Benthic fluxes of copper, complexing ligands and thiol compounds in shallow lagoon waters. (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Benthic fluxes of copper, complexing ligands and thiol compounds in shallow lagoon waters. (Articolo in rivista) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

Alternative label

• Chapman C.S.; Capodaglio G.; Turetta C.; van den Berg C.M.G. (2009)
  Benthic fluxes of copper, complexing ligands and thiol compounds in shallow lagoon waters.
  in Marine environmental research
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Chapman C.S.; Capodaglio G.; Turetta C.; van den Berg C.M.G. (literal)

Pagina inizio

• 17 (literal)

Pagina fine

• 24 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 67 (literal)

Rivista

• Marine environmental research (Rivista)

Note

• ISI Web of Science (WOS) (literal)
• Google Scholar (literal)
• Science direct - Elsevier (literal)
• Scopus (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Department of Earth and Ocean Sciences, University of Liverpool, Brownlow Street, Liverpool L69 3GP, UK; University Ca' Foscari, Venice, Italy; IDPA-CNR, Venice, Italy (literal)

Titolo

• Benthic fluxes of copper, complexing ligands and thiol compounds in shallow lagoon waters. (literal)

Abstract

• Benthic fluxes of copper, copper complexing ligands and thiol compounds in the shallow waters of Venice Lagoon (Italy) were determined using benthic chambers and compared to porewater concentrations to confirm their origin. Benthic copper fluxes were small due to small concentration differences between the porewaters and the overlying water, and the equilibrium concentration was the same at both sites, suggesting that the sediments acted to buffer the copper concentration. Thiol fluxes were ?10 ? greater at 50-60 pmol cm?2 h?1, at the two sites. Porewater measurements demonstrated that the sediments were an important source of the thiols to the overlying waters. The overlying waters were found to contain at least two ligands, a strong one, L1 (log K0 CuL1 = 14.2) and a weaker one, L2 (log K0 CuL2 = 12.5). The concentration of L1 remained relatively constant during the incubation and similar to that of copper, whereas that of L2 was in great excess of copper, its concentration balanced by porewater releases and breakdown, probably due to uptake by microorganisms, similar to that of the thiol compounds. Similarity of the thiol and L2 concentrations and similar complex stability with copper suggest that L2 was dominated by the thiols. The free copper concentration ([Cu´ ]) in the Lagoon waters was lowered by a factor of 105 as a result of the organic complexation. (literal)

Prodotto di

• Microinquinanti organici ed inorganici in aree a diversa antropizzazione (TA.P03.011.001) (Modulo)
• Istituto per la dinamica dei processi ambientali (IDPA) (Istituto)

Autore CNR

• GABRIELE CAPODAGLIO (Unità di personale esterno)
• CLARA TURETTA (Persona)

Insieme di parole chiave

• Keywords of "Benthic fluxes of copper, complexing ligands and thiol compounds in shallow lagoon waters." (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto per la dinamica dei processi ambientali (IDPA) (Istituto)
• Microinquinanti organici ed inorganici in aree a diversa antropizzazione (TA.P03.011.001) (Modulo)

Autore CNR di

• CLARA TURETTA (Persona)
• GABRIELE CAPODAGLIO (Unità di personale esterno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Marine environmental research (Rivista)

Insieme di parole chiave di

• Keywords of "Benthic fluxes of copper, complexing ligands and thiol compounds in shallow lagoon waters." (Insieme di parole chiave)