Abstract：
:In the Gastein valley, numerous facilities use radon for the treatment of various diseases either by exposure to radon in air or in radon rich thermal water. In this study, six test persons were exposed to radon thermal water in a bathtub and the time-dependent radon activity concentration in the exhaled air was recorded. At temperatures between 38°C and 40°C, the radon activity concentration in the water was about 900 kBq/m3 in a total volume of 600 l, where the patients were exposed for 20 min, while continuously sampling the exhaled air during the bathing and 20 min thereafter. After entering the bath, the exhaled radon activity concentration rapidly increased, reaching some kind of saturation after 20 min exposure. The radon activity concentration in the exhaled air was about 8000 Bq/m3 at the maximum, with higher concentrations for male test persons. The total radon transfer from water to the exhaled air was between 480 and 1000 Bq, which is equivalent to 0.08% and 0.2% of the radon in the water.
journal_name
Radiat Prot Dosimetryjournal_title
Radiation protection dosimetryauthors
Lettner H,Hubmer A,Hofmann W,Landrichinger J,Gaisberger M,Winkler-Heil Rdoi
10.1093/rpd/ncx153subject
Has Abstractpub_date
2017-11-01 00:00:00pages
78-82issue
1-2eissn
0144-8420issn
1742-3406pii
4209255journal_volume
177pub_type
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