III, B. Activity Concentrations in Air (Continued ) Upshot-Knothole (Spring 1953) 24-hour average concentration Locality (Microcuries per cubic meter) Saint George, Utah 1.29 Lincoln Mine, Nevada Mesquite, Nevada 4.0 x 10 “1 1.7 x 10-1 Groom Mine, Nevada 3.4.x 10-2 Pioche, Nevada 2.0 x 10-2 Nellis AF Base, Nevada 1.7 x 10 ~2 Ely, Nevada Las Vegas, Nevada 1.6 x 10 ~2 ° 1.0 x 10 ~2 Atomic Energy Commission's 14th Semi-Annual Repcort to Congress, January-June 1953 Teapot (Spring 1955) "-.-The highest concentration of radioactivity in the air following any one detonation was at Ely, Nevada. This amounted to about 6/100 of a micrecurie per subie meter averaged over the 28 hours that the material was cressnt in signifticent quantities. The highest concentrations in air, 273 s¢ries, occurred at Ely, Nevada and Alamo, Nevada where the total aczitisnal radiation doses to the lungs from inhaling fallout usterisl were ostimated to be about equivalent to that expected from creataoing air tenteining norzal amounts of naturally radioactive moteriils, for s rerici of several days," oll? lmerc Iernissioa’s T2th Ge-d-toaval Penert de Sreneress, a Ez rr x Y. =~ ae s nw ha 7 a - ~ a 7” yon ” aes, ” a. ™ Fs & stad ie F4 - 29 -

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