Consider the Following

back (1K)       next (1K)

    Most risk estimates are based on very high to a small human population or to large populations of other life forms.
    • Mutagenic effects of radiation were first seen in 1927 on insect populations.
    • Recent experiments involving mice required 1,000,000 animals to get any useful results for demonstrating stochastic effects at low doses.
    • Large doses are required to achieve any genetic mutations.
    • Ten percent of all live human births have significant genetic defects.
    • Twenty-four percent of the US population will develop and later die from some form of cancer.
    • Since stochastic effects caused by radiation cannot be distinguished from natural incidence, how can you tell one from the other?
    • If a population of 10,000 people receive one rem of exposure, an additional three cancer deaths are estimated as the risk for this population. 2,400 will die from cancer. The risk of three cannot be statistically "seen" in this population.


Page 141

back (1K)       next (1K)