Study finds 12 millisievert average thyroid doses of INTERNAL radiation in Fukushima children — Gov’t had assured “the levels of such doses were zero” — Gov’t won’t notify parents of results

Published: July 11th, 2012 at 3:25 pm ET
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Subscription Only: Study finds lifetime thyroid doses of radiation in Fukushima children
Asahi Shimbun AJW
By YURI OIWA/ Staff Writer
July 11, 2012

Children in Fukushima Prefecture likely received thyroid gland doses of internal radiation, despite earlier government assurances that the levels of such doses were zero, according to an independent study. 

[...]

The findings run counter to the government’s assertion that they effectively received zero thyroid gland doses.

However, the government has no plans to notify the children’s parents of the latest analysis results, citing their large error margins and the fear of causing anxiety.

“Researchers derived them for scientific purposes,” a government source said. “We have no plan, now or in the future, to notify individuals of their doses.”

[...]

The team estimated the lifetime thyroid doses of the 1,080 children at 12 millisieverts on average and 42 millisieverts at the maximum.

[...]

Toward the end of March 2011, the Nuclear Safety Commission of Japan advised the Nuclear Emergency Response Headquarters to conduct additional research on children with high doses, but the headquarters rejected the proposal, citing the fear of causing anxiety.

Published: July 11th, 2012 at 3:25 pm ET
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24 comments to Study finds 12 millisievert average thyroid doses of INTERNAL radiation in Fukushima children — Gov’t had assured “the levels of such doses were zero” — Gov’t won’t notify parents of results

  • Radio VicFromOregon

    Hmmm…the objectivity of these medical researchers. My translation of what they are saying – "it's not my problem, i just do the testing, i shouldn't become emotionally involved"….


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  • Ivantheterrible111

    They want the children to get sick and die later, so they can deny it, as they have done from the beginning!


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  • jec jec

    By ENENEWS publishing this information and making it known, ANY PARENT whose child was tested should consider their child to be ONE OF THE HIGH DOSE CHILDREN..unless the government NOTIFIES them they are NOT. Its not to scare..its to allow for treatment. And this is just the thyroid part..from last year..likely. Am so sorry for the children and families.


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  • arclight arclight

    ■ Of the example locations considered in Fukushima prefecture, several are in the area 20–30 km from the site where characteristic effective doses in the first year, to all age groups, are estimated to be in the dose band of 10–50 mSv. The dominant pathway in these locations is estimated to be external dose from ground deposits but there are also contributions from the other exposure pathways. In these locations, only the first four months of exposure from external dose have been included as it has been assumed that relocation would have occurred at that time.
    ■ At other locations considered as examples in Fukushima prefecture, the characteristic effective doses in the first year, to all age groups, are estimated to be in the range 1−10 mSv. In these locations the major exposure pathways are external dose from ground deposition and ingestion doses.
    ■ In prefectures neighbouring Fukushima, characteristic effective doses in the first year, to all age groups, are estimated to be in the dose band of 0.1–10 mSv. This wider range of dose band for these neighbouring prefectures reflects the wide variation in deposition levels across these areas. The dominant pathway here is estimated to be external dose from ground deposits.
    ■ In other Japanese prefectures, characteristic effective doses in the first year, to all age groups, are estimated to be in the dose band of 0.1–1 mSv, with the dominant pathway being food ingestion.

    cont..


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    • arclight arclight

      ■ In countries neighbouring Japan, characteristic effective doses in the first year, to all age groups, are estimated to be less than 0.01 mSv, with the dominant pathway being ingestion of locally-produced food.
      ■ For the rest of the world, characteristic effective doses in the first year, to all age groups, are also estimated to be less than 0.01 mSv, and are usually far below this level. Again, the dominant pathway is ingestion of locally produced food.
      3.3.2 Estimated thyroid doses
      ■ For most of Fukushima prefecture, the estimated characteristic thyroid doses in the first year, to all age groups, are in the dose band of 10–100 mSv. The exception is Namie town in Futaba county, which lies partially within the 20km restricted area and the deliberate evacuation area (Figure 1). Dose estimates were calculated for the part of the town located in the area 20–30 km from the site, showing thyroid doses to infants within the dose band of 100−200 mSv. In several of the most affected locations, the doses were estimated only for the first four months, as relocation was assumed to have occurred at that time. It should be noted that a significant contributor to thyroid dose in some of these locations is inhalation of the early radioactive cloud. Earlier relocation, at for example two months, would not have reduced thyroid doses significantly. Such reduction would only have been obtained if early evacuation had occurred prior to the arrival of the radioactive cloud.
      cont..


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      • arclight arclight

        ■ In the locations in Fukushima prefecture that are further away from the site, the dominant contributor to thyroid dose is food ingestion .
        ■ In other Japanese prefectures the characteristic thyroid doses in the first year, to all age groups, are estimated to be in the dose band of 1–10 mSv. The dominant pathway here is estimated to be food ingestion .

        this from the who

        Preliminary Dose Estimation from the nuclear accident after the 2011 Great East Japan Earthquake and Tsunami

        "..The earthquake and tsunami in Japan on 11 March 2011 led to releases of radioactive material into the environment from the Fukushima Daiichi nuclear site. This report describes a preliminary estimate of radiation doses to the public resulting from this accident. These doses are assessed for different age groups in locations around the world, using assumptions described in the report.

        The dose assessment forms one part of the overall health risk assessment being carried out by WHO of the global impact of the accident at the Fukushima Daiichi nuclear power plant. The health risk assessment is the subject of a separate WHO report which will be published in Summer 2012…"

        http://whqlibdoc.who.int/publications/2012/9789241503662_eng.pdf

        i think this was released on the 25 june 2012

        did they get the dose estimates right?
        is that why the japanese will not release the actual data?


