Table 4— RESULTS OF RADIOCHEMICAL ANALYSES OF FILTER-PACK COLLECTIONS MADE AT NRL Collection dates, Volume sample, m3 Filter Order February 15 to 21 3.72 x 10 IPC 1478 Type 5G Type 6 1 2 3 1963 4.34104 IPC 1478 Type 5G Type 6 1.30 x 108 IPC 1478 Type 5G Type 6 aly WIC MCe 47pm 20 Pb 16.3 75.0 8.7 18.7 74.2 7.1 21.3 71.9 6.8 14,3 77.3 8.4 29.4 64.6 6.0 22.0 71.2 6.8 9.28 x 104 3.65 « 107 1.02 « 108 5.25 103 8.78x 104 13.1 74,2 12.7 13.3 75.2 11.5 13.9 74.1 12.0 10.3 80.7 9.0 17.3 70.5 12.2 8.63 x 104 1.08 10 1.19 108 1.56= 104 23.2 64.1 12.7 23.9 63.7 12.4 23.6 64.8 11.6 20.7 69.2 10.1 7.42108 2.13 x 104 9.85 104 10.2 73.5 16.3 14.0 72,4 13.6 12.4 75.3 12.3 2.90 x 104 8.62108 1 2 3 21.6 68.2 10.2 _ 1 2 3 1 2 3 1 2 3 Total activity, dis/min,* and average ratios August 10 to 17 4.34 x10! [PC 1478 Type 5G Type 6 1 2 3 Total activity, dis/min,* and average ratios August 17 to September 6 1.24x105 IPC 1478 Type 5G Type 6 Total activity, dis/min,* and average ratios September 6to 13 4.34x 104 ~=IPC 1478 Type 5G Type 6 Total activity, dis/min,* and average ratios October 24 to November 8 9.30104 IPC 1478 Type 5G Type 6 Total activity, dis/min,* and average ratios _. %Sr Total activity, dis/min,* and average ratios July 19 to August 9 Selected activity ratios B9Sr Total activity, dis/min,* and average ratios May 3 to 10 1 | oo. ' . ee ee _Activitydistributiononfilters, 4 1 2 3 _ a. 9c, §8sr Mice BiCcg Wsr My 10.9 74.4 14.7 22.1 25.7 31.2 0.70 37.7 0,95 20.9 1.16 20.5 1.10 1.50 1.71 1.49« 104 8.1710? 25.4 0.91 24.0 1.44 17.0 72.2 10.8 14,8 67.2 18.0 7.8 7.9 8.9 0.68 25.8 0.73 18.7 0.77 21.3 1,11 1,55 1.14 2.16* 105 3.27«x 104 1.10107 8, 0.73 20.0 1.45 22.0 66.8 11.2 22.0 67.7 10.3 24.7 62.2 13.1 3.4 3.5 3.6 0.74 19.6 0.75 22.3 0,83 19.2 1.25 1,57 1,18 3.08« 104 4.52 108 1.09% 108 7.93% 10% 3.5 0.75 21.3 1.45 15.1 77.2 7.7 16.5 69.7 13.8 11.6 10.9 69.0 ° 20.1 2.4 3.4 4.1 0.61 0.72 0.98 19.3 15.8 16.8 1.31 1.30 0.69 3.92x 104 1.05 «104 1.42 «108 3.296= 108 7.07= 10?) 3.4 6.74 16.4 1.22 21.6 69.6 8.8 21.9 68.6 9.5 34.0 58.4 7.6 23.8 59.4 16.8 23.6 64.7 11.7 18,7 65.9 15.4 2.2 2.1 2.5 0.64 18.4 0,65 14,3 0,70 31,9 1.22 0.65 0.67 3.07 x 104 1.41 x 104 4.71 x 104 1.09 x 104 2.36 « 108 4.95 x 104 1.97 x 103 2.2 0.65 16.7 0.77 14.3 76.5 9.2 17.5 73.4 9.1 15.3 75.4 9.3 16.7 72.5 10.8 16.3 74.9 8.8 15.2 75.7 9.1 14.2 67.7 18.1 2.0 2.6 2.5 0.75 0,81 0.79 17.2 18.8 17.6 1.02 1.06 1.26 9.23 x 103 3.76 x 108 4.16 x 104 1.68 104 1.2710? 2.5 0.80 18.4 1.07 14.0 77.1 8.9 24.1 68.2 7.7 23.4 70.0 6.6 22.0 70.7 7.3 23.7 68.8 7.5 23.0 69.2 7.8 16.5 64.1 22.4 0.8 1.6 1.7 0.52 15.4 0.95 15.8 1.16 15.2 1.49 1.69 1.55 6.16 x 10 4.293x 10% 7.14103 6.90 108 6.62 104 2.00x 104 1.97 x108 1.5 0.86 15.7 1.63 *Activity corrected for decay to midpoint of collection period. 4.03 x 103 6.92104 MSS