Radon-222 Concentration in Outdoor Air at Wakasa District.

DOI 4 Citations 17 References
  • OGAWA Yoshihiro
    Department of Nuclear Engineering, Faculty of Science and Technology, Kinki University
  • KIMURA Yuichiro
    Department of Nuclear Engineering, Faculty of Science and Technology, Kinki University
  • YAMASAKI Keizo
    Division of Radiation Protection, Kyoto University Research Reactor Institute
  • TSUJIMOTO Tadashi
    Division of Radiation Protection, Kyoto University Research Reactor Institute

Bibliographic Information

Other Title
  • 若狭地区における屋外ラドン濃度

Search this article

Abstract

To obtain the basic data for radon, we carried out the measurement of the 222Rn concentration in outdoor air at Wakasa district (21 measurement points) with a cup monitor for 449 days. From the comparisons between 222Rn concentrations and exposure rates or 226Ra radioactivities in soil, the following conclusions were made.<br>1. The range of 222Rn concentrations averaged for 449 days were from 12.4Bq/m3 to 1.9Bq/m3. The seasonal variation of 222Rn concentration showed low concentrations from spring to summer.<br>2. 1Bq/m3 of 222Rn concentration was estimated to contibute to about 0.5nGy/h of exposure rate.<br>3. The clear correlation between 222Rn concentration and 226Ra radioactivity in soil was observed. From the correlation obtained, the remote source component of 222Rn concentration in outdoor air was estimated to be about 2Bq/m3. 100Bq/kg of 226Ra radioactivity in soil was estimated to produce about 7Bq/m3 of 222Rn concentration in outdoor air through various complex paths from soil.

Journal

Citations (4)*help

See more

References(17)*help

See more

Keywords

Details 詳細情報について

  • CRID
    1390282679267159680
  • NII Article ID
    10002135626
  • NII Book ID
    AN00228458
  • DOI
    10.5453/jhps.30.303
  • ISSN
    18847560
    03676110
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

Report a problem

Back to top