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Assessment of Radiation Dose Levels in Tiles Used for Decoration in Bungoma County, Kenya

Author

Listed:
  • John Simiyu Nalianya

    (Department of Science, Technology and Engineering, Kibabii University, P.O BOX 1699-50200, Bungoma, Kenya.)

  • Michael Nakitare Waswa

    (Department of Science, Technology and Engineering, Kibabii University, P.O BOX 1699-50200, Bungoma, Kenya.)

  • Francis Maingi

    (Department of Science, Technology and Engineering, Kibabii University, P.O BOX 1699-50200, Bungoma, Kenya.)

  • Conrad Khisa Wanyama

    (Department of Science, Technology and Engineering, Kibabii University, P.O BOX 1699-50200, Bungoma, Kenya.)

Abstract

The natural radioactive content of tiles used in Bungoma County, Kenya was assessed using gamma ray spectroscopy in this study. The amounts of certain radioisotopes found in 20 samples of decoration tiles used in Bungoma County, Kenya were estimated using a NaI(Tl) detector. The average activity concentrations of 226Ra, 232Th, and 40K for the tiles were determined to be 11±0.55, 109±5.85, and 1574±78.7Bq/kg respectively. Radiological hazard indices such as absorbed dose rate, radium equivalent activity, external Hazard Index (Hex), internal Hazard Index (Hin), Indoor and outdoor Annual Effective Dose (mSv/y), were determined as 140±7.03 nGyh-1; 288±14.44 Bq/kg, 0.7±0.03 mSv/y, 0.8±0.04 mSv/y; 0.5±0.02mSv/y; and 0.3±0.01mSv/yrespectively. The mean radium equivalent obtained in this investigation was lower than the worldwide reference value of 370 Bq/kg. Hence, use of tiles for decoration in Bungoma County, Kenya has minimal health threat to the population.

Suggested Citation

  • John Simiyu Nalianya & Michael Nakitare Waswa & Francis Maingi & Conrad Khisa Wanyama, 2022. "Assessment of Radiation Dose Levels in Tiles Used for Decoration in Bungoma County, Kenya," International Journal of Research and Scientific Innovation, International Journal of Research and Scientific Innovation (IJRSI), vol. 9(3), pages 04-07, March.
    • Handle: RePEc:bjc:journl:v:9:y:2022:i:3:p:04-07
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