Results 41 to 50 of about 3,494 (207)

Radon and Thoron; Radioactive Gases Lurking in Earthen Houses in Rural Kenya

Frontiers in Public Health, 2019
In this paper, documented studies on radon and thoron concentrations in earthen dwellings and 238U and 232Th concentrations in soil in Kenya are reviewed.
Margaret Chege, Nadir Hashim, Catherine Nyambura, Amidu Mustapha, Masahiro Hosada, Masahiro Hosada, Shinji Tokonami   +6 more
doaj   +1 more source

Using Radon (222Rn) to Trace Variability in Greenhouse Gas Emission From Tree Stems Across Species, Seasons and Stem Heights

Ecohydrology, Volume 19, Issue 3, April/May 2026.
ABSTRACT Emissions from trees are an important component of the global methane (CH4) cycle, but their spatial origins (soil vs. in‐stem), transport pathways and environmental influences are not well constrained. To address these issues, this field study characterized spatial and temporal variability in stem emissions of biologically inert radon (222Rn),
Glory A. Iorliam, Kevan B. Moffett, Amr E. Keshta, J. Patrick Megonigal, Karen L. Knee   +4 more
wiley   +1 more source

Measurement of radon and thoron concentrations of soil- gas in Al-Kufa city using RAD-7 detector

Iraqi Journal of Physics, 2021
This work represents the set of measurements of radon and thoron concentrations levels of soil-gas in Al-Kufa city in Iraq using electric Radon meter (RAD-7). Radon and thoron concentration were measured in soil-gas in 20 location for three depth of (50,
Ali A. Al-Hamidawi
doaj  

Filtration approach to mitigate indoor thoron progeny concentration. [PDF]

, 2010
This study investigates filtration of air as potential mitigation method of thoron progeny exposure. The experiments were conducted in a model room (volume 7.1 m(3)) which was equipped with a pump and an HEPA (high efficiency particulate air) filter ...
Tschiersch, J., Meisenberg, Oliver, Meisenberg, O., Chen, Y., Karg, E., Karg, Erwin, Chen, Y.H., Tschiersch, Jochen, Wang, Jin, Chen, Yongheng, Wang, J., Karg, E.W.   +11 more
core  

Potential of Soils Natural Sorbents for Environmental Decontamination From 137Cs

Land Degradation &Development, Volume 37, Issue 2, Page 779-789, 30 January 2026.
ABSTRACT This study addresses the existing research gap concerning the lack of integrated data on the role of in situ soil components in the long‐term fixation of 137Cs under natural, protected, and non‐agricultural conditions. The contamination of ecosystems by radioactive isotopes, particularly 137Cs, represents a considerable environmental hazard ...
Katarzyna Szarłowicz, Filip Jędrzejek, Marcin Stobiński, Michał Skiba   +3 more
wiley   +1 more source

Monitoring of 220Rn Concentrations in Buildings of Kufa Technical Institute, Iraq

Science and Technology of Nuclear Installations, 2015
This paper presents the measurements of thoron and the progeny in fifteen buildings in Kufa Technical Institute, Iraq, from June 2015 to April 2015 using RAD-7 detectors. Also, annual effective dose rate was calculated in all buildings under study.
Ali Abid Abojassim Al-Hamidawi
doaj   +1 more source

222Rn and 220Rn Levels in Drinking Water, the Related Health Implications, and Influencing Environmental Parameters in the Volcanic Area of Nkongsamba, Cameroon

Applied and Environmental Soil Science, Volume 2026, Issue 1, 2026.
Radon (222Rn) and thoron (220Rn), both naturally occurring radioactive gases, are significant contributors to radiation exposure, posing risks such as lung and stomach cancer. This study assesses radon and thoron concentrations in drinking water sources within the volcanic region of Nkongsamba, Cameroon.
Cebastien Joel Guembou Shouop, Raoul Fogue, Jean Felix Beyala Ateba, Mvoufo Fokou, Augustin Simo, Maurice Ndontchueng Moyo, Venkatramanan Senapathi   +6 more
wiley   +1 more source

Testing of thoron cross-interference of continuous radon measuring instruments

, 2022
Thoron (220Rn) may interfere with radon (222Rn) measurements, if present. We measured the thoron cross-interference (CI) signal of nine types of electronic radon instruments in constant thoron concentration without the presence of radon.
Dehqanzada, Rohafza, Holmgren, Olli, Turtiainen, Tuukka, Mitev, Krasimir, Georgiev, Strahil   +4 more
core   +1 more source

Assessment of Indoor Radon Exposure Risks in Relation to Dwelling Types in Gold‐Mining Communities of Akyempim, Wassa East District, Ghana

Indoor Air, Volume 2026, Issue 1, 2026.
This study investigated the effects of dwelling type, wall and floor coverings, radium‐226 concentration, soil moisture, and radon exhalation on indoor radon‐222 levels in the gold‐mining community of Akyempim, Ghana. Indoor radon was monitored using CR‐39 solid‐state nuclear track detectors deployed in 144 rooms across 21 sites for 90 days ...
Francis Otoo, Anthony Selorm Kwesi Amable, Rita Kpordzro, Oscar Kwaku Adukpo, Simon Adu, Edem Kwabla Sosu, Kofi Okyere Akyea-Larbi, Rasha S. Ahmed   +7 more
wiley   +1 more source

Comparing and Combining Heterogeneous Radon Surveys for Population Exposure and Health Burden Assessment: Procedure Proposal and Application to a Case Study

Indoor Air, Volume 2026, Issue 1, 2026.
Radon concentration data originating from different surveys can be combined for several purposes: epidemiological analyses, aimed at estimating radon‐related health risks; mapping applications, intended to identify radon‐prone areas; but also for population exposure assessment, by making optimal use of the information contained in the different ...
Niccolò Loret, Francesco Bochicchio, Sara Antignani, Rasha S. Ahmed   +3 more
wiley   +1 more source