Redox reactions and the influence of natural Mn oxides on Cr oxidation in a contaminated site in northern Italy: evidence from Cr stable-isotopes and EPR spectroscopy (Articolo in rivista)

Type

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

Label

• Redox reactions and the influence of natural Mn oxides on Cr oxidation in a contaminated site in northern Italy: evidence from Cr stable-isotopes and EPR spectroscopy (Articolo in rivista) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

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

• 10.1051/e3sconf/20130133007 (literal)

Alternative label

• F. F. Marafatto, R. Petrini, C. Pinzino, E. Pezzetta, F. Slejko and A. Lutman (2013)
  Redox reactions and the influence of natural Mn oxides on Cr oxidation in a contaminated site in northern Italy: evidence from Cr stable-isotopes and EPR spectroscopy
  in E3S Web of Conferences; EDP Sciences, Les Ulis Cedex (Francia)
  (literal)

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

• F. F. Marafatto, R. Petrini, C. Pinzino, E. Pezzetta, F. Slejko and A. Lutman (literal)

Pagina inizio

• 1 (literal)

Pagina fine

• 4 (literal)

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

• 1 (literal)

Rivista

• E3S Web of Conferences (Rivista)

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

• 4 (literal)

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

• 33007 (literal)

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

• DMG, Università degli Studi di Trieste, Via Weiss 8, I-34128 Trieste (Italy), femi.marafatto@gmail.com 2 DMG, Università degli Studi di Trieste, Via Weiss 8, I-34128 Trieste (Italy), petrini@units.it 3 ICCOM-CNR, Area della Ricerca, via G. Moruzzi 1, I-56127 Pisa (Italy), rino@pi.iccom.cnr.it 4 ARPA-FVG, Sezione Laboratorio Unico, via Colugna 42, I-33100 Udine (Italy), elena.pezzetta@arpa.fvg.it 5 DMG, Università degli Studi di Trieste, Via Weiss 8, I-34128 Trieste (Italy), fslejko@units.it 6 ARPA-FVG, Sezione Laboratorio Unico, via Colugna 42, I-33100 Udine (Italy), anna.lutman@arpa.fvg.it (literal)

Titolo

• Redox reactions and the influence of natural Mn oxides on Cr oxidation in a contaminated site in northern Italy: evidence from Cr stable-isotopes and EPR spectroscopy (literal)

Abstract

• Hexavalent chromium-contaminated groundwaters and sediments in northern Italy have been studied using the Cr stable-isotope systematics and electron spin resonance spectroscopy (ESR), in order to explore redox changes and soil-groundwater interactions. The isotopic data indicate a possible Cr(VI) source released into the environment from an industrial plant. EPR spectra on the sediments which constitute the aquifers show a broad asymmetric absorption due to coupled Fe(III) and coupled Cr(III) ions and a well resolved hyperfine structure due to manganese ions, resulting from Mn(IV) and Mn(II). The isotopic and EPR data support the hypothesis of Cr(III) being oxidized by Mn oxides which are widespread in the aquifer, possibly related to the oscillation of the phreatic level. The obtained results highlight the usefulness of chromium stable isotopes as environmental tracers and support the observations that naturally occurring Mn oxides in soils may catalize Cr oxidation from the stable Cr(III) form to the toxic Cr(VI) soluble form, yielding valuable information in planning remediation interventions. (literal)

Editore

• EDP Sciences (Editore)

Prodotto di

• Metodi di risonanza magnetica (PM.P03.015.003) (Modulo)
• Istituto di chimica dei composti organo metallici (ICCOM) (Istituto)

Autore CNR

• CALOGERO PINZINO (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Redox reactions and the influence of natural Mn oxides on Cr oxidation in a contaminated site in northern Italy: evidence from Cr stable-isotopes and EPR spectroscopy" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto di chimica dei composti organo metallici (ICCOM) (Istituto)
• Metodi di risonanza magnetica (PM.P03.015.003) (Modulo)

Autore CNR di

• CALOGERO PINZINO (Unità di personale interno)

Editore di

• EDP Sciences (Editore)

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

• E3S Web of Conferences (Rivista)

Insieme di parole chiave di

• Parole chiave di "Redox reactions and the influence of natural Mn oxides on Cr oxidation in a contaminated site in northern Italy: evidence from Cr stable-isotopes and EPR spectroscopy" (Insieme di parole chiave)