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Nuclear melt, after effects

  1. Apr 9, 2014 #1
    Are there any other measurable danger other than the following


    Short term (short half life)

    I -131
    Do not react with air
    Forms aqueous solution with water


    Long term (long half life)

    Cs -137
    Forms cesium oxide with air, can be carried away by air
    Forms aqueous solution with water

    Sr - 90
    Forms strontium oxide with air, can carried away by air
    Forms strontium nitride with air, can carried away by air
    Forms aqueous solution with water


    Not sure if there are any other major concerns
     
  2. jcsd
  3. Apr 11, 2014 #2
    According to http://en.wikipedia.org/wiki/Fission_product_yield
    there a few more significant isotopes

    Sr-89 - half-life 50d
    Cs-134 - 2 years
    Pm-147 - 2.6 years (how volatile is it?)
    Sm-151 - 90 years (how volatile is it?)
    Kr-85 - 10 years (as a noble gas, it disperses quickly, doesn't stay in soils or living tissue)
     
  4. Apr 11, 2014 #3

    Astronuc

    User Avatar

    Staff: Mentor

    Pm and Sm would preferentially form oxides, as do the other rare earths.

    Cs is volatile, as is I, and Sr, is somewhat volatile and soluble.

    Kr-85 is a gas, so it could more readily escape containment.


    The key is yield and half-life. The OP states the 3 key radionuclides since they are persistent in the environment.

    See also - http://pbadupws.nrc.gov/docs/ML0410/ML041040063.pdf
     
    Last edited: Apr 12, 2014
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