Retention of airborne radon daughters after collection on a filter medium.
D000393:Air Pollutants / Q000032:analysis*; D000396:Air Pollutants, Radioactive / Q000032:analysis*; D001729:Bismuth / Q000032:analysis; D005374:Filtration; D007854:Lead / Q000032:analysis; D011868:Radioisotopes / Q000032:analysis; D011886:Radon / Q000032:analysis*
D000393:Air Pollutants; D000396:Air Pollutants, Radioactive; D011868:Radioisotopes; D007854:Lead; D011886:Radon; D001729:Bismuth