Serum PFAS Calculator for Adults

Enter the following values, then click on the "submit" button:

1. Select the chemical you want to model:

2. Starting serum PFOS concentration (μg/L, ng/mL, or ppb)

3. PFOS concentration in drinking water (ng/L, or ppt)

4. Biological sex and menstrual status (optional):


Calculator Version 1.1 by Sherman Lu and Scott Bartell.
Citation: Lu S, Bartell SM. Serum PFAS Calculator for Adults, Version 1.1, 2019, www.ics.uci.edu/~sbartell/pfascalc.html.

Chemical Volume of Distribution (L/kg) Contribution from other sources (ng/ml) Average half-life (years)
PFOS 0.23 (Thompson et al., 2010) 5.20 (CDC 2019) 3.4 (Li et al. 2018)
PFOA 0.17 (Thompson et al., 2010) 1.67 (CDC 2019) 2.3 (Bartell et al. 2010)
PFHxS 0.23 (Zhang et al., 2013) 1.30 (CDC 2019) 5.3 (Li et al., 2018)
PFNA 0.17 (Zhang et al., 2013) 0.60 (CDC 2019) 3.9 (Zhang et al., 2013 weighted average)