Time and space variations in mercury and other trace element contents in olive tree leaves from the Almadén hg-mining district

Olive trees (Olea europaea, L.) are a very important agricultural resource for Spain in general and for the Castilla-La Mancha region in particular. These trees provide significant amounts of olive oil and olives for direct consumption. In this paper we discuss analytical constraints regarding the u...

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Autores: Amorós Ortiz-Villajos, José Ángel, García Navarro, Francisco Jesús, Moreno, Guadalupe, Higueras Higueras, Pablo León, Pérez de los Reyes, Caridad, Esbrí Víctor, José María
Tipo de recurso: artículo
Fecha de publicación:2012
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/2901
Acceso en línea:http://hdl.handle.net/10578/2901
Access Level:acceso abierto
Palabra clave:Ciencias de la tierra
Ciencias naturales y ciencias de la salud
Biología vegetal, animal y ecología
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spelling Time and space variations in mercury and other trace element contents in olive tree leaves from the Almadén hg-mining districtAmorós Ortiz-Villajos, José ÁngelGarcía Navarro, Francisco JesúsMoreno, GuadalupeHigueras Higueras, Pablo LeónPérez de los Reyes, CaridadEsbrí Víctor, José MaríaCiencias de la tierraCiencias naturales y ciencias de la saludBiología vegetal, animal y ecologíaOlive trees (Olea europaea, L.) are a very important agricultural resource for Spain in general and for the Castilla-La Mancha region in particular. These trees provide significant amounts of olive oil and olives for direct consumption. In this paper we discuss analytical constraints regarding the uptake of metallic trace elements from soils and other sources for olive-trees growing in the Almadén mercury mining district, the worlds largest producer of this element, which is currently inactive. The study was based on the analysis of these metals in soils and sets of olive trees of different ages from seven sites located at different distances from the main mercury sources. The results show good correlations between soil and leaf contents for major elements from the soils (Fe, Al, Mg and Ca), but very little or no relationship between metallic trace elements in soils and leaves. However, bioavailable mercury in the soil does correlate well with leaf contents, indicating a significant uptake of this fraction. Furthermore, detailed analysis of the temporal evolution of mercury contents in leaves compared with the temporal evolution of local atmospheric mercury contents, which decreased dramatically in recent years due to the reclamation of the main dump of the mine, indicates some influence of this parameter on the incorporation of mercury in the leaves and suggests a possible mechanism of atmospheric uptake of the element. Mercury contents in local olive oil and olives are slightly higher for samples taken from areas with also higher mercury concentrations in soils, but levels are well below maximum recommended levels for human food.201220122012info:eu-repo/semantics/articletext/plainapplication/pdfhttp://hdl.handle.net/10578/2901reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaEspañolinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/29012026-05-27T07:36:41Z
dc.title.none.fl_str_mv Time and space variations in mercury and other trace element contents in olive tree leaves from the Almadén hg-mining district
title Time and space variations in mercury and other trace element contents in olive tree leaves from the Almadén hg-mining district
spellingShingle Time and space variations in mercury and other trace element contents in olive tree leaves from the Almadén hg-mining district
Amorós Ortiz-Villajos, José Ángel
Ciencias de la tierra
Ciencias naturales y ciencias de la salud
Biología vegetal, animal y ecología
title_short Time and space variations in mercury and other trace element contents in olive tree leaves from the Almadén hg-mining district
title_full Time and space variations in mercury and other trace element contents in olive tree leaves from the Almadén hg-mining district
title_fullStr Time and space variations in mercury and other trace element contents in olive tree leaves from the Almadén hg-mining district
title_full_unstemmed Time and space variations in mercury and other trace element contents in olive tree leaves from the Almadén hg-mining district
title_sort Time and space variations in mercury and other trace element contents in olive tree leaves from the Almadén hg-mining district
dc.creator.none.fl_str_mv Amorós Ortiz-Villajos, José Ángel
García Navarro, Francisco Jesús
Moreno, Guadalupe
Higueras Higueras, Pablo León
Pérez de los Reyes, Caridad
Esbrí Víctor, José María
author Amorós Ortiz-Villajos, José Ángel
author_facet Amorós Ortiz-Villajos, José Ángel
García Navarro, Francisco Jesús
Moreno, Guadalupe
Higueras Higueras, Pablo León
Pérez de los Reyes, Caridad
Esbrí Víctor, José María
author_role author
author2 García Navarro, Francisco Jesús
Moreno, Guadalupe
Higueras Higueras, Pablo León
Pérez de los Reyes, Caridad
Esbrí Víctor, José María
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias de la tierra
Ciencias naturales y ciencias de la salud
Biología vegetal, animal y ecología
topic Ciencias de la tierra
Ciencias naturales y ciencias de la salud
Biología vegetal, animal y ecología
description Olive trees (Olea europaea, L.) are a very important agricultural resource for Spain in general and for the Castilla-La Mancha region in particular. These trees provide significant amounts of olive oil and olives for direct consumption. In this paper we discuss analytical constraints regarding the uptake of metallic trace elements from soils and other sources for olive-trees growing in the Almadén mercury mining district, the worlds largest producer of this element, which is currently inactive. The study was based on the analysis of these metals in soils and sets of olive trees of different ages from seven sites located at different distances from the main mercury sources. The results show good correlations between soil and leaf contents for major elements from the soils (Fe, Al, Mg and Ca), but very little or no relationship between metallic trace elements in soils and leaves. However, bioavailable mercury in the soil does correlate well with leaf contents, indicating a significant uptake of this fraction. Furthermore, detailed analysis of the temporal evolution of mercury contents in leaves compared with the temporal evolution of local atmospheric mercury contents, which decreased dramatically in recent years due to the reclamation of the main dump of the mine, indicates some influence of this parameter on the incorporation of mercury in the leaves and suggests a possible mechanism of atmospheric uptake of the element. Mercury contents in local olive oil and olives are slightly higher for samples taken from areas with also higher mercury concentrations in soils, but levels are well below maximum recommended levels for human food.
publishDate 2012
dc.date.none.fl_str_mv 2012
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10578/2901
url http://hdl.handle.net/10578/2901
dc.language.none.fl_str_mv Español
language_invalid_str_mv Español
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/plain
application/pdf
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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