Monday, May 2, 2011

Japan Quake: Latest Updates, May 2, 2011

#Fukushima I Nuke Plant: Ishikawa of JNTI Talks about Reactor Core Conditions

"I believe the fuel rods are completely melted. They may already have escaped the pressure vessel. Yes, they say 55% or 30%, but I believe they are all melted down. When the fuel rods melt, they melt from the middle part on down.

"I think the temperature inside the melted core is 2000 degrees to 2000 and several hundred degrees Celsius. A crust has formed on the surface where the water hits. Decay heat is 2000 to 3000 kilowatts, and through the cracks on the crust the radioactive materials (mostly noble gas and iodine) are escaping into the air.

"Volatile gas has almost all escaped from the reactor by now.

"The water [inside the pressure vessel] is highly contaminated with uranium, plutonium, cesium, cobalt, in the concentration we've never seen before.
And:
"It is imperative to know the current condition of the reactor cores. It is my assumption [that the cores have melted], but wait one day, and we have water more contaminated with radioactive materials. This is a war, and we need to build a "bridgehead" at the reactor itself instead of fooling around with the turbine buildings or transporting contaminated water."

Cesium found in sludge  NHK via Rense.

The prefecture's investigation found that the sludge contained 26,400 becquerels of radioactive cesium per kilogram.

The solidified slag made from it contained 334,000 becquerels per kilogram, which is 1,300 times the level before the accident at the Fukushima Daiichi nuclear power plant.

Weather chief draws flak over plea not to release radiation forecasts  Via Rense.

The chief of the Meteorological Society of Japan has drawn flak from within the academic society over a request for member specialists to refrain from releasing forecasts on the spread of radioactive substances from the troubled Fukushima Daiichi nuclear plant.

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Fukushima still a threat: senior officials  Read it or watch the video.  Via Rense.

Two senior Japanese officials have warned that there is still a real risk of a catastrophic disaster at the stricken Fukushima nuclear power plant.

Since Japan’s devastating earthquake and tsunami seven weeks ago an army of emergency workers has stabilised two of its six reactors but the other four remain volatile.

The head of the emergency operation at the plant, Masao Yoshida warned: “If a similar strength earthquake or tsunami hits us it would cause fatal damage, especially a tsunami.”

Japan to build tsunami wall at N-plant

The Tokyo Electric Power Co. (TEPCO) has planned to construct a wall in an attempt to protect its biggest atomic power station from probable tsunamis in the future.

TEPCO said the wall would be built at a height of about 10 meters above sea level, made of rocks contained by wire mesh, designed to resist waves by an 8-magnitude quake, AFP reported Monday.

The operator of the Fukushima nuclear plant has also set plans to triple the number of staff, nuclear workers and subcontractors from 1,000 to 3,000 to share the burden and reduce the individuals' exposure to radiation.

So, they're going to build a wall to  withstand a quake magnitude surpassed by the 9.0 quake, and to a smaller tsunami height than the one recorded. 

I'm sure everything will be fine..

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