TABUSVivbs Dose to lungs Concentration Mmleroene63 Leeality roa cube mete St. Gsorge, Utsh Lincoln Mine, Nev. 130 4.0 x 107 22 ; Pioche, Nev. Theoretical Mayj—= m_tholexbedy nun ine’ Gov:ma pean: tones Mee riceipty Tp, ms ae Trev. bi TLE 1.29 Mesquite, Nev, Groom Mine, Nev. ae (13 veeks )Based On 20% Deposition ntson and210%Mate fieen i pose —C- se ans) 3.5 1.5 1.0 1.7 x 107+ 13 344 x 107“ 7 0,35 2.0 x 107 3 0.015 Tn IReREREpIREo = Fenner ees 2i-hour Average 2 asgrepe we Re focerstt *The method used in estimnting doses to the lungs is siven in appendix f, The criteria previously estsblished by on Ad Hoc Jangle FeasiDtlity Committee (Weshi ngten, D.C., July 13, 1951), for air concentraticas vas ‘ “a (corversendss of 30 mr/hr). 0 Melt ee re me ee ws =7 nopreniniteisy Noes of. i wO : ah "The 24-hour ave Te to suspenced partic) to 5.0 microns, sSn desirable that a: an activity grease over a pariod of 2/4, heirs, Ai - = Sr «ae rig * : ouniea neter ef air zi id abvel gamma intensity a ™ mectae ~ * in et ey r cubic meter of air, cue . 4-4 f the “above: nor is nS nm tnis sine range have Z erlculated 4 hours after the blast In the January 20, 1954 meeting of the id Hoc Committee the basis for recommending the above air concentrations was discussed. Essentially, these criteria were selected by estimating the gamma dose that might be delivered by the passing of a radioactive cloud. Since there are better methods of estimating gamma doses and since there are uncertainties in evaluating the hazards of such transitory air concentrations as experienced from fallout, and since the preponderance of evidence frompast nuclear test series Po ae de eremenie ame | '’ ater. a bthpled 8 ep MS iOS oth” ow. A SeamAg” ASR thd At a point of human hablistion, the activity of radioactive particles in the stnesphare, shall te licdfae go wan wey mtn ~ae ~ <i