{"id":24191,"date":"2019-02-08T00:00:08","date_gmt":"2019-02-08T04:00:08","guid":{"rendered":"http:\/\/beyondpesticides.org\/dailynewsblog\/?p=24191"},"modified":"2019-02-08T14:39:16","modified_gmt":"2019-02-08T18:39:16","slug":"drinking-water","status":"publish","type":"post","link":"https:\/\/beyondpesticides.org\/dailynewsblog\/2019\/02\/drinking-water\/","title":{"rendered":"Drinking Water Contaminated with Neonicotinoid Insecticide Byproducts"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-24220\" src=\"https:\/\/beyondpesticides.org\/dailynewsblog\/wp-content\/uploads\/2019\/02\/images-1.jpg\" alt=\"\" width=\"321\" height=\"224\" \/>(<em>Beyond Pesticides<\/em>, February 8, 2019)\u00a0Scientists from the U.S. Geological Survey (USGS) and the University of Iowa (UI) have published <a href=\"https:\/\/www.nrdc.org\/experts\/jennifer-sass\/neonic-pesticide-may-become-more-toxic-tap-water\">worrisome news on the neonicotinoid front.<\/a> The experts discovered two metabolites of imidacloprid (a neonicotinoid insecticide) residues that had not previously been identified in drinking water \u2014 <a href=\"https:\/\/pubchem.ncbi.nlm.nih.gov\/compound\/10130527#section=Top\">desnitro-imidacloprid<\/a> and <a href=\"https:\/\/pubchem.ncbi.nlm.nih.gov\/compound\/15390532#section=Top\">imidacloprid-urea<\/a>. The researchers note both that these metabolites have never been evaluated for their potential risks to human and environmental health, and that there may be potential risks of anthropogenic compounds that can be created when water with neonicotinoid residues, and thus, these metabolites, undergo typical water treatment (often chlorination and\/or pH treatment). They note that, \u201cThe mammalian toxicity of transformation products formed during water treatment processes remains unknown. It is possible that chlorination of neonicotinoids and their metabolites will . . . alter their bioactivity.\u201d<\/p>\n<p><a href=\"https:\/\/www.nrdc.org\/experts\/jennifer-sass\/neonic-pesticide-may-become-more-toxic-tap-water\">The joint, federally funded collaboration investigated neonicotinoid pesticides<\/a> (\u201cneonics\u201d) in tap water to determine whether neonic metabolites are relevant to pesticide exposure through drinking water, and to identify any products of the chlorination of neonics and their metabolites. The scientists simulated realistic drinking water conditions in their research to demonstrate, in laboratory circumstances, that chlorinated disinfection byproduct chemicals are produced. The study, conducted by seven researchers and titled \u201cChlorinated Byproducts of Neonicotinoids and Their Metabolites: An Unrecognized Human Exposure Potential?\u201d was <a href=\"https:\/\/pubs.acs.org\/action\/doSearch?AllField=Chlorinated+Byproducts+of+Neonicotinoids+and+Their+Metabolites&amp;type=within&amp;publication=381801784\">published in <em>Environmental Science &amp; Technology Letters<\/em><\/a> in mid-January 2019.<\/p>\n<p>Because neonicotinoids are the most widely used category of insecticide, residues are commonly found on surface waters, from which drinking water is not infrequently sourced. Previous work by this group of researchers (by Klarich, K.L., et al., published in 20179 in <em>Environmental Science &amp; Technology Letters<\/em>) and a Canadian study \u2014 by Sultana, T., et al., and <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acs.estlett.7b00081\">published in the journal <em>Chemosphere<\/em> in 2018<\/a> \u2014 found the presence of neonic residues in drinking water.<\/p>\n<p>The metabolites of neonics are generated in the environment in microbial breakdown processes and some abiotic processes (photolysis and hydrolysis). Given the ubiquity of these compounds, it is unsurprising that they would now be identified in drinking water. There is additional concern that \u2014 because metabolites, such as desnitro-imidacloprid and descyano-thiacloprid, are more than 300 and nearly 200 times more toxic to mammals, respectively, than imidacloprid \u2014 even very low levels of exposure may carry risk of harm.