Atmospheric mercury speciation dynamics at the high-altitude Pic du Midi Observatory, southern France
International audience Continuous measurements of atmospheric gaseous elemental mercury (GEM), particulate bound mercury (PBM) and gaseous oxidized mercury (GOM) at the high-altitude Pic du Midi Observatory (PDM Observatory, 2877 m a.s.l.) in southern France were made from November 2011 to November...
Published in: | Atmospheric Chemistry and Physics |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2016
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Online Access: | https://insu.hal.science/insu-03671665 https://insu.hal.science/insu-03671665/document https://insu.hal.science/insu-03671665/file/acp-16-5623-2016.pdf https://doi.org/10.5194/acp-16-5623-2016 |
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Open Polar |
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Université Toulouse III - Paul Sabatier: HAL-UPS |
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ftutoulouse3hal |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
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[SDU]Sciences of the Universe [physics] Fu, Xuewu Marusczak, Nicolas Heimbürger, Lars-Eric Sauvage, Bastien Gheusi, François Prestbo, Eric M. Sonke, Jeroen E. Atmospheric mercury speciation dynamics at the high-altitude Pic du Midi Observatory, southern France |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience Continuous measurements of atmospheric gaseous elemental mercury (GEM), particulate bound mercury (PBM) and gaseous oxidized mercury (GOM) at the high-altitude Pic du Midi Observatory (PDM Observatory, 2877 m a.s.l.) in southern France were made from November 2011 to November 2012. The mean GEM, PBM and GOM concentrations were 1.86 ng m -3 , 14 pg m -3 and 27 pg m -3 , respectively and we observed 44 high PBM (peak PBM values of 33-98 pg m -3 ) and 61 high GOM (peak GOM values of 91-295 pg m -3 ) events. The high PBM events occurred mainly in cold seasons (winter and spring) whereas high GOM events were mainly observed in the warm seasons (summer and autumn). In cold seasons the maximum air mass residence times (ARTs) associated with high PBM events were observed in the upper troposphere over North America. The ratios of high PBM ARTs to total ARTs over North America, Europe, the Arctic region and Atlantic Ocean were all elevated in the cold season compared to the warm season, indicating that the middle and upper free troposphere of the Northern Hemisphere may be more enriched in PBM in cold seasons. PBM concentrations and PBM / GOM ratios during the high PBM events were significantly anti-correlated with atmospheric aerosol concentrations, air temperature and solar radiation, suggesting in situ formation of PBM in the middle and upper troposphere. We identified two distinct types of high GOM events with the GOM concentrations positively and negatively correlated with atmospheric ozone concentrations, respectively. High GOM events positively correlated with ozone were mainly related to air masses from the upper troposphere over the Arctic region and middle troposphere over the temperate North Atlantic Ocean, whereas high GOM events anti-correlated with ozone were mainly related to air masses from the lower free troposphere over the subtropical North Atlantic Ocean. The ARTs analysis demonstrates that the lower and middle free troposphere over the North Atlantic Ocean was the largest ... |
author2 |
Géosciences Environnement Toulouse (GET) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Fu, Xuewu Marusczak, Nicolas Heimbürger, Lars-Eric Sauvage, Bastien Gheusi, François Prestbo, Eric M. Sonke, Jeroen E. |
author_facet |
Fu, Xuewu Marusczak, Nicolas Heimbürger, Lars-Eric Sauvage, Bastien Gheusi, François Prestbo, Eric M. Sonke, Jeroen E. |
author_sort |
Fu, Xuewu |
title |
Atmospheric mercury speciation dynamics at the high-altitude Pic du Midi Observatory, southern France |
title_short |
Atmospheric mercury speciation dynamics at the high-altitude Pic du Midi Observatory, southern France |
title_full |
Atmospheric mercury speciation dynamics at the high-altitude Pic du Midi Observatory, southern France |
title_fullStr |
Atmospheric mercury speciation dynamics at the high-altitude Pic du Midi Observatory, southern France |
title_full_unstemmed |
Atmospheric mercury speciation dynamics at the high-altitude Pic du Midi Observatory, southern France |
title_sort |
