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Evaluation of environmental natural radioactivity levels in soil and ground water of Barkin Ladi, Plateau state, Nigeria

Gamma spectrometry was used to measure gamma dose rate in air and to determine the activity concentration of naturally occurring radionuclides viz. 226Ra 232Th and 40K in soil samples collected across the geological formations of Barkin Ladi. Dose rates measured in-situ ranged from 5 nGy h−1 to 1265...

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Main Authors: Abba, Habu Tela, Wan Hassan, Wan Muhamad Saridan, Saleh, Muneer Aziz
Format: Article
Published: Penerbit UTM Press 2018
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TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/84257/
https://doi.org/10.11113/mjfas.v14n3.882
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spelling my.utm.842572019-12-16T03:22:03Z http://eprints.utm.my/id/eprint/84257/ Evaluation of environmental natural radioactivity levels in soil and ground water of Barkin Ladi, Plateau state, Nigeria Abba, Habu Tela Wan Hassan, Wan Muhamad Saridan Saleh, Muneer Aziz TP Chemical technology Gamma spectrometry was used to measure gamma dose rate in air and to determine the activity concentration of naturally occurring radionuclides viz. 226Ra 232Th and 40K in soil samples collected across the geological formations of Barkin Ladi. Dose rates measured in-situ ranged from 5 nGy h−1 to 1265 nGy h−1 with a mean value of 325 nGy h−1. The activity concentrations of 226Ra ranged from 27 to 327 Bq kg−1, 34 to 457 Bq kg−1 for 232Th and 43 to 1055 Bq kg−1 for 40K. Their mean values are significantly higher than their corresponding global average values. Annual effective dose due to exposure to gamma dose is calculated at 0.34 mSv y−1. Mass concentrations of uranium (238U) and thorium (232Th) determined in groundwater samples using Inductive Coupled Plasma Mass Spectrometry (ICP-MS) ranged from 2.5 to 35 μg l−1 for 238U and 0.5 to 15 μg l−1 for 232Th. Ingestion effective dose varies between 10.5 and 142 mSv y−1 for 238U and between 0.34 and 10.2 mSv y−1 for 232Th. Mass concentration of three water samples exceed the toxicity limit of U in groundwater provided by WHO. The result revealed that human risk due to ingestion of groundwater is from chemical toxicity rather than radiological effects. The results of this work will be useful for radio-geochemical investigation and groundwater resources management. Penerbit UTM Press 2018 Article PeerReviewed Abba, Habu Tela and Wan Hassan, Wan Muhamad Saridan and Saleh, Muneer Aziz (2018) Evaluation of environmental natural radioactivity levels in soil and ground water of Barkin Ladi, Plateau state, Nigeria. Malaysian Journal of Fundamental and Applied Sciences, 14 (3). pp. 338-342. ISSN 2289-5981 https://doi.org/10.11113/mjfas.v14n3.882
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Abba, Habu Tela
Wan Hassan, Wan Muhamad Saridan
Saleh, Muneer Aziz
Evaluation of environmental natural radioactivity levels in soil and ground water of Barkin Ladi, Plateau state, Nigeria
description Gamma spectrometry was used to measure gamma dose rate in air and to determine the activity concentration of naturally occurring radionuclides viz. 226Ra 232Th and 40K in soil samples collected across the geological formations of Barkin Ladi. Dose rates measured in-situ ranged from 5 nGy h−1 to 1265 nGy h−1 with a mean value of 325 nGy h−1. The activity concentrations of 226Ra ranged from 27 to 327 Bq kg−1, 34 to 457 Bq kg−1 for 232Th and 43 to 1055 Bq kg−1 for 40K. Their mean values are significantly higher than their corresponding global average values. Annual effective dose due to exposure to gamma dose is calculated at 0.34 mSv y−1. Mass concentrations of uranium (238U) and thorium (232Th) determined in groundwater samples using Inductive Coupled Plasma Mass Spectrometry (ICP-MS) ranged from 2.5 to 35 μg l−1 for 238U and 0.5 to 15 μg l−1 for 232Th. Ingestion effective dose varies between 10.5 and 142 mSv y−1 for 238U and between 0.34 and 10.2 mSv y−1 for 232Th. Mass concentration of three water samples exceed the toxicity limit of U in groundwater provided by WHO. The result revealed that human risk due to ingestion of groundwater is from chemical toxicity rather than radiological effects. The results of this work will be useful for radio-geochemical investigation and groundwater resources management.
format Article
author Abba, Habu Tela
Wan Hassan, Wan Muhamad Saridan
Saleh, Muneer Aziz
author_facet Abba, Habu Tela
Wan Hassan, Wan Muhamad Saridan
Saleh, Muneer Aziz
author_sort Abba, Habu Tela
title Evaluation of environmental natural radioactivity levels in soil and ground water of Barkin Ladi, Plateau state, Nigeria
title_short Evaluation of environmental natural radioactivity levels in soil and ground water of Barkin Ladi, Plateau state, Nigeria
title_full Evaluation of environmental natural radioactivity levels in soil and ground water of Barkin Ladi, Plateau state, Nigeria
title_fullStr Evaluation of environmental natural radioactivity levels in soil and ground water of Barkin Ladi, Plateau state, Nigeria
title_full_unstemmed Evaluation of environmental natural radioactivity levels in soil and ground water of Barkin Ladi, Plateau state, Nigeria
title_sort evaluation of environmental natural radioactivity levels in soil and ground water of barkin ladi, plateau state, nigeria
publisher Penerbit UTM Press
publishDate 2018
url http://eprints.utm.my/id/eprint/84257/
https://doi.org/10.11113/mjfas.v14n3.882
_version_ 1654960062447222784
score 13.211869

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