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Journal articles on the topic 'Indoor radon'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Streckytė, Erika, and Donatas Butkus. "THE RESULTS OF MEASURING AND MODELLING SOIL-INDOORS RADON TRANSPORTATION / RADONO PERNAŠOS IŠ DIRVOŽEMIO Į PATALPAS MATAVIMO IR MODELIAVIMO REZULTATAI." Mokslas - Lietuvos ateitis 5, no. 4 (2013): 388–96. http://dx.doi.org/10.3846/mla.2013.62.

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The article presents the entry of radon gas into premises and introduces the parameters accelerating and slowing this process. The paper determines the dependence of radon gas entering the premises on ambient temperature and humidity changes. It is noted that a growth in differences under ambient and indoor temperature increases indoor radon concentrations in the air due to an increase in the intensity of radon exhalation from soil. Also, an increase in the moisture content indoors decreases the volumetric activity of radon in the air. The simulated values of radon volumetric activity in ambie

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Haker Høegh, Britt, and Torben Valdbjørn Rasmussen. "Efficiency of the chimney effect controlling radon levels indoor." MATEC Web of Conferences 282 (2019): 02029. http://dx.doi.org/10.1051/matecconf/201928202029.

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According to the WHO the radioactive gas radon must be controlled indoors. E.g. by naturally driven suction systems based on thermal buoyancy, also denoted the chimney effect, which exploits the difference of indoor- and outdoor temperature to lower radon levels indoor. This paper presents four case studies showing that the efficiency of such systems to control radon level indoors varies, as the outdoor temperature varies throughout the year. The chimney effect was the driving force in the four single-family houses used as case studies. In two cases it was used to increase the indoor air chang

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Müllerová, Monika, Karol Holý, Patrícia Kureková, and Iveta Smetanová. "RADON MONITORING IN SELECTED KINDERGARTENS IN SLOVAKIA." Radiation Protection Dosimetry 198, no. 9-11 (2022): 766–70. http://dx.doi.org/10.1093/rpd/ncac141.

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Abstract In 17 kindergartens in Slovakia indoor radon survey was performed over a period of 1 y. In selected kindergartens also continuous monitoring of indoor radon activity concentration was conducted for ~2 weeks, as well as soil radon measurements. Annual average of indoor radon concentration, measured using track detectors, ranged between 75 and 1810 Bq m−3. Soil radon concentration ranged from 13 to 320 kBq m−3. The relationship between activity concentrations measured in soil air and indoors has a linear character.

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Rasmussen, Torben Valdbjørn, and Thomas Cornelius. "Model to Balance an Acceptable Radon Level Indoors." Buildings 12, no. 4 (2022): 447. http://dx.doi.org/10.3390/buildings12040447.

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A theoretical model is presented for balancing an acceptable radon concentration in indoor air. The infiltration of radon from the ground to the indoor air can be controlled by barriers or by lowering the air pressure at the lower zone of the ground slab. Indoor air with a radon concentration higher than that of outdoor air can further be controlled through the effective dilution of indoor air with outdoor air. The theory estimates the allowed radon infiltration from the ground to balance radon at an acceptable level indoors for a given ventilation rate, considering the radon contribution to t

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Butkus, Donatas, Gendrutis Morkūnas, and Laima Pilkyte. "IONIZING RADIATION IN BUILDINGS: SITUATION AND DEALING WITH PROBLEMS." JOURNAL OF ENVIRONMENTAL ENGINEERING AND LANDSCAPE MANAGEMENT 13, no. 2 (2005): 103–7. http://dx.doi.org/10.3846/16486897.2005.9636853.

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Among many artificial and natural sources of exposure the exposure which is received indoors is very important both from the point of view of its magnitude and necessity of optimization. Such sources as indoor radon and natural radionuclides in construction materials are the most significant ones. The survey results of national indoor radon show that its concentrations might be rather high in some regions. Construction materials can be a significant source of indoor radon, however, in Lithuania external exposure due to radionuclides in these materials is much more important. Very often natural

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Shapiro, P. S., and T. J. Sorg. "Reduction of Radon from Household Water Supplies." Radiation Protection Dosimetry 24, no. 1-4 (1988): 523–25. http://dx.doi.org/10.1093/oxfordjournals.rpd.a080337.

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Abstract Groundwater can be a major source of indoor radon in homes that use individual wells or are served by very small community water systems. In the United States, several wells have been found to contain more than 37,000,000 Bq.m-3 of radon dissolved in the water. This radon can be released in the indoor air in the course of using water for normal household activities. A measurement of the radon in the drinking water can be made when an indor radon problem is suspected. While ventilation may reduce indoor radon levels that result from household water usage, the most common control techni

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Ye, Lin. "Analysis of Factors Affecting Indoor Radon Concentration in Zhuji City." Scientific Journal of Technology 7, no. 3 (2025): 237–42. https://doi.org/10.54691/4pfp8a54.

