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RADIATION STANDARDS, INCLUDING FALLOUT
STATEMENT OF C. L. DUNHAM, M.D.,1 DIRECTOR, DIVISION OF
BIOLOGY AND MEDICINE, U.S. ATOMIC ENERGY COMMISSION
Dr. Donuam. Mr. Chairman, it is.a privilegeto appear before this
committee which has taken such a constructive interest in radiation
protection standards and in fallout from the testing of nuclear weapons. You have recognized in the planning of these hearings that
weapons testing
ou have
is once again a fact.
asked that
.
summarize in advance of testimony by the
experts our current knowledge about radioactive fallout from thetest-
ing of nuclear weapons with special emphasis on knowledge accrued
since the 1959 hearings.
The Atomic Energy Commission, during this period, has doneits
utmost to take advantage of the absence of testing to gain as much
knowledge as possible about fallout. Much of this new knowledgeis
summarized in the report of the fallout conference held at. Germantown, November 15-17, 1961. This report has already been made
available to you.
With the resumption of atmospheric testing by the U.S.S.R. last
fall and more recently by the United States, we are intensifying our
fallout studies. These new injections of radioactive debris into the
atmosphere at different latitudes and a wide range of altitudes afford
a unique opportunity to extend further our understanding of the
mechanisms involved in the transport and distribution of fallout; information not only of significance in terms of weapons testing and
1 Curriculum vitae, Charles L. Dunham, M.D.:
Born: Evanston, JIL, December 28, 1906.
,
Education: Evanston Township High School; B.A., Yale University, 1929; M.D., Rush
Medical College, University of Chicago, 1933.
Experience: Interned at University of Chicago clinies, April 1933 to June 1934. Assistant resident in medicine at New Haven Hospital, New Haven, Conn., June 1934 to February 1935. Full-time assistant in medicine, Billin
Memorial Hospital, University of
Chicago, working in the gastrointestinal clinic, later
allergy clinic and laborato , 1936—
42; instructor, then assistant professor of medicine in charge of the arthritis
ie and
hospital service, 1946-49. Served in U.S. Army September. 1943 to May 1946, first as
chief, outpatient service station hospital,
Los Angeles Port of Embarkation, Torrence,
Calif., later as assistant and finally as chief, preventive medicine and medical inspector
for Headquarters, Armed Forces,
Office of the Surgeon, Headquarters, Army Forces in
Middle Pacific. Joined the U.S. Atomic Ene
Commission as Assistant Chief, Medical
Branch, Division of Biclogy
and Medicine, 1949: Chief of the Branch, 1950 to June 1954:
Deputy Director, July 1954 to September 19585: Director, October 1955 to date. Past
member of National Cancer Chemo erapy Committee, AEC representative on the National
Academy of Sciences National Research
Counsel's Division of
Medical Sciences: American
Medical Association, Industrial Medicine Association, Radiation Research Society, Health
Physics Society, Society of Nuclear Medicine, American Nuclear Society, New York Academy of Sciences, Radiological Society of North America, American Rheumatism Association,
A.A.A,.S., and Sigma Xi.
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