Pérez-Rodríguez, Marta; Biester, Harald; Wenzhöfer, Frank; Glud, Ronnie N (2026): Total mercury, monomethylmercury, and total carbon in sediments from the Southern Ocean and South Sandwich Trench during the PS133/1 expedition (3 – 9 November 2022) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.987321
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Published: 2026 (exact date unknown) • DOI registered: 2026-01-07
Abstract:
Sediment cores for total mercury (Hg), monomethylmercury (MMHg), and total carbon (TC) were collected in the Southern Ocean and the South Sandwich Trench between 3 and 9 November 2022 during the PS133/1 expedition. Sampling depths ranged from approximately 3700 to 8000 m, using a multicorer (MUC) system. Total Hg concentrations were determined by thermal decomposition, amalgamation, and atomic absorption spectrophotometry (TDA–AAS) using a DMA-80 Direct Mercury Analyzer (Milestone). Monomethylmercury (MMHg) was analyzed by gas chromatography–cold vapor atomic fluorescence spectrometry (GC–CVAFS) following ethylation with sodium tetraethylborate on a KOH-digested aliquot, using a Brooks Rand manual system. Total carbon (TC) was measured using an elemental analyzer Euro EA 3000 (HEKAtech GmbH).
Keyword(s):
Supplement to:
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
Funding:
Danish National Research Foundation (DG), grant/award no. DNRF145: Danish Center for Hadal Research, HADAL
German Research Foundation (DFG), grant/award no. 528941462: Controls of Primary Production on Southern Ocean Mercury Cycling (COPPSOM)
German Research Foundation (DFG), grant/award no. GPF 20-1_053: Island Impact: Understanding the Regional Impact of South Georgia on Southern ACC Biogeochemistry and Ecosystem Function
German Research Foundation (DFG), grant/award no. GPF 20-2_024: South Polar Carbon: Benthic Carbon Mineralization and Preservation in Southern Ocean Bathyal, Abyssal and Hadal Sediments
Coverage:
Median Latitude: -54.721963 * Median Longitude: -28.905175 * South-bound Latitude: -56.240560 * West-bound Longitude: -39.925330 * North-bound Latitude: -51.301160 * East-bound Longitude: -24.839050
Date/Time Start: 2022-11-03T17:46:18 * Date/Time End: 2022-11-09T04:52:09
Minimum Elevation: -8066.4 m * Maximum Elevation: -3777.1 m
Event(s):
PS133/1_9-22 * Latitude Start: -51.301160 * Longitude Start: -39.925330 * Latitude End: -51.300988 * Longitude End: -39.923815 * Date/Time Start: 2022-11-03T17:46:18 * Date/Time End: 2022-11-03T19:14:25 * Elevation Start: -3794.8 m * Elevation End: -3777.1 m * O2A Registry URI: https://registry.o2a-data.de/items/3232 * Campaign: PS133/1 (Island Impact) * Basis: Polarstern * Method/Device: MultiCorer (MUC) * Comment: Deployment depth: 3792 m
PS133/1_15-5 * Latitude Start: -55.229890 * Longitude Start: -26.184810 * Latitude End: -55.230534 * Longitude End: -26.182643 * Date/Time Start: 2022-11-07T21:22:55 * Date/Time End: 2022-11-08T00:35:01 * Elevation Start: -8066.4 m * Elevation End: -7800.8 m * O2A Registry URI: https://registry.o2a-data.de/items/3232 * Campaign: PS133/1 (Island Impact) * Basis: Polarstern * Method/Device: MultiCorer (MUC) * Comment: Deployment depth: 8236 m
PS133/1_16-1 * Latitude Start: -55.800840 * Longitude Start: -24.839050 * Latitude End: -55.799206 * Longitude End: -24.838825 * Date/Time Start: 2022-11-08T10:15:09 * Date/Time End: 2022-11-08T12:25:56 * Elevation Start: -5002.1 m * Elevation End: -4043.2 m * O2A Registry URI: https://registry.o2a-data.de/items/3232 * Campaign: PS133/1 (Island Impact) * Basis: Polarstern * Method/Device: MultiCorer (MUC) * Comment: Deployment depth: 5823 m
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Pérez-Rodríguez, Marta | |||
| 2 | DATE/TIME | Date/Time | Pérez-Rodríguez, Marta | Geocode | ||
| 3 | LATITUDE | Latitude | Pérez-Rodríguez, Marta | Geocode | ||
| 4 | LONGITUDE | Longitude | Pérez-Rodríguez, Marta | Geocode | ||
| 5 | ELEVATION | Elevation | m a.s.l. | Pérez-Rodríguez, Marta | Geocode | |
| 6 | DEPTH, sediment/rock | Depth sed | m | Pérez-Rodríguez, Marta | Geocode | |
| 7 | Depth, top/min | Depth top | m | Pérez-Rodríguez, Marta | ||
| 8 | Depth, bottom/max | Depth bot | m | Pérez-Rodríguez, Marta | ||
| 9 | Mercury | Hg | µg/kg | Pérez-Rodríguez, Marta | Thermal decomposition amalgamation - atomic absorption spectrometer (TDA AAS), Milestone, DMA-80 | total |
| 10 | Monomethylmercury | MMHg | µg/kg | Pérez-Rodríguez, Marta | Gas chromatograph - cold vapor atomic fluorescence spectrometery (GC-CVAFS), Brooks Rand, Methylmercury Manual System | |
| 11 | Carbon, total | TC | % | Pérez-Rodríguez, Marta | Elemental analyser (EA), HEKAtech, Euro EA 3000 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
339 data points