干旱区生态环境知识资源中心(Arid): Spatial Distributions and Risk Assessment of the Natural Radionuclides in the Granitic Rocks from the Eastern Desert, Egypt

Arid

DOI	10.3390/min9070386
	Spatial Distributions and Risk Assessment of the Natural Radionuclides in the Granitic Rocks from the Eastern Desert, Egypt
	El-Gamal, Hany 1; Sidique, Essam 2; El-Haddad, Mervat 3
通讯作者	El-Gamal, Hany
来源期刊	MINERALS
ISSN	2075-163X
出版年	2019
卷号	9 期号:7
英文摘要	This paper investigates the distribution of four natural radioisotopes U-238, Ra-226, Th-232 and K-40 in one hundred twenty-five granitic samples covering sixteen mountainous areas situated at the northern, central and southern parts of the Eastern Desert of Egypt (EDE). The concentrations of the examined radioisotopes in the collected samples were recognized utilizing a HPGe detector based gamma spectrometry. The average concentrations of these radioisotopes were higher when compared with the worldwide reference values. The radiation risk indicators including the radium equivalent activity index (Ra-eq), external and internal hazard indicators (H-ex and H-in), external and internal level indicators (I-alpha and I-gamma), absorbed dose rate (ADR), annual effective dose rate (AEDR), annual gonadal dosage equivalent (AGDE), and excess lifetime cancer risk (ELCR), associated with these radioisotopes have been calculated and compared with their recommended global values and safety limits. These indicators showed that the granites from most studied areas exceeded the universal standards pointing to the difficulty of using them as building materials. This study together with future investigations will serve to develop an essential database for future environmental monitoring surveys.
英文关键词	granite EDE natural radioactivity hazard indices HPGe
类型	Article
语种	英语
国家	Egypt
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000478593300066
WOS关键词	NUBIAN SHIELD ; RADIOACTIVITY ; AREA ; HAZARDS ; SAMPLES ; HF
WOS类目	Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing
WOS研究方向	Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217626
作者单位	1.Assiut Univ, Fac Sci, Phys Dept, Assiut 71516, Egypt; 2.New Valley Univ, Fac Sci, Phys Dept, El Kharga 72511, Egypt; 3.Assiut Univ, Fac Sci, Geol Dept, Assiut 71516, Egypt
推荐引用方式 GB/T 7714	El-Gamal, Hany,Sidique, Essam,El-Haddad, Mervat. Spatial Distributions and Risk Assessment of the Natural Radionuclides in the Granitic Rocks from the Eastern Desert, Egypt[J],2019,9(7).
APA	El-Gamal, Hany,Sidique, Essam,&El-Haddad, Mervat.(2019).Spatial Distributions and Risk Assessment of the Natural Radionuclides in the Granitic Rocks from the Eastern Desert, Egypt.MINERALS,9(7).
MLA	El-Gamal, Hany,et al."Spatial Distributions and Risk Assessment of the Natural Radionuclides in the Granitic Rocks from the Eastern Desert, Egypt".MINERALS 9.7(2019).