{"id":24748,"date":"2026-05-21T14:04:09","date_gmt":"2026-05-21T18:04:09","guid":{"rendered":"https:\/\/www.merkley.senate.gov\/?p=24748"},"modified":"2026-05-21T14:04:10","modified_gmt":"2026-05-21T18:04:10","slug":"merkley-senators-epa-must-address-microplastic-pollution-to-protect-human-health","status":"publish","type":"post","link":"https:\/\/www.merkley.senate.gov\/es\/merkley-senators-epa-must-address-microplastic-pollution-to-protect-human-health\/","title":{"rendered":"Merkley, Senators: EPA Must Address Microplastic Pollution to Protect Human Health"},"content":{"rendered":"<p>Washington, D.C. \u2013 Oregon\u2019s U.S. Senator Jeff Merkley today led his Senate colleagues\u2014including Senators Sheldon Whitehouse (D-RI), Cory Booker (D-NJ), Alex Padilla (D-CA), Kirsten Gillibrand (D-NY), Richard Blumenthal (D-CT), Peter Welch (D-VT), and Ron Wyden (D-OR)\u2014in urging the Environmental Protection Agency (EPA) to use its existing authorities to address the full lifecycle of plastic pollution.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>The Senators wrote to EPA Administrator Lee Zeldin, <strong>\u201cThe Make America Healthy Again (MAHA) Commission\u2019s May 2025 report included an article highlighting the concentration of microplastics found in Americans\u2019 brain tissue increased by 50% between 2016-2024 in addition to other studies that found exposure to chemicals in plastics, including endocrine-disruptors, may be causing a series of health issues for the American public. As you develop the EPA\u2019s MAHA strategy, we strongly encourage you to consider further actions within EPA\u2019s statutory authorities to reduce human exposure to microplastics and nanoplastics (MNPs).\u201d<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p>The Senators\u2019 letter follows the <a href=\"https:\/\/apnews.com\/article\/epa-microplastics-pharmaceuticals-drinking-water-zeldin-kennedy-a90f9e00f29ad171b0154d4f7bc4baba\" target=\"_blank\" rel=\"noreferrer noopener\">EPA\u2019s announcement that it was looking to address microplastics in our environment<\/a>. At a hearing earlier this month reviewing the Fiscal Year 2027 budget request for the EPA, Merkley\u2014the lead Democrat on the Senate Appropriations subcommittee overseeing funding for the EPA\u2014<a href=\"https:\/\/youtu.be\/n8lAAA9mKjA\" target=\"_blank\" rel=\"noreferrer noopener\">questioned EPA Administrator Zeldin about his plans to address plastics-related health issues<\/a>.<\/p>\n\n\n\n<p>Merkley has been a longtime leader on Capitol Hill advocating for tackling the plastic pollution crisis across its entire life cycle. As former Chair of the Senate Environment and Public Works (EPW) subcommittee overseeing environmental justice, chemical safety, and waste management, he <a href=\"https:\/\/www.merkley.senate.gov\/es\/merkley-chairs-senate-hearing-examining-the-environmental-and-climate-damage-of-plastics\/\" target=\"_blank\" rel=\"noreferrer noopener\">held a first-of-its-kind series of hearings<\/a>\u00a0investigating plastic production and pollution. His hearings examined:\u00a0<a href=\"https:\/\/urldefense.com\/v3\/__https:\/www.merkley.senate.gov\/merkley-to-chair-hearing-examining-environmental-climate-damage-from-plastics\/__;!!Bg5easoyC-OII2vlEqY8mTBrtW-N4OJKAQ!KiQ_K8yvy9YDabxIKwrykP_cJ5Sxn4JyueBVWb4IE3aJlP9kI5lJqCI1j8nTrZSNRy0HXYYaMuXizQbFy_vCNgW9oYWzf1-eGDcQNpSJEAs$\" target=\"_blank\" rel=\"noreferrer noopener\">Da\u00f1os ambientales y clim\u00e1ticos causados por los pl\u00e1sticos.