{"id":17503,"date":"2026-07-15T10:29:29","date_gmt":"2026-07-15T08:29:29","guid":{"rendered":"https:\/\/igienair.com\/?p=17503"},"modified":"2026-09-16T15:07:34","modified_gmt":"2026-09-16T13:07:34","slug":"trichloramine-thm-les-polluants-invisibles-de-vos-halls-de-bassins","status":"publish","type":"post","link":"https:\/\/igienair.com\/lu\/qualite-de-l-air-interieur\/trichloramine-thm-les-polluants-invisibles-de-vos-halls-de-bassins\/","title":{"rendered":"Trichloramine, THM : les polluants invisibles de vos halls de bassins"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>Qui est expos\u00e9 au risques sanitaires ?<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Points essentiels \u00e0 retenir : <\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Origine :<\/strong> La trichloramine na\u00eet du m\u00e9lange chlore + pollution organique (baigneurs).<\/li>\n\n\n\n<li><strong>Sant\u00e9 :<\/strong> Risque av\u00e9r\u00e9 d&rsquo;asthme et d&rsquo;irritations pour le personnel et les nageurs.<\/li>\n\n\n\n<li><strong>Seuil :<\/strong> La limite recommand\u00e9e est de <strong>0,5 mg\/m\u00b3<\/strong> dans l&rsquo;air.<\/li>\n\n\n\n<li><strong>Action :<\/strong> Une mesure combin\u00e9e (air et eau) est indispensable pour ajuster la ventilation et le traitement de l&rsquo;eau.<\/li>\n\n\n\n<li><strong>Solutions :<\/strong> D\u00e9stratification, d\u00e9chloramination UV et maintenance CVC sont les cl\u00e9s d&rsquo;un air sain<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Trichloramine piscine : mesure, risques et solutions QAI | Igienair<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019odeur de chlore en piscine cache la trichloramine. D\u00e9couvrez les risques pour la sant\u00e9, les normes en vigueur et nos solutions de mesure et de traitement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019odeur caract\u00e9ristique des piscines n\u2019est pas celle du chlore. C\u2019est celle de la trichloramine, un compos\u00e9 irritant qui se forme lorsque les produits de d\u00e9sinfection chlor\u00e9s r\u00e9agissent avec la mati\u00e8re organique apport\u00e9e par les baigneurs (sueur, urine, r\u00e9sidus cutan\u00e9s).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce n\u2019est pas le seul polluant en jeu. L\u2019air des halls de bassins contient \u00e9galement des trihalom\u00e9thanes (THM) des sous-produits de chloration class\u00e9s pr\u00e9occupants pour la sant\u00e9 en raison de leur toxicit\u00e9 potentielle \u00e0 long terme.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Qui est expos\u00e9 au risques sanitaires ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tout le monde est concern\u00e9 dans un \u00e9tablissement de natation, mais pas au m\u00eame degr\u00e9.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Les  nageurs et usagers y sont expos\u00e9s ponctuellement lors de leur fr\u00e9quentation.<\/li>\n\n\n\n<li> Le personnel  (ma\u00eetres-nageurs, agents d\u2019entretien, personnel d\u2019accueil) y est expos\u00e9 quotidiennement, parfois pendant toute une carri\u00e8re.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Les effets sont connus &nbsp;par l&rsquo;ANSES et l&rsquo;INRS : : irritations oculaires et respiratoires, g\u00eane chronique, et pour les professionnels les plus expos\u00e9s, un risque accru de pathologies respiratoires.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ce que dit la r\u00e9glementation :<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019exploitant d\u2019un \u00e9tablissement aquatique est tenu de respecter les principes g\u00e9n\u00e9raux de pr\u00e9vention applicables aux locaux \u00e0 \u00e9missions sp\u00e9cifiques, conform\u00e9ment au Code du travail. Cela inclut l\u2019\u00e9valuation des concentrations de polluants dans l\u2019air en conditions r\u00e9elles d\u2019exploitation une fois par an.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En pratique, peu d\u2019\u00e9tablissements r\u00e9alisent ces mesures de mani\u00e8re syst\u00e9matique.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Les normes et recommandations pour les piscines publiques : <\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">En France, les recommandations de l&rsquo;<strong>ARS<\/strong> et les avis de l&rsquo;<strong>ANSES <\/strong>fixent 2 valeurs d&rsquo;exposition : la publique \u00e0 0,3 mg\/m3 source ANSES et la professionnelle \u00e0 0,5mg\/m3 source INRS. Au-del\u00e0 de ce seuil, l&rsquo;environnement devient pathog\u00e8ne pour les travailleurs et les pratiquants. La surveillance r\u00e9guli\u00e8re des concentrations de chlore combin\u00e9 dans l&rsquo;eau est \u00e9galement un indicateur cl\u00e9 pour limiter le d\u00e9gazage de ces polluants dans l&rsquo;atmosph\u00e8re du bassin.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ce que nous faisons :<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les \u00e9quipes d&rsquo; IGIENAIR &#8211; ZAACK interviennent sur site, en p\u00e9riode d\u2019activit\u00e9, pour r\u00e9aliser des campagnes de mesure cibl\u00e9es :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mesure de la trichloramine et des THM dans l\u2019air des halls de bassins<\/li>\n\n\n\n<li>\u00c9valuation du renouvellement d\u2019air et de la ventilation<\/li>\n\n\n\n<li>Analyse des r\u00e9sultats au regard des valeurs de r\u00e9f\u00e9rence<\/li>\n\n\n\n<li>Recommandations op\u00e9rationnelles en cas de d\u00e9passement<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Chaque intervention donne lieu \u00e0 un rapport exploitable, avec des actions correctives hi\u00e9rarchis\u00e9es.