2026-05-28T00:14:19Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/183662026-02-03T12:22:16Zcom_10630_2254col_10630_37959

00925njm 22002777a 4500 dc Gordo Puertas, Elisa author Íñiguez Moreno, Concepción author Cañete-Hidalgo, Sergio Andrés author Dueñas-Buey, Mª Concepción author Jiménez-Gámez, Carlos author López-Gordillo, Francisco Javier author Carmona-Fernández, Raquel author Santos, FJ author López-Gutiérrez, J.M. author García-Tenorio, Rafael author 2019-09-17 Levels of natural and anthropogenic radionuclides have been determined in six brown and red seaweed species from Arctic coasts (Kongsfjorden, Spitsbergen, Svalbard Islands) in order to characterize the radioactivity in this ecosystem. Samples were collected in September 2014, August 2017 and July 2019. Levels of 7Be, 40K, 208Tl, 210Pb, 226Ra and 228Ra were measured by high-resolution gamma spectrometry. While anthropogenic radionuclides (1 4 C and 1 2 9 I) were determined by low-energy accelerator mass spectrometry (LEAMS). The activities of 129I are two orders of magnitude higher than those found in algae collected on the Spanish Atlantic Coast and presents more variability than the 14C results, indicating their different affinity to this element depending on the species. Radionuclide tracers discharged from Sellafield and La Hague are transported into the Arctic Ocean where they circulate at different depth levels, marking water of Atlantic origin (Karcher et al., 2012). https://hdl.handle.net/10630/18366 Radiactividad - Aspectos ambientales - Ártico Ártico - Aspectos ambientales Algas marinas - Ártico Study of radiactivity on Arctic marine seaweed from Kongsfjorden (Svalbard).