Over 20 microsieverts per hour radiation dose now being measured in Futaba (MAP)

Published: September 21st, 2011 at 7:01 am ET


National real-time radiation dose map, atmc.jp, September 21, 2011:

20.3 microsieverts per hour detected in Futaba-cho Yamada on September 21 at 5pm local time:

SOURCE: atmc.jp

Distance from Fukushima Daiichi:

SOURCE: Google Maps

Chart showing elevated radiation levels in the area:

SOURCE: atmc.jp

h/t mono

Published: September 21st, 2011 at 7:01 am ET


Related Posts

  1. Photo: 400+ microsieverts per hour at elementary school 60 kilometers from Fukushima Daiichi September 12, 2012
  2. 368 microsieverts/hour detected in Futaba-machi, 4 km west of plant September 2, 2011
  3. Clear spike in radiation measured across Japan on September 21 (CHARTS) September 27, 2011
  4. ABC reporter: “We did find some rather high readings and I have to say of up towards 20 microsieverts per hour” just this morning 40 km from meltdowns (AUDIO) October 13, 2011
  5. Mainichi: 105 microsieverts per hour found outside no-entry zone (MAP) September 2, 2011

17 comments to Over 20 microsieverts per hour radiation dose now being measured in Futaba (MAP)

  • Steven Steven

    That seems like quite a dangerous level, is it even ‘legal’? I’ve been largely ignoring the numbers for several reasons; for one thing, the industry itself formulated the measuring system, so I just don’t trust it. Secondly there are so many different threats in an accidental radioactive release, and it seems to me they only measure specific threats/isotopes thereby leaving the way open to minimisation of the threat.

    Pity they don’t make a detector that monitors all the various radiation and reads out something like this:

    0 – low 19th century level/safe
    1 – normal 21st century level/unsafe
    3 – elevated.. leave the area/unsafe
    4 – high.. leave the country/very unsafe
    5 – extreme.. leave the planet/never return

    • Whoopie Whoopie

      What a great idea Steven. Simple and easy to understand. EVACUATE TODAY!

    • StPaulScout StPaulScout

      An older unit for the equivalent dose, is the rem,[3] still often used in the United States. One sievert is equal to 100 rem:

      1 rem = 0.01 Sv = 10 mSv
      1 mrem = 0.01 mSv = 10 μSv
      1 Sv = 100 rem
      1 mSv = 100 mrem = 0.1 rem
      1 μSv = 0.1 mrem
      The conventional units for its time derivative is mSv/h.

      [edit] Symptom benchmarksSymptoms of acute radiation (dose received within one day):[4]

      0 – 0.25 Sv (0 – 250 mSv): None

      0.25 – 1 Sv (250 – 1000 mSv): Some people feel nausea and loss of appetite; bone marrow, lymph nodes, spleen damaged.

      1 – 3 Sv (1000 – 3000 mSv): Mild to severe nausea, loss of appetite, infection; more severe bone marrow, lymph node, spleen damage; recovery probable, not assured.

      3 – 6 Sv (3000 – 6000 mSv): Severe nausea, loss of appetite; hemorrhaging, infection, diarrhea, peeling of skin, sterility; death if untreated.

      6 – 10 Sv (6000 – 10000 mSv): Above symptoms plus central nervous system impairment; death expected.

      Above 10 Sv (10000 mSv): Incapacitation and death.


      “Children In Japan Purposely Killed by Japanese Govt- Nuclear Radiation Fallout Fukushima Chernobyl” ?


      Professor Busby has a foundation for children of Fukushima, please stand with him as he is being attacked well organized blogs in Japan that are strangely pro industry and Gov over children-Japans Future…

  • shaktasna999

    Yep Stephen has the right idea. How are they going to spin this?

  • Children as waste disposal

    Posted by Mochizuki on September 21st, 2011

    “You are making the children waste disposal!”

    A mother yelled at the mayor of Yokohama city,Hayashi Fumiko.

    Yokohama city government held an emergency press conference last weekend to detect hot spots around the city center.

    The highest figure was over 40,000 Bq/kg,which was measured from dirt beside a …


  • acid Lab acid Lab

    over six thousand miles away they’re getting 13 microsieverts per hour every time it rains in st louis.


    • Ever hear of the jet stream? Or do you believe all rad pollution magically stays local? Benefit of the doubt says too many bananas in the troll Lab for breakfast.

      • acid Lab acid Lab

        have i ever heard of the jet stream? you mean that thing the united states air force discovered in wwii as B-29 bombers attempted to hit the japanese home islands? that jet stream?

        never heard of it.

        next you’re going to tell us that the jet stream “concentrates” radiation.


        btw, i’m a shill… not a troll.

        • Steven Steven

          @ acid Lab – any transport system has the capability to concentrate… it’s what transport systems do. The confusion over this usually occurs in failing to consider that the concentration happens over time. It’s not dissimilar to a flotsam point on a river bank, or gold rich points for that matter.

          The local conditions cause heavy deposits, and over time the area becomes ‘rich’ in the deposited material. Thus the ‘hot spots’ of radiation around the globe.

          • Elenin Velikovsky Elenin Velikovsky

            It’s interestin’, these global wind-patterns.
            The hurricane-season of West African microbes
            transported to the Caribbean, and the Americas,
            they say that previously unexpected heavy organisms
            can sail along with high-level winds, depositing here.
            The Wretched Refuse from that Teeming Shore, etc.

          • acid Lab acid Lab


            of course transport/precipitation events (in all forms) have the potential to produce concentrations, but i’m talking gross sense of proportion here.

            a 13 microsievert/hr reading 5km from the fuku accident site would be alarming in of itself. but if such a reading occurred at a site 30,000ft up, 6,500 MILES horizontal, and then 30,000ft back down again would be absolutely shocking.

            And to attribute this to the magical concentrating power of the jet stream is beyond laughable.

          • Steven Steven

            @ acid Lab

            “to attribute this to the magical concentrating power of the jet stream is beyond laughable.”

            Not over time, you are making the common error of ignoring the accumulation factor which applies under specific conditions in certain places. Big fan of entropy, perchance?

          • acid Lab acid Lab


            “not over time”

            lmao… it would take many years of “time” to get the concentrations potrblog is reporting.

            there’s no other way… unless, of course, you’re willing to provide a valid model/theory which explains such extraordinary concentrations. i’m assuming you have one. otherwise, why would you make such nonsensical assertions?

            i’ll check back for your answer.

  • StPaulScout StPaulScout

    There is a 1000 fold difference between micro (the smaller) and milli (the larger)

    So, 0.7 micro is 0.0007 milli

  • Elenin Velikovsky Elenin Velikovsky

    A thousand micros makes a Milli.
    This headline says 20 micros per hour.
    Was that only a spike? the chart on the face shows
    only 17.984 at 7pm. for that hour.
    so, in 50 hours, if this is a constant rate, we have
    accumulated one Milli. 500 hours: 10 Milli,
    5000 hours: 100 Milli…etc.
    Of course, it’s not constant, and actual kids on
    the actual playgrounds of Futaba are breathing
    the sludge-burning fumes, and eating rad foods,
    and tromping around, splashing in puddles.
    Remember Pink Floyd’s, “The Wall”?…Junior
    picks up a dying Rat and cuddles with it for a day.
    Junior Has a Fever.
    Comfortably Numb.
    Poor cute little bright little Kids.

  • arclight arclight

    the two ibraki measurements shows within the normal background range?? if a bit on the high side…..
    they need to be testing these areas thouroughly with more tests!!…small sample tests like these arent good enough! :/