Radiological impact of natural radioactivity in Egyptian phosphate rocks, phosphogypsum and phosphate fertilizers

El-Bahi, S.M.; Sroor, A.; Mohamed, Gehan Y.; Elgendy, Noha

doi:10.1016/j.apradiso.2017.02.031

Cited by 71 publications

(30 citation statements)

References 37 publications

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“…Excess lifetime cancer risk measures the additional cancer risk induced by exposure to ionizing radiations. Based on the calculated values of AED, ELCR is calculated using equation [26,27]:…”

Section: Excess Lifetime Cancer Risk (Elcr)mentioning

confidence: 99%

Effect of Using Chemical Fertilizers on Natural Radioactivity Levels in Agricultural Soil in the Iraqi Kurdistan Region

Azeez¹,

Mansour²,

Ahmad³

2020

Pol. J. Environ. Stud.

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In this study, the effect of the use of chemical fertilizers on natural radioactivity levels in agricultural soil was investigated. For this purpose, virgin and agricultural (fertilized) soils were collected from Erbil city, the capital of the Iraqi Kurdistan Region. Gamma-ray spectrometry was applied using a high-purity germanium (HPGe) detector to determine the activity concentrations of 226 Ra, 232 Th, and 40 K in soil samples. The results showed that the range of activity concentrations for 226 Ra, 232 Th, and 40 K in virgin soils are (10.6-16.2) Bq/kg, (8.8-10.7) Bq/kg, and (241.8-340.9) Bq/kg, respectively, while the range of activity concentrations for 226 Ra, 232 Th, and 40 K in agricultural soils are (11.9-18.2) Bq/kg, (8.8-12.4) Bq/kg, and (247.7-338.3) Bq/kg, respectively. The obtained values of activity concentration show that the application of chemical fertilizers elevated the natural radioactivity level of the soil. The radiological hazard parameters were also calculated in both the virgin and agricultural soil samples and compared with the international dose safety limit in the soil.

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Section: Excess Lifetime Cancer Risk (Elcr)mentioning

confidence: 99%

Effect of Using Chemical Fertilizers on Natural Radioactivity Levels in Agricultural Soil in the Iraqi Kurdistan Region

Azeez¹,

Mansour²,

Ahmad³

2020

Pol. J. Environ. Stud.

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“…Furthermore, components such as Fe 2 O 3 , SiO 2 , Al 2 O 3 , etc. The current research on this area is only focus on the investigation of the effect and detection method of radioactive fluoride [16,17]. Nevertheless, some constituents such as K 2 SiO 3 and Ca 2 SiO 4 in PG were useless [14].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, many constituents such as fluoride and radioactive substance in PG residue, are detrimental to environment, and will be the main constraint on resource utilization of PG [15]. The current research on this area is only focus on the investigation of the effect and detection method of radioactive fluoride [16,17]. In PG decomposition residue, different chemical components are formed in different decomposition conditions [18].…”

Section: Introductionmentioning

confidence: 99%

Analyses on the application of components in the phosphogypsum decomposition residue: Based on the study of migration and conversion rules of elements in the purification procedure of CaO

Dai

Xie

et al. 2017

Env Prog and Sustain Energy

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Phosphogypsum (PG), which is a solid waste in phosphate fertilizer industry, is harmful to the environment. The pyrogenetic decomposition is mainly used in the utilization of PG, and PG decomposition residue is produced in the decomposition process. In this paper, the migration and conversion rules of elements (Al, Si, P, K, Ca, and Fe) in the purification procedure of CaO in PG decomposition residue was investigated. The acid–base method was used to purify CaO. Content and chemical forms of elements in the purification procedure were analyzed by many characterization methods such as SEM and EDS. And moreover, changes on chemical forms of elements were supported theoretically by some ternary phase diagrams, which were made by the FactSage thermodynamics software. The result showed that, the soluble silicon dioxide and the acid‐insoluble material in PG decomposition residue were effectively removed by using the acid–base method. Meanwhile, impurities separated from CaO and the CaO sample were produced in the experiment, the former can be used to produce the building materials, refractories, insulating materials in various industrial fields, and CaO sample could be used as the filler, building materials, decolorant, etc. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 1020–1030, 2018

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“…The radioactive elements of various radionuclides in rocks may affect the health. Thus, numerous studies have been performed in many regions of the world, and the obtained data can be used to establish if the local controls are needed [3]- [10]. The major objective of this work is to estimate the radiological effects of the specific activities of 226 Ra,232 Th and 40 K in some rock samples collected from a part of the south west in Saudi Arabia (Albaha region).…”

Section: Introductionmentioning

confidence: 99%

Gamma Radiation Measurements of Naturally Occurring Radioactive in Igneous Rocks and Its Radiological Complications

Al-Zahrani¹

2017

WJNST

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The concentrations of natural radioactivity were measured in igneous rock samples collected from Albaha region in the south west of Saudi Arabia. A high purity germanium (HPGe) detector was used for analysis. . The external and internal indices average values were 0.39 and 0.49, respectively. The average results obtained in this study are lower than the average national and world recommended values, therefore, there is no health risk to the populace of the area. This study provides a baseline map of background radioactivity levels in the Saudi environment and will be used as reference information to assess any changes in the level background due to geological processes.

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Radiological impact of natural radioactivity in Egyptian phosphate rocks, phosphogypsum and phosphate fertilizers

Cited by 71 publications

References 37 publications

Effect of Using Chemical Fertilizers on Natural Radioactivity Levels in Agricultural Soil in the Iraqi Kurdistan Region

Effect of Using Chemical Fertilizers on Natural Radioactivity Levels in Agricultural Soil in the Iraqi Kurdistan Region

Analyses on the application of components in the phosphogypsum decomposition residue: Based on the study of migration and conversion rules of elements in the purification procedure of CaO

Gamma Radiation Measurements of Naturally Occurring Radioactive in Igneous Rocks and Its Radiological Complications

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