Public Health Implications from Multiple Exposures to I-131 in Fallout and Other Sources International Studies to Validate Exposure Assessment Models Estimating Present Day Health Risks from Past Exposure to Chemicals and Radionuclides Estimating Cancer Risk from Radiation Exposure Establishing Procedures for Comparing Risks from Chemicals and Radionuclides Quantifying the Uncertainty in Exposure, Dose, and Risk Approaches for Screening Contaminants and Exposure Pathways Effects of Radiation and Chemicals on Organisms Effects of Chemicals on Human Health Transport of Radionuclides and Chemicals Environmental Dosimetry (including dose to humans) Evaluation of Environmental Standards for Radionuclides Radioactive Waste Classification and Disposal Return to Projects of Special Importance