Alpha radiation from polymetallic nodules and potential health risks from deep-sea mining

Autor: Jessica B. Volz, Walter Geibert, Dennis Köhler, Michiel M. Rutgers van der Loeff, Sabine Kasten

Publikováno v: Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)

Abstract In search for critical elements, polymetallic nodules at the deep abyssal seafloor are targeted for mining operations. Nodules efficiently scavenge and retain several naturally occurring uranium-series radioisotopes, which predominantly emit

Externí odkaz: https://doaj.org/article/aa4933a3f7644c4b881bfa4619292867

Dissolved, Labile, and Total Particulate Trace Metal Dynamics on the Northeast Greenland Shelf

Autor: Xue‐Gang Chen, Stephan Krisch, Ali Al‐Hashem, Mark James Hopwood, Michiel M. Rutgers van der Loeff, Oliver Huhn, Pablo Lodeiro, Tim Steffens, Eric P. Achterberg

Publikováno v: Global Biogeochemical Cycles. 36

We present high-resolution profiles of dissolved, labile and total particulate trace metals (TMs) on the Northeast Greenland shelf from GEOTRACES cruise GN05 in August 2016. Combined with radium isotopes, stable oxygen isotopes, and noble gas measure

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::925714fc6156c87efb1b8221b7387994
https://doi.org/10.1029/2022gb007528

Decrease in 230Th in the Amundsen Basin since 2007: far-field effect of increased scavenging on the shelf?

Autor: Ole Valk, Walter Geibert, Robert Lawrence Edwards, Matthieu Roy-Barman, William M. Smethie, Núria Casacuberta, Michiel M Rutgers van der Loeff, S. Bradley Moran, Ronja Paffrath, Viena Puigcorbé, Yanbin Lu, K. H. Lepore, Sandra Gdaniec

Publikováno v: Ocean Science. 16:221-234

This study provides dissolved and particulate 230Th and 232Th results as well as particulate 234Th data collected during expeditions to the central Arctic Ocean (GEOTRACES, an international project to identify processes and quantify fluxes that contr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d6f6d345a467f598cd16331faec8d6b
https://doi.org/10.5194/os-16-221-2020

Seawater‐particle interactions of rare earth elements and neodymium isotopes in the deep central Arctic Ocean

Autor: Michiel M Rutgers van der Loeff, Ronja Paffrath, Ole Valk, Hélène Planquette, Sandra Gdaniec, Philipp Böning, Katharina Pahnke

Publikováno v: Journal Of Geophysical Research-oceans (2169-9275) (American Geophysical Union (AGU)), 2021-08, Vol. 126, N. 8, P. e2021JC017423 (21p.)
EPIC3Journal of Geophysical Research: Oceans, 126(8), ISSN: 2169-9275
Journal of Geophysical Research. Oceans
Journal of Geophysical Research. Oceans, Wiley-Blackwell, 2021, 126 (8), ⟨10.1029/2021jc017423⟩
Journal of Geophysical Research. Oceans, 2021, 126 (8), ⟨10.1029/2021jc017423⟩

In the central Arctic Ocean, dissolved rare earth element concentrations ([dREE]) and the neodymium (Nd) isotope compositions are constant throughout the deep water column (>1000 m water depth), indicating unique conditions among the ocean basins and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac68e05e406b93791e033f4ffc7021be
https://archimer.ifremer.fr/doc/00705/81716/

Distribution of 210Pb and 210Po in the Arctic water column during the 2007 sea-ice minimum: Particle export in the ice-covered basins

Autor: Viena Puigcorbé, Jordi Garcia-Orellana, Pere Masqué, P. Camara-Mor, Michiel M Rutgers van der Loeff, Montserrat Roca-Martí, Meri Korhonen, Benjamin Rabe, Jana Friedrich

Publikováno v: Deep Sea Research Part I: Oceanographic Research Papers. 142:94-106

210Pb and 210Po are naturally occurring radionuclides that are commonly used as a proxy for particle and carbon export. In this study, the distribution of the 210Po/210Pb pair was investigated in the water column of the Barents, Kara and Laptev Seas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::209fa0c54a2c72dc6361bb3496e45431
https://doi.org/10.1016/j.dsr.2018.09.011