Anthropogenic short-lived halogens increase human exposure to mercury contamination due to enhanced mercury oxidation over continents

Autores
Fu, Xiao; Sun, Xianyi; Travnikov, Oleg; Li, Qinyi; Qin, Chuang; Cuevas, Carlos Alberto; Fernandez, Rafael Pedro; Mahajan, Anoop S.; Wang, Shuxiao; Wang, Tao; Saiz López, Alfonso
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Mercury (Hg) is a contaminant of global concern, and an accurate understanding of its atmospheric fate is needed to assess its risks to humans and ecosystem health. Atmospheric oxidation of Hg is key to the deposition of this toxic metal to the Earth’s surface. Short-lived halogens (SLHs) can provide halogen radicals to directly oxidize Hg and perturb the budget of other Hg oxidants (e.g., OH and O3). In addition to known ocean emissions of halogens, recent observational evidence has revealed abundant anthropogenic emissions of SLHs over continental areas. However, the impacts of anthropogenic SLHs emissions on the atmospheric fate of Hg and human exposure to Hg contamination remain unknown. Here, we show that the inclusion of anthropogenic SLHs substantially increased local Hg oxidation and, consequently, deposition in/near Hg continental source regions by up to 20%, thereby decreasing Hg export from source regions to clean environments. Our modeling results indicated that the inclusion of anthropogenic SLHs can lead to higher Hg exposure in/near Hg source regions than estimated in previous assessments, e.g., with increases of 8.7% and 7.5% in China and India, respectively, consequently leading to higher Hg-related human health risks. These results highlight the urgent need for policymakers to reduce local Hg and SLHs emissions. We conclude that the substantial impacts of anthropogenic SLHs emissions should be included in model assessments of the Hg budget and associated health risks at local and global scales.
Fil: Fu, Xiao. Tsinghua University; China
Fil: Sun, Xianyi. Tsinghua University; China
Fil: Travnikov, Oleg. Joef Stefan Institute; Eslovenia
Fil: Li, Qinyi. The Hong Kong Polytechnic University; Hong Kong. Shandong University; China. Consejo Superior de Investigaciones Científicas; España
Fil: Qin, Chuang. Tsinghua University; China
Fil: Cuevas, Carlos Alberto. Consejo Superior de Investigaciones Científicas; España
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: Mahajan, Anoop S.. Indian Institute Of Tropical Meteorology; India
Fil: Wang, Shuxiao. Tsinghua University; China
Fil: Wang, Tao. Hong Kong Polytechnic University; Hong Kong
Fil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas; España
Materia
Mercury Exposition
SLH chemistry
Air Quality
Mercury Emissions
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/265447
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/265447
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Anthropogenic short-lived halogens increase human exposure to mercury contamination due to enhanced mercury oxidation over continentsFu, XiaoSun, XianyiTravnikov, OlegLi, QinyiQin, ChuangCuevas, Carlos AlbertoFernandez, Rafael PedroMahajan, Anoop S.Wang, ShuxiaoWang, TaoSaiz López, AlfonsoMercury ExpositionSLH chemistryAir QualityMercury Emissionshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Mercury (Hg) is a contaminant of global concern, and an accurate understanding of its atmospheric fate is needed to assess its risks to humans and ecosystem health. Atmospheric oxidation of Hg is key to the deposition of this toxic metal to the Earth’s surface. Short-lived halogens (SLHs) can provide halogen radicals to directly oxidize Hg and perturb the budget of other Hg oxidants (e.g., OH and O3). In addition to known ocean emissions of halogens, recent observational evidence has revealed abundant anthropogenic emissions of SLHs over continental areas. However, the impacts of anthropogenic SLHs emissions on the atmospheric fate of Hg and human exposure to Hg contamination remain unknown. Here, we show that the inclusion of anthropogenic SLHs substantially increased