Document Details
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Document Type |
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Article In Conference |
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Document Title |
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Concentrations of natural and man-made radioactivity soil and ground water in Al-Madinah Al-Monawarah تركيزات العناصر المشعة الطبيعية والصنعية في عينات تربة ومياه جوفية من المدينة المنورة |
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Subject |
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Nuclear Physics |
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Document Language |
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English |
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Abstract |
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Al-Madinah Al-Monawarah lies around latitude 39˚36'00" , longitude 24˚28'00" , altitude 624 m . Ten surface soil samples were collected from Al-Madinah Al-Monawarh province with a template 30×30×15 cm. Samples were analyzed by atomic absorption spectrometer for Aluminum (Al) , Iron (Fe) and Calcium (Ca) concentrations in percent, Lead (Pb) and Arsenic (As) in ppm. The concentrations range for Al from (4.48 -7.65%), Fe from (3.08 -4.92 5%) , Ca from (1.66 -10.60 %) , Pb from (14 -27 ppm) and As from (10.5 -30.7 ppm) . Also XRD spectrometry was applied for the chemical and mineral composition, the major and minor composition is ALBITE , CALCITE , CLINOCHLORE , MICROCLINE , QUARTZ . Gamma- ray spectrometer based on HPGe crystal was applied for the concentrations in Bq/kg dry weight , for ((238)U and (226)Ra series) from 7.01 to 15.55 Bq/kg, (232)Th and (228)Ra series) from 5.23 to 21.8Bq/kg, (40)K concentrations range from (64.6 to 754.2 Bq/kg). The man-made (137)Cs was observed in some samples. The radium equivalent Bq/kg was calculated , and the absorbed dose rate nGy/h for each sample was calculated one meter above the earth. It is found that the values of the absorbed dose are in the accepted range put by EPA (Environmental Protection Association).
Four underground water samples from the study area Al-Khief
(Western province of Saudi Arabia) were analyzed by both an atomic absorption spectrometer for the ; Ca , Na , Mg , K , Fe , Al , Cs , Hg , Bi , Pb and U concentrations, and a HPGe gamma-ray spectrometer system for the concentrations of radioactive nuclides of the (226)Ra and ( 232)Th series and (40)K from the absorbed dose which calculated for the age categories ; <1y , 1-2y , 2-7 y, 7-10y and > 17y. |
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Conference Name |
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The 2011 International Conference on Water, Energy and Environment |
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Duration |
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From : 18/12/1432 AH - To : 21/12/1432 AH
From : 14/11/2011 AD - To : 17/11/2011 AD |
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Publishing Year |
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1432 AH
2011 AD |
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Number Of Pages |
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9 |
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Article Type |
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Article |
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Conference Place |
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American University of Sharja, UAE |
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Organizing Body |
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College of Engineering |
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Added Date |
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Saturday, May 19, 2012 |
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Researchers
| عفاف أحمد فقيها | Fakeha, Afaf Ahmed | Investigator | Doctorate | sabrytaha2000@yahoo.com |
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