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At present, indoor radon pollution has become the focus of global environmental science and public health research. This study measured the indoor radon and soil radon concentrations in Zhuji City and analyzed the various factors affecting indoor radon concentrations. The research results show that the indoor radon concentration in Zhuji City is significantly lower than the national safety standard limit. The indoor radon concentration is affected by factors such as building age, floor height, seasonal changes and ventilation conditions. In addition, the study also found that there is a certai

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Chen, Jing. "RISK ASSESSMENT FOR RADON EXPOSURE IN VARIOUS INDOOR ENVIRONMENTS." Radiation Protection Dosimetry 185, no. 2 (2019): 143–50. http://dx.doi.org/10.1093/rpd/ncy284.

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Abstract Using data from a number of radon surveys, it was assessed that on average, radon progeny concentrations in Canadian homes are about three times higher than in school buildings, 4.7 times higher than in public buildings and indoor workplaces, and 12 times higher than in outdoor air. Canadian statistics show that most Canadians spend ~70% of their time indoors at home, 20% indoors away from home and 10% in outdoors. Due to relatively higher radon concentration in residential homes and longer time spent indoors at home, the exposure at home contributes to 90% of the radon-induced lung-c

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Yin, Yanmei. "Analysis of Indoor Radon Concentration Levels and Influencing Factors in Kunshan." Scientific Journal of Technology 5, no. 12 (2023): 43–48. http://dx.doi.org/10.54691/q1kf5b47.

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Radon is a natural radioactive gas widely existing, in order to study the indoor radon level and influencing factors in Kunshan City, the indoor radon concentration of three buildings was analyzed. It was found that all of them met the indoor radon concentration limit specified in the national standard, and the indoor radon concentration was mainly related to soil radon concentration, indoor ventilation and climate. Indoor radon can be controlled from the following points: (1) While building a new building, test the radon concentration in the soil and try to avoid areas with high concentration

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Tsapalov, Andrey, Konstantin Kovler, Sergey Kiselev, Ilia Yarmoshenko, Robert Bobkier, and Petr Miklyaev. "IAEA Safety Guides vs. Actual Challenges for Design and Conduct of Indoor Radon Surveys." Atmosphere 16, no. 3 (2025): 253. https://doi.org/10.3390/atmos16030253.

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An analysis of the international radon regulatory framework identified actual challenges for the design and conduct of indoor radon surveys, though there is little discussion on this issue in the radon community. The main challenges hindering the development of radon regulation on an international scale, particularly in indoor radon surveys include the following: (i) responsibility for indoor radon testing and mitigation, (ii) excessive focus on Radon Priority Areas, (iii) the role of temporal uncertainty in indoor radon testing, (iv) the standardization of indoor radon measurements, and (v) t

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McCarron, Barry, Xianhai Meng, and Shane Colclough. "A pilot study of radon levels in certified passive house buildings." Building Services Engineering Research and Technology 40, no. 3 (2019): 296–304. http://dx.doi.org/10.1177/0143624418822444.

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The international Passive House Standard delivers high thermal comfort based on the principles of excellent building fabric and balanced mechanical heat recovery ventilation. Considering that the typical person in industrial countries (such as the UK) spends ∼90% of their time indoors, there are surprisingly few academic studies on air quality in the home. Indoor air quality and the prevalence of overheating are attracting an increasing amount of research attention across Europe, but post occupancy monitoring of indoor radon concentrations is severely underrepresented, especially in Ireland an

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Makasson, Raphael Cland1* Alvari K. Kefas2. "Assessment of Radon Concentration in Buildings in Adamawa South Senatorial District, Adamawa State." ISRG Journal of Arts Humanities & Social Sciences (ISRGJAHSS) II, no. II (2024): 52–57. https://doi.org/10.5281/zenodo.10801267.

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<em>This study presents an assessment of radon concentration levels in buildings within the Adamawa South Senatorial District, located in northeastern Nigeria. Radon, a naturally occurring radioactive gas, poses potential health risks, particularly when present indoors. The study aimed to determine indoor and outdoor radon concentrations, estimate the annual effective dose on the population, evaluate associated risks, and compare results with international standards to establish safety benchmarks. Sixty sample points were strategically selected across diverse geographical and environmental con

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Ouzounis, Athanasios, and Ioannis Kaissas. "A Review of Methodologies for Measuring Geogenic Rn Exhalation." HNPS Advances in Nuclear Physics 31 (June 2, 2025): 90–95. https://doi.org/10.12681/hnpsanp.8157.

