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File:Isotopeshareofgammadosewith30cmconcreteatchernobyl.png |Description=Isotope share of the dose due to external gamma rays from idealised Chernobyl fallout against time |Date=2006-02-26(911 × 623 (20 KB)) - 18:24, 11 June 2010File:Isotopeshareofgammadosewith10cmconcreteatchernobyl.png |Description=Isotope share of the dose due to external gamma rays from idealised chernobyl fallout against time |Date=2006-02-26(911 × 623 (20 KB)) - 19:49, 11 June 2010File:Isotopeshareofgammadosewith20cmconcreteatchernobyl.png |Description=Isotope share of the dose due to external gamma rays from idealised chernobyl fallout against time |Date=2006-02-26(911 × 623 (22 KB)) - 19:53, 11 June 2010File:Soap Detergent manufacturing.JPG ...king of synthetic soap is a very complex and ecologically harmful process (due to the need to manufacture a large amount of chemical ingredients; eg sulph |Date=2009-11-27(2,629 × 1,755 (314 KB)) - 22:33, 17 June 2010