Ozone depletion due to dust release of iodine in the free troposphere

Autores
Koenig, Theodore K.; Volkamer, Rainer; Apel, Eric C.; Bresch, James F.; Cuevas, Carlos A.; Dix, Barbara; Eloranta, Edwin W.; Fernandez, Rafael Pedro; Hall, Samuel R.; Hornbrook, Rebecca S.; Pierce, R. Bradley; Reeves, J. Michael; Saiz López, Alfonso; Ullmann, Kirk
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Iodine is an atmospheric trace element emitted from oceans that efficiently destroys ozone (O3). Low O3 in airborne dust layers is frequently observed but poorly understood. We show that dust is a source of gas-phase iodine, indicated by aircraft observations of iodine monoxide (IO) radicals inside lofted dust layers from the Atacama and Sechura Deserts that are up to a factor of 10 enhanced over background. Gas-phase iodine photochemistry, commensurate with observed IO, is needed to explain the low O3 inside these dust layers (below 15 ppbv; up to 75% depleted). The added dust iodine can explain decreases in O3 of 8% regionally and affects surface air quality. Our data suggest that iodate reduction to form volatile iodine species is a missing process in the geochemical iodine cycle and presents an unrecognized aeolian source of iodine. Atmospheric iodine has tripled since 1950 and affects ozone layer recovery and particle formation.
Fil: Koenig, Theodore K.. State University of Colorado at Boulder; Estados Unidos. Cooperative Institute for Research in Environmental Sciences; Estados Unidos
Fil: Volkamer, Rainer. State University of Colorado at Boulder; Estados Unidos. Cooperative Institute for Research in Environmental Sciences; Estados Unidos
Fil: Apel, Eric C.. National Center for Atmospheric Research; Estados Unidos
Fil: Bresch, James F.. National Center for Atmospheric Research; Estados Unidos
Fil: Cuevas, Carlos A.. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
Fil: Dix, Barbara. State University of Colorado at Boulder; Estados Unidos. Cooperative Institute for Research in Environmental Sciences; Estados Unidos
Fil: Eloranta, Edwin W.. University of Wisconsin; Estados Unidos
Fil: Fernandez, Rafael Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina
Fil: Hall, Samuel R.. National Center for Atmospheric Research; Estados Unidos
Fil: Hornbrook, Rebecca S.. National Center for Atmospheric Research; Estados Unidos
Fil: Pierce, R. Bradley. National Environmental Satellite, Data, and Information Service; Estados Unidos
Fil: Reeves, J. Michael. National Center for Atmospheric Research; Estados Unidos
Fil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
Fil: Ullmann, Kirk. National Center for Atmospheric Research; Estados Unidos
Materia
OZONE DEPLETION
DUST RELEASE
TORERO
IODINE CHEMISTRY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/173294
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Ozone depletion due to dust release of iodine in the free troposphereKoenig, Theodore K.Volkamer, RainerApel, Eric C.Bresch, James F.Cuevas, Carlos A.Dix, BarbaraEloranta, Edwin W.Fernandez, Rafael PedroHall, Samuel R.Hornbrook, Rebecca S.Pierce, R. BradleyReeves, J. MichaelSaiz López, AlfonsoUllmann, KirkOZONE DEPLETIONDUST RELEASETOREROIODINE CHEMISTRYhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Iodine is an atmospheric trace element emitted from oceans that efficiently destroys ozone (O3). Low O3 in airborne dust layers is frequently observed but poorly understood. We show that dust is a source of gas-phase iodine, indicated by aircraft observations of iodine monoxide (IO) radicals inside lofted dust layers from the Atacama and Sechura Deserts that are up to a factor of 10 enhanced over background. Gas-phase iodine photochemistry, commensurate with observed IO, is needed to explain the low O3 inside these dust layers (below 15 ppbv; up to 75% depleted). The added dust iodine can explain decreases in O3 of 8% regionally and affects surface air quality. Our