Prediction of migration of PFOS in soil and groundwater in regional NSW

Research output: Other contribution to conferenceAbstract


Per- and polyfluoroalkyl substances (PFAS) have polluted both soil and groundwater since 1950. These chemicals are toxic, resist biodegradation, transfer in the environment easily, and accumulate in the body of flora and
fauna. The prediction of their transport in the environment is of paramount importance for environmental managers to decide on the remediation strategies. In this study, the results of transport modeling of PFOS (perfluorooctanesulfonate, one of the dominant PFAS) in a contaminated site in regional NSW are presented. For instance, professional software (Geostudio) encompassing major functions of the contaminant transport was used to predict the level of PFOS in soil and groundwater due to climate interaction for 100 years. The initial physico-chemical parameters and adsorption characteristics of the soil were determined from in-situ tests and laboratory mechanical and chemical analysis. The model showed that with the current situation with no remediation action, the level of PFOS in the groundwater postulates the guideline value for drinking water after 25 years, with a constant increase in its level up to 100 years. The results of the modeling are in good agreement with the data from monitoring well in proximity to the contaminated sit. It should be mentioned that the site is categorised as industrial/commercial land use and the use of groundwater for drinking purposes is highly unlikely.
Original languageEnglish
Number of pages1
Publication statusPublished - 26 Nov 2020
EventResearch for a Changing World: ILWS Online Conference 2020 - Online
Duration: 26 Nov 202027 Nov 2020 (program and abstracts)


ConferenceResearch for a Changing World
OtherThe Institute’s first-ever on-line conference has been hailed as a “resounding success.” The free conference, which was held November 26 and 27, 2020, was an opportunity for members to share the results and conclusions from recent projects
and activities and to showcase the work of our strong research teams.

The presentations represented all categories of Institute membership – Full Member, Associate Member, Adjunct and Student. There were also two presentations by undergraduate students associated with the Institute.

The Conference is free and open to everyone.

The program reflects the multi and trans-disciplinary research ethos of ILWS.
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Grant Number

  • RM102988


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