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Article
Estimation of Radiation levels due to Organic Agricultural Fertilizers

Authors: A. H. Farhan --- H. H. Hussain
Journal: Journal of College of Education مجلة كلية التربية ISSN: 18120380 Year: 2011 Issue: 6 Pages: 509-521
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

The usage of organic fertilizers in Iraq is increased becauseof the land reclamation and agriculture activities. The ore of someorganic fertilizers contains various a mounts of natural radioactiveelements such as 238U, 232Th and 40K. For this reason, organicfertilizers are considered one of many sources of radionuclide andradioactivity in the environment. So, it becomes necessary to studythe naturally occurring radioactive materials (NORMs). In orderto assess the level index for organic fertilizers, the specificactivities of 238U, 232Th and 40K were measured by using a gammaray spectrometer based on a NaI(Tl) detector.The results show that the specific activities of 238U, 232Th and40K are (11.53-68.71 Bq/kg), (10.78-52.33 Bq/kg) and (165.21-3592.78 Bq/kg) respectively. The radium equivalent activity werealso calculated and found to vary from (155.40-2842.86 Bq/kg),the radium equivalent activities were lower the world average ineight samples. In general, the results indicated that the highestlevel of radium equivalent activity was in animal organicfertilizers.The level index of organic fertilizers was calculated and themaximum value of level index is 2.91 which is found in localanimal organic fertilizer, while the minimum value is 0.3 which isfound in imported plant organic fertilizer.


Article
DETERMINATION OF RADIONUCLIDE'S CONCENTRATION AND RADIOLOGICAL RISK IN THE SOIL SAMPLES OF MADENAT AL-ELEM UNIVERSITY COLLEGEUSING GAMMASPECTROSCOPY

Authors: JABBAR H. JEBUR --- SAEEDS.KAMOON
Journal: Journal of Basrah Researches (Sciences) مجلة ابحاث البصرة ( العلميات) ISSN: 18172695 Year: 2019 Volume: 45 Issue: 2A Pages: 230-241
Publisher: Basrah University جامعة البصرة

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Abstract

This research aims to calculate the concentration of radionuclide's in the soil samples, collected from in and around madenat Al-Elem university area using Gamma- rays spectroscopy with high purity germanium detector (HpGe) with resolution of (2.3keV) for the energy of the 60Co (1.332 MeV). The 25 soil samples were collected from this area, the average activity concentrations of 238U, 232Th, 40K and 137Cs in the samples were found to be (38.089±6.172 , 35.147±5.93 , 700.109±26.46 and 3.854±1.963) Bqkg respectively. The calculated radium equivalent (Raeq) was (142.536±11.939) Bq/kg, the absorbed dose rate(68.137±8.254nGy / h), the external annual effective dose of exposure rate 〖AEDE〗_outwas(0.332mSv/y),〖 AEDE〗_inwa (0.083mSv /y), the gamma index (I) for soil samples was(1.073),the value of the external risk index (Hex) was (0.487) and the internal risk index (Hin) was (0.384).Thus , the present results revealed that the area is safe as far as the health effect are concerned ,but this area continuo's monitoring in future.


Article
Radiological hazard Assessment Due to Natural Occurring Radioactive Materials (NORM) in Oil and Gas Production Industry –East Baghdad Oil Field
تقييم المخاطر الاشعاعية نتيجة للمواد المشعة المتواجدة طبيعيا في مصنع انتاج النفط والغاز- حقل نفط شرق بغداد

Authors: Ali K. K كمال كريم علي --- Ibraheem D. B. ضحى بشير ابراهيم
Journal: Iraqi Journal of Science المجلة العراقية للعلوم ISSN: 00672904/23121637 Year: 2017 Volume: 58 Issue: 1A Pages: 115-126
Publisher: Baghdad University جامعة بغداد

