PLUTONIUM-239 ON AIRBORNE SOLIDS COLLECTED AT THE HANFORD METEOROLOGICAL TOWER DURING AUGUST 13 TO NOVEMBER 12, 1976 AIR SAMPLING HEIGHT, m T a T yt 7 vy T mo FE F " LARGE | T 7 \ 7 4 "SMALL" \ ~ 4 IMPACTOR- by COLLECTED a \MO PARTICLES 24 7 " a \ \ c — J 1 \ Ee —_ \ 1 a — \ 4 \ } \ a ‘ —o4 l 10° an o 0 1 J ~ ram COLLECTED PARTICLES F r qT OI} Sond " COWL L T toa © tia ! 107 4 ~=16 COUNTING 7 LIMITS poetiiris 10° AVERAGE Bp, CONCENTRATION, uCi /g Figure 3 714 1