23. 

 man via these two mechanisms, we have examined the following pro- 

 cesses and where possible made quantitative estimates of the contribu- 

 tion of each to the mechanisms noted above, 



1. Diffusion processes . An attempt has been made to describe 

 the distribution of the waste throughout the environment by turbulent 

 diffusion processes, under assumed conditions of depth, current 

 velocity, container characteristics, etc. , that appear to be applicable 

 to actual disposal conditions. In the solution of these problems, given 

 in detail by R. O. Reid in Appendix IV, certain simplifying assump- 

 tions have been made. In all cases the simplifications tend to produce 

 a conservative result. That is, the predicted concentration of activity 

 will always be greater than the concentrations that will be found under 

 actual conditions. 



2. Transport by permanent or semi -permanent circulation 

 features. 



The circulation along the Atlantic coast is described by B. H. Ketchum 



and D. F. Bumpus in Appendix V. Special attention was given to 



features that would carry wastes to the coast line, thereby increasing 



the chances of creating a hazard in man' s uses of the immediate shore, 



and to features that might carry the waste into areas of known fishing 



potential, thereby increasing the chances of creating a hazard in man' s 



uses of marine food resources. 



