1. Surface Structure and Reactivity of Iron Oxide-Water Interfaces. 2. Anion Sorption Topology on Hematite: Comparison of Arsenate and Silicate. 3. Molecular Structure of Lead(II) Coprecipitated with Iron(III) Oxyhydroxide. 4. Tracking the Interaction of Transition Metal Ions with Environmental Interfaces using Second Harmonic Generation. 5. Prions, Metals and Soils. 6. Associations between Iron Oxyhydroxide Nanoparticle Growth and Metal Adsorption/Structural Incorporation. 7. Temperature and Aging Effects on the Surface Speciation of Cd(II) at the Goethite-Water Interface. 8. Cadmium and Lead Desorption from Kaolinite. 9. Mechanism of Molybdenum Adsorption on Soils Minerals Evaluated using vibrational spectroscopy and surface complexation modeling. 10. Blind Prediction and Parameter Uncertainty - A Sorption Test Case. 11. Biogeochemical Uranium Redox Transformations: Potential Oxidants of Uraninite. 12. Phosphate Interactions with Iron (Hydr)oxdes: Mineralization Pathways and Phosphorus Retention upon Bioreduction. 13. Influence of Phosphate on Adsorption and Surface Precipitation of Lead on Iron Oxide Surfaces. 14. Uranium(VI) Release from Contaminated Vadose Zone Sediments: Estimation of Potential Contributions from Dissolution and Desorption. 15. Arsenic Speciation in Solid Phases of Geothermal Fields. 16. Reactive Transport and Residence Times in Unsaturated Fractured Rocks from Field-Scale Experiments.