title: Ground-water concentrations of 226Ra and 222Rn in North Carolina phosphate lands.
mesh_terms: D055593:Geological Phenomena; D005844:Geology; D008906:Mining; D009657:North Carolina; D010710:Phosphates; D011883:Radium / Q000032:analysis*; D011886:Radon / Q000032:analysis*; D014873:Water Pollutants / Q000032:analysis*; D014875:Water Pollutants, Radioactive / Q000032:analysis*
chemical_list: D010710:Phosphates; D014873:Water Pollutants; D014875:Water Pollutants, Radioactive; D011886:Radon; D011883:Radium