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        • arclight arclight

          also from the faqs section

          Q7. Are there any population groups not included in the Dose Assessment Report?

          "Estimates of doses within 20 km of the Fukushima site: most people in the area were rapidly evacuated. Some exposure may have occurred prior to evacuation but the assessment of this requires more precise data than those available to the panel.
          Estimates of doses received by workers: radiation doses received by workers at the site of the Fukushima Daiichi NPP were not assessed by the panel because the evaluation of occupational radiation exposure requires a different dosimetric approach from the one used for evaluating doses to members of the public. Information on workers’ exposures will be included in the Health Risk Assessment report…"

          http://www.who.int/ionizing_radiation/pub_meet/faqs_dose_estimation/en/index.html

          and this

          "..Q9. Where did the data come from and how were they used?

          For the dose estimates for Japan, the primary source of data was official reports published by the Government of Japan. Environmental monitoring data were not generally available for the rest of the world and so the expert panel used computer simulations to estimate doses outside Japan .."??

          lol! nuclear censorship hits the world health organisation…?


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          • arclight arclight

            they are going to use the residents of fukushima as guinea pigs.. NO EVACUATION!!

            Q12 WHAT NEXT?

            "The Fukushima prefecture initiated the Fukushima Health Survey that includes a ‘record of movement’ of residents from the time of the accident in March 2011 onwards. This initiative will provide information of individual dose assessments, and will assist in the implementation of health surveillance programs."


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            • Great post Arclight

              It is outrageous what is happening.

              People expect democratic governments to take care of their populations in emergency situations, particularly those caused by the state.

              Anyone who expects that now after the BP oil spill and Fukushima is DELUDED.


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        • I don't believe anything the WHO says. And there is still iodine-131 being released to this day. They're gonna invoke that "cold shutdown" bs.


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  • arclight arclight

    UPDATE 3-WHO releases mixed Fukushima radiation report
    Wed, May 23 2012

    "..Referring to the world's worst nuclear disaster at Chernobyl in Ukraine in 1986, the report said: "The experience of the Chernobyl accident was that about 30 percent of the lifetime dose was delivered during the first year and about 70 percent during the first 15 years.

    "On the basis of environmental activity concentration data, it can be expected that the fraction of the lifetime dose beyond the first year will be lower for the Fukushima Daiichi nuclear power plant accident than for the Chernobyl accident," it said…"

    http://www.reuters.com/article/2012/05/23/health-fukushima-idUSL5E8GN3UP20120523


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  • richard richard

    The report ends with "Toward the end of March 2011, the Nuclear Safety Commission of Japan advised the Nuclear Emergency Response Headquarters to conduct additional research on children with high doses, but the headquarters rejected the proposal, citing the fear of causing anxiety."

    "citing the fear of causing anxiety." – this is what these officials keep playing on. Causing anxisety alright. They are worried the anxiety will be directed at the nuker industry. Rightfully.

    This is the pitiful game the japanese government keep playing and they are criminals for it. Where are the charges being laid against these public servants? They are here to serve the people, not the yakuza nuke industry. I keep asking this question for over a year. It's a disgraceful world I live in. I'm so over all this. Damn their concerns about anxiety, it's all so depressing.


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  • pierre

    not the quality factual links provided regularly on this site, but this guy has legal action in mind and, for a change, he's not using his colourful language to motivate the sheep.

    http://www.youtube.com/watch?v=eB3I_BYbL0Y

    dont let the bastards get you down.


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  • arclight arclight

    Experts say the lifetime thyroid doses, which indicate impact on health, are low because none of the children exceeded the International Atomic Energy Agency's reference level for the intake of stable iodine tablets to block thyroid irradiation. The level is 50 millisieverts in the case of 1-year-old infants.

    u gotta hate the iaea.. always a qoute from them bozos… :(


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  • chrisk9

    Thanks arclight for the link to the WHO report, which is by far the best info we have gotten so far. It is a long and somethings technical report, but it is worth the time to read. And if you compare it to the Japanese report of this post you will see large differences.

    The WHO report extrapolates data from the information that was available, which was criminally meager. Air sample stations outside the plant were not working because of the tsunami and earthquake. In other words they needed an electrical source. This is the backbone of environmental safety in emergencies, and they all needed outside power? Stupid! The WHO report also did no work within the evacuation zone because it seems they were not allowed to enter by the Japanese government. And the report did not measure other isotopes besides iodine and cesium. They also do not measure any impact due to hot particles,whereas there was probably some impact for at least a small number of people. So although the report states that their estimates are conservative (stating higher dose estimates)I believe that it may have gone slightly in the other direction. But still a very good report, considering what we got before.
    The WHO report states the maximum thyroid dose to 1 year old as being up to 200 milliseverts which will certainly increase health effects and future cancers. Even the top limit of 100 milliseverts to 10 year old's is much more than I received once that got me barred from radiation zones at work.


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    • richard richard

      Hi chrisk9. I'm curious if you felt any effects, subtle even, to any degree when you had your limit dose? Was there any sensation you can describe. No problem if you can't, or there was nothing obvious. Smell, even?


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      • chrisk9

        No effect at all, no smell, nothing. While in the business never heard of anyone who felt or smelled anything. Often while working in a plant undergoing a lot of work and welding the smell of the welding would be pervasive even after going home it would kind of stick with you. And that could have been because there were minute traces of metal in your nose or hair.
        When some people say they smell something "radioactive" I think that is what is happening.


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