AI Data centers are driving new demand for PFAS.

The AI infrastructure boom is creating a new source of demand for PFAS, the highly persistent family of fluorinated chemicals already facing growing regulatory pressure over their environmental and health effects.

A new analysis by Swedish chemicals watchdog ChemSec found that most major PFAS producers are planning to expand capacity, with AI data centers and semiconductor manufacturing among the industries explicitly driving investment. Companies including Daikin, Arkema, Chemours and Solstice are positioning fluorinated materials for applications ranging from chip fabrication and cable insulation to thermal management and advanced server cooling.

One emerging application is two-phase immersion cooling. Servers are submerged in a low-boiling fluorinated fluid that absorbs heat, evaporates and then condenses back into liquid. The approach can sharply reduce water consumption compared with evaporative cooling, making it attractive for increasingly power-dense AI hardware. But some candidate fluids belong to the broad PFAS family, creating questions about leaks, disposal and long-term environmental accumulation.

PFAS are valued precisely because their carbon-fluorine bonds resist heat, water and corrosion. Those same properties mean many persist for extremely long periods once released. ChemSec’s analysis does not quantify how much additional PFAS production the AI boom will generate. Production volumes remain unusually opaque.

The pollution issue is broader than PFAS. Separately, about 5,000 gallons of diesel leaked from an Equinix data center in Secaucus, New Jersey, into Anderson Creek in September. State officials said the fuel was contained before reaching the Hackensack River, while cleanup and an investigation continued. The diesel incident is unrelated to PFAS, but illustrates how the physical footprint of rapidly expanding computing infrastructure creates environmental risks beyond electricity and water consumption.