<\/a>,\u00a0<a href=\"https:\/\/urldefense.com\/v3\/__https:\/www.merkley.senate.gov\/news\/press-releases\/merkley-hearing-to-examine-impacts-of-plastic-on-environmental-justice-communities__;!!Bg5easoyC-OII2vlEqY8mTBrtW-N4OJKAQ!KiQ_K8yvy9YDabxIKwrykP_cJ5Sxn4JyueBVWb4IE3aJlP9kI5lJqCI1j8nTrZSNRy0HXYYaMuXizQbFy_vCNgW9oYWzf1-eGDcQeasyZGg$\" target=\"_blank\" rel=\"noreferrer noopener\">Impactos de los pl\u00e1sticos en las comunidades de justicia ambiental.<\/a>,\u00a0<a href=\"https:\/\/urldefense.com\/v3\/__https:\/www.merkley.senate.gov\/merkley-continues-plastics-hearings-by-focusing-on-expanding-refill-and-reuse-infrastructure\/__;!!Bg5easoyC-OII2vlEqY8mTBrtW-N4OJKAQ!KiQ_K8yvy9YDabxIKwrykP_cJ5Sxn4JyueBVWb4IE3aJlP9kI5lJqCI1j8nTrZSNRy0HXYYaMuXizQbFy_vCNgW9oYWzf1-eGDcQ2TwrxAI$\" target=\"_blank\" rel=\"noreferrer noopener\">sistemas de reutilizaci\u00f3n y recarga<\/a>,\u00a0<a href=\"https:\/\/urldefense.com\/v3\/__https:\/www.merkley.senate.gov\/merkley-to-chair-hearing-examining-beverage-container-waste\/__;!!Bg5easoyC-OII2vlEqY8mTBrtW-N4OJKAQ!KiQ_K8yvy9YDabxIKwrykP_cJ5Sxn4JyueBVWb4IE3aJlP9kI5lJqCI1j8nTrZSNRy0HXYYaMuXizQbFy_vCNgW9oYWzf1-eGDcQi5ImLhg$\" target=\"_blank\" rel=\"noreferrer noopener\">residuos de envases de bebidas<\/a>, y\u00a0<a href=\"https:\/\/urldefense.com\/v3\/__https:\/www.merkley.senate.gov\/merkley-continues-plastics-hearings-by-focusing-on-expanding-refill-and-reuse-infrastructure\/__;!!Bg5easoyC-OII2vlEqY8mTBrtW-N4OJKAQ!KiQ_K8yvy9YDabxIKwrykP_cJ5Sxn4JyueBVWb4IE3aJlP9kI5lJqCI1j8nTrZSNRy0HXYYaMuXizQbFy_vCNgW9oYWzf1-eGDcQ2TwrxAI$\" target=\"_blank\" rel=\"noreferrer noopener\">Desaf\u00edos del consumidor para el reciclaje.<\/a>.\u00a0<\/p>\n\n\n\n<p>Merkley also leads the&nbsp;<a href=\"https:\/\/www.merkley.senate.gov\/es\/merkley-huffman-introduce-bold-legislation-to-take-on-the-growing-plastic-pollution-crisis\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Ley para liberarse de la contaminaci\u00f3n pl\u00e1stica<\/em><\/a>\u2014the most comprehensive plan ever introduced in Congress to address the&nbsp;harms of plastic pollution on our air, water, and soil\u2014and two bipartisan plastics-related pieces of legislation: the&nbsp;<a href=\"https:\/\/www.merkley.senate.gov\/es\/merkley-bynum-scott-steube-highlight-dangers-of-microplastics-with-new-bipartisan-bill\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Microplastics Safety Act<\/em><\/a>&nbsp;y&nbsp;<a href=\"https:\/\/www.merkley.senate.gov\/es\/merkley-capito-push-to-improve-recycling-nationwide-with-new-bipartisan-bill\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em>REUSE Act<\/em><\/a>.<\/p>\n\n\n\n<p>Full text of the letter can be found by clicking\u00a0<a href=\"https:\/\/www.merkley.senate.gov\/wp-content\/uploads\/FNL-EPA-Plastic-Authorities-5-21-2026-Letter.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">aqu\u00ed<\/a>\u00a0y sigue a continuaci\u00f3n:<\/p>\n\n\n\n<p>Dear Administrator Zeldin,<\/p>\n\n\n\n<p>On April 1, 2026, the Environmental Protection Agency (EPA) took a positive first step to begin the process of considering the addition of microplastics to its sixth Contaminant Candidate List (CCL). We are encouraged by this action and urge EPA to robustly evaluate microplastics in its consideration of any new regulations under the Safe Drinking Water Act (SDWA). However, in order to best address the human health concerns of microplastics, we encourage EPA to use its existing authorities to address the full lifecycle of plastic pollution. With compounding health concerns around microplastics in our environment, now is the time for your agency to make meaningful changes to protect American citizens.