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Dissertations / Theses on the topic 'Indoor radon'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Jabarivasal, Naghi. "Indoor atmospheric radon in Hamadan, Iran : atmospheric radon indoors and around Hamadan city in Iran." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/5452.

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Radon gas may be a major air quality hazard issue inside the home. Radon (222Rn) comes from the natural breakdown of radioactive uranium (238U) via radium (226Ra) in soil, rocks, and water. Radon and its progeny contribute more than 50% of the total radiation dose to the human population due to inhalation; it can result in severe and fatal lung disease. This investigation has determined the radon concentrations in seventy-seven domestic houses in a mountainous area of Hamadan in Iran which were monitored using track-etch detectors of type CR-39 exposed for three month periods. The arithmetic m

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2

Ho, Chi-wai. "Radiation dose due to indoor radon and its progeny in Hong Kong and a study of mitigation methods to control indoor radon exposure /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19736782.

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3

Byrne, Patricia Hiromi. "Development of an advisory system for indoor radon mitigation." PDXScholar, 1991. https://pdxscholar.library.pdx.edu/open_access_etds/4263.

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A prototype hybrid knowledge-based advisory system for indoor radon mitigation has been developed to assist Pacific Northwest mitigators in the selection and design of mitigation systems for existing homes. The advisory system employs a heuristic inferencing strategy to determine which mitigation techniques are applicable, and applies procedural methods to perform the fan selection and cost estimation for particular techniques. The rule base has been developed employing knowledge in existing publications on radon mitigation. Additional knowledge has been provided by field experts. The benefits

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4

Hazin, Clovis Abrahao. "Release of radon from showers and its influence on the balance of radon indoors." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/16638.

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5

Ho, Chi-wai, and 何志偉. "Radiation dose due to indoor radon and its progeny in Hong Kong and a study of mitigation methods to control indoor radon exposure." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31236972.

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6

Quirino, Torres Leopoldo Leonardo. "Radon adsorption on activated charcoal in the presence of indoor pollutants /." free to MU campus, to others for purchase, 1998. http://wwwlib.umi.com/cr/mo/fullcit?p9901272.

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7

Sajja, Mounika. "Correlation between Indoor Radon Concentrations and Hydraulic Fracturing in Ohio." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1494633736877779.

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8

Siaway, George N. F. "Evaluation of the relationship between indoor radon and geology, topography and aeroradioactivity." Fairfax, VA : George Mason University, 2009. http://hdl.handle.net/1920/4534.

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Thesis (Ph.D.)--George Mason University, 2009.<br>Vita: p. 267. Thesis director: Douglas Mose. Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Environmental Science and Public Policy. Title from PDF t.p. (viewed June 10, 2009). Includes bibliographical references (p. 259-266). Also issued in print.

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9

Norris, Mary Jo. "A Study of Radon in Air and Water in Maine Schools." Fogler Library, University of Maine, 2002. http://www.library.umaine.edu/theses/pdf/NorrisMJ2002.pdf.

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10

Willenius, Ann-Christin. "Radon i flerbostadshus : Kartläggning av fastighetsförvaltarnas egenkontroll avseende radon." Thesis, Mälardalen University, School of Sustainable Development of Society and Technology, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-9955.

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<p>Radon is a hazardous substance that cannot be perceived by our senses. It has long been known that exposure to high radon levels for a long period of time will ultimately cause lung cancer. The Swedish Radiation Safety Authority estimates that 500 people die annually due to this. Although most of them are smokers, even non-smokers suffer from lung cancer caused by radon. The statutory value for radon in homes today is 200 Bq/m³. Several years of research points to the fact that 63% of all those who develop lung cancer have been exposed to radon levels between 100-200 Bq/m³. This is why the

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11

Pegoretti, Stefano. "La distribuzione del gas radon indoor: analisi con moderne tecniche statistiche." Doctoral thesis, Università degli studi di Trento, 2008. https://hdl.handle.net/11572/368654.

