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

Scientific Reports, 2023
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 alpha ...
Jessica B. Volz, Walter Geibert, Dennis Köhler, Michiel M. Rutgers van der Loeff, Sabine Kasten   +4 more
doaj   +2 more sources

Polymetallic nodules are essential for food-web integrity of a prospective deep-seabed mining area in Pacific abyssal plains [PDF]

Scientific Reports, 2021
Polymetallic nodule fields provide hard substrate for sessile organisms on the abyssal seafloor between 3000 and 6000 m water depth. Deep-seabed mining targets these mineral-rich nodules and will likely modify the consumer-resource (trophic) and ...
Tanja Stratmann, Karline Soetaert, Daniel Kersken, Dick van Oevelen   +3 more
doaj   +2 more sources

Simulation Experiment of Environmental Impact of Deep-Sea Mining: Response of Phytoplankton Community to Polymetallic Nodules and Sediment Enrichment in Surface Water [PDF]

Toxics, 2022
In this paper, simulation experiments were conducted to study the response of phytoplankton biomass and community composition to the influence of polymetallic nodules and sediment at four stations in the western Pacific in 2021.
Rimei Ou, Lei Cai, Jinli Qiu, Hao Huang, Danyun Ou, Weiwen Li, Fanyu Lin, Xuebao He, Lei Wang, Risheng Wu   +9 more
doaj   +2 more sources

Biological responses to disturbance from simulated deep-sea polymetallic nodule mining. [PDF]

PLoS ONE, 2017
Commercial-scale mining for polymetallic nodules could have a major impact on the deep-sea environment, but the effects of these mining activities on deep-sea ecosystems are very poorly known. The first commercial test mining for polymetallic nodules was
Daniel O B Jones, Stefanie Kaiser, Andrew K Sweetman, Craig R Smith, Lenaick Menot, Annemiek Vink, Dwight Trueblood, Jens Greinert, David S M Billett, Pedro Martinez Arbizu, Teresa Radziejewska, Ravail Singh, Baban Ingole, Tanja Stratmann, Erik Simon-Lledó, Jennifer M Durden, Malcolm R Clark   +16 more
doaj   +9 more sources

Image segmentation and coverage estimation of deep-sea polymetallic nodules based on lightweight deep learning model [PDF]

Scientific Reports
Deep-sea polymetallic nodules, abundant in critical metal elements, are a vital strategic mineral resource. Accordingly, the prompt, accurate, and high-speed acquisition of parameters and distribution data for these nodules is crucial for the effective ...
Yue Hao, Shijuan Yan, Gang Yang, Yiping Luo, Dalong Liu, Chunhua Han, Xiangwen Ren, Dewen Du   +7 more
doaj   +2 more sources

Estimations of effective doses received from naturally occurring radioactivity in polymetallic nodules from the deep sea [PDF]

Scientific Reports
The strategic importance of metals found in deep-sea polymetallic nodules has spurred a surge in interest for their exploitation. However, nodules are known to incorporate radionuclides during their growth, so that any industrial processing would involve
Thomas Lüttke, Christian Kunze, Klaus Flesch, Jörg Dilling, Jens Fohlmeister, Holger Hummrich, Robert Arndt, Annegret Krzikalla, Christian Lucks, Thomas Kuhn, Annemiek Vink, Carsten Rühlemann   +11 more
doaj   +2 more sources

Limited Spatial and Temporal Variability in Meiofauna and Nematode Communities at Distant but Environmentally Similar Sites in an Area of Interest for Deep-Sea Mining [PDF]

Frontiers in Marine Science, 2017
To be able to adequately assess potential environmental impacts of deep-sea polymetallic nodule mining, the establishment of a proper environmental baseline, incorporating both spatial and temporal variability, is essential.
Ellen Pape, Tania N. Bezerra, Freija Hauquier, Ann Vanreusel   +3 more
doaj   +4 more sources

Complete mitochondrial genome of the abyssal coral Abyssoprimnoa gemina Cairns, 2015 (Octocorallia, Primnoidae) from the Clarion-Clipperton Zone, Pacific Ocean [PDF]

ZooKeys, 2023
The Clarion-Clipperton Zone (CCZ) in the tropical East Pacific is a region of interest for deep-sea mining due to its underwater deposits of polymetallic nodules containing economically important metals such as nickel, copper, and cobalt.
Romain Gastineau, Przemysław Dąbek, Kamila Mianowicz, Valcana Stoyanova, Artur Krawcewicz, Tomasz Abramowski   +5 more
doaj   +4 more sources

Genomic investigation of benthic invertebrates from the Clarion-Clipperton fields of polymetallic nodules [PDF]

ZooKeys
The abyssal plains of the Clarion-Clipperton Zone (CCZ) are famous for their fields of polymetallic nodules, which are inhabited by benthic invertebrates.
Romain Gastineau, Kamila Mianowicz, Przemysław Dąbek, Christian Otis, Valcana Stoyanova, Artur Krawcewicz, Tomasz Abramowski   +6 more
doaj   +4 more sources

Thorium-234 as a tracer for deep-sea mining sediment plume deposition [PDF]

Nature Communications
Deep-sea mining for polymetallic nodules is currently exploratory, but commercial-scale operations require indicators of environmental change to support regulatory thresholds and inform adaptive management.
Bryan J. O’Malley, Patrick T. Schwing, Sophia K. Chernoch, Rebekka A. Larson, Michael Clarke, Leigh M. Marsh, Alastair J. M. Lough, Gregg R. Brooks   +7 more
doaj   +2 more sources