Appendix Table 3 Predominant Gamma-Emitting Radionuclides in Soil from Christmas Island, August 1975 Radionuclide, pCi/g, dry® Depth (cm) 40 K 137 Cs Uy ns ns 238 U London " 0-5 6-12 ns? ns ns ns X-site 0-2.5 ns ns 0.05 + 0.03 0.84 + 0.23 Airfield, wash-sump Q-2.5 ns ons 0.05 + 0.02 0.83 + 0.22 Northeast Point " " 0-2.5 1-6 ns ns ns 0.06 + 0.02 ns ns ns ns BW Site 0-2.5 1.5 + 0.9 ns ns ns UW-3 0.2.5 ns 0.08 + 0.04 0.04 + 0.04 a. The error values are two-sigma, propagated, counting errors for a single sample. b. ns = not significant; the net sample count is less than the two-sigma, propagated, counting error. ns 0.44 + 0.40 0.89 + 0.52 ee Location