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment mesurer efficacement la trichloramine ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le contr\u00f4le de la trichloramine (NCI) piscine n\u00e9cessite une m\u00e9thodologie rigoureuse. <strong>ZAACK <\/strong>d\u00e9ploie des outils de mesure de pointe :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kits de pr\u00e9l\u00e8vement sur support solide (m\u00e9thode de r\u00e9f\u00e9rence) pour des analyses de pr\u00e9cision.<\/li>\n\n\n\n<li>Analyseurs et solutions de mesure en continu pour cartographier les pics de pollution selon la fr\u00e9quentation.<\/li>\n\n\n\n<li>\u00c9valuation du renouvellement d\u2019air et de l&rsquo;efficacit\u00e9 de la ventilation.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Besoin Client<\/strong><\/td><td><strong>Solution Igienair \/ Zaack<\/strong><\/td><td><strong>B\u00e9n\u00e9fice<\/strong><\/td><\/tr><tr><td><strong>Preuve de conformit\u00e9<\/strong><\/td><td>Pr\u00e9l\u00e8vements et analyses labo (Igienair)<\/td><td>Garantie face \u00e0 l&rsquo;ARS et l&rsquo;inspection du travail.<\/td><\/tr><tr><td><strong>Pilotage au quotidien<\/strong><\/td><td>Monitoring CO2 et ICON (Zaack)<\/td><td>Ajuster la ventilation en temps r\u00e9el pour r\u00e9duire les odeurs.<\/td><\/tr><tr><td><strong>Optimisation technique<\/strong><\/td><td>Audit a\u00e9raulique et d\u00e9bits (Igienair)<\/td><td>R\u00e9duire la facture \u00e9nerg\u00e9tique en ventilant \u00ab\u00a0juste ce qu&rsquo;il faut\u00a0\u00bb.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Quelles solutions techniques pour r\u00e9duire la pollution ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pour assainir les halls de bassins, plusieurs leviers technologiques existent :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>La d\u00e9stratification <\/strong>: l&rsquo;installation de d\u00e9stratificateurs d&rsquo;air permet de briser la nappe de polluants stagnante \u00e0 la surface de l&rsquo;eau.<\/li>\n\n\n\n<li><strong>Le traitement de l&rsquo;eau<\/strong> : l&rsquo;utilisation de d\u00e9chloraminateurs (UV moyenne pression) ou de filtres \u00e0 charbon actif r\u00e9duit la formation des pr\u00e9curseurs dans l&rsquo;eau.<\/li>\n\n\n\n<li><strong>Optimisation CVC<\/strong> : assurer un apport d&rsquo;air neuf suffisant et un balayage efficace des zones mortes<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Vous \u00eates concern\u00e9 ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Collectivit\u00e9s, gestionnaires de centres aquatiques, soci\u00e9t\u00e9s de maintenance, <strong>contactez-nous pour \u00e9valuer la qualit\u00e9 de l\u2019air de vos installations.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ : Qualit\u00e9 de l&rsquo;air et piscine<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Comment se forme la trichloramine en piscine ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Elle se forme par r\u00e9action entre le chlore libre (d\u00e9sinfectant) et l&rsquo;azote apport\u00e9 par les baigneurs (sueur, ur\u00e9e). C&rsquo;est ce gaz volatil qui provoque l&rsquo;odeur caract\u00e9ristique et les irritations.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Quels sont les sympt\u00f4mes d&rsquo;une surexposition ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les sympt\u00f4mes imm\u00e9diats incluent les yeux rouges, la toux et des picotements dans le nez. \u00c0 long terme, les ma\u00eetres-nageurs peuvent d\u00e9velopper de l&rsquo;asthme chronique ou des bronchites.<br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Comment r\u00e9duire le taux de trichloramine dans l&rsquo;air ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Il faut agir sur deux fronts : limiter les apports organiques (douche savonn\u00e9e obligatoire) et optimiser la ventilation (d\u00e9stratification) ainsi que le traitement de l&rsquo;eau (UV ou charbon actif).<br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Est-ce que le taux de chlore dans l&rsquo;eau influence l&rsquo;air ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Oui, un taux de chlore combin\u00e9 \u00e9lev\u00e9 dans l&rsquo;eau favorise le d\u00e9gazage de la trichloramine. Un bon \u00e9quilibre chimique de l&rsquo;eau est la premi\u00e8re \u00e9tape pour une bonne qualit\u00e9 de l&rsquo;air int\u00e9rieur.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Qui est expos\u00e9 au risques sanitaires ? Points essentiels \u00e0 retenir : Trichloramine piscine : mesure, risques et solutions QAI | Igienair L\u2019odeur de chlore en piscine cache la trichloramine. D\u00e9couvrez les risques pour la sant\u00e9, les normes en vigueur et nos solutions de mesure et de traitement. L\u2019odeur caract\u00e9ristique des piscines n\u2019est pas celle [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":17509,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[296,288,285],"tags":[],"class_list":["post-17503","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-audit-des-reseaux-de-ventilation","category-qualite-de-l-air-interieur","category-traitement-de-l-air"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Trichloramine, THM : les polluants invisibles des halls de bassins<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez les risques li\u00e9s \u00e0 la trichloramine et aux THM dans les piscines, et les solutions pour \u00e9valuer la qualit\u00e9 de l\u2019air int\u00e9rieur.\" \/>\n<meta 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