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- W2056333906 abstract "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 studied genera the most contaminated by PAHs were Ulva, Undaria and Cystoseira. The highest concentrations of PCBs and pesticides were found in Cystoseira, Fucus and Gracilaria. The least contaminated genus was Porphyra. Although macroalgal specimens were sampled in differently contaminated areas placed from the mainland to the Lido Lagoon mouth, no quantitatively meaningful differences of concentrations were found among the sampling stations. Des échantillons de sept genres de macro-algues (Ulva, Gracilaria, Porphyra, Grateloupia, Undaria, Fucus et Cystoseira) qui peuvent être utilisées comme bio-indicateurs et dans plusieurs autres applications, comme l’alimentation humaine, animale et en cosmétique, ont été recueillis dans quatre stations d’échantillonnage dans la lagune de Venise au printemps et à l'automne 1999 pour déterminer leur contamination en micropolluants organiques (biphényls polychlorés, PCB, pesticides chlorés et hydrocarbures polycycliques aromatiques, HAP). La plupart des espèces considérées sont contaminées essentiellement par des HAP (jusqu’à 56 ng g–1 poids sec), tandis que les concentrations de PCB et de pesticides dans les tissus, étant bien corrélées, ne sont pas plus hautes que 5 ng g–1, p.s. Parmi les genres étudiés, les plus contaminés par HAP sont Ulva, Undaria et Cystoseira. Les concentrations les plus hautes de PCB et de pesticides ont été trouvés dans Cystoseira, Fucus, Gracilaria, tandis que le genre le moins contaminé est Porphyra. Bien que les échantillons de macro-algues aient été recueillis dans différents endroits de la lagune situés entre la terre ferme et l’ouverture du Lido, aucune différence significative n’a été trouvée entre les concentrations déterminées pour chaque station." @default.
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- W2056333906 date "2003-11-01" @default.
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- W2056333906 title "Organic micropollutants (PAHs, PCBs, pesticides) in seaweeds of the lagoon of Venice" @default.
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- W2056333906 doi "https://doi.org/10.1016/s0399-1784(03)00052-5" @default.
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