F, The following data are reported for single particles collected during Upshot-Knothole# and Tunbler-Snapper#*, Dstt aa DistancetoonGround Za sf, — 2,000 45 200 130 1,426 x 92% 900 10 919 460 22 723 350 4.7 Tl 400 10. 555 149 1.7 387 250 4.7 23% 4? 14.7 one 115 5.2 95 al 3.0 U7 0.3 — 7 20 It is nob intended here to imply these are the naximm specifie activities per particle that existed or could exist. The data at 14.7 miles are reported te show the vide range of specifie activity that may *WEe@11. "Distribution and Characteristics of Fallout at Distances Greater than 10 Miles from Ground Zero, March and April 1953", Rainey, C.T., ot al. (SECRET) snd LA-1685. #eUCLI-243. “Preliminary Study of Off-site Airborne Radioactive Materials, Nevada Proving Greunds", February 1953 (SECRET) ang Li-1685. #**Date from estimations boused on radiceutograph methods. gtr 3 ye? oy 4 b Fad occur at one locality,