. § . a 1 nD 9s . r a ‘ae -oo pte ae ee ome Tamayo Rete Sains pe LEDissste e . = yee ee 7 ee ae on m sr90for ; 1.0 * 0.8 - . ol ve Y. 1.0 ¥ ee re: = a zt _ as 125 4! e 3, 1 128 0.4 ~ 21 & a= ar -~ 1.4 rted in the sit in Table 6. s a ar?/er89 aoe ak. A series of senpleswere talea by Air Force jets at about 40/000 feet. r total radiostrem@@ium and Sr9°, The autograpee-showed the prdsence of -_ an The papers from the jot filters were radica relatively few particles of high activity. ‘nalyses aré given in Table 9. 10517053 ed and anglysed for The results of r@dicchemical a