NHK: New estimate triples amount of radioactivity released from Fukushima reactors into sea

Published: September 8th, 2011 at 9:47 am ET


Radioactive release into sea estimated triple, NHK, September 8, 2011:

A group of Japanese researchers [from the Japan Atomic Energy Agency, Kyoto University and other institutes] say that a total of 15,000 terabecquerels of radioactive substances is estimated to have been released from the crippled Fukushima Daiichi nuclear power plant into the sea. […]

The combined amount of iodine-131 and cesium-137 is more than triple the figure of 4,720 terabecquerels earlier estimated by Tokyo Electric Power Company, the plant operator. The utility only calculated the radioactivity from substances released from the plant into the sea in April and May [the researchers also included radioactivity released from late March through April].

The researchers say the estimated amount of radioactivity includes a large amount that was first released into the air but entered the sea after coming down in the rain. […]

h/t Anonymous tip

Published: September 8th, 2011 at 9:47 am ET


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11 comments to NHK: New estimate triples amount of radioactivity released from Fukushima reactors into sea

  • theypoisonus

    short and sweet.

    If they (japanese govt. & tempco ) admit to 3+ times, it is more than that.


  • americancommntr

    If not mistaken, that would be 14 quadrillion becquerels.

  • Bobby1

    They are now admitting that the air contamination has polluted the ocean.

    Fish from the North Pacific far away from the ocean areas where Tepco dumped the radioactive water are now contaminated.

    • Bobby1

      Both the Cerea maps and the CTBTO radiation data show that the Aleutian islands were the hardest hit region outside of Japan.

      And much of the precipitation that fell there was in the form of snow, which is 5 times more radioactive than rain.

      “Westward Region includes the Kodiak archipelago, the north and south sides of the Alaska Peninsula (including Chignik, the Shumagin Islands, and Port Moller), and the Aleutian Islands. Dutch Harbor, the number one fishing port in the nation, in pounds landed, is situated in the Aleutian Islands. This region encompasses all Pacific Ocean waters extending south from the Kodiak Archipelago and west of the longitude of the eastern side of Cook Inlet, as well as Bering Sea waters east of the maritime boundary between Russia and the United States. The islands of St. Mathew and the Pribilofs, as well as the Chukchi-Beaufort seas, also fall within the Westward Region. Westward Region supports a diverse mix of shellfish and finfish fisheries, including the largest crab and Pacific cod fisheries in the state. Important salmon and herring fisheries occur throughout the coastal waters of the region. “

  • StillJill StillJill

    I still fear it is much worse. First, what about seepage? They are only talking about their ‘releases’. What about groundwater,…spill=through?
    And, they are speaking as if all the plume fell into the pacific–Oh contraire!(sp) Cough, cough

  • BreadAndButter BreadAndButter

    New Fuku pictures released by Tepco on September 6th:

    Just to prove that while continuing to poison the atmosphere, SOME cleaning has been done….

    • Steven Steven

      Just a quick scan of the photos reveals that they have apparently found the time to paint some large pipes (pic 1), completely replace an enormous diesel generator (pic 10 – yeah, right) brushed some seaweed off a cooling pump (pic 3) and parked some trucks and tyres in a row (pics 29 x3).

      Corium? What corium?

  • catweazel

    when i remember correctly the water in the first stairway photo had 500 millisievert/h. i wonder what happened to the massive amount of water, i wonder how they keep the stairway dry with the demolished roof, i wonder who cleaned the green slime.
    But maybe maybe all is in order and not as hard as it looks.

    what really frightens me is that the photos look as if they want to start fission again tomorrow……..
    i do wish the nuke industry all the very best and that their plants may live long and prosper (it is a selfish wish, not in their favour). but i also have a very solid feeling in my *ss that in the moment they start to produce electricity again in that plant a major quake will hit hard and finally.

    • kx kx

      it would be another TEPCO LIE that that site will produce electricity again in the next 30 years unless Aliens or God himself help. with the CURRENT tecnology maybe 25000 years

    • Steven Steven

      Nobody in authority has suggested since early March that Fukushima Daiichi would ever be operational again. Once the seawater flooded the RPV’s it was all over officially for that possibility, but as we know there was never going to be a chance of that once the meltdowns started.