1o7!9 rer x Ll a i O ~ | PY? ty : = — w = é x ; / x / ‘ X { “OM “+ +] pf “ : _ x \ cs'37 - \ J \ x ~ 4 \ 2 Kay \ 7 i x / _ \ Mean Time T= 14mo > a C = ©a + . ‘ Xm < Bel \ At, pf? tepetay% - 1; + \ yoN C ™ w PP a ga / t EN i 10 bee Pa + © faa) fb = P Ww Trt iO 15 = Meon Time T =~ 23mo \! ~ PEt ytd ttt t tt ttt tt tt tt tt tt | SONDJFMAMJJASONDJFMAMJJASONDOJ 1958 1959 . . 1960 DATE 7 I96I 137. Fig. 10 -- Concentration of Be and Cs in surface air at Argonne National Laboratory 127