332 RADIATION STANDARDS, INCLUDING FALLOUT eases there are so great that they make difficult or impossible the sorting out of any specific effects of irradiation on life shortening. I see very little probability of deriving data from human studies. I think in this area we will have to depend on large-scale small animal studies. Representative Price. Mr. Ramey? Mr. Ramey. Are you getting anywhere with your research on dogs using strontium 90? Dr. Hasrerui«. [am not involved in thatatall, sir. Mr. Ramey. Thatis being conducted at Argonne? Dr. Hasrertr«. At the Argonne National Laboratory. I am not involved in that. Mr. Ramey. I understand that. Dr. Hasrerux. I think that is getting underway at the present time. Mr. Ramey. How abouttheir studies on water that is highly radioactive, relatively speaking ? Dr. Hasreruix. Yes. As you know,there are areas in the State of Illinois where the drinking water is a factor of 10 to 50 times as high as Lake Michigan water. I think about 75,000 people drink this water. I do not think one can say much about any possible effects on these people because a complete study has not been done. A. first look has been made on the incidence of malignancies in that portion of the State. Thisis difficult because, again, of the usual problem we run into—the validity of the death certificates. Dr. Auerbach at the Argonne National Laboratory made a study on this point alone. I don’t think we can answer this question. Representative Prick. What elementis in the water? Dr. Hasrertix. Radium 226. This is naturally occurring radium 226. Lockport, Joliet, and some of the communities lying south of that extending toward Springfield draw their water from wells that go 2,000 feet deep. Surface waters have radium contents equivalent to Lake Michigan water. The deep well water radium content is considerably higher. This comes from a stratum in Canada. Mr. Ramey. I don’t know whetherthis is in this bailiwick, either. I think in some of our earlier hearings mention was madeof studies of AEC and contractor employees on their history as to the relative incidence of tumors and other things as a statistical study. Possibly Dr. Dunham reported on that a few years ago. Has anything happened in that study ? Dr. Hasrerii«. I know nothing about this. Representative Price. Dr. Dunham is still with us. Maybe he would want to commenton it. Dr. Dunuam. That particular study showed no increased incidence at all. On the other hand, it is a highly selected population. Dr. Dunning may have some further data. I think there were some studies done at Oak Ridge. Mr. Ramey. It actually showed a lower incidence, but it was a younger population. Dr. Dunuam. That is right. It was a highly selected population, so I don’t think it would be fair to draw any conclusions. Representative Price. Thank you very much, Dr. Hasterlik. You have given us a fine paper, and I am sure it will be valuableto the recordof this hearing. PERE os 0OtOo TRE ab rT + oy datty