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Abstract

Concentration of NORM then radiological hazard indices were investigated and assessed in different stages of oil and gas production industry that belongs to East Baghdad Oil Field. Sixteen samples of different types of materials were collected representing oil and gas production from first stage to final stage. The samples are prepared then sent to Radiation Protection Center (RPC) / Ministry of Environment for radioactivity analysis using gamma ray spectrometry system based on HPGe. The results show that max value of Ra-226 is 252.4 Bq/kg in sediment sample collected from the final stage of water treatment before it is transferred to disposal well and min value is 1.2 Bq/kg in formation water. The max. activity of Th-232 is 79.4Bq/kg also in sediment sample and the min value 2.9 Bq/Kg in crude oil in storage tank while, the max. value for K-40 is 529.6 Bq/Kg in burning stage (burn pit) and the min value is 2.8Bq/kg in Pre-treatment crude oil. The ambient exposure dose values near the sampling locations were recorded using dosimeter type GMC-300. The results are corresponding with the values of NORMs in the locations. The ambient gamma rates in the study area range between (0.04-0.22) µSv/h corresponding to (57-314 nGray/h). Most locations have values above the average worldwide value of (58 nGray/h). NORMs are caused absorbed dose in max. contribution (79%) to the total ambient gamma dose. Radium caused the max. contribution among the others. All the hazard indices indicate that most of the sampling locations have indices acceptable and with no hazard.

جرى قياس تراكيز النويدات المشعة المتواجدة طبيعيا ومعاملات المخاطر الاشعاعية لموقع مصنع انتاج النفط والغاز التابع لحقل شرق بغداد. تم اختيار نماذج مختلفة تمثل مراحل انتاج النفط والغاز في موقع المصنع وحٌضَرت النماذج وقيس النشاط الاشعاعي بمختبرات مركز الوقاية من الاشعاع/وزارة البيئة باستخدام منظومة تحليل اطياف كاما المستندة الى عداد الجرمانيوم عالي النقاوة. بينت النتائج ان اعلى قيم لنشاط الراديوم-226 كانت 252.4 بكريل/كغم في نموذج الرواسب من المرحلة النهائية من عملية معالجة المياه وفصل النفط قبل انتقاله الى ابار التصريف بينما اقل قيمة للراديوم تم قياسها في نموذج المياه المكمنية(1.2 بكريل/كغم) . بينما تراوحت تراكيز الثوربوم-232 والبوتاسيوم- 40 بين (2.9-79.4) بكريل/كغم و(2.8 -529.6) بكريل /كغم على التوالي. تتراوح جرع التعرض كاما المحيطية في منطقة الدراسة بين(0.04-0.22)مايكروسيفرت/ساعة والتي تعادل (57-314)نانوكراي/ساعة. كانت معظم مواقع النمذجة ذات جرع اشعاعية تقترب او اعلى من معدل الجرع العالمية(58 نانوكراي/ساعة). كانت مساهمة النويدات المشعة المتواجدة طبيعيا في اعلى قيمها تمثل(79%) من الجرعة المحيطية الكلية وكانت مساهمة الراديوم هي الاكبر من بين النويدات الاخرى. بينت معاملات المخاطر الاشعاعية ان معظم المواقع ذات قيم معاملات مقبولة ولا تشكل مخاطر اشعاعية.


Article
(28)Study of Environmental of Some Soil Samples from Kufa in Najaf city, Iraq

Author: حكيم جبار
Journal: Al-Kufa University Journal for Biology مجلة جامعة الكوفة لعلوم الحياة ISSN: 20738854 23116544 Year: 2009 Volume: 1 Issue: 2 Pages: 204-210
Publisher: University of Kufa جامعة الكوفة

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Abstract

The parameters of environmental in some selected samples from Kufa in Najaf city was determined and discussed. Five soil samples were collected from:1- Housing grouped for kufa cement factory 2- Kufa river bottom3- Kufa bridge closeness (Kufa Environment office)4- Kenda-5- Gazwyniha We implemented a laboratory apparatus based on a NaI (Tl) γ-ray spectrometer, where connect the scintillation detector with multichannel analyzer.Results showed the presence of natural radionuclide Ra226 in soil samples. In order to evaluate the radiological hazard of the natural radioactivity, mean resulted Dose has been calculated. Chemical analysis for concentration of NO2-1, NO3-1 and PO4-3 the range of values (0.701-2.246),(2.55-13.236),(0.00-0.003)ppm respectively, also carried out along with the measurement of electrical conductivity and pH of the soils samples; the values range (272-9360) µScm-1 and (7.51-8.11), respectively.


