Radionuclide Basics: Radon
Radon (chemical symbol Rn) is an odorless, colorless, radioactive gas. It is the second leading cause of lung cancer in the United States.
Page 3: Guidelines for Canadian Drinking Water Quality: Guideline Technical Document – Radiological Parameters
Radon Gas in Air and Water – SimpleLab Tap Score
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Predicted Indoor Radon Map of Mashhad dwellings over a grid with the
Lung dosimetry for inhaled long-lived radionuclides and radon progeny
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Radon - Wikipedia
Radon and thoron exhalation rate, emanation factor and radioactivity risks of building materials of the Iberian Peninsula [PeerJ]
Full article: A rapid-detection method for radioactive cesium in the air
Exposure due to Radionuclides in Food Other than During a Nuclear or Radiological Emergency. Part 1: Technical Material