TABLE OF CONTENTS 



Group Membership iii 



Foreword by Roger R. Revelle v 



Summary and Recommendations ix 



Purpose 1 



Scope 1 



Brief Description of a Nuclear Ship Reactor 



and Its Operation 2 



Design and Operation 2 



Definition of the Term "Wastes" 3 



Potential Sources of Radioactive Wastes 4 



Amount and Composition of Wastes 4 



Predicted Number of Nuclear -Powered Ships 7 



General Approach to the Problem 7 



Biological Significance of Various Parts of 



the Marine Environment 11 



General Considerations on Criteria of Acceptability 12 



Processes Determining the Concentration of Nuclides 



in the Marine Environment and in Sea Food 13 



Physical Effects 13 



Geochemical Effects 14 



Biological Effects 15 



Maximum Permissible Concentrations in Sea Food 15 



Special Considerations Related to Harbors, 

 Estuaries and Other Inshore Waters, and 



to the Continental Shelf 17 



Considerations Relative to the Open Sea 18 



Subdivisions of the Marine Environment 18 



Computation of ppc Values for Sea Food 19 



Restrictions on the Application of ppc Values in 



Sea Food and in the Marine Environment 20 



Partial Permissible Concentrations in the Environment 21 



Wastes from Nuclear -Powered Ships » 23 



Basis for Evaluating Safe Discharge Rates 27 



Evaluation of Harbors, Estuaries and Other Inshore 



Environments (Zone 1) 29 



The Diffusion Model Employed in This Analysis 31 



Evaluation of the Coastal Area (Zone 2) 39 



Evaluation of the Outer Continental Shelf (Zones 3a 



and 3b) 40 



Evaluation of the Open Sea (Zones 4a and 4b) 44 



Conservative and Non -Conservative Estimates Used in 



this Report 45 



Monitoring and Record Keeping 48 



References 51 



Vll 



