Dung "Zoom" Nguyen

PFAS Leaching from AFFF-Impacted Source Areas  

Dung "Zoom" Nguyen, Chemical and Environmental Engineer, CDM Smith, Inc. 

This study couples bench-scale results from batch desorption experiments with laboratory measurement techniques for quantifying PFAS uptake at air-water interfaces to describe and predict PFAS porewater concentration measured using field-deployed lysimeters within an historically impacted AFFF source area. Overall findings show that rate-limited desorption from soils and sorption at air-water interfaces impact the mass discharge of PFAS to underlying groundwater in AFFF source areas, and that conventional methods for developing soil clean-up criteria for PFAS may be inappropriate.

Zoom Nguyen is a chemical and environmental engineer from the CDM Smith Bellevue, Washington office with 13 years of experience in bench-, pilot-, and full-scale design and implementation of in situ and ex situ soil and groundwater treatment systems. Zoom also serves as the manager of CDM Smith’s Research and Testing Laboratory where he leads design support treatability studies and innovative research and development work on fate and transport, and treatment of traditional and emerging contaminants including PFAS. He has served as the principal investigator or the co-principal investigator for a number of SERDP and ESTCP projects.