Distribución espacial de radionucleídos en sedimentos marinos de Bahía Culebra y el Golfo de Nicoya, Pacífico, Costa Rica

 

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Detalles Bibliográficos
Autores: Lizano, Omar G., Loría, Luis Guillermo, Alfaro, Eric, Badilla, Mauricio
Formato: artículo original
Estado:Versión publicada
Fecha de Publicación:2008
Descripción:Spatial distribution of radionuclides in marine sediments from Culebra Bay and the Gulf of Nicoya, Pacific coast, Costa Rica. Ten natural and artificial radionuclides (K40, Cs137, Bi212, Pb212, Bi214, Pb214, Ra226, Ac228, Pa234, U235) in marine sediments were studied in Culebra Bay and the Gulf of Nicoya, both on the Pacific coast of Costa Rica. A freshwater marsh and an offshore island (Coco Island) were used as reference sites. The concentration of radioactive elements from the time of Earth’s formation diminishes in older continental blocks. Higher concentrations are expected in the offshore island, as found in this study. The range of values of these elements are considered normal according to global reports. Some of them, like Potassium 40, seem to have an anthropogenic contribution in the Gulf of Nicoya, possibly related to the activities developed in the adjacent hydrographic basins. In all sampled sites, the artificial element Cesium-137 has been detected within normal ranges and values are very similar to those measured in the coast and in the interior of Costa Rica in previous studies. Rev. Biol. Trop. 56 (Suppl. 4): 83-90. Epub 2009 June 30.
País:Portal de Revistas UCR
Institución:Universidad de Costa Rica
Repositorio:Portal de Revistas UCR
Lenguaje:Español
OAI Identifier:oai:portal.ucr.ac.cr:article/27207
Acceso en línea:https://revistas.ucr.ac.cr/index.php/rbt/article/view/27207
Palabra clave:Costa Rica
radionuclides
Culebra Bay
Gulf of Nicoya
Cocos Island
marine sediments
radionucleídos
Bahía Culebra
Golfo de Nicoya
Isla del Coco
sedimentos marinos