Gamma Spectrometric Analysis of Soil, Sediment and Water Samples of Granitic-Type Solid Mineral Mining Activities

Ajekiigbe, K. M.; Olise, Felix S.; Gbenu, S.T.; Yinusa, S. T.; Amadi, V. N.; Olaniyi, H.B.

doi:10.18576/jrna/020105

Cited by 2 publications

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“…In order to assess radiological risk, the external exposure to radiation arising from naturally occurring radionuclides can be determined in terms of the absorbed dose rate. The absorbed dose rate in air at 1 meter above the ground surface has a direct relationship with the activity concentrations of natural radionuclides 238 U, 232 Th and 40 K. The contribution of terrestrial gamma radiation to the absorbed doses in air were calculated using the following formula [11][12]:…”

Section: Calculations Of Radiological Effect Absorbed Dose Ratementioning

confidence: 99%

Radiological hazards of TENORM contaminated soil at Oil and Gas Fields

Ahmed¹,

Mahmoud²,

El-Din

et al. 2019

Arab Journal of Nuclear Sciences and Applications

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The presence of large quantities of TENORM contaminated soil produced during the extraction and processing of crude oil at oil extraction sites exceeds the radiological reference levels assigned by the international organizations [1] TENORM may cause the exposure of workers at these sites to unusual radiation hazards. This is of a great importance for assessing the dose to the workers at these sites, which plays a vital rule in exploring the radiation health risks due to radiation exposure. This study aims to assess the TENORM activity concentration of the contaminated soil in some oil and gas production fields in Egypt. The assessment of the radiological hazards for the workers by estimating the annual doses and the radiation hazard indices were also studied. The obtained data show that the activity concentration of 238 U, 232 Th and 40 K ranged from166 to 42567 Bq/Kg, 88 to 8358 Bq/Kg and 52.22 to 440 Bq/Kg respectively. The calculated absorbed dose rate ranged from 132.39-24732.67 nGy/h, and the calculated Annual Effective Dose Equivalent ranged from 0.16-30.33 mSv/y (depending on the activity concentration of NORM contamination). The radiation hazard indices were calculated and found to be much higher than the international values. From the obtained results, it has been concluded that the remediation/decontamination of the contaminated soils in the production sites that have activity concentration higher than 400 Bq/Kg is highly recommended. In addition, Egyptian regulations should be coherent to force companies to decontaminate NORM contamination to reduce as much as possible the radiation worker exposure.

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Section: Calculations Of Radiological Effect Absorbed Dose Ratementioning

confidence: 99%

Radiological hazards of TENORM contaminated soil at Oil and Gas Fields

Ahmed¹,

Mahmoud²,

El-Din

et al. 2019

Arab Journal of Nuclear Sciences and Applications

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Measurement of the natural radiological activity of soil samples of some general education schools in Al-Qadisiyah Governorate

Kadhim

Alkufi

Alhous

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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Right now, specific radioactivity of soil chose from Diwaniya Governorate was estimated. Ten samples of this soil were gathered. These samples were from some general education schools, where the samples were taken from diversified sites. to define the specific activity from the radioactivity 232Th, 238U and 40K, Iodide sodium system activated with Thallium 3"×3" had been used for this aim, finally for Thorium 232Th ranged between (BLD-14.652) Bq.kg−1, average (5.334) Bq.kg−1. for Uranium 238U, it is ranged between (BLD-26.187) Bq.kg−1, average (8.364) Bq.kg−1, where the result showed that radio activity of potassium 40K ranged between (346.823-536.704) Bq.kg−1 with a rate of (450.482) Bq.kg−1, The radium equivalent values ranged between (33.951-68.194) Bq.kg−1, average (50.68) Bq.kg−1, the absorbed dose rate in air ranged between (18.386- 33.995) nGy.h−1, average (25.962) nGy.h−1, External hazard index ranged through (0.091-0.184), average (0.136), Internal hazard index ranged through (0.091-0.226), average (0.159). activity concentration index ranged between (0.293-0.538), average (0.409), the observed results were below the International recommended limits.

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Gamma Spectrometric Analysis of Soil, Sediment and Water Samples of Granitic-Type Solid Mineral Mining Activities

Cited by 2 publications

References 0 publications

Radiological hazards of TENORM contaminated soil at Oil and Gas Fields

Radiological hazards of TENORM contaminated soil at Oil and Gas Fields

Measurement of the natural radiological activity of soil samples of some general education schools in Al-Qadisiyah Governorate

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