Phytoavailability of antimony and heavy metals in arid regions: the case of the Wadley Sb district (San Luis, Potosí, Mexico).
Sci Total Environ
; 427-428: 115-25, 2012 Jun 15.
Article
em En
| MEDLINE
| ID: mdl-22560747
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.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Plantas
/
Metais Pesados
/
Poluentes Ambientais
/
Metaloides
/
Antimônio
País/Região como assunto:
Mexico
Idioma:
En
Revista:
Sci Total Environ
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
México
País de publicação:
Holanda