data suggest that iodate reduction to form volatile iodine species is a missing process in the geochemical iodine cycle and presents an unrecognized aeolian source of iodine. Atmospheric iodine has tripled since 1950 and affects ozone layer recovery and particle formation.Fil: Koenig, Theodore K.. State University of Colorado at Boulder; Estados Unidos. Cooperative Institute for Research in Environmental Sciences; Estados UnidosFil: Volkamer, Rainer. State University of Colorado at Boulder; Estados Unidos. Cooperative Institute for Research in Environmental Sciences; Estados UnidosFil: Apel, Eric C.. National Center for Atmospheric Research; Estados UnidosFil: Bresch, James F.. National Center for Atmospheric Research; Estados UnidosFil: Cuevas, Carlos A.. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; EspañaFil: Dix, Barbara. State University of Colorado at Boulder; Estados Unidos. Cooperative Institute for Research in Environmental Sciences; Estados UnidosFil: Eloranta, Edwin W.. University of Wisconsin; Estados UnidosFil: Fernandez, Rafael Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; ArgentinaFil: Hall, Samuel R.. National Center for Atmospheric Research; Estados UnidosFil: Hornbrook, Rebecca S.. National Center for Atmospheric Research; Estados UnidosFil: Pierce, R. Bradley. National Environmental Satellite, Data, and Information Service; Estados UnidosFil: Reeves, J. Michael. National Center for Atmospheric Research; Estados UnidosFil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; EspañaFil: Ullmann, Kirk. National Center for Atmospheric Research; Estados UnidosScience Advances is the American Association for the Advancement of Science2021-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/173294Koenig, Theodore K.; Volkamer, Rainer; Apel, Eric C.; Bresch, James F.; Cuevas, Carlos A.; et al.; Ozone depletion due to dust release of iodine in the free troposphere; Science Advances is the American Association for the Advancement of Science; Science Advances; 7; 52; 12-2021; 1-112375-2548CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.science.org/doi/10.1126/sciadv.abj6544info:eu-repo/semantics/altIdentifier/doi/10.1126/sciadv.abj6544info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:04:10Zoai:ri.conicet.gov.ar:11336/173294instacron: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:34982025-09-03 10:04:11.196CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ozone depletion due to dust release of iodine in the free troposphere
title Ozone depletion due to dust release of iodine in the free troposphere
spellingShingle Ozone depletion due to dust release of iodine in the free troposphere
Koenig, Theodore K.
OZONE DEPLETION
DUST RELEASE
TORERO
IODINE CHEMISTRY
title_short Ozone depletion due to dust release of iodine in the free troposphere
title_full Ozone depletion due to dust release of iodine in the free troposphere
title_fullStr Ozone depletion due to dust release of iodine in the free troposphere
title_full_unstemmed Ozone depletion due to dust release of iodine in the free troposphere
title_sort Ozone depletion due to dust release of iodine in the free troposphere
dc.creator.none.fl_str_mv Koenig, Theodore K.
Volkamer, Rainer
Apel, Eric C.
Bresch, James F.
Cuevas, Carlos A.
Dix, Barbara
Eloranta, Edwin W.
Fernandez, Rafael Pedro
Hall, Samuel R.
Hornbrook, Rebecca S.
Pierce, R. Bradley
Reeves, J. Michael
Saiz López, Alfonso
Ullmann, Kirk
author Koenig, Theodore K.
author_facet Koenig, Theodore K.
Volkamer, Rainer
Apel, Eric C.
Bresch, James F.
Cuevas, Carlos A.
Dix, Barbara
Eloranta, Edwin W.
Fernandez, Rafael Pedro
Hall, Samuel R.
Hornbrook, Rebecca S.
Pierce, R. Bradley
Reeves, J. Michael
Saiz López, Alfonso
Ullmann, Kirk
author_role author
author2 Volkamer, Rainer
Apel, Eric C.
Bresch, James F.
Cuevas, Carlos A.
Dix, Barbara
Eloranta, Edwin W.
Fernandez, Rafael Pedro
Hall, Samuel R.
Hornbrook, Rebecca S.
