Scientists: Plutonium released from Fukushima “is of radiological concern”; Reactor must be source, not spent fuel pool — Study: Plutonium found 120 km from plant; “Pu and non-natural uranium certainly increased in environment”

Published: April 21st, 2014 at 1:59 pm ET


Environmental Science & Technology (ACS Publications), Apr. 1, 2014: Airborne Plutonium and Non-Natural Uranium from the Fukushima DNPP Found at 120 km Distance a Few Days after Reactor Hydrogen Explosions — Plutonium (Pu) and non-natural uranium (U) originating from the Fukushima Daiichi Nuclear Power Plant (FDNPP) were identified in the atmosphere at 120 km distance from the FDNPP […] Comparing the time series of analytical data on Pu and U obtained in this study with previously reported data on Pu, U, and radioactive Cs, we concluded that Pu and non-natural U from the FDNPP were transported in the atmosphere directly over a 120 km distance by aerosol and wind within a few days after the reactor hydrogen explosions. Effective dose of Pu were calculated using the data of Pu: (130 ± 21) nBq/m3, obtained in this study. We found that the airborne Pu contributes only negligibly to the total dose at the time of the incident. However the analytical results show that the amount of Pu and non-natural U certainly increased in the environment after the incident.

Actinide Emissions from Nuclear Accidents: Recent and Coming Developments (pdf), Georg Steinhauser & Brett Rosenberg, Department of Environmental and Radiological Health Sciences, Colorado State University, 2014: The Fukushima nuclear accident will remain in public memory as one of the worst environmental disaster in recent years. […] plutonium and other transuranium elements have been emitted in smaller amounts and still remain the most understudied contaminants. […] we were able to detect trace amounts of reactor-derived plutonium in two vegetation samples from the vicinity (0.5 and 16 km distance) of the Fukushima Daiichi NPP. The characteristic 240Pu/239Pu atomic ratio […] proved that a nuclear reactor must have been the source of these contaminations. […] our results indicate a particulate release of plutonium which is of radiological concern upon incorporation.

See also: [intlink id=”facility-director-we-saw-fukushima-plutonium-out-in-the-new-mexico-desert-local-and-regional-contaminations-of-plutonium-in-the-environment-have-resulted” type=”post”]{{empty}}[/intlink]

And: [intlink id=”journal-aerosolized-plutonium-from-fukushima-detected-in-europe-spent-fuel-indicated” type=”post”]{{empty}}[/intlink]

Published: April 21st, 2014 at 1:59 pm ET


Related Posts

  1. NPR: Scientists test for Fukushima plutonium being transported in Pacific — Study: Plutonium particles found to have “high environmental mobility” — Expert: Fuel materials may be flowing from plant, “What is actually contained in releases?” (AUDIO) February 12, 2014
  2. Study: Plutonium from Fukushima went further than Chernobyl — Researchers ‘surprised’ their most plutonium-contaminated sample was from site farthest from Fukushima plant — Concern material is flowing into Pacific Ocean from land August 4, 2014
  3. New Studies on Mystery ‘Black Substances’ Released: Fuel core materials from Fukushima plant detected — Plutonium, Uranium-236, Curium discharged into environment likely in form of fine particles (PHOTO) March 7, 2014
  4. Study: Fukushima plutonium in playground 60 km from nuclear plant — “Proves that indeed Plutonium has been emitted by the accident” — Some “in the form of fuel fragments”? — Up to 14 Billion Bq of Pu-239 and-240 released (MAP) June 29, 2014
  5. Expert: Billions of pieces Fukushima nuclear fuel have spread pretty much everywhere — “It’s truly frightening… wherever there’s cesium, there’s plutonium” — Atomic bomb had one pound of uranium… Fukushima had hundreds of tons — TV: “Abundant quantities” of plutonium are being found (VIDEO) May 19, 2016

38 comments to Scientists: Plutonium released from Fukushima “is of radiological concern”; Reactor must be source, not spent fuel pool — Study: Plutonium found 120 km from plant; “Pu and non-natural uranium certainly increased in environment”

  • Ontological Ontological

    There was reports of Plutonium here along the Cali NV border and further east. Increase the parameters of your search, AGAIN you'll see! This bullshit flies to freely, this is after all pure spin. Sigh…The frigging reactor BLEW sky high, WITH Plutonium from MOX and how ever much had been 'bred' by the R3 unit. And it scattered WORLD WIDE. About time someone admits it is 'of radiological concern.'

