Table 1.
Classification of Per- and polyfluoroalkyl substances (PFAS).
| PFAS Group | PFAS Acronym | PFAS Name |
|---|---|---|
| Short-chain perfluoroalkyl carboxylic acids (PFCAs) (With less than seven carbons) |
PFHpA | Perfluoro-n-heptanoic acid |
| PFHxA | Undecafluorohexanoic acid | |
| PFPeA | Perfluorovaleric acid | |
| PFBA | Perfluorobutanoic acid | |
| Short-chain perfluoroalkyl sulfonic acids (PFSAs) (With less than five carbons) |
PFBS | Perfluorobutanesulfonic acid |
| PFPeS | Perfluoropentanesulfonic acid | |
| Long-chain perfluoroalkyl carboxylic acids (PFCAs) (With more than seven carbons) |
PFOA | Perfluorooctanoic acid |
| PFNA | Perfluorononan-1-oic acid | |
| PFDA | Nonadecafluorodecanoic acid | |
| PFUnDA | Henicosafluoroundecanoic acid | |
| PFDoDA | Tricosafluorododecanoic acid | |
| Long-chain perfluoroalkyl sulfonic acids (PFSAs) (With more than five carbons) |
PFOS | Perfluorooctane sulfonate |
| PFNS | Perfluorononanesulfonic acid | |
| PFDS | Perfluorodecanesulfonic acid |