<\/p>\n<p>The experts from USGS and UI also warn that these metabolites may morph further into new forms of chlorinated disinfection byproducts (DBPs) during routine water treatment (chlorination) processes. These DBPs have never been tracked or tested and may represent risks to human health. (Other kinds of <a href=\"https:\/\/www.cdc.gov\/safewater\/chlorination-byproducts.html\">DBPs in drinking water are highly toxic<\/a>.) The study authors note increased concern that the DBPs of such metabolites may exhibit enhanced bioactivity \u2014 e.g., carcinogenicity and\/or genotoxicity. The Results and Discussion section of the <a href=\"https:\/\/www.nrdc.org\/experts\/jennifer-sass\/neonic-pesticide-may-become-more-toxic-tap-water\">published research states:<\/a> \u201cThe greater potential toxicity and the frequent presence in these [subject] water samples of neonicotinoid metabolites demonstrate the need to consider their fate and persistence in drinking water treatment systems (e.g., during chlorination and other treatment processes) and their potential effects on human health. Indeed, neonicotinoids have been measured year-round in streams of impacted watersheds, and our results demonstrate that consumers of drinking water derived from vulnerable sources may be exposed to neonicotinoids and their metabolites.\u201d<\/p>\n<p>The presence of <a href=\"https:\/\/beyondpesticides.org\/dailynewsblog\/2017\/04\/study-finds-neonicotinoids-in-water-straight-from-your-tap\/\">neonics in drinking water<\/a> is concerning per se, because federal regulators have never addressed what might be \u201csafe\u201d levels of such insecticides in tap water, but the potential harms related to the presence of neonic metabolites in drinking water raises worry to another level. Neonicotinoids are the most widely used category of insecticides, <a href=\"https:\/\/beyondpesticides.org\/dailynewsblog\/2018\/01\/epas-assessments-seeds-coated-neonicotinoid-insecticides-confirm-dangers-birds-aquatic-organisms\/\">posing both acute and chronic risks for aquatic life and birds<\/a>; the toxicity of DBPs is unknown, though it may actually be greater than that of the neonic itself. Neonics are poorly regulated by the Environmental Protection Agency (EPA) and other regulators: their toxicity, which was assumed by EPA to be confined to target insects, is actually devastating for\u00a0beneficial insects (bees and other pollinators), and for aquatic invertebrate species. Neonicotinoids have been linked with <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/27385285\">neurological effects<\/a> and with <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/24456651\">autism-like impacts<\/a> on children who were exposed prenatally.<\/p>\n<p>In part in response to this emerging research, the <a href=\"http:\/\/nrdc.org\/\">Natural Resources Defense Council<\/a> is <a href=\"https:\/\/www.nrdc.org\/experts\/jennifer-sass\/neonic-pesticide-may-become-more-toxic-tap-water\">asking EPA<\/a> to include all neonic metabolites and DBPs in its\u00a0<a href=\"https:\/\/www.epa.gov\/pollinator-protection\/schedule-review-neonicotinoid-pesticides\">human health risk assessment<\/a>\u00a0of the neonic pesticides, due later in 2019. <a href=\"https:\/\/www.nrdc.org\/experts\/jennifer-sass\/neonic-pesticide-may-become-more-toxic-tap-water\">The organization adds that<\/a> \u201cIn addition to including all relevant neonic metabolites in its risk assessment, EPA should also assess the cumulative risks from all the neonic pesticides and their toxic metabolites together. It is alarming that EPA seems to have no plan for conducting a cumulative risk assessment for this toxic and persistent class of pesticides.\u201d<\/p>\n<p><a href=\"https:\/\/www.beyondpesticides.org\/programs\/bee-protective-pollinators-and-pesticides\/chemicals-implicated\">Neonicotinoids are a real problem,<\/a> certainly for pollinators and other insects, birds, fish, invertebrates, and amphibians, but also, for humans. Because more than <a href=\"https:\/\/www.beyondpesticides.org\/programs\/bee-protective-pollinators-and-pesticides\/seedsthatpoison\">90% of neonicotinoids are used to coat seeds,<\/a> and thus, represent a huge vector for spread of the insecticide and <a href=\"https:\/\/beyondpesticides.org\/dailynewsblog\/2018\/01\/epas-assessments-seeds-coated-neonicotinoid-insecticides-confirm-dangers-birds-aquatic-organisms\/\">associated risks,<\/a> a shift away from this practice is critical. (See Beyond Pesticides\u2019 <a href=\"https:\/\/www.beyondpesticides.org\/assets\/media\/documents\/pollinators\/documents\/SeedDirectoryBiFoldBrochure.pdf\">resource page for growers and gardeners<\/a> \u2014 Companies that Grow and Distribute Organic Seeds and Plants.) There are far-less-toxic ways to deal with pest issues; see Beyond Pesticides\u2019 <em><a href=\"https:\/\/www.beyondpesticides.org\/assets\/media\/documents\/pollinators\/documents\/ManagingPestsWithoutNeonics.pdf\">Managing Pests Safely Without Neonicotinoids,<\/a><\/em> and its advocacy for <a href=\"https:\/\/www.beyondpesticides.org\/programs\/organic-agriculture\/overview\">organic farming\u00a0 practices<\/a>, which reduce and\/or obviate the need for such insecticides, herbicides, and fungicides.<\/p>\n<p><em>All unattributed positions and opinions in this piece are those of Beyond Pesticides.