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• 22:09, 10 June 2010 Jontas (Talk | contribs) uploaded File:Protectionfactorchernobyl30cm.png ({{Information |Description={{en|The protection factor provided by '''30 cm of concrete sheilding''' where the source is the idealised Chernobyl fallout. Note that this image was drawn using data from the OECD report, [http://atom.kaeri.re.kr/ton/nuc6.html)