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Table 2 Maternal PFASs concentrations (ng/mL) at 12–16 gestational weeks (N = 533) in Shanghai, China

From: Prenatal plasma concentrations of Perfluoroalkyl and polyfluoroalkyl substances and neuropsychological development in children at four years of age

PFAS LOD >LOD (N %) GM (GSD) Percentiles
5th 25th 50th 75th 95th
PFHxS 0.015 533 (100) 2.7 (1.6) 1.4 2.1 2.8 3.5 5.7
PFOS 0.02 533 (100) 10.8 (1.8) 4.5 7.6 10.8 15.8 25.2
PFOA 0.01 533 (100) 20.0 (1.6) 9.3 15.3 19.9 27.4 38.9
PFNA 0.02 533 (100) 1.8 (1.6) 0.8 1.3 1.8 2.5 3.9
PFDA 0.01 533 (100) 2.1 (1.9) 0.7 1.4 2.1 3.2 6.3
PFUdA 0.01 533 (100) 1.6 (1.9) 0.5 1.0 1.6 2.5 4.4
PFDoA 0.015 533 (100) 0.1 (2.9) LOD 0.1 0.1 0.2 0.4
PFTrDA 0.02 483 (90.6) 0.1 (2.9) LOD 0.1 0.1 0.2 0.4
  1. LOD Limit of detection, GM Geometric mean, GSD Geometric standard deviation