high radon level Articles

  • The investigation and measurement of the radon gas working level inside buildings in Rafsanjan

    Radon gas and its daughters are radioactive and radiate alpha particles with high energy. These particles can cause DNA damage, which may or may not be properly repaired. Also, if these particles get into the lungs for a long period of time, they may damage the lungs' inner tissue. This is one of the most important causes of lung cancer after smoking. This paper presents a report on the ...


    By Inderscience Publishers

  • Development of an economical radon-resistant construction technique that is applicable in national radon-reduction programmes

    Radon is believed to be an important risk factor for lung cancer. Radon levels in some regions of Ramsar, a city in northern Iran, are up to 3700 Bq/m³. On the other hand, in the hot springs of Mahallat, in the central part of Iran, the indoor mean radon concentration in air is as high as 480 Bq/m³. In order to develop an economical radon-resistant construction technique, the radon-reducing ...


    By Inderscience Publishers

  • 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

  • Mitigation of workplace radon gas concentration using high–performance epoxy resin coating

    The indoor radon gas released from concrete was measured using a 0.65 × 0.65 × 0.65 m fabricated concrete slab room, simulating a workplace. The indoor radon gas concentration was monitored, and the remediation method was examined. Radon concentrations were monitored using Radon Monitor Model 1023 from Sun Nuclear. Results show that average radon concentrations reached 111 ...


    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

  • Effects of chronic radon-related external and internal irradiation: assessment of the dose effect curve below 200 mGy

    The long-term effects of professional exposure to radon are well-known. They result from the combined action on the lung epithelia of α-radiation due to radon inhalation and deposition in the lung of its decay products and external γ-radiation from uranium, thorium and their progeny. According to the guidelines applied by the USEPA and recommended by the ICRP, the maximal exposure in ...


    By Inderscience Publishers

  • Radiological hazard indices due to activity concentrations of natural radionuclides in farm soils from two high background radiation areas in Nigeria

    Abeokuta and Jos Plateau, towns in the southwestern and northern parts of Nigeria, respectively, are situated in areas of high background radiation. The use of farm soil for the construction of dwellings by local residents and for agricultural purposes in these areas may present scenarios for both enhanced external and internal exposure pathways to the population. In order to assess the gamma ...


    By Inderscience Publishers

  • Radiation prevents much cancer

    Evidence reviewed here supports the concept that chronic exposure to ionising radiation can dramatically decrease cancer incidence and mortality. This evidence includes an inverse relationship between radiation levels and cancer induction and/or mortality in: over 200 million people in the USA; 200 million people in India; 10,000 residents of Taipei who live in cobalt-60 contaminated homes; high ...


    By Inderscience Publishers

  • Radiation hormesis: the validity of the linear no-threshold hypothesis

    Through various researches and investigations it has been established that high doses of ionising radiation are harmful to health. There is substantial controversy regarding the effects of low doses of ionising radiation despite the large amount of work carried out (both laboratory and epidemiological). According to the linear no-threshold hypothesis, any amount, however small, of radiation is ...


    By Inderscience Publishers

  • How healthy is your child’s school

    I was called recently by a concerned parent. His school was undergoing mold remediation during school hours. Also, the Shigella bacterium has closed several schools in the Birmingham area. Just how safe are your children in their school, and how can you help to ensure that they are in a safe environment? By being proactive and asking questions. The biggest problems regarding ...


    By DirectCIH

  • Ionising Radiation

    Introduction The energy level of some types of radiation is high enough so that when they interact with matter they cause the formation of electrically charged particles or ion-pairs and break molecular bonds. These so-called ionising radiations are by their nature potentially harmful to life; at high doses they can be lethal and at lower doses can cause genetic damage. Ionising radiation occurs ...

  • Superinsulated Houses

    Superinsulated building is a method of energy-efficient construction that can be adapted to any structure, commercial or residential, in any climate. A superinsulated (SI) home can save 75% of the annual energy costs for heating and cooling compared to a standard home, and is also more comfortable and healthy for the occupants. SI houses can be of any design—Colonial, Victorian, Contemporary, ...


  • Working safely around hazardous materials and contaminants

    The first step in working safely around hazardous materials should always be a hazard assessment review. The OSHA standard mandates companies must conduct a hazard assessment to identify the appropriate personal protective equipment (PPE) and properly train employees on how to use it. OSHA compliance officers will review written hazard assessments for completeness and accuracy. In the case of ...

  • Good intentions may result in bad health

    President Obama’s stimulus investments in home energy efficiency may have the unintended consequence of increasing future medical costs. The stimulus bill contains $1500 tax credits for homeowners who install energy efficient doors, windows, and/or insulation. Studies in both the United States and England have shown that these home upgrades can reduce air infiltration by 50% in older homes, and ...


    By Tox Free Inc.

  • New LWT system improves safety for workers dredging radioactive materials

    Problem: Cleanup crews wanted to dredge radioactive sludge from hazardous waste pits without releasing contaminants to the environment. Solution: A remote-control system encloses the radioactive material during dredging and keeps workers at a safe distance. The Weldon Springs, Mo. Superfund site and remedial action project has four pits containing low-level radioactive raffinate debris and ...

  • Sick-building syndrome and building-related illness

    Significant health problems linked to very poor indoor air qualityIndoor Air Quality (IAQ) deals with the content of interior air that could affect health and comfort of building occupants. The IAQ may be compromised by microbial contaminants (mold, bacteria), chemicals (such as carbon monoxide, radon), allergens, or any mass or energy stressor are more prevalent than anyone could have predicted. ...

  • The New Environmental Insurance Products: When Does it Make Sense to Buy Them?

     Part One Introduction Real estate transactions with environmental problems often founder on attempts to shift the liabilities from one party to the other. In transactions with other types of problems, insurance is a popular risk transfer mechanism,  and is regularly used for that purpose, but it is used far less often when there are environmental risks. This so-called ...

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