{"id":21411,"date":"2026-09-11T16:32:40","date_gmt":"2026-09-11T14:32:40","guid":{"rendered":"https:\/\/tera-environnement.com\/?post_type=faq&#038;p=21411"},"modified":"2026-09-11T16:32:40","modified_gmt":"2026-09-11T14:32:40","slug":"how-does-tera-environnement-identify-sources-of-indoor-air-contamination","status":"publish","type":"faq","link":"https:\/\/tera-environnement.com\/en\/faq\/how-does-tera-environnement-identify-sources-of-indoor-air-contamination\/","title":{"rendered":"How does TERA Environnement identify sources of indoor-air contamination?"},"content":{"rendered":"<p>TERA Environnement offers two complementary approaches. The first uses passive badges placed directly on the surface of an emitting material to measure formaldehyde and total VOCs in situ and identify the main VOCs released, without damaging the material. The second is laboratory screening using a micro-chamber emission system (\u00b5-CTE): the material is placed in the chamber and swept with an air flow, while emitted molecules are collected on a suitable analytical medium (impinger, thermal-desorption tube, etc.).<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-21411","faq","type-faq","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How does TERA Environnement identify sources of indoor-air contamination? - TERA Environnement<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tera-environnement.com\/en\/?post_type=faq&p=21411\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How does TERA Environnement identify sources of indoor-air contamination? - TERA Environnement\" \/>\n<meta property=\"og:description\" content=\"TERA Environnement offers two complementary approaches. The first uses passive badges placed directly on the surface of an emitting material to measure formaldehyde and total VOCs in situ and identify the main VOCs released, without damaging the material. The second is laboratory screening using a micro-chamber emission system (\u00b5-CTE): the material is placed in the [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/tera-environnement.com\/en\/?post_type=faq&amp;p=21411\" \/>\n<meta property=\"og:site_name\" content=\"TERA Environnement\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How does TERA Environnement identify sources of indoor-air contamination? - TERA Environnement","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/tera-environnement.com\/en\/?post_type=faq&p=21411","og_locale":"en_US","og_type":"article","og_title":"How does TERA Environnement identify sources of indoor-air contamination? - TERA Environnement","og_description":"TERA Environnement offers two complementary approaches. The first uses passive badges placed directly on the surface of an emitting material to measure formaldehyde and total VOCs in situ and identify the main VOCs released, without damaging the material. The second is laboratory screening using a micro-chamber emission system (\u00b5-CTE): the material is placed in the [&hellip;]","og_url":"https:\/\/tera-environnement.com\/en\/?post_type=faq&p=21411","og_site_name":"TERA Environnement","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/tera-environnement.com\/en\/?post_type=faq&p=21411","url":"https:\/\/tera-environnement.com\/en\/?post_type=faq&p=21411","name":"How does TERA Environnement identify sources of indoor-air contamination? - TERA Environnement","isPartOf":{"@id":"https:\/\/tera-environnement.com\/#website"},"datePublished":"2026-09-11T14:32:40+00:00","breadcrumb":{"@id":"https:\/\/tera-environnement.com\/en\/?post_type=faq&p=21411#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/tera-environnement.com\/en\/?post_type=faq&p=21411"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/tera-environnement.com\/en\/?post_type=faq&p=21411#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/tera-environnement.com\/en\/votre-qualite-de-lair-maintenant\/"},{"@type":"ListItem","position":2,"name":"Faqs","item":"https:\/\/tera-environnement.com\/faq\/"},{"@type":"ListItem","position":3,"name":"How does TERA Environnement identify sources of indoor-air contamination?"}]},{"@type":"WebSite","@id":"https:\/\/tera-environnement.com\/#website","url":"https:\/\/tera-environnement.com\/","name":"TERA Environnement","description":"Une soci\u00e9t\u00e9 du groupe tera","publisher":{"@id":"https:\/\/tera-environnement.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/tera-environnement.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/tera-environnement.com\/#organization","name":"TERA Environnement","url":"https:\/\/tera-environnement.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/tera-environnement.com\/#\/schema\/logo\/image\/","url":"https:\/\/tera-environnement.com\/wp-content\/uploads\/2023\/09\/Logotype_Tera_Sensor-seul_couleur-1.jpg","contentUrl":"https:\/\/tera-environnement.com\/wp-content\/uploads\/2023\/09\/Logotype_Tera_Sensor-seul_couleur-1.jpg","width":125,"height":90,"caption":"TERA Environnement"},"image":{"@id":"https:\/\/tera-environnement.com\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/tera-environnement.com\/en\/wp-json\/wp\/v2\/faq\/21411","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tera-environnement.com\/en\/wp-json\/wp\/v2\/faq"}],"about":[{"href":"https:\/\/tera-environnement.com\/en\/wp-json\/wp\/v2\/types\/faq"}],"wp:attachment":[{"href":"https:\/\/tera-environnement.com\/en\/wp-json\/wp\/v2\/media?parent=21411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}