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Radon (222Rn) and thoron (220Rn) are potential health hazards and therefore their concentration levels have been extensively monitored indoors across Europe resulting in indoor radon concentration maps [1]. Direct in situ measurements of geogenic radon and thoron exhalation are limited to a few locations worldwide while indoor measurements are more common. Potentially hazardous zones for long-term inhabitancy can be characterized, considering spatial geogenic radon exhalation data acquired before any construction activities. Furthermore, atmospheric simulations, earthquake prediction and ident

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14

Haynes, R. M. "Radon and Lung Cancer in Cornwall and Devon." Environment and Planning A: Economy and Space 25, no. 9 (1993): 1361–66. http://dx.doi.org/10.1068/a251361.

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The relationship between average indoor levels of radon and lung cancer mortality in the counties of Cornwall and Devon, England, are investigated. The associations of population density, social-class distribution, and regional smoking prevalence with lung cancer mortality in the local-authority districts of England and Wales were estimated by regression analysis. Low rates of lung cancer in Cornwall and Devon were predicted from the relationship. The differences between observed and predicted mortality in Cornwall and Devon districts were compared with average indoor levels of radon, which va

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Park, Ji Hyun, Cheol Min Lee, and Dae Ryong Kang. "A Deterministic Model for Estimating Indoor Radon Concentrations in South Korea." International Journal of Environmental Research and Public Health 16, no. 18 (2019): 3424. http://dx.doi.org/10.3390/ijerph16183424.

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Estimating long-term exposure to indoor radon is necessary to determine the effects of indoor radon exposure on health. However, measuring long-term exposure to radon is labor intensive and costly. While developing models for estimating indoor radon concentrations are very difficult and unrealistic due to the many factors affecting radon concentrations, several studies have attempted to estimate indoor radon concentrations with mathematical models based on mass balance equations. However, these models are only applicable to specific regions or situations, and some require actual measurement da

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16

Steinhäusler, F. "A Risk-Based Approach to Health Criteria for Radon Indoors - Report on a WHO Initiative." Radiation Protection Dosimetry 56, no. 1-4 (1994): 355–58. http://dx.doi.org/10.1093/oxfordjournals.rpd.a082485.

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Abstract The World Health Organisation (WHO), Regional Office for Europe, organised a meeting of a working group on indoor air quality in Eilat, Israel, from 28 March to 4 April 1993. The aim was to develop a risk-based approach to health criteria for radon indoors. The group reviewed the latest epidemiological data from occupational and non-occupational radon exposure, animal experiments and dosimetry. The Group issued 14 conclusions and 23 recommendations on radon related risk to health, on risk management and risk communication. In summary, radon was confirmed as a human carcinogen. Indoor

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Gasiūnas, Kęstutis, Albinas Mastauskas, and Gendrutis Morkūnas. "CONCENTRATIONS OF INDOOR AND SOIL RADON IN LITHUANIA/RADONAS GRUNTO ORE IR PATALEOSE LIETUVOJE." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 4, no. 4 (1998): 316–21. http://dx.doi.org/10.3846/13921525.1998.10531424.

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Uranium and its daughters including Ra-226 are naturally present in the Earth's crust and other environmental bodies. During decay of Ra-226 radioactive noble gas radon is produced. This gas emanates to the atmosphere from solid matrixes containing Ra-226. It causes a special problem connected with the fact that radon accumulates in the closed spaces of buildings. Increased concentrations of radon indoors in many cases are the significant source of human exposure to ionizing radiation. Radon daughters having been deposited in the airways of human lungs are the source of alpha particles which i

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Šenitková, Ingrid Juhásová, and Jiří Šál. "Indoor Radon Concentration Related to Different Radon Areas and Indoor Radon Prediction." IOP Conference Series: Earth and Environmental Science 95 (December 2017): 022053. http://dx.doi.org/10.1088/1755-1315/95/2/022053.

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Wang, Nanping, Jingming Yang, Haochen Wang, Binlin Jia, and Aimin Peng. "Characteristics of Indoor and Soil Gas Radon, and Discussion on High Radon Potential in Urumqi, Xinjiang, NW China." Atmosphere 14, no. 10 (2023): 1548. http://dx.doi.org/10.3390/atmos14101548.

