{"id":3126,"date":"2026-03-10T11:00:00","date_gmt":"2026-03-10T10:00:00","guid":{"rendered":"https:\/\/www.securetec.net\/2026\/03\/10\/newsletter-kokainkontamination-kokain-auf-abwegen\/"},"modified":"2026-05-06T14:03:38","modified_gmt":"2026-05-06T12:03:38","slug":"cocaine-contamination","status":"publish","type":"post","link":"https:\/\/www.securetec.net\/en\/2026\/03\/10\/cocaine-contamination\/","title":{"rendered":"Cocaine contamination"},"content":{"rendered":"<div  class='flex_column av-1ye58m-69d41f7f799fc3041dfc251f09df9336 av_one_full  avia-builder-el-0  el_before_av_image  avia-builder-el-first  first flex_column_div  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mmkgn84t-a61539853e9988a6f03ea885651f651c\">\n.avia-image-container.av-mmkgn84t-a61539853e9988a6f03ea885651f651c img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-mmkgn84t-a61539853e9988a6f03ea885651f651c .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-mmkgn84t-a61539853e9988a6f03ea885651f651c av-styling- avia-align-center  avia-builder-el-1  avia-builder-el-no-sibling '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-3132 avia-img-lazy-loading-not-3132 avia_image ' src=\"https:\/\/www.securetec.net\/wp-content\/uploads\/2026\/03\/Chemische-Formel-Kokain_1500x500.jpg\" alt='Chemische Struktur von Kokain aus wei\u00dfem Pulver mit gerolltem Geldschein' title=''  height=\"500\" width=\"1500\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.securetec.net\/wp-content\/uploads\/2026\/03\/Chemische-Formel-Kokain_1500x500.jpg 1500w, https:\/\/www.securetec.net\/wp-content\/uploads\/2026\/03\/Chemische-Formel-Kokain_1500x500-300x100.jpg 300w, https:\/\/www.securetec.net\/wp-content\/uploads\/2026\/03\/Chemische-Formel-Kokain_1500x500-1030x343.jpg 1030w, https:\/\/www.securetec.net\/wp-content\/uploads\/2026\/03\/Chemische-Formel-Kokain_1500x500-768x256.jpg 768w, https:\/\/www.securetec.net\/wp-content\/uploads\/2026\/03\/Chemische-Formel-Kokain_1500x500-705x235.jpg 705w\" sizes=\"(max-width: 1500px) 100vw, 1500px\" \/><\/div><\/div><\/div><\/div>\n\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mgq7fh2r-2dabd2728094cb573d239c4859b9edaa\">\n#top .hr.hr-invisible.av-mgq7fh2r-2dabd2728094cb573d239c4859b9edaa{\nheight:25px;\n}\n<\/style>\n<div  class='hr av-mgq7fh2r-2dabd2728094cb573d239c4859b9edaa hr-invisible  avia-builder-el-3  el_after_av_image  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-mluoo115-fad2ea425bb9f7e6a9564f11d3ffa5c8 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h1>Cocaine contamination<\/h1>\n<h2>From cash to creatures \u2013 cocaine is running wild<\/h2>\n<p><strong>A large number of studies have found traces of drugs\u00a0\u2013 especially cocaine\u00a0\u2013 on banknotes. But it\u2019s not only cash that can be contaminated. Bank cards, door handles and photocopiers often retain traces of the substance. Residues of cocaine have even been detected in animals.<\/strong><\/p>\n<h2><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-8584\" src=\"https:\/\/www.securetec.net\/wp-content\/uploads\/2026\/03\/Kokainlinie-Bankkarte-Geldschein_3x2.jpeg\" alt=\"Gerollte Geldscheine, eine Linie aus Kokainpulver und Bankkarten auf grauem Untergrund\" width=\"300\" height=\"200\" \/><\/p>\n<h2>Following the powder trail<\/h2>\n<p>Smooth surfaces like desks and photocopiers are ideal for \u201cdoing a line\u201d. A bank card serves as a precision tool for shaping the powder into even lines so that none goes to waste. Finally, a seemingly harmless banknote can be rolled up into a tube through which the \u201cline\u201d is snorted into the nose. In this way, drug residues that are invisible to the naked eye are deposited on everyday surfaces and objects.