The fate of mercury species in a sub-arctic snowpack during snowmelt
received 12 MArch 2003;revised 1 may 2003; accepted 15 May 2003 An extensive mercury study was conducted in April 2002 prior to and during the annual melting of a snowpack in a sub-arctic site along the Hudson Bay (Canada). Gas-phase measurements show that the snowmelt coincides with an elemental me...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , , , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2003
|
Subjects: | |
Online Access: | https://hal.science/hal-00000529 https://hal.science/hal-00000529/document https://hal.science/hal-00000529/file/2003gl017308.pdf |
id |
ftunivsavoie:oai:HAL:hal-00000529v1 |
---|---|
record_format |
openpolar |
spelling |
ftunivsavoie:oai:HAL:hal-00000529v1 2024-04-28T08:08:09+00:00 The fate of mercury species in a sub-arctic snowpack during snowmelt Dommergue, Aurélien Ferrari, Christophe, P. Gauchard, Pierre-Alexis Boutron, Claude, F. Poissant, Laurier Pilote, Martin Jitaru, Petru Adams, Freddy, C. Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Environment and Climate Change Canada (ECCC) Micro and Trace Analysis Center (Micro and Trace Analysis Center) University of Antwerp (UA)-Micro and Trace Analysis Center 2003 https://hal.science/hal-00000529 https://hal.science/hal-00000529/document https://hal.science/hal-00000529/file/2003gl017308.pdf en eng HAL CCSD American Geophysical Union hal-00000529 https://hal.science/hal-00000529 https://hal.science/hal-00000529/document https://hal.science/hal-00000529/file/2003gl017308.pdf info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00000529 Geophysical Research Letters, 2003, 30, pp.No12, 1621, doi:10.1029/2003GL017308 mercury snow snowmelt Canada contamination methylmercury gas exchange Geochemical cycle sources and sinks snow and ice trace elements [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry info:eu-repo/semantics/article Journal articles 2003 ftunivsavoie https://doi.org/10.1029/2003GL017308 2024-04-11T00:21:04Z received 12 MArch 2003;revised 1 may 2003; accepted 15 May 2003 An extensive mercury study was conducted in April 2002 prior to and during the annual melting of a snowpack in a sub-arctic site along the Hudson Bay (Canada). Gas-phase measurements show that the snowmelt coincides with an elemental mercury (Hg°) pulse in the snowpack air far above ambient levels. Additional measurements of inorganic mercury (Hg2+) and methylmercury (MeHg+) in snow pits, in surface snow and in a meltwater sample clearly reveal that most of Hg is removed from the snow during the first days of snowmelt. We estimate that gas-phase exchanges contribute poorly to remove Hg from the snowpack; consequently during a snowmelt day more than 90% of Hg present in the snow surface is likely released with the meltwater. In arctic areas, where Hg accumulates at an accelerated rate in the snow surfaces [Lu et al., 2001] during mercury depletion events (MDE), the discharge of this toxic and bio-accumulating pollutant in water systems could be a threat to ecosystems and local indigenous populations. Article in Journal/Newspaper Arctic Hudson Bay Université Savoie Mont Blanc: HAL Geophysical Research Letters 30 12 |
institution |
Open Polar |
collection |
Université Savoie Mont Blanc: HAL |
op_collection_id |
ftunivsavoie |
language |
English |
topic |
mercury snow snowmelt Canada contamination methylmercury gas exchange Geochemical cycle sources and sinks snow and ice trace elements [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry |
spellingShingle |
mercury snow snowmelt Canada contamination methylmercury gas exchange Geochemical cycle sources and sinks snow and ice trace elements [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry Dommergue, Aurélien Ferrari, Christophe, P. Gauchard, Pierre-Alexis Boutron, Claude, F. Poissant, Laurier Pilote, Martin Jitaru, Petru Adams, Freddy, C. The fate of mercury species in a sub-arctic snowpack during snowmelt |
topic_facet |
mercury snow snowmelt Canada contamination methylmercury gas exchange Geochemical cycle sources and sinks snow and ice trace elements [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry |
description |
received 12 MArch 2003;revised 1 may 2003; accepted 15 May 2003 An extensive mercury study was conducted in April 2002 prior to and during the annual melting of a snowpack in a sub-arctic site along the Hudson Bay (Canada). Gas-phase measurements show that the snowmelt coincides with an elemental mercury (Hg°) pulse in the snowpack air far above ambient levels. Additional measurements of inorganic mercury (Hg2+) and methylmercury (MeHg+) in snow pits, in surface snow and in a meltwater sample clearly reveal that most of Hg is removed from the snow during the first days of snowmelt. We estimate that gas-phase exchanges contribute poorly to remove Hg from the snowpack; consequently during a snowmelt day more than 90% of Hg present in the snow surface is likely released with the meltwater. In arctic areas, where Hg accumulates at an accelerated rate in the snow surfaces [Lu et al., 2001] during mercury depletion events (MDE), the discharge of this toxic and bio-accumulating pollutant in water systems could be a threat to ecosystems and local indigenous populations. |
author2 |
Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Environment and Climate Change Canada (ECCC) Micro and Trace Analysis Center (Micro and Trace Analysis Center) University of Antwerp (UA)-Micro and Trace Analysis Center |
format |
Article in Journal/Newspaper |
author |
Dommergue, Aurélien Ferrari, Christophe, P. Gauchard, Pierre-Alexis Boutron, Claude, F. Poissant, Laurier Pilote, Martin Jitaru, Petru Adams, Freddy, C. |
author_facet |
Dommergue, Aurélien Ferrari, Christophe, P. Gauchard, Pierre-Alexis Boutron, Claude, F. Poissant, Laurier Pilote, Martin Jitaru, Petru Adams, Freddy, C. |
author_sort |
Dommergue, Aurélien |
title |
The fate of mercury species in a sub-arctic snowpack during snowmelt |
title_short |
The fate of mercury species in a sub-arctic snowpack during snowmelt |
title_full |
The fate of mercury species in a sub-arctic snowpack during snowmelt |
title_fullStr |
The fate of mercury species in a sub-arctic snowpack during snowmelt |
title_full_unstemmed |
The fate of mercury species in a sub-arctic snowpack during snowmelt |
title_sort |
fate of mercury species in a sub-arctic snowpack during snowmelt |
publisher |
HAL CCSD |
publishDate |
2003 |
url |
https://hal.science/hal-00000529 https://hal.science/hal-00000529/document https://hal.science/hal-00000529/file/2003gl017308.pdf |
genre |
Arctic Hudson Bay |
genre_facet |
Arctic Hudson Bay |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00000529 Geophysical Research Letters, 2003, 30, pp.No12, 1621, doi:10.1029/2003GL017308 |
op_relation |
hal-00000529 https://hal.science/hal-00000529 https://hal.science/hal-00000529/document https://hal.science/hal-00000529/file/2003gl017308.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2003GL017308 |
container_title |
Geophysical Research Letters |
container_volume |
30 |
container_issue |
12 |
_version_ |
1797577060353310720 |