Mechanisms of arsenic and fluoride release from Chacopampean sediments (Argentina)

Autores
Garcia, Maria Gabriela; Borgnino Bianchi, Laura Carolina; Bia, Gonzalo Luis; Depetris Gallino, Pedro Jose
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We have examined the sources and mechanisms that control the release of fluoride and arsenate from fluvial and loess sediments collected from the Chacopampean region, Argentina. Both types of sediments show slight differences regarding the mechamism of release. In fluvial sediments the release of fluoride seems to be controlled by the dissolution of primary F-bearing minerals, likely fluorapatite (FAp) and biotite. Much lower concentrations of As are also released from fluvial sediments under acidic conditions, due to the dissolution of As-bearing igneous FAp. Under more alkaline conditions, the release of both anions is the result of desorption from Fe(hydr)oxide coats. In loess sediments, F and As are released by dissolution of FAp present either as detritic grains or forming thin coats onto the volcanic ash, while arsenate is preferentially desorbed from Fe(hydr)oxide coats under alkaline conditions or by competitive desorption at acidic pH
Fil: Garcia, Maria Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Borgnino Bianchi, Laura Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Bia, Gonzalo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Depetris Gallino, Pedro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Materia
Fluorapatite
Dissolution
Desorption
Volcanic Shards
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/32074
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/32074
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Mechanisms of arsenic and fluoride release from Chacopampean sediments (Argentina)Garcia, Maria GabrielaBorgnino Bianchi, Laura CarolinaBia, Gonzalo LuisDepetris Gallino, Pedro JoseFluorapatiteDissolutionDesorptionVolcanic Shardshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1We have examined the sources and mechanisms that control the release of fluoride and arsenate from fluvial and loess sediments collected from the Chacopampean region, Argentina. Both types of sediments show slight differences regarding the mechamism of release. In fluvial sediments the release of fluoride seems to be controlled by the dissolution of primary F-bearing minerals, likely fluorapatite (FAp) and biotite. Much lower concentrations of As are also released from fluvial sediments under acidic conditions, due to the dissolution of As-bearing igneous FAp. Under more alkaline conditions, the release of both anions is the result of desorption from Fe(hydr)oxide coats. In loess sediments, F and As are released by dissolution of FAp present either as detritic grains or forming thin coats onto the volcanic ash, while arsenate is preferentially desorbed from Fe(hydr)oxide coats under alkaline conditions or by competitive desorption at acidic pHFil: Garcia, Maria Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Borgnino Bianchi, Laura Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Bia, Gonzalo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Depetris Gallino, Pedro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaInderscience Publishers2014-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/32074Depetris Gallino, Pedro Jose; Bia, Gonzalo Luis; Borgnino Bianchi, Laura Carolina; Garcia, Maria Gabriela; Mechanisms of arsenic and fluoride release from Chacopampean sediments (Argentina); Inderscience Publishers; International Journal of Environment and Health; 7; 1; 1-2014; 41-571743-4963CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.inderscience.com/info/inarticle.php?artid=60122info:eu-repo/semantics/altIdentifier/doi/10.1504/IJENVH.2014.060122info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:57:12Zoai:ri.conicet.gov.ar:11336/32074instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:57:12.877CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Mechanisms of arsenic and fluoride release from Chacopampean sediments (Argentina)
title Mechanisms of arsenic and fluoride release from Chacopampean sediments (Argentina)
spellingShingle Mechanisms of arsenic and fluoride release from Chacopampean sediments (Argentina)
Garcia, Maria Gabriela
Fluorapatite
Dissolution
Desorption
Volcanic Shards
title_short Mechanisms of arsenic and fluoride release from Chacopampean sediments (Argentina)
