2019 Lake Gwelup (Western Australia) approx location Site S08
April 2019: 8 PFAS chemicals detected. PFOS detected at 14.8 times the 99% ecological default guideline value.
October 2019: 7 PFAS chemicals detected. PFOS detected at 20 times the 99% ecological default guideline value.
For more information see: Perfluoroalkyl and polyfluoroalkyl substances (PFAS) in the Perth metropolitan area
Ambient concentrations in surface water and groundwater
November 2022
PFOS 99% ecological default guideline level 0.00023ug/L