<\/em><\/p>\n<p>Sources: <a href=\"https:\/\/www.nrdc.org\/experts\/jennifer-sass\/neonic-pesticide-may-become-more-toxic-tap-water\">https:\/\/www.nrdc.org\/experts\/jennifer-sass\/neonic-pesticide-may-become-more-toxic-tap-water<\/a> and <a href=\"https:\/\/pubs.acs.org\/doi\/abs\/10.1021\/acs.estlett.8b00706?journalCode=estlcu&amp;\">https:\/\/pubs.acs.org\/doi\/abs\/10.1021\/acs.estlett.8b00706?journalCode=estlcu&amp;<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>(Beyond Pesticides, February 8, 2019)\u00a0Scientists from the U.S. Geological Survey (USGS) and the University of Iowa (UI) have published worrisome news on the neonicotinoid front. The experts discovered two metabolites of imidacloprid (a neonicotinoid insecticide) residues that had not previously been identified in drinking water \u2014 desnitro-imidacloprid and imidacloprid-urea. The researchers note both that these metabolites have never been evaluated for their potential risks to human and environmental health, and that there may be potential risks of anthropogenic compounds that can be created when water with neonicotinoid residues, and thus, these metabolites, undergo typical water treatment (often chlorination and\/or pH treatment). They note that, \u201cThe mammalian toxicity of transformation products formed during water treatment processes remains unknown. It is possible that chlorination of neonicotinoids and their metabolites will . . . alter their bioactivity.\u201d The joint, federally funded collaboration investigated neonicotinoid pesticides (\u201cneonics\u201d) in tap water to determine whether neonic metabolites are relevant to pesticide exposure through drinking water, and to identify any products of the chlorination of neonics and their metabolites. The scientists simulated realistic drinking water conditions in their research to demonstrate, in laboratory circumstances, that chlorinated disinfection byproduct chemicals are produced. The study, conducted by seven researchers [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-24191","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Drinking Water Contaminated with Neonicotinoid Insecticide Byproducts - Beyond Pesticides Daily News Blog<\/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:\/\/beyondpesticides.org\/dailynewsblog\/2019\/02\/drinking-water\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Drinking Water Contaminated with Neonicotinoid Insecticide Byproducts - Beyond Pesticides Daily News Blog\" \/>\n<meta property=\"og:description\" content=\"(Beyond Pesticides, February 8, 2019)\u00a0Scientists from the U.S. Geological Survey (USGS) and the University of Iowa (UI) have published worrisome news on the neonicotinoid front. The experts discovered two metabolites of imidacloprid (a neonicotinoid insecticide) residues that had not previously been identified in drinking water \u2014 desnitro-imidacloprid and imidacloprid-urea. The researchers note both that these metabolites have never been evaluated for their potential risks to human and environmental health, and that there may be potential risks of anthropogenic compounds that can be created when water with neonicotinoid residues, and thus, these metabolites, undergo typical water treatment (often chlorination and\/or pH treatment). They note that, \u201cThe mammalian toxicity of transformation products formed during water treatment processes remains unknown. It is possible that chlorination of neonicotinoids and their metabolites will . . . alter their bioactivity.\u201d The joint, federally funded collaboration investigated neonicotinoid pesticides (\u201cneonics\u201d) in tap water to determine whether neonic metabolites are relevant to pesticide exposure through drinking water, and to identify any products of the chlorination of neonics and their metabolites. The scientists simulated realistic drinking water conditions in their research to demonstrate, in laboratory circumstances, that chlorinated disinfection byproduct chemicals are produced. The study, conducted by seven researchers [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/beyondpesticides.org\/dailynewsblog\/2019\/02\/drinking-water\/\" \/>\n<meta property=\"og:site_name\" content=\"Beyond Pesticides Daily News Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/beyondpesticides\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/beyondpesticides\/\" \/>\n<meta property=\"article:published_time\" content=\"2019-02-08T04:00:08+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2019-02-08T18:39:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/beyondpesticides.org\/dailynewsblog\/wp-content\/uploads\/2019\/02\/images-1.jpg\" \/>\n<meta name=\"author\" content=\"Beyond