    • Time Is Short Time Is Short

      Travelling the global jetstream at 275 mph. Circumnavigating the globe every 40 days.

      • seanmck66 seanmck66

        Does anyone here know of a way to determine where we are in relation to the "40-day cycle" at any given time?
        I imagine that I could count the days since the explosions and divide by 40, which would give the number of times it has circled the planet, but then figuring out a general geographical positioning of the, erm, "cloud," at any given point would still require some work – how far does it travel in the course of a day? (Circumference of the Earth divided by 40? Then divided by 24 to get an approximate hour-by-hour location?
        Would be much simpler if a resource already exists through someone else's creativity…

        • bf9 bf9

          I would think by now it's much closer to a blanket of scattered hot spots over a majority of the atmosphere. It's had three years to "disperse" around the upper layers while some of it has managed to stay right in the jet stream. Also remember, fallout from bomb testing in the upper atmosphere is probably reaching its peak deposition right about now too. I've wondered the very same thing sean, but I'd say it's kind of moot at this point.

          • seanmck66 seanmck66

            Thanks for the reply, bf9!! 🙂

          • J.

            I vaguely recall reading once that the Van Allen Belt around the planet resulted from atmospheric explosions of nuclear weapons. Before reading that, I'd gotten the impression from textbooks that it was a 'natural' EM field. Does anyone here know the physics of it? could the Fukushima disaster be influencing the VA Belt, and if so, what would the effects be? I've never read a word about this.


              @J.: it's a naturally occurring magnetic envelop, recently discovered to be composed of not one but actually three distinct layers. These layers form a gaseous flux that resonate with incoming solar/cosmic radiation, thereby 'capturing' the bulk of this incoming energy. While above ground nuclear testing has likely infused man-made radiation into the Van Allen radiation belt(s), it's likely this 'contribution' would be relatively negligible when compared with what's coming from the Sun.

              Back on the side…

            • yellowrain

              my post was a response to seanmck66

        • yellowrain

          I truly feel that mass has been defused considerably by now. Though still detectable. There is probably a track that somewhat on average follows the 40 degree north longitude around the earth. With the steam events off #3 reactor and there constant burning of debris and sludge in Japan we in the US are at risk most days for picking up a hot particle. IMHO

    • Fukushima Secret Nuclear Weapons Research- Plutonium Weapons Research – Breeder Reactor? via @AGreenRoad

  • Obvious Obvious

    Frightening how agencies get away with the nuclear PR lies and coercion.

  • dosdos dosdos

    This is another factor pointing toward a MOX meltdown detonation inside the base of reactor #3.

  • TepcoSievert TepcoSievert

    Does this tell us anything about the nature of the explosion in Unit 3 ? Can such dispersion take place even if, according to the official version, no criticality was involved?

  • Obvious Obvious

    Has there ever been confirmation or denial of the possible existence if a lab basement under, I think it was Unit 3…? If there was any weapons making going on on site, that'd explain a lot of what we witness.

    • There is no way they will admit to this, since it goes against their Constitution and it would lose the existing party large numbers of voters. It is all about looking like you are for peace, while underneath in secret you are double dealing and developing weapons of mass destruction, plans for war, selling war related products, etc.

      • We Not They Finally

        They hadn't a clue that Shinzo Abe was ALEADY a war mongerer? According to Yoichi Shimatsu (at least,) he not only comes from a notorious warm criminal family, but he personally arranged to have the MOX fuel brought into Japan through the Cheney cabal in Texas.

        • We Not They Finally

          AND… Abe is apparently trying to now CHANGE the Japanese constitution, that they can militarize to "defend" themselves. Defend themselves against what? Some provocation they created to set up a framework for "defense"?

  • pinksailmatt pinksailmatt

    So much for Socref's ranting and raving about no Pu KeV signature.

    I would venture a guess, that when a MOX reactor reaches a certain High temperature, criticality automatically takes place.

    • Pete

      His points were invalided multiple times, and he refused to provide any evidence to the contrary or disclose his supposed insider knowledge, typical pro-nuke.

      He was highly effective in disrupting the discourse, however, which I think was the ultimate goal, don't take the bait.

  • Nick

    Pu and non-natural atoms, elements de jour.

    Forget Iodine-131, Cesium 134/137, or Strontium-90.