local Hg oxidation and, consequently, deposition in/near Hg continental source regions by up to 20%, thereby decreasing Hg export from source regions to clean environments. Our modeling results indicated that the inclusion of anthropogenic SLHs can lead to higher Hg exposure in/near Hg source regions than estimated in previous assessments, e.g., with increases of 8.7% and 7.5% in China and India, respectively, consequently leading to higher Hg-related human health risks. These results highlight the urgent need for policymakers to reduce local Hg and SLHs emissions. We conclude that the substantial impacts of anthropogenic SLHs emissions should be included in model assessments of the Hg budget and associated health risks at local and global scales.Fil: Fu, Xiao. Tsinghua University; ChinaFil: Sun, Xianyi. Tsinghua University; ChinaFil: Travnikov, Oleg. Joef Stefan Institute; EsloveniaFil: Li, Qinyi. The Hong Kong Polytechnic University; Hong Kong. Shandong University; China. Consejo Superior de Investigaciones Científicas; EspañaFil: Qin, Chuang. Tsinghua University; ChinaFil: Cuevas, Carlos Alberto. Consejo Superior de Investigaciones Científicas; EspañaFil: 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: Mahajan, Anoop S.. Indian Institute Of Tropical Meteorology; IndiaFil: Wang, Shuxiao. Tsinghua University; ChinaFil: Wang, Tao. Hong Kong Polytechnic University; Hong KongFil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas; EspañaNational Academy of Sciences2024-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/265447Fu, Xiao; Sun, Xianyi; Travnikov, Oleg; Li, Qinyi; Qin, Chuang; et al.; Anthropogenic short-lived halogens increase human exposure to mercury contamination due to enhanced mercury oxidation over continents; National Academy of Sciences; Proceedings of the National Academy of Sciences of The United States of America; 121; 12; 3-2024; 1-80027-8424CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pnas.org/doi/10.1073/pnas.2315058121info:eu-repo/semantics/altIdentifier/doi/10.1073/pnas.2315058121info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:21:00Zoai:ri.conicet.gov.ar:11336/265447instacron: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 14:21:00.623CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Anthropogenic short-lived halogens increase human exposure to mercury contamination due to enhanced mercury oxidation over continents
title Anthropogenic short-lived halogens increase human exposure to mercury contamination due to enhanced mercury oxidation over continents
spellingShingle Anthropogenic short-lived halogens increase human exposure to mercury contamination due to enhanced mercury oxidation over continents
Fu, Xiao
Mercury Exposition
SLH chemistry
Air Quality
Mercury Emissions
title_short Anthropogenic short-lived halogens increase human exposure to mercury contamination due to enhanced mercury oxidation over continents
title_full Anthropogenic short-lived halogens increase human exposure to mercury contamination due to enhanced mercury oxidation over continents
title_fullStr Anthropogenic short-lived halogens increase human exposure to mercury contamination due to enhanced mercury oxidation over continents
title_full_unstemmed Anthropogenic short-lived halogens increase human exposure to mercury contamination due to enhanced mercury oxidation over continents
title_sort Anthropogenic short-lived halogens increase human exposure to mercury contamination due to enhanced mercury oxidation over continents
dc.creator.none.fl_str_mv Fu, Xiao
Sun, Xianyi
Travnikov, Oleg
Li, Qinyi
Qin, Chuang
Cuevas, Carlos Alberto
Fernandez, Rafael Pedro
Mahajan, Anoop S.
Wang, Shuxiao
Wang, Tao
Saiz López, Alfonso
author Fu, Xiao
author_facet Fu, Xiao
Sun, Xianyi
Travnikov, Oleg
Li, Qinyi
Qin, Chuang
Cuevas, Carlos Alberto
Fernandez, Rafael Pedro
Mahajan, Anoop S.
Wang, Shuxiao
Wang, Tao
Saiz López, Alfonso
author_role author
author2 Sun, Xianyi
Travnikov, Oleg
Li, Qinyi
Qin, Chuang
Cuevas, Carlos Alberto
Fernandez, Rafael Pedro
Mahajan, Anoop S.