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In un contesto generale i cui contorni risultano ancora non ben deï¬ niti e i cui principali problemi non hanno ancora trovato soluzioni certe o ricette â€œstandardâ€ , il lavoro descritto in questa tesi vuole presentarsi come il tentativo di testare ed esplorare approcci diï¬€erenti e diversiï¬ cati â€” sia in relazione allo scopo dellâ€™analisi, sia in relazione alle fondamenta teoriche cui fanno riferimento â€” per aï¬€rontare il fenomeno e il problema radon indoor: lâ€™intenzione Ã¨ stata quella di ricercare punti di vista alternativi e complementari dai quali poter osservare un problema

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12

Pegoretti, Stefano. "La distribuzione del gas radon indoor: analisi con moderne tecniche statistiche." Doctoral thesis, University of Trento, 2008. http://eprints-phd.biblio.unitn.it/72/1/tesi_link.pdf.

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In un contesto generale i cui contorni risultano ancora non ben deﬁniti e i cui principali problemi non hanno ancora trovato soluzioni certe o ricette “standard”, il lavoro descritto in questa tesi vuole presentarsi come il tentativo di testare ed esplorare approcci diﬀerenti e diversiﬁcati — sia in relazione allo scopo dell’analisi, sia in relazione alle fondamenta teoriche cui fanno riferimento — per aﬀrontare il fenomeno e il problema radon indoor: l’intenzione è stata quella di ricercare punti di vista alternativi e complementari dai quali poter osservare un problema comune secondo prosp

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13

Akbari, Keramatollah. "Impact of Radon Ventilation on Indoor Air Quality and Building Energy saving." Licentiate thesis, Mälardalen University, School of Sustainable Development of Society and Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-7286.

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<p>Industrial living is caused much people do live and work in closed and confined places; offices and residential buildings. This is why in this new world more fresh air which is generally provided by forced ventilation plays a vital role in living of human being. Furthermore because of many different indoor pollutants, like radon and artificial pollutants, the amount of fresh air and in turn the energy consumption has increased. This energy consumption related to ventilation has reached up to about 30 percent of energy used of building section. So making interaction between indoor air qualit

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14

Akbari, Keramatollah. "Simulation of Indoor Radon and Energy Recovery Ventilation Systems in Residential Buildings." Doctoral thesis, Mälardalens högskola, Framtidens energi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-29274.

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This study aims to investigate the effects of ventilation rate, indoor air temperature, humidity and using a heat recovery ventilation system on indoor radon concentration and distribution. Methods employed include energy dynamic and computational fluid dynamics simulation, experimental measurement and analytical investigations. Experimental investigations primarily utilize a continuous radon meter and a detached house equipped with a recovery heat exchanger unit. The results of the dynamic simulation show that the heat recovery unit is cost-effective for the cold Swedish climate and an energy

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15

Hanson, Brian Robert. "An examination of two case studies of indoor residential Radon related to Radon policy at the state and local levels." Kansas State University, 2003. http://hdl.handle.net/2097/35988.

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16

Sarmah, Dipsikha. "Evaluation of Spatial Interpolation Techniques Built in the Geostatistical Analyst Using Indoor Radon Data for Ohio,USA." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1350048688.

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17

Yerrabolu, Pavan. "Correction model based ANN modeling approach for the estimation of Radon concentrations in Ohio." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1341604941.

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18

Amgarou, Khalil. "Long-Term Measurements of Indoor Radon and its Progeny in the Presence of Thoron Using Nuclear Track Detectors. A Novel Approach." Doctoral thesis, Universitat Autònoma de Barcelona, 2002. http://hdl.handle.net/10803/3339.

