2-0 a str : wy Y e rot a Oy Q 4 re uns FIGURE A.77 RADIOACTIVE FALLOUT IN THE 24-HOUR PERIOD BEGINNING 12306.6.T, APRIL 7, 1954 ACTIVITY wt Ose/ET? AT 100 OAYS AFTER BURST S= T 190° 38% ASGIENED TO BURST ND.1 ARO MERWE INDICATED BY GUAST NUMBER iro TS acrivery (mumety PRECIMTATION