TABLE 1 



Cesium- 137 levels in Pacific Ocean waters in the autumn of 1988. 



TABLE 2 



Mean cesium- 137 levels in seawater bv region. 



Region 



Mean level 

 Bq/m 



Bering Seal 50-60° N) 

 (from Medinets <■/ <//.. 1992 ) 



Pacific Ocean (10-40 N) 

 (from Nagaya& Nakamura, l e )S5i 



Equatorial Pacific (5 N- 1 0°S) 



South China Sea 



East China Sea 



Sea of Japan 



2.4 ±0.2 



5.2 ± 0.3 



3.610.3 

 5.0 ±0.2 



4 3 ± 0. 1 

 5.2 ± 0.3 



Fig. 1. Map of sampling locations to determine cesium- 137 levels (Bq/m 1 ) in 

 the surface layer (0-3 m). (^denotes results obtained in the present 

 study; denotes results reported by Nagaya & Nakamura. 1985) 



Comparison of the overall radiation picture in the Pacific 

 region with our findings on the contamination status of the 

 Black and Baltic Seas conducted from 1 986 to 1 OSS show s that 

 cesium- 137 concentrations in the Pacific arc. at present. 10 to 

 20 times lower than in the seas of the European region impacted 

 bv local resources. 



192 



