The radiological impact of 219Rn and its effect on 222Rn risk assessment.
D000398:Air Pollution, Radioactive / Q000032:analysis*; D011478:Protactinium; D011886:Radon / Q000032:analysis*; D012306:Risk; D012990:Soil Pollutants, Radioactive
D012990:Soil Pollutants, Radioactive; D011478:Protactinium; D011886:Radon