| Title | Metal distribution in marine sediments of the Mar Piccolo in Taranto (Ionic Sea, Southern Italy. |
| Abstract | The spatial distribution of selected metals (Fe, Ni, Mn, Zn, Cu, Pb, Hg and Cd) and their partition in the different chemical forms (speciation) were determined in benthic sediments from Mar Piccolo, Taranto (Ionic Sea, southern Italy). The aim of this study was to assess the degree of sediment contamination and bioavailability of metals, very important for Italian mussel culture, in a semi-enclosed marine ecosystem. In sediments, grain size distribution, total organic carbon (TOC), and humic (HA) and fulvic (FA) acids contents were also determined. The compounds TOC, HA and FA, in fact, have a great influence on metal complexation. High concentrations of copper, lead, zinc and mercury were found, especially in sediments of the first inlet of Mar Piccolo. Statistical analysis of results shows significant correlation among Cu, Pb and Zn concentrations and the influence of organic matter on the sediment distribution of Cu, Pb and Zn. Metal speciation analysis, carried out with sequential extraction method, shows that Fe and Ni are present in sediments mainly as sulphides. Mn and Pb are present principally in an ion-exchangeable form or bound to carbonate and Cu is associated to organic matter. Metal pollution index (MPI), calculated as a weighed mean of the metal contamination factors in each station, shows that with regard to Cu, Ni, Pb and Zn, some stations investigated are unpolluted (MPI <1), whereas in other areas, pollution level is not very high. On the contrary, for mercury, the pollution level in the first inlet of the basin is very high. |
| Source | Toxicological and environmental chemistry (Print) 90 (3), pp. 549–564 |
| Keywords | heavy metalsspeciationenrichment factorsmarine sedimentsMar Piccolo |
| Journal | Toxicological and environmental chemistry (Print) |
| Editor | Gordon and Breach Science Publishers., New York, Stati Uniti d'America |
| Year | 2008 |
| Type | Articolo in rivista |
| DOI | 10.1080/02772240701570420 |
| Authors | Calace N. Cardellicchio N., Ciardullo S., Petronio B.M., Pietrantonio M., Pietroletti M. |
| Text | 60051 2008 10.1080/02772240701570420 heavy metals speciation enrichment factors marine sediments Mar Piccolo Metal distribution in marine sediments of the Mar Piccolo in Taranto Ionic Sea, Southern Italy. Calace N. Cardellicchio N., Ciardullo S., Petronio B.M., Pietrantonio M., Pietroletti M. Dipartimento di Chimica, Universita di Roma CNR Istituto per l Ambiente Marino Costiero The spatial distribution of selected metals Fe, Ni, Mn, Zn, Cu, Pb, Hg and Cd and their partition in the different chemical forms speciation were determined in benthic sediments from Mar Piccolo, Taranto Ionic Sea, southern Italy . The aim of this study was to assess the degree of sediment contamination and bioavailability of metals, very important for Italian mussel culture, in a semi enclosed marine ecosystem. In sediments, grain size distribution, total organic carbon TOC , and humic HA and fulvic FA acids contents were also determined. The compounds TOC, HA and FA, in fact, have a great influence on metal complexation. High concentrations of copper, lead, zinc and mercury were found, especially in sediments of the first inlet of Mar Piccolo. Statistical analysis of results shows significant correlation among Cu, Pb and Zn concentrations and the influence of organic matter on the sediment distribution of Cu, Pb and Zn. Metal speciation analysis, carried out with sequential extraction method, shows that Fe and Ni are present in sediments mainly as sulphides. Mn and Pb are present principally in an ion exchangeable form or bound to carbonate and Cu is associated to organic matter. Metal pollution index MPI , calculated as a weighed mean of the metal contamination factors in each station, shows that with regard to Cu, Ni, Pb and Zn, some stations investigated are unpolluted MPI <1 , whereas in other areas, pollution level is not very high. On the contrary, for mercury, the pollution level in the first inlet of the basin is very high. 90 http //www.tandfonline.com/doi/abs/10.1080/02772240701570420 metal distribution articolo pubblicato Metal_distribution.pdf Articolo in rivista Gordon and Breach Science Publishers. 0277 2248 Toxicological and environmental chemistry Print Toxicological and environmental chemistry Print Toxicol. environ. chem. Print Toxicological and environmental chemistry. Print nicola.cardellicchio CARDELLICCHIO NICOLA TA.P05.016.001 Impatti Antropici sulla fascia costiera metodologie di monitoraggio e remediation di siti e sedimenti contaminati |
