{"id":17789,"date":"2020-06-19T04:21:35","date_gmt":"2020-06-19T04:21:35","guid":{"rendered":"https:\/\/www.radiation-dosimetry.org\/o-que-e-contaminante-contaminacao-definicao\/"},"modified":"2020-07-22T07:27:29","modified_gmt":"2020-07-22T07:27:29","slug":"o-que-e-contaminante-contaminacao-definicao","status":"publish","type":"post","link":"https:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-contaminante-contaminacao-definicao\/","title":{"rendered":"O que \u00e9 contaminante &#8211; contamina\u00e7\u00e3o &#8211; defini\u00e7\u00e3o"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-u-clearfix su-u-trim\">Um contaminante \u00e9 geralmente referido como constituinte indesejado, subst\u00e2ncia nociva ou impureza em um local (material, corpo f\u00edsico, ambiente natural, local de trabalho) onde n\u00e3o se destina ou se deseja que seja.\u00a0Dosimetria de Radia\u00e7\u00e3o<\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<figure id=\"attachment_25949\" class=\"wp-caption alignright\" aria-describedby=\"caption-attachment-25949\"><a href=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/radioactive-contamination.png\"><img loading=\"lazy\" class=\"wp-image-25949 lazy-loaded\" src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/radioactive-contamination.png\" alt=\"contamina\u00e7\u00e3o radioativa\" width=\"365\" height=\"319\" data-lazy-type=\"image\" data-src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/radioactive-contamination.png\" \/><\/a><figcaption id=\"caption-attachment-25949\" class=\"wp-caption-text\">A contamina\u00e7\u00e3o radioativa consiste em material radioativo, que gera radia\u00e7\u00e3o ionizante.\u00a0\u00c9 a fonte de radia\u00e7\u00e3o, n\u00e3o a pr\u00f3pria radia\u00e7\u00e3o.<\/figcaption><\/figure>\n<p>Um\u00a0<strong>contaminante<\/strong>\u00a0\u00e9 geralmente referido como constituinte indesejado, subst\u00e2ncia nociva ou impureza em um local (material, corpo f\u00edsico, ambiente natural, local de trabalho) onde n\u00e3o se destina ou se deseja que seja.\u00a0<strong>Os contaminantes<\/strong>\u00a0t\u00eam um significado muito mais geral, pois podem ser definidos em disciplinas como qu\u00edmica, prote\u00e7\u00e3o ambiental,\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/radiation-protection\/\">prote\u00e7\u00e3o contra radia\u00e7\u00e3o<\/a>\u00a0ou agricultura.<\/p>\n<p><strong>A contamina\u00e7\u00e3o radioativa<\/strong>\u00a0\u00e9 referida como a presen\u00e7a de\u00a0<strong>subst\u00e2ncias radioativas<\/strong>\u00a0indesejadas\u00a0em superf\u00edcies ou dentro de s\u00f3lidos (incluindo o corpo humano), l\u00edquidos ou gases, onde a presen\u00e7a deles \u00e9 involunt\u00e1ria ou indesej\u00e1vel.\u00a0<strong>A contamina\u00e7\u00e3o radioativa<\/strong>\u00a0consiste em \u00e1tomos radioativos (material) que escaparam do sistema ou estrutura que normalmente os conteria.\u00a0Como a contamina\u00e7\u00e3o radioativa \u00e9 material radioativo, a radia\u00e7\u00e3o ionizante \u00e9 emitida pela contamina\u00e7\u00e3o.\u00a0\u00c9 muito importante qual material (qual radiois\u00f3topo) \u00e9 o contaminante radioativo.\u00a0Tamb\u00e9m \u00e9 muito importante distinguir entre\u00a0<strong>contamina\u00e7\u00e3o radioativa<\/strong>\u00a0e\u00a0<strong>radia\u00e7\u00e3o em si<\/strong>\u00a0.<\/p>\n<h2>Contaminantes Radiadores<\/h2>\n<p><strong>A contamina\u00e7\u00e3o radioativa<\/strong>\u00a0consiste em material radioativo, que gera radia\u00e7\u00e3o ionizante.\u00a0\u00c9 a fonte de radia\u00e7\u00e3o, n\u00e3o a pr\u00f3pria radia\u00e7\u00e3o.\u00a0Sempre que o material radioativo n\u00e3o estiver em um cont\u00eainer de fonte radioativa selado e possa se espalhar para outros objetos, a contamina\u00e7\u00e3o radioativa \u00e9 uma possibilidade.