Sunday, December 11, 2011

ニューヨークタイムズ紙 『除染に割れる日本』 記事全訳

12月6日付け記事、”Japan Split on Hope for Vast Radiation Cleanup”の全訳(私訳)です。


FUTABA, Japan — Futaba is a modern-day ghost town — not a boomtown gone bust, not even entirely a victim of the devastating earthquake and tsunami that leveled other parts of Japan’s northeast coast.

(双葉町) 双葉町は現代のゴーストタウンだ。ブームが去った後のゴーストタウンではなく、壊滅的な地震と日本の北東部の海岸を襲った津波との犠牲者とも言い切れない。

Its traditional wooden homes have begun to sag and collapse since they were abandoned in March by residents fleeing the nuclear plant on the edge of town that began spiraling toward disaster. Roofs possibly damaged by the earth’s shaking have let rain seep in, starting the rot that is eating at the houses from the inside.


The roadway arch at the entrance to the empty town almost seems a taunt. It reads:

“Nuclear energy: a correct understanding brings a prosperous lifestyle.”


「原子力 正しい理解で 豊かな暮らし」

Those who fled Futaba are among the nearly 90,000 people evacuated from a 12-mile zone around the Fukushima Daiichi plant and another area to the northwest contaminated when a plume from the plant scattered radioactive cesium and iodine.


Now, Japan is drawing up plans for a cleanup that is both monumental and unprecedented, in the hopes that those displaced can go home.


The debate over whether to repopulate the area, if trial cleanups prove effective, has become a proxy for a larger battle over the future of Japan. Supporters see rehabilitating the area as a chance to showcase the country’s formidable determination and superior technical skills — proof that Japan is still a great power.


For them, the cleanup is a perfect metaphor for Japan’s rebirth.


Critics counter that the effort to clean Fukushima Prefecture could end up as perhaps the biggest of Japan’s white-elephant public works projects — and yet another example of post-disaster Japan reverting to the wasteful ways that have crippled economic growth for two decades.


So far, the government is following a pattern set since the nuclear accident, dismissing dangers, often prematurely, and laboring to minimize the scope of the catastrophe. Already, the trial cleanups have stalled: the government failed to anticipate communities’ reluctance to store tons of soil to be scraped from contaminated yards and fields.


And a radiation specialist who tested the results of an extensive local cleanup in a nearby city found that exposure levels remained above international safety standards for long-term habitation.


Even a vocal supporter of repatriation suggests that the government has not yet leveled with its people about the seriousness of their predicament.


“I believe it is possible to save Fukushima,” said the supporter, Tatsuhiko Kodama, director of the Radioisotope Center at the University of Tokyo. “But many evacuated residents must accept that it won’t happen in their lifetimes.”


To judge the huge scale of what Japan is contemplating, consider that experts say residents can return home safely only after thousands of buildings are scrubbed of radioactive particles and much of the topsoil from an area the size of Connecticut is replaced.


Even forested mountains will probably need to be decontaminated, which might necessitate clear-cutting and literally scraping them clean.


The Soviet Union did not attempt such a cleanup after the Chernobyl accident of 1986, the only nuclear disaster larger than that at Fukushima Daiichi. The government instead relocated about 300,000 people, abandoning vast tracts of farmland.


Many Japanese officials believe that they do not have that luxury; the area contaminated above an international safety standard for the general public covers more than an estimated 3 percent of the landmass of this densely populated nation.


“We are different from Chernobyl,” said Toshitsuna Watanabe, 64, the mayor of Okuma, one of the towns that was evacuated. “We are determined to go back. Japan has the will and the technology to do this.”


Such resolve reflects, in part, a deep attachment to home for rural Japanese like Mr. Watanabe, whose family has lived in Okuma for 19 generations. Their heartfelt appeals to go back have won wide sympathy across Japan, making it hard for people to oppose their wishes.


But quiet resistance has begun to grow, both among those who were displaced and those who fear the country will need to sacrifice too much without guarantees that a multibillion-dollar cleanup will provide enough protection.


Soothing pronouncements by local governments and academics about the eventual ability to live safely near the ruined plant can seem to be based on little more than hope.


No one knows how much exposure to low doses of radiation causes a significant risk of premature death. That means Japanese living in contaminated areas are likely to become the subjects of future studies — the second time in seven decades that Japanese have become a test case for the effects of radiation exposure, after the bombings of Hiroshima and Nagasaki.


The national government has declared itself responsible for cleaning up only the towns in the evacuation zone; local governments have already begun cleaning cities and towns outside that area.


