WASHINGTONScientists have concluded that no increased risk of thyroid
disease, including cancer, befell children exposed to Iodine-131 released from
the Hanford Nuclear Weapons Production Facility in Washington State. According
to the Centers for Disease Control and Prevention, the Hanford Thyroid Disease
Study (HTDS) found that the risk of thyroid disease was about the same among
study participants regardless of dose levels of radiation they received in the
period between 1944 and 1957.
Thyroid disease was found in those exposed, but the rates were essentially
the same across all levels of exposure, the CDC said. The Fred Hutchinson
Cancer Research Center and the CDC released the final report of the 13-year
HTDS during a community meeting in Richland, near the Hanford facility.
Congress mandated HTDS after the 1988 revelation by the US Department of
Energy that large amounts of I-131 were released at the Hanford facility in the
1940s and 1950s, with releases peaking in 1945.