{"id":39531,"date":"2024-07-25T12:34:17","date_gmt":"2024-07-25T10:34:17","guid":{"rendered":"https:\/\/www.oxytec.com\/legionellen\/"},"modified":"2026-03-13T09:43:49","modified_gmt":"2026-03-13T08:43:49","slug":"l-gionelles","status":"publish","type":"post","link":"https:\/\/www.oxytec.com\/fr\/polluants\/legionelles\/","title":{"rendered":"L\u00e9gionelles"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"author":15,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[648],"tags":[673],"wf_post_folders":[478],"class_list":["post-39531","post","type-post","status-publish","format-standard","hentry","category-schadstoffe","tag-schadstoffe"],"acf":{"schadstoff":"l\u00e9gionelles","hauptbild_Schadstoffe":39532,"cas_nr":"","strukturformel":"","h1_headline":"D\u00e9sinfection UV contre les l\u00e9gionelles","seitentext_teil_1":"<h4>Que sont les l\u00e9gionelles ?<\/h4>\r\nLes l\u00e9gionelles sont des bact\u00e9ries aquatiques pr\u00e9sentes dans les syst\u00e8mes d'eau naturels et artificiels. L'esp\u00e8ce la plus connue, Legionella pneumophila, est l'agent pathog\u00e8ne responsable de la l\u00e9gionellose, une forme grave de pneumonie. Ces bact\u00e9ries se multiplient particuli\u00e8rement bien dans l'eau chaude et repr\u00e9sentent donc un risque consid\u00e9rable dans les installations d'eau potable et de climatisation.\r\n<h4>Origine<\/h4>\r\nLes l\u00e9gionelles se trouvent dans les milieux naturels d'eau douce tels que les lacs et les rivi\u00e8res, mais elles constituent un danger pour la sant\u00e9 dans les syst\u00e8mes d'eau artificiels tels que les installations de refroidissement, les syst\u00e8mes d'eau chaude, les bains \u00e0 remous et les syst\u00e8mes d'eau potable. Elles se multiplient particuli\u00e8rement bien dans l'eau chaude stagnante \u00e0 des temp\u00e9ratures comprises entre 25 et 45 \u00b0C.\r\n<h4>D\u00e9tection<\/h4>\r\nLes l\u00e9gionelles sont des bact\u00e9ries microscopiques qui ne peuvent \u00eatre d\u00e9tect\u00e9es par inspection visuelle. Leur pr\u00e9sence est mise en \u00e9vidence par des tests microbiologiques et des cultures. Dans les b\u00e2timents \u00e9quip\u00e9s de syst\u00e8mes d'eau, un \u00e9chantillonnage et une analyse r\u00e9guliers sont n\u00e9cessaires pour garantir la s\u00e9curit\u00e9 et d\u00e9tecter rapidement toute contamination.\r\n<h4>Valeurs limites<\/h4>\r\nEn Allemagne, les valeurs limites pour les l\u00e9gionelles dans l'eau potable sont r\u00e9glement\u00e9es par le d\u00e9cret sur l'eau potable (TrinkwV). La valeur technique est de 100 unit\u00e9s formant colonie (UFC) pour 100 ml d'eau. Si cette valeur est d\u00e9pass\u00e9e, des analyses approfondies et des mesures visant \u00e0 r\u00e9duire la concentration en l\u00e9gionelles sont n\u00e9cessaires.\r\n<h4>Dangers<\/h4>\r\nSant\u00e9 : les l\u00e9gionelles provoquent la l\u00e9gionellose, une forme grave de pneumonie, ainsi que la fi\u00e8vre de Pontiac, une maladie similaire \u00e0 la grippe. L'infection se produit par inhalation de gouttelettes d'eau contamin\u00e9es sous forme d'a\u00e9rosol. Les personnes \u00e2g\u00e9es, les fumeurs et les personnes dont le syst\u00e8me immunitaire est affaibli sont particuli\u00e8rement expos\u00e9s.\r\n\r\nEnvironnement : la lutte contre les l\u00e9gionelles n\u00e9cessite souvent l'utilisation de produits chimiques qui peuvent avoir des effets n\u00e9gatifs sur l'environnement. La d\u00e9sinfection par UV offre une alternative \u00e9cologique, car elle ne n\u00e9cessite aucun additif chimique.\r\n\r\nPr\u00e9judice \u00e9conomique : la contamination par les l\u00e9gionelles peut causer des dommages \u00e9conomiques consid\u00e9rables, notamment des co\u00fbts li\u00e9s aux mesures de d\u00e9sinfection, aux pertes d'exploitation et aux frais de sant\u00e9. Elle peut \u00e9galement nuire \u00e0 la confiance du public dans la s\u00e9curit\u00e9 des syst\u00e8mes d'approvisionnement en eau.","bild_anwendung":null,"bild-unterschrift":"L\u00e9gende de la photo","seitentext_teil_2":"<h4>Technologies alternatives<\/h4>\r\nOutre nos solutions, il existe d'autres technologies telles que les filtres \u00e0 charbon actif classiques et les syst\u00e8mes de ventilation simples. Cependant, ceux-ci pr\u00e9sentent souvent des inconv\u00e9nients tels qu'une consommation d'\u00e9nergie \u00e9lev\u00e9e, une capacit\u00e9 de purification limit\u00e9e, un encombrement important, des d\u00e9lais de mise en \u0153uvre longs et des co\u00fbts d'investissement \u00e9lev\u00e9s.\r\n<h4>Avantages de la solution Oxytec<\/h4>\r\n<ul>\r\n \t<li><strong>Conception compacte<\/strong> : faible encombrement par rapport aux syst\u00e8mes traditionnels.<\/li>\r\n \t<li><strong>Amortissement rapide<\/strong> : gr\u00e2ce \u00e0 des co\u00fbts d'exploitation faibles et \u00e0 une efficacit\u00e9 \u00e9lev\u00e9e.<\/li>\r\n \t<li><strong>Respect de l'environnement<\/strong> : impact environnemental minimal gr\u00e2ce \u00e0 des technologies innovantes.<\/li>\r\n \t<li><strong>R\u00e9duction efficace des l\u00e9gionelles<\/strong> : haut degr\u00e9 de purification avec une consommation d'\u00e9nergie minimale<\/li>\r\n<\/ul>"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>L\u00e9gionelles dans l&#039;air \u00e9vacu\u00e9 \u2013 oxytec<\/title>\n<meta name=\"description\" content=\"Que sont les L\u00e9gionelles ? 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