Inside the 12-mile ring, which includes Futaba, the Environmental Ministry has pledged to reduce radiation levels by half within two years — a relatively easy goal because short-lived isotopes will deteriorate. The bigger question is how long it will take to reach the ultimate goal of bringing levels down to about 1 millisievert per year, the annual limit for the general public from artificial sources of radiation that is recommended by the International Commission on Radiological Protection. That is a much more daunting task given that it will require removing cesium 137, an isotope that will remain radioactive for decades.


Trial cleanups have been delayed for months by the search for a storage site for enough contaminated dirt to fill 33 domed football stadiums. Even evacuated communities have refused to accept it.


And Tomoya Yamauchi, the radiation expert from Kobe University who performed tests in Fukushima City after extensive remediation efforts, found that radiation levels inside homes had dropped by only about 25 percent. That left parts of the city with levels of radiation four times higher than the recommended maximum exposure.


“We can only conclude that these efforts have so far been a failure,” he said.


Minamisoma, a small city whose center sits about 15 miles from the nuclear plant, is a good place to get a sense of the likely limitations of decontamination efforts.


The city has cleaned dozens of schools, parks and sports facilities in hopes of enticing back the 30,000 of its 70,000 residents who have yet to return since the accident. On a recent morning, a small army of bulldozers and dump trucks were resurfacing a high school soccer field and baseball diamond with a layer of reddish brown dirt. Workers buried the old topsoil in a deep hole in a corner of the soccer field. The crew’s overseer, Masahiro Sakura, said readings at the field had dropped substantially, but he remains anxious because many parts of the city were not expected to be decontaminated for at least two years.


These days, he lets his three young daughters outdoors only to go to school and play in a resurfaced park. “Is it realistic to live like this?” he asked.


The challenges are sure to be more intense inside the 12-mile zone, where radiation levels in some places have reached nearly 510 millisieverts a year, 25 times above the cutoff for evacuation.


Already, the proposed repatriation has opened rifts among those who have been displaced. The 11,500 displaced residents of Okuma — many of whom now live in rows of prefabricated homes 60 miles inland — are enduring just such a divide.


The mayor, Mr. Watanabe, has directed the town to draw up its own plan to return to its original location within three to five years by building a new town on farmland in Okuma’s less contaminated western edge.


Although Mr. Watanabe won a recent election, his challenger found significant support among residents with small children for his plan to relocate to a different part of Japan. Mitsue Ikeda, one supporter, said she would never go home, especially after a medical exam showed that her 8-year-old son, Yuma, had ingested cesium.


“It’s too dangerous,” Ms. Ikeda, 47, said. “How are we supposed to live, by wearing face masks all the time?”


She, like many other evacuees, berated the government, saying it was fixated on cleaning up to avoid paying compensation.


Many older residents, by contrast, said they should be allowed to return.


“Smoking cigarettes is more dangerous than radiation,” said Eiichi Tsukamoto, 70, who worked at the Daiichi plant for 40 years as a repairman. “We can make Okuma a model to the world of how to restore a community after a nuclear accident.”


But even Mr. Kodama, the radiation expert who supports a government cleanup, said such a victory would be hollow, and short-lived if young people did not return. He suggested that the government start rebuilding communities by rebuilding trust eroded over months of official evasion.


“Saving Fukushima requires not just money and effort, but also faith,” he said. “There is no point if only older people go back.”


This article has been revised to reflect the following correction:


Correction: December 9, 2011

An earlier version of this article said the evacuation zone covered more than 3 percent of Japan’s landmass; in fact it is the area contaminated above an international safety standard for the general public that covers roughly 3 percent of the country’s landmass.




  1. 後楽園ドーム球場(東京ドーム)のことではないと思いますよ。NYTの記事に東京ドームの大きさを載せても理解されません。文字通り、アメリカの一般的なドーム型のアメフト場の大きさで表現したものと思います。

  2. アメリカ読者に分かるようにフットボール場、と言っていると思いますが、元ネタは日本のマスコミの記事などによく出てくる、「後楽園ドーム」何杯分、という言及だと思いましたので、そのように注釈を入れました。

  3. いつも貴重な情報発信を有難うございます。

  4. どうぞ。これからもよろしくお願いいたします。

  5. 政府はこれまでの村落共同体をばらばらにすることなく、村単位、あるいは部落ごとの単位で、集団移住できる代わりの土地の斡旋をしなければならないと思う。幸いにして今、日本中に過疎化で悩んでいる農村地帯は全国にあり、選挙で1票の格差で問題となっている県がたくさんある。集団移住を機会に、新しい農業経営形態を採用することも可能になるかも知れません。明治時代1889年、奈良県十津川は十津川大水害により村落の大部分が壊滅状態になり、約2500人が北海道へ移住して、新十津川村を開拓した歴史があります。

  6. >国際安全基準を上回る汚染地域の面積が日本の陸地総面積の3%