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Urumqi City, located in the northwest of China, is a city with a high indoor radon concentration in a nationwide indoor radon survey in China. This study focuses on the assessment of the indoor radon level and its distribution in this city. Indoor radon measurement using RAD7 and solid nuclear track detector (SSNTD), soil gas radon measured by RAD7, and the determination of the specific activity of uranium and radium in soil samples by a high pure germanium spectrometer were performed from 2021 to 2023. The results reveal a wide range of indoor radon concentrations in Urumqi, with anomalies ab

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20

Yusuf, Mohammed Auwal, Osita Chukwudi Meludu, Pascal Timtere, Shuaibu Hussaini, and Abubakar Hamza Hamza. "Impact of Structural and Environmental Parameters on Indoor Radon Gas Levels from Locations in Gombe, Adamawa and Yobe States Nigeria." Nigerian Journal of Physics 34, no. 1 (2025): 59–75. https://doi.org/10.62292/njp.v34i1.2025.349.

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Indoor radon gas concentrations are influenced by structural and environmental factors, including ventilation rates, room volume, foundation floor thickness, indoor temperature, and relative humidity. This study investigates the impact of these parameters on radon accumulation in residential dwellings across Adamawa, Gombe, and Yobe States, Nigeria. Using Solid-State Nuclear Track Detectors (CR-39 SSNTDs), radon concentrations were measured over six months. Results indicate that poor ventilation, small room volumes, and high indoor temperatures significantly increase radon levels, while thicke

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Le, Huy Viet. "Measurement of Indoor Radon Concentration in Dalat area." Science and Technology Development Journal 21, no. 2 (2018): 71–76. http://dx.doi.org/10.32508/stdj.v21i2.432.

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A significant contribution to natural exposure of humans is radon gas, which emanates from the soil and may concentrate in dwellings. The level of radon exposure varies around the globe, but limited data are available on the daily variations of indoor radon concentrations. In this study, indoor radon measurements were performed continuously within one week at six different places in Dalat, Vietnam using the real time Smart Radon Detector Radon Eye+. The indoor radon behavior in a day follows a sine pattern, with peak values in the early morning and lowest values in the late afternoon. There ar

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Su, Chunxiao, Mingxia Wang, Yanmei Yin, et al. "Approaches to Estimating Indoor Exposure to Radon—A Systematic Review." Atmosphere 16, no. 3 (2025): 286. https://doi.org/10.3390/atmos16030286.

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Indoor radon exposure has been an increasing concern in recent years due to its health risks, like lung cancer and leukemia. Indoor radon exposure levels can be determined through measurement but with limitations. An increasing number of studies have started to apply simulation methods to assess indoor radon exposure levels in recent decades. To better understand currently available approaches for estimating indoor radon exposure, we conducted a systematic review of the current available methods for estimating the indoor radon levels. Through the search and screening of databases, a total of 2

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Haoquan, Ni, Pan Minyi, Yin Yanmei, Yan Yujie, and Su Chunxiao. "Study on indoor air radon measurement in a university in Shanghai." E3S Web of Conferences 356 (2022): 05040. http://dx.doi.org/10.1051/e3sconf/202235605040.

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With the improvement of people's requirements for living environment, the effect of indoor radon radioactivity on health has been widely concerned. In this paper, taking a university in Shanghai as an example, indoor radon concentration and its related environmental parameters were measured in some of its houses to understand the level of indoor radon concentration in its campus. The results show that the average concentrations of student dormitory, office building, and academic building are 14.79±9.15 Bq/m3,22.67±5.72 Bq/m3, and 12.55±6.71 Bq/m3 respectively. indoor radon is positively correl

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Ni, Haoquan, Minyi Pan, Yanmei Yin, et al. "Study on Indoor Air Radon Measurement in a University in Shanghai." E3S Web of Conferences 356 (2022): 05036. http://dx.doi.org/10.1051/e3sconf/202235605036.

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With the improvement of people's requirements for living environment, the effect of indoor radon radioactivity on health has been widely concerned. In this paper, taking a university in Shanghai as an example, indoor radon concentration and its related environmental parameters were measured in some of its rooms to understand the level of indoor radon concentration on its campus. The results showed that the average concentrations of student dormitory, office buildings, and academic buildings were 14.79±9.15 Bq/m3,22.67±5.72 Bq/m3, and 12.55±6.71 Bq/m3 respectively. Indoor radon was positively c

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Stojanovska, Zdenka, Blažo Boev, and Ivan Boev. "RESULTS OF INDOOR RADON MEASUREMENTS IN THE REPUBLIC OF MACEDONIA: – A REVIEW –." Contributions, Section of Natural, Mathematical and Biotechnical Sciences 38, no. 2 (2017): 137. http://dx.doi.org/10.20903/csnmbs.masa.2017.38.2.109.

