Transcription of 内部被ばくを考える - jpeds.or.jp
1 1 6 24 1 21 1. 2. 3. 4. 1. Bq Gy= / kg Bq= ) 1 Sv = 1000 mSv 1 mSv = 1000 Sv Sv Sv 2 mSv 7 Sv/ 1 1 mSv Sv/ X 1 mSv 60 Sv CT 1 mSv 6900 Sv 2000 30 200 600 100 100 50 200 700 400 2000 Bq/kg K-40 1mSv Sv 1227 1 H23 12 27 2.
2 / RERF LSS Cohort 12 3 1 0 1000mSv 2000mSv 100mSv DS02, 1950 2000 10 8 6 4 2 0 RERF LSS cohort DS02, 1958 1998 0 1000mSv 2000mSv 3000mSv 100mSv 0 RERF LSS cohort mSv/ ICRP UNSCEAR ICRP HP 1000 mSv 10 30 50 D. L. Preston et. al. Radiation Res. 168: 1-64, 2007. Data from RERF s LSS cohort 20 500mSv 5mSv Preston et al. (2007) Radiat Res 168, 1-64 4 4 mSv/ 70 mSv/ (Gy) Nair et al, Health Phys 96, 55 (2009) 0 200 400 600 800 1000 (mSv) 100 mSv 8 15 200 mSv 16 25 200mSv * * Preston, et al J Natl Cancer Inst 100(6):428-36, 2008.
3 3 I-131 26 April 1986 37 185 GBq km-2 ( 1-5 Ci km-2) 185 555 GBq km-2 (5-15 Ci km-2) >555 GBq km-2 (>15 Ci km-2) 30km zone around the Chernobyl nuclear plant River National border Cs-137 555K Bq/m2 27 + mSv/ 37-555 KBq/m2 700 + mSv/ 5 1991 5 10 20 137Cs 40K Cs-137 42 10 12 1999 0 555 1110 137 KBq/m2 20kg 50Bq/kg 1000Bq 500Bq/kg 10,000Bq 90% 100Bq/kg 500Bq/kg Cs-137 500Bq/kg 1mSv WBC 540Bq < - 1mSv1 - 5mSv5 - 10mSv 10mSv (%) , 239: 1007-1011, 2011 1990 2000 0-20Bq/kg 20-70Bq/kg 70-200Bq/kg >200Bq/kg 2000Bq/body 40000 Bq/body 30Bq/kg ATOMICA 0 10 1991 96 12 64 4 6 1998 2000 1983 1 1 1986 4 26 31 / 9720 1986 4 27 12 31 1 / 2409 1987 1 1 1989 12 31 0 / 9472 Y.
4 Shibata et al. Lancet 358:1965-66, 2001 Malignant 19% Benign 81% -Thyroid nodules detected in 128 children and adolescents- 0 15 (Demidchik YE, , Arq Bras Endocrinal Metab 2007) 2012/3/4 2006 20 IAEA WHO 8 3 UNSCEAR2008 1. 134 237 3 28 20 15 2. 4800 9 -15 3. 4. ( ) 4 1 36 2011 3 11 14:46 Mw 1 1 2 3 4 7 1 3/11 16:45 21:23 3km 3/12 5:44 13H 10km 15:36 18:25 26H 20km 3/14 11:01 3/15 2 4 11:00 30km 38 100,000cpm 206,825 102 -5051015202518:0022:0020:0022:007:0015:0 018:000:0010:0018:000:008:0016:000:008:0 016:000:008:0016:000:008:0016:000:008:00 16:000:008:0016:000:008:0016:000:008:001 6:000:008:0016:000:008:0016:000:008:0016 :000:008:0016:000:008:0016:000:008:0016: 000:008:0016:000:008:0016:000:008:0016:0 00:008:0016:000:008:0016:000:008:0016:00 0:008:0016:000:008:0016:000.
5 008:0016:000:008:0016:000:008:0016:000:0 08:0016:003/113/12 3/13 3/14 3/15 3/16 3/17 3/18 3/19 3/20 3/21 3/22 3/23 3/24 3/25 3/26 3/27 3/28 3/29 3/30 3/31 4/1 4/2 4/3 4/4 4/5 4/6 4/7 4/8 4/9 Sv/ /11 3/15 3/19 3/23 4/1 4/9 1 131 131 590 3 11 4 5 15 150 320 28 4 12 16 6 Inhalation Fallout 131I, 133I, 134Cs 137Cs, 90Sr, 132Te 8 1080 35mSv 100mSv 4 24 9 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 12 < 13 < 12 < < 14 < 12 < 12 < 12 < 11 < 27 52 < < 31 < 44 53 < < 7 < < 13 < 11 < 12 33 52 <
6 11 < 14 < 11 < 18 740 980 < < 11 < 11 <50 <50 ( ) (Bq/kg) I-131 Cs-134 Cs-137 2200Bq 550Bq 2000 1000 0 Bq/kg 3 5 7 9 11 2011 1 3 1000 0 910Bq 820Bq 2012 1 18 Koizumi A. et. al. Environ Health Prev Med 2011 90Sr/137Cs 6 8 1/2000 1/10000 1/9 89Sr 50 90Sr 29 4 26 10 I-131, Cs-134, 137 Sr, Pu I-131 Cs-134, 137 1963 1964 1965 1966 1967 1000 100 10 1960 65 1970 75 1980 85 1990 Bq/body 1963 1964 1965 1966 1967 (R.)
7 Wakeford Radiat Environ Biophysics 49:213-227, 2010) 11 Fallout peak
