Scientists warn that "forever chemicals," or PFAS, have contaminated drinking water supplies across the U.S., posing health risks even at low levels.
Jamie Hailstone reports for Forbes.
In short:
- PFAS, used in many products, persist in the environment and contaminate water sources globally.
- The Environmental Working Group estimates over 130 million Americans are exposed to PFAS in drinking water.
- Experts advocate for stricter regulations and decentralized water treatment systems to address widespread contamination.
Key quote:
“PFAS can reduce your body's immune system response to vaccinations, and the body won't produce the necessary antibody response that is associated with higher levels of PFAS in your body.”
— Tasha Stoiber, senior scientist at the Environmental Working Group
Why this matters:
PFAS exposure has been linked to serious health effects, including immune and hormonal disruption. Contamination is widespread, and existing water treatment systems are insufficient, requiring systemic changes and more investment in water infrastructure.
Related EHN coverage: What will the EPA’s new regulations for “forever chemicals” in drinking water mean for Pennsylvania?














