Table 12 BRAVO Fallout Beta Activity Related to BRAVO Fallour Exposure Rate Day 26 Post-Detonation Nuclide 89sr 90s> . 90y Ily 93z7r ISNb 103Ry Z of Bikini Ash Beta Activity 1.3 .013 .013 8.0 6.2 2.7 5.0 106p, 0.70 Te 0.35 IooRh 129mp6 13276 131; 132; 14054 1407, 14lce l44ce 144p, 143p, 147nNg 45ca 237y 239puy (a) 355 0.70 (uR h7l) Nuclide@ (mCi km“) Bikini Ash 3.3x1078 0.0x109 3.5x10711 §.0x107& 8.6x1074 3.9x1074 4.5x1074 0.0x109 2.7x10~ 3.6x107 0.95 1.0 4.5 1.0 5.0 6.0 8.4 1.7 1.7 16. 5.3x1076 3.8x1075 3.3x107¢ 4.2x1074 1.4x1074 2.3x1073 1.0x1074 4.7x1076 9.0x1076 —-2.7x10711 0.20 1.8x10712 9.0 20. 0.0004 0.050 (mCi km72) Nuclideb (uR h-+) Bikini Ash 2.3x1074 4.6xi074 5.4x10710 0.0x100 2.2x106 ~ 2.2x1072 -2.2x1072 1.4x101 1.1x10! 4.7x109 8 .6x109 1.2x109 1.2x100 6.0x10— 1.6x109 1.7x109 7.8x109 1.7x100 8.6x109 1.0x10! 1.4x102 2.9x100 2.9x100 2.8x10! 1.6x10! 3.5x107! 3.5x101 6.9x1074 8.6x1072 8Mulciply by 1.94 x 10715 to obtain Cc kg ts71Bq7? m. Divide by 1.94 x 10715 to obtain Bq n cui kg s. ii. Areal Activity at Fallout Cessation. Using the above estimate of the mean unweathered exposure rate on day 26, we estimated the mean unweathered activity per unit area to be 1.0 x 10% Bq m2 (2.4 x 102 mCi km72). We made this estimate by multiplying 47 mR ae by 1000 and then multiplying this product by the activity per unit area per unit Bikini ash exposure rate (see Table 12, column 4). Cd - 31 por me wea Lb aw at -