Seven-year monitoring of mercury in wet precipitation and atmosphere at the Amsterdam Island GMOS station
Mercury (Hg) fate and transport research requires more effort to obtain a deep knowledge of its biogeochemical cycle, particularly in the Southern Hemisphere and Tropics that are still missing of distributed monitoring sites. Continuous monitoring of atmospheric Hg concentrations and trend worldwide...
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ftpubmed:oai:pubmedcentral.nih.gov:10068122 2023-05-15T13:22:27+02:00 Seven-year monitoring of mercury in wet precipitation and atmosphere at the Amsterdam Island GMOS station Tassone, Antonella Magand, Olivier Naccarato, Attilio Martino, Maria Amico, Domenico Sprovieri, Francesca Leuridan, Hippolyte Bertrand, Yann Ramonet, Michel Pirrone, Nicola Dommergue, Aurelien 2023-03-18 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10068122/ http://www.ncbi.nlm.nih.gov/pubmed/37020937 https://doi.org/10.1016/j.heliyon.2023.e14608 en eng Elsevier http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10068122/ http://www.ncbi.nlm.nih.gov/pubmed/37020937 http://dx.doi.org/10.1016/j.heliyon.2023.e14608 ©2023PublishedbyElsevierLtd. Heliyon Research Article Text 2023 ftpubmed https://doi.org/10.1016/j.heliyon.2023.e14608 2023-04-09T00:45:02Z Mercury (Hg) fate and transport research requires more effort to obtain a deep knowledge of its biogeochemical cycle, particularly in the Southern Hemisphere and Tropics that are still missing of distributed monitoring sites. Continuous monitoring of atmospheric Hg concentrations and trend worldwide is relevant for the effectiveness evaluation of the Minamata Convention on Mercury (MCM) actions. In this context, Gaseous Elemental Mercury (GEM) and total mercury (THg) in precipitations were monitored from 2013 to 2019 at the Amsterdam Island Observatory (AMS - 37°48′S, 77°34′E) to provide insights into the Hg pathway in the remote southern Indian Ocean, also considering ancillary dataset of Rn-222, CO(2), CO, and CH(4). GEM average concentration was 1.06 ± 0.07 ng m(−3), with a slight increase during the austral winter due to both higher wind speed over the surface ocean and contributions from southern Africa. In wet depositions, THg average concentration was 2.39 ± 1.17 ng L(−1), whereas the annual flux averaged 2.04 ± 0.80 μg m(−2) year(−1). In general, both GEM and Volume-Weighted Mean Concentration (VWMC) of THg did not show an increasing/decreasing trend over the seven-year period, suggesting a substantial lack of evolution about emission of Hg reaching AMS. Air masses Cluster Analysis and Potential Source Contribution Function showed that oceanic evasion was the main Hg contributor at AMS, while further contributions were attributable to long-range transport events from southern Africa, particularly when the occurrence of El Niño increased the frequency of wildfires. Text Amsterdam Island PubMed Central (PMC) Austral Indian Heliyon 9 3 e14608 |
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Research Article Tassone, Antonella Magand, Olivier Naccarato, Attilio Martino, Maria Amico, Domenico Sprovieri, Francesca Leuridan, Hippolyte Bertrand, Yann Ramonet, Michel Pirrone, Nicola Dommergue, Aurelien Seven-year monitoring of mercury in wet precipitation and atmosphere at the Amsterdam Island GMOS station |
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Research Article |
description |
Mercury (Hg) fate and transport research requires more effort to obtain a deep knowledge of its biogeochemical cycle, particularly in the Southern Hemisphere and Tropics that are still missing of distributed monitoring sites. Continuous monitoring of atmospheric Hg concentrations and trend worldwide is relevant for the effectiveness evaluation of the Minamata Convention on Mercury (MCM) actions. In this context, Gaseous Elemental Mercury (GEM) and total mercury (THg) in precipitations were monitored from 2013 to 2019 at the Amsterdam Island Observatory (AMS - 37°48′S, 77°34′E) to provide insights into the Hg pathway in the remote southern Indian Ocean, also considering ancillary dataset of Rn-222, CO(2), CO, and CH(4). GEM average concentration was 1.06 ± 0.07 ng m(−3), with a slight increase during the austral winter due to both higher wind speed over the surface ocean and contributions from southern Africa. In wet depositions, THg average concentration was 2.39 ± 1.17 ng L(−1), whereas the annual flux averaged 2.04 ± 0.80 μg m(−2) year(−1). In general, both GEM and Volume-Weighted Mean Concentration (VWMC) of THg did not show an increasing/decreasing trend over the seven-year period, suggesting a substantial lack of evolution about emission of Hg reaching AMS. Air masses Cluster Analysis and Potential Source Contribution Function showed that oceanic evasion was the main Hg contributor at AMS, while further contributions were attributable to long-range transport events from southern Africa, particularly when the occurrence of El Niño increased the frequency of wildfires. |
format |
Text |
author |
Tassone, Antonella Magand, Olivier Naccarato, Attilio Martino, Maria Amico, Domenico Sprovieri, Francesca Leuridan, Hippolyte Bertrand, Yann Ramonet, Michel Pirrone, Nicola Dommergue, Aurelien |
author_facet |
Tassone, Antonella Magand, Olivier Naccarato, Attilio Martino, Maria Amico, Domenico Sprovieri, Francesca Leuridan, Hippolyte Bertrand, Yann Ramonet, Michel Pirrone, Nicola Dommergue, Aurelien |
author_sort |
Tassone, Antonella |
title |
Seven-year monitoring of mercury in wet precipitation and atmosphere at the Amsterdam Island GMOS station |
title_short |
Seven-year monitoring of mercury in wet precipitation and atmosphere at the Amsterdam Island GMOS station |
title_full |
Seven-year monitoring of mercury in wet precipitation and atmosphere at the Amsterdam Island GMOS station |
title_fullStr |
Seven-year monitoring of mercury in wet precipitation and atmosphere at the Amsterdam Island GMOS station |
title_full_unstemmed |
Seven-year monitoring of mercury in wet precipitation and atmosphere at the Amsterdam Island GMOS station |
title_sort |
seven-year monitoring of mercury in wet precipitation and atmosphere at the amsterdam island gmos station |
publisher |
Elsevier |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10068122/ http://www.ncbi.nlm.nih.gov/pubmed/37020937 https://doi.org/10.1016/j.heliyon.2023.e14608 |
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Austral Indian |
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Austral Indian |
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Amsterdam Island |
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Amsterdam Island |
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Heliyon |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10068122/ http://www.ncbi.nlm.nih.gov/pubmed/37020937 http://dx.doi.org/10.1016/j.heliyon.2023.e14608 |
op_rights |
©2023PublishedbyElsevierLtd. |
op_doi |
https://doi.org/10.1016/j.heliyon.2023.e14608 |
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e14608 |
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