What it is
Short-chain PFAS used as a replacement for PFOS. Found in stain repellents and firefighting foam. Subject to EPA hazard index limit in 2024.
Health effects
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Editorial in progress
A full health-effects review for this chemical is being researched and reviewed by our scientific advisors. In the meantime, see the studies and detection data below.
Detected in food
PFBS has been detected in 1 distinct foods in our database. Concentrations vary widely by food, study, and testing method. Highest values are not necessarily most representative — see the source study for each value before drawing conclusions.
| Food | Category | Samples | Detected | Max value | Mean |
|---|---|---|---|---|---|
| Kale | Produce | 2 | 0 | 34.00 ppt | — |
Studies that have tested for PFBS
- FDA Total Diet Study Dataset 12 — PFAS in 2024 U.S. Food Supply — U.S. Food and Drug Administration, Dec 1, 2024 · MDL: 29.0000 ppt
- FDA Total Diet Study Dataset 13 — PFAS in 2024 U.S. Food Supply — U.S. Food and Drug Administration, Dec 1, 2024 · MDL: 29.0000 ppt