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HTDS Guide > How the Study
Was Conducted > Consideration of Other Sources of Radiation
HTDS Guide
| How the Study Was Conducted |
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Consideration of Other Sources of Radiation
Scientists specifically designed the HTDS to assess the health
effects of iodine-131 from Hanford. However, to be sure that any
apparent health effects of Hanford's iodine-131 were not actually due to
other causes, researchers needed to consider other possible radiation
exposures.
For the HTDS, the research team considered exposures due to fallout
from nuclear testing at the Nevada Test Site in the 1950s. They also
considered exposures that individual study participants may have
received from diagnostic or therapeutic irradiation, or from jobs that
involved working with radioactive materials. By explicitly accounting
for such exposures in the analyses of the data, researchers were able to
single out the effects of Hanford radiation.
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