ANNUAL EFFECTIVE DOSE ESTIMATION DUE TO THE NATURAL RADIOACTIVITY IN YAM TUBERS (Dioscorea rotundata) CULTIVATED IN NORTHCENTRAL NIGERIA

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Published: Jun 28, 2023
DOI: https://doi.org/10.22452/mjs.vol42no2.8
Keywords:
Natural radioactivity yam tubers NaI(Tl) detector committed effective dose northcentral Nigeria

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Matthew Tikpangi Kolo
Department of Physics, Federal University of Technology, Minna, Niger State, NIGERIA.
https://orcid.org/0000-0002-3225-4262
Oyeleke Ismail Olarinoye
Department of Physics, Federal University of Technology, Minna, Niger State, NIGERIA.
Simon Olonkwoh Salihu
Department of Chemistry, Federal University of Technology, Minna, Niger State, NIGERIA.
Hauwau Kulu Shuaibu
Department of Physics, Nigerian Defence Academy, Kaduna, Kaduna State, NIGERIA.
Funmilayo Ayedun
Department of Physics, National Open University of Nigeria, Abuja, NIGERIA.

Abstract

Yam tubers (Dioscorea rotundata) and soil from commercially cultivated farmland in northcentral Nigeria were collected and investigated for their natural radioactivity content using a 3” × 3” NaI(Tl) gamma detector. Average activities of 238U, 232Th and 40K in the investigated farm soil were 38.13±3.76 Bq kg-1, 15.06±0.99 Bq kg-1 and 381.80±15.50 Bq kg-1, respectively. The results agree with the world’s acceptable levels of safety. Activities measured in the yam tubers were in the range from BDL -76.68±9.73 Bq kg-1 for 238U, BDL - 19.77±1.30 Bq kg-1 for 232Th and 312.50±20.73 - 627.94±38.37 Bq kg-1 for 40K, with average values of 29.23±4.0, 13.10±0.72 and 445.10±27.20 Bq kg-1, respectively. The total effective dose from radionuclide intake from yam ingestion fluctuated between 272.12 μSv y-1 and 935.97 μSv y-1. Correlation analysis identified 238U and 232Th as the leading contributors to the total effective dose from ingesting yam tubers cultivated in northcentral Nigeria.

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How to Cite
Matthew Tikpangi Kolo, Oyeleke Ismail Olarinoye, Simon Olonkwoh Salihu, Hauwau Kulu Shuaibu, & Funmilayo Ayedun. (2023). ANNUAL EFFECTIVE DOSE ESTIMATION DUE TO THE NATURAL RADIOACTIVITY IN YAM TUBERS (Dioscorea rotundata) CULTIVATED IN NORTHCENTRAL NIGERIA. Malaysian Journal of Science, 42(2), 56–61. https://doi.org/10.22452/mjs.vol42no2.8
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Vol 42 No 2 (2023): June
Section
Original Articles

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