Measurement of radon daughters in air.
D000398:Air Pollution, Radioactive / Q000032:analysis*; D000512:Alpha Particles; D001729:Bismuth / Q000032:analysis; D004781:Environmental Exposure; D006801:Humans; D007854:Lead / Q000032:analysis; D008906:Mining; D011059:Polonium / Q000032:analysis; D011874:Radiometry; D013997:Time Factors; D014501:Uranium
D007854:Lead; D014501:Uranium; D011059:Polonium; D001729:Bismuth