Assessment of Terrestrial Gamma Radiation in Sudan

Sam, A.K.; Ahmed, Manowar; Khangi, F.A. El; Nigumi, Y.O. El; Holm, E.

doi:10.1093/oxfordjournals.rpd.a032041

Cited by 27 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The knowledge of radionuclides distributions in the sediments acts an essential part in monitoring of environmental contamination and assessment of radiological hazard arising from natural sources. For this purpose, in the recent years many studies give an importance to the measurements of the activity concentrations of natural radionuclides and their hazard on human health [1][2][3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Levels and effects of natural radionuclides in sediment banks of Rhumel River (Northeast Algeria)

Bouhila

Benrachi

Ramdhane

2018

Cumhuriyet Science Journal

View full text Add to dashboard Cite

Activity concentrations of natural radionuclides in Boumerzoug River sediment (the main tributary of Rhumel river) have been measured using high resolution HPGe detector. The activity concentrations of the samples were range from 16.662.32 Bq/kg to 43.484.03 Bq/kg with mean value of 26.641.33 Bq/kg for 226 Ra, 20.011.98 Bq/kg to 32.713.85 Bq/kg with the mean value 25.951.46 Bq/kg for 232 Th and 81.7033.59 Bq/kg to 259.2038.80 Bq/kg with the mean value 164.5011.30 Bq/kg for 40 K. These values were used to estimate the radiation hazard indices. The absorbed dose and annual effective dose were evaluated to assess the radiation risk due to the use of these sediments.

show abstract

Section: Introductionmentioning

confidence: 99%

Levels and effects of natural radionuclides in sediment banks of Rhumel River (Northeast Algeria)

Bouhila

Benrachi

Ramdhane

2018

Cumhuriyet Science Journal

View full text Add to dashboard Cite

show abstract

“…According to this report, the soil samples in four farms (H1, H3, H4 and H6) showed an absorbed dose rate higher than the world average value. Based on the absorbed dose rate, a conversion coefficient from absorbed dose to effective dose of 0.7 and an outdoor occupancy factor of 0.2 [10,16,17], the annual effective dose was calculated using the formula:…”

Section: Water Resultsmentioning

confidence: 99%

Natural Radioactivity Levels and the Corresponding Radiation Exposure in Agricultural Environment in Hail, KSA

El-Sharkawy¹,

Al-Muqren²

2018

Arab Journal of Nuclear Sciences and Applications

View full text Add to dashboard Cite

The natural radioactivity levels in groundwater, soil and crops have been determined in seven farms at Hail region in Saudi Arabia to assess any radiological hazards to the public, and to maintain a radiological map of natural radioactivity levels in this region. The radium isotopes (226 Ra and 228 Ra) were measured in groundwater samples collected from wells in these farms, and the 228 Ra activity concentrations exceeded the national guidance level of 2.7 pCi/L set by Saudi Arabian Standards Organization (SASO) and the WHO. These relatively higher activities did not contribute to the annual effective dose rate from the ingestion of both isotopes (226 Ra and 228 Ra) in the analyzed crops, which showed lower values than the upper limit of 1 mSv/yr. The activity concentrations of 228 Ra in soils of five farms were found to be higher than the world average value reported by the (United Nations Scientific Committee on the Effects of Atomic Radiation) UNSCEAR. These relatively higher activities contributed to the absorbed dose rate in air from external gamma radiation which was higher than the world average value of 57 nGy/hr in some farms. These high activities contributed also to the annual effective dose which showed values higher than the world average value of 0.07 mSv/yr for outdoor terrestrial gamma radiation in three farms. On the basis of these results, it can be concluded that the presence of such activities in the groundwater and crops samples do not pose any radiological hazards or significant risk to the public and animals, since they drink these waters. it may be recommended that the activity levels of the combined radium isotopes in the animal products (milk and meat) and the annual effective dose should be estimated to evaluate the contribution of the 228 Ra exceeded limits in these wells.

show abstract

“…(2002) 8 Montenegrin coast (Yugoslavia) 1.5–28.4 Vukotic et al. (1998) 9 Sudan 0–18.5 Sam et al. (1997) 10 North-western Libya 0.9–1.7 Shenber (2001) 11 Riyadh (Saudi Arabia) 0–2 Al-Kahtani et al.…”

Section: Discussionmentioning

confidence: 99%

Distribution of natural radionuclides in the soils and assessment of radiation hazards in the Khrami Late Variscan crystal massif (Georgia)

Kapanadze

Magalashvili

Imnadze

2019

Heliyon

View full text Add to dashboard Cite

This study was performed to determine the distributions of radionuclides (238U, 232Th and 40K naturally occurring in Khrami Late Variscan crystal massif and soils overlapping its adjacent territory built by Neogene and Quaternary lava using a gamma-ray spectrometry with an HPGe detector. By identification of artificial radionuclide 137Cs concentration revealed the character of radioactive contamination of the area under investigation. Based on the obtained results, the radiological parameters (outdoor absorbed gamma dose rate, annual effective dose; radium equivalent activity) were estimated to assess radiation hazards caused by use of industrial materials. The difference was established between concentrations of radionuclides having emerged at the expense of Late Variscan crystal substrate and recently erupted lavas. The results were compared with similar studies conducted in different countries and with data and recommendations published by international organizations (UNSCEAR, ICRP).

show abstract

Assessment of Terrestrial Gamma Radiation in Sudan

Cited by 27 publications

References 0 publications

Levels and effects of natural radionuclides in sediment banks of Rhumel River (Northeast Algeria)

Levels and effects of natural radionuclides in sediment banks of Rhumel River (Northeast Algeria)

Natural Radioactivity Levels and the Corresponding Radiation Exposure in Agricultural Environment in Hail, KSA

Distribution of natural radionuclides in the soils and assessment of radiation hazards in the Khrami Late Variscan crystal massif (Georgia)

Contact Info

Product

Resources

About