January 2017 Cockburn Sound Western Australia.

January 2017 Cockburn Sound (Western Australia)

Concentrations of PFAS, including PFOS and PFOA, were at or below the limits of reporting (between 0.005 micrograms per litre [μg/L] and 0.05 μg/L) at all the sites sampled by the
CSMC in Cockburn and Warnbro
Sounds.

https://www.der.wa.gov.au/images/documents/about/csmc/PFAS_Factsheet.pdf