radon level Articles

  • The study of radon levels and absorbed dose in the staff and visitors of Alisadr Cave

    CR-39 passive integrating Solid State Nuclear Track etch Detectors (SSNTDs) were used to measure atmospheric radon concentrations in the Alisadr show cave in Hamedan province, Iran. This was done in order to assess the risk from natural environmental radiation to tourists and cave guides. The study was carried out in 12 locations in the winter and spring periods. The mean radon concentration ...


    By Inderscience Publishers

  • Radon Levels in Dwellings of New Mirpur Azad Kashmir, Sub-Himalayas, Pakistan

    Radon concentrations were measured in kucha, semi-kucha and pucka houses located on the sedimentary rocks of Early Pleistocene-Pliocene Soan Formation, Pleistocene Mirpur conglomerate and recent deposits. The radon concentration was measured using CN 85 nuclear tracks etch detectors in box type dosimeters installed in the bedrooms and kitchens of the houses. It was found to vary from 14 ± 7 Bqm-3 ...


    By SAGE Publications

  • Radon distribution in groundwater of Taiwan

    Radon levels were surveyed in 517 monitoring wells constructed in five major groundwater areas of Taiwan. The radon concentration in groundwater samples varied in a wide range from below the detection limit of 18 pCi/L up to 1,100 pCi/L. A worldwide comparison of reported groundwater radon levels was conducted. Overall radon levels in Taiwan groundwater are relatively low compared to other ...


    By Springer

  • Correlation between radon levels and lung cancer mortality rates: experimental and theoretical problems

    Radon is a radioactive gas and is present in most earth materials such as soil, stone, air, water and others. Comprehensive and scientifically rigorous studies found a low lung cancer mortality rate in high radon areas. It is opposite to the linear no-threshold hypothesis (LNTH), which is a popular theory in the field of radiation safety. The fact is explained by the theory of energy transfer ...


    By Inderscience Publishers

  • Is Radon & Radiation from Granite Countertops a Concern?

    Over the past several years there have been numerous media reports about possible health concerns regarding granite countertops emitting radiation and radon gas into people’s homes and businesses.  Granite’s durability and decorative appearance have made it a popular building material in many homes and buildings. Almost any type of rock could contain naturally occurring ...


    By EMSL Analytical, Inc.

  • 3 things architects and engineers should know about Radon

    1.New buildings: how can engineers and architects predict radon levels Testing is the only way to know a building’s radon levels. At present, there are no reliable, easily applied and inexpensive methods that could conclusively identify problem sites and predict if a new building will have high indoor radon levels. There are a lot of factors that cause elevated indoor radon ...


    By Geoplast US Corp.

  • Radon-222 from different sources of water and the assessment of health hazard

    Water samples collected from different sources were analysed for radon concentrations in order to evaluate the health effect associated with radon in water. The radon concentrations were in the range of 3.56–98.57, 0.88–25.49, 0.73–1.35 and 0.24–1.03 Bq.L−1 for borehole, well, packaged and utility water, respectively. Samples from boreholes had the highest radon concentrations with about 67% ...


    By IWA Publishing

  • Monitoring radon and its progeny in the environment of the vertical 15 UD Pelletron accelerator facility

    Environmental radioactivity due to radon and its progenies in the ambient air at the vertical 15 UD Pelletron accelerator facility of the Inter University Accelerator Centre, New Delhi, India was evaluated to calculate the annual effective dose to the workers and users. The radon activity was measured with an active monitor. The activity concentrations of the radon progenies were measured ...


    By Inderscience Publishers

  • Short-term radon inhalation induces significant survival adaptive response in Balb/c mice

    According to the World Health Organization (WHO), the main health hazard from high radon exposure is an increased risk of lung cancer. In this study, 60 male Balb/c mice (20-30 g) were randomly divided into four groups of 15 animals. The animals in the 1st group were kept for 72 hours in an ordinary cage while the 2nd, 3rd, 4th groups were kept in cages with artificially elevated levels of ...


    By Inderscience Publishers

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