PANGAEA_987320 Dissolved total mercury and methylmercury concentrations in the Southern Ocean during the PS133/1 expedition (22 October – 9 November 2022) Pérez-Rodríguez, Marta; Biester, Harald Dissolved total mercury and methylmercury concentrations in the Southern Ocean during the PS133/1 expedition (22 October – 9 November 2022) 2026-01-07 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.987320 Investigator Sandra Tippenhauer sandra.tippenhauer@awi.de Investigator Scarlett Trimborn scarlett.trimborn@awi.de Investigator Marta Pérez-Rodríguez m.perez-rodriguez@tu-braunschweig.de Earth Science Event label DATE/TIME LATITUDE LONGITUDE DEPTH, water Mercury Methylmercury geoscientificInformation CTD/Rosette, trace metal clean in-situ pumps Mercury Methylmercury particle PS133/1 PS133/1_10-5 PS133/1_13-1 PS133/1_14-12 PS133/1_17-7 PS133/1_6-3 PS133/1_9-6 South Sandwich Islands Cold vapor atomic fluorescence spectrometer (CV-AFS), Brooks Rand Sector field inductively coupled plasma mass spectrometer (SF-ICP-MS), Thermo Fisher Scientific, Element XR Polarstern 2022-10-22 2022-11-09 Complete -56.28945 -51.28811 -40.00189 -24.94616000000002 20.0 m (DEPTH, water) 7000.0 m (DEPTH, water) GEOTRACES Global marine biogeochemical cycles of trace elements and their isotopes unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 100 data points text/tab-separated-values Biester, Harald Uwe; Pérez-Rodríguez, Marta; Calean, Adelina; Sindlev, Marco B; Pakhomov, Evgeny A; Lüskow, Florian; Stimac, Ingrid; Trimborn, Scarlett; Dufour, Aurélie; Torres-Rodriguez, Natalia; Heimbürger-Boavida, Lars-Eric; Wenzhöfer, Frank; Glud, Ronnie N (2026): Dissolved and Particulate Methylated Mercury in a Highly Productive Area of the Southern Ocean. Global Biogeochemical Cycles, 40(1), e2025GB008767, https://doi.org/10.1029/2025GB008767 Method 1631, Revision E: Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Absorption Fluorescence Spectrometry (2002). U.S. Environmental Protection Agency, Office of Water, 38 p.

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. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.987320"!

http://en.wikipedia.org/wiki/ISO_6709 LATITUDE http://en.wikipedia.org/wiki/ISO_6709 LONGITUDE http://en.wikipedia.org/wiki/ISO_8601 DATE/TIME https://doi.org/10.1029/2025GB008767 Dissolved and Particulate Methylated Mercury in a Highly Productive Area of the Southern Ocean https://doi.org/10.17815/jlsrf-3-163 Polarstern https://en.wikipedia.org/wiki/Methylmercury Methylmercury https://www.awi.de/en/about-us/organisation/staff/single-view/sandra-tippenhauer.html https://www.geotraces.org/ GEOTRACES DIF 9.4 2026-01-07 2026-04-29