Three leading experts on per- and polyfluoroalkyl substances (PFAS) held a live session to answer public questions about the risks of "forever chemicals" [1].
These substances are a global public health concern because they persist in the environment and the human body, complicating efforts to eliminate exposure.
During the session hosted by ABC News Australia on Aug. 18, 2025, the specialists addressed what PFAS are and how people typically encounter them [1]. The discussion focused on the various exposure pathways, and the specific health risks associated with these compounds [1]. The experts also detailed the current status of phase-out efforts for certain chemicals and debated whether society can realistically function without them [1].
PFAS are characterized by their extreme stability, which prevents them from breaking down naturally. This persistence is why they are commonly referred to as forever chemicals. The experts said that while some compounds have been phased out, others remain in use across various industries [1].
Historical data indicates that the toxicity of these substances was known to some entities as early as the 1970s [2]. This timeline highlights a significant gap between the initial discovery of the risks and the broader public awareness and regulatory actions currently taking place.
The Q&A aimed to provide clarity on how the public can minimize their risk and what the long-term outlook is for environmental remediation [1]. By addressing common misconceptions, the experts said they sought to inform the public about the prevalence of these chemicals in everyday products and the environment [1].
“PFAS are characterized by their extreme stability, which prevents them from breaking down naturally.”
The gap between the 1970s discovery of PFAS toxicity and current public health initiatives suggests a systemic delay in regulatory response. As experts move toward defining a PFAS-free future, the challenge lies in balancing industrial utility with the necessity of removing persistent toxins from the global water and food supplies.
