Fukushima decommissioning made 'significant progress': IAEA

February 17, 2015 by Miwa Suzuki
Team leader Juan Carlos Lentijo, International Atomic Energy Agency Director of Nuclear Fuel Cycle and Waste Technology, speaks during a press conference at the Foreign Press Center in Tokyo on February 17, 2015

Japan has made "significant progress" in cleaning up the crippled Fukushima nuclear plant, a UN review mission said Tuesday as it again advised the country to consider discharging treated water into the sea.

"Japan has made significant progress since our previous missions" in 2013, said Juan Carlos Lentijo, who led a review mission from the International Atomic Energy Agency.

"The situation on the site has improved—progressive clean-up has led to reduced radiation levels in many parts of the site," he said in a statement as the agency ended a third mission.

The 15-strong IAEA team has been in Japan since last week to examine efforts by Tokyo Electric Power (TEPCO) to clean up the site, where reactors were sent into meltdown by a huge tsunami that crashed ashore in March 2011.

He called the successful removal of spent fuel rods from a storage pool a "milestone" and praised other efforts such as improved measures to clean .

But the mission leader warned the situation "remains very complex" over the long term due to an increasing amount of contaminated water, the need to remove highly radioactive materials and the persistent ingress of groundwater.

Disposing of the thousands of tonnes of water which was used to cool reactors or polluted by other radioactive material is a major headache for TEPCO.

At present huge storage tanks are being used but there is no permanent fix.

This handout picture released by International Atomic Energy Agency on February 17, 2015 shows a member of the IAEA mission team inspecting TEPCO's Fukushima Daiichi Nuclear Power Station in Okuma, Fukushima prefecture

The mission urged Japan to come up with a more "sustainable solution" and advised that it consider discharging treated water into the sea.

"The site is fortunately big but the space could run out if the situation continues for a long time," Lentijo told reporters.

While noting the UN agency was not advocating this particular measure, the team leader said controlled discharge was "something that is happening every day worldwide in most " and had negligible impact on the environment.

Most experts agree that the water will eventually have to be released into the ocean after being scoured of its most harmful contaminants, but local fishermen, neighbouring countries and environmental groups all oppose the idea.

The roadmap towards the decommissioning of the Fukushima plant envisages a process that is likely to last three or four decades.

In its preliminary report issued Tuesday the IAEA also said it "strongly encourages TEPCO ... to reinforce safety leadership and safety culture" at the plant, where some 7,000 workers are engaged.

One man died there in January after falling into a tank.

"There is still some room to enhance this interaction between radiation safety and labour safety through more integrated plans," Lentijo said.

Explore further: IAEA to advise Japan on Fukushima clean-up

Related Stories

IAEA to advise Japan on Fukushima clean-up

October 14, 2013

Experts from the International Atomic Energy Agency met Japanese officials Monday as part of a mission to assess clean-up efforts at the crippled Fukushima nuclear power plant.

Storm caused radioactive leaks at Fukushima: operator

October 21, 2013

Heavy rain at the Fukushima nuclear plant caused a leak of radioactive water containing a cancer-causing isotope, possibly into the sea, its operator said Monday, as a typhoon approaching Japan threatened further downpours.

UN atomic agency urges Fukushima safety improvements

April 22, 2013

The International Atomic Energy Agency on Monday called on the operator of Japan's crippled Fukushima nuclear plant to improve "essential systems" as it struggles to deal with leaks and power cuts.

Fukushima water decontamination system down again

March 25, 2014

The operator of Japan's crippled Fukushima nuclear plant said Tuesday it had shut down a key decontamination system used to clean radiation-tainted water, just hours after it came back online.

Recommended for you

Forget oil, Russia goes crazy for cryptocurrency

August 16, 2017

Standing in a warehouse in a Moscow suburb, Dmitry Marinichev tries to speak over the deafening hum of hundreds of computers stacked on shelves hard at work mining for crypto money.

Researchers clarify mystery about proposed battery material

August 15, 2017

Battery researchers agree that one of the most promising possibilities for future battery technology is the lithium-air (or lithium-oxygen) battery, which could provide three times as much power for a given weight as today's ...

Signs of distracted driving—pounding heart, sweaty nose

August 15, 2017

Distracted driving—texting or absent-mindedness—claims thousands of lives a year. Researchers from the University of Houston and the Texas A&M Transportation Institute have produced an extensive dataset examining how ...

1 comment

Adjust slider to filter visible comments by rank

Display comments: newest first

not rated yet Feb 18, 2015
This is all for show, folks. The three former reactors are now molten blobs of intensely-radioactive metal and whatever. We cannot even see them, because they are too radioactive to view, even with robots, because the radiation kills the instruments.

They leak hundreds of tons of radioactive water into the ocean daily, and TEPCO has no way to stop it. What the government and the company and the Yakuza are doing is a major crime.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.