title: Optimizing the gross alpha counting method for determining Rn progeny levels in the atmosphere.
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000396:Air Pollutants, Radioactive / Q000032:analysis*; D000512:Alpha Particles; D001729:Bismuth / Q000032:analysis*; D007854:Lead / Q000032:analysis*; D011059:Polonium / Q000032:analysis*; D011874:Radiometry / Q000379:methods; D017687:Radon Daughters
chemical_list: D000393:Air Pollutants; D000396:Air Pollutants, Radioactive; D017687:Radon Daughters; D007854:Lead; D011059:Polonium; D001729:Bismuth