Indoor Concentrations of 220Rn and Its Decay Products

Akira Katase, Yuzuru Matsumoto, Takeji Sakae, Kenji Ishibashi

Research output: Contribution to journalArticle

27 Citations (Scopus)


The distribution of 220Rn atoms in a room was derived from the diffusion equation. The activity concentrations of 212Pb and 212Bi were obtained in relation to 220Rn exhalation rate from a concrete wall. Near the surface of the concrete wall, the radiation exposure due to inhalation of 220Rn decay products may be significant in some cases.

Original languageEnglish
Pages (from-to)283-286
Number of pages4
JournalHealth physics
Issue number3
Publication statusPublished - Mar 1988


All Science Journal Classification (ASJC) codes

  • Epidemiology
  • Radiology Nuclear Medicine and imaging
  • Health, Toxicology and Mutagenesis

Cite this

Katase, A., Matsumoto, Y., Sakae, T., & Ishibashi, K. (1988). Indoor Concentrations of 220Rn and Its Decay Products. Health physics, 54(3), 283-286.