Gamma Radiation Hazards and Risks Associated with Wastes from Granite Rock Cutting and Polishing Industries in Egypt

Fares, S.; Ashour, Ahmed; El-Ashry, M. Y.; El-Rahma, M. Abd

doi:10.32918/nrs.2012.1(53).13

Cited by 2 publications

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“…The external hazard index (Hex) is used to measure the external hazard due to the emitted gamma radiation. It was calculated by the equation from (Beretka and Mathew, 1985;Orgun et al, 2007;S. Fares, et al, 2012):…”

Section: External Hazard Index Hexmentioning

confidence: 99%

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Distribution of Radioelements and Evaluation of Radiological Hazard effects on Stream Sediments and Cataclastic Rocks of Wadi Abu Rusheid, Southeastern Desert, Egypt

El-Afandy

Mohamed

Samia

et al. 2016

GJGES

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In situ gamma and laboratory spectrometric measurements have been performed to characterise the natural radiation that emitted from the stream sediment and cataclastic rocks in Wadi Abu Rusheid, Southeastern Desert, Egypt. The results allowed us to delineate the origins and distributions of these natural radionuclides on the study area. Consequently, it can be possible to avoid any possible environmental impacts from these rocks and/or raw materials of high intensity of natural radiation sources. In situ gamma and laboratory spectrometric measurements illustrate that the natural radioactivity in Abu Rusheid area are very high, because this area contains a distinctive occurrence for uranium mineralization. Measured radioelement values for stream sediment and cataclastic rocks are higher than the recommended values for safety if used as building materials.

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Section: External Hazard Index Hexmentioning

confidence: 99%

“…The internal hazard index (Hin) is used to control the internal exposure to 222 Rn and its radioactive progeny. It is given by the following equation (Beretka and Mathew, 1985;Orgun et al, 2007;S. Fares, et al, 2012):…”

Section: Internal Hazard Index Hinmentioning

confidence: 99%

Distribution of Radioelements and Evaluation of Radiological Hazard effects on Stream Sediments and Cataclastic Rocks of Wadi Abu Rusheid, Southeastern Desert, Egypt

El-Afandy

Mohamed

Samia

et al. 2016

GJGES

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Radioactivity and Risk Assessment with Uncertainty Treatment for Analysis of Black Sand Minerals

Abdel‐Rahman

Sabry

Khattab

et al. 2020

Zeitschrift anorg allge chemie

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Precise radiological analysis of environmental, ores, nuclear materials and minerals samples is of great value for monitoring and surveillance objectives. The information deduced from the analysis can be used to identify the origin and nature of the accompanied activities. This work focuses on analysis of some black sand ore samples to identify and quantify their radioisotopes and potential risk. The analysis can provide useful information about the environmental transport mechanism and about the sources of radionuclides in the studied area; Rashid city coast, Egypt. To achieve this target, a Non‐destructive gamma spectrometer (NDGS) was used to trace and amount the radioisotopes types and activities. The efficiency was calculated with uncertainty treatment. The specific activity with uncertainty assessment of 238U, 232Th decay series and 40K of these samples were varied from 72.2 to 252.4 with average value 111 ± 25 Bq·kg–1, 94.2 to 579.8 with average value 140 ± 22 Bq·kg–1 and 427.9 to 527.5 with average value 475 ± 36 Bq·kg–1 respectively. The mineralogical signature of the analyzed samples (XRD) indicates that the samples are mainly composed of ilmenite, zircon, rutile, sphene and monazite. The potential risk assay shows that the hazard parameters of these samples; the Absorbed Gamma Dose Rate (AGDR), Gamma Activity Index (Iγ), Annual Effective Dose Rate Equivalent (AEDRE), Radium equivalent, External and Internal Hazard Index (Hex and Hin) are of specific characteristics. The total absorbed gamma dose rate and the annual effective dose due these samples were found to be with average values 158 ± 24 (nGy/h) and 195 ± 29 (μSv/y) which are higher than the world average value of 59 nGy/h and 70 μSv/y respectively. The results obtained are important to establish baseline levels to detect any upcoming changes due to any activities. It can be observed that the studied area has elevated thorium and uranium content. The relatively high dose rate will be considered as a spa for the physical therapy such as treatment of some skin diseases and rheumatoid.

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Gamma Radiation Hazards and Risks Associated with Wastes from Granite Rock Cutting and Polishing Industries in Egypt

Cited by 2 publications

References 0 publications

Distribution of Radioelements and Evaluation of Radiological Hazard effects on Stream Sediments and Cataclastic Rocks of Wadi Abu Rusheid, Southeastern Desert, Egypt

Distribution of Radioelements and Evaluation of Radiological Hazard effects on Stream Sediments and Cataclastic Rocks of Wadi Abu Rusheid, Southeastern Desert, Egypt

Radioactivity and Risk Assessment with Uncertainty Treatment for Analysis of Black Sand Minerals

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