Nuclear industry

Fukushima Reactor 4 poses massive global risk

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Andy Johnson – May 19, 2012

More than a year after a devastating earthquake and tsunami triggered a massive nuclear disaster, experts are warning that Japan isn't out of the woods yet and the worst nuclear storm the world has ever seen could be just one earthquake away from reality.

The troubled Reactor 4 at the Fukushima Daiichi nuclear plant is at the centre of this potential catastrophe. Reactor 4 -- and to a lesser extent Reactor 3 -- still hold large quantities of cooling waters surrounding spent nuclear fuel, all bound by a fragile concrete pool located 30 metres above the ground, and exposed to the elements.

Fukushima a Ticking Time-Bomb: experts

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Experts say acknowledging the threat would call into question the safety of dozens of identically designed nuclear power plants in the U.S.

Brad Jacobson – May 4, 2012

More than a year after the triple meltdown at the Fukushima Daiichi power plant, the Japanese government, Tokyo Electric Power Company (Tepco) and the U.S. Nuclear Regulatory Commission (NRC) present similar assurances of the site's current state: challenges remain but everything is under control. The worst is over.

But nuclear waste experts say the Japanese are literally playing with fire in the way nuclear spent fuel continues to be stored onsite, especially in reactor 4, which contains the most irradiated fuel -- 10 times the deadly cesium-137 released during the 1986 Chernobyl nuclear accident. These experts also charge that the NRC is letting this threat fester because acknowledging it would call into question safety at dozens of identically designed nuclear power plants around the U.S., which contain exceedingly higher volumes of spent fuel in similar elevated pools outside of reinforced containment.

Another Radioactive Water Leak at Fukushima Plant

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Tsuyoshi Inajima – April 5, 2012

Tokyo Electric Power Co. said as much as 12 tons of radioactive water leaked from a pipe at its crippled Fukushima nuclear station, the second such incident in 11 days at the same pipeline, raising further doubts about the stability of the plant.

Part of the water may have poured into the sea through a drainage ditch, Osamu Yokokura, a spokesman for the utility, said by phone. The company known as Tepco stopped the leak from a pipe connecting a desalination unit and a tank today, he said.

Japan Weighed Evacuating Tokyo in Nuclear Crisis

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Martin Fackler – February 27, 2012

In the darkest moments of last year’s nuclear accident, Japanese leaders did not know the actual extent of damage at the plant and secretly considered the possibility of evacuating Tokyo, even as they tried to play down the risks in public, an independent investigation into the accident disclosed on Monday.

The investigation by the Rebuild Japan Initiative Foundation, a new private policy organization, offers one of the most vivid accounts yet of how Japan teetered on the edge of an even larger nuclear crisis than the one that engulfed the Fukushima Daiichi Nuclear Power Plant.

Report: Gov't "collapsed" during Japan nuke crisis

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Lucy Craft – February 27, 2012

The one year anniversary of the devastating earthquake and tsunami in Japan is less than two weeks away, but details about the nuclear meltdown that happened that tragic day are just beginning to emerge.

On Feb. 27, a news helicopter was allowed close enough to get a good glimpse of the crippled Fukushima Dai-Ichi nuclear power plant. Today, a report revealed the chaos between Japan's leaders during the crisis.

Japanese nuclear firm says it 'no longer owns' fallout

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Rick Wallace – December 27, 2011

In terms of sheer chutzpah, Tokyo Electric Power Co's claim that it no longer owns the radioactive isotopes that spewed out of its Fukushima Daiichi nuclear plant in March takes some beating.

In defending a lawsuit from a Fukushima Prefecture golf club, lawyers said the radioactive cesium that had blighted the Sunfield Nihonmatsu golf course's fairways and greens was the club's problem. The utility has taken a similarly hard line defending claims from ryokan (inn) and onsen (spa) owners.

Fukushima fuel rods may have completely melted

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Justin McCurry – December 2, 2011

Fuel rods inside one of the reactors at the Fukushima Daiichi nuclear power plant may have completely melted and bored most of the way through a concrete floor, the reactor's last line of defence before its steel outer casing, the plant's operator said.

Tokyo Electric Power (Tepco) said in a report that fuel inside reactor No 1 appeared to have dropped through its inner pressure vessel and into the outer containment vessel, indicating that the accident was more severe than first thought.

Second nuclear plant official files whistleblower claim

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Annette Cary – November 13, 2011

A second official at the USA Hanford vitrification plant has filed a federal complaint, claiming she was discriminated against for being a whistleblower on issues related to safe nuclear operations of the plant.

Donna Busche, manager of environmental and nuclear safety at the plant, filed the complaint against URS Corp. and Bechtel National with the Department of Labor.

Israel bars nuclear whistle-blower from emigrating

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AFP – October 6, 2011

Israel's supreme court on Thursday barred nuclear whistle-blower Mordechai Vanunu from emigrating on the grounds he still poses a threat to state security, Israeli media reported.

Vanunu, under orders to stay in Tel Aviv and not to speak to journalists, "has proved several times he can not be trusted and does not respect the letter of the law," supreme court judges said in turning down his appeal.

Large Zone Near Japanese Reactors Uninhabitable

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Martin Fackler – August 21, 2011

Broad areas around the stricken Fukushima Daiichi nuclear plant could soon be declared uninhabitable, perhaps for decades, after a government survey found radioactive contamination that far exceeded safe levels, several major media outlets said Monday.

The formal announcement, expected from the government in coming days, would be the first official recognition that the March accident could force the long-term depopulation of communities near the plant, an eventuality that scientists and some officials have been warning about for months.

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