<\/p>\n<h2>Clean bank notes are rare<\/h2>\n<p>Cocaine-contaminated banknotes are frequently reported on in the media. Shortly after the introduction of the euro in early 2002, only a small number of banknotes in Germany had such residues. However, just seven months later, nine out of ten did. Smaller notes were found to be more contaminated. One study in Ireland in 2007 even found traces of cocaine on every single banknote tested.<sup>1,\u00a02<\/sup><\/p>\n<h3>Polymer versus paper notes<\/h3>\n<p>The material from which notes are made plays a role in the transfer of residues, with polymer banknotes much more likely to transfer cocaine particles than paper notes. Paper notes consist mainly of cotton, making them more porous so that they act like a sponge. As a result, cocaine residues adhere better to them and are less likely to be transferred to other surfaces. Euro notes are still made from cotton. In contrast, some countries\u00a0\u2013 such as Australia\u00a0\u2013 have adopted polymer banknotes in recent years.<sup>3,\u00a04<\/sup><\/p>\n<h2><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-8585\" src=\"https:\/\/www.securetec.net\/wp-content\/uploads\/2026\/03\/Wolke-aus-Kokainstaub_3x2.jpeg\" alt=\"Wolke aus wei\u00dfem Kokainpulver vor schwarzem Hintergrund\" width=\"300\" height=\"200\" \/>Trace levels compared<\/h2>\n<p>Levels of cocaine contamination on banknotes vary widely across the globe. The highest concentrations have been found in the United States, with over 1300\u00a0\u03bcg per note detected in some studies. On average, however, the values detected are in the single to double-digit microgram range. Within Europe, Spain is clearly leading the pack\u00a0\u2013 with up to 889\u00a0\u03bcg of cocaine residues per note, Spanish banknotes are the most contaminated. On average, they carry around five times more traces of cocaine than German euro notes\u00a0\u2013 which is no coincidence, given that Spain is a key point entry point for the drug into Europe.<sup>5<\/sup><\/p>\n<h2>Animals on drugs<\/h2>\n<p>In 2024, Brazilian researchers discovered higher concentrations of cocaine and its main metabolite benzoylecgonine in the tissues of sharpnose sharks than had previously been found in other marine animals.<sup>6<\/sup> The European eel is also suffering from the effects of exposure to cocaine in river water. Numerous studies from around the world have detected residues of drugs and their metabolites in samples taken from bodies of water. This can be explained by the widespread use of drugs and by variations in the effectiveness of waste water treatment.<sup>7<\/sup><\/p>\n<h2>Cocaine is in the air<\/h2>\n<p>Drugs and psychoactive substances are becoming a focal point for air analysis. Cocaine, among other substances, has been detected in air measurements taken in almost all large cities around the world. A nationwide study in Italy also found that cocaine was the most prevalent drug in the air in both urban and rural areas, with Milan top of the list. However, the concentrations detected aren\u2019t sufficient to make people \u201chigh\u201d or unfit to drive.<sup>8<\/sup><\/p>\n<h2>A rising trend<\/h2>\n<p>According to the 2025 report by the European Union Drugs Agency (EUDA), the ready availability of cocaine is steadily increasing in Europe. As a result, rising concentrations of residues are to be expected.<sup>9<\/sup><\/p>\n<\/div><\/section>\n<div  class='hr av-g82jd-83b065b6d70837985c8485fa31cc1e56 hr-default  avia-builder-el-5  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-mgq70hbs-9dc47e015acf20dba1cff76c9d11c83e '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>Take care&nbsp;\u2013 test correctly with DrugWipe!