Atmospheric stability of arsines and the determination of their oxidative

Autores
Jakob, Ronit; Roth, Anja; Haas, Karsten; Krupp, Eva M.; Raab, Andrea; Smichowski, Patricia Nora; Gomez, Dario Gustavo; Feldmann, Jörg
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Biovolatilisation of arsenic as their arsines in the form of AsH 3, and mono-, di and trimethylarsine has often been determined under laboratory conditions. Although environmental point sources such as landfill sites or hot springs have been characterised, only limited knowledge is available on how widespread the formation of volatile methylated arsenic compounds are in the environment. Here we studied the atmospheric stability of the different arsines and quantified their oxidation products in atmospheric particulate matter (PM10) in two locations in Argentina. The atmospheric half-life of the arsines range from 19 weeks for AsH3 to 2 d for trimethylarsine (TMAs) at 20 °C in the dark, while during simulated daytime conditions the stability is reduced for all arsines and in particular for the methylated arsines by three orders of magnitude which suggests that TMAs can only be dispersed at night. At both locations the arsenic concentration was in all samples below 1 ng As m-3, which is considered as rural background for arsenic. The oxidation products, i.e. methylarsonate (MA), dimethylarsinate (DMA) and trimethylarsine oxide (TMAO) were identified by using HPLC-ICP-MS/ES-MS in more than 90% of the 49 PM10 samples taken from 8 sampling points at the two geographically different locations. TMAO was the predominate organoarsenicals in both locations (66 and 69%, respectively) while DMA was determined to be between 13 and 19% of all organoarsenicals at the two locations. The concentration of the organoarsenicals ranged from 4 to 60 pg As as TMAO m-3, while the maximum concentration for DMA and MA were 16 and 6 pg As m-3, respectively. No difference in terms of the concentration or distribution of the organoarsenicals in the PM10 samples was identified as significant. Since the two locations were different in climate and industrial impact and sampled in different seasons, these data suggest that methylated arsenicals do occur as background chemicals in the environment. Due to the low atmospheric stability of the methylated arsines, it is suggested that biovolatilization of arsenic as methylated arsines is a widespread phenomenon. More studies however are necessary to identify the major sources and determine the flux of the volatilization process in order to determine whether or not the process has environmental significance.
Fil: Jakob, Ronit. University of Aberdeen; Reino Unido
Fil: Roth, Anja. University of Aberdeen; Reino Unido
Fil: Haas, Karsten. University of Aberdeen; Reino Unido
Fil: Krupp, Eva M.. University of Aberdeen; Reino Unido
Fil: Raab, Andrea. University of Aberdeen; Reino Unido
Fil: Smichowski, Patricia Nora. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gomez, Dario Gustavo. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Feldmann, Jörg. University of Aberdeen; Reino Unido
Materia
ARSENIC
ATMOSPHERIC AEROSOLS
BIOVOLATILIZATION
SPECIATION
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:11336/100120

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network_name_str CONICET Digital (CONICET)
spelling Atmospheric stability of arsines and the determination of their oxidativeJakob, RonitRoth, AnjaHaas, KarstenKrupp, Eva M.Raab, AndreaSmichowski, Patricia NoraGomez, Dario GustavoFeldmann, JörgARSENICATMOSPHERIC AEROSOLSBIOVOLATILIZATIONSPECIATIONhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Biovolatilisation of arsenic as their arsines in the form of AsH 3, and mono-, di and trimethylarsine has often been determined under laboratory conditions. Although environmental point sources such as landfill sites or hot springs have been characterised, only limited knowledge is available on how widespread the formation of volatile methylated arsenic compounds are in the environment. Here we studied the atmospheric stability of the different arsines and quantified their oxidation products in atmospheric particulate matter (PM10) in two locations in Argentina. The atmospheric half-life of the arsines range from 19 weeks for AsH3 to 2 d for trimethylarsine (TMAs) at 20 °C in the dark, while during simulated daytime conditions the stability is reduced for all arsines and in particular for the methylated arsines by three orders of magnitude which suggests that TMAs can only be dispersed at night. At both locations the arsenic concentration was in all samples below 1 ng As m-3, which is considered as rural background for arsenic. The oxidation products, i.e. methylarsonate (MA), dimethylarsinate (DMA) and trimethylarsine oxide (TMAO) were identified by using HPLC-ICP-MS/ES-MS in more than 90% of the 49 PM10 samples taken from 8 sampling points at the two geographically different locations. TMAO was the predominate organoarsenicals in both locations (66 and 69%, respectively) while DMA was determined to be between 13 and 19% of all organoarsenicals at the two locations. The concentration of the organoarsenicals ranged from 4 to 60 pg As as TMAO m-3, while the maximum concentration for DMA and MA were 16 and 6 pg As m-3, respectively. No difference in terms of the concentration or distribution of the organoarsenicals in the PM10 samples was identified as significant. Since the two locations were different in climate and industrial impact and sampled in different seasons, these data suggest that methylated arsenicals do occur as background chemicals in the environment. Due to the low atmospheric stability of the methylated arsines, it is suggested that biovolatilization of arsenic as methylated arsines is a widespread phenomenon. More studies however are necessary to identify the major sources and determine the flux of the volatilization process in order to determine whether or not the process has environmental significance.Fil: Jakob, Ronit. University of Aberdeen; Reino UnidoFil: Roth, Anja. University of Aberdeen; Reino UnidoFil: Haas, Karsten. University of Aberdeen; Reino UnidoFil: Krupp, Eva M.. University of Aberdeen; Reino UnidoFil: Raab, Andrea. University of Aberdeen; Reino UnidoFil: Smichowski, Patricia Nora. