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Behavior Of Radon Thoron And Their Progeny In A Room
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Book Synopsis Behavior of Radon, Thoron and Their Progeny in a Room by : Stevanovic Nenad
Download or read book Behavior of Radon, Thoron and Their Progeny in a Room written by Stevanovic Nenad and published by LAP Lambert Academic Publishing. This book was released on 2015-02-02 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inhalation of the short-lived radon and thoron decay products in homes, at work places and in the outdoor atmosphere, yield the greatest amount of the natural radiation exposure of man. Radon is known to present a risk of lung cancer when it, or rather its decay products are inhaled. For this reason, it is of great importance to determine concentrations of radon, thoron and their progeny in a room. For that purpose extended Jacobi's room model for three modal distribution of attached radon progeny is introduced. The parameters of Jacobi room model were determined by modeling radon and thoron progeny as Brownian particles, where indoor airflow is neglected. In case of turbulent indoor airflow, deposition velocities of unattached and attached radon progeny were presented as functions of friction velocity. Influence of aerosol characteristics on deposition rate of attached radon progeny and attachment rate in turbulent airflow was investigated in this monograph. It was shown that there is correlation between deposition rates and ventilation rate.
Book Synopsis Variations in the Amino Acid Content of Lactobacillus Lactis Protoplasts by :
Download or read book Variations in the Amino Acid Content of Lactobacillus Lactis Protoplasts written by and published by . This book was released on 1990 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Radon, Thoron, and Their Progeny Near the Earth's Surface by : Stephen D. Schery
Download or read book Investigation of Radon, Thoron, and Their Progeny Near the Earth's Surface written by Stephen D. Schery and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Research of the National Institute of Standards and Technology by :
Download or read book Journal of Research of the National Institute of Standards and Technology written by and published by . This book was released on 1990 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports NIST research and development in the physical and engineering sciences in which the Institute is active. These include physics, chemistry, engineering, mathematics, and computer sciences. Emphasis on measurement methodology and the basic technology underlying standardization.
Book Synopsis Radon And Thoron In The Human Environment - Proceedings Of The 7th Tohwa Univ International Symposium by : Akira Katase
Download or read book Radon And Thoron In The Human Environment - Proceedings Of The 7th Tohwa Univ International Symposium written by Akira Katase and published by World Scientific. This book was released on 1998-09-29 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Critical Assessment of Radon Progeny Exposure While Showering in Radon-bearing Water by : Philip K. Hopke
Download or read book Critical Assessment of Radon Progeny Exposure While Showering in Radon-bearing Water written by Philip K. Hopke and published by . This book was released on 1996 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radioactive Air Sampling Methods by : Mark L. Maiello
Download or read book Radioactive Air Sampling Methods written by Mark L. Maiello and published by CRC Press. This book was released on 2010-10-18 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the field of radioactive air sampling has matured and evolved over decades, it has lacked a single resource that assimilates technical and background information on its many facets. Edited by experts and with contributions from top practitioners and researchers, Radioactive Air Sampling Methods provides authoritative guidanc
Book Synopsis Long-term Measurements of Indoor Radon and Its Progeny in the Presence of Thoron Using Nuclear Track Detectors by : Khalil Amgarou
Download or read book Long-term Measurements of Indoor Radon and Its Progeny in the Presence of Thoron Using Nuclear Track Detectors written by Khalil Amgarou and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Naturally Occurring Radioactive Materials in Construction by : Wouter Schroeyers
Download or read book Naturally Occurring Radioactive Materials in Construction written by Wouter Schroeyers and published by Woodhead Publishing. This book was released on 2017-05-23 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Naturally Occurring Radioactive Materials in Construction (COST Action NORM4Building) discusses the depletion of energy resources and raw materials and its huge impact not only on the building market, but also in the development of new synthetic building materials, whereby the reuse of various (waste) residue streams becomes a necessity. It is based on the outcome of COST Action TU 1301, where scientists, regulators, and representatives from industry have come together to present new findings, sharing knowledge, experiences, and technologies to stimulate research on the reuse of residues containing enhanced concentrates of natural radionuclides (NORM) in tailor-made building materials. Chapters address legislative issues, measurement, and assessment of building materials, physical and chemical aspects, from raw materials, to residues with enhanced concentrations of natural radionuclides (NORM), processes, building products containing NORM, and end-of-life and reuse requirements. Presents a holistic approach in developing new reuse pathways involving experts on different (technical, chemical, physical, ecological, economical and radiological) aspects of materials Provides practical guidance that address questions and comments regarding the EU-BSS standards linked to the processing of NORM in building materials Investigates realistic legislative scenarios Primarily aimed at industry and actors linked to the industry, but also researchers Contains a strong international network of expert authors and internal reviewers for each chapter
Book Synopsis WHO Handbook on Indoor Radon by : World Health Organization
Download or read book WHO Handbook on Indoor Radon written by World Health Organization and published by World Health Organization. This book was released on 2009 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook focuses on residential radon exposure from a public health point of view and provides detailed recommendations on reducing health risks from radon and sound policy options for preventing and mitigating radon exposure. The material in the handbook reflects the epidemiological evidence that indoor radon exposure is responsible for a substantial number of lung cancers in the general population. Information is provided on the selection of devices to measure radon levels and on procedures for the reliable measurement of these levels. Discussed also are control options for radon in new dwellings, radon reduction in existing dwellings as well as assessment of the costs and benefits of different radon prevention and remedial actions. Also covered are radon risk communication strategies and organization of national radon programs.--Publisher's description.
