Perfluorohexane sulfonate (PFHxS) (0.5)
Perfluorooctane sulfonate (PFOS) (0.1)
Perfluorodecane sulfonate (PFDS) (0.15)
Perfluorooctanoate (PFOA) (0.02)
Perfluorononanoate (PFNA) (0.05)
Perfluorodecanoate (PFDA) (0.1)
Perfluoroundecanoate (PFUA) (0.1)
Perfluorododecanoate (PFDoA) (0.05)
Perfluorotetradecanoate (PFTA) (0.1)

Figures in brackets denote LOD expressed as ng/g serum.

Perfluorinated chemicals are man-made compounds mainly used in stain repellents, fire fighting foams, and as surfactants. They can also form from the biodegradation of precursors.

Perfluorinated compounds are released from various consumer products. Uptake through food is another potential exposure route.

In animal studies, PFOS has been shown to affect the immune system, and may also cause cancer and endocrine disruption. Studies relating to health effects on humans are limited.


Perfluorooctanesulfonic acid