Table A-7, Americium-241 radionuclide concentration summary for all soil profiles takenfn area during the 1978 NMIRStogether with our recent trips from 1986 through 1993 on Ro Soil depth (em) SD Mean of logs SD of logs 23x102 36x102 22102 1610-2 55x103 24x102 35x102 21102 2310-2 112x102 -42x100 -38x10 42100 -49x100 -73x100 89x10) 1.0x100 3.7x10) 1.3100 25x 100 00-05 90 2.6x103 13x10-1 115x102 23x102 00-10 12. 62103 12x10! 3.9x102 43x102 00-15 8 61103 80102 3.1«102 34x102 00-25 6 3.9103 5610-2 10102 119x102 00-40 3 2.4103 1.7x102 7610-3 91x103 00-60 3 16103 12x102 5.1103 61103 NOTE:Specific activity is decay corrected to 1995. Nastands for numberof individual samples. 24x102 3.3102 2.7x10-2 2.0x10-2 7.6103 51103 42x100 -35x100 -38x100 -44x100 -5.0x100 -54x100 3.9101 1.0x 100 1.0100 9.7x10-1 9.9x 10-1 9.9x10-1 00-05 05-10 10-15 15-25 25-40 40-60 N?@ Minimum Bq g~! dry wt. Maximum Median Mean 90 18 14 15 6 26103 64x103 2.7xK103 47x104 288x105 13101 1.11071 8410-2 78x102% 2.9x102 the village Island. 5 46x105 1510-2 2.0x10-2 217x102 76x103 10x103 14x108 111x104 34x104 58x104 -8.9x109 Table A-8 Americium-241 radionuclide concentration summary for all soil profiles taken 1.4100 the interior of the island during the 1978 NMIRS together with our recent trips from 1986 through 1993 bn Rongelap Island. Soil depth (m 00-05 05-10 10-15 15-25 25-40 40-60 N@ Bq g-! dry wt. Minimum Maximum 366 15103 237 15x103 155 28105 7828x104 35 13104 146 12x104 711x101 884x101 115x101 21x10! 15x10! 18x102 Median Mean SD Mean of logs SD of logs 96x102 34102 118x102 7.0x103 3.1x103 33x108 112x101 54x102 28x102 115x102 89x103 46x103 9.9x10-2 -24x100 771x102 -34x100 2.7x102 4.1100 26x102 -48x100 224x102 ° -5.7x« 100 53x15 42100 8.4101 1.1= 100 1.2 100 1.1.x 100 1.3 x 100 1.610 0-0) -366_—isa1.5x103) -7.1K10-1 9896x102 00-10 «225 16x103 55x101 75x102 00-15 128. 49103 3.9x10-1 62x102 00-25 5235x103 24x10) 41x102 00-40 1724x103) 11x10-1 36x102 00-60 5 1.7x103) 7.7x10-2 12102 NOTE:Specific activity is decay corrected to 1995. Nastands for number of individual samples. 112x101 9.2x102 73x10-2 54x102 3.9x10-2 25x102 99x10-2 7.1102 52x102 41x10? 2810-2 3.1102 84x 10-1 7.810! 7.1101 7.6x10-! 94x10! 15x 100 A-6 -24%x100 -2.7x100 -29%x100 -32%100 -3.6%100 44100