Bioaccessibility of metals in soils surrounding two dismissed mining sites in Northern Italy

Elio Padoan*, Chiara Romè, Neha Mehta, Giovanna Antonella Dino, Domenico Antonio De Luca, Franco Ajmone-Marsan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Mining activities are one of the main contributors to metals contamination of soils, most often due to the inappropriate management of the mining residues. In Italy, hundreds of small mining sites are scattered around the mountainous areas, near small villages with fragile environments. Here, wastes and residues may have polluted the surrounding soils and become a threat to living organisms. We investigated two dismissed sites in Northern Italy with extractive wastes in unmanaged areas close to villages using bioaccessibility and size fractionation methods, focussing on particles that can potentially be eroded
and/or ingested (reactive and mobile particles offered a close insight into the lability of contaminants, as in both sites, a dispersion of metal contaminants through very fine particles in surrounding and downhill areas was observed, resulting in an increased risk to all living organism and for the environment.
Original languageEnglish
Pages (from-to)1349-1360
Number of pages12
JournalInternational Journal of Environmental Science and Technology
Volume18
Issue number6
DOIs
Publication statusPublished - 27 Sept 2020

Keywords

  • Bioavailability
  • Cadmium
  • Potentially toxic elements
  • Risk assessment
  • Zinc

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