. Author manuscript; available in PMC: 2024 Oct 17.

Published in final edited form as: Environ Sci Technol. 2023 Oct 6;57(41):15348–15355. doi: 10.1021/acs.est.2c08241

Table 3.

Estimated Values for Half-Lives, Excretion Coefficients for Three Novel Fluoroethers, and the 95% Confidence Interval of Those Estimates^a

compound	half-life (days)	half-life 95%CI (days)	excretion coefficient (ng/mL/day)	excretion coefficient 95% CI (ng/mL/day)	effect of age on concentration (ng/mL/year)	effect of gender concentration (ng/mL) in males
PFO4DA	127	86,243	–0.00546^*	–0.00806, −0.00285	0.0129	0.376
Nafion byproduct 2	296	176,924	–0.00234^*	–0.00393, −0.000750	0.017^*	0.34^*
PFO5DoA	379	199,3870	–0.00183^*	–0.00348, −0.000179	0.0160^*	0.298

^a*

indicates significant values (p < 0.05).