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...
Published in: | Heliyon |
---|---|
Main Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2023
|
Subjects: | |
Online Access: | https://doi.org/10.1016/j.heliyon.2023.e14608 https://doaj.org/article/4691c9c353204188bdc7c648f5be294d |
id |
ftdoajarticles:oai:doaj.org/article:4691c9c353204188bdc7c648f5be294d |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:4691c9c353204188bdc7c648f5be294d 2023-05-15T13:22:27+02:00 Seven-year monitoring of mercury in wet precipitation and atmosphere at the Amsterdam Island GMOS station Antonella Tassone Olivier Magand Attilio Naccarato Maria Martino Domenico Amico Francesca Sprovieri Hippolyte Leuridan Yann Bertrand Michel Ramonet Nicola Pirrone Aurelien Dommergue 2023-03-01T00:00:00Z https://doi.org/10.1016/j.heliyon.2023.e14608 https://doaj.org/article/4691c9c353204188bdc7c648f5be294d EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S2405844023018157 https://doaj.org/toc/2405-8440 2405-8440 doi:10.1016/j.heliyon.2023.e14608 https://doaj.org/article/4691c9c353204188bdc7c648f5be294d Heliyon, Vol 9, Iss 3, Pp e14608- (2023) Wet deposition flux Southern Hemisphere Atmospheric pollution Source identification Atmospheric transport Mercury measurements Science (General) Q1-390 Social sciences (General) H1-99 article 2023 ftdoajarticles https://doi.org/10.1016/j.heliyon.2023.e14608 2023-04-09T00:33:06Z 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, CO2, CO, and CH4. 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. Article in Journal/Newspaper Amsterdam Island Directory of Open Access Journals: DOAJ Articles Austral Indian Heliyon 9 3 e14608 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Wet deposition flux Southern Hemisphere Atmospheric pollution Source identification Atmospheric transport Mercury measurements Science (General) Q1-390 Social sciences (General) H1-99 |
spellingShingle |
Wet deposition flux Southern Hemisphere Atmospheric pollution Source identification Atmospheric transport Mercury measurements Science (General) Q1-390 Social sciences (General) H1-99 Antonella Tassone Olivier Magand Attilio Naccarato Maria Martino Domenico Amico Francesca Sprovieri Hippolyte Leuridan Yann Bertrand Michel Ramonet Nicola Pirrone Aurelien Dommergue Seven-year monitoring of mercury in wet precipitation and atmosphere at the Amsterdam Island GMOS station |
topic_facet |
Wet deposition flux Southern Hemisphere Atmospheric pollution Source identification Atmospheric transport Mercury measurements Science (General) Q1-390 Social sciences (General) H1-99 |
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, CO2, CO, and CH4. 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 |
Article in Journal/Newspaper |
author |
Antonella Tassone Olivier Magand Attilio Naccarato Maria Martino Domenico Amico Francesca Sprovieri Hippolyte Leuridan Yann Bertrand Michel Ramonet Nicola Pirrone Aurelien Dommergue |
author_facet |
Antonella Tassone Olivier Magand Attilio Naccarato Maria Martino Domenico Amico Francesca Sprovieri Hippolyte Leuridan Yann Bertrand Michel Ramonet Nicola Pirrone Aurelien Dommergue |
author_sort |
Antonella Tassone |
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 |
https://doi.org/10.1016/j.heliyon.2023.e14608 https://doaj.org/article/4691c9c353204188bdc7c648f5be294d |
geographic |
Austral Indian |
geographic_facet |
Austral Indian |
genre |
Amsterdam Island |
genre_facet |
Amsterdam Island |
op_source |
Heliyon, Vol 9, Iss 3, Pp e14608- (2023) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2405844023018157 https://doaj.org/toc/2405-8440 2405-8440 doi:10.1016/j.heliyon.2023.e14608 https://doaj.org/article/4691c9c353204188bdc7c648f5be294d |
op_doi |
https://doi.org/10.1016/j.heliyon.2023.e14608 |
container_title |
Heliyon |
container_volume |
9 |
container_issue |
3 |
container_start_page |
e14608 |
_version_ |
1766365024835600384 |