TD aypdenans >
cite
wey
172
RADIATION STANDARDS, INCLUDING FALLOUT
produce it ina human. Wecertainly hope we don’t. All we can do
is extrapolate from animal data to human data and on the basis of
this craw some conclusion as to what. might be an expected limit and
then introduce a safety factor.
J would say that this information is coming out all the time. It is
in the same state as the information on ourfallout predictions. It
gets better and better and perhaps in a few more years this number
will be able to be pinned down or at least a value put on it that
has a degree of confidence considerably greater than the present time.
But we may never know how muchit takes to produce bone pathology
ina human specifically.
Mr. Ramey. Would you elaborate a little more on the hazard of
cesinm? You have madea study of this.
Dr. Lancuam. Yes. We spent 6 years studying the cesium problem, and it is our opinion now we were betting on the wrong isotope.
It. turned out to be not very spectacular. The levels of cesium in
tne population and in the diet is almost entirely dependent upon
the rate process which means during periods of weapon tests ceslum
activity will be high. When weapon tests cease the activity will drop
very fast, dropping with perhaps a half time of 10 months or comparable to the fallout rate.
Mr. Ramey. Is that. becauseit falls on the leaves of crops?
Dr. Lanenam. Yes; it is getting into the plant only by the contamination of the foliage.
Representative Price. Thank you very much, Dr. Langham.
I understand that you will appear on the panel later this afternoon.
Weappreciate yourfine paper today.
Dr. Lanenam. Thank you.
Representative Price. The next witness will be Dr. James G. Terrill
of the U.S. Public Health Service.
STATEMENT OF JAMES G. TERRILL, JR.,1 DEPUTY CHIEF, DIVISION
OF RADIOLOGICAL HEALTH, PUBLIC HEALTH SERVICE, U.S. DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE, WASHINGTON, D.C.
Mr. Terrtun. Thank you.
Representative Price. Your full statement will appear in the record.
I understand you intend to summarize your statement.
Mr. Terrill was graduated from the University of Cincinnati in 1937, with a degree
ip civil engineering. He studied public health engineering at the Massachusetts Institute
at Technology Graduate School from 1938 to 1941.
Since 1941 he has been active in the
Pulilfe Health Service. He participated in tha first Bikini tests.
During the period
1948 51 he studied radiological defense enginetring under the sponsorship of the Armed
orces special weapons projects at the U.S. Navy Postgraduate School and the Untversity
of California; and received a master of bioradiology degree from the University of Callfornia. He has participated in and directed the Public Health Service activities related
to the Nevada and Pacific test operations during 1953-57.
alr. Terrill is a member of the National Committee on Radiation Protection, the Nuclear
Standards Board of the American Standards Association, and the Expert Advisory Panel
on Radiation of the World Health Organization, and is a diplomate of the American
Academy of Sanitary Engineers.
He is the Department of Health, Education, and Welfare
representative on the Working Group of the Federal Radiation Council and is. at present,
Chairman. He is a member of the American Society of Civil Engineers and a member of
the Program Area Comiittee on Radiotogical Health of the American Public Health
Association,
Presently, he is Deputy Chief of the Division of Radiological Health of the Public
Health Service.
Mr. Terrill lives at 9223 Quintana Dr., Burning Tree Estates, Bethesda, Md.
ago Ebbas Qs SAS SREUSENPEs |SORRBaDSARCSECERRO