Time: Was Fukushima a China Syndrome?

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The China Syndrome refers to a scenario in which a molten nuclear reactor core could could fission its way through its containment vessel, melt through the basement of the power plant and down into the earth. While a molten reactor core wouldn't burn "all the way through to China" it could enter the soil and water table and cause huge contamination in the crops and drinking water around the power plant. It's a nightmare scenario,the stuff of movies. And it might just have happened at Fukushima.

Last week, plant operator Tepco sent engineers in to recalibrate water level gauges in reactor number 1. They made an alarming discovery: virtually all the fuel in the core had melted down. That means that the zirconium alloy tubes that hold the uranium fuel and the fuel itself lies in a clump---either at the bottom of the pressure vessel, or in the basement below or possibly even outside the containment building. Engineers don't know for sure, though current temperature readings suggest that fission inside the reactor core has definitely ceased for good (i.e. there will be no further melting).

Anecdotal evidence doesn't bode well for how far the fuel melted: Tepco has been pumping thousands of tons of water onto reactor 1 to try to cool it—yet the water level in the containment vessel is too low to run an emergency cooling system. That means the water is escaping somewhere on a course cut by molten fuel--probably into the basement of the reactor building, though it's also possible it melted through everything into the earth.

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Meanwhile, around 5,000 residents in two towns, Kawamata and Iitate, some 30 km from the power plant—well beyond the the 20 km exclusion zone--were evacuated on Monday. More evacuations are expected in the coming days as Tepco continues to struggle with the crisis. Around 3,400 cows, 31,500 pigs and 630,000 chickens will soon be slaughtered inside the Fukushima exclusion zone as feeding them has proven to be impossible.

Read more: http://ecocentric.blogs.time.com/2011/05/16/was-fukushima-a-china-syndrome/#ixzz1MZWy8TdK

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1. Sad....

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2. Yomiuri Daily: Residents begin evacuating

About 1,200 residents in Kawamatamachi will evacuate from their homes.

In Iitatemura, about 4,500 residents will move from the village to accommodations in Fukushima city, such as housing for local government officials and hot spring hotels. Sixty-four people from 10 households began moving to Fukushima on Sunday.

Households with pregnant women, babies and small children are scheduled to evacuate first.

Most of Iitatemura is located more than 30 kilometers from the Fukushima No. 1 power plant. However, the level of radiation detected in the village was as high as that in areas within a 20-kilometer radius of the power plant, which has been designated as a no-entry zone.

http://www.yomiuri.co.jp/dy/national/T110515002535.htm

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3. kick nt

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4. Kick. nt

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5. Time&CNN: We Once Reported News.

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