Article thumbnail

Bages-Sigean and Canet-St Nazaire lagoons (France): physico-chemical characteristics and contaminant concentrations (Cu, Cd, PCBs and PBDEs) as environmental quality of water and sediment

By Florence Vouve, Roselyne Buscail, Dominique Aubert, Pierre Labadie, Marc Chevreuil, Christophe Canal, Marion Desmousseaux, Fabrice Alliot, Elsa Amilhat, Elisabeth Faliex, Séverine Paris-Palacios and Sylvie Biagianti-Risbourg


International audienceEnvironmental characteristics in water and sediments of two contrasted coastal Mediterranean lagoons, Bages-Sigean and Canet-St Nazaire, were measured over a three season survey. The urban pollution (treatment plant discharges) is very important in Canet-St Nazaire lagoon reflecting untreated sewages, while in Bages-Sigean, the northern part appears more impacted due to larger anthropogenic inputs. Dissolved Cd concentrations are on the whole similar in both lagoons, whereas Cu concentrations are by far higher in lagoon Canet-St Nazaire. Cu concentrations appear to be highly dependent on dissolved organic carbon whereas salinity seems to control Cd variations. Concerning the sediments, the confined northern part of lagoon Bages-Sigean shows organic carbon and total nitrogen enrichment whereas lipid concentrations are much higher in the Canet-St Nazaire lagoon. Cu complexation seems to be strongly related to organic matter as evidenced by the two significant positive relationships, on one hand between Cu and organic carbon, and on the other hand, between Cu and lipids. On the contrary, Cd concentrations appear to be mainly controlled by carbonates. PCBs and PBDEs were detected only in sediments and show relatively low concentrations compared to similar lagoon environments. Regarding the sediment quality guidelines, Cd, Cu and PCBs in both lagoons did not exceed any Probable Effect Concentration (PEC)

Topics: PBDEs, PCBs, Cd, Cu, Sediment, Water, Environmental quality, Mediterranean lagoons, [SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry, [SDE] Environmental Sciences
Publisher: Springer Verlag
Year: 2014
DOI identifier: 10.1007/s11356-013-2229-1
OAI identifier: oai:HAL:hal-01195885v1
Provided by: HAL-UNICE
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • https://hal.archives-ouvertes.... (external link)
  • https://hal.archives-ouvertes.... (external link)
  • https://hal.archives-ouvertes.... (external link)

  • To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.

    Suggested articles