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Radon and its short lived decay products accumulated in indoor environment are the main source of public exposure to natural radiations. The health effects as well as a great number of natural and artificial factors affecting the radon accumulation in indoor environments are some of the motives for the scientific interest in radon issue. Following this global trend, many studies of indoor radon in the Balkan region, including the Republic of Macedonia have been conducted in the last decade. This paper is an overview of the published papers regarding indoor radon concentration measurements with

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Mansour, Osama E., and Bashar Haddad. "Building design, resident's behavior, and indoor radon in the Commonwealth of Kentucky." Journal of Management and Engineering Integration 14, no. 1 (2021): 105–18. http://dx.doi.org/10.62704/10057/24773.

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This research aims to identify the impact of foundation type on average indoor radon levels in houses in the Commonwealth of Kentucky. It compares the averages of indoor Radon in 4 houses in Warren County, Kentucky, an area classified as zone 1 by the US Environmental Protection Agency. The predicted averages of indoor Radon greater than four pCi/L. The four houses are wood-frame structures; two of them are built on slabs-on-grade, the other two are raised on crawl spaces. A questionnaire was used to gather data about the occupant's behavior towards the indoor air quality in their houses durin

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Yarmoshenko, I., A. Onishchenko, G. Malinovsky, and A. Vasilyev. "RADON TIME SERIES IN FOUR FLATS IN ENERGY EFFICIENT MULTI-STOREY BUILDING." Radiation Protection Dosimetry 191, no. 2 (2020): 228–32. http://dx.doi.org/10.1093/rpd/ncaa158.

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Abstract Influence of living habits and meteorological parameters on indoor radon concentration in a new energy efficiency multi-storey flat building typical for Russian cities was studied using radon time series analysis. Continuous indoor radon measurements were conducted in four flats of the same multi-storey residential building in Ekaterinburg, Russia. Factors influencing indoor radon in surveyed building (by rank) are as follows: ventilation regime&gt; indoor/outdoor temperature difference &gt; wind direction. Intentional ventilation frequency, temperature difference and wind dir

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Rey, Joan Frédéric, Stéphane Goyette, Mauro Gandolla, Martha Palacios, Fabio Barazza, and Joëlle Goyette Pernot. "Long-Term Impacts of Weather Conditions on Indoor Radon Concentration Measurements in Switzerland." Atmosphere 13, no. 1 (2022): 92. http://dx.doi.org/10.3390/atmos13010092.

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Radon is a natural and radioactive gas that can accumulate in indoor environments. Indoor radon concentration (IRC) is influenced, among other factors, by meteorology, which is the subject of this paper. Weather parameters impact indoor radon levels and have already been investigated, but rarely in Switzerland. Moreover, there is a strong need for a better understanding of the radon behaviour inside buildings in Switzerland for public health concerns as Switzerland is a radon prone area. Based on long-term, continuous, and hourly radon measurements, radon distributions classified according to

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Mann, Nisha, Amit Kumar, Sushil Kumar, and Rishi Chauhan. "Radon-thoron measurements in air and soil from some districts of northern part of India." Nuclear Technology and Radiation Protection 30, no. 4 (2015): 294–300. http://dx.doi.org/10.2298/ntrp1504294m.

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Radon, thoron and their progenies in the indoor environment are considered as one of the health hazards. The alpha emitting nature of these gases made it possible to detect in indoor environment with the help of nuclear track detector techniques. The soil is the main source of indoor radon as it contains varying amounts of uranium and thorium. Thus the exhalation of radon from soil and its environmental activity needs to be studied. In the present study, the measurement of the indoor radon-thoron from the indoor environment and exhalation from soil are carried out using solid state nuclear tra

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Čeliković, Igor, Gordana Pantelić, Ivana Vukanac, et al. "Outdoor Radon as a Tool to Estimate Radon Priority Areas—A Literature Overview." International Journal of Environmental Research and Public Health 19, no. 2 (2022): 662. http://dx.doi.org/10.3390/ijerph19020662.

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Doses from the exposure to outdoor radon are typically an order of magnitude smaller than those from indoor radon, causing a greater interest on investigation of the latter for radiation protection issues. As a consequence, assessment of radon priority areas (RPA) is mainly based on indoor radon measurements. Outdoor radon measurements might be needed to guarantee a complete estimation of radiological risk and may help to improve the estimation of RPA. Therefore, authors have analysed the available literature on outdoor radon to give an overview of outdoor radon surveys and potential correlati

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Yazzie, Sheldwin A., Scott Davis, Noah Seixas, and Michael G. Yost. "Assessing the Impact of Housing Features and Environmental Factors on Home Indoor Radon Concentration Levels on the Navajo Nation." International Journal of Environmental Research and Public Health 17, no. 8 (2020): 2813. http://dx.doi.org/10.3390/ijerph17082813.