Wang, Shuxiao
Wang, Tao
Saiz López, Alfonso
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Mercury Exposition
SLH chemistry
Air Quality
Mercury Emissions
topic Mercury Exposition
SLH chemistry
Air Quality
Mercury Emissions
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Mercury (Hg) is a contaminant of global concern, and an accurate understanding of its atmospheric fate is needed to assess its risks to humans and ecosystem health. Atmospheric oxidation of Hg is key to the deposition of this toxic metal to the Earth’s surface. Short-lived halogens (SLHs) can provide halogen radicals to directly oxidize Hg and perturb the budget of other Hg oxidants (e.g., OH and O3). In addition to known ocean emissions of halogens, recent observational evidence has revealed abundant anthropogenic emissions of SLHs over continental areas. However, the impacts of anthropogenic SLHs emissions on the atmospheric fate of Hg and human exposure to Hg contamination remain unknown. Here, we show that the inclusion of anthropogenic SLHs substantially increased local Hg oxidation and, consequently, deposition in/near Hg continental source regions by up to 20%, thereby decreasing Hg export from source regions to clean environments. Our modeling results indicated that the inclusion of anthropogenic SLHs can lead to higher Hg exposure in/near Hg source regions than estimated in previous assessments, e.g., with increases of 8.7% and 7.5% in China and India, respectively, consequently leading to higher Hg-related human health risks. These results highlight the urgent need for policymakers to reduce local Hg and SLHs emissions. We conclude that the substantial impacts of anthropogenic SLHs emissions should be included in model assessments of the Hg budget and associated health risks at local and global scales.
Fil: Fu, Xiao. Tsinghua University; China
Fil: Sun, Xianyi. Tsinghua University; China
Fil: Travnikov, Oleg. Joef Stefan Institute; Eslovenia
Fil: Li, Qinyi. The Hong Kong Polytechnic University; Hong Kong. Shandong University; China. Consejo Superior de Investigaciones Científicas; España
Fil: Qin, Chuang. Tsinghua University; China
Fil: Cuevas, Carlos Alberto. Consejo Superior de Investigaciones Científicas; España
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: Mahajan, Anoop S.. Indian Institute Of Tropical Meteorology; India
Fil: Wang, Shuxiao. Tsinghua University; China
Fil: Wang, Tao. Hong Kong Polytechnic University; Hong Kong
Fil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas; España
description Mercury (Hg) is a contaminant of global concern, and an accurate understanding of its atmospheric fate is needed to assess its risks to humans and ecosystem health. Atmospheric oxidation of Hg is key to the deposition of this toxic metal to the Earth’s surface. Short-lived halogens (SLHs) can provide halogen radicals to directly oxidize Hg and perturb the budget of other Hg oxidants (e.g., OH and O3). In addition to known ocean emissions of halogens, recent observational evidence has revealed abundant anthropogenic emissions of SLHs over continental areas. However, the impacts of anthropogenic SLHs emissions on the atmospheric fate of Hg and human exposure to Hg contamination remain unknown. Here, we show that the inclusion of anthropogenic SLHs substantially increased local Hg oxidation and, consequently, deposition in/near Hg continental source regions by up to 20%, thereby decreasing Hg export from source regions to clean environments. Our modeling results indicated that the inclusion of anthropogenic SLHs can lead to higher Hg exposure in/near Hg source regions than estimated in previous assessments, e.g., with increases of 8.7% and 7.5% in China and India, respectively, consequently leading to higher Hg-related human health risks. These results highlight the urgent need for policymakers to reduce local Hg and SLHs emissions. We conclude that the substantial impacts of anthropogenic SLHs emissions should be included in model assessments of the Hg budget and associated health risks at local and global scales.
publishDate 2024
dc.date.none.fl_str_mv 2024-03
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/11336/265447
Fu, Xiao; Sun, Xianyi; Travnikov, Oleg; Li, Qinyi; Qin, Chuang; et al.; Anthropogenic short-lived halogens increase human exposure to mercury contamination due to enhanced mercury oxidation over continents; National Academy of Sciences; Proceedings of the National Academy of Sciences of The United States of America; 121; 12; 3-2024; 1-8
0027-8424
CONICET Digital
CONICET
url http://hdl.handle.net/11336/265447
identifier_str_mv Fu, Xiao; Sun, Xianyi; Travnikov, Oleg; Li, Qinyi; Qin, Chuang; et al.; Anthropogenic short-lived halogens increase human exposure to mercury contamination due to enhanced mercury oxidation over continents; National Academy of Sciences; Proceedings of the National Academy of Sciences of The United States of America; 121; 12; 3-2024; 1-8
0027-8424
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://pnas.org/doi/10.1073/pnas.2315058121
info:eu-repo/semantics/altIdentifier/doi/10.1073/pnas.2315058121
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv National Academy of Sciences
publisher.none.fl_str_mv National Academy of Sciences
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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