eve a believe, at the present time, three-tonths of a rad per week, based on a human being who has a life span which is many tines that of the fish ard based unon genetic change, SO we would be very surprised if we Sav any radiation damage in tho organisms of the Columpia River, In terns of edibility of these particular fish, we point out that they do accumulate some radisactive materials, but wo so2 no reason to clese the fishing because it would be utterly imvossible fer anybody to sit dowm day after day and eat the quantity of Fish that would be required to give that individual the body burden that would be permissible in terns on of the standards that we work with in atomic energy plants. DR. PEARSON: We have time for just a few questions on this paper. ° DR. KSTCIUM: Your lowest form in the food chain order was a herbivor, and the amount oF acctrulation decreased betveen that and your fish, Does that mean that you would have two orders of macnitude more than the herbivor? DR. POSTER! Tnis depends on several things. The percentass of phosphorous composition of the various forms here is of prine imrcortancs. out a little later, than the animals. In other words, I think this will be Flants havo a lover pnhesphorous composition If you get into the phosphorous rich animal and you have the pessibility of this animal cating a good nany plants, concentrating the phosphorous itself and thus ending uv