Pierce, R. Bradley
Reeves, J. Michael
Saiz López, Alfonso
Ullmann, Kirk
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv OZONE DEPLETION
DUST RELEASE
TORERO
IODINE CHEMISTRY
topic OZONE DEPLETION
DUST RELEASE
TORERO
IODINE CHEMISTRY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Iodine is an atmospheric trace element emitted from oceans that efficiently destroys ozone (O3). Low O3 in airborne dust layers is frequently observed but poorly understood. We show that dust is a source of gas-phase iodine, indicated by aircraft observations of iodine monoxide (IO) radicals inside lofted dust layers from the Atacama and Sechura Deserts that are up to a factor of 10 enhanced over background. Gas-phase iodine photochemistry, commensurate with observed IO, is needed to explain the low O3 inside these dust layers (below 15 ppbv; up to 75% depleted). The added dust iodine can explain decreases in O3 of 8% regionally and affects surface air quality. Our data suggest that iodate reduction to form volatile iodine species is a missing process in the geochemical iodine cycle and presents an unrecognized aeolian source of iodine. Atmospheric iodine has tripled since 1950 and affects ozone layer recovery and particle formation.
Fil: Koenig, Theodore K.. State University of Colorado at Boulder; Estados Unidos. Cooperative Institute for Research in Environmental Sciences; Estados Unidos
Fil: Volkamer, Rainer. State University of Colorado at Boulder; Estados Unidos. Cooperative Institute for Research in Environmental Sciences; Estados Unidos
Fil: Apel, Eric C.. National Center for Atmospheric Research; Estados Unidos
Fil: Bresch, James F.. National Center for Atmospheric Research; Estados Unidos
Fil: Cuevas, Carlos A.. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
Fil: Dix, Barbara. State University of Colorado at Boulder; Estados Unidos. Cooperative Institute for Research in Environmental Sciences; Estados Unidos
Fil: Eloranta, Edwin W.. University of Wisconsin; Estados Unidos
Fil: Fernandez, Rafael Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina
Fil: Hall, Samuel R.. National Center for Atmospheric Research; Estados Unidos
Fil: Hornbrook, Rebecca S.. National Center for Atmospheric Research; Estados Unidos
Fil: Pierce, R. Bradley. National Environmental Satellite, Data, and Information Service; Estados Unidos
Fil: Reeves, J. Michael. National Center for Atmospheric Research; Estados Unidos
Fil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
Fil: Ullmann, Kirk. National Center for Atmospheric Research; Estados Unidos
description Iodine is an atmospheric trace element emitted from oceans that efficiently destroys ozone (O3). Low O3 in airborne dust layers is frequently observed but poorly understood. We show that dust is a source of gas-phase iodine, indicated by aircraft observations of iodine monoxide (IO) radicals inside lofted dust layers from the Atacama and Sechura Deserts that are up to a factor of 10 enhanced over background. Gas-phase iodine photochemistry, commensurate with observed IO, is needed to explain the low O3 inside these dust layers (below 15 ppbv; up to 75% depleted). The added dust iodine can explain decreases in O3 of 8% regionally and affects surface air quality. Our data suggest that iodate reduction to form volatile iodine species is a missing process in the geochemical iodine cycle and presents an unrecognized aeolian source of iodine. Atmospheric iodine has tripled since 1950 and affects ozone layer recovery and particle formation.
publishDate 2021
dc.date.none.fl_str_mv 2021-12
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/11336/173294
Koenig, Theodore K.; Volkamer, Rainer; Apel, Eric C.; Bresch, James F.; Cuevas, Carlos A.; et al.; Ozone depletion due to dust release of iodine in the free troposphere; Science Advances is the American Association for the Advancement of Science; Science Advances; 7; 52; 12-2021; 1-11
2375-2548
CONICET Digital
CONICET
url http://hdl.handle.net/11336/173294
identifier_str_mv Koenig, Theodore K.; Volkamer, Rainer; Apel, Eric C.; Bresch, James F.; Cuevas, Carlos A.; et al.; Ozone depletion due to dust release of iodine in the free troposphere; Science Advances is the American Association for the Advancement of Science; Science Advances; 7; 52; 12-2021; 1-11
2375-2548
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.science.org/doi/10.1126/sciadv.abj6544
info:eu-repo/semantics/altIdentifier/doi/10.1126/sciadv.abj6544
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Science Advances is the American Association for the Advancement of Science
publisher.none.fl_str_mv Science Advances is the American Association for the Advancement of Science
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
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score 13.13397

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