24 2013116 1
2
23
24
24 (ICRP Publication 101, 57) ICRP Publ.101 Fig.2.1
25
26 ~ (1) (1) 2011311 2011315 葛 楢 () 2012315 2071315
1/2 27 137 Cs () X i = C ia Cs-137 V i i V i 137 Cs A Cs-137 C i A i = C i A 137-Cs
28 C i A 137-Cs C i A 137-Cs V i C i A 137-Cs V i 1.42.20.9 2()1.550 35%65% V i 30 kbq/m 2 0.07 m s -1 0.01 m s -1 30 kbq/m 2 0.01 m s -1 0.001 m s -1
137 Cs 29 GM (MBq m -2 ) GSD 38 0.14 1.87 60 0.13 1.94 94 0.13 2.13 82 0.12 2.00 118 0.07 2.71 109 0.04 2.81 31 0.02 1.48 9 1.53 3.67 14 1.23 3.90 38 0.95 4.02 楢 16 0.92 2.61 53 0.61 1.77 16 0.60 2.90 葛 18 0.26 1.94 78 0.11 2.81 37 0.10 2.42 14 0.07 1.77 2 0.01 1.34 266 0.02 2.14 1 45 40 0.8 35 30 0.6 25 20 0.4 15 10 0.2 5 楢 葛 30 kbq/m 2 () 0 0-0.1 0.1-0.2-0.3-0.4-0.5-0.6-0.7-0.8-137 137 Cs (MBq/m 2 ) 2 ), (134137), 7, 7-1 (2011)
10 2 (60)(65) (53)JA(60) 20122(20122~4) (20122) 0.2 0.1 0.4 15.1 7.0 1.0 0.3 0.5 20.9 1.2 1.3 0.1 13.6 0.3 0.4 2.3 6.2 1.1 0.1 0.3 0.6 16.7 2.2 2.4 1.4 0.4 0 6 12 18 24
211 6030 2 3 4 60 20 2 2 3 3 4 4 5025 4020 3015 GM AM 0.41 7.62 0.56 7.56 0.82 7.46 0.57 7.55 GSD 3.72 2.82 3.48 2.61 2.65 2.40 3.28 2.61 2 3 4 50 15 40 30 10 AMGM 5.18 0.96 6.12 1.28 7.89 1.68 6.40 1.27 SDGSD 3.34 3.64 3.33 4.28 2.87 2.19 3.19 3.37 2 2 3 3 4 4 2010 105 20 5 10 00 ~2 2~ 4~ 6~ 8~ 10~ 12~ 14~ 1() 0 ~2 ~2 2~ 2~ 4~ 4~ 6~ 6~ 8~ 8~ 10~ 12~ 14~ 1() JA
12 2 (1 m) 1.2 m(1 m) Na(TI)TCS171B 194516 140 ) 0.6 120 100 80 60 40 20 GM (μsv h -1 ) 0.21 0.35 (μsv h -1 ) 0.5 0.4 0.3 0.2 0.1 H * in = 0.26H * out + 0.11 0 0.0 0.0 0.5 1.0 1.5 2.0 (μsv h -1 ) (μsv h -1 )
13 2 137 Cs (1) (2) (2,3) (3) (2) (4) (1.5 502) ( 1.4 2.20.9) 30kBq/m 2 V I-131= 0.07 m/s, V other =0.01 m/s V I-131= 0.01 m/s, V other =0.001 m/s : GM = 0.57 h, GSD = 3.28 : AM = 6.97 h, SD = 2.90 : GM = 1.27 h, GSD = 3.37 22.2 L/d (5) 6) (4) (315 137 Cs) 131 I 11.7 132 I * 132 Te 8.0 134 Cs 0.94 136 Cs 0.2 137 Cs 1.0 140 Ba 0.1 140 La * 110m Ag 0.01 129m Te 1.5 132 I 140 La (1), (134137), 7, 7-1 (2012) (2) WHO, Preliminary dose estimation from the nuclear accident after the 2011 Great East Japan Earthquake and Tsunami, (2012) (3) Golikov V. Yu. et al., External exposure of the population living in areas of Russia contaminated due to the Chernobyl accident, Radiat and Environ Biophys. 41, pp 185-193(2002). (4) ICRP Publication 71 (1995) (5), (6) EPA Federal Guidance Report No.12 (1993)
50 14 2 1(mSv) 40 30 20 10 0 1) 2) 3) 4) 95% 50% 0.6~0.7 WHO ) WHO 110~50mSv 1~10mSv 1 1.5~2 ) WHO, Preliminary dose estimation from the nuclear accident after the 2011 Great East Japan Earthquake and Tsunami, (2012)
15 2 0% 20% 40% 60% 80% 100% 0% 20% 40% 60% 80% 100% 葛 葛 楢 (1) 楢 (2) (1) (2) 315 160%~80% 160%~80%
16 2 0% 20% 40% 60% 80% 100% 楢 (1) 楢 (2) 葛 0% 20% 40% 60% 80% 100% 葛 (1) (2) 90% % 10%
17 2 (msv) 50 40 30 20 10 1) 2) 0.6~0.7 95% 50% 1 0 60 95% 30mSv 25mSv 5.5mSv 311
18 2 110~50mSv 1~10mSv 90%%10% 311
楢 楢 葛 2 19
20 2 No. 1 2 3 13 14 15 16 17 18 葛
21 2 JA Golikov et al., 2002, Radiat. Environ. Biophys. (41), pp 185~193. 1.0 0.5 0.0 virgin land dirt surfaces asphalt 0 1 2 3 4 5
22 2 H in μsv/h 0.6 0.5 0.4 0.3 0.2 0.1 H in = 0.26H out + 0.11 1 2 1.2m 0.0 0.0 0.5 1.0 1.5 2.0 H out μsv/h H out = H a,out + H n,out H in = sh a,out + H a,in + H n,in s H a,out H a,in H n,out H n,in : : : : : H a,in
22 2 JA113~42 PDM-122 SZ 1.2 1) 2) 95% 50% 0.9 (msv) 0.6 0.3 0.0 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 2011 2012