50: a c= SE 0= oe 5 e 30.01 eh, - S 0.005 . fo Evacuation. eS, , Zw SS OY | Vp eP 25 “y We aw 10: : Lo . < se 000! Su; @. 00008 3& poe 25 | _ a= =e “ . \ . : ta =z oo wih oe 4 . => wW z rs ASLAND) \ 70.000! | QJ ! | & <x \ 70.00005 Be lo 100 HOURS POST DETONATION ON MARCH |, 1954 Figure 10. Exposure-rate histo- ries for Rongelap, Sifo, and Utirik Islands based on Bikini ash characteristics. INTEGRATED EXPOSURE i T T i Tr TT 'g = 350 v rs 4 #300 “ oo774 5 RONGELAP g< 250+ a La > éa ¢€ s00b s 0.0516 ¥ 3 3 Lad x 150r uJ 2 2 §100 0. 0288 9 8 50UTIRIK Leer I i 10 20 30 40 50 HOURS POST OETONATION Figure 11. i 60 70 Integrated exposure vs time. ~ 40 -