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Study says Fukushima radioactive water continues to flow into sea

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Continues to flow into the ocean?

b-b-but we were assured by the dear leader during the Olympic bid process that it was all under control and contained within the port.

2 ( +7 / -5 )

The data released by TEPCO shows that the average amount of radiation released by the number 1 thorough 4 reactors every March amounted to

3.4 million becquerels per hour in 2012,

2.5 million becquerels per hour in 2013,

1.3 million becquerels per hour in 2014,

1.2 million becquerels per hour in 2015.

Following a review of the assessment methods,

the figures stood at 270,000 becquerels per hour in 2016,

25,000 becquerels per hour in 2017,

and 130,000 becquerels per hour in January 2018.

While the number has increased this year compared to 2017, TEPCO says it is within the range of variation and maintains that the total level is continuing to drop.

8 ( +9 / -1 )

TEPCO might say something but I doubt many people believe them any longer.

4 ( +6 / -2 )

The professor is shown measuring ocean water 8 km south of the reactor but not 8km north, with no explanation for this seemingly one-sided study. I wondered why. The following map shows the Oyashio current carrying cold water southwards off Fukushima, which could go some way to explain this.

https://www.accuweather.com/en/weather-news/japan-ocean-currents-and-the-n/47719

2 ( +2 / -0 )

Professor Micio Aoyama mentions water is being used to cool triple meltdowns at Fukushima Daiichi. Failing to mention 265,000,000 kilograms of corium settling at bottom of breached Units 1,2, and 3 Primary Containment vessels. Primary Containment vessels are 7 meters thick walls of steel and cement due to explosion during meltdowntheir walls are now cracked. The breaches of containment vessels are shown in Muon Energy Location Technology (MELT) images from 2016. The aquifer surrounding Fukushima Daiichi Nuclear Power Station is flowing directly into the breached 7 meter thick Primary Containment Vessels and out after absorbing radiation directly from contact with 265,000,000 kilograms of corium. NOTE seven years since Nuclear explosions and meltdown and not one gram of corium has been removed. Fukushima fishermen stand and ask when will corium be removed so radioactive water will stop contamination of ocean.

2 ( +4 / -2 )

Soooo glad we spent all that money on the Impenetrable Ice Wall, which every expert consulted said would not work.

These are good days to be in the brown envelope industry.

3 ( +5 / -2 )

Christopher O'Loughlin

seven years since Nuclear explosions and meltdown and not one gram of corium has been removed. 

There is no knowledge or own techniques to remove the corium and TEPCO still can't say if that will be achieved. It will involve the use of robots but the radiation levels inside the reactors are 500 SIEVERTS per hour which quickly destroy the robots. Before the corium in reactors 1-3 can be removed first the spend fuel from the cooling pools 1-3 must happen first. That too must be by using remote control equipment.

265,000,000 kilograms of corium

230,000 tons seems like an excessive figure. You have given several different figures for the amount of corium and the exact amount isn't known since the melted fuel rods also include other materials like metals and concrete. From the pervious photos taken inside the reactors, estimated combined 600 metric tons of fuel and debris in the three melted reactors. 

 Primary Containment vessels are 7 meters thick walls of steel and cement due to explosion during meltdowntheir walls are now cracked. 

Yes they have been cracked since the time of the explosions so cooling water leaks from them into the basements and further underground also leaks into the basement which is collected and filtered but some still escapes out into the sea. The ice wall works better than no ice wall although the idea of using wells might have been better and cheaper.

Guess within 40 years they might achieve to remove the corium.

0 ( +2 / -2 )

Also they have continued to pump up the basement water and pass back it through filtration systems which remove most of the nasty stuff, except for Tritium, the removal of which has so far baffled scientists apparently.

0 ( +1 / -1 )

"It can be assumed that there is a path from the complex to the ocean" through which contaminated water flows, Aoyama said, " highlighting the reason Aoyama san didn't become a rocket scientist.

4 ( +4 / -0 )

Wasn't this the purpose of the original concept to locate the power station by the beach? The run-off of contaminated materials into the ocean is surely the "cheapest" way of "doing business" while the cost of any contingent clean-up can be covered by shaking down the taxpayers whom their government can compel to cough up for such "externalities". To borrow a phrase from the lachrymose "Love Story", capitalism means never having to say you're sorry, and you can laugh all the way to the bank when "socialism for the rich" guarantees that you are too big to fail.

4 ( +4 / -0 )

It has always been a question to me, ever since the idea of an ice wall was was put forward and hope I get the answer to this. They can make frozen wall, but they can't just freeze the the radioactive water in these containers?

0 ( +0 / -0 )

Derek Grebe - Soooo glad we spent all that money on the Impenetrable Ice Wall, which every expert consulted said would not work.

This is how Japan works. You don't have to actually be doing something productive as long as it looks like you are doing something productive.

2 ( +3 / -1 )

No wonder the Thai's didnt quite like the idea of testing out Japanese seafood from Fukushima....

0 ( +1 / -1 )

mmwkdw

No wonder the Thai's didnt quite like the idea of testing out Japanese seafood from Fukushima....

The Bangkok post. Mar 13 2018

Fukushima fish get clean bill of health 

Authorities have intercepted fish stocks imported from Fukushima in Japan for inspection but have not yet found any harmful traces of radioactive substances in products from this nuclear accident-hit prefecture.

https://www.bangkokpost.com/news/general/1427035/fukushima-fish-get-clean-bill-of-health.

1 ( +1 / -0 )

Zichi: 2 billion Becquerels per day is 83 million Bq per hour.

If it was 2 billion Bq per year that would be 230000 Bq per hour.

0 ( +0 / -0 )

Scote

The figures I quoted are the ones given by TEPCO.

https://www3.nhk.or.jp/nhkworld/nhknewsline/backstories/fukushimadaiichinuclear/

1 ( +1 / -0 )

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