Assessment of Natural Radioactivity Levels and Radiation Hazards of Scrap Yard Soil Samples at Al-Tuwaitha Nuclear Site (Iraq)

Al-Bakhat, Yousif M. Zayir; Mansour, Hazim Louis; Karkosh, Huda Nassar

doi:10.1166/mat.2018.1488

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where _ D is the dose rate, 8760 are the hours in a year, 0.7 SvGy −1 is the conversion coefficient that changes absorbed dose in the air to the effective dose, and 10 − 6 is a factor that converts nano into milli [22,28]. Finally, 0.6 and 0.4 are the estimated average indoor and outdoor occupancy factors in Kenya [5,7,29].…”

Section: Annual Effective Dose Ratementioning

confidence: 99%

Assessment of Levels of Natural Radioactivity in Sand Samples Collected from Ekalakala in Machakos County, Kenya

Munyao

Ketui

Otieno

et al. 2020

The Scientific World Journal

View full text Add to dashboard Cite

Construction sand is naturally polluted with radionuclides of terrestrial origin. In this study, specific activities of 238U, 232Th, and 40K in 30 sand samples collected along the Ekalakala River, Machakos County, Kenya, were measured using a high-purity germanium γ-ray spectrometer. The specific activities ranged between 9.7 Bqkg−1 and 24.0 Bqkg−1, 11.5 Bqkg−1 and 26.2 Bqkg−1, and 820 Bqkg−1 and 1850 Bqkg−1 for 238U, 232Th, and 40K, respectively. While the mean specific activities for 238U and 232Th were less than half of the world average values of 33 Bqkg−1 and 45 Bqkg−1, respectively, the average specific activity of 40K was significant since it was three times the global mean value of 420 Bqkg−1. A calculated absorbed radiation dose rate for the sand varied between 46.8 nGyh−1 and 94.2 nGyh−1 with a mean of 68.5 ± 13.3 nGyh−1. This is not significantly different from the world average dose rate of 60 nGyh−1 for geological samples. The AEDR and Hex had maximum values of 0.29 mSvy−1 and 0.52, respectively, both within the recommended limits of radiation exposure for members of the general public. Based on these results, the sand from Ekalakala River does not pose significant health implication to the sand harvesters as well as the inhabitants of the houses constructed using this sand.

show abstract

Section: Annual Effective Dose Ratementioning

confidence: 99%

Assessment of Levels of Natural Radioactivity in Sand Samples Collected from Ekalakala in Machakos County, Kenya

Munyao

Ketui

Otieno

et al. 2020

The Scientific World Journal

View full text Add to dashboard Cite

show abstract

Assimilation of natural Radionuclides in the wheat plant from cultivated soil

Al-Saedi

Al-Saadie

Mouhamad

et al. 2021

View full text Add to dashboard Cite

The intake of naturally nuclides 238U, 232Th, and 40K by wheat crop from two different fertilization soils of Iraq was studied under natural farm conditions. The overall mean of soil to wheat cereal transfer factors (TF) was studied and observed to be in the range of 0.6 × 10-3 to 0.70 × 10-3 for 238U, 0.11 × 10-3 to 0.13 × 10-3 for 232Th and 0.054 to 0.055 for 40K. The calculated values of TF for wheat grain denote that 40K are the significant radionuclides that are transferred in grain. This evaluation is most important for the production of foodstuffs with low contents of radionuclides. The assimilation of radionuclides by consuming wheat cereals from the farms studied gives a small fraction to the total annual ingestion dose received by a person due to naturally existent radioactivity material in the environment. This study proves that the natural radioactivity and Ingestion effective dose was lower than the safe, which the total of the dose received from 238U and 232Th due to consumption of wheat grains alone from fertilized field 0.056 and 0.045 mSv y-1 from the unfertilized field total ingestion dose, the dose received from 40K due to the consumption from the unfertilized and fertilized field was 0.0102 and 0.0137 respectively. The dose values were less than the limit value of 0.30 mSv y-1. Therefore, the consumption of these foods has no health risks. This process may help to obtain basics on radiological health regulations The activity concentration of natural radionuclides 238U, 232Th, and 40K in fertilized and unfertilized soil and wheat plants growing into is statistically significant at 1% level of significance using an independent t-test.

show abstract

Assessment of Natural Radioactivity Levels and Radiation Hazards of Scrap Yard Soil Samples at Al-Tuwaitha Nuclear Site (Iraq)

Cited by 2 publications

References 0 publications

Assessment of Levels of Natural Radioactivity in Sand Samples Collected from Ekalakala in Machakos County, Kenya

Assessment of Levels of Natural Radioactivity in Sand Samples Collected from Ekalakala in Machakos County, Kenya

Assimilation of natural Radionuclides in the wheat plant from cultivated soil

Contact Info

Product

Resources

About