Table 13 Estimated Unweathered Activity on Surface and Exposure Rate at One Meter, Rongelap Island H+0.5 Day Nuc lide Reference Nuc lide Activity per Unit Area, Ci km724 H+0.5 Day Exposure Rate, R h71d _ H+26 Day Activity H+26 Day per Unit Area, Ci km72a Exposure Rate, R h7lb 355 45a 753Ge 77Ge 77as 78as 77 ge Blse Blige 35g 45ca Sz, 957 952r 95zr 952r 95zr 95zr 5 .0x10° 1.8x109 &.9x109 9.0x109 1.5x10! 5.7x10l 4.7x1072 1.9x107! ‘1.3x1071 2.5x1l0712 2.3x1076 1.9x1074 1.9x1076 1.2x1073 6.7x1078 2.6x1076 2.6x1078 4.0x100 1.7x101 - 2.3x10712 7 ~ - 83gr B4gr 83 mgr 85myr 87kr 88xr_ 86Rb 88Rb 89Rb 895r 90s¢ Sige 92s, 9577 95zr 952r 9527 95Zr 92r 95zr 9ly 89s, 89sr 90sr Ply 9ly 1 .8x103 4.6x1072 5.0x104 7.9x103 4.1x102 8.9x103 5.7x1073 1.7x104 3.9x1079 1.5x102 1.0x109 5.7x104 2.0x104 2.5x1074 1.3x1076 3.0xl072 2.7x1072 5.3x1073 2.7x107! 9.2x1079 1.8x1071 1.4x10713 3.8x1077 7.kx1072 4.6x1071 ~ 1.0x102 1.0x109 - ~ 2.41077 ~ - 90y diy 91 my 92y 93 9525 90y 9ly diy 9ly 91 9525 1.4n1072 6.6x102 3.4x104 8.4x104 7.0x104 6.8x102 3.7x10711 3.7x1075 3.4x1071 3.8x107! 1.1x107 9.6x1073 1.0x109 6.6x102 5.2x102 2.5x10710 3.7x1079 ~ 7.2x1073 95Nb 95 aNb 97 Nb 97 mp 99M 95Nb 957r 95zr 95zy 95zr 3.1x1071 6.4x101 4.42104 3.9x104 1.5x104 4.0x1076 1.4x1074 5.4x107! 5 .3x1071 4.5x1072 2.1x102 - 2.7x10 - 6.4102 5.9x1073 4.0x102 3.8x10 82pr 89my zr 99mT¢ 103Ry 95z¢ 89s, 95Zr 952 103 Ry 2.8x1072 1.4x1073 4.0x104 1.0x104 1.3x1076 2.4x1078 1.3x1071 2.2x1072 - 33 - - - - - ~ - 7 a