{"id":3637,"date":"2017-12-01T00:00:00","date_gmt":"2017-11-30T23:00:00","guid":{"rendered":"http:\/\/loopweb.org\/?articles=isotops-radioactius"},"modified":"2026-01-16T12:33:36","modified_gmt":"2026-01-16T11:33:36","slug":"isotops-radioactius","status":"publish","type":"articles","link":"https:\/\/loopweb.org\/ca\/?articles=isotops-radioactius","title":{"rendered":"Is\u00f2tops radioactius"},"content":{"rendered":"\n<p>Els is\u00f2tops radioactius, d&#8217;origen natural o artificial, es poden utilitzar com a tra\u00e7adors de nombrosos processos ambientals segons la seva vida mitjana, origen i caracter\u00edstiques biogeoqu\u00edmiques espec\u00edfiques. De juliol de 2013 a juliol de 2014 es van recollir mostres de precipitaci\u00f3 (20), coberta de neu (8), capa de gel (12), columna d&#8217;aigua (24) i terra (40) a la vall de Sant Nicolau dins del projecte IS\u00d3TOPOS. L&#8217;objectiu \u00e9s estimar la transfer\u00e8ncia dels is\u00f2tops naturals 7Be, 210Pb i 210Po entre l&#8217;atmosfera &#8211; coberta de neu\/gel &#8211; llacs. Aix\u00f2 permetr\u00e0 avaluar l&#8217;efici\u00e8ncia amb qu\u00e8 la capa de neu\/gel intercepta els fluxos atmosf\u00e8rics d&#8217;esp\u00e8cies d&#8217;inter\u00e8s del sistema, com els is\u00f2tops estables, i estudiar el seu dest\u00ed quan es produeix la fusi\u00f3. L&#8217;an\u00e0lisi de 7Be i 210Po\/210Pb s&#8217;est\u00e0 duent a terme al Laboratori de Radioactivitat Ambiental (Universitat Aut\u00f2noma Barcelona).    <\/p>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image alignright size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"400\" src=\"http:\/\/loopweb.org\/wp-content\/uploads\/radioisotopes-snow.jpg\" alt=\"\" class=\"wp-image-2760\"\/><figcaption class=\"wp-element-caption\">Mostreig de radiois\u00f2tops a la capa nevada<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image alignleft size-full\"><img decoding=\"async\" width=\"400\" height=\"300\" src=\"http:\/\/loopweb.org\/wp-content\/uploads\/radioisotopes-water.jpg\" alt=\"\" class=\"wp-image-2762\"\/><figcaption class=\"wp-element-caption\">Mostreig de radiois\u00f2tops a la columna d&#8217;aigua del llac Llebreta<\/figcaption><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Els is\u00f2tops radioactius, d&#8217;origen natural o artificial, es poden utilitzar com a tra\u00e7adors de nombrosos processos ambientals segons la seva vida mitjana, origen i caracter\u00edstiques biogeoqu\u00edmiques espec\u00edfiques. De juliol de 2013 a juliol de 2014 es van recollir mostres de precipitaci\u00f3 (20), coberta de neu (8), capa de gel (12), columna d&#8217;aigua (24) i terra [&hellip;]<\/p>\n","protected":false},"featured_media":2763,"template":"","article-related-theme":[],"articles-related-project":[77],"class_list":["post-3637","articles","type-articles","status-publish","has-post-thumbnail","hentry","articles-related-project-isotopos"],"_links":{"self":[{"href":"https:\/\/loopweb.org\/ca\/wp-json\/wp\/v2\/articles\/3637","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/loopweb.org\/ca\/wp-json\/wp\/v2\/articles"}],"about":[{"href":"https:\/\/loopweb.org\/ca\/wp-json\/wp\/v2\/types\/articles"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/loopweb.org\/ca\/wp-json\/wp\/v2\/media\/2763"}],"wp:attachment":[{"href":"https:\/\/loopweb.org\/ca\/wp-json\/wp\/v2\/media?parent=3637"}],"wp:term":[{"taxonomy":"article-related-theme","embeddable":true,"href":"https:\/\/loopweb.org\/ca\/wp-json\/wp\/v2\/article-related-theme?post=3637"},{"taxonomy":"articles-related-project","embeddable":true,"href":"https:\/\/loopweb.org\/ca\/wp-json\/wp\/v2\/articles-related-project?post=3637"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}