<\/p>\n\n\n\n<p>The Make America Healthy Again (MAHA) Commission\u2019s May 2025 report included an article highlighting the concentration of microplastics found in Americans\u2019 brain tissue increased by 50% between 2016-2024 in addition to other studies that found exposure to chemicals in plastics, including endocrine-disruptors, may be causing a series of health issues for the American public<a><\/a>. As you develop the EPA\u2019s MAHA strategy, we strongly encourage you to consider further actions within EPA\u2019s statutory authorities to reduce human exposure to microplastics and nanoplastics (MNPs). EPA has been tasked with protecting human and environmental health, and has the authority to take the below actions:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Add micro- and nanoplastics (MNPs) to the Unregulated Contaminant Monitoring Rule (UCMR) to require public water systems to collect data on microplastics, as called for by seven governors to date.<\/li>\n\n\n\n<li>Require an independent scientific body within EPA to understand and establish a baseline of the unique public health and environmental impacts of environmental contaminants, including MNPs;<\/li>\n\n\n\n<li>Review permits for existing or proposed expansions of petrochemical facilities for harmful emissions or discharges from the production of plastics under relevant regulatory frameworks including the Clean Air Act and Clean Water Act. We further encourage EPA to increase its enforcement actions for petrochemical facilities that are not currently complying with the law;<\/li>\n\n\n\n<li>Prioritize reducing the public health harms of MNPs by prioritizing harmful additives or ingredients in plastic materials for review under the Toxic Substances Control Act;<\/li>\n\n\n\n<li>To the extent existing waste management grant programs are funded, EPA should support the robust implementation of programs authorized under the bipartisan Save Our Seas 2.0 Act and Infrastructure Investment and Jobs Act to local governments and public water systems to support post-consumer waste management by removing plastic waste from drinking water, wastewater, surface water, and land. In addition to mechanical recycling as a solution for post-consumer waste management EPA should prioritize grant awards and program implementation that emphasizes the waste hierarchy, including by prioritizing solutions that reduce plastic like reuse or refill;<\/li>\n\n\n\n<li>Uphold and enforce responsibilities under the Clean Water Act to prevent plastic discharge into our nation\u2019s waterways, including nurdles and expand the use of Clean Water Act authorities to establish conditions related to plastics for the National Pollutant Discharge Elimination System permits, require states to perform plastic assessments to understand where listings make the most sense for water impacted by plastic, develop Total Maximum Daily Load levels for plastics, develop water quality criteria to inform surface water quality standards for plastic materials, establish drinking water standards for MNPs, establish effluent limitation guidelines for MNPs, establish pretreatment standards for wastewater, and publish guidance on the inclusion of plastic in state nonpoint source management plans;<\/li>\n\n\n\n<li>Utilize authorities under the Resource Conservation and Recovery Act to support development, demonstration and deployment of technologies that mechanically capture plastic waste or prevent micro\/nanoplastics from entering our environment and subsequently, human bodies;<\/li>\n\n\n\n<li>Establish guidelines, test methods, and standards for the detection of additives and contaminants used to make plastic products such as pthalates, in our drinking water, wastewater, and surface water to ensure protection of human health;<\/li>\n\n\n\n<li>Continue working to increase public understanding of the impacts of plastic pollution on human health to identify locally appropriate solutions in coordination with interagency partners including the Department of Health and Human