Phytoavailability of antimony and heavy metals in arid regions: The case of the Wadley Sb district (San Luis, Potosí, Mexico)

G. Levresse, G. Lopez, J. Tritlla, E. Cardellach López, A. Carrillo Chavez, E. Mascuñano Salvador, A. Soler, M. Corbella, L. G.Hernández Sandoval, R. Corona-Esquivel

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23 Citations (Scopus)

Abstract

This paper presents original results on the Sb and heavy metals contents in sediments and waste tailings, plants and water from the giant Wadley antimony mine district (San Luis Potosí State, Mexico). The dominant antimony phases in mining wastes are stibiconite, montroydite and minor hermimorphite. The waste tailings contain high concentrations of metals and metalloids (antimony, iron, zinc, arsenic, copper, and mercury). Manganese, copper, zinc, and antimony contents exceed the quality guidelines values for groundwater, plants and for waste tailings. Results indicate that peak accumulation is seasonal due to the concentration by high metabolism plants as Solanaceae Nicotiana. The metal phytoavailability in waste tailings is highly dependant on the metal speciation, its capability to be transported in water and, more particularly, the plant metabolism efficiency. © 2012 Elsevier B.V.
Original languageEnglish
Pages (from-to)115-125
JournalScience of the Total Environment
Volume427-428
DOIs
Publication statusPublished - 15 Jul 2012

Keywords

  • Antimony
  • Heavy metals
  • México
  • Phytoavailability
  • Plants
  • Tailings

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