Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 Technische Universität Braunschweig https://www.tu-braunschweig.de/ https://ror.org/010nsgg66 Biester Harald h.biester@tu-braunschweig.de Technische Universität Braunschweig https://www.tu-braunschweig.de/ https://ror.org/010nsgg66 2026 Dissolved total mercury and methylmercury concentrations in the Southern Ocean during the PS133/1 expedition (22 October – 9 November 2022) dataset https://doi.org/10.1594/PANGAEA.987320 2026-01-07T15:27:28 Water samples for total mercury (Hg) and methylmercury (MeHg) were collected in the Southern Ocean between 22 October and 9 November 2022 during the PS133/1 expedition, covering depths from 20 to 7000 m. Sampling was conducted using an ultraclean Titan rosette system (SBE-911Plus, Seabird) equipped with 24 × 12 L Ocean Test Equipment (OTE) bottles and a metal-free winch with a synthetic reinforced Vectran cable. After recovery, the clean CTD rosette was covered with clean plastic caps and transferred by trolley to an ISO Class 5 clean laboratory container. Each bottle was introduced through a clean airlock, rinsed externally with Milli-Q water from the container's integrated water treatment system, and subsampled following GEOTRACES ultraclean protocols. Samples for total Hg were collected unfiltered into pre-cleaned 60 mL glass vials to minimize contamination. Samples for MeHg were collected unfiltered into 250 mL HDPE Nalgene bottles and acidified to 0.4 % v/v with ultrapure trace-metal-grade HCl. Total Hg concentrations were determined using a custom single gold-trap purge and trap system following US EPA Method 1631. Dissolved MeHg concentrations were quantified by gas chromatography coupled to sector field inductively coupled plasma mass spectrometry (GC–SF–ICP–MS) with isotopic dilution calibration. Biester Harald Uwe 0000-0001-5987-3680 Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 Calean Adelina Sindlev Marco B marcos@biology.sdu.dk Pakhomov Evgeny A epakhomov@eoas.ubc.ca Lüskow Florian florian.luskow@geo.uu.se 0000-0002-2100-7012 Stimac Ingrid Ingrid.Stimac@awi.de 0000-0001-6053-2330 Trimborn Scarlett scarlett.trimborn@awi.de 0000-0003-1434-9927 Dufour Aurélie Torres-Rodriguez Natalia 0000-0002-4649-2413 Heimbürger-Boavida Lars-Eric 0000-0003-0632-5183 Wenzhöfer Frank frank.wenzhoefer@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/frank-wenzhoefer.html Glud Ronnie N rnglud@biology.sdu.dk 0000-0002-7069-893X 2026 Dissolved and Particulate Methylated Mercury in a Highly Productive Area of the Southern Ocean journal article Global Biogeochemical Cycles 40(1) https://doi.org/10.1029/2025GB008767 e2025GB008767 2002 Method 1631, Revision E: Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Absorption Fluorescence Spectrometry other U.S. Environmental Protection Agency, Office of Water 38 p. -40.00189 -24.94616000000002 -56.28945 -51.28811 -33.61289696428565 -52.9336833928572 2022-10-22T02:01:02 2022-11-09T19:36:26 20.0 7000.0 GEOTRACES Global marine biogeochemical cycles of trace elements and their isotopes https://www.geotraces.org/ Danish National Research Foundation DG http://dg.dk/en/ https://doi.org/10.13039/501100001732 DNRF145 Danish Center for Hadal Research, HADAL German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 528941462 Controls of Primary Production on Southern Ocean Mercury Cycling (COPPSOM) https://gepris.dfg.de/gepris/projekt/528941462 German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 GPF 20-1_053 Island Impact: Understanding the Regional Impact of South Georgia on Southern ACC Biogeochemistry and Ecosystem Function German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 GPF 20-2_024 South Polar Carbon: Benthic Carbon Mineralization and Preservation in Southern Ocean Bathyal, Abyssal and Hadal Sediments PS133/1_6-3 -52.33047 -24.99119 -4325.9 2022-10-22T02:01:02 -52.330362 -24.995204 -4325.9 2022-10-22T02:50:18 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette, trace metal clean CTD-TM CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT discrete water samplers http://vocab.nerc.ac.uk/collection/L05/current/30/ https://registry.o2a-data.de/items/7911 Deployment depth: 1000 m PS133/1_9-6 -51.28811 -40.00189 -3784.9 2022-11-02T20:37:44 -51.288853 -40.000586 -3781.2 