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En este trabajo, hemos establecido una nueva aproximación para determinar el factor de equilibrio de los descendientes de 222Rn, durante periodos largos de tiempo y en presencia de 220Rn, utilizando un sistema pasivo, integrador y multicomponente de detectores de trazas nucleares. El método se basa en el hecho de que los periodos de semidesintegración del 222Rn y del 220Rn son diferentes, de que ambos isótopos tienen el mismo coeficiente de difusión en un medio dado, y de que la respuesta de los detectores de trazas nucleares depende de las condiciones del revelado electroquímico utilizadas. E

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19

Chiesa, Sharat. "Studio del microclima indoor e valutazione del rischio in un locale particolarmente sensibile della Biblioteca Classense." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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Il lavoro di tesi, presentato in questo elaborato, è parte integrante di un progetto di natura multidisciplinare, ed interdisciplinare, riguardante la Biblioteca Classense di Ravenna che ha coinvolto il personale della biblioteca, docenti, ricercatori e studenti della Scuola di Scienze e di Beni Culturali dell’Alma Mater Studiorum – Università di Bologna. L’obiettivo principe che ha motivato, giustificato e guidato la stesura di questo lavoro è stato il bisogno di ottenere informazioni, per effettuare la caratterizzazione microclimatica del caveau della Biblioteca Classense al fine di valut

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20

lida, Takao, Naureen Mahbub Rahman, Akihiro Matsui, Hiromi Yamazawa, and Jun Moriizumi. "The Measurement of Size Distribution of Indoor Natural Radioactive Aerosols by Imaging Plate Technique." American Institite of Physics, 2008. http://hdl.handle.net/2237/12043.

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21

Mancini, Simona. "Development of an adaptive hierarchical multi-scale approach for the assessment, planning and prevention of the impact on anthropic and natural environments due to the exceeding of radon gas concentrations above threshold values and the corresponding risk associated to indoor radon exposures." Doctoral thesis, Universita degli studi di Salerno, 2018. http://hdl.handle.net/10556/3006.

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2016 - 2017<br>With its publication, the Directive not only acknowledges the latest international research results but reopens the scientific panorama of the control and monitoring of Radon concentrations, which had a period of stasis succeeding the completed accomplishment of the previous European Directive 96/29/Euratom. In view of what will be the national accomplishments of the ED 59/2013/Euratom, scheduled within February 2018, in order to succeed next national strategies, the construction of an innovative approach based on an interdisciplinary methodology applicable on the European scal

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22

Sanders, Jana Farrell. "REPORT ON AN INTERNSHIP WITH THE FORT WAYNE-ALLEN COUNTY DEPARTMENT OF HEALTH, FORT WAYNE, INDIANA." Miami University / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=miami1081980904.

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23

Amaral, Paulo Giovany Quadros do. "Avaliação da alterabilidade e da exalação do gás radônio em rochas ornamentais." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/102/102131/tde-23012017-093147/.

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A presente tese se baseia no estudo das rochas ornamentais e de revestimento em relação aos seus aspectos de alterabilidade que irá influenciar diretamente no aumento da adição do gás radioativo radônio no interior de um ambiente com o passar do tempo de uso, fato devido as interações com o meio de onde é instalado a rocha, como exemplo da sua manutenção e limpeza, que implicará no seu padrão estético e na qualidade do ar do ambiente interior. Temas como a qualidade do ar interior relacionado a qualidade de vida do usuário, a radioatividade natural, o perigo do gás radiotivo radônio no interio

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24

Font, Guiteras Lluís. "Radon generation, entry and accumulation indoors." Doctoral thesis, Universitat Autònoma de Barcelona, 1997. http://hdl.handle.net/10803/3397.

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25

Diallo, Thierno Mamadou Oury. "Impact des polluants gazeux du sol sur la qualité de l'air intérieur des bâtiments." Thesis, La Rochelle, 2013. http://www.theses.fr/2013LAROS416/document.

