The USGS, in collaboration with other federal and state government agencies, industry, and academia, is conducting the National Geochemical Survey (NGS) to produce a body of...

References contained in this database are from Bibliography on Atomic Energy Levels and Spectra, NBS Special Publication 363 and Supplements, as well as current references since...

Data comprise estimates of activity concentrations of naturally occurring radionuclides (40K, 238U and 232Th series radionuclides) in environmental media (soil and stream...

The latest merged airborne Thorium data from the Tellus project, managed by the Geological Survey Ireland. The survey was conducted using an from a survey aircraft flying at an...

The latest merged airborne total count data from the Tellus project, managed by the Geological Survey Ireland. The survey was conducted using an from a survey aircraft flying...

The latest stream sediments data from the Tellus project, managed by the Geological Survey Ireland. A total of 52 major and trace elements in 9,471 stream sediment samples were...