{"id":6956,"date":"2020-06-14T13:22:25","date_gmt":"2020-06-14T13:22:25","guid":{"rendered":"https:\/\/wp.rinconeducativo.org\/?recursos=radiacion-natural"},"modified":"2026-06-19T11:37:19","modified_gmt":"2026-06-19T09:37:19","slug":"que-es-radiacion-natural","status":"publish","type":"re_recurso","link":"https:\/\/rinconeducativo.org\/es\/recursos-educativos\/que-es-radiacion-natural\/","title":{"rendered":"\u00bfQu\u00e9 es la radiaci\u00f3n natural?"},"content":{"rendered":"\n
La radiaci\u00f3n es la emisi\u00f3n, propagaci\u00f3n y transferencia de energ\u00eda en cualquier medio, ya sea en forma de ondas electromagn\u00e9ticas o de part\u00edculas. Una onda electromagn\u00e9tica es una forma de transportar energ\u00eda (por ejemplo, el calor que transmite la luz del Sol). A mayor frecuencia, m\u00e1s energ\u00eda, y viceversa.<\/p>\n\n\n\n
Las personas est\u00e1n expuestas continuamente a radiaciones ionizantes. De estas radiaciones, unas proceden de la propia naturaleza, sin que el ser humano haya intervenido, y otras son artificiales.<\/p>\n\n\n\n
Las radiaciones de origen natural constituyen el fondo radiactivo natural, que puede provenir de:<\/p>\n\n\n\n
\n
Espacio exterior (radiaci\u00f3n c\u00f3smica):<\/strong> llegan a la Tierra cada segundo [protones (86%) y part\u00edculas alfa (12%)]. Puesto que la atm\u00f3sfera absorbe parcialmente las radiaciones, el fondo natural \u2014debido a esta causa\u2014 var\u00eda con la altitud, de tal modo que es menor en el nivel del mar que en lo alto de una monta\u00f1a. Para el promedio mundial, la radiaci\u00f3n c\u00f3smica supone un 10% de la dosis.<\/li>\n\n\n\n
Corteza terrestre:<\/strong> supone un 14% de la dosis promedio mundial.<\/li>\n\n\n\n
Organismo humano:<\/strong> principalmente is\u00f3topos de carbono y potasio, que suponen aproximadamente el 52% de la dosis promedio mundial. <\/li>\n<\/ul>\n\n\n\n
Como promedio, la dosis procedente del fondo natural que recibe una persona en Espa\u00f1a es del orden de 2,4 mSv\/a\u00f1o.<\/p>\n\n\n
Las personas est\u00e1n expuestas continuamente a radiaciones ionizantes. De estas radiaciones, unas proceden de la propia naturaleza, sin que el ser humano haya intervenido, y otras son artificiales.<\/p>\n","protected":false},"author":1088,"featured_media":41487,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[8183],"edad":[7029,7030,7031,7028],"recursos_tipo":[7016],"recursos_tema":[7087,6993],"clasificacion_anterior":[],"class_list":["post-6956","re_recurso","type-re_recurso","status-publish","has-post-thumbnail","hentry","tag-radiacion","edad-de-6-a-12","edad-de-12-a-16","edad-mas-16","edad-todas-las-edades","recursos_tipo-teoria","recursos_tema-aplicaciones","recursos_tema-radiacion-y-rayos-x"],"acf":[],"yoast_head":"\n
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