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Perfluorohexanoic Acid PFHxA

Perfluorinated Chemicals (PFAS)

Perfluorohexanoic Acid PFHxA

A short-chain perfluoroalkyl acid (PFAA) used in industrial applications and consumer products for its water and oil repellent properties. PFHxA is considered a replacement for longer-chain PFAS compounds but still raises environmental and health concerns due to persistence and bioaccumulation potential.

Tracked contaminantUpdated Aug 28, 2025
Health score-4.0
-5Very bad5

Water guidelines

Legal limit
Not specified
Health guideline
0.00056 ppm

Food and supplement guidelines

Legal limit
Not specified
Health guideline
Not specified

Risks

Bioaccumulation, persistence in the environment, endocrine disruption, potential developmental toxicity, carcinogenic concerns, immune system effects

Benefits

Effective water and oil repellent agent, used as a safer alternative to longer-chain PFAS compounds