Head Researcher: Boulder, Colorado a “hot spot” for Fukushima fallout — None of their other US or Canadian samples came close to Boulder’s contamination, except Portland which was even higher

Published: April 6th, 2012 at 12:47 pm ET


Title: Kaltofen’s soil measurement 100X UCB’s? – 296 becquerel/kg?
Source: UC Berkeley Department of Nuclear Engineering Forum
Date: April 5, 2012

Submitted 2012-04-05 19:51 PT

My group measured soil, air filter and dust samples from Washington, Oregon, California, and British Columbia. This particular soil sample, with 8 pCi/g of radiocesium, was our highest North American result. It came from a site on the outskirts of Portland, OR. The next highest result came from a site near Boulder, CO. Except for followup samples near these two sites, no other US or Canadian samples came close to the levels of radiocesium in these “hot spots.” Given the nature of radioactive fallout, this is an expected result. Both hot spots are likely due to rainouts that took place during March or April 2011. A recent study by the USGS, “Fission Products in National Atmospheric Deposition Program—Wet Deposition Samples Prior to and Following the Fukushima Dai-Ichi Nuclear Power Plant Incident, March 8–April 5, 2011”, found remarkably similar results. The USGS study was more detailed, (and more with a much bigger budget), and found evidence of rainouts at Portland and Boulder. When you collect a lot of samples, some are bound to be much higher than the average.

Marco Kaltofen

This comment appears consistent with Kaltofen’s communication style and past statements

Read the report here

See also:

  • [intlink id=”radiation-precautions-areas-seattle-vancouver-portland-need-wash-shoes-video” type=”post”]{{empty}}[/intlink]
  • [intlink id=”gundersen-if-in-oregon-wash-calif-you-need-to-demand-officials-test-how-fukushima-fallout-has-affected-rivers-and-fish-significant-radiation-hit-west-coast-and-settled-in-on-cascades-video” type=”post”]{{empty}}[/intlink]
  • [intlink id=”expert-canada-statistically-meaningful-increase-cancer-fukushima-west-coast-after-japan-radioactive-area-cascades-portland-cesium-100-bqm-video” type=”post”]{{empty}}[/intlink]
  • [intlink id=”university-researcher-topsoil-8000-pcikg-cesium-fukushima-10000-higher-highest-levels-found-uc-berkeley” type=”post”]{{empty}}[/intlink]
Published: April 6th, 2012 at 12:47 pm ET


Related Posts

  1. University Researcher: Portland-area topsoil with up to 8,000 pCi/kg of cesium from Fukushima — Over 10,000% higher than highest levels found by UC Berkeley November 1, 2011
  2. Canadian University Scientist: Test seafood for Fukushima contamination — Continuous inputs for 2 years and counting will lead to ample opportunity for re-concentrating up food chain — Simply not enough being done on this side of Pacific August 22, 2013
  3. NRC email on potential contamination of Alaska waters from Fukushima radiation January 11, 2012
  4. Nuclear Researcher: Mutant microorganisms thrived in melted fuel at Three Mile Island — “Sounds like something you’d see on Star Trek” says host (VIDEO) February 2, 2012
  5. National Geographic: 3 years for contamination to reach U.S. coast from Fukushima, scientist estimates August 7, 2013

23 comments to Head Researcher: Boulder, Colorado a “hot spot” for Fukushima fallout — None of their other US or Canadian samples came close to Boulder’s contamination, except Portland which was even higher

  • ruth

    It was previously reported that Portland got the highest Iodine and now also cesium with a half life of 2,300,000 years. What else came down in the rain?

    • sandman

      The half life of the longest lasting isotope of cesium is 30 years. Not 2 million 3 hundred thousand years. Good grief.

      • Bob Hardin Bob Hardin

        Cesium 135 has a half-life of about 2.3 million years.

        • sandman

          Thanks, Bob, I stand corrected. Her statement is still misleading, though. From Wiki:

          "Caesium-135 is a mildly radioactive isotope of caesium, undergoing low-energy beta decay to barium-135 with a half-life of 2.3 million years." "The low decay energy, lack of gamma radiation, and long half-life of 135Cs make this isotope much less hazardous than 137Cs or 134Cs." (Half lives of 30 years and 2 years, respectively.

          • Clarification: Half-life vs HAZARDOUS to LIFE

            The term half-life can be misleading to many. Just my personal pet peeve. It's true that in the case of cesium-137 the decay rate, also referred to as half-life, is 30 years.

            The calculation for HAZARDOUS to LIFE is the IMPORTANT number to note:

            (decay rate) x 10 = (HAZARDOUS to LIFE) time span

            cesium-134 Hazardous to Life = 20 years
            cesium-137 Hazardous to Life = 300 years

          • eatliesndie eatliesndie

            a beta emitter in your lung is less dangerous than……….

    • Plutonium and 93+ other nasty long-lived radioactive isotopes

    • What else came down in the rain?
      They won't tell you, ENE readers do !

      • gerryhiles

        You can "rest"! assured that iodine and cesium are 'just' markers for all or most other radioactive isotopes, which are harder to detect.

        Considering that this fall-out is probably from the early explosion at #3, it's possible that plutonium is in the mix.

  • Bobby1

    The Longmont, CO radiation data that anne posts is from a site near Boulder:


    It is typically very high, and it has been going up lately. Longmont is also near Denver, which had an 11% increase in mortality in 2011:


    • Dr. Anne Lee Tomlinson Maziar anne

      Longmont is also not that far from Fort Saint Vrain Nuclear Power Plant which was decommissioned after only one year. All the fuel is still there being AIR COOLED. I have been thinking that maybe at night there are releases of the radioactive air. It should blow east, but when there is rain or snow it comes from an upslope wind and circles around back towards the mountains.

      The wife of someone who used to work at Rocky Flats as an air tester told me around 1970 that there are uranium tailings in the foothills in Boulder around Canyon Blvd.

  • Whoopie Whoopie

    http://www.tri-cityherald.com/2012/04/05/1894001/occupy-protesters-bare-breasts.html Just thought I'd let you know, they are still taking comments at Occupy. Took Nap now off to take my SOAK TY SJ!

  • TheBigPicture TheBigPicture

    The more we look, the more radiated hot-spots we'll find in the U.S.A.

  • Dr. Anne Lee Tomlinson Maziar anne

    Please see my comments in the General Discussion Thread as to why and how radioactive fallout from Fukushima is being fast-tracked to Boulder, CO.

  • isogoodhumans

    I can't see the list of samples. Boulder is #1, who is #2, #3 etc

  • patriot9878

    How can they know the half life of 1,000 years or whatever? I mean I don't think they can know a CD will last forever. This stuff is so dangerous and we have 500 nuclear power plants and they are building more, but if they had only grown hemp they would never have to have nuclear power plants. These things were created because big business didn't want to lose money to hemp. It's time to close the nuke plants and grow hemp

  • patriot9878

    he USA when the Israelis bombed Bali you notice the FBI was right there involved in something, because they knew who had commiited that crime. They must have gone to cover it up. But something as serious as this, but nobody seems to care. The Russians covered their nuclear accident with a dome and the Japa are going to have to do the same.

  • alasanon

    They never measure Strontiums, of course…. It's one of the most common, fastest-traveling radioisotopes in nuclear fallout, per studies of bomb testing.

    I'm so ready to just have them lay it out–the facts. Where is the EPA??!! Are they on extended vacation, permanently??!