Fukushima radiation higher than first estimated
Reuters
Iodine-131 is a fast-decaying radioactive substance produced by fission that takes place inside a nuclear reactor.
It has a half-life of eight days. More than 99 percent of the radiation
released by the accident came in the first three weeks, it added.
Michele Kearney's Nuclear Wire - Major Energy and Environmental News and Commentary affecting the Nuclear Industry. Nuclear Activities
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