$ § PRECIPITATION CODE: HO PRECIPITATION T TRACE L LIGHT (0.01-0.10 wa) A MODERATE (0.11-1 00m) X@O, z00 6s M HEAVY (OVER 100 IM) H fe ah oe - hay v FIGURE A.20 RADIOACTIVE FALLOUT IN THE |” 24-HOUR PERIOO BEGINNING 1230 G.C.T, MARCH 9, 1954 Key ACTIVITY (puasr) © PRECIPITATION ZOO Activity mw o/mseT* at 100 OAYS AFTER BuAST ALL ACTIVITY 1B ASSIGNED TO BURST KO 4, ORAVO ke eo od x ~ e SerET UNLESS OTHERWISE INDICATED BY BURST NUMBER IN PARENTHESES