Sr TABLE 12 CONCENTRATION OF FISSION PRODUCTS IN AIR AT VARIOUS ALTITUDES pate and Pisce Altitude (feet) Tine of Sampling (hours) 075 Number of Samples Method of Collection Filters on 2 ad/ad 1.2, 1.0 0.0lg, 0.03 4/27/S3 40,000 11/30/53 (WM. ) 39,500 2.0 2 12/8/53 88,000 6.0 1 Electrostatic 0. 12/8 /53 35,000 2.0 2 Filters on 1.9] 12/15/53 Lo, 300 2.0 2 12/21/53 (u.Y.) 200 19 1 12/22/83 (N.Y. ) 200 2h 2 " 0.0, 0.0% 12/2353 200 2k 2 ® 0.1R, 0.12 Wfeh - 26/53 200 96 2 " 0.08, 0.07 (calif .) (¥.M.) (N.M.) (N.M.) (N.Y.) (N.Y.) Jet Aircraft ". Precipitator Jet Aircraft — . 1.7 0.07, 0.12 Hi-¥ol. (MSA Comfo) 0.0 : “oh Sa orga? a =j5- —Sa 00131986.038 1051061