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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/265447
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/265447 |
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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 Técnicas2025-09-29T09:33:03Zoai: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:34982025-09-29 09:33:04.111CONICET 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 |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |