title: External air kerma rate measurements--comment on paper by Narayana et al.
authors.forename: R L
authors.initials: RL
authors.lastname: Grasty
mesh_terms: D000396:Air Pollutants, Radioactive / Q000032:analysis*; D003359:Cosmic Radiation; D005720:Gamma Rays; D011197:Potassium Radioisotopes / Q000032:analysis; D011834:Radiation Monitoring / Q000295:instrumentation / Q000379:methods*; D011883:Radium / Q000032:analysis; D012588:Scintillation Counting / Q000379:methods; D012990:Soil Pollutants, Radioactive / Q000032:analysis*; D013910:Thorium / Q000032:analysis
chemical_list: D000396:Air Pollutants, Radioactive; D011197:Potassium Radioisotopes; D012990:Soil Pollutants, Radioactive; D013910:Thorium; D011883:Radium