<\/h2>\n<p>Traces of cocaine are to be found almost everywhere&nbsp;\u2013 especially on surfaces. DrugWipe reacts to even the tiniest of traces. It is therefore essential to use the correct test procedure to ensure a valid result. The pads on the sample collector must only come into contact with saliva from the test subject before being placed in the test cassette. Under no circumstances is the sample collector to be set down on any surface during the test procedure.<\/p>\n<\/div><\/section>\n<div  class='hr av-706uji-92a00cea7595f59b91ee297cade5e38c hr-default  avia-builder-el-7  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-mluumlgt-9530ffa69f7c605ae7f96c9e74c3b5c0 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2 style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-397 size-medium\" src=\"https:\/\/www.securetec.net\/wp-content\/uploads\/2025\/10\/drugwipe-s605g-300x69.png\" alt=\"Drogenschnelltest DrugWipe&nbsp;S&nbsp;605&nbsp;G\" width=\"300\" height=\"69\" srcset=\"https:\/\/www.securetec.net\/wp-content\/uploads\/2025\/10\/drugwipe-s605g-300x69.png 300w, https:\/\/www.securetec.net\/wp-content\/uploads\/2025\/10\/drugwipe-s605g-768x176.png 768w, https:\/\/www.securetec.net\/wp-content\/uploads\/2025\/10\/drugwipe-s605g-705x161.png 705w, https:\/\/www.securetec.net\/wp-content\/uploads\/2025\/10\/drugwipe-s605g.png 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/h2>\n<h2 style=\"text-align: center;\">DrugWipe S 605 G&nbsp;\u2013\u00a06 drug groups in 5 minutes<br \/>\nJust ask&nbsp;\u2013 we\u2019re always happy to help.<\/h2>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mluuwmob-d3d55988080da931f1789212f54881a8\">\n#top .hr.hr-invisible.av-mluuwmob-d3d55988080da931f1789212f54881a8{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-mluuwmob-d3d55988080da931f1789212f54881a8 hr-invisible  avia-builder-el-9  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-mmakas22-e4fdef32b6557414c1141bd1d99e807b '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div class=\"wpb_text_column wpb_content_element\">\n<div class=\"wpb_wrapper\">\n<p style=\"font-size: 8pt;\">References:<br \/>\n<sup>1<\/sup> No author (2003), Fast alle Euro-Noten tragen Kokainspuren (\u201cAlmost all euro notes show traces of cocaine\u201d), <a href=\"https:\/\/www.spiegel.de\/wissenschaft\/mensch\/drogengeld-fast-alle-euro-noten-tragen-kokainspuren-a-254372.html\" target=\"_blank\" rel=\"noopener\"><em>spiegel.de<\/em> <\/a>(20.01.2026)<br \/>\n<sup>2<\/sup> Dublin City University (2007), 100-percent Contamination Of Euro Notes With Cocaine, <a href=\"https:\/\/www.sciencedaily.com\/releases\/2007\/01\/070116093548.htm\" target=\"_blank\" rel=\"noopener\"><em>Science Daily<\/em><\/a>, 29.1.26;<br \/>\n<sup>3<\/sup> Amaral, M.A. et al. (2022), Trace evidence dynamics of cocaine on banknotes [\u2026], Science and Justice, 62;<br \/>\n<sup>4<\/sup> Altmann, K. (2024), Von der Baumwolle zur Banknote: Der Weg der Euro-Scheine (\u201cFrom cotton to banknote: the journey of a euro note\u201d),<a href=\"https:\/\/bankenverband.de\/verbraucher\/von-der-baumwolle-zur-banknote-der-weg-der-euro-scheine\" target=\"_blank\" rel=\"noopener\"><em> bankenverband.