—S-E-C-R-E-Bof Argonne National Laboratory and its 32 participating universities and research institutions in the Midwest. Eniwetok Biological Laboratory 22. The Commission is considering the establishment of a small biological station at Eniwetok which would continue the work heretofore conducted by the University of Washington in measuring the uptake of fission products by plants, flsh, other marine animals in the Pacific. made available The facilittes would be to other Government agencies and sity biologists. and to a few univer- Construction and maintenance costs for a small laboratory accommodating elght blologists would be held toa minimum by using existing facilities. (End of UNCLASSIFIED section.) 23. When the U. &. Public Health Service conducted a survey of some 60 uranium mines on the Colorado Plateau in 1950, Lt was found that concentrations of radon and its radioactive products in standards. the mine atmospheres were far higher than recommended Under an agreement with the Commission, Health Service in the summer of 1952 surveyed the Public 157 mines, repre- senting about 90 percent of those operating on the Plateau. Re- sults showed that in 78 percent of these mines employing 84 percent of the miners atmospheric concentrations of radioactive products of radon were standard adopted by the higher than the 1]00-microcurtes-per-liter Public Health Service. In 1953 investiga- tions will he continued to find effective methods for reducing (End of —REMPREGC-PED-section.) tem, this concentration. Part VI Mgt! Exposure of Uranium Miners to Radiation{RESTRICTED}: