Japan’s damaged nuclear plant may be in danger of emitting sudden bursts of heat and radiation, undermining efforts to cool the reactors and contain fallout. The potential for limited, uncontrolled chain reactions, voiced yesterday by the International Atomic Energy Agency, is among the phenomena that might occur, Chief Cabinet Secretary Yukio Edano told reporters in Tokyo today. The IAEA "emphasized that the nuclear reactors won’t explode," he said.
Radioactive chlorine found March 25 in the No. 1 turbine building suggests chain reactions continued after the reactor shut down, physicist Ferenc Dalnoki-Veress of the James Martin Center for Nonproliferation Studies in Monterey, California, wrote in a March 28 paper. Radioactive chlorine has a half-life of 37 minutes, according to the report.
Contamination of seawater found near the plant has increased. Radioactive iodine rose to 4,385 times the regulated safety limit yesterday from 2,572 times on Tuesday, Nishiyama said. No fishing is occurring nearby and the sea is dispersing the iodine so there is no threat, he said.
Source: bloomberg
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