Radioactivity in the jet stream.

Radiation level by altitude in Fukushima City, AprilThe Geophysical Institute at Fukushima University measured gamma and beta radiation at increasing altitude in April through August, 2011. They used a radiosonde (weather balloon) with a radiation measuring device on it to obtain the readings.

The first image is from April 2011, and shows increased beta readings at an altitude of 7-8 km. This is below the level of the jet stream. The second image is from August 27 and shows the beta level off the chart at the jet stream altitude of 9-12 km. Radiation level by altitude in Fukushima City, August We can see that the radionuclides had been rising in the atmosphere from April to August. There is also a significant amount of radioactivity up to a level of 63,000 feet. The maximum level on the chart is 20 cps, which is equivalent to 1200 cpm. This is in contrast to the April chart, which reached 500 cpm.

The third image indicates that the jet stream indeed was over Fukushima City on August 27. Jet stream over Fukushima City None of the scientific articles (that I have seen) that have discussed atmospheric dispersion model results, or measurements of Fukushima emissions, have incorporated this type of measurement, from weather balloons or airplanes. It is likely that a great deal of radioactivity is still in the jet stream, and will not completely come down to earth for years.

3 thoughts on “Radioactivity in the jet stream.

  1. good report. worried about flying on airliners. nothing on professional pilots rumour network. sure hate to be changing hepa filters on those planes. the net needs more on flying airliners. alaska airlines is getting squalk about uniforms being ichy & skin raches. enviroreporter had one video on flying to mich., some in japan. thank you

  2. Emissions from Fukushima Diiachi Present in the Tropopause and Jetstream

    http://nuclearhistory.wordpress.com/2013/03/27/12311/

    “Thanks very much for this information and for the information and source on your site. It is very important, it helps me immensely and it knocks on the head the uncertainty I have had about the transport vectors and reach.

    In my searches, the information I had found did not take away my uncertainty regarding the jet stream as a major vector. Your source does give certainty.”

    Thanks again, Paul. Also check out:

    http://optimalprediction.com/radioactivity-outside-the-jet-stream/
    http://optimalprediction.com/radiation-in-rain-not-going-away/
    http://optimalprediction.com/transfer-of-radionuclides-from-sea-to-atmosphere-and-land/

Leave a Reply

Your email address will not be published. Required fields are marked *