Aquatic chemistry of actinides and fission products
o Solubility and dissolution
o Solid solution and secondary phase formation
o Complexation with inorganic and organic ligands
o Redox reactions and radiolysis effects
o Solid‐water interface reactions
o Colloid formation
o Experimental methods
o Computational chemistry
Migration behavior of radionuclides
o Sorption/desorption phenomena in dynamic systems
o Diffusion and other migration processes
o Colloid migration
o Effects of biological and organic materials
o Field and large scale experiments
o Natural analogues
Geochemical and transport modelling
o Data selection and evaluation
o Coupling chemistry and transport
o Development and application of models
o Model validation
o Safety assessment and repository concepts
Application to Case Studies
o Nuclear waste repositories, advanced reactor wastes, long term monitoring of legacy waste sites, and interfaces between sciences and regulation
o Evaluation and treatment of complex heterogenous subsurface contaminated environments
Special Topics
o United States Department of Energy Environmental Management, Legacy Management, and Nuclear Waste Disposition programs
o The intersection of nuclear security and radionuclide migration in natural and/or engineered systems
