SESSION 11 137 CONARD: Relatively greater, yes. EISENBUD: As a general rule, as many of you know, the dose rate goes down by a factor of !0 for every sevenfold increase in time. The dose rate must have been down to about 10 percent of what it was when it started. Had they stayed on then, as you said, it would have been a smaller figure, something like 25. AYRES: It's not true in the early hours, when you're not at ground zero, because of the delayed arrival. UPTON: But thia is simply the external radiation. This doesn't take account of continual recontamination by fission products in the environment, crease. The internal burden would presumably continue to in- DUNHAM: Relatively speaking the strontium-90 is unimportant to begin with, as Dr. Ayres points out. The amount of strontium-90 that they are now living with isn't very different from what it was when they left. It was the material on the surface of the food that they might have eaten on the first two days that was important. CONARD: [think we should seriously consider the possible psychological reactions to the residual fallout situation. It would be a great mistake if this hazard were overplayed. It could cause psychological unrest and interfere seriously with realistically facing the recovery problems. I think this point deserves serious consideration. FREMONT-SMITH: Also, there would be a credibility lack if we made leas of it than we should and it ‘vas then discovered that we had made less of it. CONARD: Yes, that's true. ROOT: Could [ have a word about the crab that was a staple in their diet. I've heard two things: one, that the crabs ingest their own shelis so they are forbidden as food; and the other, that they have disappeared entirely. “CONARD: No, they are still there. They're reduced in number. The coconut crab is quite a delicacy among the people. DUNHAM: It's not a staple, it's a delicacy.