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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/32074
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T10:01:11Zoai: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:34982025-09-29 10:01:11.658CONICET 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) |
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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 |
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1844613802859954176 |
score |
13.070432 |