Book Synopsis Radon and Its Decay Products in Indoor Air by : William W. Nazaroff
Download or read book Radon and Its Decay Products in Indoor Air written by William W. Nazaroff and published by Wiley-Interscience. This book was released on 1988-02-08 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the perception of indoor radon as a relatively minor health issue has been radically altered: observations in Sweden, Canada, and the U.S. have revealed the high incidence of elevated radon levels in ordinary houses and the extreme hazard of inhaling radon decay products. These findings have lead to a wide range of activities and intensive research aimed at limiting human exposure to radon. This is one of the few books to provide a comprehensive, insightful analysis of the radon problem. Papers reflecting the most current research critically review all major aspects of this issue, each providing sufficient detail to be accessible to those who are technically trained but lack prior direct experience. Coverage includes the generation and migration of radon in source material, the physical and chemical behavior of radon, current evidence on the health effects and risk of exposure, and the strategic and tactical aspects of controlling exposures.
Download or read book Radioactivity & Radiochemistry written by and published by . This book was released on 1991 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radionuclides in the Environment by : David A. Atwood
Download or read book Radionuclides in the Environment written by David A. Atwood and published by John Wiley & Sons. This book was released on 2013-02-19 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear energy is the one energy source that could meet the world's growing energy needs and provide a smooth transition from fossil fuels to renewable energy in the coming decades and centuries. It is becoming abundantly clear that an increase in nuclear energy capacity will, and probably must, take place. However, nuclear energy and the use of radionuclides for civilian and military purposes lead to extremely long-lived waste that is costly and highly problematic to deal with. Therefore, it is critically important ot understand the environmental implications of radionuclides for ecosystems and human health if nuclear energy is to be used to avoid the impending global energy crisis. The present volume of the EIC Books series addresses this critical need by providing fundamental information on environmentally significant radionuclides. The content of this book was developed in collaboration with many of the authors of the chapters. Given the enormity of the subject the Editor and the Authors had to be judicious in selecting the chapters that would appropriately encompass and describe the primary topics, particularly those that are of importance to the health of ecosystems and humans. The resulting chapters were chosen to provide this information in a book of useful and appropriate length. Each chapter provides fundamental information on the chemistry of the radionuclides, their occurrence and movement in the enivornment, separation and analyses, and the technologies needed for their remediation and mitigation. The chapters are structured with a common, systematic format in order to facilitate comparions between elements and groups of elements. About EIC Books The Encyclopedia of Inorganic Chemistry (EIC) has proved to be one of the defining standards in inorganic chemistry, and most chemistry libraries around the world have access either to the first of second print editon, or to the online version. Many readers, however, prefer to have more concise thematic volumes, targeted to their specific area of interest. This feedback from EIC readers has encouraged the Editors to plan a series of EIC Books, focusing on topics of current interest. They will appear on a regular basis, and will feature leading scholars in their fields. Like the Encyclopedia, EIC Books aims to provide both the starting research student and the confirmed research worker with a critical distillation of the leading concepts in inorganic and bioinorganic chemistry, and provide a structured entry into the fields covered. This volume is also available as part of Encyclopedia of Inorganic Chemistry, 5 Volume Set. This set combines all volumes published as EIC Books from 2007 to 2010, representing areas of key developments in the field of inorganic chemistry published in the Encyclopedia of Inorganic Chemistry. Find out more.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Natural Radiation Environment VII by : J.P. McLaughlin