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gomez, Dario Gustavo. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Feldmann, Jörg. University of Aberdeen; Reino UnidoRoyal Society of Chemistry2010-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/100120Jakob, Ronit; Roth, Anja; Haas, Karsten; Krupp, Eva M.; Raab, Andrea; et al.; Atmospheric stability of arsines and the determination of their oxidative; Royal Society of Chemistry; Journal Of Environmental Monitoring; 12; 2; 2-2010; 409-4161464-0325CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/b915867ginfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2010/EM/B915867Ginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:44:27Zoai:ri.conicet.gov.ar:11336/100120instacron: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 09:44:27.352CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Atmospheric stability of arsines and the determination of their oxidative
title Atmospheric stability of arsines and the determination of their oxidative
spellingShingle Atmospheric stability of arsines and the determination of their oxidative
Jakob, Ronit
ARSENIC
ATMOSPHERIC AEROSOLS
BIOVOLATILIZATION
SPECIATION
title_short Atmospheric stability of arsines and the determination of their oxidative
title_full Atmospheric stability of arsines and the determination of their oxidative
title_fullStr Atmospheric stability of arsines and the determination of their oxidative
title_full_unstemmed Atmospheric stability of arsines and the determination of their oxidative
title_sort Atmospheric stability of arsines and the determination of their oxidative
dc.creator.none.fl_str_mv Jakob, Ronit
Roth, Anja
Haas, Karsten
Krupp, Eva M.
Raab, Andrea
Smichowski, Patricia Nora
Gomez, Dario Gustavo
Feldmann, Jörg
author Jakob, Ronit
author_facet Jakob, Ronit
Roth, Anja
Haas, Karsten
Krupp, Eva M.
Raab, Andrea
Smichowski, Patricia Nora
Gomez, Dario Gustavo
Feldmann, Jörg
author_role author
author2 Roth, Anja
Haas, Karsten
Krupp, Eva M.
Raab, Andrea
Smichowski, Patricia Nora
Gomez, Dario Gustavo
Feldmann, Jörg
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv ARSENIC
ATMOSPHERIC AEROSOLS
BIOVOLATILIZATION
SPECIATION
topic ARSENIC
ATMOSPHERIC AEROSOLS
BIOVOLATILIZATION
SPECIATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Biovolatilisation of arsenic as their arsines in the form of AsH 3, and mono-, di and trimethylarsine has often been determined under laboratory conditions. Although environmental point sources such as landfill sites or hot springs have been characterised, only limited knowledge is available on how widespread the formation of volatile methylated arsenic compounds are in the environment. Here we studied the atmospheric stability of the different arsines and quantified their oxidation products in atmospheric particulate matter (PM10) in two locations in Argentina. The atmospheric half-life of the arsines range from 19 weeks for AsH3 to 2 d for trimethylarsine (TMAs) at 20 °C in the dark, while during simulated daytime conditions the stability is reduced for all arsines and in particular for the methylated arsines by three orders of magnitude which suggests that TMAs can only be dispersed at night. At both locations the arsenic concentration was in all samples below 1 ng As m-3, which is considered as rural background for arsenic. The oxidation products, i.e. methylarsonate (MA), dimethylarsinate (DMA) and trimethylarsine oxide (TMAO) were identified by using HPLC-ICP-MS/ES-MS in more than 90% of the 49 PM10 samples taken from 8 sampling points at the two geographically different locations. TMAO was the predominate organoarsenicals in both locations (66 and 69%, respectively) while DMA was determined to be between 13 and 19% of all organoarsenicals at the two locations. The concentration of the organoarsenicals ranged from 4 to 60 pg As as TMAO m-3, while the maximum concentration for DMA and MA were 16 and 6 pg As m-3, respectively. No difference in terms of the concentration or distribution of the organoarsenicals in the PM10 samples was identified as significant. Since the two locations were different in climate and industrial impact and sampled in different seasons, these data suggest that methylated arsenicals do occur as background chemicals in the environment. Due to the low atmospheric stability of the methylated arsines, it is suggested that biovolatilization of arsenic as methylated arsines is a widespread phenomenon. More studies however are necessary to identify the major sources and determine the flux of the volatilization process in order to determine whether or not the process has environmental significance.
