Mercury levels in sediments of central Mediterranean Sea: A 150+ year record from box-cores recovered in the Strait of Sicily

Rossella Di Leonardo, Rodolfo Neri, Adriana Bellanca, Salvo Mazzola, Massimo Angelone, Giorgio Tranchida

Risultato della ricerca: Articlepeer review

43 Citazioni (Scopus)

Abstract

To evaluate the degree of anthropogenic mercury pollution, Hg contents have been measured for box-core sediments sampled alongthree nearshore–offshore transects in the Strait of Sicily and well constrained for their mineralogy, bulk geochemistry and TOC%. Hgvalues are generally low (from 15 to 70 lg kg 1); however, depth profiles clearly display upcore rising concentrations (up to 202 lg kg 1near the SE Sicily coast) that are attributed to anthropogenic load. Based on 210Pb chronology, these trends are more dramatic across thelast 20–30 years. Geogenic influence is thought to explain some anomalies related to volcanic emission and geothermal activity. Combinedeffects due to eastward flowing of the Modified Atlantic Water (MAW) and sea bottom morphology drove major anthropogenicaccumulation.
Lingua originaleEnglish
pagine (da-a)2366-2376
Numero di pagine11
RivistaChemosphere
Volume65
Stato di pubblicazionePublished - 2006

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Chemistry(all)
  • Pollution
  • Health, Toxicology and Mutagenesis

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