title_full Mechanisms of arsenic and fluoride release from Chacopampean sediments (Argentina)
title_fullStr Mechanisms of arsenic and fluoride release from Chacopampean sediments (Argentina)
title_full_unstemmed Mechanisms of arsenic and fluoride release from Chacopampean sediments (Argentina)
title_sort Mechanisms of arsenic and fluoride release from Chacopampean sediments (Argentina)
dc.creator.none.fl_str_mv Garcia, Maria Gabriela
Borgnino Bianchi, Laura Carolina
Bia, Gonzalo Luis
Depetris Gallino, Pedro Jose
author Garcia, Maria Gabriela
author_facet Garcia, Maria Gabriela
Borgnino Bianchi, Laura Carolina
Bia, Gonzalo Luis
Depetris Gallino, Pedro Jose
author_role author
author2 Borgnino Bianchi, Laura Carolina
Bia, Gonzalo Luis
Depetris Gallino, Pedro Jose
author2_role author
author
author
dc.subject.none.fl_str_mv Fluorapatite
Dissolution
Desorption
Volcanic Shards
topic Fluorapatite
Dissolution
Desorption
Volcanic Shards
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We have examined the sources and mechanisms that control the release of fluoride and arsenate from fluvial and loess sediments collected from the Chacopampean region, Argentina. Both types of sediments show slight differences regarding the mechamism of release. In fluvial sediments the release of fluoride seems to be controlled by the dissolution of primary F-bearing minerals, likely fluorapatite (FAp) and biotite. Much lower concentrations of As are also released from fluvial sediments under acidic conditions, due to the dissolution of As-bearing igneous FAp. Under more alkaline conditions, the release of both anions is the result of desorption from Fe(hydr)oxide coats. In loess sediments, F and As are released by dissolution of FAp present either as detritic grains or forming thin coats onto the volcanic ash, while arsenate is preferentially desorbed from Fe(hydr)oxide coats under alkaline conditions or by competitive desorption at acidic pH
Fil: Garcia, Maria Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Borgnino Bianchi, Laura Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Bia, Gonzalo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Depetris Gallino, Pedro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
description We have examined the sources and mechanisms that control the release of fluoride and arsenate from fluvial and loess sediments collected from the Chacopampean region, Argentina. Both types of sediments show slight differences regarding the mechamism of release. In fluvial sediments the release of fluoride seems to be controlled by the dissolution of primary F-bearing minerals, likely fluorapatite (FAp) and biotite. Much lower concentrations of As are also released from fluvial sediments under acidic conditions, due to the dissolution of As-bearing igneous FAp. Under more alkaline conditions, the release of both anions is the result of desorption from Fe(hydr)oxide coats. In loess sediments, F and As are released by dissolution of FAp present either as detritic grains or forming thin coats onto the volcanic ash, while arsenate is preferentially desorbed from Fe(hydr)oxide coats under alkaline conditions or by competitive desorption at acidic pH
publishDate 2014
dc.date.none.fl_str_mv 2014-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/32074
Depetris Gallino, Pedro Jose; Bia, Gonzalo Luis; Borgnino Bianchi, Laura Carolina; Garcia, Maria Gabriela; Mechanisms of arsenic and fluoride release from Chacopampean sediments (Argentina); Inderscience Publishers; International Journal of Environment and Health; 7; 1; 1-2014; 41-57
1743-4963
CONICET Digital
CONICET
url http://hdl.handle.net/11336/32074
identifier_str_mv Depetris Gallino, Pedro Jose; Bia, Gonzalo Luis; Borgnino Bianchi, Laura Carolina; Garcia, Maria Gabriela; Mechanisms of arsenic and fluoride release from Chacopampean sediments (Argentina); Inderscience Publishers; International Journal of Environment and Health; 7; 1; 1-2014; 41-57
1743-4963
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.inderscience.com/info/inarticle.php?artid=60122
info:eu-repo/semantics/altIdentifier/doi/10.1504/IJENVH.2014.060122
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Inderscience Publishers
publisher.none.fl_str_mv Inderscience Publishers
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846083108760190976
score 13.22299

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