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Natural radon is a radioactive noble gas that occurs as the immediate decay product of radium, which is part of the 238U family, in the lithosphere. The objective of the present research is to conduct a review of the existing so far research in Bulgaria in connection with the detection and/or evaluation of water saturation of the near-surface layer's water content, as well as a comparison of the latest results in situ evaluation of the radon potential.
Source link: https://zenodo.org/record/7548801
The goal of this research is to investigate the correlation between radon measurements and the daily seismic activity rate, as well as design a method that allows estimation of seismic activity rates using only radon measurements. The earthquake catalogue of the Vancea region has been used to determine the daily seismic activity rate during a given time period in which radon measurements were also collected from January 2016 to September 2020 was used to determine the annual seismic activity rate during a given time period in which radon measurements were also collected. Both long and short periods can be used to analyze the radon signal at two different scales: long and short periods. An approximate linear relationship between the radon series and the daily seismic activity rate has been established, providing insight into the seismic activity in the study area with only the radon data.
Source link: https://zenodo.org/record/7386876
The thermal power plant and steel plant dwellings near Bellary, Ontario's Bellary District, where the minimum value is higher than the average, are shown above the average. BQM -3 and 16 to 467 Bqm -3 and -3 respectively, with the difference in concentrations of radon and thoron in the area study ranging from 111. 7 Bqm -3 to 467. 3 Bqm -3 and 16 to 510 Bqm -3 respectively. Fly ash has the highest radioactive radon nuclides. Pulmonary cancer is caused by radioactive Radon gas. The key research is to determine the indoor inhalation dose radon, thoron, and their progeny around the thermal power plant and steel plant indoor dwellings.
Source link: https://zenodo.org/record/7326176
Tobacco use in Kentucky is a significant public health issue, as almost one-quarter of adults report current tobacco use, and one-third of Kentucky households with children do not have laws limiting smoking in the household. Indoor exposure of radon is a cause of lung cancer in smokers and nonsmokers alike; however, radon exposure and smoking use has a synergistic effect on lung cancer development, with smokers or non-smokers exposed to nicotine smoke being 10 times more likely to experience lung cancer than nonsmokers. First, a review of the available literature on radon-induced lung cancer risk was performed via PubMed for all relevant studies published in English between 2008 and 2018. An exploratory, prospective research design was used to investigate the relationship between teachable moment model and teachable moment model, using the teachable moment model as a theoretical framework. Multivariate linear regression was used to investigate the relationship between county-level socioeconomic determinants of health and environmental exposures as well as household radon testing units. The BEIR-VI exposure-age-concentration model, which was not included in the EPA's evaluation of the literature, reported four models of excess relative risk commonly used to determine population attributable risk of indoor exposure to radon, including those that were not developed by the EPA. There was no difference between those who completed home radon testing and those who did not. Although 29 percent of those tested had elevated radon levels at home, several participants noted a low personal risk of lung cancer.
Source link: https://zenodo.org/record/7115383
The paper is dedicated to the study of radon volumetric changes inside a multi-story panel building on the 5th floor of a multi-story panel house. According to Radon sources and their contribution to the building's radiological condition, the building's radiological condition is considered. The time of increasing the radon content in the internal space to critical values under specific operating conditions of the structure is estimated.
Source link: https://zenodo.org/record/7093684
Accurate measurement of radon levels is absolutely essential for the dose analysis of radon exposure in buildings. The measured radon content in an office ranged from 14. 2 Bq/m3 to 23. 9 Bq/m 3 with a mean of 18. 96 Bq/m 3; however, the progeny of radon varied from 0. 00164 to 0. 00266. The mean indoor concentration of radon was considerably less than the lower levels recommended by EEC 400 Bq/m 3, NRPB 200 Bq/m 3, EPA 148 Bq/m 3, and WHO 100 Bq/m 3. The mean annual effective dose was 0. 02 mSv/y, which is less than the UNSCEAR and WHO recommended global lower average dose value of 1 mSv/y.
Source link: https://zenodo.org/record/6194233
In water samples containing 222Rn measurements ranging from 23. 4 0. 9 Bq/l to 5. 19 g/l, the presence of hydrogen sulfide and carbon dioxide in water samples has a negative effect on radon measurements in samples, according to the results compared to the gas-free samples' radon activity measurements. For a concentration of 5. 19 g/l CO2 and a apparent specific activity of 1. 29 g/l, the apparent specific activity underestimated the true value by 24. 5%, while for a concentration of 5. 19 g/l CO2 decreased by 57%.
Source link: https://zenodo.org/record/5839747
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