PFAS, the class of synthetic chemicals now detectable in an estimated 99% of people worldwide, has already breached what scientists call a “planetary boundary.” That is the threshold beyond which environmental damage becomes effectively irreversible.
The AI industry is accelerating that problem.
The Hidden Chemistry Behind Every GPU Cluster
PFAS are not a byproduct of AI infrastructure; they are a core ingredient.
PFAS (per- and polyfluoroalkyl substances) earn their “forever chemicals” nickname honestly: an exceptionally strong carbon-fluorine bond means they do not break down in nature, accumulating instead in soil, water, wildlife, and human blood. Research has linked sustained exposure to cancer, liver disease, kidney problems, high cholesterol, and birth defects.
Demand for these chemicals is now tied directly to three pillars of the AI datacentre buildout: cooling, semiconductor fabrication, and lithium-ion battery materials. According to Danske Bank analysts, chip manufacturing alone involves PFAS at a staggering scale.
“In the world of microchips, these ‘forever chemicals’ are not merely peripheral additives; they are essential ingredients integrated into as many as 1,000 distinct steps at the nanometric level.” (Danske Bank analysts, via Ground News)
Datacentre cooling adds another layer. In two-phase immersion cooling, servers are submerged in a PFAS-based fluid that boils on contact with hot hardware and absorbs heat as vapor. The vapor then condenses back to liquid in a closed loop, which producers claim prevents chemicals from escaping into the environment.
Daikin, Arkema, and Chemours Are Already Building
Named producers are not waiting for regulatory clarity before expanding capacity.
Swedish watchdog ChemSec surveyed the world’s ten largest PFAS manufacturers and found nearly all have plans to grow production, with expansion sites across Europe, Asia, and North America. Each cites AI infrastructure as a primary market.
Daikin has launched what it calls a “datacentre hub.” Arkema is constructing a $60 million production unit in Kentucky, explicitly designed to meet datacentre cooling refrigerant demand. Chemours promotes its fluorinated immersion fluids as cutting cooling energy consumption by more than 90% and shrinking datacentre footprints by up to 60%.
The industry argument is straightforward: sealed, closed-loop systems do not release PFAS into the environment, and the efficiency gains justify the chemistry. That argument becomes harder to sustain in light of Chemours being ordered to pay $450 million to settle a lawsuit over PFAS discharges.
Out of the ten producers ChemSec surveyed, only BASF, committed to exiting PFAS production by 2028, and Archroma, pivoting to PFAS-free alternatives, are moving in the opposite direction. That is two companies out of ten, which reads less like a trend and more like an asterisk.
Efficiency Inside a Datacentre Does Not Neutralize Global Contamination
The math only works if you stop counting at the facility’s front door.
ChemSec’s core argument is blunt: chemicals that persist indefinitely and accumulate globally cannot be made safe by containing them in one building. Any increase in production adds to a burden that is already, by scientific consensus, beyond safe planetary limits.
Anne-Sofie Bäckar, ChemSec’s executive director, put it plainly in The Guardian: “These companies’ expansion plans show that unless governments and regulators insist on a rapid phaseout, we will face a new tidal wave of forever chemicals.”
ChemSec underlined the personal stakes by mailing finger-prick blood tests to the CEOs of European PFAS producers on its list, inviting them to measure their own PFAS levels. It is a pointed reminder that no job title offers immunity from the contamination these companies help create.
Regulators in the EU, UK, and parts of the US are working toward partial restrictions. ChemSec argues these moves are too narrow and too slow to counter a production surge explicitly tied to the pace of AI deployment.
Analysts have begun describing PFAS as “the hidden risk of the AI boom.” They flag potential multibillion-euro remediation and litigation liabilities for companies that treat current restrictions as the ceiling rather than the floor.
The question is not whether AI needs PFAS today; the research is clear that it does. The question is whether the industry builds a credible phase-out timeline into its roadmap now, or waits for regulators and class-action lawyers to set one later. Companies that dragged their feet on data-privacy compliance learned that the bill only grows with time. The pattern is consistent, and the chemicals will still be accumulating while the industry decides.
