=9= 



indicate the isotopes which have been sold and i some of) which will end 

 up as wastes. It does indicate an upper limit to the amount of waste 

 which can be expected to be disposed for the period indicated no matter 

 what the fashion; eogoj, if one estimated, conservatively, that 10^ of 

 these isotopes would end up as wastes to be disposed of in the sea, the total 

 niunber of curies would be relatively small. The sealed sources remain 

 sealed, so their effect would be one of external radiation, principally 

 gamma. Most of the isotopes listed have relatively short half lives so 

 much of the activity would be decayed by the time it reached the sea. 



