PFAS persistence – Misryoum reports on the challenge of tracking new PFAS, finding them worldwide, and exploring filtration and sunlight solutions.
A global trail of “forever chemicals” keeps resurfacing, even as the chemicals themselves evolve.
Misryoum takes a close look at PFAS. a family of per- and polyfluoroalkyl substances used for decades to make everyday products resist water. stains. and grease.. Over time, PFAS have moved beyond factories and manufacturing sites, circulating through air, soil, and water and reaching people.. Research has also linked PFAS exposure to a range of health concerns. including effects on the immune system. child development. and certain cancers.
But efforts to reduce risk have not ended PFAS as a problem.. When concerns first emerged, many PFAS manufacturers and researchers began developing so-called “new” PFAS variants intended to replace older compounds.. The challenge. according to Misryoum. is that these newer versions can behave differently in the environment. making it harder for scientists to predict where they travel. how long they persist. and what they may mean for health.
This is where the science gets especially demanding: without clear expectations for how each variant moves and transforms, tracking them becomes a constant test of methods and assumptions.
Misryoum highlights how scientists are deploying that effort in remote and unexpected places.. PFAS have been detected across diverse environments, from deep ocean settings to high-altitude ice.. Researchers are also reporting PFAS in Antarctica’s interior. underscoring how pervasive contamination can be even in areas far from typical industrial sources.
Meanwhile, scientists are not only trying to find PFAS but also to understand how to neutralize or redirect their impact.. One line of work focuses on treatment approaches. including filtration and thermal processing. while other strategies explore the potential of sunlight-driven chemistry to break down PFAS-related compounds.. In parallel. Misryoum notes research that repurposes PFAS knowledge rather than only eliminating it. such as using certain PFAS-like chemicals to infer how recently groundwater has been recharged.
The broader significance is that PFAS research is shifting from reactive monitoring to proactive planning: improving ways to search for unknown chemical mixtures, studying them in more realistic settings, and testing solutions that can keep up with new materials entering the market.
As Misryoum frames it. the task now is not only to measure persistence. but to stay ahead of the cycle—discovering where PFAS appear. determining how they behave. and developing approaches that can eventually help reduce the “forever” quality that has made these chemicals such a lasting environmental concern.