Former Fukushima boss dies of cancer

2013-07-09 13:08
Former chief of Japan's crippled nuclear power plant, Masao Yoshida, speaks at the Tepco Fukushima Dai-ichi nuclear power plant in Okuma town, Fukushima Prefecture, northeastern Japan. (Kyodo News/ AP)

Former chief of Japan's crippled nuclear power plant, Masao Yoshida, speaks at the Tepco Fukushima Dai-ichi nuclear power plant in Okuma town, Fukushima Prefecture, northeastern Japan. (Kyodo News/ AP)

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Tokyo - The former boss of Japan's Fukushima nuclear plant, who stayed at his post to try to tame runaway reactors after the 2011 tsunami, died of cancer on Tuesday, the operator said.

Masao Yoshida, aged 58, was at the power station on 11 March 2011, when towering waves swamped cooling systems and sparked meltdowns that released plumes of radiation.

Yoshida led the subsequent effort to get the crippled complex under control, as workers battled frequent aftershocks to try to prevent the disaster worsening.

Government contingency plans revealed after the event showed how scientists feared a chain reaction if Fukushima spiralled out of control, a scenario that could have seen other nuclear plants engulfed and would have meant evacuating Tokyo.

His selfless work is contrasted in the public mind with the attitude of his employers, who seemed willing to abandon the complex and are popularly believed to have shirked their responsibility.

"He died of oesophageal cancer at 11:32 today at a Tokyo hospital," said a spokesperson for plant operator Tokyo Electric Power (Tepco).

Brain haemorrhage

Yoshida left the plant soon after being suddenly hospitalised in late November 2011.

Tepco has said his cancer was unlikely to be linked to radiation exposure in the months after the disaster.

The company has said it would take at least five years and normally 10 years to develop this particular condition if radiation exposure were to blame.

Soon after he underwent surgery for cancer, Yoshida was felled by a brain haemorrhage and underwent another operation in July 2012, Tepco said.

He was still employed by the company at the time of his death.

The disaster saw three reactors go into meltdown, spewing radiation into the air, sea and food chain in the worst nuclear accident since the 1986 Chernobyl disaster.

High levels of cancer-causing substance

No deaths have been directly attributed to the radiation released by the accident, but it has displaced tens of thousands of people and left large areas of land uninhabitable, possibly for decades.

The plant itself remains fragile, with Tepco struggling to deal with the tonnes of radioactive water left over from efforts to cool molten reactor cores.

Tepco said on Tuesday toxic radioactive substances in groundwater have rocketed over the past three days and engineers did not know where the leak was coming from.

Samples taken on Monday showed levels of possibly cancer-causing caesium-134 were more than 90 times higher than on Friday, at 9 000 becquerels per litre, Tepco revealed.

Levels of caesium-137 stood at 18 000 becquerels per litre, 86 times higher than at the end of last week, the utility said.

Scientists say fully decommissioning the plant will take 30 to 40 years.

Read more on:    tepco  |  japan  |  nuclear

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