Contamination level of plant drain spiked up 95 times much near the sea / Tepco “no spread to the sea”

Following up this article.. Radiation level in drain jumped up by 15 times after the Typhoon [URL]


The all β (including Strontium-90) density of the drain also increased near the outlet to the sea. This outlet is located outside of the port, so the contamination directly flows to the Pacific.

From reading Tepco’s data, the contamination was lower than the detectable level on 10/14/2013, when was before the Typhoon.

It picked up to be 19,000 Bq/m3 on 10/15/2013 and became 1,800,000 Bq/m3 on 10/17/2013, when was after the Typhoon.

This is the sampling location closest to the outlet to the sea, but Tepco claims all β density was lower than the detectable level in seawater around the drain outlet for some reason.



Couldn’t make time to get the Donation button back on by 10/14/2013. It should be reposted NEXT MONDAY. I will try.


Français :

La radioactivité des évacuations de la centrale augmente de 95 fois près de la mer -> Tepco : “Rien n’est parti en mer”


Article lié : Après le typhon, la radioactivité du canal multipliée par 15

La radioactivité β (dont le strontium 90) du canal est également montée près de son déversoir dans la mer. Ce déversoir est situé en dehors du port, donc la contamination s’écoule directement dans le Pacifique.

De la lecture des données de Tepco, la contamination était inférieure au niveau détectable le 14 octobre 2013, juste avant le typhon.
Elle passe à 19 000 Bq/m³ le 15 octobre pour atteindre 1 800 000 Bq/m³ (1,8 millions) le 17, juste après le typhon.
C’est le point d’échantillonnage le plus proche de la mer et Tepco affirme que la radioactivité β de l’eau de mer autour du déversoir est inférieure au niveau détectable.

Pas eu le temps de remettre les boutons sur les dons pour le 14 octobre. Ils devraient être de retour LUNDI PROCHAIN. Je vais essayer.

  1. The North Pacific Ocean is a dead, radioactive, trash dump.

    Life & Style By GREG RAY Oct. 18, 2013, 10 p.m. http www theherald (story/1848433/the-ocean-is-broken/?cs=12)
    The ocean is broken

    IT was the silence that made this voyage different from all of those before it. Not the absence of sound, exactly.The wind still whipped the sails and whistled in the rigging. The waves still sloshed against the fibreglass hull. And there were plenty of other noises: muffled thuds and bumps and scrapes as the boat knocked against pieces of debris. What was missing was the cries of the seabirds which, on all previous similar voyages, had surrounded the boat. The birds were missing because the fish were missing.

    Exactly 10 years before, when Newcastle yachtsman Ivan Macfadyen had sailed exactly the same course from Melbourne to Osaka, all he’d had to do to catch a fish from the ocean between Brisbane and Japan was throw out a baited line.

    The next leg of the long voyage was from Osaka to San Francisco and for most of that trip the desolation was tinged with nauseous horror and a degree of fear. “After we left Japan, it felt as if the ocean itself was dead,” Macfadyen said. “We hardly saw any living things. We saw one whale, sort of rolling helplessly on the surface with what looked like a big tumour on its head. It was pretty sickening. “I’ve done a lot of miles on the ocean in my life and I’m used to seeing turtles, dolphins, sharks and big flurries of feeding birds. But this time, for 3000 nautical miles there was nothing alive to be seen.”

  2. All those pdf’s are in Japaneese… google translate can help, but only very rudimentary. It would certainly help if you would add the links to the english versions of these texts on the TEPCO site. That would improve this marvelous and interesting site very indeed.

  3. Satoru Tanaka said …

    Satoru Tanaka, University of Tokyo professor, head of the Atomic Energy Society of Japan, and ONE of the FDNPP designers said …

    A lot of inaccurate, stupid stuff, IMHO

    National – by Jun Hongo Staff Writer – Oct 19, 2013 LINK – http www japantimes co jp/ (news/2013/10/19/national/fukushima-2020-will-japan-be-able-to-keep-the-nuclear-situation-under-control)

    University of Tokyo professor Satoru Tanaka said.

    In June 2011, Tanaka was named head of the Atomic Energy Society of Japan, which boasts a membership of 7,000 nuclear experts nationwide. He was involved in designing the Fukushima No. 1 nuclear power plant, and issued apologies after the crisis for not being able to handle the calamity better.

    When asked about the ongoing problems hampering the cleanup, Tanaka noted that none of the proposed solutions had ever been successfully implemented anywhere else in the world on such a massive scale.

    “The whole process will be trial and error, and then fixing the error and trying again. It’s the only way things will move forward,” Tanaka said. “It is crucial that everyone involved anticipate what may go wrong and be ready to implement countermeasures quickly.”

    Tanaka of the University of Tokyo went further, saying it was virtually senseless to debate whether Abe’s claim that “the situation is under control” is true.

    And he agreed that at least in terms of hosting the Olympics, the nuclear plant posed no obvious risk to Tokyo.

    “Look around, people are living in the city without any serious risk today,” Tanaka said.

    “Trying hard to convince the world that Japan is safe isn’t enough,” he said.

    “What counts now is that the government makes it easier for everyone to understand — in tangible numbers — that it is, in fact, safe,” Tanaka said.

    “For example, we need to explain the leaks more clearly to the public and what it means. That is the responsibility of the government now” as Japan gears up for 2020, Tanaka said.

    1. I have (casually) reviewed the (English Translation) documents of the Atomic Energy Society of Japan. The reported statements of Satoru Tanaka, do not appear to reflect the content, tone or sentiment of those documents.

      http www aesj or jp/en/

      Was Tanaka on the ‘crack-team’ that selected the FDNPP elevation and/or seawall height?

      Or the seismic calculations? Or the groundwater diversion systems? Or the MOX uprate team?

      … Or was that the ‘Smoking Crack Team?

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About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.


October 2013