Radiological Hazard Assessment of Radionuclides in Sediment Samples of Tigris River in Mosul city, Iraq

Najam, Laith Ahmed; Wais, Taha Yaseen

doi:10.21608/ajnsa.2021.72644.1464

Cited by 6 publications

(3 citation statements)

References 13 publications

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“…The samples were then placed on a plastic plate in a suitable place to air dry, after which the samples were placed in an electric oven at a temperature of 100ºC for two hours to rid the samples of moisture, After complete drying, the samples were homogenized by grinding them with an electric mill and then sifted with a mesh sieve with dimensions of 0.75 mm. Each sample was placed in a sealed plastic container weighing 1 kg, and then the samples were stored for at least 4 weeks to achieve a permanent balance between the radionuclides and their daughters [8] .…”

Section: Sample Collection and Preparation Techniquementioning

confidence: 99%

Evaluation of natural radioactivity and radiological hazard indicators in soil samples from the environment of Al-Kasik oil refinery in Nineveh Governorate, Iraq.

Najam

Marie

2022

Arab Journal of Nuclear Sciences and Applications

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The specific activity of 226 Ra, 232 Th and 40 K in the soil samples collected from Al-Kasik Oil Refinery in Nineveh Governorate, Iraq, were assessed by 𝜸-spectroscopy analysis using a NaI(Tl). Results show that the average of the measured specific activities of 226 Ra, 232 Th and 40 K are 19.80±0.948Bq/kg,13.65±1.021Bq/kg and 213.71±8.896Bq/kg, respectively. The average specific activity of these radionuclides was compared with the world average value. The radiological hazard indices were calculated for each of 226 Ra, 232 Th and 40 K and compared with the internationally recommended standard exposure limits, as they were within those limits. The study showed that the soil in the study area may not pose a significant risk to workers and residents close to the area. However, further studies and investigations into the level of exposure of flora and fauna in that area are necessary.

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Section: Sample Collection and Preparation Techniquementioning

confidence: 99%

Evaluation of natural radioactivity and radiological hazard indicators in soil samples from the environment of Al-Kasik oil refinery in Nineveh Governorate, Iraq.

Najam

Marie

2022

Arab Journal of Nuclear Sciences and Applications

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“…eq (Bq/l) = A Ra + 1.43 A Th + 0.077A k 2 Where ARa, ATh, and AK are the specific activity of 226 Ra, 232 Th, and 40 k in units of Bq/l. The maximum universally permitted value of equivalent radium activity (Raeq) is 370 Bq/l 22 .…”

Section: 𝐴 = (𝑁−𝐵)±√𝑁−𝐵 𝜀 𝛾 𝐼 𝛾 𝑡 𝑚mentioning

confidence: 99%

Heat Production Rate and Radiation Hazard Indices from Radioactive Elements in Different Types of Natural Water in Nineveh Governorate, Iraq.

Al-sofy

Al-jomaily

2023

Baghdad Sci.J

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The current study sheds light on the measurement and estimation of the radioactivity of radionuclides (238U, 226Ra, 232Th, and 40k) in natural waters of different regions of Nineveh Governorate in Iraq.15 samples were collected from different sources of natural waters, where gamma-ray spectroscopy was used using NaI)TI) sodium iodide detector to determine the concentration of radioactivity in the samples. According to the results, the radioactivity concentration in the tested water sample were ranged from 0.36 ± 0.04-1.57 ± 0.09with an average value of 0.69 ± 0.06 Bq/l for 238U, and 2.9 ± 0.02-0.88 ± 0.03 with an average value of 0.65 ± 0.03 Bq/l for 226Ra Bq/l, and 0.48 ± 0.04-1.36 ± 0.06 with an average value of 0.88 ± 0.05 Bq/l for 232Th, while for 40K 13.00 ± 0.69-36.89 ± 1.12 with an average value of 25.1 ± 0.95 Bq/l, respectively. The results obtained from the water samples are below the safe and standard limits established by UNSCEAR. In addition to calculating the radiological hazard indicators that included Radium equivalent (Raeq), air absorbed dose rate (Dγ), effective annual equivalent dose rate (AEDE), indoor and outdoor radiation hazard (H) indices, lifetime cancer risk (ELCR), gonadotropin equivalent dose (AGDE), and ideal level index of gamma rays (Iγ) has been calculated. To verify its deleterious character. On the other hand, the results showed that the rate of heat production values ranged between 0.006-0.0015 µW/m3, which indicates a low rate of heat production and does not affect the temperature of the Earth's crust. Finally, In addition to physicochemical parameters such as PH, dissolved solids TDS, and electrical conductivity Ec. All tested data are within the permissible limit of WHO standards. The results of the current study can be used to provide essential baseline data for future epidemiological investigations and surveillance programs in the areas under study.

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“…The emission of radiation from the disintegration of an unstable nucleus by less elementary particles (α or β particles) is known as radioactivity (Abdullah and Ahmed, 2012), or emission of electromagnetic waves (γ ray) (Wais and Najam, 2021).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Radioactivity in Soil Sample from Al-Hadbaa Cement Plant in Nineveh Governorate, Iraq

Najam,

Yaseen

2023

ARO

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The fundamental goal of this study is to measure the level of radioactivity in the soil of the area around Al-Hadbaa cement plant, also to evaluate the radiological hazard of radionuclide, gamma-spectroscopy with an HPGe detector with the crystal diameter of 70.6 mm and length of 70 mm has been used to estimate the specific activity of natural radionuclides 226Ra, 232Th, 40K, and artificial radionuclides 137Cs in the fifteen soil samples collected. The results show that the average concentration of specific activity of 226Ra, 232Th, 40K, and 137Cs was 11.17 ± 1.69, 13.38 ± 0.72, 158.36 ± 5.35 Bq/kg, and 1.52 ± 0.19 Bq/kg, respectively. The average specific activity of these radionuclides is discovered to be lower than the global average which is 33 Bq/kg for 226Ra, 30 Bq/kg for 232Th, and 400 Bq/kg for 40K. Radiological hazard indices are determined according to the activity concentration of the radionuclides in the area under study. The outcome of the radiological hazard index is within the globally recognized limit proposed by UNSCEAR which is 1000 μSv/y for annual effective dose and 290 × 10-6 for cancer risk, so it is possible to conclude that there are no radiological hazards as a result of radiation exposure to the workers working in the cement plant as well as the organisms living in the region.

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Radiological Hazard Assessment of Radionuclides in Sediment Samples of Tigris River in Mosul city, Iraq

Cited by 6 publications

References 13 publications

Evaluation of natural radioactivity and radiological hazard indicators in soil samples from the environment of Al-Kasik oil refinery in Nineveh Governorate, Iraq.

Evaluation of natural radioactivity and radiological hazard indicators in soil samples from the environment of Al-Kasik oil refinery in Nineveh Governorate, Iraq.

Heat Production Rate and Radiation Hazard Indices from Radioactive Elements in Different Types of Natural Water in Nineveh Governorate, Iraq.

Evaluation of Radioactivity in Soil Sample from Al-Hadbaa Cement Plant in Nineveh Governorate, Iraq

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