Perfluorobutanesulfonic acid

PFBS, Nonafluoro-1-butanesulfonic acid; formula: C4HF9O3S; CAS Registry Number: 375-73-5

Fluorocarbon with 4 C-atoms and one sulfonic acid group; substitute for PFOS in many applications

Specimen

Sampling area

Sampling period

1982 - 2022