Observations of the chemistry and concentrations of reactive Hg at locations with different ambient air chemistry
The Hg research community needs methods to more accurately measure atmospheric Hg concentrations and chemistry. The Reactive Mercury Active System (RMAS) uses cation exchange, nylon, and PTFE membranes to determine reactive mercury (RM), gaseous oxidized mercury, and particulate-bound mercury (PBM)...
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ftarchimer:oai:archimer.ifremer.fr:96096 2023-12-24T10:08:03+01:00 Observations of the chemistry and concentrations of reactive Hg at locations with different ambient air chemistry Gustin, Mae Sexauer Dunham-cheatham, Sarrah M. Allen, Natalie Choma, Nicole Johnson, William Lopez, Sam Russell, Armistead Mei, Eric Magand, Olivier Dommergue, Aurélien Elgiar, Tyler 2023-12 application/pdf https://archimer.ifremer.fr/doc/00849/96096/104434.pdf https://doi.org/10.1016/j.scitotenv.2023.166184 https://archimer.ifremer.fr/doc/00849/96096/ eng eng Elsevier BV info:eu-repo/grantAgreement/EC/H2020/689443/EU//ERA-PLANET https://archimer.ifremer.fr/doc/00849/96096/104434.pdf doi:10.1016/j.scitotenv.2023.166184 https://archimer.ifremer.fr/doc/00849/96096/ info:eu-repo/semantics/openAccess restricted use Science Of The Total Environment (0048-9697) (Elsevier BV), 2023-12 , Vol. 904 , P. 166184 (13p.) Gaseous oxidized mercury GEOS-Chem HYSPLIT Mercury Particulate-bound mercury text Article info:eu-repo/semantics/article 2023 ftarchimer https://doi.org/10.1016/j.scitotenv.2023.166184 2023-11-28T23:51:15Z The Hg research community needs methods to more accurately measure atmospheric Hg concentrations and chemistry. The Reactive Mercury Active System (RMAS) uses cation exchange, nylon, and PTFE membranes to determine reactive mercury (RM), gaseous oxidized mercury, and particulate-bound mercury (PBM) concentrations and chemistry, respectively. New data for Atlanta, Georgia (NRGT) demonstrated that particulate-bound Hg was dominant and the chemistry was primarily N and S HgII compounds. At Great Salt Lake, Utah (GSL), RM was predominately PBM, with NS > organics > halogen > O HgII compounds. At Guadalupe Mountains National Park, Texas (GUMO), halogenated compound concentrations were lowest when air interacting with the site was primarily derived from the Midwest, and highest when the air was sourced from Mexico. At Amsterdam Island, Southern Indian Ocean, compounds were primarily halogenated with some N, S, and organic HgII compounds potentially associated with biological activity. The GEOS-Chem model was applied to see if it predicted measurements at five field sites. Model values were higher than observations at GSL, slightly lower at NRGT, and observations were an order of magnitude higher than modeled values for GUMO and Reno, Nevada. In general, data collected from 13 locations indicated that N, S, and organic RM compounds were associated with city and forest locations, halogenated compounds were sourced from the marine boundary layer, and O compounds were associated with long-range transport. Data being developed currently, and in the past, suggest there are multiple forms of RM that modelers must consider, and PBM is an important component of RM. Article in Journal/Newspaper Amsterdam Island Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Indian Science of The Total Environment 904 166184 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Gaseous oxidized mercury GEOS-Chem HYSPLIT Mercury Particulate-bound mercury |
spellingShingle |
Gaseous oxidized mercury GEOS-Chem HYSPLIT Mercury Particulate-bound mercury Gustin, Mae Sexauer Dunham-cheatham, Sarrah M. Allen, Natalie Choma, Nicole Johnson, William Lopez, Sam Russell, Armistead Mei, Eric Magand, Olivier Dommergue, Aurélien Elgiar, Tyler Observations of the chemistry and concentrations of reactive Hg at locations with different ambient air chemistry |