    Since PU and non-natural Uranium are not very widely studied as to dispersal and effects in the biosphere, I suggest Japan be designated as a world science lab for learning, albeit slowly, about just what these babies DO to humans and other living creatures.

    Folks on the West Coast might also be eligible to partake in this study.

    Methinks fatigue will be a common symptom. So will low white blood cell counts, easy bruising, nosebleeds, and strange skin lesions.

    Stay tuned, this looks to one exciting study as folks double down and learn the secrets of Fukushima's legacy…. (sarc)

  • jec jec

    "our results indicate a particulate release of plutonium which is of radiological concern upon incorporation"-that means INGESTION..eating or breathing in the plutonium.

    Are you listening, oh great bosses at WIPP???

    PU is of radiological concern…if a person is involved as in getting internal dosage of the poisonous radioactive particles. I would LOVE to see the OSHA WISHA rules for WIPP..and how the workers sign away their lives. Does the company GUARREENTEE in writing the PU is NOT DANGEROUS??

    • jec jec

      Does DOE or EPA do the same for the public? They(DOE/EPA) are smoking dope if that is their theory…

  • 52Rockwell

    Nick I had unexplained rash beginning in December2013. I was riding a bicycle 8 mile a day to work Back In march and the whole year of 2011. I have easy bruising but no lethargy or low blood count since testing in January this year. The doctor said the bruising is a side effect of

  • razzz razzz

    Bunch of geniuses at Colorado State U working with grant money.

    Very vague representation of what they found. Did the nearby plant life or ground have more or less fallout? Did they find fallout in plant life or on it? Using the word 'incorporation' is a medical definition which I doubt they are qualified to use. Maybe the department of veterinary medicine can help them out there.

    Notice how they confuse Daiichi's blast(s?) with nuke bomb testing fallout, not sure what they feel is more dangerous or if they are making a general statement.

    "…Other spots revealed contamination with fallout plutonium from atmospheric nuclear explosions only. Although the activity concentrations were low, our results indicate a particulate release of plutonium which is of radiological concern upon incorporation…"

    • Cisco Cisco

      razzz…Coloradan's should know a lot about Plutonium, but they don't. One of the most highly radioactive states before Fukushima; now, Fuku and WIPP waste are leaving their mark there, too…bio-accumulation and bio-magnification.

      "Radioactive Contamination from the Rocky Flats Plant"

      A descent place to get sick. Generally good medical facilities and weed should mask some of the pain.

      • We Not They Finally

        Colorado apparently has one of the highest rates in the nation of multiple sclerosis. Not hard to figure the connection.

  • TheBigPicture TheBigPicture


    One speck of plutonium kills, so lets stop developing it.

    • unincredulous unincredulous

      We must develop it, or some evil regime will do it first…

      Someone might break into our homes and shoot us with a gun. Therefore, we should just blow our brains out before they do.

      In the local paper yesterday, the comics – The Wizard of Id, scientist says they developed a new stomach virus, and need someone to test it on. The wizard and the king suddenly win tickets to a cruise ship vacation. What was that all about? An awakening, a veiled threat? Remember Family Guy and the Boston Bombing stuff ?

      Idiocracy rules

  • yellowrain

    reactor 3 blew sky high. I saw it. They can call it whatever they want. particulate release are you kidding? That is the true secret you will never see numbers on. Ask yourself how many particulates are in (I'll be nice) 500 lbs? Nano size?

  • Future accidents?

    "Np from fission products. Once an analytical protocol for this separation is available, it will allow for a very rapid, robust and interference – free assessment of actinide emissions after possible
    – from Recent and Coming Developments, article

    I am just guessing, but their grant money is going to run out soon. 😉

  • Nick

    There will be more nuclear accidents.

    The entire ordeal has been one big, humongous, idiotic accident from the get go.

    Our species is too inept to have tried to tame the atom. There are those that say we have done quite well in that regard, but how do you reconcile that with the irradiated biosphere?

    Were our atmospheric bomb tests really that good?

    Did we need to boil water in the nuclear cauldrons?

    Did we need to weapon-ize our societies?

    Plutonium is a radiological concern ……period. Every single speck of it.

  • unincredulous unincredulous

    Don't worry, radiation is natural. We have lived with it all of our lives. We "evolved" with it. We have no reason to fear it.

    Our bodies are composed mostly of water and we have lived with water for generations and become immune to it, too. That's why we can't drown and tsunamis do not hurt us.

    The moon is actually made of blue cheese.