نتایج جستجو برای: high natural background radiation areas hnbras

تعداد نتایج: 3505119  

ژورنال: سلامت و محیط زیست 2009
اسلامی, اکبر, سقطچی, فرانک, صلوتی, مجتبی,

Backgrounds and Objectives: Due to importance of ionizing radiation on human health, many studies have been performed to measure the background gamma radiation all around the world as well as some cities in lran. According to this fact that everybody spends almost 80% of his time in indoor areas, this study was carried out to measure the amount of background gamma radiation in indoor areas in Z...

Introduction Radioactive materials naturally exist in the world. Indeed, approximately 82% of human-absorbed radiation doses, which are out of human control, arise from natural sources of radiation including cosmic, terrestrial, and exposure through inhalation or ingestion. Thus, the aim of the present study was to estimate health risk, as well as the effective and organ doses from naturally oc...

Journal: :iranian journal of radiation research 0
a.t. al-kinani supreme council for environment and natural reserves, doha, qatar, a.s. al-saidi s. al-anni

abstract   background : the application of du emanation for first time contaminated certain areas in the south west region of iraq after the second gulf war (1991). these contaminated areas were discovered in 1994. radioactive contamination was detected using the nuclear enterprise pcm5/1 in soil samples collected from two regions near by grazing lands. this study was done for assessment of du ...

A.S. Al-Saidi, A.T. Al-Kinani, S. Al-Anni,

  ABSTRACT   Background : The application of DU emanation for first time contaminated certain areas in the south west region of Iraq after the second Gulf war (1991). These contaminated areas were discovered in 1994. Radioactive contamination was detected using the nuclear enterprise PCM5/1 in soil samples collected from two regions near by grazing lands. This study was done for assessment of D...

K.L. Sriharsha, M. Raghavayya, M.S. Chandrahekara, N.R. Rajendra Prasad,

Background: Humans beings are continuously exposed to ionizing radiation from natural sources. The main contributors to natural radiation are high-energy cosmic radiation and radioactive nuclides that originates in the earth’s crust. Exposure to high levels of radiation can cause serious health effects. In this study an attempt has been made to monitor the levels of environmental back...

2009
Birajalaxmi Das Divyalakshmi Saini M. Seshadri

BACKGROUND Telomere length is considered as a biomarker of aging, stress, cancer. It has been associated with many chronic diseases such as hypertension and diabetes. Although, telomere shortening due to ionizing radiation has been reported in vitro, no in vivo data is available on natural background radiation and its effect on telomere length. METHODOLOGY/PRINCIPAL FINDINGS The present inves...

اسلامی, اکبر, سقطچی, فرانک, صلوتی, مجتبی,

Background and Objective: Due to importance of ionizing radiation on human health, many studies have been performed to measure the background gamma radiation all around the world as well as some cities in lran. This study was carried out to measure the amount of background gamma radiation in outdoor areas in different seasons in Zanjan to determine the annual effective dose of the city resident...

ژورنال: سنجش و ایمنی پرتو 2020

The main objective of this paper is to use a computational intelligence algorithm for preparing a mapping map that categorizes different patterns of identification of infected areas and changes in radiation pollution. In this paper, the use of the fuzzy inference system has been proposed to determine the degree of radiation contamination in the regions. The study uses ultra-high resolution spec...

Journal: :Radiation protection dosimetry 2012
E P Christa P J Jojo V K Vaidyan S Anilkumar K P Eappen

A systematic radiological survey has been carried out in the region of high-background radiation area in Kollam district of Kerala to define the natural gamma-radiation levels. One hundred and forty seven soil samples from high-background radiation areas and five samples from normal background region were collected as per standard sampling procedures and were analysed for (238)U, (232)Th and (4...

Journal: :iranian journal of medical physics 0
mojtaba ghorbanipour department of environmental engineering, ahvaz branch, islamic azad university, ahvaz, iran azamalsadat hosseini alhashemi department of environmental sciences, ahvaz branch, islamic azad university, ahvaz, iran somayeh gharloghi department of medical physics, lorestan university of medical sciences, khorramabad, iran mahin adeli department of public health, lorestan university of medical sciences, khorramabad, iran mehrdad gholami department of medical physics, lorestan university of medical sciences, khorramabad, iran

introduction radioactive materials naturally exist in the world. indeed, approximately 82% of human-absorbed radiation doses, which are out of human control, arise from natural sources of radiation including cosmic, terrestrial, and exposure through inhalation or ingestion. thus, the aim of the present study was to estimate health risk, as well as the effective and organ doses from naturally oc...

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