Pesticides\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@ByondPesticides\" \/>\n<meta name=\"twitter:site\" content=\"@ByondPesticides\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Beyond Pesticides\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/beyondpesticides.org\/dailynewsblog\/2019\/02\/drinking-water\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/beyondpesticides.org\/dailynewsblog\/2019\/02\/drinking-water\/\"},\"author\":{\"name\":\"Beyond Pesticides\",\"@id\":\"https:\/\/beyondpesticides.org\/dailynewsblog\/#\/schema\/person\/1b5c0a0981b549cc5b628770073031f4\"},\"headline\":\"Drinking Water Contaminated with Neonicotinoid Insecticide Byproducts\",\"datePublished\":\"2019-02-08T04:00:08+00:00\",\"dateModified\":\"2019-02-08T18:39:16+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/beyondpesticides.org\/dailynewsblog\/2019\/02\/drinking-water\/\"},\"wordCount\":913,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/beyondpesticides.org\/dailynewsblog\/#organization\"},\"image\":{\"@id\":\"https:\/\/beyondpesticides.org\/dailynewsblog\/2019\/02\/drinking-water\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/beyondpesticides.org\/dailynewsblog\/wp-content\/uploads\/2019\/02\/images-1.jpg\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/beyondpesticides.org\/dailynewsblog\/2019\/02\/drinking-water\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/beyondpesticides.org\/dailynewsblog\/2019\/02\/drinking-water\/\",\"url\":\"https:\/\/beyondpesticides.org\/dailynewsblog\/2019\/02\/drinking-water\/\",\"name\":\"Drinking Water Contaminated with Neonicotinoid Insecticide Byproducts - 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The founders, who established Beyond Pesticides (originally as National Coalition Against the Misuse of Pesticides) as a nonprofit membership organization in 1981, felt that without the existence of such an organized, national network, local, state and national pesticide policy would become, under chemical industry pressure, increasingly unresponsive to public health and environmental concerns. Beyond Pesticides believes that people must have a voice in decisions that affect them directly. We believe decisions should not be made for us by chemical companies or by decision-makers who either do not have all of the facts or refuse to consider them. Learn more about our work, read A Year in Review\u20142021, our accomplishments are your victories! Beyond Pesticides seeks to protect healthy air, water, land, and food for ourselves and future generations. By forging ties with governments, nonprofits, and people who rely on these natural resources, we reduce the need for unnecessary pesticide use and protect public health and the environment. Beyond Pesticides provides hands-on services to the public and supports local action by: identifying and interpreting hazards; and, designing safe pest management programs. With the information provided by Beyond Pesticides, people may not only be able to make informed choices and adopt practices that protect themselves and their families from unnecessary exposure to pesticides, but they will be able to effect changes on community-wide pest management decisions and policies that govern pesticide use, such as pesticide uses in parks, schools, for community insect control and along roadsides. 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The experts discovered two metabolites of imidacloprid (a neonicotinoid insecticide) residues that had not previously been identified in drinking water \u2014 desnitro-imidacloprid and imidacloprid-urea. The researchers note both that these metabolites have never been evaluated for their potential risks to human and environmental health, and that there may be potential risks of anthropogenic compounds that can be created when water with neonicotinoid residues, and thus, these metabolites, undergo typical water treatment (often chlorination and\/or pH treatment). They note that, \u201cThe mammalian toxicity of transformation products formed during water treatment processes remains unknown. It is possible that chlorination of neonicotinoids and their metabolites will . . . alter their bioactivity.\u201d The joint, federally funded collaboration investigated neonicotinoid pesticides (\u201cneonics\u201d) in tap water to determine whether neonic metabolites are relevant to pesticide exposure through drinking water, and to identify any products of the chlorination of neonics and their metabolites. The scientists simulated realistic drinking water conditions in their research to demonstrate, in laboratory circumstances, that chlorinated disinfection byproduct chemicals are produced. 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