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L’entrée des polluants gazeux du sol (Radon, COV,…) dans les environnements intérieurs peut occasionner des risques sanitaires significatifs. Or les modèles d’évaluation de risques sanitaires liés à ces polluants gazeux du sol contiennent beaucoup d’incertitudes qui peuvent conduire à une mauvaise appréciation des risques. Dans un premier temps, cette thèse contribue à l’amélioration des modèles d’évaluation des risques. Dans un second temps, elle propose le développement d’un modèle de dimensionnement des Systèmes de Dépressurisation du Sol (SDS) passifs utilisés pour protéger les bâtiments d

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26

Fang, Shu Hui, and 徐慧芳. "On the Study of Indoor and Underground Radon." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/27343325510427707481.

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27

CHEN, QING-JIANG, and 陳清江. "Indoor radon concentration assessment of houses in Taiwan." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/06179817150260061829.

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28

Branion-Calles, Michael C. "Modelling and Mapping Regional Indoor Radon Risk in British Columbia, Canada." Thesis, 2015. http://hdl.handle.net/1828/6393.

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Monitoring and mapping the presence and/or intensity of an environmental hazard through space, is an essential part of public health surveillance. Radon, a naturally occurring radioactive carcinogenic gas, is an environmental hazard that is both the greatest source of natural radiation exposure in human populations and the second leading cause of lung cancer worldwide. Concentrations of radon can accumulate in an indoor setting, and, though there is no safe concentration, various guideline values from different countries, organizations and regions provide differing threshold concentrations tha

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29

DI, CARLO CHRISTIAN. "Radon in indoor air and water: design and development of experimental apparatuses and measurement protocols." Doctoral thesis, 2021. http://hdl.handle.net/11573/1490586.

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Exposure to the decay products of radon (used in brief to refer to the isotope 222 of Rn) and thoron (used to refer to the isotope 220 of Rn) represents, on average, approximately half of the overall effective dose from natural sources suffered per year by the global population, i.e. 2.4 mSv per year. In particular, the UNSCEAR Report from 2008 reports effective doses due to radon and thoron inhalation of 1.15 mSv per year and 0.1 mSv per year, respectively. Due to the relatively low outdoor concentration, most of the exposure to radon occurs indoor where a wide variability exists in radon

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30

Sannappa, J. "Study of radon exhalation rate and concentrations of randon in indoor and outdoor atmospheres at Mysore." Thesis, 1999. http://hdl.handle.net/2009/2764.

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31

O'Brien, Kelsey Elizabeth. "RADON-222 POTENTIAL IN TILLS OF HALIFAX, NOVA SCOTIA." 2013. http://hdl.handle.net/10222/35468.

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The relative contributions of bedrock geology, radiometric uranium, till permeability and surficial geology were assessed as predictors of radon in indoor air in the Halifax Regional Municipality (HRM), NS, Canada. Bedrock geology and radiometric uranium were statistically significant predictors (14.4%) of indoor radon, based on available indoor radon data. Permeability was not among the predictors, which was surprising given its importance in past studies. In a follow up field analogue study done in laboratory columns, the permeability and diffusivity, as gas transport mechanisms, were found,

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32

Sathish, L. A. "Study of indoor radon/thoron and their progeny levels in dwellings of Mysore City." Thesis, 2002. http://hdl.handle.net/2009/3150.

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33

Taylor, Lange Sarah Clare. "Advancements in concrete material sustainability : supplementary cementitious material development and pollutant interaction." 2013. http://hdl.handle.net/2152/21212.

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Calcined clay and fly ash supplementary cementitious materials (SCMs) used in cement based materials were examined for their chemical and mechanical performance, as well as their pollutant interaction. This dissertation addresses three primary research questions, namely: (i) can zincite additions facilitate the use of calcined clay as SCMs by compensating for reductions in early-age mechanical performance or by compensating for their reduced pozzolanic reactivity, (ii) can cement renders, containing metakaolin calcined clays, be engineered for passive carbon dioxide and ozone removal, and (iii

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