\u00a0<strong>A contamina\u00e7\u00e3o radioativa<\/strong>\u00a0pode ser caracterizada pelos seguintes pontos:<\/p>\n<ul>\n<li>A contamina\u00e7\u00e3o radioativa consiste em material radioativo (contaminantes), que pode ser s\u00f3lido, l\u00edquido ou gasoso.\u00a0Contaminantes grandes podem ser vis\u00edveis, mas voc\u00ea n\u00e3o pode ver a radia\u00e7\u00e3o produzida.<\/li>\n<li>Quando liberados, os contaminantes podem se espalhar pelo ar, pela \u00e1gua ou apenas por contato mec\u00e2nico.<\/li>\n<li>N\u00e3o podemos proteger a contamina\u00e7\u00e3o.<\/li>\n<li>Podemos mitigar a contamina\u00e7\u00e3o protegendo a integridade das barreiras (cont\u00eainer de origem, revestimento de combust\u00edvel,\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/nuclear-reactor\/reactor-pressure-vessel\/\">vaso do reator<\/a>\u00a0,\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/containment-building\/\">pr\u00e9dio de conten\u00e7\u00e3o<\/a>\u00a0)<\/li>\n<li>Como os contaminantes interagem quimicamente, eles podem estar contidos em objetos como o corpo humano.<\/li>\n<li>Podemos nos livrar da contamina\u00e7\u00e3o por muitos processos mec\u00e2nicos, qu\u00edmicos (descontaminar superf\u00edcies) ou biol\u00f3gicos (\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/radioactive-decay-law\/half-life\/biological-half-life\/\">meia-vida biol\u00f3gica<\/a>\u00a0).<\/li>\n<li>\u00c9 da maior import\u00e2ncia, qual material \u00e9 o contaminante radioativo (\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/radioactive-decay-law\/half-life\/biological-half-life\/\">meia-vida<\/a>\u00a0, modo de decomposi\u00e7\u00e3o, energia).<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div tabindex=\"0\" role=\"button\">\n<p>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p>Este artigo \u00e9 baseado na tradu\u00e7\u00e3o autom\u00e1tica do artigo original em ingl\u00eas. Para mais informa\u00e7\u00f5es, consulte o artigo em ingl\u00eas. Voc\u00ea pode nos ajudar. Se voc\u00ea deseja corrigir a tradu\u00e7\u00e3o, envie-a para: translations@nuclear-power.com ou preencha o formul\u00e1rio de tradu\u00e7\u00e3o on-line. Agradecemos sua ajuda, atualizaremos a tradu\u00e7\u00e3o o mais r\u00e1pido poss\u00edvel. Obrigado.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Um contaminante \u00e9 geralmente referido como constituinte indesejado, subst\u00e2ncia nociva ou impureza em um local (material, corpo f\u00edsico, ambiente natural, local de trabalho) onde n\u00e3o se destina ou se deseja que seja.\u00a0Dosimetria de Radia\u00e7\u00e3o A contamina\u00e7\u00e3o radioativa consiste em material radioativo, que gera radia\u00e7\u00e3o ionizante.\u00a0\u00c9 a fonte de radia\u00e7\u00e3o, n\u00e3o a pr\u00f3pria radia\u00e7\u00e3o. Um\u00a0contaminante\u00a0\u00e9 geralmente &#8230; <a title=\"O que \u00e9 contaminante &#8211; contamina\u00e7\u00e3o &#8211; defini\u00e7\u00e3o\" class=\"read-more\" href=\"https:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-contaminante-contaminacao-definicao\/\" aria-label=\"More on O que \u00e9 contaminante &#8211; contamina\u00e7\u00e3o &#8211; defini\u00e7\u00e3o\">Ler mais<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[51],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>O que \u00e9 contaminante - contamina\u00e7\u00e3o - defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"Um contaminante \u00e9 geralmente referido como constituinte indesejado, subst\u00e2ncia nociva ou impureza em um local (material, corpo f\u00edsico, ambiente natural, local de trabalho) onde n\u00e3o se destina ou se deseja que seja. 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