575 



• radioactive materials aboard NS's that sank as a result of accidents (including nu- 

 clear reactors and NWH's); 



• radioactive materials aboard other objects that suffered accidents and fell into the 

 world's oceans (nuclear reactors on satellites, NWH's that fell into the sea from air- 

 craft accidents or failed launches), 



• radiation sources that accidentally fell into the ocean; 



• LRW that accidentally entered the sea from shore storage facilities as a result of 

 leaks; 



• products of underwater and surface nuclear explosions. 



Sufficient information is not available on a single one of the items listed above, so its collec- 

 tion is an urgent objective. Available data on all these sources of radioactive contamination of the 

 world's oceans are presented in Table 7. 



Table 7. Information on Radioactive Objects that Have Fallen 

 into the World's Oceans Through Accidents with Soviet Submarines 



• — Expert estimate (at lime of sinking) 



••—The world's oceans contain a total of 50 NWH's from various counuies (22). 



The total activity of all RW sources that have entered the world's oceans from USSR territo- 

 ry cannot be determined with sufficient accuracy at present due to the lack of confidence in the 

 inventory of each and every source of radioactive contamination of the ocean. Tentative data, 

 largely of an expert nature, are presented in Table 8. 



2.4. Radioactive Waste Disposal in the Seas of the Russian Federation 



The disposal of RW at sea, long practiced in the USSR, was continued in 1992 by the Navy 

 in far eastern and northern seas. Factual data obtained by the Commission on the matter are pre- 

 sented in Table 9. 



33 



