Radiometric survey of sediments and health risk assessments from the southern coastal area of Delta State, Nigeria

Esi, Oghenevovwero E.; Avwiri, Gregory O.; Sylvanus, Onjefu A.; Onwudiwe, Damian C.

doi:10.1016/j.heliyon.2024.e26805

Heliyon

2024

DOI: 10.1016/j.heliyon.2024.e26805

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Radiometric survey of sediments and health risk assessments from the southern coastal area of Delta State, Nigeria

Oghenevovwero E. Esi,

Gregory O. Avwiri,

Onjefu A. Sylvanus

et al.

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2024

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Investigation into radioactivity levels in soil samples from wheat cultivation sites in Kapchorwa district Uganda

Sead,

Uzorka,

Olaniyan

2024

Discov Environ

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Using a NaI(Tl) gamma ray spectrometer, the activity concentrations of three natural radionuclides, 238U, 232Th, and 40K, were assessed for soil samples taken from various locations within the Kapchorwa district wheat plantation region. The average values found for 238U, 232Th, and 40K are 47.8 ± 4.1 Bqkg−1, 61.0 ± 3.8 Bqkg−1, and 1339.05 ± 65.3 Bqkg−1, respectively, all of which were above world average values. Radiological health hazard indices were calculated, including radium equivalent activity, absorbed dose rate, annual effective dose equivalent, external and internal health hazard indices, as well as gamma and alpha indices. The findings revealed that the annual effective dose equivalent (HR) and absorbed dose rate (DR) are respectively 0.58 ± 0.03 mSvy−1 and 118.1 ± 7.7 nGyh−1, and the mean value of radium equivalent activity is 246.9 ± 10.4 Bqkg−1. The gamma and alpha health hazard indices have values of 0.93 ± 0.05 and 0.25 ± 0.02, respectively, whereas the external and internal health hazard indices have values of 0.66 ± 0.04 and 0.79 ± 0.04, respectively. The findings showed that although the soil's radioactivity levels were higher than acceptable limits established by international standards, the computed hazard indices were lower than acceptable limits established by international standards, indicating a low risk of radiation contamination in the region. Important information about the natural radioactivity levels in agricultural soils and their effects on the environment and public health in Kapchorwa District and surrounding areas is provided by this study.

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Investigation into radioactivity levels in soil samples from wheat cultivation sites in Kapchorwa district Uganda

Sead,

Uzorka,

Olaniyan

2024

Discov Environ

View full text Add to dashboard Cite

show abstract

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Radiometric survey of sediments and health risk assessments from the southern coastal area of Delta State, Nigeria

Cited by 1 publication

References 48 publications

Investigation into radioactivity levels in soil samples from wheat cultivation sites in Kapchorwa district Uganda

Investigation into radioactivity levels in soil samples from wheat cultivation sites in Kapchorwa district Uganda

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