Data/hora: 01/06/2024 01:33:33

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | X - Variation de la concentration en métaux lourds dans l'eau, les mollusques et le sédiment d'un bassin aménagé
Autores: | Vicente, N.; Chabert, D.
Data: | 1979
Ano: | 1979
Palavras-chave: | Pollution; Métaux lourds; Lagune; Méditerranée; Pollution; Heavy metals; Lagoon Mediterranean sea.
Resumo: | The study of variations in the concentration of heavy metals inside a tank filled with the water of a neighbouring lagoon has been carried out since August 1977•The analysis concerned a lagoon station and the bath built for ECOTRON program, closed to this lagoon. They deal with water, molluscs and the sediment. Inside the lagoon station, the tested molluscs are Prosobranch Gastropods : Trochocochlea carinata and inside the basin, cockles : Cerastoderma glaucum. The results point out that the concentration of these heavy metals vary with the tissue in relation with physical and chemical medium parameters, and it can be particularly observed a significative correlation between both the whole concentration of these elements inside the sediment and the temperature. The most significant concentrations are met inside the sediment, particularly about the lead (for example : 41,3 ppm/wet weight in August, 8,40 ppm/wet weight in February) and these concentrations are lower for the filter feeding Bivalves than the grazing Prosobranches : for example : as for the cadmium 0,30 ppm/wet weight in the cockles in September, 1,20 ppm/wet weight in the troques " As for the Bivalves, the puting in suspension of the sediment may bring the rise of these concentrations. However, the concentrations of the three elements and their global concen­trations are weak as well in the water, the molluscs and the sediments, in comparison with the continental lagoon stations or with very contaminated zones.
Tipo: | Text
Idioma: | Francês

Identificador:

http://archimer.ifremer.fr/doc/00306/41675/40884.pdf

http://archimer.ifremer.fr/doc/00306/41675/

Editor: | Publications du Centre National pour l'Exploitation des Océans (CNEXO). Série : Actes de colloques, n° 7, 1979, pp. 437-460
Formato: | application/pdf

Fonte:

Centre National pour l’Exploitation des Océan, 1979

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