[en] From August 15, 1946 until July 15, 1953, ANL occupied part of the Museum of Science and Industry in Chicago; some handling of radioactive materials took place. In a radiation survey taken of the areas in 1977, instrument and smear surveys were made, and air and soil samples were counted. Results indicate there is no identifiable residual radioactivity remaining from MED/AEC operations during the period 1946 through 1953