Download or read book The Natural Radiation Environment VII written by J.P. McLaughlin and published by Elsevier. This book was released on 2005-03-30 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Natural Radiation Environment Symposium (NRE VII), the Seventh in the NRE series, which commenced forty years ago in 1963 at Rice University Texas, was held in Rhodes (Greece) in May 2002. During the intervening four decades the research work presented at these NRE Symposia has contributed to a deeper understanding of natural radiation and in particular of its contribution to human radiation exposures.It is clear from the quality and diversity of the 143 papers in this volume of Radioactivity in the Environment series that the study of the natural radiation environment is an active and continually expanding field of research. The papers in this volume fall into a number of main and topical research areas namely: the measurement and behaviour of natural radionuclides in the environment cosmic radiation measurement and dosimetry the external penetrating radiation field at ground level TENR (Technologically Enhanced Natural Radiation) and NORM (Naturally Occurring Radioactive Materials) studies assessment of the health effects of radon regulatory aspects of natural radiation exposures In these papers the results of many new surveys of natural radionuclide levels in the environment and of improved methods of detection are described. While some of the natural radiation sources investigated are unmodified by human activity, many accounts are given here of exposures to natural sources which have been enhanced by technology. Such TENR and NORM exposures are shown to range from activities such as mining, oil and gas exploitation, the use of industrial by-products as building materials, to space travel to name but a few. In several cases quite high doses to some individuals are shown to occur. Accounts are given here of methods to prevent and reduce exposures to such sources.
Book Synopsis Study of the Atmospheric Chemistry of Radon Progeny in Laboratory and Real Indoor Atmospheres. Final Project Report by :
Download or read book Study of the Atmospheric Chemistry of Radon Progeny in Laboratory and Real Indoor Atmospheres. Final Project Report written by and published by . This book was released on 1996 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report completes Clarkson University's study of the chemical and physical behavior of the 218Po atom immediately following its formation by the alpha decay of radon. Because small changes in size for activity in the sub-10 nm size range result in large changes in the delivered dose per unit exposure, this behavior must be understood if the exposure to radon progeny and it dose to the cells in the respiratory tract are to be fully assessed. In order to pursue this general goal, two areas of radon progeny behavior are being pursued; laboratory studies under controlled conditions to better understand the fundamental physical and chemical processes that affect the progeny's atmospheric behavior and studies in actual indoor environments to develop a better assessment of the exposure of the occupants of that space to the size and concentration of the indoor radioactive aerosol. Thus, two sets of specific goals have been established for this project. The specific tasks of the controlled laboratory studies are (1) Determine the formation rates of {circ}OH radicals formed by the radiolysis of air following radon decay; (2) Examine the formation of particles by the radiolytic oxidation of substances like SO2, ethylene, and H2S to lower vapor pressure compounds and determine the role of gas phase additives such as H2O and NH3 in determining the particle size; (3) Measure the rate of ion-induced nucleation using a thermal diffusion cloud chamber, and (4) Measure the neutralization rate of 218PoO(subscript x) in O2 at low radon concentrations.
Book Synopsis Study of the Atmospheric Chemistry of Radon Progeny in Laboratory and Real Indoor Atmospheres by :
Download or read book Study of the Atmospheric Chemistry of Radon Progeny in Laboratory and Real Indoor Atmospheres written by and published by . This book was released on 1992 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report covers the second year of the 28 month grant current grant to Clarkson University to study the chemical and physical behavior of the polonium 218 atom immediately following its formation by the alpha decay of radon. Because small changes in size for activity result in large changes in the delivered dose per unit exposure, this behavior must be understood if the exposure to radon progeny and it dose to the cells in the respiratory tract are to be fully assessed. Two areas of radon progeny behavior are being pursued; laboratory studies under controlled conditions to better understand the fundamental physical and chemical process that affect the progeny's atmospheric behavior and studies in actual indoor environments to develop a better assessment of the exposure of the occupants of that space to the size and concentration of the indoor radioactive aerosol. This report describes the progress toward achieving these objectives.