atmospheric mercury speciation dynamics at the high-altitude pic du midi observatory, southern france |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://insu.hal.science/insu-03671665 https://insu.hal.science/insu-03671665/document https://insu.hal.science/insu-03671665/file/acp-16-5623-2016.pdf https://doi.org/10.5194/acp-16-5623-2016 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://insu.hal.science/insu-03671665 Atmospheric Chemistry and Physics, 2016, 16, pp.5623-5639. ⟨10.5194/acp-16-5623-2016⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-16-5623-2016 insu-03671665 https://insu.hal.science/insu-03671665 https://insu.hal.science/insu-03671665/document https://insu.hal.science/insu-03671665/file/acp-16-5623-2016.pdf BIBCODE: 2016ACP.16.5623F doi:10.5194/acp-16-5623-2016 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/acp-16-5623-2016 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
16 |
container_issue |
9 |
container_start_page |
5623 |
op_container_end_page |
5639 |
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1810462403292299264 |
spelling |
ftutoulouse3hal:oai:HAL:insu-03671665v1 2024-09-15T18:22:32+00:00 Atmospheric mercury speciation dynamics at the high-altitude Pic du Midi Observatory, southern France Fu, Xuewu Marusczak, Nicolas Heimbürger, Lars-Eric Sauvage, Bastien Gheusi, François Prestbo, Eric M. Sonke, Jeroen E. Géosciences Environnement Toulouse (GET) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) 2016 https://insu.hal.science/insu-03671665 https://insu.hal.science/insu-03671665/document https://insu.hal.science/insu-03671665/file/acp-16-5623-2016.pdf https://doi.org/10.5194/acp-16-5623-2016 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-16-5623-2016 insu-03671665 https://insu.hal.science/insu-03671665 https://insu.hal.science/insu-03671665/document https://insu.hal.science/insu-03671665/file/acp-16-5623-2016.pdf BIBCODE: 2016ACP.16.5623F doi:10.5194/acp-16-5623-2016 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://insu.hal.science/insu-03671665 Atmospheric Chemistry and Physics, 2016, 16, pp.5623-5639. ⟨10.5194/acp-16-5623-2016⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2016 ftutoulouse3hal https://doi.org/10.5194/acp-16-5623-2016 2024-06-25T00:08:54Z International audience Continuous measurements of atmospheric gaseous elemental mercury (GEM), particulate bound mercury (PBM) and gaseous oxidized mercury (GOM) at the high-altitude Pic du Midi Observatory (PDM Observatory, 2877 m a.s.l.) in southern France were made from November 2011 to November 2012. The mean GEM, PBM and GOM concentrations were 1.86 ng m -3 , 14 pg m -3 and 27 pg m -3 , respectively and we observed 44 high PBM (peak PBM values of 33-98 pg m -3 ) and 61 high GOM (peak GOM values of 91-295 pg m -3 ) events. The high PBM events occurred mainly in cold seasons (winter and spring) whereas high GOM events were mainly observed in the warm seasons (summer and autumn). In cold seasons the maximum air mass residence times (ARTs) associated with high PBM events were observed in the upper troposphere over North America. The ratios of high PBM ARTs to total ARTs over North America, Europe, the Arctic region and Atlantic Ocean were all elevated in the cold season compared to the warm season, indicating that the middle and upper free troposphere of the Northern Hemisphere may be more enriched in PBM in cold seasons. PBM concentrations and PBM / GOM ratios during the high PBM events were significantly anti-correlated with atmospheric aerosol concentrations, air temperature and solar radiation, suggesting in situ formation of PBM in the middle and upper troposphere. We identified two distinct types of high GOM events with the GOM concentrations positively and negatively correlated with atmospheric ozone concentrations, respectively. High GOM events positively correlated with ozone were mainly related to air masses from the upper troposphere over the Arctic region and middle troposphere over the temperate North Atlantic Ocean, whereas high GOM events anti-correlated with ozone were mainly related to air masses from the lower free troposphere over the subtropical North Atlantic Ocean. The ARTs analysis demonstrates that the lower and middle free troposphere over the North Atlantic Ocean was the largest ... Article in Journal/Newspaper North Atlantic Université Toulouse III - Paul Sabatier: HAL-UPS Atmospheric Chemistry and Physics 16 9 5623 5639 |