Total Terrestrial Gamma Activity Polygons for an Aerial Radiological Survey of Abandoned Uranium Mines, Navajo Nation, 1994-1999, USEPA and USDOE
This polygon shapefile presents ranges of ground surface exposure rate from total terrestrial gamma activity, and calculated from aerial gross count data (all gamma events in the range of 38-3026 keV). Forty one (41) aerial radiological surveys of potential uranium mining areas (1,144 square miles) were conducted …