T T T TT “TT t io 4 = “ bo “ ‘es oO a Zz 2 10! ma : x "4 4 a m= - 7 ve ™ QO 1. <q 2 = 2 ia co ke ! - 0 4 = as ud way z 5 7 — * 107 Fig. 4 i I Lo 1 L l io? DAYS POST RETURN = ae “ 7 : f v 1 1 4} 10% Mean Adult 905, Urine Activity Concentration History at Rongelap Atoll 7 12 Seem . - taal Peps oemde . ato. sweet “Bm lk. a te . -