Per- and Poly-fluoroalkyl Substances (PFAS) (Chemicals and Contaminants)

Abstract

mg/kg body weight/day) for PFOA. Insufficient scientific findings precluded the evaluation to specify a reference dose of PFHxS. The average daily intake in Japan was obtained from the Total Diet Study conducted in a limited number of regions during the fiscal years 2012-2014: PFOS (Lower Bound to Upper Bound (LB-UB)** 0.60-1.1 ng/kg body weight/day, and PFOA (LB-UB) 0.066-0.75 ng/kg body weight/day. These values were lower than the TDIs. Due to the lack of sufficient data on PFAS concentrations and their distribution in various foods, it is necessary to be aware of these intake estimates carrying considerable uncertainty.

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