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Uranium is naturally found in the environment as a radioactive metal element with high concentrations in the Southwestern US. In this region is the Navajo Nation, which spans approximately 69,930 square kilometers. A decay product of uranium is radon gas, a lung carcinogen that has no color, odor, or taste. Radon gas may pass from soil into homes; and, indoor accumulation has been associated with geographical location, seasonality, home construction materials, and home ventilation. A home and indoor radon survey was conducted from November 2014 through May 2015, with volunteers who reported re

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Baltrėnas, Pranas, Raimondas Grubliauskas, and Vaidotas Danila. "Seasonal Variation of Indoor Radon Concentration Levels in Different Premises of a University Building." Sustainability 12, no. 15 (2020): 6174. http://dx.doi.org/10.3390/su12156174.

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In the present study, we aimed to determine the changes of indoor radon concentrations depending on various environmental parameters, such as the outdoor temperature, relative humidity, and air pressure, in university building premises of different applications and heights. The environmental parameters and indoor radon concentrations in four different premises were measured each working day over an eight-month period. The results showed that the indoor radon levels strongly depended on the outside temperature and outside relative humidity, whereas the weakest correlations were found between th

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Ptiček Siročić, Anita, Davor Stanko, Nikola Sakač, Dragana Dogančić, and Tomislav Trojko. "Short-Term Measurement of Indoor Radon Concentration in Northern Croatia." Applied Sciences 10, no. 7 (2020): 2341. http://dx.doi.org/10.3390/app10072341.

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(1) Background: Radon concentrations in the environment are generally very low. However, radon concentrations can be high indoors and can cause some serious health issues. The main source of indoor radon (homes, buildings and other residential objects) can be soil under the house, while other sources can be construction materials, groundwater and natural gas. Radon accumulates mainly in the lower levels of the buildings (especially low-ventilated underground levels and basements). (2) Methods: in this paper, we have measured the indoor radon concentrations at 15 locations in various objects (b

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Sabbarese, Carlo, Maria Luisa Feola, Fabrizio Ambrosino, et al. "A Preliminary Study of the Characteristics of Radon Data from Indoor Environments and Building Materials in the Campania Region Using PCA and K-Means Statistical Analyses." Environments 9, no. 7 (2022): 82. http://dx.doi.org/10.3390/environments9070082.

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For a healthy indoor environment, it is important to understand which materials and factors favor the generation of high levels of indoor radon. A preliminary multivariate statistical analysis was carried out on two datasets concerning indoor radon and building materials in the Campania Region using Principal Component Analysis (PCA) and the k-means partitional analysis technique. A total of 13 parameters related to building materials were used. The results show the greater contribution of building materials of volcanic origin to the concentration of indoor radon and thoron activity and the di

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Bossew, Peter. "Local probability of indoor radon concentration to exceed the threshold estimated from geogenic radon potential." Nuclear Technology and Radiation Protection 32, no. 1 (2017): 70–76. http://dx.doi.org/10.2298/ntrp1701070b.

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Indoor radon has been recognized as an important air pollutant. Based on epidemiological evidence, it is estimated that indoor radon is the second cause of lung cancer after smoking. As a consequence, one tries to limit exposure through regulations concerning the remediation of the existing and prevention of future exposure. In this context, an essential task is the delineation of areas in which it can be expected with certain confidence that time-averaged indoor radon concentrations in dwellings and workplaces exceed the reference level. These are called radon priority areas to denote that th

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Brandýsová, Alžbeta, Martin Bulko, Karol Holý, Monika Müllerová, and Jozef Masarik. "RADON-PRONE AREAS IN SLOVAKIA PREDICTED BY RESCALED RADON POTENTIAL MAPS." Radiation Protection Dosimetry 198, no. 9-11 (2022): 759–65. http://dx.doi.org/10.1093/rpd/ncac131.

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Abstract Several scientific studies have shown that high content of radon in the soil environment can be a precursor of increased indoor radon levels. Inhabited areas where elevated indoor radon concentration appears for natural (geogenic) reasons are commonly referred to as radon-prone areas. In this study, radon-prone areas in the Slovak Republic were predicted on the basis of radon potential maps after its specific rescaling. In total, 99 municipalities have been identified in Slovakia where the annual average indoor radon concentration is expected to exceed the reference level of 300 Bq m−

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Spasić, Dušica, and Ljiljana Gulan. "High Indoor Radon Case Study: Influence of Meteorological Parameters and Indication of Radon Prone Area." Atmosphere 13, no. 12 (2022): 2120. http://dx.doi.org/10.3390/atmos13122120.

