[B-BG01] Earth and Planetary Science Frontiers for Life and Global Environment

[BBG01-P06] Fate and Transport of PFAS in Variably Saturated Soil Column

*Shazia Shifa¹, jahangeer Jahangeer¹, Sirajuddin Ahmed¹, Neha Sami¹ (1.JAMIA MILLIA ISLAMIA NEW DELHI INDIA )

Keywords:PFAs, Simulation experiment , Groundwater , Sub surface

Per- and polyfluoroalkyl substances are heterogenous group of
organic pollutants, their distribution in various media is the extent of
their migration based on different physical as well as chemical
characteristics. Latest research has revealed the preferential
accumulation of PFAS in vadose zone, due to agricultural
applications, and industrial effluent. As surfactants, PFAS tend to
accumulate at air-water interfaces and may present in the vadose
zone for long period before reaching to the groundwater. The
retention in the subsurface has critical implications for risk
management and remediation strategies for protecting the
underground aquifer. In this study, we performed simulation
experiment for PFAS in variably saturated soil column under varying
application of pfas and moisture flow. Our results suggest that
moisture flow have great impact on the transport and retention of
pfas in subsurface. Furthermore, we identify key transport
parameters for PFAS and future research needs. Consequently, this
research may help in the risk assessment and management of PFAS-
contaminated sites.