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Registros recuperados: 3
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Heavy-metals in sediments of the venice lagoon ArchiMer
Donazzolo, R; Orio, Aa; Pavoni, B; Perin, G.
Tipo: Text
Ano: 1984 URL: http://archimer.ifremer.fr/doc/00113/22425/20121.pdf
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Organic micropollutants (PAHs, PCBs, pesticides) in seaweeds of the lagoon of Venice ArchiMer
Pavoni, B; Caliceti, M; Sperni, L; Sfriso, A.
Samples of seven genera of seaweeds (Ulva, Gracilaria, Porphyra, Grateloupia, Undaria, Fucus and Cystoseira), which can be used as environmental biomonitors and in several applications like human alimentation, animal feeding and cosmetics, were collected in four sampling sites in the Lagoon of Venice in spring and autumn 1999 with the aim of determining the contamination due to organic micropollutants (polychlorinated biphenyls. PCBs; chlorinated pesticides; polycyclic aromatic hydrocarbons, PAHs). On an average, most of the considered species were contaminated especially by PAHs (up to 56 ng g(-1) dry wt. (dw)) whereas concentrations of PCBs and pesticides in macroalgal tissues were significantly correlated and did not exceed 5 ng g-1 dw. Among the...
Tipo: Text Palavras-chave: Macro-algues; Lagune de Venise; HAP; PCB; Pesticides; Seaweeds; Venice Lagoon; PAHs; PCBs; Pesticides.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/00321/43250/42981.pdf
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Radiometric dating and pollutant profiles in a sediment core from the lagoon of Venice ArchiMer
Donazzolo, R; Orio, A A; Pavoni, B.
The super(210)Pb radioactive dating technique on two cores from the northern part of the Lagoon of Venice gives an average sedimentation rate of 0.7 cm/year. This is used to date the vertical profiles of member of DDT, Hg, Cd, Pb, Cr, Cu, Ni, Co, Zn and Fe concentrations. A maximum member of DDT concentration is found at a depth of 10 cm, corresponding to about 1955, in accordance with the time of the largest use of this pesticide in the area drained by the Dese river. Due to antropogenic origin the concentrations of heavy metals in the upper sediment layers are 1.3-12.7 times higher than those in the lower ones. The average concenttrations of these elements in the layers below 80 cm are tentatively proposed as natural background concentrations for the...
Tipo: Text
Ano: 1982 URL: http://archimer.ifremer.fr/doc/00246/35721/34230.pdf
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