scholarly journals Variation of ambient gamma dose rate and indoor radon/thoron concentration in different villages of Udhampur district, Jammu and Kashmir State, India

2017 ◽  
Vol 40 (3) ◽  
pp. 133 ◽  
Author(s):  
Ajay Kumar ◽  
Sumit Sharma ◽  
Rohit Mehra
Keyword(s):  
Dose Rate ◽  
Indoor Radon ◽  
Gamma Dose ◽  
Gamma Dose Rate ◽  
Jammu And Kashmir ◽  
Ambient Gamma Dose Rate

Harmonized radon data in the European Atlas of Natural Radiation

2021 ◽  
Author(s):  
Giorgia Cinelli ◽  
Peter Bossew ◽  
Marc De Cort ◽  
Valeria Gruber ◽  
Tore Tollefsen
Keyword(s):  
Ionizing Radiation ◽  
Dose Rate ◽  
Radon Concentration ◽  
Indoor Radon ◽  
Gamma Dose ◽  
European Countries ◽  
Gamma Dose Rate ◽  
Research Centre ◽  
Natural Radiation ◽  
Natural Sources

<p>As the scientific and knowledge service of the European Commission, the mission of the Joint Research Centre (JRC) is to support EU policies with independent evidence throughout the whole policy cycle. In particular, the JRC provides this support to the Directorate General for Energy by collecting, evaluating and reporting artificial environmental radioactivity measurements both for routine (REM database) and emergency preparedness (European Radiological Data Exchange Platform) purposes.<br>However, with the exception of potential large scale nuclear accidents, natural ionizing radiation is the largest contributor to the collective effective dose received by the world population. To gain a clearer overview of the natural sources of radioactivity, the JRC launched the European Atlas of Natural Radiation with the aim to provide insight into geographical variability of exposure components and their relative importance for total exposure to ionizing radiation.</p><p>The Atlas presents contributions from 100 experts in various fields, from 60 institutions such as universities, research centres, national and European authorities, and international organizations. In the first place, this Atlas aims to provide reference values and generate harmonised data for the scientific community and national competent authorities. It also offers an opportunity to the public to become familiar with the radioactive part of its natural environment. Intended as an encyclopaedia on natural radioactivity, the Atlas explains its different sources, i.e. cosmic and terrestrial radiation, and describes the current state-of-the art of knowledge by means of text, graphics and maps.</p><p>Being responsible for half of the natural dose, particular attention has been given to indoor radon, of which over one million measurements of long-term indoor radon concentration in ground-floor rooms of dwellings from 36 European countries were collected and aggregated as means within 10 km × 10 km grid cells. The updated version of the European Indoor Radon Map (December 2020) will be presented as well as the statistical analysis of the input data.</p><p>Geogenic Radon Potential and Geogenic Radon Hazard Index quantify the contribution of geogenic to indoor radon and are constructed using geogenic quantities, such as uranium concentrations in the ground, geology, soil permeability, soil radon concentration and terrestrial gamma dose rate.<br>Therefore, it was decided to focus the Atlas on the development of maps that display natural sources of radiation and also serve as quantities which predict geogenic radon. Maps of uranium, thorium and potassium concentrations in soil, covering most European countries, were created, while maps of uranium, thorium and potassium concentrations in bedrock are only available for some countries. A methodology for estimating the terrestrial gamma dose rate (based on ambient dose equivalent rate measurements) has been established, while the European terrestrial gamma dose rate map has been created using uranium, thorium and potassium concentration in soil. The practical use of the maps of the Atlas as geogenic quantities will be illustrated through different examples of scientific studies.</p><p>The Atlas is available in digital format and can be ordered as a printed version at https://remon.jrc.ec.europa.eu/ .</p><p> </p>

scholarly journals Ambient gamma dose rate as an indicator of geogenic radon potential

2021 ◽  
Vol 755 ◽  
pp. 142771
Author(s):  
D.E. Tchorz-Trzeciakiewicz ◽  
M. Rysiukiewicz
Keyword(s):  
Dose Rate ◽  
Gamma Dose ◽  
Gamma Dose Rate ◽  
Radon Potential ◽  
Ambient Gamma Dose Rate

scholarly journals Rapid estimation of environmental radioactivity surrounding Xiangshan uranium deposits, Jiangxi province, Eastern China

