Glyphosate is a transformation product of a widely used aminopolyphosphonate complexing agent

Glyphosate is a transformation product of a widely used aminopolyphosphonate complexing agent | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Glyphosate is a transformation product of a widely used aminopolyphosphonate complexing agent Anna Röhnelt, Philipp Martin, Mathis Athmer, Sarah Bieger, Daniel Buchner, and 4 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4692988/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 11 Mar, 2025 Read the published version in Nature Communications → Version 1 posted You are reading this latest preprint version Abstract We demonstrate for the first time that the broad-spectrum herbicide glyphosate is a stable transformation product during manganese-driven oxidation of diethylenetriamine penta(methylenephosphonate) (DTPMP), a complexing agent widely used in household and industry applications. Glyphosate formation was observed at circumneutral pH (i) in the presence of MnO 2 (with and without dissolved O 2 ) as well as (ii) in the presence of Mn 2+ and O 2 . Maximum glyphosate yields varied with reaction conditions and ranged from 0.06 to 0.16 mol-%. Given the ubiquitous presence of manganese in the environment and wastewater treatment systems, Mn-driven transformation of DTPMP likely contributes to glyphosate formation under environmentally relevant conditions. Our results support recent reports of municipal wastewater as a previously neglected source of glyphosate in European surface waters with aminopolyphosphonates as suspected precursors. Therefore, the current approach to protecting water resources from glyphosate contamination needs to be revised, which has significant environmental, legal and economic implications. Earth and environmental sciences/Environmental sciences/Environmental chemistry Physical sciences/Chemistry/Environmental chemistry Full Text Additional Declarations There is NO Competing Interest. Supplementary Files SIRoehneltetalGlyphosate.pdf Cite Share Download PDF Status: Published Journal Publication published 11 Mar, 2025 Read the published version in Nature Communications → Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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