How do microplastics and pharmaceutical medicines have an effect on the security of the nation’s faucet water? It’s a query the US Environmental Protection Agency says it should attempt to reply for the primary time.
Officials are calling it a “major win” for the “Make America Healthy Again,” or MAHA, motion championed by US Health and Human Services Secretary Robert F. Kennedy Jr. Yet it might take years for any regulations to take impact – in the event that they’re proposed in any respect.
“With this effort, the Trump EPA is advancing gold standard science to inform policy and ensure the best possible outcomes so parents can feel confident filling their children’s glasses at the kitchen sink,” EPA Administrator Lee Zeldin stated at a information briefing Thursday.
Kennedy additionally introduced a $144 million effort to higher measure, perceive and take away microplastics that may be in human blood, tissues and organs.
The company has added microplastics and pharmaceutical medicines to the drinking water Contaminant Candidate List, or CCL, a listing of potential contaminants in public water techniques that aren’t at present regulated. As a part of the Safe Drinking Water Act, the EPA should replace the CCL with any rising public well being threats each 5 years.
The new CCL draft contains 4 contaminant teams: microplastics, prescribed drugs, per- and polyfluoroalkyl substances (PFAS), and byproducts created by disinfectants. Another 75 chemical substances and 9 microbes discovered in drinking water may also be investigated.
Placing a substance resembling prescribed drugs on the CCL, nevertheless, doesn’t imply the federal government or public water techniques need to take instant motion. The EPA has 5 years to resolve whether or not to control a minimum of 5 contaminants from the record. If it does transfer ahead, that’s one other lengthy regulatory course of that, on event, has taken greater than 20 years.
The proposed motion seems to be a step in the proper route, stated pediatrician and biology professor Dr. Philip Landrigan, director of the Program for Global Public Health and the Common Good and the Global Observatory on Planetary Health at Boston College, in an e mail.
“But given recent rollbacks of health-protective standards limiting levels of toxic pollutants in air and water, let’s see if it actually translates into regulatory action,” stated Landrigan, lead writer of a 2023 report that discovered plastics are related to harms to human well being at each stage of the plastic life cycle.
In its 2026 budget request, the Trump administration proposed reducing funding for state and native public water techniques by 90%, “reducing federal support from $2.8 billion to just $305 million,” stated Jessica Hernandez, legislative director for the Environmental Working Group, a well being and environmental advocacy group.
Congress rejected the proposal. Still, Thursday’s announcement looks like a “classic bait and switch,” Hernandez stated.
“The bottom line is that the EPA must review a list of contaminants every five years, but it does not actually have to regulate them,” she stated. “The administration has tried to cut established, effective programs only to announce new initiatives that lack funding or enforcement teeth.”
Each of the 4 areas that can be added to the CCL has its personal set of challenges, specialists say.
Microplastics are fragments that may vary from lower than 0.2 inch (5 millimeters) — in regards to the dimension of a pencil eraser — to 1/25,000th of an inch (1 micrometer). Anything smaller than 1 micrometer is a nanoplastic that should be measured in billionths of a meter.
A 2024 research discovered microplastics in 83% of tap water examined all over the world. The focus in tap water, nevertheless, is dramatically decrease than in single-use bottled water.
One liter of water — the equal of two standard-size bottled waters purchased on the retailer — contained a mean of 240,000 plastic particles from seven varieties of plastics, of which 90% have been recognized as nanoplastics, based on one other 2024 study.
Researchers estimate that individuals who drink solely bottled sources may be ingesting an additional 90,000 microplastics yearly, in contrast with 4,000 microplastics for individuals who devour solely faucet water.
Scientists have detected micro- and nanoplastics in human testes and the penis, human blood, lung and liver tissues, urine and feces, breast milk and the placenta. A 2025 research discovered practically a spoon’s worth of microplastics in human mind tissue.
However, just one research has linked microplastics with direct hurt to human well being: People with microplastics or nanoplastics within the arteries of their necks were twice as likely to have a coronary heart assault or a stroke or die from any trigger over the subsequent three years than individuals who had none, a 2024 research discovered.
The combat towards microplastics is getting a significant financial increase outdoors the inclusion within the new CLL record.
