Radon concentration levels in dry CO2 emanations from Harghita Băi, Romania, used for curative purposes

  title={Radon concentration levels in dry CO2 emanations from Harghita Băi, Romania, used for curative purposes},
  author={Tam{\'a}s N{\'e}da and Alexandru Szak{\'a}cs and Ildik{\'o} M{\'o}csy and Constantin Cosma},
  journal={Journal of Radioanalytical and Nuclear Chemistry},
The aim of this work is to study the exposure due to the radon of the patients from the dry carbon dioxide baths (mofettas) from Harghita Băi, Romania. These mofettas consist of emanated gas with high carbon dioxide content, and proved curative effects. The vertical and horizontal distribution of the radon activity concentration was monitored indoor, the seasonal variation, as well as the soil radon and thoron activity concentration outdoor, in the vicinity of the bath to determine the origin… 
Origin and transport of radon in a dry and in a wet mofette of COVASNA, Romania.
Soil radon and thoron studies near the mofettes at Harghita Bai (Romania) and their relation to the field location of fault zones
In the aftermath of postvolcanic activity, dry gases, containing mainly CO2, bring along radioactive gases such as radon (222Rn) and thoron (220Rn) that migrate together to the surface. Tectonic
Empirical Study Heating Processes Effect on the Decay of Irradiation Radon Gas Products and Calculation the Optimal Benefit Cost
An industrial advanced model is designed to address radon resulting from the dissolution of depleted uranium using based on the method of hot mixing gaseous and use the high-voltage ionization chambers, where the total concentration has been reduced from (214 Bq/m3) to a low levels within the acceptable global levels.
Indoor Air Quality in Inpatient Environments: A Systematic Review on Factors that Influence Chemical Pollution in Inpatient Wards
A systematic review on the current state of the art and knowledge related to chemical pollution in healing spaces and the emerging strategies, supported by scientific literature, for healthy inpatient rooms and their indoor air is done.
Indoor air quality in public utility environments—a review
A broad spectrum of chemical compounds were identified and determined in the indoor environment of various types of public utility rooms such as churches, museums, libraries, temples and hospitals to improve the comfort of living and the health of persons staying in it.


Effects of residential radon on cancer incidence
Radon activity concentrations of 1077 homes were surveyed in two villages of Northern Hungary to obtain the yearly averages. The distribution of indoor radon activity concentrations covered a wide
Hormesis in humans exposed to low-level ionising radiation
It is concluded that whole body exposure to low-level ionising radiation (LLIR) reduces cancer mortality rates when compared with control populations in both experimental animals and humans.
Radiation hormesis: the validity of the linear no-threshold hypothesis
In the present work, a comprehensive study of the available literature, data and reports of various radiation exposure and protection studies is presented and the choice of the approximate dose-response model for use in estimating the health effects of small doses of ionising radiation remains controversial.
It can be concluded that prolonged exposure to high levels of natural radiation possibly triggers processes such as the production of antioxidants and repair enzymes, which decreases the frequency of chromosome aberrations and the cancer incidence rate.
Molecular biology, epidemiology, and the demise of the linear no-threshold (LNT) hypothesis.
Evidence for beneficial low level radiation effects and radiation hormesis.
The linear-no-threshold (LNT) hypothesis for cancer risk is scientifically unfounded and appears to be invalid in favour of a threshold or hormesis, consistent with data both from animal studies and human epidemiological observations on low-dose induced cancer.
Changing views on ionising radiation-induced cellular effects
DNA lesions are recognised by sensor proteins which activate cellular IR responses such as cell cycle arrest, DNA repair or cell death, which clearly differ with dose and dose-rate, challenging the linear non-threshold hypothesis for radiation risk assessments.
Low-dose ionizing radiation decreases the frequency of neoplastic transformation to a level below the spontaneous rate in C3H 10T1/2 cells.
The results demonstrate that low or chronic exposure to radiation can induce processes which protect the cell against naturally occurring as well as radiation-induced alterations that lead to cell transformation, and suggest that a single low dose, at background or occupational exposure levels, may in some circumstances reduce rather than increase cancer risk.