<\/em><\/a><em>de<\/em>, 3.2.26;<br \/>\n<sup>5<\/sup> Plataforma SINC. (2008), Spanish Bank Notes Contain Highest Traces Of Cocaine [\u2026], <a href=\"https:\/\/www.sciencedaily.com\/releases\/2008\/07\/080731073648.htm\" target=\"_blank\" rel=\"noopener\"><em>ScienceDaily<\/em><\/a>, 20.01.26;<br \/>\n<sup>6<\/sup> Prinz, U. (2024), Haie auf Koks (\u201cSharks on coke\u201d), <a href=\"https:\/\/www.riffreporter.de\/de\/international\/haie-kokain-umweltverschmutzung-brasilien-oekosystem\" target=\"_blank\" rel=\"noopener\"><em>riffreporter.de<\/em><\/a>, 21.1.26;<br \/>\n<sup>7<\/sup> Capaldo, A. et al. (2018), Effects of environmental cocaine concentrations [&#8230;], Science of The Total Environment, 640-641;<br \/>\n<sup>8<\/sup> Zambas-Adams, P. et al. (2022), Analytical Approaches and Trends in the Determination of Psychoactive Drugs in Air, Sci, 4;<br \/>\n<sup>9<\/sup> No author (2025), Cocaine \u2013 the current situation in Europe, EUDA-Bericht<\/p>\n<p style=\"font-size: 8pt;\">Image provided by:<br \/>\nSecuretec Detektions-Systeme AG; eyegelb \u2013 stock.adobe.com; Pixel-Shot \u2013 stock.adobe.com; Jannik \u2013 stock.adobe.com<\/p>\n<\/div>\n<div class=\"wpb_wrapper\"><\/div>\n<\/div>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-20kcv3-fb1157b8f4b4ac8bee1de96942828add\">\n#top .hr.hr-invisible.av-20kcv3-fb1157b8f4b4ac8bee1de96942828add{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-20kcv3-fb1157b8f4b4ac8bee1de96942828add hr-invisible  avia-builder-el-11  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-mluuqu8f-4c6bf32995833a88b8b63b59e3d3c18c '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div class=\"wpb_text_column wpb_content_element\"><div class='w3eden'><!-- WPDM Link Template: Default Template -->\n\n<div class=\"link-template-default card mb-2\">\n    <div class=\"card-body\">\n        <div class=\"media\">\n            <div class=\"mr-3 img-48\"><img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\" src=\"https:\/\/www.securetec.net\/wp-content\/plugins\/download-manager\/assets\/file-type-icons\/pdf.svg\" \/><\/div>\n            <div class=\"media-body\">\n                <h3 class=\"package-title\"><a href='https:\/\/www.securetec.net\/en\/download\/securetec-newsletter-cocaine-contamination\/'>Securetec newsletter: cocaine contamination<\/a><\/h3>\n                <div class=\"text-muted text-small\"><i class=\"fas fa-copy\"><\/i> 1 file(s) <i class=\"fas fa-hdd ml-3\"><\/i> 338.02 KB<\/div>\n            <\/div>\n            <div class=\"ml-3\">\n                <a class='wpdm-download-link download-on-click btn btn-primary ' rel='nofollow' href='#' data-downloadurl=\"https:\/\/www.securetec.net\/en\/download\/securetec-newsletter-cocaine-contamination\/?wpdmdl=3088&refresh=6ac5181f5e12f1791301663\">Download<\/a>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<\/div><\/div>\n<\/div><\/section>\n","protected":false},"excerpt":{"rendered":"<p>Cocaine contamination: Studies reveal contamination on banknotes, cards, door handles, and office tools. Even animals show residues, highlighting how far cocaine pollution has spread into daily life.<\/p>\n","protected":false},"author":3,"featured_media":3128,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[24],"tags":[],"class_list":["post-3126","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Newsletter: cocaine contamination<\/title>\n<meta name=\"description\" content=\"Cocaine contamination: traces found on banknotes, cards, and door handles - even animals show signs of contamination.\" \/>\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.securetec.net\/en\/2026\/03\/10\/cocaine-contamination\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Newsletter: cocaine contamination\" \/>\n<meta property=\"og:description\" content=\"Cocaine contamination: traces found on banknotes, cards, and door handles - 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