Study: Up to 47 quadrillion becquerels of cesium-137 released into Pacific from Fukushima — Nearly 50 times original Tepco estimate

Published: March 12th, 2013 at 12:39 pm ET
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Title: Does the Fukushima NPP disaster affect the caesium activity of North Atlantic Ocean fish?
Source: Biogeosciences Discussions
Authors: G. Kanisch and M.-O. Aust; Thünen Institute of Fisheries Ecology, Hamburg, Germany
Date Published: March 5, 2013
Emphasis Added

[...] On 11 March 2011, a Tsunami hit the Fukushima-Daiichi nuclear power plant (FDNPP), which caused the loss of cooling capacity in four of its six nuclear reactors and 25 led to the release a radionuclides into the environment. It is expected that between 6 and 47 PBq (1 PBq= 1015 Bq) of 137Cs (half-live 30.17 yr) was directly discharged into the Pacific Ocean (e.g. Bailly du Bois et al., 2012) in the aftermath of the tragedy. Due to the determined 134Cs : 137Cs ratio of around one, about the same amount of 134Cs (half-live 2.07 yr) was discharged into the Pacific. Initially, discharge was assumed to represent the larger fraction of total Cs-releases. Therefore, many researchers and TEPCO focussed [sic] on the determination and estimation of the behaviour of Cs in Pacific waters and its behaviour in the environment, especially the uptake by biota (e.g. Buesseler et al., 2011, 2012; Honda et al., 2012; Madigan et al., 2012; Behrens et al., 2012).

The explosions of units 1 to 4 of FD-NPP also released radionuclides into the atmosphere which were detectable around the world (e.g. Hsu et al., 2012; Stohl et al., 2012; Jakobs, 2011). From these investigations the wet and dry deposition of caesium isotopes in marine areas where German monitoring was carried out after the accident at FD-NPP occurred, which are the North Sea, the Baltic Sea, and the coastal West and East Greenland currents, were estimated to be between 0.1 and 100 Bqm−2. [...]

See also: 27 quadrillion becquerels of cesium-137 flowed into sea -- Doesn't include first week of crisis -- 30 times what Tepco claimed

Nearly all reports on this matter to date have used the 27.1 PBq (quadrillion) figure as the maximum direct cesium-137 release into ocean. Even yesterday’s informative report from Enformable comparing Chernobyl’s releases to Fukushima used the 27.1 PBq figure, rather than the 47 PBq mentioned above.

Published: March 12th, 2013 at 12:39 pm ET
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11 comments

Related Posts

  1. Russian Study: Fukushima released 100 quadrillion becquerels of cesium into atmosphere… In just ONE day — About equal to Chernobyl’s total release August 29, 2013
  2. New Journal Article: Fukushima may have already released 90 quadrillion becquerels of cesium-137 — Much more than Chernobyl’s 70 quadrillion becquerels January 8, 2014
  3. Japan Gov’t-funded Study: Fukushima has released up to 120 Quadrillion becquerels of radioactive cesium into North Pacific Ocean — Does not include amounts that fell on land — Exceeds Chernobyl total, which accounts for releases deposited on land AND ocean (MAP) June 30, 2014
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11 comments to Study: Up to 47 quadrillion becquerels of cesium-137 released into Pacific from Fukushima — Nearly 50 times original Tepco estimate

  • I am hoping this will become a world-wide mantra soon. A radical solution, and I wonder if it is do-able.

    We Must Make the Whole Planet a 'Nuclear Free Zone'
    by Karl Grossman
    http://www.commondreams.org/view/2013/03/11-9

    [Published on Monday, March 11, 2013 by Common Dreams]

    "With the second anniversary of the Fukushima Daiichi nuclear disaster this week, with North Korea having just threatened a “pre-emptive nuclear attack” against the United States and a U.S. senator saying this would result in “suicide” for North Korea, with Iran suspected of moving to build nuclear weapons, with the continuing spread of nuclear technology globally, the future looks precarious as to humankind and the atom.

    Can humanity at this rate make it through the 21st Century?

    We were only able to get through the 20th Century without a major nuclear weapons exchange­ without atomic doomsday ­by the skin of our teeth.

    With more nations having the ability to construct nuclear weapons­ and any country with a nuclear power facility has the materiel and trained personnel to make nuclear weapons­ the likelihood of this luck running out is high.

    The only realistic way to secure a future for the world without nuclear war is for the entire planet to become a nuclear-free zone­. No nuclear weapons, no nuclear power."
    ————————-
    – Yes, we must keep in mind that nuclear plants are dual-use technology: they're used to make nuclear bombs, and they are nuclear bombs…


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  • Time Is Short Time Is Short

    Dr Ian Fairlie at the Caldicott Symposium just said there was an explosion and massive fire in NPP #4 on March 12, around 6:00 AM, and another explosion on March 13 around 5:30 AM.

    As all the panelists have stated, we will never know the exact numbers of anything regarding any nuclear accident. It will all be estimates and averages.

    What is clear is the very real and immediate threat to our children, and future generations of all species of life on this planet, and the absolute refusal of government organizations to face this undeniable fact.

    There can be change when the mothers of this world get in the politician's faces, and we can only pray that it isn't too late by the time this happens.


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    • vital1

      "When the mothers of this world get in the politician's faces,"

      This handout/flyer was created to inform Mums and Dads, as to the seriousness of this Nuclear disaster, and get to them motivated. It has been distributed widely, and has been successful in waking up lots of people.

      It is very important to reach people outside of these net forums, otherwise the information is keep in a closed lop. It is only through greater community awareness that change will happen.

      Get the message out there on how serious the Fukushima nuclear disaster is
      quickly, and efficiently. You don’t need to explain anything just distribute the lifesaver.pdf or create your own, hand it out, mailbox it,
      or email it.

      http://technologypals.com.au/wp-content/uploads/2012/03/lifesaver.pdf


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  • weeman

    By there own words no safe dose of radiation, NRC WHO etc etc.
    I charge you to protect us and inform.


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  • KingofthePaupers

    Jct: Gee, they only underestimated the danger by 98%. Or, in other words, they managed to cover up 98% of the spill! Pretty competent at covering up! So should those estimated millions of eventual deaths understated by a factor of 50 too? Is that why the Gov shut down the fallout-detectors, so they wouldn't have to tell us the bad news, while failing to warn us to get out of the nuclear rain?


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  • TheBigPicture TheBigPicture

    Fukushima radiation is in Atlantic Ocean fish.


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  • japan guinea pig

    Lots of really good comments here today,Thanks one and all for your concern for the planet and its children.
    Whaw !!. To be honest im struggling to maintain hope that human-kind can solve the problems that it is creating. Every day there is more and more information coming out about the extent of the Fukushima disaster and the fact that its on-going/unresolved.
    I wonder how much more Mother nature can take ?.Mother nature is constantly struggling to put right man-made F-ups !.The question arises–How much more can she take and, Can human kind change enough….soon enough to save this planet ??.Im not a deeply religious person,but it seem like,only God can help us because,we dont seem to be able to help ourselves !.Keep up the good work enenewsers, lets get the information out there to facilitate a change in human-kinds current (hell bent) direction.Lets make a change.


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