Chemical Speciation of Antarctic Atmospheric Depositions
Featured Application The results of such studies will enable researchers to gain insight into the behavior of metals in wet depositions, which is fundamental knowledge to carry out atmospheric photochemistry studies and to model biogeochemical cycles of metal cations. Both inorganic and organic comp...
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Online Access: | https://hdl.handle.net/11566/309121 https://doi.org/10.3390/app12094438 |
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ftupmarcheiris:oai:iris.univpm.it:11566/309121 2024-04-14T08:02:53+00:00 Chemical Speciation of Antarctic Atmospheric Depositions Bertinetti, S Berto, S Malandrino, M Vione, D Abollino, O Conca, E Marafante, M Annibaldi, A Truzzi, C Illuminati, S Bertinetti, S Berto, S Malandrino, M Vione, D Abollino, O Conca, E Marafante, M Annibaldi, A Truzzi, C Illuminati, S 2022 STAMPA https://hdl.handle.net/11566/309121 https://doi.org/10.3390/app12094438 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000794621200001 volume:12 issue:9 firstpage:4438 journal:APPLIED SCIENCES https://hdl.handle.net/11566/309121 doi:10.3390/app12094438 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85129853627 Antarctica atmospheric deposition metal complexe metal speciation chemical modeling metal cations info:eu-repo/semantics/article 2022 ftupmarcheiris https://doi.org/10.3390/app12094438 2024-03-21T18:09:33Z Featured Application The results of such studies will enable researchers to gain insight into the behavior of metals in wet depositions, which is fundamental knowledge to carry out atmospheric photochemistry studies and to model biogeochemical cycles of metal cations. Both inorganic and organic complexation of metal cations in clouds or rainwater is essential to describe the global biogeochemical cycles of metals, because complexation can increase metal solubility and stabilize some of their oxidation states. Within a Project of the National Research Program in the Antarctica, atmospheric depositions were collected during the Antarctic summer 2017-2018 in eight sampling sites. The main ionic components occurring in water extracts of these atmospheric depositions were quantified, and a chemical model was applied, in order to identify the main species occurring in the samples. The speciation study showed that most cations were present as aquoions, except for Fe, which occurred predominantly in hydrolytic forms. The model allowed us to foresee the effect of an increase in the concentration levels of all the solution components, by simulating what could happen when the original particles act as cloud condensation nuclei. The role of inorganic anions as complexing agents becomes important when increasing total concentrations of all the solutes by a factor >100 compared to the water extracts, while the presence of organic acids acquires significance for samples having organic acid concentration higher than 10(-5) mol L-1. Moreover, it was possible to pinpoint the formation constants that mostly affect the chemical system, and to gain insight into the behavior of metals in wet depositions, which is fundamental knowledge in atmospheric photochemistry studies and in the modeling of the biogeochemical cycles of metal cations. Article in Journal/Newspaper Antarc* Antarctic Antarctica Università Politecnica delle Marche: IRIS Antarctic The Antarctic Applied Sciences 12 9 4438 |
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Open Polar |
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Università Politecnica delle Marche: IRIS |
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ftupmarcheiris |
language |
English |
topic |
Antarctica atmospheric deposition metal complexe metal speciation chemical modeling metal cations |
spellingShingle |
Antarctica atmospheric deposition metal complexe metal speciation chemical modeling metal cations Bertinetti, S Berto, S Malandrino, M Vione, D Abollino, O Conca, E Marafante, M Annibaldi, A Truzzi, C Illuminati, S Chemical Speciation of Antarctic Atmospheric Depositions |
topic_facet |
Antarctica atmospheric deposition metal complexe metal speciation chemical modeling metal cations |
description |
Featured Application The results of such studies will enable researchers to gain insight into the behavior of metals in wet depositions, which is fundamental knowledge to carry out atmospheric photochemistry studies and to model biogeochemical cycles of metal cations. Both inorganic and organic complexation of metal cations in clouds or rainwater is essential to describe the global biogeochemical cycles of metals, because complexation can increase metal solubility and stabilize some of their oxidation states. Within a Project of the National Research Program in the Antarctica, atmospheric depositions were collected during the Antarctic summer 2017-2018 in eight sampling sites. The main ionic components occurring in water extracts of these atmospheric depositions were quantified, and a chemical model was applied, in order to identify the main species occurring in the samples. The speciation study showed that most cations were present as aquoions, except for Fe, which occurred predominantly in hydrolytic forms. The model allowed us to foresee the effect of an increase in the concentration levels of all the solution components, by simulating what could happen when the original particles act as cloud condensation nuclei. The role of inorganic anions as complexing agents becomes important when increasing total concentrations of all the solutes by a factor >100 compared to the water extracts, while the presence of organic acids acquires significance for samples having organic acid concentration higher than 10(-5) mol L-1. Moreover, it was possible to pinpoint the formation constants that mostly affect the chemical system, and to gain insight into the behavior of metals in wet depositions, which is fundamental knowledge in atmospheric photochemistry studies and in the modeling of the biogeochemical cycles of metal cations. |
author2 |
Bertinetti, S Berto, S Malandrino, M Vione, D Abollino, O Conca, E Marafante, M Annibaldi, A Truzzi, C Illuminati, S |
format |
Article in Journal/Newspaper |
author |
Bertinetti, S Berto, S Malandrino, M Vione, D Abollino, O Conca, E Marafante, M Annibaldi, A Truzzi, C Illuminati, S |
author_facet |
Bertinetti, S Berto, S Malandrino, M Vione, D Abollino, O Conca, E Marafante, M Annibaldi, A Truzzi, C Illuminati, S |
author_sort |
Bertinetti, S |
title |
Chemical Speciation of Antarctic Atmospheric Depositions |
title_short |
Chemical Speciation of Antarctic Atmospheric Depositions |
title_full |
Chemical Speciation of Antarctic Atmospheric Depositions |
title_fullStr |
Chemical Speciation of Antarctic Atmospheric Depositions |
title_full_unstemmed |
Chemical Speciation of Antarctic Atmospheric Depositions |
title_sort |
chemical speciation of antarctic atmospheric depositions |
publishDate |
2022 |
url |
https://hdl.handle.net/11566/309121 https://doi.org/10.3390/app12094438 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000794621200001 volume:12 issue:9 firstpage:4438 journal:APPLIED SCIENCES https://hdl.handle.net/11566/309121 doi:10.3390/app12094438 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85129853627 |
op_doi |
https://doi.org/10.3390/app12094438 |
container_title |
Applied Sciences |
container_volume |
12 |
container_issue |
9 |
container_start_page |
4438 |
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1796318305114390528 |