en cs'3? CURIES/CUBIC METER 1o7!4* ee ee ae e ee ee ee ee e ee ee ee e eee ee r : — - p “ P 107!5 ae | = — a C _ C a Hardtock 197! | a P ae )©6C \ SOVIET October fry. \ -=<-==--— High Altitude L i &f o” / , ue _ 7 4 J 4 i bo é f a ' f — _ / Lit ttLtityyypyuyyry yr fyy perry y MAMJJASONO JFMAMJJASOND JFMAMJJ 1958 1959 1960 7 Fig. 9 -- Partition of cs? in surface air into Hardtack, Soviet October, and high altitude components 125