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Journal Article
Published: 01 May 2020
American Mineralogist (2020) 105 (5): 708–715.
...Dariusz Malczewski; Maria Dziurowicz Abstract Emanation coefficients for radon ( 222 Rn) and thoron ( 220 Rn) were measured from fully metamict samarskite collected from Centennial Cone after 1 h and 24 h annealing in argon from 473 to 1373 K. For the 1 h annealing run, 222 Rn emanation...
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Journal Article
Published: 05 February 2020
Bulletin de la Société Géologique de France (2020) 191 (1): 3.
... anomalie de température modélisation thermodynamique Mont Tlamacas Popocatepetl volcan Mexique Monitoring of soil gas temperature, meteorological parameters, radon concentration and certain other associated physical characteristics is an important part of volcanology. Some previous...
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Journal Article
Published: 19 November 2018
Geochemistry: Exploration, Environment, Analysis (2019) 19 (3): 245–254.
... and the water we drink contain ultra-trace amounts of these elements. Measurements of uranium, thorium, radium, radon, lead and polonium radionuclides (RN) in various media have been undertaken since their discovery more than a century ago ( Becquerel 1901 ; Borkowski 1949 ; Solomon & Estes 1948...
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Journal Article
Published: 23 October 2018
The Canadian Mineralogist (2018) 56 (4): 451–462.
...), while 220 Rn emanation coefficients varied from 3 × 10 –4 % (Minas Gerais zircon) to 7 × 10 –2 % (Miask zircon). Both 222 Rn and 220 Rn emanation coefficients observed in this study correlate strongly with the absorbed α-dose from the 232 Th decay series. Radon emanations, however, do not correlate...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP466.14
EISBN: 9781786203786
... and meteorological surveys on the surface. Monitoring of the microclimate of the caves focuses on measuring the effects of tourism and monitoring the levels of radon, with the aim of the ensuring the safety of the park’s employees. Ensuring a favourable status for the underground habitats and species is laid down...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP451.11
EISBN: 9781786203328
... Abstract This volume draws together the final outputs of the five-year UNESCO / IUGS / IGCP Project 571 and presents new data on radon in the built and natural environments, radon as a diagnostic tool of geophysical phenomena, reflections and recommendations on the future of radon research...
Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP451.5
EISBN: 9781786203328
... mining areas in Colorado 1988 Indoor Radon Abatement Act (IRAA) directed EPA to list and identify areas of the USA with the potential for elevated indoor radon levels 148 Bq m −3 remediation level Houses built on or near uranium must be less than 110 Bq m −3 (3 pCi l −1 or approximately...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP451.2
EISBN: 9781786203328
... Table 1. Radon time-series: Fourier components at 95% significance Frequency (cycles/year) Variance explained (%) p -value Rank 1 51.28 2.41×10 −9 1 2 7.49 4.96×10 −2 2 Table 4. Significant harmonic components of the radon time-series Model...
FIGURES
Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP451.4
EISBN: 9781786203328
... 13401.3 1731.2 106.12 Collection – 31200.0 31203.3 4030.8 247.10 Altimeter 0.0060 701.0 701.1 90.6 5.55 Granite door-stop 0.0012 83.3 83.3 10.8 0.66 Uranium glass dish 0.0009 20.7 20.7 2.7 0.16 Table 1. Radon activity (at equilibrium in test volume...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP451.9
EISBN: 9781786203328
... Table 2. Correlation coefficients (r) between radon activity concentration (C Rn ), and outdoor air temperature (T out ), indoor air temperature (T in ), outdoor air relative humidity ( RH out ), indoor air relative humidity ( RH in ), outdoor air pressure (P out ), wind speed (v...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP451.10
EISBN: 9781786203328
... Table 1. Parametric values for drinking water in Austria Radioactivity (parametrical values) Value Unit Remark Radon 100 Bq l −1 Tritium 100 Bq l −1 Indicative dose 0.10 mSv Indicative dose: committed effective dose for 1 year of ingestion resulting from all...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP451.8
EISBN: 9781786203328
... Limousin granite, France 21.2±3.7 21 5.6/65.0 Ballon d’Alsace, France 6.9±0.2 6 4.9/8.2 Erzgebirge granite, Germany 22.2±0.44 1 Sudetes granite, Poland 24.1±7.8 4 14.6/48.9 Ulleri gneiss, Nepal 15.7±1.5 29 4.1/30.1 Table 2. Determination of the radon-222 emanation...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP451.3
EISBN: 9781786203328
... Table A1. Radon-222 and radium-226 activity concentrations in water measured in this study Type of water Country Description C Rn in water (Bq l −1 ) C Ra in water (mBq l −1 ) Hot spring UK King Spring Pump House Bath 99.1±5.6 393±51 Czech Republic Karlovy Vary...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP451.1
EISBN: 9781786203328
... Table 1. Summary of radon measurements at active volcanoes Region Volcano Mean Range Methods Description Period of measurements Type of Activity* References Italy Stromboli 5.5 0.12–63.4 E-Perm® Network – 21 stations 2002–2007 DD–CD–E Cigolini et al. (2013...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP451.7
EISBN: 9781786203328
... Table 2. Comparison of selected major health resorts providing radon treatments using isotope 222 Rn dissolved in groundwaters or present in the air of disused uranium mine workings or caves (according to Becker 2004 , Vogiannis et al. 2004 , Voronov 2004 , Zdrojewicz &...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP451
EISBN: 9781786203328
Journal Article
Published: 01 July 2017
American Mineralogist (2017) 102 (7): 1375–1383.
...Katherine Krupp; Mark Baskaran; Sarah J. Brownlee Abstract The escape rates of radon gas from rocks and minerals are of great relevance to many branches of geosciences, and it is, thus, important to understand the physical and mineralogical properties that control radon emanation rates. Mechanisms...
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Journal Article
Journal: Geosphere
Published: 01 October 2016
Geosphere (2016) 12 (5): 1656–1669.
...Jonathan Robert Joseph Davidson; Jerry Fairley; Andrew Nicol; Darren Gravley; Uwe Ring Abstract Radon anomalies are widely reported in the vicinity of active faults, where they are often inferred to result from upward migration of fluids along fault zones. We examine the up-fault flow hypothesis...
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Series: GSA Special Papers
Published: 01 May 2016
DOI: 10.1130/2016.2520(22)
.... These studies have focused mostly on naturally occurring asbestos, radon, and various metals, such as mercury and cadmium. The mineral-hazard maps and companion reports produced from these studies are typically at statewide and regional scales. They are designed for use by nongeoscientists and geoscientists...
Series: GSA Special Papers
Published: 01 May 2016
DOI: 10.1130/2016.2520(23)
... To better understand regional variations in radon occurrences, the Kentucky Geological Survey (KGS) is working in partnership with the University of Kentucky College of Nursing’s Clean Indoor Air Partnership to examine spatial and statistical associations between residential radon measurements...