Indoor radon activity concentrations and effective dose rates at houses in the Afyonkarahisar province of Turkey

  • Hüseyin Ali YalımEmail author
  • Ayla Gümüş
  • Duygu Açil
  • Rıdvan Ünal
  • Ahmet Yıldız
Original Paper


An indoor radon activity concentration survey has been carried out at 46 houses in Afyonkarahisar province of Turkey using CR-39 passive nuclear track detectors four times during a 1-year period. The measured values ranged from 21 to 2494 Bq m−3, whereas the calculated average values were in the range of 33.75 and 1614.26 Bq m−3. On the other hand, the calculated annual geometric mean value was 186.50 ± 10.55 Bq m−3 and it was 136.07 ± 8.76 Bq m−3 when only the living areas of the houses considered. The corresponding annual effective dose rates were obtained to be in the range of 0.53 and 25.45 mSv year−1. The resulting annual effective dose equivalent calculated from the geometric mean was 2.94 ± 0.17 mSv year−1 for Afyonkarahisar province, while the annual effective dose in the living areas of the houses was obtained to be 2.15 ± 0.14 mSv year−1. According to the floor levels, the concentration value was found to be between 86.60 ± 7.80 Bq m−3 and 291.80 ± 14.60 Bq m−3. The present results show an exponential decrease with the distance from the soil having the correlation coefficient of R2 = 0.988.


Indoor radon activity Annual effective dose Nuclear track detectors Floor levels Houses Afyonkarahisar 



The authors are thankful to the director and professional staff of Health Physics Department at Sarayköy Nuclear Research and Training Center, for their valuable help in dosimetry evaluations.

Funding information

This study was funded by the Turkish Atomic Energy Authority [A5.H1.P1.06] and Afyon Kocatepe University Science Research Projects Coordination Unit with the grant number [12.FENBİL.14].

Compliance with ethical standards

This article does not contain any studies with human participants or animals performed by any of the authors.

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

12517_2020_5119_MOESM1_ESM.docx (286 kb)
ESM 1 (DOCX 285 kb)


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Copyright information

© Saudi Society for Geosciences 2020

Authors and Affiliations

  • Hüseyin Ali Yalım
    • 1
    Email author
  • Ayla Gümüş
    • 1
  • Duygu Açil
    • 1
  • Rıdvan Ünal
    • 2
  • Ahmet Yıldız
    • 3
  1. 1.Science and Literature Faculty, Physics DepartmentAfyon Kocatepe UniversityAfyonkarahisarTurkey
  2. 2.Health Services Vocational SchoolUşak UniversityUşakTurkey
  3. 3.Engineering Faculty, Geology EngineeringAfyon Kocatepe UniversityAfyonkarahisarTurkey

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