1.0Beyond Pesticides Daily News Bloghttps://beyondpesticides.org/dailynewsblogBeyond Pesticideshttps://beyondpesticides.org/dailynewsblog/author/beyond-pesticides/rich600338<blockquote class="wp-embedded-content" data-secret="vzfs52CLjv"><a href="https://beyondpesticides.org/dailynewsblog/2009/02/new-test-detects-triclosan-in-water/">New Test Detects Triclosan in Water</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://beyondpesticides.org/dailynewsblog/2009/02/new-test-detects-triclosan-in-water/embed/#?secret=vzfs52CLjv" width="600" height="338" title="“New Test Detects Triclosan in Water” — Beyond Pesticides Daily News Blog" data-secret="vzfs52CLjv" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); /* ]]> */ </script> (Beyond Pesticides, February 4, 2009) A new test for triclosan, developed by researchers at the U.S. Department of Agriculture’s Agricultural Research Service (ARS), could help to expedite environmental monitoring of this widely used antibacterial chemical which has been found at high concentrations in rivers and other water resources. Triclosan is linked to a range of health and environmental effects, from skin irritation, bacterial resistance and endocrine disruption, to dioxin contamination and adverse impacts on fragile aquatic ecosystems. The new test called “magnetic particle enzyme immunoassay,” can detect triclosan at a concentration of 20 parts per trillion (ppt)-the equivalent of 1 ounce in 31 million tons. The research team at ARS evaluated the test by using it to detect triclosan and its derivative, methyl-triclosan, in river water, tap water and sewage samples from three municipal plants. They were able to detect triclosan below 20 ppt (the detection limit), indicating very low levels of triclosan in the collected samples. ARS chemist, Weilin L. Shelver, at the ARS Animal Metabolism-Agricultural Chemicals Research Unit in Fargo, N.D., developed the new triclosan test in collaboration with Jennifer Church, Lisa Kamp and Fernando Rubio, a research team at Abraxis, Inc., of Warminster, Pa. Ms. Shelver says […]