EPA Study Investigates Abortion Pills in U.S. Drinking Water

The Environmental Protection Agency (EPA) has announced a new study to test for the presence of abortion-inducing drugs mifepristone and misoprostol in drinking water across the United States. This initiative is part of a broader effort to identify a wide range of pharmaceutical and chemical contaminants.

The study plans to select several metropolitan areas for sampling and will screen for approximately 1,400 different substances, including hormones like testosterone and progesterone, as well as contraceptives such as levonorgestrel. The EPA stated that this study will complement existing actions under the Safe Drinking Water Act.

Kristi Hamrick, head of policy at Students for Life of America, expressed support for the study, viewing it as a step toward greater awareness and potential restrictions on access to these medications. "It is exciting after a very long journey that’s been almost 10 years, to have this be taken seriously enough to be on an official list," Hamrick said.

The EPA will employ a non-targeted analysis approach, which can detect the presence of multiple substances simultaneously but does not quantify their exact levels. The agency has emphasized that this testing campaign is not part of the Safe Drinking Water Act's regulatory framework.

Environmental scientists, however, have raised doubts about the potential for abortion pills to contaminate water supplies or pose a risk to public health. Nathan Donley, an environmental health scientist at the Center for Biological Diversity, told The Hill, "There are no studies finding mifepristone in the water." He explained that such studies have not been conducted because the quantities used are small compared to other known water contaminants, and the drugs lack the chemical properties of typical water pollutants.

Medication abortion, which involves mifepristone and misoprostol, has become the most common form of abortion in the U.S. Its prominence has increased since the Supreme Court's 2022 decision to overturn Roe v. Wade, which eliminated the federal right to abortion and allowed states to regulate the procedure. Medication abortion pills can be accessed via mail, a process that has faced legal challenges and restrictions in several states with strict abortion laws, including Texas, Oklahoma, and North Dakota.

Mifepristone is typically taken first to block progesterone, a hormone essential for maintaining a pregnancy, and to dilate the cervix. Misoprostol is taken about 24 hours later to induce uterine contractions, leading to the expulsion of pregnancy tissue. The American College of Obstetricians and Gynecologists considers medication abortion safe for patients up to 10 weeks of gestation.