{"id":29010,"date":"2018-08-20T17:04:30","date_gmt":"2018-08-20T15:04:30","guid":{"rendered":"https:\/\/www.secureair.it\/a-propos-de-nous\/rischi-per-sistema-respiratorio\/"},"modified":"2023-07-19T12:17:56","modified_gmt":"2023-07-19T10:17:56","slug":"risques-pour-le-systeme-respiratoire","status":"publish","type":"page","link":"https:\/\/www.secureair.it\/fr\/a-propos-de-nous\/risques-pour-le-systeme-respiratoire\/","title":{"rendered":"Risques pour le syst\u00e8me respiratoire"},"content":{"rendered":"

Les fum\u00e9es, les poussi\u00e8res et les \u00e9manations peuvent \u00eatre tr\u00e8s nocives si elles atteignent le syst\u00e8me respiratoire de l\u2019\u00eatre humain qui peut \u00eatre divis\u00e9 en trois parties\u00a0: les voies respiratoires sup\u00e9rieures, l\u2019arbre trach\u00e9obronchique et la r\u00e9gion alv\u00e9olaire.<\/strong><\/p>\n

Sur la base de cette subdivision, trois fractions de particules ont \u00e9t\u00e9 d\u00e9finies selon leur taille\u00a0: les fractions inhalable, thoracique et alv\u00e9olaire (selon la norme AFNOR EN 481) qui fournissent des indications sur la p\u00e9n\u00e9tration et le d\u00e9p\u00f4t des particules dans le syst\u00e8me respiratoire et sur leurs effets potentiels sur la sant\u00e9.<\/p>\n\n\n\n
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Fraction inhalable\u00a0: fraction massique de particules en suspension dans l\u2019air qui peuvent p\u00e9n\u00e9trer dans l\u2019organisme par la bouche et le nez puis se d\u00e9poser dans les voies respiratoires; elles comprennent des particules dont le diam\u00e8tre a\u00e9rodynamique peut atteindre 100 \u03bcm.<\/p>\n<\/div>\n<\/div>\n<\/td>\n

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Fraction thoracique : fraction massique de particules qui, une fois inhal\u00e9es, peuvent p\u00e9n\u00e9trer au-del\u00e0 du larynx; elles comprennent des particules dont le diam\u00e8tre a\u00e9rodynamique peut atteindre 3 \u03bcm.<\/p>\n

Fraction alv\u00e9olaire : fraction massique de particules qui, une fois inhal\u00e9es, peuvent p\u00e9n\u00e9trer jusqu\u2019aux alv\u00e9oles pulmonaires; elles comprennent des particules dont le diam\u00e8tre a\u00e9rodynamique peut atteindre 10 \u03bcm. En ce qui concerne les particules \u00e9mises en dehors des activit\u00e9s de soudage et de d\u00e9coupe d\u2019un diam\u00e8tre a\u00e9rodynamique inf\u00e9rieur \u00e0 1 \u03bcm, la fraction alv\u00e9olaire joue un r\u00f4le central en ce qui concerne les effets sur la sant\u00e9. Les donn\u00e9es relatives aux poussi\u00e8res inhalables conduisent plus \u00e0 une surestimation qu\u2019\u00e0 une sous-estimation de l\u2019exposition.<\/p>\n<\/div>\n<\/div>\n

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Source\u00a0: Guide INRS ED 6132 sur les risques de fum\u00e9es de soudage<\/span><\/em><\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Les fum\u00e9es, les poussi\u00e8res et les \u00e9manations peuvent \u00eatre tr\u00e8s nocives si elles atteignent le syst\u00e8me respiratoire de l\u2019\u00eatre humain qui peut \u00eatre divis\u00e9 en trois parties\u00a0: les voies respiratoires sup\u00e9rieures, l\u2019arbre trach\u00e9obronchique et la r\u00e9gion alv\u00e9olaire. Sur la base de cette subdivision, trois fractions de particules ont \u00e9t\u00e9 d\u00e9finies selon leur taille\u00a0: les fractions […]<\/p>\n","protected":false},"author":1,"featured_media":27424,"parent":28512,"menu_order":24,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-29010","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nRisques pour le syst\u00e8me respiratoire - Secure Air<\/title>\n<meta name=\"description\" content=\"Fumi, polveri ed esalazioni possono essere molto dannosi se raggiungono il sistema respiratorio dell'essere umano\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.secureair.it\/fr\/a-propos-de-nous\/risques-pour-le-systeme-respiratoire\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Risques pour le syst\u00e8me respiratoire - 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