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Appendix A: Specific Comments
Appendix A: Specific Comments
Pages 41-49
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From page 41... ...
Page 46, second paragraph It is stated that "the total deposition of Cs-137 from all Nevada Test Site tests considered in this report through 1962 is shown in Figure 3.~." The information presented in the figure is displayed as deterministic (that is, without any error or uncertainty)
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From page 42... ...
. .al1 Nevada Test Site tests, 34% of the 137CS produced was deposited in the contiguous United States." Were similar calculations made for the other nuclides?
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From page 43... ...
The discussion is further confused by the later paragraph that indicates a range of 4-fold lower to 4-fold higher; the report should probably illustrate circumstances in which the effective dose is twice the outside dose. Page 55, third paragraph "The actual dose to a person who lived in the United States doting the years of fallout should generally lie within a range from one-fourth as large as these estimates provided here to about four times larger than these estimates." How could such a conclusion be considered reliable on the basis of the limited study conducted?
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From page 44... ...
be mentioned as a reason for the age difference in radiosensitivity, namely, that the thyroid epithelial cells have the capacity for only a finite number of replications and that radiation exposure occulting when the cells are in replicative senescence in early adulthood will induce little or no cancer. Page INS, last full sentence The evidence that "the rate of increase in risk tof benign tumors]
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From page 45... ...
It would be more appropriate for the sentence to indicate that no effect has been demonstrated at low to moderate doses. Page 142, end of middle paragraph It is suggested that the last sentence read, "non-cancer health effects, and there is no clear evidence of any risk at low doses." Page 143, top of page The discussion highlights the uncertainties in the risk projections and raises the question of whether, given the uncertainties, they "can be useful for developing public health policy." The text then proposes to address the question by providing "preliminary example estimates of population nsk." In the case of radionuclides other than ill]
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From page 46... ...
Tissue damage has its own set of parameters that are not necessarily congruent with, for example, those of cancer induction. Page 150, first paragraph The text mentions the likelihood that relative risk decreases over time, but this is not explored In the context of the risk estunates set form to describe the possible effect of a temporal decrease in risk in reducing lifetime radiation risk.
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From page 47... ...
Page 157, third paragraph The statement that "increased rates of leukemia have been reported in persons living downwind of the Nevada Test Site (Stevens et al., 1990) " stretches the finding.
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From page 48... ...
Page 167, end of first paragraph The text states that the "most likely non-cancer health outcomes are those affecting the thyroid gland" but does not state that other noncancer relationships are very unlikely. Appendix 1 of Appendix D This appendix presents an example related to exposure evaluation, using a method to evaluate cumulative exposure to external gamma radiation over the interval 20 d to 200 d relative to time of arrival (TOA)
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From page 49... ...
The committee suggests that the glossary include radioactive elements referred to In the text with only chemical symbols and include explanations of various models (such as linear nothreshold and linear-quadratic)
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