{"id":19732,"date":"2018-08-20T17:04:30","date_gmt":"2018-08-20T15:04:30","guid":{"rendered":"https:\/\/secureair.it\/rischi-per-sistema-respiratorio\/"},"modified":"2023-07-19T11:46:42","modified_gmt":"2023-07-19T09:46:42","slug":"risks-for-the-respiratory-system","status":"publish","type":"page","link":"https:\/\/www.secureair.it\/en\/about-us\/risks-for-the-respiratory-system\/","title":{"rendered":"Risks for the respiratory system"},"content":{"rendered":"
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Fumes, dust, and exhalations can be very harmful if they reach the respiratory system of the human being which can be divided into three parts: the upper airways, the tracheobronchial tree, and the alveolar region.<\/strong> <\/span><\/p>\n

Based on this subdivision, three particle fractions have been defined according to their size: the inhalable, thoracic and alveolar fractions (according to AFNOR EN 481) which provide guidance on the penetration and deposition of particles into the respiratory system and their potential health effects.<\/span><\/p>\n\n\n\n
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\u2022 <\/span>Inhalable fraction: mass fraction of airborne particles that can enter the body from the mouth and nose, and then settle in the respiratory tract; they include particles whose aerodynamic diameters can reach 100 \u03bcm.<\/span><\/span><\/span><\/p>\n<\/div>\n<\/div>\n<\/td>\n

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  • Thoracic fraction: a mass fraction of particles that, when inhaled, can penetrate beyond the larynx; they include particles whose aerodynamic diameter can reach 30 \u03bcm.<\/span><\/li>\n
  • Alveolar fraction: a mass fraction of particles which, when inhaled, can penetrate to the alveoli of the lungs; they include particles whose aerodynamic diameter can reach 10 \u03bcm. <\/span>In relation to particles emitted outside welding and cutting activities having an aerodynamic diameter of less than 1 \u03bcm, the alveolar fraction plays a central role with regard to health effects. Inhalable dust data lead to an overestimation rather than an underestimation of exposure.<\/span><\/li>\n<\/ul>\n<\/div>\n<\/div>\n
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    Source: INRS ED 6132 Guide on welding fumes risks<\/span> <\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    Fumes, dust, and exhalations can be very harmful if they reach the respiratory system of the human being which can be divided into three parts: the upper airways, the tracheobronchial tree, and the alveolar region. Based on this subdivision, three particle fractions have been defined according to their size: the inhalable, thoracic and alveolar fractions […]<\/p>\n","protected":false},"author":1,"featured_media":9373,"parent":19480,"menu_order":23,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-19732","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nRisks for the respiratory system - 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\/en\/about-us\/risks-for-the-respiratory-system\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Risks for the respiratory system - 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