IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v19y2022i13p7761-d846967.html
   My bibliography  Save this article

Radon Solubility and Diffusion in the Skin Surface Layer

Author

Listed:
  • Akihiro Sakoda

    (Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency, 1550 Kamisaibara, Kagamino-cho, Tomata-gun, Okayama 708-0698, Japan)

  • Tsuyoshi Ishida

    (Graduate School of Health Sciences, Okayama University, 5-1 Shikata-cho 2-chome, Kita-ku, Okayama 700-8558, Japan)

  • Norie Kanzaki

    (Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency, 1550 Kamisaibara, Kagamino-cho, Tomata-gun, Okayama 708-0698, Japan)

  • Hiroshi Tanaka

    (Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency, 1550 Kamisaibara, Kagamino-cho, Tomata-gun, Okayama 708-0698, Japan)

  • Takahiro Kataoka

    (Graduate School of Health Sciences, Okayama University, 5-1 Shikata-cho 2-chome, Kita-ku, Okayama 700-8558, Japan)

  • Fumihiro Mitsunobu

    (Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, 5-1 Shikata-cho 2-chome, Kita-ku, Okayama 700-8558, Japan)

  • Kiyonori Yamaoka

    (Graduate School of Health Sciences, Okayama University, 5-1 Shikata-cho 2-chome, Kita-ku, Okayama 700-8558, Japan)

Abstract

In specific situations such as bathing in a radon spa, where the radon activity concentration in thermal water is far higher than that in air, it has been revealed that radon uptake via skin can occur and should be considered for more precise dose evaluation. The primary aim of the present study was to numerically demonstrate the distribution as well as the degree of diffusion of radon in the skin, with a focus on its surface layer (i.e., stratum corneum). We developed a biokinetic model that included diffusion theory at the stratum corneum, and measured radon solubility in that tissue layer as a crucial parameter. The implementation of the model suggested that the diffusion coefficient in the stratum corneum was as low as general radon-proof sheets. After a 20-min immersion in water, the simulated depth profile of radon in the skin showed that the radon activity concentration at the top surface skin layer was approximately 10 3 times higher than that at the viable skin layer. The information on the position of radon as a radiation source would contribute to special dose evaluation where specific target cell layers are assumed for the skin.

Suggested Citation

  • Akihiro Sakoda & Tsuyoshi Ishida & Norie Kanzaki & Hiroshi Tanaka & Takahiro Kataoka & Fumihiro Mitsunobu & Kiyonori Yamaoka, 2022. "Radon Solubility and Diffusion in the Skin Surface Layer," IJERPH, MDPI, vol. 19(13), pages 1-12, June.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:13:p:7761-:d:846967
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/19/13/7761/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1660-4601/19/13/7761/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Werner Hofmann & Herbert Lettner & Alexander Hubmer, 2021. "Dosimetric Comparison of Exposure Pathways to Human Organs and Tissues in Radon Therapy," IJERPH, MDPI, vol. 18(20), pages 1-19, October.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.

      Corrections

      All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jijerp:v:19:y:2022:i:13:p:7761-:d:846967. See general information about how to correct material in RePEc.

      If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

      If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

      If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

      For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

      Please note that corrections may take a couple of weeks to filter through the various RePEc services.

      IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.