SIZE DISTRIBUTIONS OF RADIOACTIVE AEROSOLS ALTITUDE, KM 30 ITT TTT TTT 7\V ITT] 169 rrr 25 KK — 20 — 15S a TROPOPAUSE —— 10 Ln A X ®@ © | 3 0 — 10° 30 pep gitieth 10! >0.15 p RADIUS 0.02 TO 0.15 p RADIUS <0.02 » RADIUS TOTAL a op te 10? 10 10° M4Ce CONCENTRATION, DIS/MIN PER CUBIC METER(S.T.P.) TTT TTT TTT TT bert TT TTT TT TT TTT 25 ALTITUDE, KM 20 F- 5 TROPOPAUSE —— 10 — 5-- 7 0 10° Lt tail Lot pititil Lt 10° 10! 957- CONCENTRATION, DIS/MIN PER CUBIC METER (S.T.P.) Fig. 4—(Continued) tidy 10°