Per- and polyfluoroalkyl substances (PFAS) — the so-called 'forever chemicals' — are now recognized as a global environmental and public-health concern, yet their transport, adsorption, and desorption behavior in soil systems remains insufficiently characterized for reliable site assessment and remediation design. This project combines column-experiment data acquisition with reactive-transport modeling to quantify PFAS migration and partitioning across representative soil compositions, water-saturation conditions, and organic-matter contents. The work leverages porous-media transport methods used in the doctoral PEMWE research and applies them — across disciplines, in line with the spirit of K²-SPRING — to environmental remediation, with the aim of supporting evidence-based PFAS management in Japan.

Per- and polyfluoroalkyl substances (PFAS) — the so-called 'forever chemicals' — are now recognized as a global environmental and public-health concern, yet their transport, adsorption, and desorption behavior in soil systems remains insufficiently characterized for reliable site assessment and remediation design. This project combines column-experiment data acquisition with reactive-transport modeling to quantify PFAS migration and partitioning across representative soil compositions, water-saturation conditions, and organic-matter contents. The work leverages porous-media transport methods used in the doctoral PEMWE research and applies them — across disciplines, in line with the spirit of K²-SPRING — to environmental remediation, with the aim of supporting evidence-based PFAS management in Japan.