Kalle L Jahn
Kalle Jahn is a Physical Scientist with the New York Water Science Center.
I investigate physical and chemical controls on subsurface water flow and solute transport, with the ultimate goal of supporting informed water resource management decisions. I use numerical modeling techniques to quantify water and solute fluxes and characterize bedrock/soil hydraulic and chemical properties. I am interested the fate of both legacy and emerging contaminants, particularly per- and polyfluoroalkyl substances (PFAS). Currently, I'm studying the groundwater systems of Long Island, NY, including the past and future evolution of the island's freshwater-saltwater interface and island-wide nitrogen transport from 1900-present.