| Abstract | Concentrations of metals (Al, Fe, Ti, Ni, Mn, Cr, Zn, Cu, Pb) were
determined in surface sediments from Taranto gulf (Ionian Sea, Southern Italy) in
order to assess the distribution and the bioavailability of metals. Total metal content
and speciation of Fe, Ni, Mn, Zn, Cu and Pb were determined. Sediment cores were
also sampled in some stations of particular interest. The analytical results show that
metals distribution does not show significant variations in relation to depth. Metal
distribution in the Taranto gulf is mainly influenced by industrial wastes from
Taranto town, by rivers of the Basilicata region and by prevailing anticlockwise
marine currents. These factors cause an accumulation of metals in the sediments near
to the coasts of Calabria. The statistical analysis, effected by HCA and PCA
methods, can be considered a good starting point in order to classify sediment
samples and to locate accumulation areas. Metal speciation shows that Fe, Ni and Zn
are present in sediments mainly as sulphides, Mn is present principally in an ionexchange
form or bound to carbonate, while Cu and Pb are mainly present in the
fraction bounds to humic acids. |
| Text | 6532 2004 10.1002/adic.200490060 ISI Web of Science WOS 000223387000001 HEAVY METALS SOILS DIGESTION DISTRIBUTION AND SPECIATION OF METALS IN SURFACE SEDIMENTS OF TARANTO GULF IONIAN SEA, SOUTHERN ITALY A. Buccolieri, G. Buccolieri, N. Cardellicchio, A. Dell Atti, A. Di Leo, A. Maci, B.M. Petronio Alessandro BUCCOLIERI 1, Giovanni BUCCOLIERI 1, Nicola CARDELLICCHIO 2 ° , Angelo DELL ATTI 1,3, Antonella DI LEO 2, Antonella MACI 1, Bianca Maria PETRONIO 4 1 Dipartimento di Scienza dei Materiali, Universita di Lecce, via per Arnesano, 73100 Lecce, Italy 2 CNR Istituto per l Ambiente Marino Costiero, Sezione di Taranto, via Roma 3, 74100 Taranto, Italy 3 Osservatorio di Monitoraggio dell Inquinamento dell Atmosfera e dello Spazio Circumterrestre, Campi Salentina LE , Italy 4 Dipartimento di Chimica, Universita La Sapienza Roma, piazzale A. Moro 5, 00185 Roma, Italy Concentrations of metals Al, Fe, Ti, Ni, Mn, Cr, Zn, Cu, Pb were determined in surface sediments from Taranto gulf Ionian Sea, Southern Italy in order to assess the distribution and the bioavailability of metals. Total metal content and speciation of Fe, Ni, Mn, Zn, Cu and Pb were determined. Sediment cores were also sampled in some stations of particular interest. The analytical results show that metals distribution does not show significant variations in relation to depth. Metal distribution in the Taranto gulf is mainly influenced by industrial wastes from Taranto town, by rivers of the Basilicata region and by prevailing anticlockwise marine currents. These factors cause an accumulation of metals in the sediments near to the coasts of Calabria. The statistical analysis, effected by HCA and PCA methods, can be considered a good starting point in order to classify sediment samples and to locate accumulation areas. Metal speciation shows that Fe, Ni and Zn are present in sediments mainly as sulphides, Mn is present principally in an ionexchange form or bound to carbonate, while Cu and Pb are mainly present in the fraction bounds to humic acids. 94 articolo pubblicato Annali_2004.pdf Articolo in rivista Societa chimica italiana 0003 4592 Annali di chimica Testo stamp. Annali di chimica Testo stamp. Ann. chim. Testo stamp. Annali di chimica. Testo stamp. antonella.dileo DI LEO ANTONELLA nicola.cardellicchio CARDELLICCHIO NICOLA TA.P04.002.001 Fascia Costiera e Ambienti di Transizione analisi strutturale e funzionale delle componenti biotiche ed abiotiche degli ecosistemi per lo sviluppo sostenibile delle attivita |
