In Virginia's Loudoun County, data centers use PFAS — forever chemicals — in cooling systems. Refrigerant gases escape with global warming potential thousands of times higher than CO2, and immersion fluids leach into water sources. The AI boom also drives PFAS-heavy semiconductor manufacturing, with over 1,000 applications in the chip supply chain. Alternatives exist but require corporate investment.
Data Centers Have a PFAS Problem
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Author:
Tom Cassauwers
Organization:
Sierra Club
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Published date:
May 5, 2026
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