A brand new plan Kennedy unveiled – known as STOMP, or Systematic Targeting of Microplastics – will contain constructing instruments that may see and quantify micro- and nanoplastics. At this time, specialists say, solely a handful of laboratories within the United States have a method to detect the infinitesimally tiny particles.
“We can’t treat what we cannot measure. We cannot regulate what we don’t understand,” Kennedy stated Thursday. “Together, we’re going to define the risk, build the tools and act on the evidence regarding microplastics.”
STOMP may also standardize strategies of mapping how the plastic shards transfer by way of the physique, finally creating methods of eradicating microplastics from human tissues that comprise them, Kennedy stated.
“We need the knowledge now to protect human health, because all of those actions from a public environmental health policy standpoint will take a long, long time to turn that corner,” Dr. Matthew Campen, a regents’ professor of pharmaceutical sciences on the University of New Mexico in Albuquerque, stated on the briefing.
“It could be 30, 40 years before we start to realize change that’s relevant.”
The American Chemistry Council, which represents the chemical manufacturing business, stated it helps science-driven monitoring of microplastics in drinking water and analysis to higher perceive potential well being impacts.
“People want clear answers on microplastics, and any drinking water monitoring program must address several existing hurdles, including developing clear definitions, ensuring adequate lab capacity, and standardizing sampling and testing methods to be used consistently across the country,” Kimberly Wise White, the group’s vp of regulatory and scientific affairs, stated in an e mail.
In addition, the council “continues to call on Congress to pass the Plastic Health Research Act, which would establish a coordinated federal agency approach to microplastics research and support sound science-based policymaking,” she stated.
The presence in drinking water of antidepressants, hormones, antibiotics and different medicines from human waste and improper disposal can be being prioritized as a bunch for the primary time, Zeldin stated.
The EPA has previously flagged the potential for important reproductive results in fish and different aquatic life at very low ranges of publicity. In addition, antibiotics in water add to the event of antibiotic-resistant bacteria, a significant world well being menace.
Although prescribed drugs have been present in rivers around the world, it’s not recognized whether or not the present low ranges of publicity can hurt human well being. Worry persists, nevertheless, in regards to the affect of long-term publicity and whether or not mixtures of varied medicine within the water would possibly enhance danger.
In addition to including phamaceuticals to the CCL, the EPA is releasing human well being benchmarks for practically 400 medicines, stated Colleen Flaherty, division director on the EPA’s Health & Ecological Criteria, Office of Water.
“The benchmarks were developed for any [US Food and Drug Administration] approved prescription and over-the-counter drugs that are known to or have the potential to occur in drinking water sources like reservoirs and rivers or treated drinking water,” Flaherty stated.
Manufactured because the Forties to make merchandise nonstick, stain-resistant and water-repellent, PFAS chemical substances have been linked to most cancers, weight problems, thyroid illness, excessive ldl cholesterol, decreased fertility, liver injury, hormone disruption and injury to the immune system, according to the EPA. Several of those chemical substances may cause hurt at ranges of a billionth of a gram.
There have been requires the EPA to control PFAS in drinking water for many years, but the first federal limits have been set by the Biden administration in April 2024. Water utilities have been required to filter out two of essentially the most studied chemical substances — perfluorooctanoic acid, or PFOA, and perfluorooctanesulfonic acid, or PFOS — in addition to PFNA, PFHxS and HFPO-DA, also called GenX.
However, the Trump administration rolled again a few of these protections in May 2025. Limits on ranges of PFHxS, PFNA, GenX and PFBS in drinking water have been scrapped. Restrictions on PFOA and PFOS have been stored, but the compliance deadline for corporations to conform was moved from 2029 to 2031.
Called DBPs for brief, disinfectant byproducts happen in water at public therapy vegetation when disinfectants resembling chlorine or ozone react with decomposing plant materials, human waste, pesticides and different matter already within the water.
The most typical byproducts from using chlorine as a disinfectant are trihalomethanes and haloacetic acids, which have been linked to cancer and other health problems. There are attainable but not but confirmed hyperlinks to developmental and reproductive points, the EPA web site says.
“Chlorinating tap water is critical to protect the public from disease-causing microorganisms,” the website says. “Drinking water is chlorinated to kill bacteria and viruses that cause serious illnesses and, in some cases, death. Chlorination of drinking water has benefited public health enormously by lowering the rates of infectious diseases (for example, typhoid, hepatitis and cholera).”