Fil: Jakob, Ronit. University of Aberdeen; Reino Unido
Fil: Roth, Anja. University of Aberdeen; Reino Unido
Fil: Haas, Karsten. University of Aberdeen; Reino Unido
Fil: Krupp, Eva M.. University of Aberdeen; Reino Unido
Fil: Raab, Andrea. University of Aberdeen; Reino Unido
Fil: Smichowski, Patricia Nora. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gomez, Dario Gustavo. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Feldmann, Jörg. University of Aberdeen; Reino Unido
description Biovolatilisation of arsenic as their arsines in the form of AsH 3, and mono-, di and trimethylarsine has often been determined under laboratory conditions. Although environmental point sources such as landfill sites or hot springs have been characterised, only limited knowledge is available on how widespread the formation of volatile methylated arsenic compounds are in the environment. Here we studied the atmospheric stability of the different arsines and quantified their oxidation products in atmospheric particulate matter (PM10) in two locations in Argentina. The atmospheric half-life of the arsines range from 19 weeks for AsH3 to 2 d for trimethylarsine (TMAs) at 20 °C in the dark, while during simulated daytime conditions the stability is reduced for all arsines and in particular for the methylated arsines by three orders of magnitude which suggests that TMAs can only be dispersed at night. At both locations the arsenic concentration was in all samples below 1 ng As m-3, which is considered as rural background for arsenic. The oxidation products, i.e. methylarsonate (MA), dimethylarsinate (DMA) and trimethylarsine oxide (TMAO) were identified by using HPLC-ICP-MS/ES-MS in more than 90% of the 49 PM10 samples taken from 8 sampling points at the two geographically different locations. TMAO was the predominate organoarsenicals in both locations (66 and 69%, respectively) while DMA was determined to be between 13 and 19% of all organoarsenicals at the two locations. The concentration of the organoarsenicals ranged from 4 to 60 pg As as TMAO m-3, while the maximum concentration for DMA and MA were 16 and 6 pg As m-3, respectively. No difference in terms of the concentration or distribution of the organoarsenicals in the PM10 samples was identified as significant. Since the two locations were different in climate and industrial impact and sampled in different seasons, these data suggest that methylated arsenicals do occur as background chemicals in the environment. Due to the low atmospheric stability of the methylated arsines, it is suggested that biovolatilization of arsenic as methylated arsines is a widespread phenomenon. More studies however are necessary to identify the major sources and determine the flux of the volatilization process in order to determine whether or not the process has environmental significance.
publishDate 2010
dc.date.none.fl_str_mv 2010-02
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/11336/100120
Jakob, Ronit; Roth, Anja; Haas, Karsten; Krupp, Eva M.; Raab, Andrea; et al.; Atmospheric stability of arsines and the determination of their oxidative; Royal Society of Chemistry; Journal Of Environmental Monitoring; 12; 2; 2-2010; 409-416
1464-0325
CONICET Digital
CONICET
url http://hdl.handle.net/11336/100120
identifier_str_mv Jakob, Ronit; Roth, Anja; Haas, Karsten; Krupp, Eva M.; Raab, Andrea; et al.; Atmospheric stability of arsines and the determination of their oxidative; Royal Society of Chemistry; Journal Of Environmental Monitoring; 12; 2; 2-2010; 409-416
1464-0325
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1039/b915867g
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2010/EM/B915867G
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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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
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
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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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