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Nuclear Waste

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Nuclear Waste Nuclear Waste Policy Act of 1982 established a timetable for choosing & preparing sites for deep underground disposal for high level waste. – PowerPoint PPT presentation

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Title: Nuclear Waste


1
Nuclear Waste
  • Nuclear Waste Policy Act of 1982 established a
    timetable for choosing preparing sites for deep
    underground disposal for high level waste. Mined
    Geologic Disposal
  • Vitrification mixing of liquid high level waste
    with molten glass

2
Figure 19.9 Diagram for the tentative plan for
deep underground isolation of nuclear waste.
3
Nuclear Waste
  • 1998 WIPP (Waste Isolation Pilot Plant) was
    issued a license to receive waste from the
    military
  • Yucca Mountain has been studied as a site for 20
    years for the high level waste generated at power
    plants

4
Effects of Radiation
  • Somatic damage damage to the organism resulting
    in sickness or death
  • Genetic damage damage to the genetic machinery
    of reproductive cells creating problems affecting
    offspring.

5
Factors determining biological damage
  • The energy of the radiation (higher, more damage)
  • The penetrating ability

6
Factors determining biological damage
  • The ionizing ability alpha vs. gamma
  • alpha is very effective at ionizing
  • gamma is neutral and doesnt ionize as readily
  • Chemical properties
  • How long it remains in the body accumulates in
    body
  • Rem indicates the danger the radiation poses for
    humans.

7
Effects of Short-Term Exposures to Radiation
  • Dose (rem)
  • 0-25
  • 25-50
  • 100-200
  • 500
  • Clinical Effect
  • Nondetectable
  • Temporary decrease in white blood cell counts
  • Strong decrease in white blood cell counts
  • Death of half the exposed population w/in 30 days
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