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| Romero, Estela; Le Gendre, Romain; Garnier, Josette; Billen, Gilles; Fisson, Cedric; Silvestre, Marie; Riou, Philippe. |
| The Seine River is a highly artificialised catchment in Europe, comprising both productive agricultural areas and intense industrial and commercial activity. Due to its strategic importance, monitoring programs in the river started as early as the 1970s. The present study compiles and analyses this valuable data set (1970–2014), thoroughly describing the riverine section downstream of Paris and the estuary. We identify long-term trends and shifting patterns in nutrients and oxygen, and pay special attention to the river’s evolution after the year 2000, when the European Water Framework Directive came into force. The study has a manifest management perspective, and the results are discussed on the basis of the environmental quality standards proposed in... |
| Tipo: Text |
Palavras-chave: Seine River; Water quality; Nutrients; Long-term trends; WFD; Policy. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00311/42202/41541.pdf |
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| Uher, Emmanuelle; Compere, Chantal; Combe, Matthieu; Mazeas, Florence; Gourlay-france, Catherine. |
| Concerning in situ passive sampler deployment, several technical priorities must be considered. In particular, deployment time must be sufficiently long not only to allow a significant quantity to be accumulated to facilitate analysis but also to ensure that the signal is above the quantification limit and out of the blank influence. Moreover, regarding the diffusive gradient in thin films (DGT) technique, deployment time must also be sufficiently long (at least 5 days) to avoid the interactions of the solutes with the material diffusion layer of the DGT and for the steady state to be reached in the gel. However, biofouling occurs in situ and modifies the surface of the samplers. In this article, we propose a kinetic model which highlights the biofouling... |
| Tipo: Text |
Palavras-chave: DGT; Metals; Biofouling; Seine River; Field deployment; Passive sampler. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00382/49330/49759.pdf |
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