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Chemosphere. 2005 Nov;61(6):800-9.

Distribution and partition of heavy metals in surface and sub-surface sediments of Naples city port.

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Dipartimento di Scienze del Suolo, della Pianta e dell'Ambiente, Università di Napoli Federico II, Via Università, 100-80055 Portici (NA), Italy.


The aim of the study was to delineate the extent of heavy metal pollution in the marine sediments within the port of Naples. Total metal contents from twenty surface sediments were compared with those from a long sediment core representing the natural geochemical baseline. Enrichment factors were computed for each metal and for each site in order to assess the polluting metals and the degree of pollution at each site. Results revealed that heavy metal pollution is mainly localized in the port area devoted to shipbuilding activities and in the south-east sector, which is under the influence of petroleum refineries. Data from sequential extractions indicate that metals from anthropogenic sources are mainly Cd, Zn, Cr and Cu and are potentially more mobile than those inherited from geological parent material.

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