Services;<\/li>\n\n\n\n<li>Develop consistent and accessible maps of existing and proposed plastic production facilities and data on what hazardous air pollutants frontline communities may be exposed to;<\/li>\n\n\n\n<li>Build upon existing escaped trash risk maps to develop a Plastic Pollution Mapping Tool that utilizes existing modeling data, such as those that are collected under the National Emission Standards for Hazardous Air Pollutants, in a format that is easily accessible and digestible for community transparency;<\/li>\n\n\n\n<li>Withdraw the proposed rulemaking that would exempt pyrolysis combustion units from the federal waste incineration standards under Clean Air Act Section 129, which would only increase hazardous air pollution in communities nationwide and result in more plastic pollution;<\/li>\n\n\n\n<li>Work with interagency partners, including but not limited to the National Oceanic and Atmospheric Administration, to develop metrics and indicators to measure progress in reducing plastic, and therefore MNPs, in waterways and the ocean using a standardized approach for data comparison;<\/li>\n\n\n\n<li>Coordinate with interagency partners to support research, development, and implementation of technologies addressing important pathways through which MNPs are released into the environment, such as microfiber filtration on washing machines or technologies to filter MNPs out of our water systems; and<\/li>\n\n\n\n<li>Encourage voluntary commitments from the private sector to explore alternatives to single-use packaging.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p>We ask for a detailed statement from your office on the steps that your agency is taking on each of the above points, including an update on EPA\u2019s progression on developing a health-based definition of microplastics and whether the agency has finalized an analytical methodology to measure microplastics, by no later than June 3, 2026.<\/p>\n\n\n\n<p class=\"has-text-align-center\">###<\/p>","protected":false},"excerpt":{"rendered":"<p>Washington, D.C. \u2013 Oregon\u2019s U.S. Senator Jeff Merkley today led his Senate colleagues\u2014including Senators Sheldon Whitehouse (D-RI), Cory Booker (D-NJ), Alex Padilla (D-CA), Kirsten Gillibrand (D-NY), Richard Blumenthal (D-CT), Peter Welch (D-VT), and Ron Wyden (D-OR)\u2014in urging the Environmental Protection Agency (EPA) to use its existing authorities to address the full lifecycle of plastic pollution. [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":18846,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[24],"tags":[133],"class_list":["post-24748","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-press-releases","tag-plastic"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Merkley, Senators: EPA Must Address Microplastic Pollution to Protect Human Health - Merkley<\/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:\/\/www.merkley.senate.gov\/es\/merkley-senators-epa-must-address-microplastic-pollution-to-protect-human-health\/\" \/>\n<meta property=\"og:locale\" content=\"es_MX\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Merkley, Senators: EPA Must Address Microplastic Pollution to Protect Human Health - Merkley\" \/>\n<meta property=\"og:description\" content=\"Washington, D.C. \u2013 Oregon\u2019s U.S. Senator Jeff Merkley today led his Senate colleagues\u2014including Senators Sheldon Whitehouse (D-RI), Cory Booker (D-NJ), Alex Padilla (D-CA), Kirsten Gillibrand (D-NY), Richard Blumenthal (D-CT), Peter Welch (D-VT), and Ron Wyden (D-OR)\u2014in urging the Environmental Protection Agency (EPA) to use its existing authorities to address the full lifecycle of plastic pollution. 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