47 Y-91 Y-91m Y-92 Y-93 Zr-95 Y-90 Y-89m Se-81 Se-81m Br-82 Br-83 Br-84 Kr-83m Kr-85m Kr-87 Kr-88 Rb-86 Rb-88 Rb-89 Sr-89 Sr-90 Sr-91 Sr-92 Y-91 Y-91 Y-91 Y-91 Zr-95 Y-90 Sr-89 2r-95 Zr-95 2r-95 zr-95 Zr-95 Zr-95 Zr-95 Zr-95 Zr-95 Zr-95 Y-91 Sr-89 Sr-89 Sr-90 Y-91 Y-91 Zr-95 $-35 Ca-45 Zr-95 Zr-95 Zr-95 Zr-95 $-35 Ca-45 Ge-75 Ge-77 As-77 As-78 Se-77m Nuc lide Nuclide Reference 3.7x10711 3.7x107> 3.4x107! 3.810 1.1x1071 9.6x1073 2.4x1078 1.4x1071 6.6x102 3.4x104 8.4x104 7.0x104 6.8x102 1.4x1073 2.6x10~6 2.6x1078 1.3x1076 2.5x1074 1.3x1076 3.0x1072 2.7x1072 5.3x1073 2.7x107! 9.21079 1.8x107! 1.4x10713 3.8x1077 ~ 7.1x107! 4.6x107! 6.7x1078 2.5x10712 2.3x1076 1.9x1074 1.9x1076 1.2x1073 Rate, R hv! H+0.5 Day Exposure 1.9x107! 1.3x1071 2.8x10~2 1.8x103 4.6x1072 5 .0x104 7.9x103 4.1x102 8.9x103 5.71073 1.7x104 3.9x1079 1.5x102 1.0x109 5.7104 2.0x104 4.7x1072 5.0x109 1.8x100 4.9x109 9.0x109 1.5x10! 5.7x101 Ci Km7~2 H+0.5 Day Activity Per Unit Area, AT ONE METER, RONGELAP ISLAND - 6.6x102 5.2x102 1.0x109 - 1.0x102 1.0x109 - 4.0x109 1.7x101 - Ci Km72 H+26 Day Activity Per Unit Area, ESTIMATED UNWEATHERED ACTIVITY ON SURFACE AND EXPOSURE RATE TABLE IV-5 - 3.7x1075 7.2x1073 -2.5x10710 - - 2.4x107? - 2.3x10712 - Rate, R h7! H+26 Day Exposure