2022-11-02T22:20:45 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette, trace metal clean CTD-TM CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT discrete water samplers http://vocab.nerc.ac.uk/collection/L05/current/30/ https://registry.o2a-data.de/items/7911 Deployment depth: 3726 m PS133/1_10-5 -51.63598 -39.24428 -3720.1 2022-11-04T05:01:45 -51.635704 -39.244545 -3719.6 2022-11-04T05:32:45 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette, trace metal clean CTD-TM CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT discrete water samplers http://vocab.nerc.ac.uk/collection/L05/current/30/ https://registry.o2a-data.de/items/7911 Deployment depth: 300 m PS133/1_13-1 -52.21394 -38.36809 -3521.5 2022-11-04T17:18:45 -52.215432 -38.36515 -3517.3 2022-11-04T18:24:06 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette, trace metal clean CTD-TM CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT discrete water samplers http://vocab.nerc.ac.uk/collection/L05/current/30/ https://registry.o2a-data.de/items/7911 Deployment depth: 1000 m PS133/1_14-12 -54.19511 -35.90754 -243.7 2022-11-05T23:11:36 -54.194171 -35.910249 -246.6 2022-11-05T23:47:50 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette, trace metal clean CTD-TM CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT discrete water samplers http://vocab.nerc.ac.uk/collection/L05/current/30/ https://registry.o2a-data.de/items/7911 Deployment depth: 227 m PS133/1_17-7 -56.28945 -24.94616 -7300.9 2022-11-09T19:36:26 -56.329122 -24.923839 -7307.4 2022-11-09T22:29:21 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette, trace metal clean CTD-TM CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT discrete water samplers http://vocab.nerc.ac.uk/collection/L05/current/30/ https://registry.o2a-data.de/items/7911 Deployment depth: 7000 m 100 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Event label Event Tippenhauer Sandra sandra.tippenhauer@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/sandra-tippenhauer.html 0000-0003-3405-6275 Event DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Tippenhauer Sandra sandra.tippenhauer@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/sandra-tippenhauer.html 0000-0003-3405-6275 Date/Time LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Tippenhauer Sandra sandra.tippenhauer@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/sandra-tippenhauer.html 0000-0003-3405-6275 Latitude LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Tippenhauer Sandra sandra.tippenhauer@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/sandra-tippenhauer.html 0000-0003-3405-6275 Longitude DEPTH, water Depth water m depth http://purl.obolibrary.org/obo/PATO_0001595 water http://purl.obolibrary.org/obo/CHEBI_15377 Length L http://dbpedia.org/resource/Length Trimborn Scarlett scarlett.trimborn@awi.de 0000-0003-1434-9927 Depth water [m] Mercury Hg pmol/l mercury Molar Concentration Cold vapor atomic fluorescence spectrometer (CV-AFS), Brooks Rand Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 total, unfiltered Hg [pmol/l] Methylmercury MeHg pmol/l https://en.wikipedia.org/wiki/Methylmercury Molar Concentration Sector field inductively coupled plasma mass spectrometer (SF-ICP-MS), Thermo Fisher Scientific, Element XR Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 total (monomethylmercury + dimethylmercury), unfiltered MeHg [pmol/l] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable in-situ pumps Mercury Methylmercury particle South Sandwich Islands author10758 author112470 author113373 author113374 author113375 author113376 author20257 author25451 author26865 author29244 author34470 author52245 author53657 author88997 award1575 award4456 award4457 award4458 basis1 campaign3373336 campaign48086 curlevel30 event3035732 event3035769 event3035792 event3035801 event3035813 event3035834 funder20472 funder21052 geocode1599 geocode1600 geocode1601 geocode1619 geocode8128 inst14194 journal6175 license21 method11984 method18400 method18401 param123568 param4606 pi113373 pi29244 pi47812 project4115 ref136309 ref136311 term1073131 term2299371 term2299462 term2606205 term26982 term30188 term43863 term43975 term44030 term47310 term51324 term51582 term67626 term68531 term69468 term71415