Surface sediments from Pialassa Piomboni coastal lagoon (NW Adriatic Sea, Italy) were analysed, in order to evaluate the potential risk associated with the presence of heavy metals (Cd, Cu, Ni, Pb e Zn) for resident biota. Sediments have been extracted with HCl 1M under inert atmosphere (N2), and subsequently the content of acid-volatile sulfide (AVS) and the sum of molar concentrations of simultaneously extracted metals (∑SEM) were determined. The AVS levels are between 0.03 and 8.8 µmol g-1 (3.1 ± 2.8 µmol g-1); while ∑SEM range from 0.3 to 6.6 µmol g-1 (1.7 ± 1.3 µmol g-1). Zn and Cd represent the higher (31 - 93%) and lower (> 1%) contributions to ∑SEM value, respectively. The high ∑SEM concentrations are located in the southern area of the lagoon. Over 90% of surface sediments analyzed did not show potential adverse biological effects according to the criteria proposed by the USEPA.

Surface sediment quality assessment in a coastal lagoon (NW Adriatic Sea) based on SEM-AVS analysis / Guerra R.; Pozo Hernandez J.P.. - (2014), pp. 559-563. (Intervento presentato al convegno ECOMONDO - Green economy: ricerca, innovazione e azioni del Mediterraneo, 5-8 Novembre 2014 Rimini, Fabio Fava Eds., 559-563. tenutosi a Rimini nel 5-8 Novembre 2014).

Surface sediment quality assessment in a coastal lagoon (NW Adriatic Sea) based on SEM-AVS analysis

GUERRA, ROBERTA;
2014

Abstract

Surface sediments from Pialassa Piomboni coastal lagoon (NW Adriatic Sea, Italy) were analysed, in order to evaluate the potential risk associated with the presence of heavy metals (Cd, Cu, Ni, Pb e Zn) for resident biota. Sediments have been extracted with HCl 1M under inert atmosphere (N2), and subsequently the content of acid-volatile sulfide (AVS) and the sum of molar concentrations of simultaneously extracted metals (∑SEM) were determined. The AVS levels are between 0.03 and 8.8 µmol g-1 (3.1 ± 2.8 µmol g-1); while ∑SEM range from 0.3 to 6.6 µmol g-1 (1.7 ± 1.3 µmol g-1). Zn and Cd represent the higher (31 - 93%) and lower (> 1%) contributions to ∑SEM value, respectively. The high ∑SEM concentrations are located in the southern area of the lagoon. Over 90% of surface sediments analyzed did not show potential adverse biological effects according to the criteria proposed by the USEPA.
2014
Green economy e sua implementazione nel mediterraneo - Atti ecomondo 2014
559
563
Surface sediment quality assessment in a coastal lagoon (NW Adriatic Sea) based on SEM-AVS analysis / Guerra R.; Pozo Hernandez J.P.. - (2014), pp. 559-563. (Intervento presentato al convegno ECOMONDO - Green economy: ricerca, innovazione e azioni del Mediterraneo, 5-8 Novembre 2014 Rimini, Fabio Fava Eds., 559-563. tenutosi a Rimini nel 5-8 Novembre 2014).
Guerra R.; Pozo Hernandez J.P.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/397898
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