The portion of the total radiation dose (in air) contributed by each isotope versus time after the Chernobyl disaster, at the site thereof. Note that this image was drawn using data from the OECD report, [1] and the second edition of 'The radiochemical manual'.
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![The portion of the total radiation dose (in air) contributed by each isotope versus time after the Chernobyl disaster, at the site thereof. Note that this image was drawn using data from the OECD report, [1] and the second edition of 'The radiochemical manual'.](image_science_archive_68/010701_68/180550_Airdosechernobyl2_68.jpg)