>} yoy ike fae? é mo, co ae, ay ARS 4 4 Q QU 7 aii? - Hfbfs Sar wet _— LRL FALLOUT INFORMATION APRIL 5 - NOVEMBER 15, 1958 | [GG here The work reported herein is authorized by the chiefs of LRL Health Chemistry Sections, N. B. Garden and 0. L. Meadors, of Berkeley and Livermore respectively. Responsibility for the work was assigned to their Airborne Activity Control groups under direction of M. 2D. Thaxter and J. R. Murrow. This report was written by M. D. Thaxter with the collaboration of J. Young. ABSTRACT "Hardtack” fallout was estimated by the two LRL sites independently by analysis of filter collections of air-dusts at both sites and by several other methods at the Berkeley site. Examination of various data, permits some conclusions and comparisons within the report period as well as in the light of previous fallout periods. Activity graphs and an appendix of data with brief description of methods employed are submitted. BEST COPY AVAILABLE

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