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Effects of the Chernobyl disaster
The 1986 Chernobyl disaster triggered the release of substantial amounts of radioactivity into the atmosphere in the form of both particulate and gaseous radioisotopes. It is one of the most significant unintentional releases of radioactivity into the environment to present.
The work of the Scientific Committee on Problems of the Environment (SCOPE), suggests that the Chernobyl incident cannot be directly compared to atmospheric tests of nuclear weapons through a single number, with one being simply ''x'' times larger than the other. This is partly due to the fact that the isotopes released at Chernobyl tended to be longer-lived than those released by the detonation of atomic bombs, thus producing radioactivity curves that vary in shape as well as size.
==Radiation effects to humans==
According to a 2009 United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), the Chernobyl accident had by 2005 caused 61,200 man-Sv of radiation exposure to recovery workers and evacuees, 125,000 man-Sv to the populace of the Ukraine, Belarus, and Russia, and a dose to most of the more distant European countries amounting to 115,000 man-Sv. The same report estimated a further 25% more exposure would be received from residual radiosotopes after 2005.〔(【引用サイトリンク】title=UNSCEAR 2008 Report to the General Assembly, Annex D )〕 The total global collective dose from Chernobyl was earlier estimated by UNSCEAR in 1988 to be "600,000 man Sv, equivalent on average to 21 additional days of world exposure to natural background radiation."〔(【引用サイトリンク】title=Assessing the Chernobyl Consequences )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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