[Vou. 91 1964] yARTIN : RADIOECOLOGY AND STUDY OF ENVIRONMENTAL RADIATION 4 bin q r - - % r |! eT = 7000 SY “ - | 3 a & — 3 & i 1 \ 2 r @ ~o ‘cal = r aN \ \ \ | > ‘\ JACK RABBIT — APPLE 2 aq OL < a < = “ a o : 10 | >5 5 - “ \ iS > Ee 4 \ * a | \. KANGAROO RAT — MET “ P e $ ~ 00 0 A wo— - = - uax ul k Y 2 307 eo + t F & r ~ . | aq = _ t “0 o days after idberg et al. 1 ° 1 i 20 i 1 1 1 2 L A i L 1 aL rn A A 40 eo oo 160 20 40 wo DISTANCE FROM GROUND ZERO (MILES) Fig. 9. Concentration of radioiodine in the thyroids of kangaroo rats and jack rabbits living in fallout contaminated areas 12 to 160 miles from ground zero. From Lindberg et al. (1959). Table 8 illustrates the persistence of mixed fission product activities in the tissues of jack rabbits living in a fallout contaminated environment.