Solving mercury (Hg) speciation in soil samples by synchrotron X-ray microspectroscopic techniques (Articolo in rivista)

Type
Label
  • Solving mercury (Hg) speciation in soil samples by synchrotron X-ray microspectroscopic techniques (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.envpol.2010.04.016 (literal)
Alternative label
  • Terzano R; Santoro A; Spagnuolo M; Vekemans B; Medici L; Janssens K; Gottlicher J; Denecke MA; Mangold S; Ruggiero P (2010)
    Solving mercury (Hg) speciation in soil samples by synchrotron X-ray microspectroscopic techniques
    in Environmental pollution (1987)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Terzano R; Santoro A; Spagnuolo M; Vekemans B; Medici L; Janssens K; Gottlicher J; Denecke MA; Mangold S; Ruggiero P (literal)
Pagina inizio
  • 2702 (literal)
Pagina fine
  • 2709 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 158 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 8 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 8 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Dipartimento di Biologia e Chimica Agroforestale ed Ambientale, University of Bari, Via Amendola 165/A, 70126 Bari, Italy (2) Department of Analytical Chemistry, Ghent University, Krijgslaan 281 S12, B-9000 Ghent, Belgium (3) Istituto di Metodologie per l'Analisi Ambientale, I.M.A.A., C.N.R., Contrada S. Loja, I-85050 Tito Scalo (PZ), Italy (4) Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk, Belgium (5) Karlsruhe Institute of Technology, Institute for Synchrotron Radiation, P.O. Box 3640, D-76021 Karlsruhe, Germany (6) Karlsruhe Institute of Technology, Institut für Nukleare Entsorgung, P.O. Box 3640, D-76021 Karlsruhe, Germany (literal)
Titolo
  • Solving mercury (Hg) speciation in soil samples by synchrotron X-ray microspectroscopic techniques (literal)
Abstract
  • Direct mercury (Hg) speciation was assessed for soil samples with a Hg concentration ranging from 7 up to 240 mg kg(-1). Hg chemical forms were identified and quantified by sequential extractions and bulk- and micro-analytical techniques exploiting synchrotron generated X-rays. In particular, microspectroscopic techniques such as mu-XRF,mu-XRD and mu-XANES were necessary to solve bulk Hg speciation, in both soil fractions <2 mm and <2 mu m. The main Hg-species found in the soil samples were metacinnabar (beta-HgS), cinnabar (alpha-HgS), corderoite (Hg3S2Cl2), and an amorphous phase containing Hg bound to chlorine and sulfur. The amount of metacinnabar and amorphous phases increased in the fraction <2 pm. No interaction among Hg-species and soil components was observed. All the observed Hg-species originated from the slow weathering of an inert Hg-containing waste material (K106, U.S. EPA) dumped in the area several years ago, which is changing into a relatively more dangerous source of pollution. (literal)
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