Concentrations of Cr, Cu, Hg, Pb and Zn have been measured, by atomic absorption spectrophotometry, in the fine fraction (<63 μm) of surface sediments collected in 30 sites in the Palermo Gulf (Sicily, Italy) in order to assess the levels and the spatial distribution of these elements. Enrichment factors calculated with respect to clean areas have been considered to discriminate between levels due to background or to pollution contributions. The sampling stations, which form a grid inside these areas, are characterized by geographic proximity and by the presence of pollution sources. Ratio matching technique along with hierarchical clustering, minimum spanning tree and principal component analysis have been used for the statistical analysis of data, allowing to better describe the spatial distribution of metal levels. Our work allowed to assess the anthropogenic contribution to the pollution of the area under investigation through industrial and domestic wastes, presence of an harbour area and river inflow.

Tranchina, L., Basile, S., Brai, M., Caruso, A., Cosentino, C., & Micciché, S. (2008). Distribution of heavy metals in marine sediments of Palermo Gulf (Sicily, Italy). WATER AIR AND SOIL POLLUTION, 191, 245-256 [DOI 10.1007/s11270-008-9621-3].

Distribution of heavy metals in marine sediments of Palermo Gulf (Sicily, Italy)

TRANCHINA, Luigi;BASILE, Salvatore;BRAI, Maria;CARUSO, Antonio;COSENTINO, Claudia;MICCICHE', Salvatore
2008

Abstract

Concentrations of Cr, Cu, Hg, Pb and Zn have been measured, by atomic absorption spectrophotometry, in the fine fraction (<63 μm) of surface sediments collected in 30 sites in the Palermo Gulf (Sicily, Italy) in order to assess the levels and the spatial distribution of these elements. Enrichment factors calculated with respect to clean areas have been considered to discriminate between levels due to background or to pollution contributions. The sampling stations, which form a grid inside these areas, are characterized by geographic proximity and by the presence of pollution sources. Ratio matching technique along with hierarchical clustering, minimum spanning tree and principal component analysis have been used for the statistical analysis of data, allowing to better describe the spatial distribution of metal levels. Our work allowed to assess the anthropogenic contribution to the pollution of the area under investigation through industrial and domestic wastes, presence of an harbour area and river inflow.
Settore GEO/01 - Paleontologia E Paleoecologia
Settore CHIM/12 - Chimica Dell'Ambiente E Dei Beni Culturali
Settore FIS/02 - Fisica Teorica, Modelli E Metodi Matematici
Tranchina, L., Basile, S., Brai, M., Caruso, A., Cosentino, C., & Micciché, S. (2008). Distribution of heavy metals in marine sediments of Palermo Gulf (Sicily, Italy). WATER AIR AND SOIL POLLUTION, 191, 245-256 [DOI 10.1007/s11270-008-9621-3].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/38436
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