Comparison of urinary excretion of radon from the human body before and after radon bath therapy

Norbert Kávási, Tibor Kovács, János Somlai, Viktor Jobbágy, Katalin Nagy, Eszter Deák, István Berhés, Tamás Bender, Tetsuo Ishikawa, Shinji Tokonami

Research output: Contribution to journalArticle

4 Citations (Scopus)


Theoretically, the human body absorbs radon through the lungs and the skin and excretes it through the lungs and the excretory organs during radon bath therapy. To check this theory, the radon concentrations in urine samples were compared before and after radon bath therapy. During the therapy, the geometric mean (GM) and the geometric standard deviation of the radon concentration in air and in the bath water were 979 Bq m-3, 1.58 and 73.6 Bq dm-3, 1.1, respectively. Since radon was detected in each urine sample (GM around 3.0 Bq dm-3), urinary excretion of radon was confirmed. The results of this study can neither reject nor confirm the hypothesis of radon absorption through the skin. A 15 times higher increment of inhaled radon level did not cause significant changes in radon of urine samples.

Original languageEnglish
Article numberncr099
Pages (from-to)27-30
Number of pages4
JournalRadiation protection dosimetry
Issue number1-3
Publication statusPublished - Jul 1 2011


ASJC Scopus subject areas

  • Radiation
  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Public Health, Environmental and Occupational Health

Cite this