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20160713MSC-WNISR2016V2-LR
20160713MSC-WNISR2016V2-LR
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contamination. In all parameters listed, Chernobyl’s effects were greater than those at Fukushima.<br />
Little is known about total discharges to the sea, from aerial disposal and from direct liquid<br />
releases.<br />
Table 10 : Comparison of Selected Parameters of the Chernobyl and<br />
Fukushima Accidents<br />
Chernobyl Fukushima Factor<br />
Area contaminated<br />
(>10,000Bq/m 2 Cs-137)<br />
1,437,000 km 2 ** 30,000 km 2^ ~50 x<br />
Percentage of landmass 37% of Europe** 8% of Japan^ ~5 x<br />
Cs-137 source term 85 PBq* 12 PBq* ~7 x<br />
I-131 source term 1,760 PBq* 150 PBq* ~12 x<br />
Collective dose<br />
320,000-480,000**<br />
person-Sv 321<br />
48,000*<br />
person-Sv<br />
~7-10 x<br />
Collective dose to<br />
thyroid<br />
2,240,000**<br />
person-Gray 322<br />
112,000*<br />
person-Gray<br />
~20 x<br />
Evacuees (first year) 130,000 ** 170,000+ ~0.8 x<br />
Clean-up workers<br />
(first year)<br />
130,000** 12,000+ ~12 x<br />
Sources: *UNSCEAR 2013 323 ; **TORCH-2016 324 ; ^ Japanese Science Ministry 325 , +Fairlie (2016) 326<br />
321 Person-sievert is a unit of collective dose for whole body exposures<br />
322 Person-gray is a unit of collective dose for specific organ exposures.<br />
323 UNSCEAR, “UNSCEAR 2013 Report — Volume I, Report to the General Assembly ; Scientific Annex A:<br />
Levels and effects of radiation exposure due to the nuclear accident after 2011 great east-Japan earthquake<br />
and tsunami”, United Nations, April 2014, see http://www.unscear.org/docs/reports/2013/13-<br />
85418_Report_2013_Annex_A.pdf, accessed 5 June 2016.<br />
324 Ian Fairlie, “TORCH-2016”, 31 March 2016, see<br />
https://www.global2000.at/sites/global/files/GLOBAL_TORCH%202016_rz_WEB_KORR.pdf, accessed 4 June 2016.<br />
325 Climate Progress, “Radiation Covers 8% of Japan, Fukushima Crisis ‘Stunting Children’s Growth’ (Though<br />
Not Directly Due to Radiation)”, 28 November 2011, see<br />
http://thinkprogress.org/climate/2011/11/28/377120/radiation-japan-fukushima-stunting-childrens-growth/,<br />
accessed 30 June 2016.<br />
326 Ian Fairlie, “Summing the Health Effects of the Fukushima Nuclear Disaster”, August 2015, see<br />
http://www.ianfairlie.org/wp-content/uploads/2015/08/Summing-up-the-Effects-of-the-Fukushima-Nuclear-<br />
Disaster-10.pdf, accessed 6 July 2016.<br />
Mycle Schneider, Antony Froggatt et al. 100 World Nuclear Industry Status Report 2016