Radioactive Hazard ReleaseChemical Hazard ReleaseCesium RadioisotopesRadioactive PollutantsRadiation MonitoringRadioactive FalloutNuclear Power PlantsFukushima Nuclear AccidentSoil Pollutants, RadioactiveRadioisotopesTritiumRadiation DosageAutoradiographyRadiation, IonizingIodine RadioisotopesRadiation InjuriesTime FactorsDose-Response Relationship, RadiationRadiation ToleranceProportional Hazards ModelsRadiationRadiation ProtectionMaterials TestingRadiation Oncology