Letter: Nuclear leaks

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The Independent Online
Nuclear leaks

Sir: According to Open University figures, radio-isotopes of xenon and krypton entered the environment following the Three Mile Island nuclear accident (report, 3 June; letter, 13 June).

In fact there have been three severe accidents involving radiation release. To Chernobyl and Three Mile Island must be added the Windscale reactor fire in October 1957, which released iodine 131, krypton 85 and polonium 210 into the environment.