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A series of investigations were performed on the sediments of the Venetian Lagoon regarding their environmental contamination status in the context of the 'Sistema Lagunare Veneziano' Project. Five monitoring areas have been selected in the lagoon: Porto Marghera, Dese, Sacca Sessola, Chioggia and Canale Grande and in July 1994 34 sediment samples were takein in a sampling campaign. The sediments have been analysed for their matrix elements and nutrient elements, and the most critical metals. Obtained contaminant data have been compared to the sediment quality criteria, proposed by US Environmental Protection Agency, Wisconsin Department of Natural Resources and the guidelines of the Ontario Ministry of Environment. Metals have been found to accumulate in the central area of the lagoon between the City and the Industrial site of Porto Marghera, most probably the result of water mass displacement process in the hydrobiologically complex lagoon system rather than due to point sources.

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Authors: ZANZOTTERRA S ET AL, JRC Ispra (IT);BIANCHI M, Ecoconsult, Gavirate (IT);CAPODAGLIO G ET AL, Università di Venezia, Centro di Studio sulla Chimica e le Tecnologie per l'Ambiente, CNR (IT)
Bibliographic Reference: Article: Atti Convegno Progetto Sistema Lagunare Veneziano Consiglio Nazionale delle Recerche - Roma
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