Researchers have identified 42 per- and polyfluoroalkyl substances (PFAS), often referred to as “forever chemicals,” in umbilical cord blood, a significantly broader range than previously detected through standard testing methods. The findings, released this week, indicate that prenatal exposure to these chemicals is more widespread than once understood.
The study employed a non-targeted analytical approach, allowing scientists to identify a wider spectrum of PFAS compounds present in cord blood samples. Traditional testing methods typically focus on a smaller, predetermined set of PFAS chemicals. This fresh methodology revealed dozens of additional substances, raising concerns about the potential health impacts of this broader exposure.
The research builds on previous work examining PFAS levels in cord blood, with samples analyzed from births between 2003 and 2006. Mount Sinai researchers are now investigating whether higher overall PFAS exposure early in life correlates with adverse health outcomes as children develop. The team is also focused on understanding the specific health effects of the newly identified and less-studied PFAS compounds.
PFAS are a group of man-made chemicals used in a wide variety of consumer and industrial products, including non-stick cookware, firefighting foam and food packaging. They are known for their persistence in the environment and the human body, leading to their designation as “forever chemicals.” Exposure to PFAS has been linked to a range of health problems, including immune deficiencies, increased cholesterol levels, and certain types of cancer.
The study’s findings come as regulatory agencies are increasingly focused on addressing PFAS contamination. Researchers are also working to refine the tools used to assess PFAS exposure and prevent related diseases. Further research is planned to determine the sources of these chemicals and to evaluate the effectiveness of potential interventions.
