Estimation of radiation hazard indices from sedimentary rocks in Upper Egypt

被引：33

作者：

Abbady, AGE ^{[1
]}

机构：

[1] S Valley Univ, Fac Sci, Dept Phys, Qena, Egypt

来源：

APPLIED RADIATION AND ISOTOPES | 2004年 / 60卷 / 01期

关键词：

radioactivity; radium equivalent; sedimentary rocks; dose assessment;

D O I：

10.1016/j.apradiso.2003.09.012

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The radiological effects from 103 samples of sedimentary rocks from Upper Egypt were estimated. The mean values of radium equivalent and representative level indices in G. Sarai area are 315.3 Bq/kg and 2.2 while in G. Anz area are 299.4 Bq/kg and 2.1, respectively. The average absorbed dose rate are 136 and 141.4 nGy/h for G. Anz and G. Sarai, respectivelv. These average values give rise to a mean effective dose 166.8 and 173.5 muSv/y which are just about 16.7% and 17.4% of the 1.0mSv/y recommended by the International Commission on Radiological Protection (Radiation Protection: 1990 Recommendations of the International Commission on Radiological Protection, Pergamon Press, Oxford. 1990) as the maximum annual dose to members of the public. The results indicate no radiological anomaly. The data presented here will serve as a baseline survey for primordial radionuclide concentrations in rocks of the areas. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：111 / 114

页数：4

共 23 条

[1]

ABBADY AGE, 1994, THESIS ASSIUT U EGYP

[2]

ADAMS JA, 1972, NATURAL RAD ENV, V2

[3] Distribution of natural radioactivity in rocks from Ikogosi-Ekiti, Southwestern Nigeria and its radiological implications [J].

Ajayi, OS .

HEALTH PHYSICS, 2000, 79 (02) :192-195

[4] The 226Ra, 232Th and 40K activities in beach sand minerals and beach soils of Cox's Bazar, Bangladesh [J].

Alam, MN ;

Chowdhury, MI ;

Kamal, M ;

Ghose, S ;

Islam, MN ;

Mustafa, MN ;

Miah, MMH ;

Ansary, MM .

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 1999, 46 (02) :243-250

[5]

[Anonymous], 2017, Sources, Effects and Risks of Ionizing Radiation. United Nations Scientific Committee on the Effects of Atomic Radiation. UNSCEAR 2016 Report to the General Assembly, with Scientific Annexes

[6]

BECK HL, 1972, 258 AEC HASL

[7] NATURAL RADIOACTIVITY OF AUSTRALIAN BUILDING-MATERIALS, INDUSTRIAL-WASTES AND BY-PRODUCTS [J].

BERETKA, J ;

MATHEW, PJ .

HEALTH PHYSICS, 1985, 48 (01) :87-95

[8]

FALHAM OM, 1995, THESIS S VALLEY U

[9]

HAMILTON EI, 1965, APPL GEOCHRONOLOGY

[10]

HELBIG K, 1996, HDB GEOPHYS EXPLORAT, V18, pCH5

← 1 2 3 →