ect. a as of September of last year we started analyzing these composites for strontium 90 and this 19 the strontium 90 on a scale such as this which is really ten times what the | value is that is shown, In other words, thia value is one tenth of a millicurie per square mile, This picture does, I think, ‘give you an idea that it is going to be a little aifficult to predict strontium 90 too exactly all the tine from straight fallout measurements because wa don't know the source, This material up here is Teapot but how auch of thie level is due to Castle -- in other words, we don't go down to zero any= more in between these series, means? DR, DUNHAM: DRe HARLEY: worldwide area, DR. DUNHAM? contributed so much, These are neans of I'm amazed that Teapot It's rather surprising | w DR. HARLEY: Thesg are worldwide 196

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