repugnance, They point cut thas 719 :S the earth's ocean and that eventintt 0.2 to: 23: into the - my They note that the cca as compa:ed cto the land is rolevlvely nonradioactive, of igneous rocks, following: Natural radioactivity of the seas is 1/100 thas As a result of wee,ons tests they report the two days after Operation Castle was over in the spring of 1954 there was a million-fold increase in radioactivity on phe surface waters near Bikini; that after four months 1500 miles away it was three times the-normal amount and that at the area of surface water contamination square miles, 13 mnnths had sprcad cver a million and that at a distance of 3500 miles from Bikini the “artificial” radioactivity was 1/5 the natural. They concluded that to date there has probably been no damage to life in the sea except that at the test site proper, Tney call attention to concentration of radioactivity by plant forms in the sea and warn repeatedly against indiscriminate dumping of radioactive wastes into the sea, They discuss the “ e\ushing time" of the Black Sea 2500 years as compared with perhaps 100 or 200 years for the shalf-deeps of the Atlantic and Caribbean, They stress they need to know much more about the ocean depths and their movements, (The International Geophysical Year has a very large~scale study of the depths planned for 1957-58), This committee would apparently permit “controlied" sea Gispogal especially of short-livec racioactive materials, They recormend that "Industrial agence. .s formulate conventicus fer the safe dispcsal of atomic wastes at :2a, besed on existing bre slodce," wee eed This would czem te Lr 13 @1. process univer. wel Booher,

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