220 2q3e FIGURE 4179 RADIOACTIVE FALLOUTIN THE 24-HOUR PERIOD BEGINNING 1230 G.C.T, MAY 28, 1954 mer activity tounst? © PRECIPITATION activity IN ovms6T? at 100 DAYS AFTER BURST ALL ACTIVITY 15 ASSIGNED TO BURST NOG ,MECTAR UNLESS OTHERWISE INDICATED BY BURST NUMBER IN PARENTHESES 40° 120 ~ =. cao. ~ pe wm eee ! bo