{"id":23248,"date":"2023-07-26T11:48:41","date_gmt":"2023-07-26T11:48:41","guid":{"rendered":"https:\/\/stopcarcinogensatwork.eu\/good-practice\/alternatief-voor-formaldehyde-als-conserveringsmiddel-in-watermonsters\/"},"modified":"2025-09-04T10:55:07","modified_gmt":"2025-09-04T10:55:07","slug":"alternatief-voor-formaldehyde-als-conserveringsmiddel-in-watermonsters","status":"publish","type":"good-practice","link":"https:\/\/stopcarcinogensatwork.eu\/nl\/good-practice\/alternatief-voor-formaldehyde-als-conserveringsmiddel-in-watermonsters\/","title":{"rendered":"Alternatief voor formaldehyde als conserveermiddel in watermonsters"},"content":{"rendered":"<p>Bio-indicatoren van macro-invertebraten worden gebruikt om de biologische kwaliteit van water te evalueren. Traditioneel wordt het biologisch materiaal van de monsters geconserveerd met formaldehyde, dat zowel carcinogenen als sensibilisatoren is. <\/p>\n<h2>Een alternatieve methode<\/h2>\n<p>Een alternatieve methode, gepubliceerd door de Direction Regionale de l&#8217;Environnement (DREN) Lotharingen-Frankrijk, maakt gebruik van minder gevaarlijke middelen. Hierbij worden de monsters ge\u00ebleutrizeerd en wordt een drijvend deel, geconcentreerd in ongewervelde dieren, dat wordt bewaard in ethanol, gescheiden van een gesedimenteerd deel (zand, stenen) dat ter plekke wordt ingevroren. Monsters die te klein zijn om te elutrieren worden volledig in ethanol bewaard, monsters die niet ge\u00ebluutrieerd kunnen worden (slib) worden volledig ingevroren.  <\/p>\n","protected":false},"template":"","sector":[],"carcinogens":[332],"stop":[325],"country":[322],"class_list":["post-23248","good-practice","type-good-practice","status-publish","hentry","carcinogens-formaldehyde-nl","stop-substitutiemaatregel","country-frankrijk"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Alternatief voor formaldehyde als conserveermiddel in watermonsters<\/title>\n<meta name=\"description\" content=\"Veel andere bedrijven nemen maatregelen om blootstelling aan carcinogenen volledig te vermijden of werknemers hiertegen te beschermen.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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