World is discussing Japan reactors from Fukushima nuclear power Plant. The cooling of fuel rods is in process. Yesterday authorities attempted to cool the reactors by dropping water from helicopters but unable to control the overheating reactors. Some 330 Fukushima emergency workers were trying to keep the nuclear power plant cooled with seawater, to keep fuel rods from overheating and releasing more radioactive material.

TEPCO has been forced to consider other options—including burying the plant just like Chernobyl. On Tuesday, exposure levels at the nuclear plant reached up to 400 millisieverts of radiation an hour before plunging to 0.6 millisievert an hour, according to the International Atomic Energy Agency (IAEA).

TEPCO said that “it is not impossible to encase the reactors in concrete. But our priority right now is to try and cool them down first.” A power cable will be attached to two of the reactors, which have been without power for days now, in the hopes the water pumps can start working again and cool the fuel rods down. They’re hopeful power can be restored by Sunday to the No.3 and No.4 reactors, which are the least-damaged of the lot.

Authorities have ordered the public to evacuate to a distance of 12 miles (20 kilometers) from the nuclear power plant. From there to about 19 miles (30 kilometers), people have been told to stay indoors and seal all windows and doors.

The immediate need for authorities is to get the reactors to cool down.

“The best strategy would be just to leave the contaminated site alone for, say, one year,” said Chumak, head of external exposure dosimetry at the Research Center for Radiation Medicine of Ukraine.

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