ay Sr®? in Worldwide Fallout 160} Pure tropospheric = 130 for Sr89/Sr 90 _ Pure stratospheric = | to lO for Sr 897Sr 9° (HASL Data) ? 140 |: 4 . . Bogota, Columbia Activity Ratio (Sr99 — 5790) 120 }- Bieminghom, Alabama 33° NN oo Qo r { Lemont, [Il 41°N ~N Coral Gables, Florda, 25°N U:S.5S.R. Jo U.K. SHOTS TEST * Nagasaki, 35¢n Vermillion, Dakota 47° 60}Sait Lowe, 41°N Bangkok, Thailand 14° eh HARDTACK ~, Gahy, u H New York Culp” - Santrago Pr Hondivlu, Weather Station =, Firoshima, $$°N = og. “A\ : : | ; i Kenyo i : bBoqote Veenna, 48°Nw« Honctuly, AEC ; Klagenfurt, avstna” Magasak: “ ae ‘ Honotulu, AEC La Honolulu, x" 20 f- Honciutu, AEC — 20°N ae | Py Pretoria, 23°S~ . Ourbar, 30°S™ | Los Angeles, 34° i re Ox Kenya_ 3K Ourvan Sa/ fs qs _ EEN ry sh Ne Menya, 6 oti| I°N “yutY AUG.” SEPT. OCT. NOV. DEC. Sidney Melbourne Honolulu, w esther Sta, . S38 wer ole>__Ptumseos 4 — LTPrater APRIL Kenya y +aroshima on vienna Suhsbury xyne « JAN. Gone ws Ooreim Klagenturt ~- Ansbone > renee Austraha [Bogey FEB. 1957 MAR. APR. . MAY JUNE JULY AUG. SEPT. tt OCT. NOV. DEC. 1958 Figure 7 ot *,, as Bae | DOS AREHIVES«

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