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Indoor radon and meteorological parameters (temperature, humidity, pressure, precipitation, indoor dew point, wind direction, wind speed and heat index) were simultaneously monitored in an old residential house in a radon suspected area. Measurements were performed during the period from winter to summer (13 February 2021–15 August 2021). Indoor radon concentrations were measured with detectors, Airthings Corentium Home (alpha spectrometry method), and meteorological parameters were continuously monitored by the meteorological station WTH600–E (wireless weather station). The influence of geolo

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Peake, R. T. "Radon and Geology in the United States." Radiation Protection Dosimetry 24, no. 1-4 (1988): 173–78. http://dx.doi.org/10.1093/oxfordjournals.rpd.a080265.

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Abstract Regional geology and indoor radon concentrations appear to be related in the US. Using data from probability based samples, indoor radon frequency distributions have been developed in areas with similar regional geology. These frequency distributions can be used to define relative radon potential in the US. The geologic factors which determine regional radon potential are: (1) Lithologic: Rock types with known or potentially high uranium concentrations have a high probability of generating elevated indoor radon levels. Lithologies with US DOE National Uranium Resource Evaluation (NURE

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Nunes, Leonel J. R., and António Curado. "Confined Spaces in Buildings with High Indoor Radon Concentration: A Case Study Analysis with the Application of Constructive Remediation Measures." Buildings 13, no. 1 (2022): 49. http://dx.doi.org/10.3390/buildings13010049.

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Radon is an increasingly common concern, mainly when it is found indoors exposing the users of the space to radiation. As a gas, radon is an element produced due to uranium decay; it emanates naturally from soil and is considered by the World Health Organization as the second most common cause of lung cancer. Several methodologies are available for mitigating the indoor radon concentration, with distinct improvements and efficiencies that need to be proved with on-site testing. The case study here presented analyzes the effect of applying a barrier membrane, covering the pavement of a ground f

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Kojo, Katja, and Päivi Kurttio. "Indoor Radon Measurements in Finnish Daycare Centers and Schools—Enforcement of the Radiation Act." International Journal of Environmental Research and Public Health 17, no. 8 (2020): 2877. http://dx.doi.org/10.3390/ijerph17082877.

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Background: Indoor radon exposure is the second leading cause of lung cancer. Finnish radiation legislation obligates employers to measure indoor radon concentrations in workplaces, including schools and daycare centers, if they are in radon prone areas. Surveillance campaigns were conducted to ensure that the required radon measurements were performed and to gain knowledge on current indoor radon levels in daycare centers and schools. Methods: Daycare centers located in the high-radon risk municipalities were identified. Schools where indoor radon level measurements were obligatory but not pe

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Yarmoshenko, Ilia, Georgy Malinovsky, Aleksey Vasilyev, and Aleksandra Onishchenko. "Seasonal Variation of Radon Concentrations in Russian Residential High-Rise Buildings." Atmosphere 12, no. 7 (2021): 930. http://dx.doi.org/10.3390/atmos12070930.

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Assessment of the annual radon concentration is often required in indoor radon surveys of territories and individual dwellings for comparison with reference levels, studying factors affecting radon accumulation in dwellings, assessment of exposure in epidemiological studies, etc. The indoor radon surveys were carried out in multistorey buildings in eight Russian cities using solid state nuclear track detectors with an exposure period of three months. For these surveys, the estimation of annual indoor radon concentration was required to compare radon levels in buildings of high- and low-energy-

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Park, Ji, Cheol Lee, Hyun Lee, and Dae Kang. "Estimation of Seasonal Correction Factors for Indoor Radon Concentrations in Korea." International Journal of Environmental Research and Public Health 15, no. 10 (2018): 2251. http://dx.doi.org/10.3390/ijerph15102251.

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Long-term exposure to high radon concentration exerts pathological effects and elicits changes in respiratory function, increasing an individual’s risk of developing lung cancer. In health risk assessment of indoor radon, consideration of long-term exposure thereto is necessary to identify a relationship between indoor radon exposure and lung cancer. However, measuring long-term indoor radon concentration can be difficult, and a statistical model for predicting mean annual indoor radon concentrations may be readily applicable. We investigated the predictability of mean annual radon concentrati

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Jai-Won, Chung, Hyon Tae-In, and Kim Gyu-Sik. "Effect of Temperature and Humidity on Indoor Radon Concentration." International Journal of Trend in Scientific Research and Development 4, no. 2 (2020): 688–93. https://doi.org/10.5281/zenodo.3842955.

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Because radon gas is colorless and odorless, it is impossible for humans five senses to know whether one is exposed to it and as it is an inert gas that is nine times heavier than air it is prone to accumulation after being brought into the room through cracks in old buildings, connections and drains, thus creating indoor radon exposure problem. Although indoor radon concentration is related to indoor temperature and humidity, no research has been conducted to actually control indoor temperature and humidity, and to find out how changes in indoor temperature and relative humidity have affected

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Cliff, Keith. "Remedying indoor radon." Physics World 1, no. 11 (1988): 42. http://dx.doi.org/10.1088/2058-7058/1/11/24.

