Harry Simpson Jr.
Locations: United States of America
The central aim of our project is to improve understanding of processes that control As transport in aqueous systems. We selected two representative superfund sites characterized by a wide range of redox conditions so that our results would be relevant for a number of sites with elevated As concentrations. We will employ environmental tracer methods, which have proved to be very sensitive in hydrologic investigations of recent recharge dynamics, to groundwater systems, which are under active remediation. We will incorporate measurements of redox sensitive species with those of chemically inert environmental tracer concentrations. Central to all our work will be an attempt to better delineate and quantify the influence of large redox gradients on the behavior of As in the subsurface. Finally, our aim is to integrate research methods and sampling design with field programs in Bangladesh and laboratory programs with natural materials.
Cross Cutting Themes:
Project Web Site:
Univ. of Connecticut, Prof. Nikolaos Nikolaidis