Nukleonika ◽  
2018 ◽  
Vol 63 (4) ◽  
pp. 113-121
Author(s):  
Nan Gan ◽  
Kuang Cen ◽  
Rong Ye ◽  
Ting Li
Keyword(s):  
Dose Rate ◽  
Water Samples ◽  
Radon Concentration ◽  
Specific Activity ◽  
Tap Water ◽  
Indoor Radon ◽  
Eastern China ◽  
Gamma Dose ◽  
Gamma Dose Rate ◽  
Jiangxi Province

Abstract The surveys of terrestrial gamma dose rate, radon concentration indoor and in water and specific activity of radionuclides of soil were carried out in 14 villages and a town in Xiangshan uranium deposit and surrounding area, Jiangxi province, Eastern China, in 2017-2018, using a scintillator dosemeter, an ionization chamber and a high-purity germanium gamma spectrometer to study radiation status in these places after remediation. A radioactive hot spot was discovered in a village near the mining office, where specific activity of 238U, 226Ra, 232Th and 137Cs of soil was as high as 1433 ± 76 Bq/kg, 1210 ± 62 Bq/kg, 236 ± 13 Bq/kg and 17 ± 1.1 Bq/kg, respectively. The dose rate on a waste rock heap was about 2423 nGy/h. Approximately 50% of the houses in a village near the uranium mining site had radon concentrations that exceeded 160 Bq/m3. There was a significant positive correlation between indoor radon concentration and outdoor gamma dose rate (R2 = 0.7876). The abnormal radon concentration was observed in a rising spring sample providing residents with tap water up to 127.1 Bq/l. Four tap water samples and three of five well water samples exceeded the limit of radon concentration of drinking water in China (11.1 Bq/l). The mean annual effective doses from gamma dose rate data were 0.86 mSv/y and 1.13 mSv/y for indoor radon. The study shows that there are some radioactively contaminated places surrounding the Xiangshan uranium mine. The local outdoor dose rate averages may be used to estimate local indoor radon concentrations.

Soil gas Radon, Indoor Radon and Gamma Dose Rate in Tirana city, ALBANIA

2009 ◽  
Author(s):  
S. Dogjani ◽  
L.L. Langore ◽  
O. Lika ◽  
R. Paci
Keyword(s):  
Dose Rate ◽  
Indoor Radon ◽  
Gamma Dose ◽  
Soil Gas ◽  
Gamma Dose Rate ◽  
Soil Gas Radon

Measurement of ambient gamma dose rate in Metro Manila, Philippines, using a portable NaI(TI) scintillation survey meter

2020 ◽  
Vol 192 (6) ◽  
Author(s):  
Rosario R. Encabo ◽  
Paolo Tristan F. Cruz ◽  
Antonio C. Bonga ◽  
Christian L. Dela Sada ◽  
Vanessa J. Omandam ◽  
...  
Keyword(s):  
Dose Rate ◽  
Gamma Dose ◽  
Gamma Dose Rate ◽  
Metro Manila ◽  
Ambient Gamma Dose Rate

scholarly journals MEASUREMENT OF GAMMA DOSE RATE IN HOSPITALS FOR REHABILITATION IN BULGARIA

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Desislava Djunakova ◽  
Bistra Kunovska ◽  
Nina Chobanova ◽  
Jana Djounova ◽  
Kremena Ivanova ◽  
...  
Keyword(s):  
Dose Rate ◽  
Comprehensive Evaluation ◽  
Indoor Radon ◽  
Exposure Dose ◽  
Gamma Dose ◽  
Gamma Dose Rate ◽  
Indoor Radon Concentration ◽  
Direct Measurements ◽  
Two Parameters ◽  
Radon Measurements

The objective of this study was to evaluate the indoor gamma dose rate in 17 inspected hospitals for rehabilitation where the radon measurements were conducted and to give a more comprehensive evaluation of the total exposure dose. The gamma dose rate in the air was measured in 355 rooms in 17 inspected hospitals for rehabilitation on the territory of Bulgaria. The maximum parameter value was 0.390 μSv/h and the minimum value was 0.06 μSv/h with the 0.157 μSv/h arithmetic mean (standard deviation - 0.160). The gamma dose rate was within the natural variations of the parameter in buildings. Direct measurements of radon were conducted, and the results ranged from 12 Bq/m3 to 3920 Bq/m3. The relationship between the two parameters was examined. A weak correlation between gamma dose rate and indoor radon concentration was found. The measurement of a gamma dose rate could be a useful parameter for carrying out radon workplace control.

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