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Elzain, Abd-Elmoniem. "A study of indoor radon levels and radon effective dose in dwellings of some cities of Gezira State in Sudan." Nuclear Technology and Radiation Protection 29, no. 4 (2014): 307–12. http://dx.doi.org/10.2298/ntrp1404307e.

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Exposure to natural sources of radiation, especially 222Rn and its short-lived daughter products has become an important issue throughout the world because sustained exposure of humans to indoor radon may cause lung cancer. The indoor radon concentration level and radon effective dose rate were carried out in the dwellings of Medani, El Hosh, Elmanagil, Haj Abd Allah, and Wad Almahi cities, Gezira State - Central Sudan, in 393 measurements, using passive integrated solid-state nuclear track devices containing allyl diglycol carbonate plastic detectors. The radon concentration in the correspond

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Vaupotič, Janja. "Radon and Its Short-Lived Products in Indoor Air: Present Status and Perspectives." Sustainability 16, no. 6 (2024): 2424. http://dx.doi.org/10.3390/su16062424.

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Initially, basic equations are given to express the activity concentrations and concentrations of potential α-energies of radon (222Rn) and thoron (220Tn) and their short-lived products in indoor air. The appearance of short-lived products as a radioactive aerosol is shown, and the fraction of the unattached products is particularly exposed, a key datum in radon dosimetry. This fundamental part is followed by giving the sources of radon and thoron indoors, and thus, their products, and displaying the dependence of their levels on the ground characteristics, building material and practice, and

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Udovicic, Vladimir, Dimitrije Maletic, Radomir Banjanac, et al. "Multiyear indoor radon variability in a family house - a case study in serbia." Nuclear Technology and Radiation Protection 33, no. 2 (2018): 174–79. http://dx.doi.org/10.2298/ntrp1802174u.

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The indoor radon behavior has complex dynamics due to the influence of the large number of different parameters: the state of indoor atmosphere (temperature, pressure, and relative humidity), aerosol concentration, the exchange rate between indoor and outdoor air, construction materials, and living habits. As a result, indoor radon concentration shows variation, with the usual periodicity of one day and one year. It is well-known that seasonal variation of the radon concentration exists. It is particularly interesting to investigate indoor radon variation at the same measuring location and tim

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Bossew, Peter, Giorgia Cinelli, Giancarlo Ciotoli, et al. "Development of a Geogenic Radon Hazard Index—Concept, History, Experiences." International Journal of Environmental Research and Public Health 17, no. 11 (2020): 4134. http://dx.doi.org/10.3390/ijerph17114134.

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Exposure to indoor radon at home and in workplaces constitutes a serious public health risk and is the second most prevalent cause of lung cancer after tobacco smoking. Indoor radon concentration is to a large extent controlled by so-called geogenic radon, which is radon generated in the ground. While indoor radon has been mapped in many parts of Europe, this is not the case for its geogenic control, which has been surveyed exhaustively in only a few countries or regions. Since geogenic radon is an important predictor of indoor radon, knowing the local potential of geogenic radon can assist ra

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Valdbjørn Rasmussen, Torben, and Thomas Cornelius. "Use of radon barriers to reach an acceptable radon level." E3S Web of Conferences 172 (2020): 05003. http://dx.doi.org/10.1051/e3sconf/202017205003.

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A method is presented for theoretically estimating the necessary airtightness of a radon barrier. Radon barriers are used to balance the indoor radon concentration. To balance radon at an acceptable level, for a given ventilation rate for indoor air, a barrier must fulfil the requirements for airtightness and the indoor-air radon penetration from the soil, which is determined by the radon concentration in the soil gas. The method identifies the optimal radon barrier for a building. Ten different radon barriers are evaluated. Barriers include system solutions based on materials such as bitumen-

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Rey, Joan F., Stéphane Goyette, and Joëlle Goyette Pernot. "Weather Impacts on Indoor Radon Short-Term Measurements in Switzerland." Atmosphere 14, no. 7 (2023): 1163. http://dx.doi.org/10.3390/atmos14071163.

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Radon is a natural and radioactively well-known carcinogenic indoor air pollutant. Since 2020, a radon short-term proactive methodology has been proposed by Swiss authorities, which aims to evaluate the probability of overpassing the national reference value. This study aims to assess the influence of different weather parameters on indoor radon levels monitored using this methodology. To this end, different statistical tools are used, such as correlations, auto-correlations, cross-correlations, and multiple linear regressions between meteorological parameters and indoor radon levels. We show

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