| Aims This study was performed to develop passive sampling methodology for the detection of two viruses in seawater in the area of shellfish production, The Norovirus (NoV), a human pathogen implicated in gastroenteritis outbreaks linked to oyster consumption and the ostreid herpesvirus type 1 (OsHV-1) a virus associated with mass mortalities of Pacific oysters. Methods and Results Commercially membranes were tested for their capacity to adsorb virus: Zetapor, gauze, nylon, low density polyethylene (LDPE) and Polyvinylidene difluoride (PVDF). Laboratory exposures of membranes to contaminated water samples (stool, sewage, seawater) were performed. Our data shown that the amount of NoV GII genome per membrane measured with qRT-PCR increased with the time of... |
| Tipo: Text |
Palavras-chave: Norovirus; OsHV-1; Pacific oysters; Passive samplers; Seawater; Sewage. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00365/47646/47670.pdf |
| |
|
|
| Rodríguez, Jose German; Amouroux, Isabelle; Belzunce-segarra, María Jesús; Bersuder, Philippe; Bolam, Thi; Caetano, Miguel; Carvalho, Inês; Correia Dos Santos, Margarida; Fones, Gary R.; Gonzalez, Jean-louis; Guesdon, Stephane; Larreta, Joana; Marras, Barbara; Mchugh, Brendan; Menet-nédélec, Florence; Menchaca, Iratxe; Gabet, Vanessa Millán; Montero, Natalia; Nolan, Martin; Regan, Fiona; Robinson, Craig D.; Rosa, Nuno; Sanz, Marta Rodrigo; Schintu, Marco; White, Blánaid; Zhang, Hao. |
| The current study evaluates the effect of seawater physico-chemical characteristics on the relationship between the concentration of metals measured by Diffusive Gradients in Thin films (DGT) passive samplers (i.e., DGT-labile concentration) and the concentrations measured in discrete water samples. Accordingly, Inductively Coupled Plasma Mass Spectrometry (ICP-MS) was used to measure the total dissolved metal concentrations in the discrete water samples and the labile metal concentrations obtained by DGT samplers; additionally, lead and cadmium conditional labile fractions were determined by Anodic Stripping Voltammetry (ASV) and total dissolved nickel was measured by Cathodic Stripping Voltammetry (CSV). It can be concluded that, in general, the median... |
| Tipo: Text |
Palavras-chave: EU Water Framework Directive; Diffusive Gradients in thin-films (DGT); Passive samplers. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00688/80043/83034.pdf |
| |
|
|
| Gourlay, Catherine; Gonzalez, Jean-louis. |
| 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... |
| Tipo: Text |
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. |
| Ano: 2010 |
URL: https://archimer.ifremer.fr/doc/00077/18850/16423.pdf |
| |
|
| |
|
|
|