Article
Measuring the specific concentration of the radioactive isotopes of 40K, 137Cs and (224Ra, 226Ra, 228Ra) for selected samples from Basrah Governorate and the northwest of the Arabian Gulf
قياس التركيز النوعي للبوتاسيوم40K والسيزيوم 137Cs ولنظائر الراديوم المشعة (224Ra, 226Ra, 228Ra) لعينات مختارة من محافظة البصرة وشمال غرب الخليج العربي.

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Abstract

The specific concentration of radioisotopes of Potassium 40K; Cesium 137Cs and Radium (224Ra ,226Ra, 228Ra) have been identified for soil, sediment, fish samples (Liza abu, Liza klunzingeri, Brachirus orientalius, Tylosurus crocodilus, Cyprinus carpio and Acanthopagrus arabicus) and kladophora as well as snails in the stations: Qurmat Ali; Al sadir Teaching Hospital; Umm Qasr Port and and Arabian Gulf 1 in 2016. The present study aims to detect the impact of both Chernobyl reactor explosion, Fokushima reactor destruction and the oil industries in the study region environments. The results of the soil and sediment analysis showed that there is an impact of Chernobyl accident. There are observed concentrations for the 137Cs; in addition to the effect of the oil industries in the soil, sediments, and Acanthopagrus arabicus fish and Kladophora crusbate plant. This was proved by measuring the concentrations of Radium isotopes in the amounts above the allowable rates globally and locally. The results of the current study showed that the rates of Potassium 40 were the most prominent in fish samples and the Kladophora crusbate plant, which represents the predominant radiation activity and it is within the permitted natural range. The results of this study can be considered as a basis for monitoring of the future changes.http://dx.doi.org/10.31257/2018/JKP/100116

جرى تعيين التركيز النوعي للنظائر المشعة لكل من البوتاسيوم40K والسيزيوم 137Cs ولنظائر الراديوم 226Ra,228Ra) 224Ra (لعينات التراب والرسوبيات والاسماك (خشني, بياح, مزلك, مخيط, سمتي و شعم) وكذالك نبات الكلادوفورا اضافة الى القواقع في بيئات شط العرب وميناء ام قصر والمياه الساحلية العراقية في منطقة السد الخارجي – شمال غرب الخليج العربي في عام 2016. تهدف الدراسة الحالية الكشف عن تأثير كل من حادثة انفجار مفاعل تشرنوبل وحادثة انفجار مفاعل فوكوشيما في اليابان وكذالك الصناعات النفطية في بيئات منطقة الدراسة. اوضحت نتائج تحليل التراب والرسوبيات ان هناك وجود تأثير لحادثة تشرنوبل اي ان هناك تراكيز مرصودة لنظير السيزيوم 137 ، إضافة الى وجود تأثير للصناعات النفطية في كل من التراب والرسوبيات واسماك الشعم ونبات الكلادوفورا حيث تم اثبات ذالك من خلال رصد تراكيز لنظائر الراديوم بمقادير فوق النسب المسموح بها عالميا ومحليا. كما وان نتائج الدراسة الحالية أوضحت ان نسب البوتاسيوم40 كانت الابرز في عينات الاسماك ونبات الكلادوفورا والذي يمثل النشاط الاشعاعي الغالب وهو ضمن النسب الطبيعية المسموح بها . وبالإمكان اعتبار نتائج هذه الدراسة كأساس لمراقبة التغيرات المستقبلية

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