topic_facet |
Gaseous oxidized mercury GEOS-Chem HYSPLIT Mercury Particulate-bound mercury |
description |
The Hg research community needs methods to more accurately measure atmospheric Hg concentrations and chemistry. The Reactive Mercury Active System (RMAS) uses cation exchange, nylon, and PTFE membranes to determine reactive mercury (RM), gaseous oxidized mercury, and particulate-bound mercury (PBM) concentrations and chemistry, respectively. New data for Atlanta, Georgia (NRGT) demonstrated that particulate-bound Hg was dominant and the chemistry was primarily N and S HgII compounds. At Great Salt Lake, Utah (GSL), RM was predominately PBM, with NS > organics > halogen > O HgII compounds. At Guadalupe Mountains National Park, Texas (GUMO), halogenated compound concentrations were lowest when air interacting with the site was primarily derived from the Midwest, and highest when the air was sourced from Mexico. At Amsterdam Island, Southern Indian Ocean, compounds were primarily halogenated with some N, S, and organic HgII compounds potentially associated with biological activity. The GEOS-Chem model was applied to see if it predicted measurements at five field sites. Model values were higher than observations at GSL, slightly lower at NRGT, and observations were an order of magnitude higher than modeled values for GUMO and Reno, Nevada. In general, data collected from 13 locations indicated that N, S, and organic RM compounds were associated with city and forest locations, halogenated compounds were sourced from the marine boundary layer, and O compounds were associated with long-range transport. Data being developed currently, and in the past, suggest there are multiple forms of RM that modelers must consider, and PBM is an important component of RM. |
format |
Article in Journal/Newspaper |
author |
Gustin, Mae Sexauer Dunham-cheatham, Sarrah M. Allen, Natalie Choma, Nicole Johnson, William Lopez, Sam Russell, Armistead Mei, Eric Magand, Olivier Dommergue, Aurélien Elgiar, Tyler |
author_facet |
Gustin, Mae Sexauer Dunham-cheatham, Sarrah M. Allen, Natalie Choma, Nicole Johnson, William Lopez, Sam Russell, Armistead Mei, Eric Magand, Olivier Dommergue, Aurélien Elgiar, Tyler |
author_sort |
Gustin, Mae Sexauer |
title |
Observations of the chemistry and concentrations of reactive Hg at locations with different ambient air chemistry |
title_short |
Observations of the chemistry and concentrations of reactive Hg at locations with different ambient air chemistry |
title_full |
Observations of the chemistry and concentrations of reactive Hg at locations with different ambient air chemistry |
title_fullStr |
Observations of the chemistry and concentrations of reactive Hg at locations with different ambient air chemistry |
title_full_unstemmed |
Observations of the chemistry and concentrations of reactive Hg at locations with different ambient air chemistry |
title_sort |
observations of the chemistry and concentrations of reactive hg at locations with different ambient air chemistry |
publisher |
Elsevier BV |
publishDate |
2023 |
url |
https://archimer.ifremer.fr/doc/00849/96096/104434.pdf https://doi.org/10.1016/j.scitotenv.2023.166184 https://archimer.ifremer.fr/doc/00849/96096/ |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Amsterdam Island |
genre_facet |
Amsterdam Island |
op_source |
Science Of The Total Environment (0048-9697) (Elsevier BV), 2023-12 , Vol. 904 , P. 166184 (13p.) |
op_relation |
info:eu-repo/grantAgreement/EC/H2020/689443/EU//ERA-PLANET https://archimer.ifremer.fr/doc/00849/96096/104434.pdf doi:10.1016/j.scitotenv.2023.166184 https://archimer.ifremer.fr/doc/00849/96096/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/j.scitotenv.2023.166184 |
container_title |
Science of The Total Environment |
container_volume |
904 |
container_start_page |
166184 |
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1786172777320939520 |