Distribution of rare earth elements in marine sediments from the Strait of Sicily (western Mediterranean Sea): Evidence of phosphogypsum waste contamination

Adriana Bellanca, Rodolfo Neri, Paolo Censi, Mario Sprovieri, Salvatore Mazzola, Paolo Censi, Angelone, Francesco Placenti, Tranchida, Oliveri, D'Elia

Risultato della ricerca: Article

38 Citazioni (Scopus)

Abstract

Concentrations of rare earth elements (REE), Y, Th and Sc were recently determined in marine sediments collected using a box corer along two onshore–offshore transects located in the Strait of Sicily (Mediterranean Sea). The REE + Y were enriched in offshore fine-grained sediments where clay minerals are abundant, whereas the REE + Y contents were lower in onshore coarse-grained sediments with high carbonate fractions. Considering this distribution trend, the onshore sediments in front of the southwestern Sicilian coast represent an anomaly with high REE + Y concentrations (mean value 163.4 lg g 1) associated to high Th concentrations (mean value 7.9 lg g 1). Plot of shale-normalized REE + Y data of these coastal sediments showed Middle REE enrichments relative to Light REE and Heavy REE, manifested by a convexity around Sm–Gd–Eu elements. These anomalies in the fractionation patterns of the coastal sediments were attributed to phosphogypsum-contaminated effluents from an industrial plant, located in the southern Sicilian coast.
Lingua originaleEnglish
pagine (da-a)182-191
Numero di pagine10
RivistaMarine Pollution Bulletin
Volume62
Stato di pubblicazionePublished - 2011

All Science Journal Classification (ASJC) codes

  • Oceanography
  • Pollution
  • Aquatic Science

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