we 0.50 rrrrrrrrriry?yT iy PP rr tdi ee x O45 ~RONGELAP ADULT MALE EXCRETION RATE — 90Sr URINE ACTIVITY EXCRETION RATE, Bq d7! —~ RONGELAP POPULATION EXCRETION RATE 0.40 0.35 030 0.25 0.20 0.15 0.10 0.05 RONGELAP ADULT FEMALE bos 0 _ EXCRETION RATE Poppy » Sy pe ty {600 3200 4600 6400 8000 9600 DAYS POST RETURN TO RONGELAP Fig. 5 Mean Adult 905, Urine Activity Excretion Rate at Rongelap Atoll x \ 200 —