نتایج جستجو برای: Radon

تعداد نتایج: 6960  

ژورنال: سنجش و ایمنی پرتو 2016

Radon concentration was measured in ground floor of two buildings with moisture controlled sub slab construction and slab on the ground. Results show that radon concentration in ground floor of the building with moisture controlled sub construction is more than 11 times smaller than that of the building with slab on the ground. Also indoor radon concentration in this building is about %41 highe...

B. Xhafa, G. Hodolli, K. Dollani, S. Kadiri, Sadik Bekteshi,

Background: In this study are submitted the radon concentration measurement results of four underground mines: Stanterg, Artana, Hajvali and Badovc, which are owned by Trepça Enterprise, Kosovo. The mines have the same geological formation and from these mines are extracted ores rich with lead, zinc, silver, and gold. The radiation exposures caused by radon and radon daughters was determ...

ژورنال: سنجش و ایمنی پرتو 2013

  Based on the last presented reports of UNSCEAR, inhalation of radon gas and its short-lived decay products is a major contributor to the human exposure from natural radioactivity. Lung cancer is the known effect on human health from exposure to radon in air. Radon is found in outdoor air of buildings of all kinds. The main important isotope of radon is 222Rn. Radon (222Rn) is a noble gas...

Journal: :iranian journal of radiation research 0
k. kant aggarwal college, ballabgarh, faridabad, 121 004; formerly at department of physics, kl mehta dn college for women, faridabad, haryana, 121 001, india rashmi department of physics, gfitm, ballabgarh, faridabad, haryana, india r.g. sonkawade inter university accelerator centre, new delhi, 110 067, india g.s. sharma department of physics, g.l.a. institute of technology and management, mathura (u.p) 281 001, india r.p. chauhan department of applied physics, nit, kurukshetra, 136 119, india s.k. chakarvarti department of applied physics, nit, kurukshetra, 136 119, india

background: radon and thoron are invisible, odorless, heavy and radioactive gases which are ubiquitously present in dwellings and in the environment. in the present work, seasonal variation of indoor radon, thoron and their progeny concentrations has been studied in the dwellings of industrially polluted cities in district faridabad, haryana and district mathura in uttar pradesh. materials and ...

Journal: :iranian journal of radiation research 0
k. kant department of physics, kl mehta dayanand college for women, faridabad, haryana, india-121 001 s.b. upadhyay department of physics, b.s.a. college, mathura ,u.p. – 281 001 s.k. chakarvarti department of applied physics, n.i.t. kurukshetra, haryana, india-136 119

abstract background: and soils with which it comes in contact. there is dual exposure from radon in water i.e. due toinhalation of the radon released from the water into the ambient air and through ingestion whenwater is used for drinking. as radon contaminated water adversely affects the health, it istherefore fundamental from health and hygiene point of view to measure radium concentrationand...

Journal: :iranian journal of radiation research 0
m. shakir khan department of applied physics, zh college of engineering and technology, aligarh muslim university, aligarh-202002, u t ta r pr ade sh, india a.h. naqvi department of applied physics, zh college of engineering and technology, aligarh muslim university, aligarh-202002, u t ta r pr ade sh, india a. azam department of applied physics, zh college of engineering and technology, aligarh muslim university, aligarh-202002, u t ta r pr ade sh, india d.s. srivastava department of physics, mangalaytan university, aligarh-202002, uttar pradesh, india

background: everyone is exposed to radon because it is present everywhere with varying concentrations. radon and its progeny are well established as lung carcinogenic. materials and methods: track etch technique using lr-115 plastic track detectors has been used to measure the effective radium content and radon exhalation rates in soil samples collected from urban area of etah district of uttar...

Journal: :iranian journal of radiation research 0
a. binesh physics department, payam nour university of fariman, fariman, iran a.a. mowlavi physics department, sabzevar tarbiat moallem university, sabzevar, iran s. mohammadi physics department, payam nour university of mashhad, mashhad, iran

background: radon concentration was measured in 50 drinking water samples in mashhad - iran. b the tap water used for drinking and other household usages can increase the indoor radon level. drinking water samples were collected from various places and supplies of public water used in mashhad. then radon concentration has been measured by portable radon gas surveyor silena (prassi) system. resu...

Journal: :iranian journal of medical physics 0

introduction cr-39 detectors are widely used for radon and progeny measurement in the air. in this paper, using the monte carlo simulation, the possibility of using the cr-39 for direct measurement of radon and progeny in water is investigated. materials and methods assuming the random position and angle of alpha particle emitted by radon and progeny, alpha energy and angular spectrum that arri...

Journal: :journal of biomedical physics and engineering 0
m. haghani department of medical physics and medical engineering, school of medicine, shiraz university of medical sciences, shiraz, iran s. m. j. mortazavi the center for radiological research, shiraz university of medical sciences, shiraz, iran r. faghihi radiation research center, mechanical engineering school, shiraz university, shiraz, iran s. mehdizadeh radiation research center, mechanical engineering school, shiraz university, shiraz, iran j. moradgholi ph.d student of nanomaterials, department of materials engineering, isfahan university of technology, isfahan 84156-83111, iran l. darvish master student, student research committee, school of medicine, shiraz university of medical sciences, shiraz, iran

background: nowadays, extensive technological advancements have made it possible to use nanopaints which show exciting properties. in ir iran excessive radon levels (up to 3700 bq m–3) have been reported in homes located in radon prone areas. over the past decades, concerns have been raised about the risk posed by resi- dential radon exposure. objective: this study aims at investigating the eff...

2013
Antonio Neri Sherri L. Stewart William Angell

INTRODUCTION Radon is the second leading cause of lung cancer among smokers and the leading cause among nonsmokers. The US Environmental Protection Agency recommends that every home be tested for radon. Comprehensive Cancer Control (CCC) programs develop cancer coalitions that coordinate funding and resources to focus on cancer activities that are recorded in cancer plans. Radon tests, remediat...

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